JPH096428A - Plant monitoring equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To monitor the work during regular inspections and enable the safe operation of the plant. [Structure] Work monitoring means 1 for monitoring the schedule and current status of construction work related to regular inspections and maintenance, equipment monitoring means 2 for monitoring the operating status of plant equipment, and monitoring the plant status based on process signals from the plant Process monitoring means 3, a display processing section 4 for displaying and processing monitoring information from these monitoring means, a safety standard information file 5 storing standards for safety evaluation of a plant performed by each monitoring means, a periodic inspection and A construction work information file 11 that stores various kinds of information about construction work related to maintenance, a work schedule 12 that stores executable work subjects managed by the work monitoring means 1, and a device monitoring means based on equipment operation execution / release. Operation history information file 21 managed by 2 and a plant that stores plant equipment information and plant structure information It is composed of a device / structure information file 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring device for safely operating a periodic inspection of a plant such as a nuclear power plant.

[0002]

2. Description of the Related Art A nuclear power plant is composed of a large number of complicated systems in order to handle radioactive materials and to produce electric power safely and reliably. A lot of maintenance work is carried out in the periodic inspections, which are carried out after every one year of operation, including overhauls of the major equipment that make up these systems. Such a nuclear plant, during normal operation,
With regard to the main process instrumentation and equipment of each system, a central monitoring device mainly consisting of a central control panel is used to perform collective monitoring and control, and use of multiplexing, safety protection devices, diagnostic systems, etc. This enables highly reliable operation. However, during the periodic inspection, some functions of the process instrumentation, the equipment and the safety protection equipment may be temporarily lost due to the maintenance work.

Therefore, the nuclear power plant currently operates the periodic inspection as follows.

(A) In order to maintain the safety of the nuclear power plant even at the time of periodic inspection, evaluate the conditions and effects of each maintenance work before carrying out each maintenance work, and maintain the function of each system of the nuclear power plant. Plan the maintenance work process by adjusting it.

(B) Management of each work item by work subject,
The maintenance department shall specify the necessary equipment operation and work implementation conditions. This will also be reviewed by the management department.

(C) The operation of the equipment is carried out and managed with the permission of the monitoring department. For this reason, after the operation is performed, a tag of operation prohibition is issued corresponding to the work subject and is posted on the device operation end.

(D) The maintenance section and the monitoring section check the work execution status and the equipment / equipment status every day, and examine whether there is any problem in the work to be executed.

(E) The maintenance department receives approval for daily work execution from the monitoring department, carries out the work within the range of approval, and reports the progress to the monitoring department.

(F) The momentary plant status is monitored / managed by hierarchical information exchange of the monitoring department-maintenance department-field work implementer.

(G) When there is an unclear part in the monitoring situation, the monitoring department directly collects and confirms the information on the site.

(H) When it is difficult to perform the work according to the planned process, the monitoring department adjusts the order of the work,
Re-plan to keep the nuclear plant safe.

[0012]

In operating the periodic inspection as described above, the following problems arise in order to shorten the periodic inspection period in the future.

(1) The monitoring department is required to have an ability to constantly grasp the status of the work to be carried out, the scheduled work and the plant equipment and judge the influence on the safety of the plant. Retaining highly qualified surveillance personnel and maintaining judgment is not easy.

(2) Information exchange between the monitoring department, the maintenance department, and the site is mainly based on dialogue and meetings. There is a limit to performing a wide range of information in real time, and if the work increases, there is a risk of human error such as oversight.

(3) Since the human system is used for the operation and management of the equipment, there is a risk of human error such as erroneous operation and forgetting when the work increases.

(4) Since the maintenance department and the monitoring department are different in the target and the range to be noticed, the information transmission may be inadequate. Especially at the boundary of the jurisdiction, it is easy to obscure how the monitoring is performed.

(5) Since the progress of work and the state of equipment are managed by human-made document creation and reporting, real-time monitoring is difficult due to delays in transmission and the like. The status is grasped by tag collection / verification on a daily basis.

[0018] Although the equipment for supporting the management work related to these is being progressively machined, although the efficiency of office work and the organization of work can be promoted, it does not directly lead to the improvement of the monitoring function. As long as a lot of human work remains, the above problem cannot be solved.

With respect to the problem of partial loss of process monitoring during periodic inspections, some plants employ a method in which temporary design equipment dedicated to periodic inspections is installed in addition to regular instrumentation. However, since the target of temporary design is limited to the main parameters, it is insufficient to monitor the inspection and maintenance work in a wide range.

As a technique for supporting maintenance and inspection work during operation, a diagnosis is performed when an alarm occurs, and a list of inspection devices to be set and confirmed is output, for example, the proposal of Japanese Patent Laid-Open No. 62-278696. However, this technology must cover the possibility of inspecting all types of equipment, and the expected behavior of equipment and the structure of the plant may change during periodic inspections when power is lost or remodeling work is performed. , Difficult to apply.

Further, as an apparatus for preparing a plant structure, a functional model, and interlock information and creating a maintenance procedure when an abnormality occurs, for example, there is a proposal of Japanese Patent Laid-Open No. 3-67127, which also checks all equipment. It is equally difficult to cover the possibilities of. The practical range of these is to support the creation of inspection information assuming the implementation work.

Similarly, as an apparatus for evaluating whether or not the operation of equipment related to work affects other work based on the structural model of the plant, for example, there is a proposal of JP-A-62-126406. Even if it is effective for interference check, it does not have a function to evaluate the effect of work on plant safety through equipment operation, and cannot evaluate the effect of individual work on plant safety. .

Although the above three assistive technologies are effective at the planning stage of the work process, there is no method for compensating for the lack of input or the inconsistency between the planned work and the actual work for the model or rule of the assumed equipment. , It is not suitable for use in monitoring the status of work being performed.

As a technique for supporting the provision of work information to the site, there is a special device as a device for supporting the reference of design information by using a portable terminal at the site, and the abnormality diagnosis and maintenance procedure creation by dialogue. There is a proposal for Kaihei 1-17105. However, when the impact information between multiple construction works is required like in the case of periodic inspection, there is a problem that the work implementation status of the entire plant cannot be seen, so that individual maintenance work information cannot determine the work implementation. . Japanese Patent Laid-Open No. 3-231597 proposes, as a means for managing work execution information on site, a device that links a work site with a monitoring computer by using a portable terminal having a unique identification number. However, there is an inconvenience that forces field workers to attach and detach the portable terminal and perform input operations, and it is not possible to associate the device operation with the work. For this reason, the monitoring department cannot monitor the equipment status and work in a related manner, and cannot perform real-time on-site monitoring that is essentially required for plant safety monitoring.

Further, in order to evaluate the soundness of the plant equipment in operation, a calculation model for quantitatively or qualitatively simulating the plant behavior is used, and due to the difference between the tendency that the process amount should take and the actual behavior, a failure occurs. Methods for diagnosing locations and failure events have been proposed. However, it is difficult to confirm whether the calculation model is constructed normally because it is not possible to determine whether the instrumentation of the process amount that should be used as a detour is lost during maintenance during the periodic inspection.

The present invention has been made in view of the above circumstances, and provides a plant monitoring apparatus for monitoring the situation in which the work related to the periodic inspection is carried out and enabling the safe operation of the plant of the nuclear power plant. The purpose is to provide.

[0027]

[Means for Solving the Problems] That is, the plant monitoring apparatus of the present invention is a work monitoring means for managing the scheduled execution of construction work related to the periodic inspection and maintenance of a nuclear power plant and the status of the work, and the work monitoring means. Device monitoring means for inputting the monitoring information from the means, monitoring the equipment state based on the operation of the plant equipment, and outputting the monitoring information to the work monitoring means, and each monitoring from the equipment monitoring means and the work monitoring means Process monitoring means for inputting information, monitoring the plant state based on the process signal input from the plant, and outputting monitoring information to the work monitoring means and the equipment monitoring means, the work monitoring means, the equipment monitoring means and the process At least one of the monitoring means,
It is characterized by having a consistency evaluation means for evaluating the consistency with the monitoring information from the other monitoring means, and a safety evaluation means for evaluating the safety of the plant based on the safety standard to be satisfied by the plant.

Further, in the plant monitoring apparatus of the present invention, the work monitoring means includes information on the main process of the construction work related to the periodical inspection and maintenance, and equipment operation necessary for carrying out each work related to this main process. Based on the construction work information file that stores information on implementation requirements, this construction work information file, and the monitoring information from the device monitoring means or process monitoring means, the work to be performed is extracted, and it is evaluated whether it is feasible or not. The work evaluation means and the work evaluated to be feasible by the work evaluation means are managed as planned work, and the work is managed as a work in progress based on the notification of the start and end of the work among them. And means.

In the plant monitoring apparatus having the above-mentioned configuration, the work evaluation means extracts the work to be carried out in advance based on the main process information, and this work is managed by the carried work management means. And it is possible to carry out the work based on the equipment status of the plant obtained from the monitoring information from the equipment monitoring means or process monitoring means by evaluating whether or not the work can be carried out based on whether there is a contradiction between the scheduled work and the above implementation requirements. It is characterized in that whether or not it is evaluated is output, and the evaluation result and the reason when it is evaluated as infeasible are output.

Further, in the plant monitoring apparatus of the present invention, the work monitoring means calculates the spare time of the work that can be managed by the work management means based on the critical path described in the main process information. It is characterized by further comprising a means for doing.

Further, in the plant monitoring apparatus of the present invention, the work monitoring means obtains a safety standard information file storing a system state satisfying the safety standard and a system state satisfying the safety standard based on the safety standard information file. And a target system state determination means for determining a device state range of the system configuration equipment, wherein the work evaluation means sets the device state range of the corresponding system configuration equipment from the target system state determination means in the process of evaluating the work that can be performed. It is characterized in that whether or not the work meets the safety standard based on the evaluation.

Further, in the plant monitoring apparatus of the present invention, the work monitoring means stores a construction work information file for storing information on a device operation required for each work, and information on a device state corresponding to the device operation for each device, By notification of work execution,
Construction work information Equipment operation history management means for evaluating the equipment operation of the work based on the equipment operation file and managing the history of equipment status of the plant accompanying the work, and equipment status and equipment obtained by this equipment operation history management means It is characterized by further comprising operation evaluation means for evaluating the consistency with the device status obtained from the monitoring means and outputting the evaluation result.

Further, in the plant monitoring apparatus of the present invention, the work monitoring means stores plant equipment information indicating a possible operation and operation source of each equipment of the plant and plant structure information indicating a connection relationship between the equipment.・ Structure information file and equipment isolation method evaluation means for requesting a method to isolate the equipment based on inspection equipment information of work to be performed based on this plant equipment / structure information file, and equipment isolation method evaluation for work to be performed Based on the equipment isolation method obtained by means, equipment status obtained from equipment monitoring means, and plant equipment / structure information file, it is evaluated whether work is feasible and the effect of the work on the system is evaluated. And a system influence evaluation means.

Further, in the plant monitoring apparatus of the present invention, the work monitoring means stores the equipment isolation method required by the equipment isolation method evaluation means for each inspection equipment, and responds by a read request from the equipment isolation method evaluation means. And a device isolation method database for outputting the device isolation method.

Further, in the plant monitoring apparatus of the present invention, the work monitoring means is installed in association with a work recording means which is possessed by a field worker and records owner information and a work type to be carried out, and a work place. A work determination means for reading the record information of the work recording means input by the field worker, and a work history management for managing history information of the work performed by the field worker based on the information read by the work determination means Means and a work progress evaluation means for evaluating the progress status of the work based on the work history information managed by the work history management means.

Further, in the plant monitoring apparatus of the present invention, the equipment monitoring means obtains a safety standard information file that stores a system state that satisfies the safety standard, and a system state that satisfies the safety standard based on the safety standard information file. Target system condition determining means for determining the device condition range of the system constituent device of
And a system state evaluation means for evaluating the safety of the plant based on whether the equipment state based on the operation of the equipment matches the corresponding equipment state range obtained by the target system state determination means. To do.

Further, in the plant monitoring apparatus of the present invention, the equipment monitoring means uses the equipment state and the target system state determination means brought about by the equipment operation of the work for the work under execution or scheduled to be carried out obtained from the work monitoring means. It is characterized by further comprising safety monitoring work selecting means for selecting a work that may conflict with the safety standard based on the obtained corresponding equipment state range.

Further, in the plant monitoring apparatus of the present invention, the device monitoring means stores the plant device information indicating a possible operation and operation source of each device of the plant and the plant structure information indicating the connection relation between the devices.・ Predict the trend and range of process signals subject to safety standards based on the structure information file and the equipment status and plant equipment judged from the equipment operation history based on the execution / cancellation of equipment operation The process signal predicting means, the process signal evaluating means for evaluating the consistency between the process signal obtained from the process monitoring means and the process signal predicted value obtained from the process signal predicting means, and the evaluation result by the process signal evaluating means are inconsistent. When,
A device information quality evaluation means for evaluating the validity of the plant device information and the plant structure information used for the prediction of the process signal by a dialogue with the user is provided.

In the plant monitoring apparatus of the present invention, the equipment monitoring means is provided from the operation monitoring means and the manual operation recording means installed in the vicinity corresponding to the manual field equipment for recording the operation history of the equipment. According to the equipment operation target in the work to be performed, the operation operation information is written in the manual operation recording means, the device operation execution signal for notifying the execution of the equipment operation is output, and the operation monitoring means sends the operation information. And an operation history management unit that manages the operation history of each manual field device by a device operation execution signal sent from the portable operation management unit. To do.

Further, in the plant monitoring apparatus of the present invention, the manual operation recording means stores operation history storage means for storing the history of work and equipment operation on the corresponding equipment, and a status display for displaying the operation status of the equipment. The portable operation management means reads the stored information in the operation history storage means from the operation monitoring means, the operation target input means for inputting the equipment operation target in the work to be performed, and the manual operation recording means. An operation display unit for displaying the device operation target input by the operation target input unit and displaying the information read by the reading unit for collation, and inputting an execution confirmation signal of the device operation according to the device operation target. The confirmation signal input means and the device operation state confirmed by the execution confirmation signal input are written in the state display means of the manual operation recording means and corresponded. A writing means for writing the device operation information in the operation history storage unit, the execution confirmation signal input, characterized by comprising an execution signal output means for sending a device operation execution signal to the operation history management means.

Further, in the plant monitoring apparatus of the present invention, the manual operation recording means records an operation history storing means for recording a history of work and equipment operation related to the corresponding equipment, and a status display for displaying the operation status of the equipment. Means and a control means for controlling the operation history storage means and the status display means by performing wireless signal communication between the operation history management means and the operation history management means. Operation target input means for inputting a device operation target, communication control means for controlling communication with a manual operation recording means by a radio signal, and storage in the operation history storage means from the manual operation recording means via the communication control means. A reading means for reading information and an operation display hand for displaying the equipment operation target input by the operation target input means and displaying the information read by the reading means for collation. And an execution confirmation signal input means for inputting an execution confirmation signal of the equipment operation according to the equipment operation target, and a communication control means and a control means for the manual operation recording means for the equipment operation content confirmed and executed by the execution confirmation signal input. Writing means for writing via the status display means and corresponding equipment operation information in the manual operation history storage means via the operation display means, and execution signal output means for transmitting the equipment operation execution signal to the operation history management means by the execution confirmation signal input It is characterized by comprising.

Further, in the plant monitoring apparatus of the present invention, in the above configuration, the portable operation management means periodically generates a wireless signal including device information by the communication control means, and the manual operation recording means is the control means by the portable operation management means. The approach to the device is detected based on the wireless signal from the device, and when the portable operation management means approaches the device operable distance, a wireless signal for prompting a confirmation operation for performing the device operation is output. .

Further, in the plant monitoring apparatus of the present invention, in the above-mentioned configuration, the manual operation recording means performs periodic communication with other plural manual operation recording means to make another manual operation recording means. Is detected, and the on-site worker is notified of the detected failure information.

Further, in the plant monitoring apparatus of the present invention, the equipment monitoring means stores the equipment status before construction in which the status of the equipment and the system at the time of starting the work is stored according to the start information of the inspection work obtained from the work monitoring means. And the current state of the equipment and the system stored in the pre-construction equipment state storage means according to the completion information of the inspection construction work obtained from the means and the work monitoring means. And a plant state matching evaluation means for evaluating whether or not the states of the equipment and system are the same.

Further, in the plant monitoring apparatus of the present invention, the process monitoring means stores a process safety standard information file for storing a process safety standard to be satisfied by the plant, process signal input means for inputting a process signal from the plant, By the indefinite process input / output selecting means for selecting the process signal of the input / output points which cannot be detected by the work among the process signals of the input / output points inputted by the process signal inputting means, and the indefinite process input / output selecting means. Process alternative value evaluation means for finding an alternative process value using the associated process signal for the selected undetectable input / output point, and process values and process safety standards from the process signal input means and process alternative value evaluation means Compare with the process safety standard in the information file and meet the process safety standard. Characterized by comprising a process safety evaluation means for evaluating whether there is a free process values.

Further, in the plant monitoring apparatus having the above-mentioned configuration, the indefinite process detection means is based on the impact evaluation of the work being performed on the process instrumentation performed by the work monitoring means, and the process at the input / output point which cannot be detected. It is characterized by selecting signals.

Further, in the plant monitoring apparatus of the present invention, the process monitoring means stores a process safety standard information file for storing a process safety standard to be satisfied by the plant, process signal input means for inputting a process signal from the plant, Safety signal monitoring means for comparing the process signal input by the process signal input means with the safety standard of the process in the process safety standard information file and issuing an alarm if the standard is not satisfied, and an alarm by this safety standard monitoring means And an operation guide means for presenting an operation procedure for returning to a plant state that meets the safety standard when the occurrence occurs.

In the plant monitoring apparatus having the above-mentioned configuration, the operation guide means is a work in progress which is obtained by the work monitoring means in the operation procedure which is prepared in advance for each alarm and comprises a combination of equipment operations for returning to normal. It is characterized in that selectable operation procedures are evaluated and presented based on the device operation information.

Further, the plant monitoring apparatus of the present invention includes monitoring information creating means for creating display information based on information output from the work monitoring means, the equipment monitoring means and the process monitoring means, and central monitoring control. Display means installed in the room to display information for plant operation / monitoring, input means for inputting commands / requests for plant operation / monitoring, communication means for communicating with the plant site, and monitoring mode during normal operation And monitoring mode switching means for switching the monitoring mode at the time of periodic inspection to selectable, and when the monitoring mode at the time of periodic inspection is selected by this monitoring mode switching means, display information from the monitoring information creating means and communication means are used. Display control means for displaying the display information transmitted from the plant site on the display means.

Further, the plant monitoring apparatus of the present invention comprises a monitoring information creating means for creating display information based on information output from the work monitoring means, the equipment monitoring means and the process monitoring means, and a monitoring department. A plurality of display means and input means installed in various places of the maintenance department and the plant site, and display information from the monitoring information creating means is displayed on the requested display means in response to a display request input via the input means. The display control means and the communication means for performing communication among the monitoring section, the maintenance section, and the plant site, and displaying the received display information on the display means are provided.

In the plant monitoring apparatus having the above structure, the monitoring department is provided with the display / input means commonly used by a plurality of users in the living room and the display / input means individually used in the living room. At least one individually used display / input means shall be installed, and at the plant site, a portable display / input means possessed by each worker and a stationary display / input means commonly used shall be installed. Is characterized by.

Further, in the plant monitoring apparatus of the present invention, the equipment status confirmed by the monitoring information creating means and the display control means through the communication means from the plant site through the communication means, and the work management by the work monitoring means and the equipment monitoring means. Displaying either the offline device status obtained by the above or the online device status obtained by the process monitoring means on the corresponding device symbol of the plant system diagram displayed on the display means so that the information source can be discriminated. Is characterized by.

Further, the plant monitoring apparatus of the present invention is obtained by the monitoring information creating means and the display control means by the equipment status obtained from the plant site via the communication means and the work management by the work monitoring means and the equipment monitoring means. Either the off-line equipment status obtained or the on-line equipment status obtained by the process monitoring means is selected in a preset priority order and displayed on the equipment symbol corresponding to the plant system diagram displayed on the display means. It is characterized in that it is displayed so that the information source can be identified.

Further, in the above plant monitoring device, when there is a device state inconsistent between the information sources by the monitoring information creating means and the display control means, the inconsistent device state and the information source are displayed on the plant system diagram. It is characterized by doing.

In the plant monitoring apparatus of the present invention, the monitoring information creating means and the display control means enable the equipment state predicted from the operation history management of the work monitoring means to be different from the equipment state obtained by the equipment monitoring means. It is characterized in that it is displayed in a distinguishable manner on the plant system diagram displayed on the display means.

Further, in the plant monitoring apparatus, the system including the devices whose device state predicted from the operation history management of the work monitoring unit and the device state obtained by the device monitoring unit are different by the monitoring information creating unit and the display control unit. Is displayed on the display means in a distinguishable manner.

Further, in the plant monitoring apparatus of the present invention, the work information monitoring means manages the equipment selected by the monitoring information creating means and the display control means from the plant system diagram displayed on the display means through the input means. It is characterized in that the contact information of the on-site worker is extracted from the ongoing work information and displayed on the display means.

Further, when the plant information of the equipment is confirmed by the monitoring information creating means and the display control means through the communication means, the plant monitoring apparatus displays on the display means that the equipment has been confirmed on the spot. It is characterized in that it is displayed in a distinguishable manner on the displayed plant system diagram.

Further, the plant monitoring apparatus of the present invention is being implemented by the work monitoring means for the equipment selected by the monitoring information creating means and the display control means from the plant system diagram displayed on the display means through the input means. It is characterized in that the operation information of the device based on the work is taken out and displayed on the display means.

Further, in the plant monitoring apparatus, the confirmation of the off-line equipment state by the work management of the equipment by the monitoring information creating means and the display control means is confirmed based on the confirmation input operation through the input means. It is characterized in that it is displayed in association with the device in a distinguishable manner on the plant system diagram displayed on the display means.

Further, the plant monitoring apparatus of the present invention uses the monitoring information creating means and the display control means to perform the work to be carried out while waiting for the completion of the preceding work along the main process of the construction work related to the periodic inspection and maintenance. The equipment related to this work is selected based on the equipment operation information from the work monitoring means, and the corresponding equipment symbol of the plant system diagram displayed on the display means is identified in response to the completion notification of the preceding work from the work monitoring means. The feature is that the display can be changed as much as possible.

Further, the plant monitoring apparatus of the present invention, by means of the monitoring information creating means and the display control means, operates the equipment related to the work for temporarily changing the equipment state for the isolation operation required for the work execution. It is characterized in that it is displayed on the display means so that it can be identified on the plant system diagram based on the operation history information associated with the work management from the monitoring means.

In the plant monitoring apparatus, the monitoring information creating means and the display control means perform selection operation by the input means of the equipment symbol of the plant system diagram identifiably displayed on the display means, and the equipment of the equipment concerned is selected. It is characterized in that the work information relating to the change of the device state is displayed on the display means.

Further, in the plant monitoring apparatus, the monitoring information creating means and the display control means, in response to the state return notification of the equipment from the work monitoring means, the plant system diagram identifiable on the display means. The feature is that the display state of the device is changed.

Further, in the plant monitoring apparatus of the present invention, the monitoring information creating means is provided with a storage means for storing information of a person in charge who performs on-site attendance monitoring at the time of performing the work, and the inspection device accompanying the work execution from the work monitoring means. By information, search the person in charge who performs on-site attendance monitoring from the storage means,
The inspection system symbol is displayed on the plant system diagram displayed on the display unit via the display control unit in association with the inspection device symbol.

Further, in the plant monitoring apparatus of the present invention, the monitoring information creating means uses a communication means for exchanging information with a plant site or another department about any device on the plant system diagram displayed on the display means. When it is carried out via the display control means, it is displayed on the device symbol on the plant system diagram that the information exchange is being executed or has been completed.

Further, in the plant monitoring apparatus having the above-mentioned configuration, the monitoring information creating means detects the information exchange by communication and records and saves the information exchange history for each device when the information is exchanged through the communication means. The history of information exchange of the equipment is displayed on the display means via the display control means by selecting the equipment via the input means from the plant system diagram displayed on the display means.

Further, the plant monitoring apparatus of the present invention includes monitoring information creating means for creating display information based on information output from the work monitoring means, the equipment monitoring means and the process monitoring means, and the monitoring information creation. And a display unit for displaying the display information from the unit, and the monitoring information creating unit displays on the display unit the evaluation result about the influence on the system output from the system influence evaluating unit, and the device selection operation by the user. In response to a request for examination of plant equipment information and plant structure information by, the plant equipment information and plant structure information related to the equipment are displayed on the display means from the plant equipment / structure information file.

Further, the plant monitoring apparatus of the present invention comprises a monitoring information creating means for creating display information based on the information respectively output from the work monitoring means, the equipment monitoring means and the process monitoring means, and the monitoring information creation. Display means for displaying the display information from the means, the equipment information quality evaluation means, in response to a review request from the user, outputs the corresponding plant equipment information and plant structure information to the monitoring information creating means, the user It is characterized by keeping records of what has been requested and reviewed by.

Further, the plant monitoring apparatus of the present invention is a system in which the plant device information and the plant structure information stored in the plant device / structure information file connect the connection information of the devices constituting the operating system of the plant in series. It is characterized by including an operating system logic represented by a logical function of a device state that realizes a flow of the system, which is a logical product of logical products and devices connected in parallel.

Further, in the plant monitoring apparatus of the present invention, the plant device information and the plant structure information are such that the connection information of the devices constituting the operating system of the plant is ANDed with the devices connected in series and the devices connected in parallel are ORed. And the operating system logic represented by a logical function of the device state that realizes the flow of the system, and the device isolation method evaluation means should be implemented based on the operating system logic of the plant device information and plant structure information. From the inspection equipment information of the work, obtain the isolation range of the inspection equipment represented by a logic function of the equipment state, from the equipment state logic of this isolation range and the equipment state logic of the system corresponding to the plant equipment information and plant structure information, It is characterized in that mutually established device state logics are obtained as a method of isolating inspection devices capable of performing the above-mentioned work.

[0072]

In the plant monitoring apparatus having the above-mentioned configuration, the work monitoring means uses the work information related to the periodical inspection and maintenance to operate the equipment required for each work title and the resources related to the work (use of common equipment, personnel, work space). And equipment carry-in / out routes, work time, necessary inspection information, etc.) to determine whether work can be performed. The work status is judged and monitored by the work start and end inputs. The equipment monitoring means determines the implementation status of equipment operation by a site worker, and outputs and monitors the plant safety standard evaluation determined from the operation history and equipment or system information. In addition, equipment monitoring means issuance of tags
Instead of managing the status of the manual equipment on site by collection, the operation recording means corresponding to the tag is provided on the field equipment, the recording operation is collated by the mobile terminal on site, and the operation information is collected. The process monitoring means outputs the process signal related to the safety standard and the evaluation of the safety standard in real time. As described above, the work monitoring means gives the desired state of the equipment obtained from the offline management information, the equipment monitoring means gives the equipment state based on the operation of the equipment on the site, and the process monitoring means gives the real time. Provides an online instrument status signal.

Each monitoring means aims at obtaining a plant situation from offline information and online information whether or not a plan in consideration of working conditions is executed correctly and surely so that plant safety is maintained in advance. There is. However, by itself, equipment stoppage, human error,
Due to work delays, etc., there is a risk of missing a deviation from the desired plant state.

In the plant monitoring apparatus of the present invention, the monitoring capability is enhanced by combining these monitoring means. For the equipment operation related to the work subject that is determined to be being carried out by the work monitoring means, and the operation history obtained from the equipment monitoring means, it was detected that the valve to be closed for work remained open, etc. If there is an inconsistency in the device status, the device is output in association with the work subject. With this, oversight of work that should be performed and malfunctions of equipment are discovered early.
The process monitoring means changes the process signal for which the work monitoring means determines the loss of function to an alternative signal. This effectively compensates for the lack of process monitoring associated with construction. In addition, by evaluating the predicted value of the process signal from the device monitoring means, the mismatch of the process signal and the predicted value is output. With this, an abnormality in the process instrumentation or an oversight of the operation influence determined not to affect the process can be determined early. Further, when a calculation model or the like is applied to the device monitoring means, conversely, it is possible to evaluate the validity of the calculation model or the like by confirming that no inconsistency occurs during normal process instrumentation.

By monitoring each information so that the outputs of the work monitoring means, the equipment monitoring means, and the process monitoring means are matched, it is possible to quickly, correctly, and extensively determine whether the safety standards to be satisfied by the plant are maintained. Can be evaluated easily. Information of each monitoring means, lack of information of other monitoring means,
Since it is possible to detect, diagnose, and correct errors, deviations from limits, etc., it is possible to maintain plant safety even during the loss of some of the functions of process instrumentation, equipment and safety protection equipment during regular inspections. . Due to the redundancy of the monitoring means, it is possible to supplement the lack of information input assumed at the planning stage of the work process and the inconsistency between the scheduled work and the actual result, and monitor the status of the work being performed. Since the status of the equipment and the work can be monitored in relation to each other, the work of the entire plant can be grasped, and real-time monitoring of the site necessary for plant safety monitoring can be performed. In addition, since the offline information that is manually input can be directly captured, it is possible to realize monitoring that is consistent with the current inspection and construction system mainly by humans. Since the plant monitoring apparatus of the present invention can perform sufficient monitoring even if the density of regular inspection work increases, the regular inspection work can be shortened while ensuring safety.

[0076]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of an embodiment of the plant monitoring apparatus of the present invention. The work monitoring means 1 for monitoring the schedule and the current state of the construction work related to the periodic inspection and maintenance, and the operation of the plant equipment. Equipment monitoring means 2 for monitoring the situation, process monitoring means 3 for monitoring the plant state based on process signals from the plant, display processing section 4 for displaying the monitoring information from these monitoring means, and each monitoring means. Safety standard information file 5 that stores the safety evaluation standard of the plant, a construction work information file 11 that stores various information about the construction work related to the periodic inspection and maintenance, and the work monitoring means 1 A work schedule 12 that stores the possible work titles, and operation records that are created and managed by the device monitoring means 2 based on the device operation execution / release. Composed of the information file 21, and plant equipment information indicating the unique information of the devices of the plant, the plant equipment and structure information file 22 for storing plant structure information indicating the connection information or the like between the devices of the plant.

Next, the operation of this embodiment will be described.

The work monitoring means 1 uses the construction work information file 11 that stores various kinds of information about construction work related to regular inspections and maintenance, and determines necessary equipment operations for each work title and resources related to the work (for example, shared equipment). Use, personnel,
A work space, a device carry-in / out route, a work time, necessary inspection information, etc.) are extracted, and it is determined whether or not work can be performed with respect to the work subject from the viewpoint of the device operation and resources, and the result is output to the display processing unit 4. Further, whether or not the work can be performed is determined from the viewpoint of the safety standard of the plant in the safety standard information file 5, only the work subject that is evaluated as possible is registered in the work schedule 12, and the work schedule is based on the notification of the work start and end. The execution status of the work in 12 is judged and monitored.

The equipment monitoring means 2 stores the history of equipment operation based on the equipment operation execution and cancellation signals notified when the site worker carries out equipment operation.
Recorded in 1 to judge and monitor the implementation status of equipment operation. Further, the equipment monitoring means 2 evaluates the safety of the plant using the operation history information file 21 and the plant equipment / structure information file 22 based on the safety standard in the safety standard information file 5, and displays the evaluation result. Output to section 4.

The process monitoring means 3 inputs the process signal related to the safety standard from the plant, compares it with the process safety standard such as the alarm limit value stored in the safety standard information file 5, and evaluates the evaluation result in real time. (real time)
Is output to the display processing unit 4.

As described above, in the plant monitoring apparatus of this embodiment, the work monitoring means 1 gives the desired state of the equipment obtained from the offline management information, and the equipment monitoring means 2
The equipment status based on the on-site equipment operation is given, and the process monitoring means 3 gives a real-time online equipment state signal.

Here, as safety standards in the nuclear power plant at the time of regular inspection, the subcriticality of the reactor is secured, the heat removal function from the reactor is secured, the reactor water level is secured, the engineering safety system is on standby, etc. Can be considered. When the plant function evaluation that satisfies these requirements is subdivided, it results in the function evaluation of the systems and equipment that make up the plant.

In the present embodiment, if the online process signal is available, the process monitoring means 3 can determine the necessary equipment state. If the online process signal is not available, or if the function of the system is to be evaluated by the connection state of a plurality of device states, the device monitoring means 2 can determine the required device and system state.

In the plant monitoring apparatus of this embodiment, the monitoring capability is enhanced by the combination of the work monitoring means 1, the equipment monitoring means 2 and the process monitoring means. For example, the device operation obtained from the construction work information file 11 relating to the work subject determined to be performed by the work monitoring unit 1 and the device operation implementation status in the operation history information file 21 obtained from the device monitoring unit 2 In the meantime, when there is a mismatch in the equipment state such as the valve to be closed for work remaining in the open state, the equipment is output in association with the work subject.
As a result, an oversight of the work to be performed and a malfunction of the device can be found early.

Further, the process monitoring means 3 modifies the routine instrumentation of the process signal, in which the work monitoring means 1 judges that the function is lost due to the work, if there is an alternative instrumentation, to perform the process monitoring based on this. This makes it possible to effectively compensate for the lack of process monitoring that accompanies construction.

The equipment monitoring means 2 predicts and evaluates a predictable process signal by using the operation history information file 21 and the plant equipment / structure information 22. The history information of the device operation related to the process signal is output regarding those that do not match the input value that is input. As a result, it is possible to detect an abnormality in the process instrumentation or an oversight of the operation influence that was determined not to affect the process at an early stage. Further, when a calculation model or the like is applied to the device monitoring means, it is possible to evaluate the validity of the calculation model or the like by confirming that no inconsistency occurs when the process instrumentation is normal.

FIG. 2 is summarized in a table for comparing the characteristics of the monitoring functions of the plant monitoring apparatus of this embodiment and each monitoring means alone. In this embodiment, it is shown that the functions of the respective monitoring means are effectively combined to improve the real-time property, the reliability, the scope of application, the reason for the purpose of plant monitoring, and the ease of monitoring. There is.

Next, the work monitoring means 1 in the plant monitoring device will be described in more detail.

FIG. 3 shows the first embodiment of the work monitoring means 1 of the plant monitoring apparatus of the present invention. The work monitoring means 1 of this embodiment is a main process of construction work related to regular inspection and maintenance. Information 11a of the above, work subject information 11 indicating required equipment operation for each work subject related to this main process
b, device operation information 11 indicating possible device operations for each device
c, the construction work information file 11 that stores the resource information 11d related to the work for each work subject, the work schedule 12 that stores the work subject of the executable work, and the work schedule 12 based on the notification of the start and end of the work A performed work management means 1a for managing the work subject to be carried out,
Safety standards 5a that the plant should follow and this safety standard 5
A safety standard information file 5 that stores a system state 5b that satisfies a, and a target system state determining unit 1b that refers to the safety standard information file 5 and determines the system state that should be maintained at the present time.
And the work that can be performed based on the information in the construction work information file 11, the information in the operation history information file 21 obtained by the device monitoring means 2, and the system state to be maintained determined by the target system state determination means 1b. Work evaluation means 1c for evaluating is provided.

The main process information 11a is the one in which a work subject or work name is given to a work to be performed or a group of works, and a rule of execution sequence and a critical path are described.

The work subject name information 11b is a set of a device name and a device operation for giving a unique name (hereinafter, referred to as a work subject name) in the regular inspection work to be performed and creating a device state which is a premise of the work. Are related.

In the device operation information 11c, possible operations are described for each device. The operations include an operation end operation indicating an automatic / manual operation for changing the device state and an operation of a device operation source such as a power source or an air source. There is a motion source operation shown.

The resource information 11d includes plant equipment such as cranes for performing work, work space, work staff, ability required for work staff, total time required for work, type of supervisor, and the like. Includes those that have a limited total amount or selection range in the inspection.

In the work monitoring means 1 having the above-mentioned structure, the work execution management means 1a corresponds to the work subject registered in the work schedule 12 as the work scheduled to be executed based on the notification of the start of the work. It is assumed that the work subject is “in progress”. Also, based on the notification of the end of this work, the work subject in progress is "execution completed",
Exclude from work schedule 12. A flow chart of this processing is shown in FIG.

The target system state judging means 1b reads out the safety standard 5a and the system state 5b satisfying the safety standard 5a from the safety standard information file 5. System status 5 that meets safety standards
b includes a lineup of equipment that constitutes a cooling system necessary for removing decay heat of a nuclear reactor, insertion and maintenance of control rods that suppress reactor reactivity, and the like. The equipment lineup includes maintaining the cooling system main valve open, closing the water and air vent valves, driving the pump, maintaining or recovering the functions of the instrumentation system that monitors these operations, and operating and controlling power supplies.
Means supply of air source. Further, in order to maintain the insertion of the control rod, it is necessary to isolate the hydraulic drive unit and to limit the operation mode of the control rod drive water system. In particular, in the lineup, when the system is configured by a redundant system, there are several possibilities for selection. Therefore, the selection range of the device states that configure the system is determined in consideration of the capacity of the system.

The work title is registered in the work schedule 12 by the work evaluation means 1b. As shown in the flow chart of FIG. 5, the work evaluation means 1b sequentially checks the work subject to be carried out in advance from the main process information 11a in the construction work information file 11 (step 100), and the work schedule is still in it. A work title not registered in 12 is selected (step 101). Then, the device operation and the resource corresponding to the selected work subject are compared with the device operation and the resource corresponding to the work subject of "execution in progress" (step 102). The device operation and the resource corresponding to the work subject of "execution scheduled" registered in (step 103),
When the device operation and the resource do not conflict with each other, the selected work subject is registered in the work schedule 12 as "execution schedule" (step 104). On the other hand, if there is a contradiction with the scheduled work, in order to select one of the work subjects according to the user's judgment (step 105), each work subject and the corresponding device operation and resource are displayed on the display processing unit. Output to 4 (step 10)
6). Further, even when the work subject of “in progress” conflicts with the device operation or resource, the fact that the work cannot be registered as “scheduled”, the work subject and the corresponding device operation and resource are output to the display processing unit 4. And notify you.

In addition to the above work evaluation processing, the work evaluation means 1b calculates the margin time of the work that can be registered in the work schedule 12 based on the critical path described in the main process information 11a and uses it. Presentable to the person. A conventional method such as PERT can be applied to the calculation of the margin time.

Further, the work evaluation means 1b has a site where the corresponding equipment operation is recorded in the operation history information file 21 from the equipment monitoring means 2 for the work subject of "execution scheduled" registered in the work schedule 12. It is determined whether or not there is a contradiction with the device state of No. 2, and the corresponding device operation is output to the display processing unit 4 for a work subject that cannot be performed because it is inconsistent with the operation history information.

Furthermore, the work evaluation means 1b should maintain the equipment state by the corresponding equipment operation for the work subject of "scheduled execution" registered in the work schedule 12 as determined by the target system state determination means 1b. If it does not match, it is judged whether it matches with the grid condition.
Since the work may not satisfy the safety standard of the plant, the work subject and the corresponding device operation are output to the display processing unit 4.

As described above, in the above-mentioned configuration, it is possible to clearly indicate the work that cannot be executed due to the operation of the equipment, which is the premise of the work, or the competition of resources, and to monitor the work implementation status. Also, by using the information of the device monitoring means,
It is possible to confirm the preconditions of the work that cannot be confirmed only by the work management by monitoring the device operation that has not been completely restored due to human error or the like. Furthermore, it is possible to detect work that may not meet safety standards.

In the work monitoring means 1 of the present embodiment, the status of the equipment on the site is evaluated based on the operation history information file 21 in the equipment monitoring means 2 to judge the status of the work execution. If the process signal from the monitoring means 3 can be used, the equipment condition at the site may be evaluated by the process signal. For example, the open state of the valve can be evaluated by the fully open position signal (Digital I / O) of the valve or the flow rate signal (Analog I / O) of the connected pipe. this is,
This is a technology used in current plant condition monitoring.

FIG. 6 shows a second embodiment of the work monitoring means 1 of the plant monitoring apparatus of the present invention. The work subject name information 11b, equipment operation information 11c, and equipment state and equipment power corresponding to equipment operation. A construction work information file 11 that stores the equipment information 11e indicating the source, the equipment operation information 11c of the work to be performed based on the notification of the start of the work, and the equipment operation history for evaluating the desired equipment state from the corresponding equipment information 11e. The management unit 1d, the device status file 13 in which the device status should be set for each device by the device operation history management unit 1d, and the device status and device operation history management unit based on the operation history information file 21 from the device monitoring unit 2. The operation evaluation means 1e for evaluating the consistency with the device state evaluated in 1d.

In the inspection work of the periodical inspection, the equipment operation includes a direct operation end operation of the equipment and an indirect power source operation such as a power source and an air source. The device information 11e indicates, for each device to be operated, the device state corresponding to the operation end operation and the power source operation and the device power source.

In the work monitoring means 1 having the above structure, the equipment operation history management means 1d is
For the implicit device state in the normal operating state of the device,
The first device status is set in the device status file 13 by a process signal or the like. Since the work control is performed when the state of the manual valve or the power source changes from the normal operating state of the equipment, the initial state of the plant equipment can be set by this method.
If the work management is correct, the plant status changes according to the work performed, so the equipment status can always be estimated, but in order to guarantee this, it is necessary to maintain consistency between field equipment operation and work management.

The device operation history management means 1d searches the work subject name information 11b in the construction work information file 11 from the work subject name that should be "in progress" based on the notification of the start of the work, and the target device And select the device operation. Then, the device state corresponding to the device operation (that is, the operation end operation and the power source operation) of the device and the device power source are read from the device information 11e, and the device state in the device state file 13 is evaluated by evaluating the desired device state. To update. If there are conflicting device states for multiple device operations,
It can be specified by prioritizing the types of operations and the order of execution.

The operation evaluation means 1e relates to the equipment of the "work in progress" work, based on the operation history information file 21 from the equipment monitoring means 2 and the equipment operation history management means 1
The device status resulting from the evaluation in d is compared to detect a mismatch between the field status and the work management status. With respect to the device in which the mismatch occurs, the mismatched device state and the device power source of this device are output.

According to the work monitoring means 1 having the above-mentioned configuration, it is possible to detect the inconsistency between the operation of the on-site equipment due to the delay or the error of the operation of the on-site equipment for the operation and the equipment state in the work management, and perform the operation safely. The equipment condition can be recovered and maintained early. Further, since the execution status of the field device operation can be monitored so as to maintain the consistency between the field device operation and the work management, it is possible to always grasp the work related to the device state.

FIG. 7 shows a third embodiment of the work monitoring means 1 of the plant monitoring apparatus of the present invention. The plant equipment / structure information file 22 and the equipment isolation for evaluating the equipment status necessary for the work implementation. Method evaluation means 1f and device isolation method database 1 that stores the evaluated device isolation method
4 and the equipment isolation method from the equipment isolation method evaluation means 1f, the system status is evaluated based on the plant equipment / structure information file 22, and whether or not work can be performed is determined based on the plant equipment status from the equipment monitoring means 2. And a system influence evaluation means 1g.

The plant equipment / structure information file 22 is
It stores plant equipment information indicating possible operations and operation sources of each equipment and plant structure information logically indicating fluid and electrical connection relationships between the equipment.

In the work monitoring means 1 having the above-mentioned configuration, the equipment isolation method evaluation means 1f receives the inspection equipment input corresponding to the work title of the work to be performed, from the plant equipment / structure information file 22 to the plant of the related system. The equipment information and the plant structure information are read out, the equipment isolation method for isolating the fluid and electricity required for the inspection work of the inspection equipment is searched using this, and the confirmation of the user is received. The equipment isolation method evaluation unit 1f checks the equipment isolation method set by the user from the inspection equipment by using the plant equipment information and plant structure information in the plant equipment / structure information file 22. . Here, the device isolation method for isolating fluid and electricity corresponds to specifying the state of the device that becomes the boundary of the range (for example, valve closing).

The device isolation method evaluation means 1f registers the evaluated and determined device isolation method in the device isolation method database 14 as a device isolation method corresponding to the work subject, if necessary, and reuses it.

The system influence evaluation means 1g is determined by the equipment isolation method evaluation means 1f for the inspection equipment input corresponding to the work title, or the equipment isolation method database 1
By inputting the fluid and electricity isolation method read out from No. 4 and comparing it with the plant equipment state based on the operation history information file 21 from the equipment monitoring means 2, it is confirmed whether there is no contradiction between them and work can be performed. The evaluation is performed, and the availability of the work and the device isolation method for the work are output to the display processing unit 4.

Further, the system influence evaluating means 1g reads out the plant device information and the plant structure information of the related system from the plant device / structure information file 22, evaluates the fluid and electrical connection lineup of the related system, The influence on the system is output to the display processing unit 4.

According to the work monitoring means 1 having the above-mentioned structure, it is possible to detect the mismatch between the method of isolating the equipment necessary for the work and the state of the equipment on the site, judge the work execution, and evaluate the influence on the system. By referring to this, it is possible to recover and maintain the equipment state for performing work safely at an early stage. Further, by linking the device isolation method evaluation unit 1f and the system influence evaluation unit 1g via the device isolation method database 14, it is possible to connect the offline work plan and the online work monitoring.

FIG. 8 shows a fourth embodiment of the work monitoring means 1 of the plant monitoring apparatus of the present invention, which relates to a work start / end confirmation or work start / end signal generation mechanism necessary for work management. . Work monitoring means 1 of this embodiment
Is a work record card 1h possessed by a field worker, and a work determination means 1i for reading the record information of the work record card 1h.
And the work history management means 1j that manages the information from the work determination means 1i as work history information and saves it in the work history information file 15, and evaluates the progress of the work based on the work history information managed by the work history management means 1j. Work progress evaluation means 1k.

In the above structure, the work recording card 1h
Is a portable work information recording medium, and is usually realized by recording a work code corresponding to a work title on an ID card for identifying a worker and permitting the worker to enter and leave the work place.

The work judging means 1i is installed at the work place or at the entrance / exit of the work place, and reads the work subject information from the work recording card 1h.

The work history management means 1j is the work determination means 1
From i, information including the installation location information of the work determining means 1i, the read work subject, and the read in / out time as a set is received as work history information and stored in the work history information file 15.

Here, there are generally a plurality of work subject names recorded in the work recording card 1h, and there are also generally a plurality of work determination means 1i.

The work progress evaluation unit 1k periodically receives work history information from the work history management unit 1j and determines whether the worker corresponding to the predetermined work subject has arrived at the predetermined work place. If a work common to both workers is derived from the work subject in charge of a worker and the work place where this worker goes in and out, the worker has arrived at or is heading to the work place for the work. Can be determined. If the cycle is sufficiently small with respect to the standard work time, it is possible to determine the case where the work has passed without working even at the work place. Moreover, at the worst, the start and end of the work can be determined with a delay in the time required from the entrance of the work place to the work place.

As described above, the work monitoring means having the above-described configuration determines the start and progress of the work in almost real time based on the behavior of the site worker entering and leaving the work place, and confirms the start and end of the work, or , Can directly generate work start and end signals.

In this structure, the work judging means 1i, the work history managing means 1j, and the work progress evaluating means 1k may be installed in different places and may asynchronously communicate with each other. Therefore, the equipment can be simplified by the optimal arrangement of the communication equipment.

When the work judging means 1i cannot be arranged at each work place, the work judging means 1i is arranged in n branches at a common entrance of a plurality of work places to judge the work place with the minimum number of arrangements. You can Further, by arranging the work place entrance and exit so as to correspond to the system, it is possible to appropriately divide the work place.

Next, the equipment monitoring means 2 in the plant monitoring apparatus shown in FIG. 1 will be described in detail.

FIG. 9 shows a first embodiment of the equipment monitoring means 2 of the plant monitoring apparatus of the present invention, which is a safety standard information file 5 for storing a safety standard 5a and a system state 5b satisfying the safety standard 5a, and a safety standard. A target system state determination unit 2a that determines the system state that should be maintained at the present time based on the reference information file 5, and the operation history information file 21 is updated based on the notification of device operation execution / cancellation, and this operation history information file 21. From the system state evaluation means 2b for evaluating whether the equipment state of the plant determined from the above satisfies the system state to be maintained, and the equipment operation related to the work in progress or scheduled to be performed obtained from the work monitoring means 1 Safety monitoring work selecting means 2c for selecting a work related to the standard 5a.

In the above-mentioned structure, the target system state judging means 2a reads the safety standard 5a and the system state 5b satisfying the safety standard 5a from the safety standard information file 5. The system state 5b that satisfies the safety standard is, as described above, a lineup of equipment that constitutes a cooling system required to remove decay heat of the reactor, insertion and maintenance of control rods that suppress reactor reactivity, etc. There is. The lineup is to maintain the cooling system main valve open, close the water and air vent valves, drive the pump,
Maintaining or recovering the function of the instrumentation system that monitors these operations,
It also means the supply of operating power, control power, and air source. Further, in order to maintain the insertion of the control rod, it is necessary to isolate the hydraulic drive unit and to limit the operation mode of the control rod drive water system. In particular, in the lineup, when the system is configured by a redundant system, there are several possibilities for selection, and therefore, the selection range of the device states that configure the system is obtained in consideration of the capacity of the system. The target system state determination means 2a is
It has the same processing function as the target system state determination means 1b shown in FIG.

The system state evaluation means 2b updates the operation history information file 21 based on the notification of the equipment operation execution and cancellation, and uses the plant equipment / structure information file 22 for storing the plant equipment information and the plant structure information,
Determine the implementation status of the operation. Further, the system state evaluation means 2b evaluates whether or not the selection range of the device states constituting the system obtained from the target system state determination means 2a matches the operation implementation status, and the evaluation result is sent to the display processing unit 4. Output. In particular, when the implementation status of the operation does not satisfy the safety standard, the corresponding safety standard 5a and the device operation are displayed.

The safety monitoring work selecting means 2c includes the safety standard 5a obtained from the target system state determining means 2a and a selection range of the equipment state related thereto, and the work being performed or scheduled to be performed obtained from the work monitoring means 1. Detect and display the work subject related to the safety standard by using the subject and the device operation related to it. Further, when the safety monitoring work selecting means 2c obtains from the system state evaluating means 2b a device operation that does not match the selection range of the device state, the corresponding work subject name is calculated from the device operation and displayed.

According to the equipment monitoring means 2 having the above-mentioned configuration, it is possible to confirm that the equipment operation related to the safety standard of the plant is carried out in compliance with the standard, and it is possible to monitor this in accordance with the work. If a device operation that violates the safety standards is performed, the situation can be grasped and the cause can be narrowed down at an early stage by promptly detecting this and presenting the work involved. It is easy to refer and respond to the person.

FIG. 10 shows a second embodiment of the equipment monitoring means 2 of the plant monitoring apparatus of the present invention. The plant equipment / structure information file 22 stores plant equipment information and plant structure information, and a safety standard. 5a, the process signal predicting means 2d for predicting the variation tendency and the range of the process signal, and the consistency between the process signal obtained from the process monitoring means 3 and the process signal predicted value obtained from the process signal predicting means 2a. And a device information quality evaluation unit 2f that evaluates the plant device information and the plant structure information used in the process signal evaluation unit 2e through dialogue with the user.

The process signal predicting means 2d reads, from the plant equipment / structure information file 22, the plant equipment information and the plant structure information of the system related to the monitoring of the safety standard 5a. Here, the system related to the monitoring of the safety standard at the time of the periodic inspection is a system connected to the measurement points of the water level, the flow rate, and the temperature of the reactor cooling water, a system connected to the flow rate measurement point of the control rod driving water, and the like. Process signal predicting means 2d
With respect to these measurement points, based on the plant equipment information and the plant structure information, the operation history information file 21
From the equipment state determined from the above, the tendency of fluctuation of the process signal and the range of values related to the safety standard 5a are predicted according to the quantitative or qualitative calculation model 2d1. In this calculation model 2d1, the connection relation between the point where the equipment is operated and the measurement point is given by the plant equipment information and the plant structure information, and the boundary condition with the outside of the system is stored in the standard value at the time of periodic inspection and the operation history information file 21. It is based on the actual value. In the case of a qualitative calculation model, fluctuation trends such as increase, decrease, and almost constant are judged, and in the case of a quantitative calculation model, a range of values including a model error is judged. The fluctuation tendency of the process signal and the range of values at the measurement point are set as the process signal predicted value.

The process signal evaluating means 2e evaluates the consistency between the process signal obtained from the process monitoring means 3 and the process signal predicted value obtained from the process signal predicting means 2d. The process signal is low-pass filtered to remove noise in the process monitoring means 3,
Since the fluctuation tendency and the most probable value of the value are obtained by the previous value comparison and the moving average processing in a constant cycle, the consistency can be easily determined. The process signal evaluation unit 2e sends a collation command to the process signal prediction unit 2d and the equipment information quality evaluation unit 2f for a mismatch between the process signal and the process signal predicted value, and sends a message to the user to recommend monitoring enhancement. Output.

The process signal predicting means 2d searches the plant equipment / structure information file 22 for the plant equipment information and the plant structure information used for the prediction based on the collating instruction from the process signal evaluating means 2e, and the process signal to be collated. The input device and the device information set used for the prediction are output to the device information quality evaluation unit 2f.

The device information quality evaluation means 2f outputs the input device of the process signal to be verified and the device list used for prediction to the user in a checklist format based on the verification command from the process signal evaluation means 2e. , Prompt to determine whether there is a problem with the data of the process signal or the device information. Data that is determined to be suspicious by the user's judgment is stored and output as reference data for device information quality.

According to the equipment monitoring means 2 having the above-mentioned configuration, it is possible to early detect a process signal which may have lost its function due to a failure of the process instrumentation system, maintenance, loss of operating power supply, or the like. Also, regarding the plant equipment information and the plant structure information used by the equipment monitoring means 2, since updating and checking accompanying equipment remodeling work was a problem because it depends on design information, the equipment information quality evaluation means 2f outputs: The validity of the updated plant equipment information and plant structure information can be evaluated.

The user determination in the device information quality evaluation means 2f does not have to be rigorous, and may be subjective data, or both may be determined as suspicious if the determination cannot be made. Further, the process signal predicting means 2d may have a plurality of evaluation models, and the evaluation models may be switched based on the judgment history of the device information quality evaluating means 2f.

By the way, the device monitoring means 2 according to the present invention.
Can obtain a sufficient effect by urgently monitoring the status of the field equipment, but in the current regular inspection work, the status of the equipment is collated with the tag directly attached to the field equipment and the stub collected after the operation. . This fulfills the functions of clearly indicating the operation at the site and confirming the completion of the operation, but generally the time required for collection is a bottleneck in real time.

The third embodiment of the equipment monitoring means 2 of the plant monitoring apparatus of the present invention shown in FIG. 11 is intended to eliminate the dead time required for the above tag collection.

The device monitoring means 2 of this embodiment is installed near a manual field device such as a valve, and a manual operation recording plate 2g capable of displaying the content or state of the operation of the device, and a manual operation record. A portable operation management unit 2h that writes and reads information to and from the plate 2g, an operation history management unit 2i that manages the operation history of each manual field device through communication with the portable operation management unit 2h, and a portable operation management unit 2h. An information transmission means 2j for transmitting information to and from the operation history management means 2i is provided.

In the above-mentioned structure, the manual operation recording plate 2g corresponds to a conventional tag permanently installed in the field, and the operation history storage means 2g1 for recording the operation and operation history corresponding to the field equipment and the contents of the performed operation. Or, the status display means 2g2 for displaying the status is integrally formed. The manual operation recording plate 2g is, for example, inserted into the portable operation management means 2h, read and written by the portable operation management means 2h, and does not require an internal power source itself.

The operation history storage means 2g1 outputs the identification code of the device and the set device state by the power supply from the outside, for example, the portable operation management means 2h, reads the new device state, and records the nonvolatile state. Hold information on media. As a power supply method, in the case of the contact type, power can be directly supplied from the electrode, and in the case of the non-contact type, power can be supplied by electromagnetic induction.

The state display means 2g2 is capable of displaying two or more images corresponding to the operating state of the field equipment due to its mechanical structure. For example, "open" and "closed" of the valve, "on" and "off" of the switch. This is because the two display images are divided into strips or grids and superimposed.
This can be easily realized by providing a display window or a mechanism for moving the display image in parallel by a divided pitch. By providing the moving mechanism with the lock mechanism, it is possible to stably hold either state. In addition, if you combine magnetic powder and recording means with a magnet,
It can record and retain any graphic image. Since many examples of application of these status display means to toys and the like are seen, detailed description thereof is omitted here.

The portable operation management means 2h is, for example, the insertion slot 2
The manual operation recording plate 2g is taken in from ho, and power is supplied to the manual operation recording plate 2g and writing and reading of information are performed. The portable operation management means 2h includes an operation target input means 2h1 for inputting a device operation target to be executed from the operation history management means 2i and a reading means 2h2 for reading stored information in the operation history storage means 2g1 from the manual operation recording plate 2g. And the operation display means 2h3 for displaying the equipment operation target input by the operation target input means 2h1 and displaying the information read by the reading means 2h2 for collation, and the signal for confirming the execution of the equipment operation by the site worker. The execution confirmation signal input means 2h4 and the state of the equipment operation confirmed by this execution confirmation signal input are written in the status display means 2g2 of the manual operation recording plate 2g, and the corresponding work and equipment operation information is stored in the operation history storage means 2g1. A writing means 2h5 for writing to and a device operation execution signal are transmitted to the operation history management means 2i by inputting an execution confirmation signal. Composed of the 施信 signal output unit 2H6.

Such a portable operation management means 2h can be realized by an external input / output mechanism of one handy terminal and a small display. The offline or online display information is displayed on the operation display means 2h3, and the reading means 2h2 reads the identification code of the device and the set operation information from the manual operation recording plate 2g, and the writing means 2
The additional information related to the target device operation and the operation such as the work title and period is written on the manual operation recording plate 2g by h5. If there is no problem with the equipment operation target displayed on the operation display means 2h3 of the portable operation management means 2h, after the site worker performs the equipment operation, the confirmation button provided on the portable operation management means 2h is pushed. By performing the confirmation operation, the implementation confirmation signal is input to the implementation confirmation signal input means 2h4, and the manual operation recording plate 2g is written by the writing means 2h5.
The device operation information is written into the device, and the execution signal of the device operation is output in synchronization with the completion of the writing.
Output by 6.

The portable operation management means 2h makes the following checks when operating the equipment and displays information on the operation display means 2h3 as necessary.

1) The identification names of the device to be operated and the device read from the manual operation recording plate 2g are compared, and if they are different, a warning is given to avoid an error in the operation target.

2) When the operation state of the device read from the manual operation recording plate 2g is already the operation target state, the additional information of the previously performed operation is confirmed, and the additional information of the current operation is the same. To avoid duplicated operations by determining that they are already completed. If different,
Add additional information for this operation.

3) When the operation state of the equipment read from the manual operation recording plate 2g is different from the operation target and additional information of some work is read, this is warned and an examination is urged to check whether it is consistent with the work.

4) There is work information as additional information of the operation of the device read from the manual operation recording plate 2g, and if the target operation this time is to cancel or temporarily cancel the work, this can be specified. Prompt for confirmation of operation details.

The operation history management means 2i is the information transmission means 2
The operation history information file 21 is received on the basis of the device operation execution signal received from the portable operation management means 2h by j.
To manage operation history information. In addition, since the equipment operation to be performed for the work is selected in the work monitoring means 1, the information transmission means 2j transmits the target operation content obtained from the work monitoring means 1 to the portable operation management means 2h. In the portable operation management means 2h, the transmitted target operation contents are input by the operation target input means 2h1 and presented to the site worker by the operation display means 2h3.

The information transmission means 2j is preferably an online communication network from the viewpoint of real-time performance, but the difficult part may be exchanged via an information recording medium such as an IC card. Even with this, the real-time property is dramatically improved compared to the tag.

According to the equipment monitoring means 2 having the above-mentioned configuration, the on-site worker can confirm the work and the operation content related to the manual on-site equipment and carry out the equipment operation. Since the operation contents are clearly displayed on the manual operation recording plate 2g that is hung on the manual field equipment or installed in the vicinity, the operation status of the equipment can be easily understood on the site, and as the device monitoring means 2 of the plant monitoring device, The implementation status of the operation can be determined almost in real time.

Further, since the manual operation recording plate 2g used in this example does not need to include an internal power source, maintenance work such as battery replacement is unnecessary, and the size can be reduced. Further, it is possible to support a plurality of devices by switching the stored information with the same manual operation recording plate. This is advantageous when the number of manually operated devices is large.

In the device monitoring means 2 of this structure, it is necessary to store the identification number corresponding to the device in the manual operation recording plate 2g installed on site. At that time, in addition to the method of installing the manual operation recording plate 2g in which the identification number is stored, the manual operation recording plate 2g can be used without making a mistake in the identification number.
The manual operation recording plate 2g by reading the identification number from the pipe connected to the field device
You may make it memorize | store in. For example, before construction and remodeling work, identification information was recorded around the pipes near each end of the plant piping equipment, and when the construction was completed, the identification information was associated with the identification name of the field equipment. After that, by inputting the identification information of the pipe near the device, the identification information of the device can be obtained.

FIG. 12 shows a fourth embodiment of the equipment monitoring means 2 of the plant monitoring apparatus of the present invention.
It is a modification of the third embodiment shown in FIG. The equipment monitoring means 2 of this embodiment is installed in the vicinity of a manual field equipment such as a valve, and is provided in a manual operation recording means 2k and a manual operation recording means 2k capable of displaying the content or state of the operation of the equipment. On the other hand, a portable operation management means 2l that writes and reads information wirelessly, an operation history management means 2i that manages the operation history of each manual field device through communication with the portable operation management means 2l, and an operation with the portable operation management means 2l. History management means 2i
And information transmission means 2j for transmitting information between

In the above structure, the manual operation recording means 2k
Is an operation history storage means 2k1 for recording work and operation history corresponding to the field equipment, a status display means 2k2 for performing status display corresponding to the performed operation, and a portable operation management means 2
When 1 is approached, it is composed of a control means 2k3 for controlling the operation history storage means 2k1 and the status display means 2k2 on the spot based on the radio signal from the portable operation management means 2l.

The operation history storage means 2k1 stores the operation subject associated with the operation history each time the operation is performed. The status display means 2k2 displays the status corresponding to the final operation read from the operation history storage means 2k1. For example, the open state of the valve is indicated by a red lamp and the closed state is indicated by a green lamp.

The portable operation management means 2l is the portable operation management means 2 in the device monitoring means 2 of the third embodiment shown in FIG.
Similar to h, an operation target input means 211 for inputting a device operation target to be performed from the operation history management means 2i, a reading means 21 for reading the stored information in the operation history storage means 2k1 from the manual operation recording means 2k, and an operation. Target input means 21
Display the device operation target entered by
Operation display means 2l for displaying the information read by
3 and an operation confirmation signal input means 2l4 for inputting a signal for confirming the operation of the equipment from the site worker, and a manual operation record of work and equipment operation information corresponding to the equipment operation confirmed by the execution confirmation signal input. The operation history storage means 2k1 of the means 2k has a writing means 2l5, and an execution signal output means 2l6 for transmitting an equipment operation execution signal to the operation history management means 2i by inputting an execution confirmation signal. It has a communication control means 2l7 for controlling the communication with the operation recording means 2k by a radio signal. That is, the difference from the portable operation management means 2h shown in FIG. 11 is that a wireless signal corresponding to the device to be operated is periodically transmitted by the communication control means 21.

The operation history managing means 2i and the information transmitting means 2j have the same operation as that of the embodiment shown in FIG.

Control means 2k3 of the manual operation recording means 2k
Periodically detects a radio signal from the portable operation management means 2l and controls the display state of the state display means 2k2. If the device to be operated, which means the detected wireless signal, matches the identification name of the device in the operation history storage means 2k1, change the display state of the state display means 2k3 to blinking, etc. Urge. Further, the control means 2k3 controls communication as the portable operation management means 2l approaches. The distance between the manual operation recording means 2k and the portable operation management means 2l can be determined by the response time in transmitting a wireless signal between them. If the vehicle is not approached for a certain period of time, or if it approaches once and then moves away, a method of attracting more attention, such as sounding an alarm, can be considered.

When a worker approaches to a distance at which a field device can be operated, a manual operation recording means 2k transmits a radio signal encoding a command for supporting the operation of the equipment and a confirmation display to the portable operation management means 2l. To do. This allows
In addition to the check items described in the device monitoring means 2 of the third embodiment, the portable operation management means 2l clearly shows the operation operation target 2l3 and the device operation execution target and the confirmation request. When the worker operates the device and performs confirmation operation of the operation confirmation on the portable operation management means 2l using the execution confirmation signal input means 2l4, the operation signal output means 2l6 causes the operation history management means 2i to operate the device. Send the implementation signal of
The communication control means 21 17 transmits to the manual operation recording means 2k a radio signal encoding a change command to a state corresponding to the operation of the state display means 2k2. The control means 2k3 of the manual operation recording means 2k is the operation history storage means 2k1.
The final operation is recorded in and the status corresponding to the final operation is displayed on the status display means 2k2.

According to the equipment monitoring means 2 having the above-mentioned configuration, when the on-site worker confirms the work and the operation content related to the manual on-site device and carries out the operation, the operation target is displayed by the status display as the worker approaches. It is possible to specify the equipment and target operation of, and to leave the operation history on the spot, and to judge the implementation status of the operation in real time. The operator can visually confirm the completion of the operation, and even if the operation is not confirmed, the warning display and the utterance are given, so that the erroneous operation and the forgetting of the operation can be avoided.

In the equipment monitoring means 2 of the present embodiment, the manual operation recording means 2k installed on site needs a wireless signal transmission / reception function and power supply for display. Therefore, it is possible to operate the battery for a long period of time by using the power intermittently in a known wireless telephone power saving device or the like.

Further, the manual operation recording means 2k group for each adjacent device are provided with a soundness management function, and periodic communication is performed between these manual operation recording means 2k to cause a failure due to a decrease in power source or the like. Alternatively, the failure information of the manual operation recording means 2k in which the failure prediction is detected is recorded in the other manual operation recording means 2k, and the manual operation recording means 2k is recorded by the other manual operation recording means 2k when the site worker is patrolling. By notifying the fault information, it is possible to support the detection and maintenance of the faulty device.

By the way, by comparing the change in the state of the on-site equipment obtained by the equipment monitoring means 2 of the third and fourth embodiments before and after the work, it is easy to grasp the change in the equipment state accompanying the work. become.

The fifth embodiment of the equipment monitoring means 2 of the plant monitoring apparatus of the present invention shown in FIG. 13 is made by paying attention to this point. The device monitoring means 2 of this embodiment is
Pre-construction equipment state storage means 2m for storing the state of equipment and system at the start of inspection work, equipment and system states stored in pre-construction equipment state storage means 2m, and equipment at the end of inspection construction work And a plant state matching evaluation means 2n for comparing system states.

In the above construction, the pre-construction equipment state storage means 2m refers to the operation history information file 21 according to the notification of the start of the inspection construction work obtained from the work monitoring means 1 and the work subject, and refers to the current time. Memorize the status of equipment and systems. The plant state consistency evaluation unit 2n uses the pre-construction equipment state storage unit 2m to store the state of the equipment and system before the inspection construction work according to the notification of the completion of the inspection construction work and the work title obtained from the work monitoring unit 1. Read
The difference from the state of the equipment and system after the inspection work which is determined from the operation history information file 21 is detected.

According to the equipment monitoring means 2 having the above-mentioned configuration, the equipment and system status affected by the work to be monitored can be clearly indicated, and the recovery status can be easily checked. As a result, it is possible to intensively confirm whether or not the restoration work is delayed or the succeeding work is considered for the device state that has not been restored, so that it is possible to efficiently advance the preliminary work for the succeeding work.

Next, the process monitoring means 3 in the plant monitoring apparatus shown in FIG. 1 will be described in detail.

FIG. 14 shows a first embodiment of the process monitoring means 3 of the plant monitoring apparatus according to the present invention. The safety standard information file 5 stores the safety standard 5c of the process to be satisfied by the plant and the plant. Process signal input means 3a for taking in the process signal of each input / output point, and indefinite process input / output selecting means 3b for selecting the input / output point of the process signal which cannot be detected based on the evaluation of the work monitoring means 1.
And a process substitute value evaluation means 3c for obtaining a process substitute value by using a process signal related to an undetectable input / output point, and a process signal input by the process signal input means 3a and a process substitute value evaluation means 3c. Process safety standard evaluation means 3 for evaluating the safety of the plant by comparing the obtained process alternative value with a process safety standard 5c such as an alarm limit value in the safety standard information file 5.
d.

In the above structure, the indefinite process input / output selection means 3b cannot be detected based on the evaluation of the work monitoring means 1 in the process signal of each input / output point taken from the plant by the process signal input means 3a. Select process signals at various input / output points.

Here, the evaluation of the work monitoring means 1 will be described. As already described in the configuration shown in FIG. 7, according to the work monitoring means 1 according to the present invention, the instrumentation equipment is isolated and the power source is isolated. In this regard, it is possible to evaluate the impact of each work on the process instrumentation. For example, in the work monitoring means 1 shown in FIG. 7, the plant equipment / structure information file 22
Based on the above, the lineup of fluid and electrical connection of the process instrumentation can be evaluated as in the general system, and can be recorded directly in the equipment isolation method database 14. Therefore, the work monitoring means 1 can evaluate the soundness of the process instrumentation. The indefinite process input / output selecting means 3b can select the input / output point of the process signal which cannot be detected by the work by using the result of this evaluation.

The process alternative value evaluation means 3c evaluates the alternative value of the process signal by using the related process signal with respect to the input / output point of the process signal determined by the indefinite process input / output selection means 3b to be undetectable. For example, instead of the flow rate signal of a certain system, the flow rate is determined based on the open state of the main valve of this system, or the operation of the pump is determined by the pressure of the system.

[0175] The process safety standard evaluation means 3d uses the process safety standard 5c recorded in the safety standard information file 5.
Is compared with the process safety standard and the resulting safety standard evaluation is output to the display processing unit 4 together with the process signal. At that time, the substitute value obtained from the process substitute value evaluation means 3c and the related process signal used for this evaluation are output to the input / output points determined by the indefinite process input / output selection means 3b to be undetectable. Further, the process safety standard evaluation means 3d takes in the work subject name that makes normal process instrumentation impossible from the work monitoring means 1 and outputs it to the display processing unit 4.

According to the process monitoring means 3 having the above configuration,
Even for process instrumentation that cannot be monitored due to inspection work, etc., it is possible to select an alternative process and continue monitoring. Therefore, the person who monitors the safety of the plant
Depending on the situation, it will be possible to reduce the effort to reconsider the combination of instrumentation of the monitored process and to understand what work is affecting the monitoring. Also, when the process instrumentation of the normal operation system and the process instrumentation dedicated to the periodic inspection are used together, the latter can be treated as an alternative instrumentation.

FIG. 15 shows a second embodiment of the process monitoring means 3 of the plant monitoring apparatus of the present invention, which is a safety standard information file 5 for storing a safety standard 5c of a process to be satisfied by the plant and a process signal. A process signal input means 3a for taking in, a safety standard monitoring means 3e for comparing the input process signal with a process safety standard 5c such as an alarm limit value, and issuing an alarm if the standard is not satisfied, work Operation guide means 3f is provided for presenting a recovery procedure for returning to a plant state that satisfies the safety standard 5c based on the equipment operation information of the work performed by the monitoring means 1.

The process input means 3a takes in a process signal from the plant equipment related to the safety standard 5a of the process. The safety standard monitoring means 3e takes in the process safety standard 5c recorded in the safety standard information file 5, compares the process signal with the process safety standard 5c, and issues an alarm when the standard is not satisfied. Some safety standards 5c vary depending on the amount of decay heat generated depending on the plant stop period, but if the timer from the generation of all control rod insertion signals is treated as a process signal, it can be regarded as a constraint for multiple process amounts. .

The operation guide means 3f outputs to the display processing section 4 the procedure of operating the equipment for the operator to maintain the plant condition which satisfies the safety standard. Generally, there are a plurality of sets of equipment operations for satisfying the constraint of the process amount, but the operation guide means 3f matches the equipment operation of the work to be performed based on the equipment operation information of the work to be performed obtained by the work monitoring means 1. Evaluate and present what you can select. For example, avoid opening isolation valves that are closed to perform work.

According to the process monitoring means having the above configuration, even when the safety standard 5c of the process is not satisfied due to insufficient examination of the work planning stage, equipment failure, etc., the recovery guide can be promptly presented. In addition, since it is matched with the equipment operation for the work to be performed, it is possible to avoid inadvertently affecting other work.

The monitoring information by the work monitoring means 1, the equipment monitoring means 2, and the process monitoring means 3 described above is shared by the monitoring department of the plant, the maintenance department, and the site, so that the monitoring function by human personnel can be sufficiently operated. it can. The current monitoring system during normal operation consists of monitoring by the central monitoring panel of the monitoring department and information exchange with the site and maintenance department by telephone, and is not suitable for realizing the function as a plant monitoring device during regular inspection.

Next, the monitoring information processing and the monitoring system which are effective as the plant monitoring device during regular inspection of the plant monitoring device of the present invention will be described.

FIG. 16 shows the first embodiment of the monitoring information processing and monitoring system of the plant monitoring apparatus of the present invention, in which the outputs of the work monitoring means 1, the equipment monitoring means 2 and the process monitoring means 3 are integrated. Monitoring information creating means 4a for creating the displayed information, display means and input means 7 for both normal operation / during regular inspection installed in the central supervisory control device 6 of the plant, and monitoring mode during normal operation and during periodic inspection Monitoring mode switching means 8 for switching between display means and input means 7, output display control means 4b for outputting and displaying display information on the display means in accordance with the monitoring mode, and communication for communicating between a supervisor and a site worker. Means 6 are provided.

In the above configuration, the monitoring information creating means 4a
Handles the respective outputs of the work monitoring means 1, the equipment monitoring means 2, and the process monitoring means 3, and creates integrated display information from the viewpoints of work processes, system states, safety standards, and the like.

The display means and input means 7 are installed in the central supervisory control device 6 of the plant, through which information collection and device operation for normal operation and for periodic inspection are performed.

The monitoring mode switching means 8 is installed in the vicinity of the display means and the input means 7 and is operated by operating the monitoring mode switching means 8 formed of a switch, a push button or the like, for normal operation or for periodic inspection. One of the monitoring modes for

The output display control means 4b outputs and displays the display information on the display means 4a according to the monitoring mode selected by the monitoring mode switching means 8. For example, it is important to monitor the work process at the time of regular inspection, and the safety standard condition becomes severe during normal operation.

The communication means 6 presents on-site equipment information such as the operation status of the on-site equipment in the picture-in-picture display mode on the display means 7, for example, in the display means and the input means 7 when collecting and operating information on the on-site equipment. The function is supplemented, and the monitoring information obtained by the central monitoring control device 6 is provided to the site worker.

According to the plant monitoring apparatus having the above-mentioned configuration, by considering the monitoring mode with respect to the central supervisory control apparatus used during normal operation, the plant monitoring apparatus functions as a display unit dedicated to the periodic inspection to provide information necessary for the periodic inspection. The plant monitoring work can be supported by strengthening the provision and smoothly performing the monitoring and the communication of information at the work site.

In the plant monitoring system of this embodiment,
Although the function is not changed in the monitoring mode in the input means, it is also possible to change the function in the monitoring mode in order to avoid an erroneous operation in each monitoring mode.

FIG. 17 shows a second embodiment relating to the monitoring information processing and the monitoring system of the plant monitoring apparatus of the present invention. This is for the maintenance department and the monitoring department involved in the work during the periodic inspection. Meetings are important, and it is effective to examine the monitoring information at the meeting place and examine the contents, but during the work period, the monitoring department, maintenance department, and field workers are often located in different places. It was made in consideration of.

The plant monitoring apparatus of this embodiment comprises monitoring information creating means 4a for creating display information in which outputs of the work monitoring means 1, the equipment monitoring means 2 and the process monitoring means 3 are integrated.
Display / input means 7 installed at the locations and sites of users in the monitoring department and maintenance department, display information shared by each user, and display information separately selected by each user in the display means 7. Output display control means 4b for displaying output,
Communication means 9 for communication between users in each department and field workers
Is provided.

In the above structure, the monitoring information creating means 4a
Handles the respective outputs of the work monitoring means 1, the equipment monitoring means 2, and the process monitoring means 3, and creates integrated display information from the viewpoints of work processes, system states, safety standards, and the like.

The display / input means 7 is installed at the location of the user of the monitoring department and the user of the maintenance department, and is also arranged at the site.

The output display control means 4b outputs and displays on the display means 7 display information separately selected by each user in addition to the display information shared by each user of the monitoring department and the maintenance department.

The communication means 9 collects on-site information by communicating with the location of each user and the on-site worker, supplements the function of the display means 7, and provides monitoring information to the on-site worker.

According to the plant monitoring apparatus of this embodiment, the plant monitoring work can be supported by smoothly transmitting information between the monitoring department living room, the maintenance department living room, and the site. In the power plant, the monitoring department is often in the central control room and the maintenance department is in a separate room for each person in charge. Therefore, common and separate display / input that can be operated by multiple users With the means, the maintenance department living room,
Each person in charge is provided with a display / input means that can be operated by one user, and on-site is equipped with a stationary display / input means that is used in common with the portable display / input means possessed by each worker. By doing so, it is possible to efficiently perform bidirectional information transmission according to the hierarchical monitoring system in the plant business.

Next, the monitoring information creating means 4a for creating display information integrating the outputs of the work monitoring means 1, the equipment monitoring means 2 and the process monitoring means 3 will be described in detail.

Here, it is defined that the equipment status signal obtained offline by the work monitoring means 1 and the equipment monitoring means 2 is obtained by work management. Process monitoring means 3
The instrument status signal obtained online by is defined as obtained by process monitoring. The reliability of the equipment status signal obtained by process monitoring is high during normal operation, but is not always high during regular inspection due to inspection work.
The information that is considered to be highly reliable at the time of the periodic inspection is the information directly viewed by the site worker or the site camera. This is obtained by bidirectional information transfer with the monitoring department using communication means.

FIG. 18 shows an embodiment relating to the monitoring information creating means 4a of the plant monitoring apparatus of the present invention. The monitoring information creating means 4a of this embodiment comprises an offline equipment state judging means 4a1 and an online equipment. State determination means 4a2
A field device state determination means 4a3, a system diagram information creation means 4a4, a display control means 4a5, and a device image selection means 4a6.

In the above-mentioned structure, the offline device state judging means 4a1 reads additional information such as the device state and related work from the outputs of the work monitoring means 1 and the device monitoring means 2.

The on-line equipment state judging means 4a2 sets the process quantity related to the safety standard from the output of the process monitoring means 3 as the equipment state.

The on-site equipment state judging means 4a3 makes the information confirmed on the spot via the communication means 9 correspond to the equipment on the spot.

The off-line equipment state determination means 4a1, the on-line equipment state determination means 4a2, and the on-site equipment state determination means 4a3 associate the equipment state and its information source with the identification name of the on-site equipment.

The systematic drawing information creating means 4a4 manages the image information corresponding to the systematic drawing of the device and the identification name of the device in association with each other, and selects the image information by the identification name.

The display control means 4a5 selects the identification name of the device of the system to be displayed, and selects and processes the image information obtained from the system drawing information creating means 4a4. The processing of the image information includes changing the size, display position, display color, display range, and the like. The display control means 4a5 includes an offline device state determination means 4a1, an online device state determination means 4a2,
Also, the image information is created based on the additional information from the field device state judging means 4a3.

The device image selection means 4a6 is operated by the user.
Alternatively, based on the outputs of the offline device state determination means 4a1, the online device state determination means 4a2, and the field device state determination means 4a3, the device of the system to be displayed is selected and the display control means 4a5 is controlled.

The monitoring information creating means 4a having the above-mentioned configuration uses the outputs from the work monitoring means 1, the equipment monitoring means 2 and the process monitoring means 3 described above as a plant monitoring device at the time of regular inspection, for example, the following information. The presentation can be realized.

(1) The device status signal confirmed by the dialogue with the site, the offline device status signal obtained by the work management, and the online device status signal obtained by the process monitoring are integrated, and any means The equipment status signal is displayed on the equipment symbol on the system screen of the plant so that it can be distinguished from the information obtained in. For example, in the case of the device status created by the field device status determination unit 4a3, the display control unit 4a5 displays the image information in which the display color or the like is changed according to the information source of communication with the site, so that each system device It is possible to clearly indicate by which means the device status is confirmed. As a result, the person in charge of monitoring can easily confirm the monitoring status of the device.

(2) The device status signal confirmed by the dialogue with the site, the offline device status signal obtained by the work management, and the online device status signal obtained by the process monitoring are set in a preset priority order. When selected, they are integrated and displayed on the device symbol on the system screen of the plant, and if there is a contradictory device status signal, the means that has acquired the contradictory device status signal is clearly indicated. For example, the display control means 4
a5 selects the device state of the information source to be displayed according to the priority, and if there is a device state different from this, adds it to the image information as additional information. Thus, for example, if the priority is displayed in the order of site confirmation-process monitoring-work management, the person in charge of monitoring can cover the equipment status at the time of inspection of the instrumentation system by site confirmation, and the delay of the work execution by the process signal. You can easily check the situation covered by. In addition, the information determined from the matching between the work monitoring unit 1, the device monitoring unit 2, and the process monitoring unit 3 can be similarly easily confirmed.

(3) On the equipment symbol of the system screen of the plant, the equipment state predicted from the equipment operation history management by the work monitoring means 1 and the equipment having a different equipment state obtained from the equipment monitoring means 2 are clearly indicated. The system including the equipment is specified by changing the display state to support confirmation of the progress status of the site work. For example, by comparing the device status predicted from the operation history management by the work monitoring means 1 with the equipment status obtained from the equipment monitoring means in the offline equipment status determination means 4a1, You can see the devices that do not match. The display control means 4a5 selects the identification name of the equipment of the system to be displayed including this equipment from the different identification names, and the whole equipment related to the system is selected for the image information obtained from the system drawing information creation means 4a4. Change the display state of and add work information. As a result, the system and work that are not ready for execution can be viewed in a corresponding manner, and the person in charge of monitoring can easily determine the timing for starting the inspection work by checking the progress status of the isolation work and the like. .

(4) Based on the information from the work monitoring means 1 by the instruction operation on the equipment symbol of the system screen of the plant or the input operation of the equipment identification name, the on-site monitoring device or the person in charge of the on-site work related to the equipment. Information communication with the person in charge, and as a result, when the state of the field equipment is determined,
Information that the device status signal has been confirmed by dialogue with the site is recorded and displayed for the device. That is, the device image selection means 4a is operated by an instruction operation on the device symbol on the screen.
The equipment identification name is identified by 6, and the related work subject and information of the person in charge of the operation can be known from the equipment operation history management by the work monitoring means 1. Based on this information, we will call the person in charge on the premises or contact the portable information device to check the condition of the field device. The on-site condition confirmed by this is recorded and displayed on the device by the on-site device condition determining means 4a3. Thus, if the monitoring state is clearly indicated by the dialogue with the site, even if the person in charge of monitoring changes due to the handover, the monitoring state of the device can be easily confirmed.

(5) The work management information related to the equipment is displayed based on the information from the work monitoring means 1 by the instruction operation on the equipment symbol on the system screen of the plant or the input operation of the equipment identification name, Information indicating that the offline device status obtained by the work management has been confirmed by the person in charge of monitoring is recorded and displayed for the device. That is,
By the device image selecting means 4a6, the identification name of the equipment is specified by an instruction operation on the equipment symbol on the screen, and related work management information can be presented to the person in charge of monitoring from the equipment operation history management by the work monitoring means 1. . If it is clearly indicated in the monitoring information that the person in charge of monitoring has confirmed this work management information, the monitoring status regarding the work management information can be easily grasped. As a result, even if the person in charge of monitoring is replaced by another person, the monitoring status of the device can be easily confirmed.

(6) On the plant process, the equipment related to the work to be executed after the completion of the preceding work is specified on the equipment symbol on the system screen of the plant based on the equipment operation information from the work monitoring means 1, and the work is performed. Along with the completion notice of the corresponding preceding work from the monitoring means 1, the display state of the device symbol is changed to clearly indicate that the succeeding work can be carried out and support the monitoring of the device state accompanying the work progress. To do. That is, the off-line equipment state determination means 4a1 detects the identification name of the equipment associated with the completion notice of the preceding work by the work monitoring means 1, and the display control means 4a5 changes the display color to display the image information. As a result, it is possible for the person in charge of monitoring to easily confirm the work information whose change is difficult to grasp from the offline information.

(7) Based on the equipment operation information from the work monitoring means 1, the equipment symbol on the system screen of the plant for the equipment involved in the work for temporarily changing the equipment state for the isolation operation required for the work implementation The work name and work information are presented by an instruction operation to the device symbol, which is specified above, to support the monitoring of the device status accompanying the work progress. Since the temporary change of the equipment status is treated as work management information, the work monitoring means 1 is used in the offline equipment status judging means 4a1.
Then, the work name and work information and the identification name of the device are detected, and the display control means 4a5 changes the display color and the like to display the image information. This makes it easy for the person in charge of monitoring to easily confirm the work information whose change is difficult to grasp from the offline information.

(8) Based on the equipment operation information from the work monitoring means 1, the equipment symbol on the system screen of the plant, which is related to the work for temporarily changing the equipment state for the quarantine operation necessary for performing the work By clearly indicating the above, the display state of the corresponding device symbol is changed in response to the status return notification of the corresponding device from the work monitoring means 1 to clearly indicate that the work has been completed and to display the device state associated with the work progress. Support surveillance. Since the restoration of the temporary change of the device status is also treated as the work management information, the work monitoring means 1 detects the corresponding work name and work information, and the device identification name in the offline device status determination means 4a1. The display control means 4a5 changes the display color and the like to display the image information. This makes it easy for the person in charge of monitoring to easily confirm the work information whose change is difficult to grasp from the offline information.

(9) An inspection from the work monitoring means 1 is provided with a storage means for memorizing the name of the person in charge of on-site attendance monitoring and the schedule for performing the work, and a search means for mutually retrieving the work attended by the person in charge. Based on the equipment information, the name of the person in charge is clearly displayed on the equipment symbol on the system screen of the plant, and by inputting the person in charge or the related work name, the equipment status is displayed and the information communication with the person in charge by drawing information of the related system And support on-site equipment monitoring. That is, the device image selection means 4a6
By this, the identification name of the device is specified by the instruction operation on the device symbol on the system screen, and the work management information such as the name of the person in charge or the related work is sent to the person in charge of monitoring from the device operation history management by the work monitoring means 1. Can be presented. By selecting and instructing this, as in the above (4), it is possible to support the on-site equipment monitoring by making a local call to the person in charge of the work and a contact to the portable information equipment based on this information.

(10) When the information exchange between the monitoring department and the maintenance department or the monitoring department and the site worker is being carried out by communication, the corresponding device of the system screen of the plant related to this maintenance department or the site. It is displayed on the symbol that the information exchange is being performed or is completed, the history of the information exchange is recorded for the corresponding device, and the history of the information exchange is displayed by the instruction operation to the corresponding device symbol. The field device state determination means 4a3 detects the information exchange performed via the communication means 9, and the display control means 4a5 changes the display color and the like to display the information exchange history on the image information. This makes it possible to easily confirm the status of information confirmation by communication that is difficult for a third party to confirm.

(11) When the user determines that there is a problem in the system state influence evaluation by the work monitoring means 1 and the equipment monitoring means 2, the user operates the instruction on the equipment symbol on the system screen of the plant to relate the equipment. The plant device information and the plant structure information are displayed, the information that the user has requested the study of the plant information is recorded for the relevant device, and the plant information study material is created. To evaluate the system state impact of the online equipment state determination means 4a1,
Since the identification name of the related equipment is added, the equipment image selecting means 4a6 is made to correspond to the identification name of the equipment for which the user has requested the examination of the plant information, and the equipment monitoring means 2 is made to correspond to the plant information. Record review information. For example,
The equipment information quality evaluation means 2f in the equipment monitoring means 2 shown in FIG. 10 manages and outputs this information. As a result, maintenance can be easily performed even when it is necessary to improve the plant device information and the plant structure information as the modification work progresses.

As described above, in the plant monitoring apparatus of the present invention, the monitoring information creating means 4a monitors the outputs of the work monitoring means 1, the equipment monitoring means 2 and the process monitoring means 3 of each embodiment by the system screen. The information can be integrated and displayed for easy judgment and operation.

Next, an effective method of creating plant equipment information and plant structure information for use in the plant monitoring apparatus of the present invention, and a usage example will be described.

FIG. 19 shows a method of creating system operation logic data in plant equipment information and plant structure information. As shown in this figure, in the plant equipment information and the plant structure information, first, the connection information of the equipment that constitutes the operating system is extracted from the design drawing information related to the system configuration of the plant. The connection information is obtained by tracing the identification name of the adjacent device. For example, the boundary of the system or one device on the system forming a loop is traced as a starting point.
Assuming that the valve A is the starting point in FIG. 19, this valve A
Is connected to valves B and I. When the connections of the valve B and the valve I are traced, the valve K is reached and the parallel connection relationship can be determined. Here, the state of each device is used as a logical function, the devices connected in series are converted into a logical product, and the devices connected in parallel are converted into a logical function. The serial relationship and the parallel relationship generally have a nested structure, and a logical function corresponding to this structure can be created. As a state of each device, a logical function for realizing the flow of the system, for example, a valve open state and a pump operating state are given. At the boundary of system drain, etc., the closed state of the valve is added as the target state. In this way, the operation logic corresponding to the target state of the system can be created.

In the case of retrieving the isolation range for equipment inspection, the same logic is required starting from the inspection equipment.
For the water drainage path, a logical product is obtained as a logical product of the valve open state in series from the connection relation to the system drain and the equipment state in which the valve of the other path connected to this is closed. When there are a plurality of isolation candidates, a logical function for equipment inspection can be given as the logical sum of the logical functions of the isolation candidates.

When the system operation condition and the equipment inspection condition are obtained as a logical function as described above, there are the following advantages. (A) The logical function is a binary decision tree.
When expressed in the form of (ram), due to the irreducible and ordered processing of a binary decision tree, different apparent logics are the only expressions if the contents are the same. As shown in FIG. 20, the binary decision tree is a binary tree structure representing the logic to be evaluated when the logic constituting the logic function is true or false. This improves the reliability and maintainability of the logical data. (B) It is possible to process logical decisions regarding the functions of the system in a unified expression form. Management of logical data becomes easy. (C) It is possible to accurately and easily reflect a change in equipment on the system as a change in logic.

FIG. 21 shows a method of judging the possibility of performing work based on the logic corresponding to the target state of the system created by the above system logic creating method. The equipment state logic necessary for performing each work is created, the equipment state logics related to a plurality of work are combined, and the equipment states necessary for performing a plurality of work and the work that can be performed simultaneously are evaluated. At the same time, the target state of the device to be realized can be used as a logical product to evaluate its authenticity. For example, (AND (A open)) and (AND
(A closed)) is logically false and the work is determined to be impossible due to interference. (OR (Open A) (B
The logical product of (open)) and (AND (A closed) is (AND (B
It can be determined that the work can be performed if (open) (A closed) is established.

Similarly, based on the logic corresponding to the target state of the system created by the system logic creating method, the target device state logic associated with the remodeling work is created and replaced by comparison with the device state logic before the work. It is easy to evaluate the status of the equipment being installed and the equipment status of the entire new system. Since the logical structures can be processed in a unified manner, the work satisfaction condition can be easily determined even if the condition seems complicated. Work condition determination by system logic can greatly improve productivity and maintainability as compared with rules and graph processing.

[0227]

As described above, according to the present invention, by monitoring each information so that the outputs of the work monitoring, the equipment monitoring and the process monitoring are matched, is it possible to maintain the safety standard that the plant should meet? Can be evaluated. Also,
Since the information of each monitoring means can detect, diagnose, and correct the lack, error, limit deviation, etc. of the information of other monitoring means, process instrumentation, equipment,
Even when a part of the function of the safety protection equipment is lost, the safety of the plant can be maintained. In addition, it is possible to implement monitoring that is consistent with the current inspection construction system, which is mainly based on humans. Since the plant monitoring device of the present invention can perform sufficient monitoring even if the density of regular inspection work increases, the regular inspection work can be shortened while ensuring safety.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a plant monitoring apparatus of the present invention.

FIG. 2 is a diagram comparing and comparing characteristics of monitoring functions of the plant monitoring apparatus of the present invention and each monitoring means alone.

FIG. 3 is a block diagram showing a first embodiment according to the work monitoring means 1 of the plant monitoring apparatus of the present invention.

FIG. 4 is a flowchart showing a processing operation of a work execution management means 1a in the work monitoring means shown in FIG.

5 is a flowchart showing the processing operation of the work evaluation means 1b in the work monitoring means shown in FIG.

FIG. 6 is a block diagram showing a second embodiment of the work monitoring means 1 of the plant monitoring apparatus of the present invention.

FIG. 7 is a block diagram showing a third embodiment of the work monitoring means 1 of the plant monitoring device of the present invention.

FIG. 8 is a block diagram showing a fourth embodiment of the work monitoring means 1 of the plant monitoring device of the present invention.

FIG. 9 is a block diagram showing a first embodiment according to the equipment monitoring means 2 of the plant monitoring apparatus of the present invention.

FIG. 10 is a device monitoring means 2 of the plant monitoring device of the present invention.
It is a block diagram showing a 2nd example concerning.

FIG. 11 is a device monitoring means 2 of the plant monitoring device of the present invention.
It is a block diagram which shows the 3rd Example concerning this.

FIG. 12 is a device monitoring means 2 of the plant monitoring device of the present invention.
It is a block diagram showing a 4th example concerning.

FIG. 13 is a device monitoring means 2 of the plant monitoring device of the present invention.
It is a block diagram which shows 5th Example concerning.

FIG. 14 is a block diagram showing a first embodiment according to the process monitoring means 3 of the plant monitoring apparatus of the present invention.

FIG. 15 is a block diagram showing a second embodiment according to the process monitoring means 3 of the plant monitoring apparatus of the present invention.

FIG. 16 is a block diagram showing a first embodiment relating to the monitoring information processing and the monitoring system of the plant monitoring apparatus of the present invention.

FIG. 17 is a block diagram showing a second embodiment relating to the monitoring information processing and the monitoring system of the plant monitoring apparatus of the present invention.

FIG. 18 is a block diagram showing an embodiment of the monitoring information creating means 4a of the plant monitoring apparatus of the present invention.

FIG. 19 is a diagram showing a method of creating system operation logic data.

FIG. 20 is a diagram showing a structure of a binary decision tree.

FIG. 21 is a diagram showing a method of using the system operation logic.

[Explanation of symbols]

1 --- work monitoring means, 1a --- implemented work management means,
1b ... Target system state determination means, 1c ... Work evaluation means, 1d ... Equipment operation history management means, 1e ... Operation evaluation means, 1f ... Equipment isolation method evaluation means, 1g ...
…… System impact assessment means, 1h ………… Work record card, 1
i ......... work determination means, 1j ......... work history management means,
1k ......... work progress evaluation means, 2 ......... device monitoring means,
2a ... Target system status determination means, 2b ... System status evaluation means, 2c ... Safety monitoring work selection means, 2d.
... process signal predicting means, 2e ......... process signal evaluating means, 2f ... ... equipment information quality evaluating means, 2g ... ... manual operation recording plate, 2h ... ... portable operation managing means, 2
i ......... operation history management means, 2j ......... information transmission means,
2k ......... manual operation recording means, 2l ......... portable operation management means, 2m ...... pre-construction equipment state storage means, 2n ...
Plant condition matching evaluation means, 3 ... Process monitoring means, 3a ... Process signal input means, 3b ... Indefinite process input / output selection means, 3c ... Process alternative value,
3d ... Process safety standard evaluation means, 3e ... Safety standard monitoring means, 3f ... Operation guide means, 4 ... Display processing section, 4a ... Monitoring information creation means, 4b ... Output display Control means, 5 ......... Safety standard information file, 7 ...
... Display / input means, 8 ... Monitoring mode switching means, 9
……… Communication means, 11 ………… Construction work information file, 1
2 ... Work schedule, 14 ... Device isolation method database, 15 ... Work history information file, 21 ...
…… Operation history information file, 22 ………… Plant equipment ・
Structure information file,

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G21D 3/02 G21C 17/00 X (72) Inventor Hidehiro Fukui 8 Shinsugita-cho, Isogo-ku, Yokohama, Kanagawa Address Incorporated company Toshiba Yokohama Works (72) Inventor Yoji Takizawa 1 Komukai Toshiba-cho, Kouki-ku, Kawasaki-shi, Kanagawa Incorporated Toshiba Research & Development Center

Claims (45)

[Claims] 1. A work monitoring means for managing the scheduled execution of construction work related to the periodic inspection and maintenance of a nuclear power plant and monitoring the status of the work, and inputting monitoring information from this work monitoring means to carry out operation of plant equipment. A device monitoring means for monitoring the equipment status based on the above, and outputting monitoring information to the work monitoring means, and a process input from the plant by inputting each monitoring information from the equipment monitoring means and the work monitoring means And a process monitoring means for monitoring the plant state based on a signal and outputting monitoring information to the work monitoring means and the equipment monitoring means, and at least one of the work monitoring means, the equipment monitoring means and the process monitoring means. The monitoring means of the above must meet the consistency evaluation means for evaluating the consistency with the monitoring information from the other monitoring means, and the Plant monitoring apparatus characterized by having a safety evaluation means for evaluating the safety of the plant based on safety standards. 2. The work monitoring means stores information on main processes of construction work related to periodic inspection and maintenance, and information on implementation requirements including equipment operations necessary for execution of each work related to the main process. A construction work information file, and a work evaluation means for extracting a work to be carried out based on the construction work information file and the monitoring information from the device monitoring means or the process monitoring means, and evaluating whether or not the work can be carried out, The work evaluated by the work evaluation means is managed as a planned work, and the work is managed as a work in progress based on the notification of the start and end of the work in the work. The plant monitoring device according to claim 1, wherein 3. The work evaluation means extracts a work to be carried out in advance based on the main process information, and the work is a work in progress and a work to be carried out which is managed by the work management means. Whether or not the work can be performed is evaluated based on whether or not there is a contradiction regarding the implementation requirements, and whether or not the work can be performed based on the equipment state of the plant obtained from the monitoring information from the equipment monitoring means or the process monitoring means. 3. The plant monitoring apparatus according to claim 2, wherein the plant monitoring device is evaluated, and an evaluation result and a reason when it is evaluated that the operation cannot be performed are output. 4. The work monitoring means comprises means for calculating a margin time of an executable work managed by the executed work management means based on a critical path described in the main process information. The plant monitoring device according to claim 2 or 3, characterized in that. 5. A safety standard information file in which the work monitoring means stores a system state satisfying a safety standard, and a system component device for obtaining a system state satisfying the safety standard based on the safety standard information file. A target system state determination means for obtaining a state range, and the work evaluation means is safe for the work based on the device state range of the corresponding system component equipment from the target system state determination means in the process of evaluating the work that can be performed. The plant monitoring device according to claim 2, wherein whether or not the standard is satisfied is evaluated. 6. The work monitoring means stores the information about the device operation required for each work and the device status information corresponding to the device operation for each device, and a notification of the execution of the work, Construction work information equipment operation history management means for evaluating the equipment operation of the work based on the equipment operation file and managing the history of the equipment status of the plant associated with the work, and equipment status obtained by the equipment operation history management means The plant monitoring apparatus according to claim 1, further comprising: an operation evaluation unit that evaluates the consistency with the device state obtained from the device monitoring unit and outputs the evaluation result. 7. A plant device / structure information file in which the work monitoring means stores plant device information indicating a possible operation and operation source of each device of the plant and plant structure information indicating a connection relationship between the devices, Based on this plant equipment / structure information file, equipment isolation method evaluation means for obtaining a method for isolating the equipment based on inspection equipment information of the work to be performed, and work for the work to be performed by the equipment isolation method evaluation means. Based on the equipment isolation method, the equipment status obtained from the equipment monitoring means, and the plant equipment / structure information file, it is evaluated whether or not the work is feasible, and the influence of the work on the system is evaluated. The plant monitoring apparatus according to claim 1, further comprising an evaluation unit. 8. The work monitoring means stores the equipment isolation method obtained by the equipment isolation method evaluation means for each inspection equipment, and identifies the equipment isolation method corresponding to the read request from the equipment isolation method evaluation means. 8. The plant monitoring apparatus according to claim 7, further comprising a database for a device isolation method for outputting. 9. The work monitoring means is installed in association with a work place and a work recording means that is owned by a site worker and records owner information and a work type to be performed, and is input by a site worker. A work determination means for reading the record information of the work recording means; a work history management means for managing history information of work performed by the site worker based on the information read by the work determination means; 2. The plant monitoring apparatus according to claim 1, further comprising work progress evaluation means for evaluating the progress status of the work based on the work history information managed by the work history management means. 10. A safety standard information file in which the device monitoring means stores a system state that satisfies the safety standard, and a system component device for obtaining a system state that satisfies the safety standard based on the safety standard information file. The safety of the plant is evaluated by the target system state determination means for obtaining the state range and whether or not the equipment state based on the operation of the equipment matches the corresponding equipment state range obtained by the target system state determination means. The plant monitoring device according to claim 1, further comprising a system condition evaluation unit. 11. The equipment monitoring means corresponds to the work being performed or scheduled to be carried out obtained from the work monitoring means, the equipment state brought by the equipment operation of the work and the target system state determining means. 11. The plant monitoring apparatus according to claim 10, further comprising safety monitoring work selecting means for selecting a work that may conflict with the safety standard based on an equipment condition range. 12. A plant device / structure information file in which the device monitoring means stores plant device information indicating a possible operation and operation source of each device of the plant and plant structure information indicating a connection relationship between the devices, And a process signal predicting means for predicting a change tendency and a range of a process signal subject to a safety standard, based on a device state determined from a device operation history based on implementation / cancellation of a device operation and the plant device / structure information file. A process signal evaluation unit that evaluates the consistency between a process signal obtained from the process monitoring unit and a process signal prediction value obtained from the process signal prediction unit; and when the evaluation result by the process signal evaluation unit is inconsistent, The plant equipment information and plant structure information used for prediction of the process signal Plant monitoring apparatus according to claim 1, characterized in that a device information quality evaluation means for evaluating the interaction with the user validity. 13. The equipment monitoring means is a manual operation recording means installed in the vicinity corresponding to a manual field equipment to record an operation history of the equipment, and a work to be performed which is provided from the work monitoring means. A portable operation management means for writing the implemented equipment operation information in the manual operation recording means according to the equipment operation target and outputting an equipment operation execution signal for notifying the implementation of the equipment operation, and equipment for the work to be performed sent from the work monitoring means. 7. An operation history management means for transmitting an operation target to the portable operation management means, and managing an operation history of each manual field device by means of a device operation execution signal sent from the portable operation management means. 1. The plant monitoring device according to 1. 14. The manual operation recording means comprises operation history storage means for storing a history of work and equipment operation on the corresponding equipment, and status display means for displaying an implementation operation status of the equipment. An operation target input unit for inputting a device operation target in the work to be performed from the work monitoring unit; and a reading unit for reading stored information in the operation history storage unit from the manual operation recording unit, Operation display means for displaying the equipment operation target input by the operation target input means and displaying the information read by the reading means for collation, and execution confirmation for inputting an equipment operation execution confirmation signal according to the equipment operation target The signal input means and the operation state of the equipment confirmed by the execution confirmation signal input are written on the state display means of the manual operation recording means, and Writing means for writing device operation information to the operation history storage means, and execution signal output means for transmitting an equipment operation execution signal to the operation history management means by inputting the execution confirmation signal. The plant monitoring device according to claim 13. 15. The manual operation recording means stores an operation history storage means for recording a history of work and equipment operation related to the corresponding equipment, a status display means for displaying an implementation operation status of the equipment, and the operation history. Control means for controlling the operation history storage means and the status display means by communicating with a management means by a radio signal, and the portable operation management means is a device in a work to be performed from the work monitoring means. Operation target input means for inputting an operation target, communication control means for controlling communication with the manual operation recording means by a wireless signal, and storage in the operation history storage means from the manual operation recording means via the communication control means A reading unit for reading information, a device operation target input by the operation target input unit, and the information read by the reading unit are displayed for collation. Operation display means, execution confirmation signal input means for inputting an execution confirmation signal of the equipment operation according to the equipment operation target, and equipment operation contents confirmed by the execution confirmation signal input, the communication control means and the manual operation Writing means for writing to the status display means via the control means of the recording means and corresponding equipment operation information in the manual operation history storage means, and an equipment operation execution signal by the execution confirmation signal input for the operation history. 14. The plant monitoring device according to claim 13, further comprising an execution signal output unit that transmits the execution signal to the management unit. 16. The portable operation management means periodically generates a wireless signal including device information by the communication control means,
The manual operation recording means detects the approach to the device based on the radio signal from the portable operation management means by the control means, and when the portable operation management means approaches the device operable distance, the device operation is performed. The plant monitoring device according to claim 15, wherein a wireless signal for prompting a confirmation operation of execution is output. 17. The manual operation recording means performs periodic communication with each other with a plurality of other manual operation recording means to detect occurrence of a failure in the other manual operation recording means, 14. The plant monitoring apparatus according to claim 13, wherein the detected fault information is notified to. 18. The pre-construction equipment state storage means for storing the state of the equipment and the system at the time of starting the work according to the inspection work start information obtained from the work monitoring means, the work monitoring means. According to the completion information of the inspection construction work obtained from the means, the state of the equipment and system stored in the pre-construction equipment state storage means is compared with the current state of the equipment and system, and the equipment and system before and after construction are compared. 2. The plant monitoring apparatus according to claim 1, further comprising a plant state matching evaluation unit that evaluates whether or not the states are the same. 19. The process monitoring means is a process safety standard information file for storing a safety standard of a process to be satisfied by a plant, a process signal input means for inputting a process signal from the plant, and the process signal input means for inputting the process signal. Among the process signals of each input / output point, the undetermined process input / output selection means for selecting the process signal of the input / output point which cannot be detected by the work and the undetectable input / output selected by this undefined process input / output selection means Process substitute value evaluation means for obtaining an alternative process value using an associated process signal for an output point, process values from the process signal input means and process substitute value evaluation means, and processes in the process safety standard information file Compared with the safety standards of Plant monitoring apparatus according to claim 1, characterized in that a process safety evaluation means for evaluating whether there is a value. 20. The indefinite process detection means selects a process signal of an undetectable input / output point based on an impact evaluation of the work in progress on the process instrumentation performed by the work monitoring means. 20. The plant monitoring device according to claim 19. 21. A process safety standard information file for storing a process safety standard to be satisfied by a plant, a process signal input unit for inputting a process signal from the plant, and a process signal input unit for inputting the process monitoring unit. The safety signal is compared with the safety standard of the process in the process safety standard information file, and if the standard is not satisfied, a safety standard monitoring unit that issues an alarm, and the safety standard monitoring unit generates an alarm, the safety standard is confirmed. 2. The plant monitoring apparatus according to claim 1, further comprising operation guide means for presenting an operation procedure for returning to a satisfying plant state. 22. The device operation information of the work in progress, which is obtained by the work monitoring device, in the operation procedure including a combination of device operations prepared in advance for each alarm for returning to normal. The selectable operation procedure is evaluated and presented based on.
1. The plant monitoring device according to 1. 23. Monitoring information creating means for creating display information based on information respectively output from the work monitoring means, the equipment monitoring means and the process monitoring means; and plant operation / monitoring installed in a central monitoring control room. Display means for displaying information for monitoring, input means for inputting commands / requests for plant operation / monitoring, communication means for communicating with the plant site, monitoring mode during normal operation and monitoring mode during regular inspection. Monitoring mode switching means for switching to selectable, and when the monitoring mode for periodic inspection is selected by this monitoring mode switching means, it is transmitted from the plant site through the display information from the monitoring information creating means and the communication means. 2. The plant monitoring apparatus according to claim 1, further comprising display control means for displaying the displayed information on the display means. 24. Monitoring information creating means for creating display information based on information respectively output from the work monitoring means, the equipment monitoring means, and the process monitoring means, and monitoring departments, maintenance departments, and plant sites. A plurality of display means and input means installed, and display control means for displaying the display information from the monitoring information creating means on the requested display means in response to a display request input via the input means, The plant monitoring device according to claim 1, further comprising: a communication unit that communicates among the monitoring department, the maintenance department, and the plant site and displays the received display information on the display unit. 25. The monitoring department is provided with a display / input means commonly used by a plurality of users in the room and a display / input means individually used in the room, and at least one individually used in the room in the maintenance department. A display / input means for operating a worker is installed, and a portable display / input means possessed by each worker and a stationary display / input means commonly used by each worker are installed at a plant site. 24. The plant monitoring device according to item 24. 26. The equipment state confirmed by dialogue from the plant site through the communication means by the monitoring information creating means and the display control means, and the work management by the work monitoring means and the equipment monitoring means. Either the off-line equipment state or the on-line equipment state obtained by the process monitoring means is displayed on the corresponding equipment symbol of the plant system diagram displayed on the display means so that the information source can be discriminated. 25. The plant monitoring device according to claim 23 or 24. 27. An equipment status obtained from a plant site via the communication means by the monitoring information creating means and the display control means, and an offline obtained by the work management means and the work management by the equipment monitoring means. Or the online device status obtained by the process monitoring means is selected in a preset priority order, and information is displayed on the corresponding equipment symbol of the plant system diagram displayed on the display means. The display is made so that the source can be discriminated.
The plant monitoring device according to 3 or 24. 28. When the monitoring information creating means and the display control means further cause inconsistent equipment states between the information sources, the inconsistent equipment states and the information sources are displayed on the plant system diagram. 28. The plant monitoring device according to claim 27. 29. By the monitoring information creating means and the display control means, a device having a different device state predicted from the operation history management of the work monitoring means and a device state obtained by the device monitoring means is displayed on the display means. 25. The plant monitoring apparatus according to claim 23 or 24, wherein the plant monitoring is displayed in a distinguishable manner on the displayed plant system diagram. 30. The monitoring information creating unit and the display control unit identify a system including a device in which the device state predicted from the operation history management of the work monitoring unit and the device state obtained by the device monitoring unit are different. 30. The plant monitoring device according to claim 29, wherein the plant monitoring device displays the data on the display device as much as possible. 31. The operation monitoring means manages the equipment selected by the monitoring information creating means and the display control means from the plant system diagram displayed on the display means via the input means. 25. The plant monitoring apparatus according to claim 23, wherein contact information of a site worker is extracted from the medium work information and displayed on the display means. 32. When the monitoring information creating means and the display control means confirm the equipment state of the equipment on the spot via the communication means, it is displayed on the display means that confirmation has been made on the spot. 32. The plant monitoring device according to claim 31, wherein the plant monitoring device displays the plant system diagram in a distinguishable manner. 33. The equipment selected by the monitoring information creation means and the display control means via the input means from the plant system diagram displayed on the display means is based on the work being performed by the work monitoring means. 25. The plant monitoring device according to claim 23, wherein the operation information of the device is taken out and displayed on the display means. 34. The display means based on a confirmation input operation via the input means for confirming that the monitor information creating means and the display control means have confirmed an off-line equipment state by work management of the equipment. 34. The plant monitoring device according to claim 33, wherein the plant monitoring device is displayed so as to be identifiable on the plant system diagram displayed in FIG. 35. The work to be carried out by the monitoring information creating means and the display control means by waiting for completion of preceding work along main steps of construction work related to regular inspection and maintenance,
Equipment related to this work is selected based on equipment operation information from the work monitoring means, and corresponding equipment in the plant system diagram displayed on the display means in response to the completion notification of the preceding work from the work monitoring means. 25. The plant monitoring apparatus according to claim 23, wherein the display is changed so that the symbol can be identified. 36. From the work monitoring means, the equipment related to the work for temporarily changing the equipment state for the quarantine operation necessary for performing the work by the monitoring information creating means and the display control means is used. 25. The plant monitoring apparatus according to claim 23 or 24, wherein the display means is identifiably displayed on the plant system diagram based on operation history information associated with management. 37. The equipment state of the equipment according to the selection operation of the equipment symbol of the plant system diagram identifiable displayed on the display means by the input means by the monitoring information creation means and the display control means. 37. The plant monitoring apparatus according to claim 36, wherein work information related to a change is displayed on the display means. 38. By the monitoring information creating means and the display control means, in response to the status return notification of the equipment from the work monitoring means, of the equipment of the plant system diagram identifiable displayed on the display means. 37. The plant monitoring device according to claim 36, wherein the display state is changed. 39. The monitoring information creating means comprises a storage means for storing information on a person in charge who performs on-site attendance monitoring at the time of performing the work, and from the storage means by the inspection device information accompanying the work execution from the work monitoring means. The person in charge who performs the on-site attendance monitoring is retrieved and displayed in association with the inspection device symbol on the plant system diagram displayed on the display unit via the display control unit.
The plant monitoring device according to 3 or 24. 40. The monitoring information creating means, when information exchange with a plant site or another department for any device on the plant system diagram displayed on the display means is carried out via the communication means. 25. The plant monitoring apparatus according to claim 23 or 24, wherein information indicating that the information exchange is being performed or is being completed is displayed on the device symbol on the plant system diagram via the display control means. 41. When the information is exchanged via the communication means, the monitoring information creating means detects the information exchange by communication, records and saves the information exchange history in device units, and is displayed on the display means. 41. The plant according to claim 40, wherein a history of information exchange of the equipment is displayed on the display means via the display control means by equipment selection from the plant system diagram via the input means. Monitoring equipment. 42. Monitor information creating means for creating display information based on information respectively output from the work monitoring means, the equipment monitoring means and the process monitoring means, and display information from the monitor information creating means. And a display unit for displaying the evaluation result about the influence on the system output from the system influence evaluation unit on the display unit, and the plant device information by the device selection operation from the user. 8. The plant monitoring device according to claim 7, wherein the plant device information and the plant structure information relating to the device are displayed on the display means from the plant device / structure information file in response to a request for examination of the plant structure information. 43. Monitor information creating means for creating display information based on information respectively output from the work monitoring means, the equipment monitoring means and the process monitoring means, and display information from the monitor information creating means is displayed. And a display means to do, the equipment information quality evaluation means, in response to a review request from the user, outputs the corresponding plant equipment information and plant structure information to the monitoring information creation means,
13. The plant monitoring apparatus according to claim 12, wherein the plant monitoring apparatus records and manages a request for examination by a user. 44. The plant device information and the plant structure information stored in the plant device / structure information file represent connection information of devices constituting an operating system of the plant,
43. An operating system logic represented by a logical function of a device state that realizes a flow of the system, in which a device connected in series is a logical product and a device connected in parallel is a logical sum, and the operating system logic is included. Or 43, the plant monitoring apparatus according to any one of. 45. The flow of the system in which the plant device information and the plant structure information are connection information of the devices configuring the operating system of the plant as a logical product of the devices connected in series and the logical sum of the devices connected in parallel. The operating system logic represented by a logical function of the device state to realize, the device isolation method evaluation means, based on the operating system logic of the plant device information and plant structure information, by the inspection device information of the work to be performed , The isolation range of the inspection device represented by a logic function of the device state is obtained, and the device state which is mutually established from the device state logic of this isolation range and the device state logic of the corresponding system of the plant device information and plant structure information. 8. The plant monitoring apparatus according to claim 7, wherein logic is obtained as a method of isolating an inspection device capable of performing the work.