JPH08287140A - Method and apparatus for creating operation plan - Google Patents

Abstract

(57) [Summary] [Purpose] To realize a device that automatically creates an operation plan that is in line with the actual situation by incorporating the actual performance information obtained when the operation was actually performed from the previously created operation plan. [Structure] User input / output means having a function of displaying and editing, plan making means for making and modifying a plan in response to a request from the user input / output means, plant information, recipe information, job information, etc. In the automatic plan creation device consisting of the information management means for managing each, the fixed operation plan created last time, the job name, the device name, the production amount when operating according to the above various information used at that time and the fixed operation plan , And a plan automatic correction means for creating a new operation plan by simultaneously incorporating performance information such as an event indicating the start and end times of production. In addition, a communication interface means is provided so that the actual performance information is taken online from the corresponding production plant to quickly create an accurate operation plan.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic operation plan creation using a computer, and more particularly to an improved operation plan creation method and apparatus for accurately creating an operation plan for a new operation request. is there.

[0002]

2. Description of the Related Art Conventionally, there has been a system for creating an operation plan for automatically and manually creating an operation plan using a computer. For example, the system described in Japanese Patent Application No. 3-55061 “General-purpose production planning system” or Japanese Patent Application No. 3-126148 “Scheduling system” filed by the applicant of the present application is a system for creating an operation plan of this kind. In addition to automatically creating a Gantt chart in order to create an optimal plan, these systems are equipped with manual correction means, and the user manually corrects the initial operation plan draft automatically created by the system and It enables the creation of good operating plans. An example will be described below.

FIG. 3 is a drawing for explaining the relationship between a plant, a production process, and a Gantt chart according to a conventional method of creating an operation plan. The Gantt chart shown below (Figs. 3, 5,
6 and 7), the structure of the production plant is, for example, the devices A, B, X1, X2, the device Y, and the device Z. As the production process, the devices A and B are the devices for delivering the raw materials A and B, The devices X1 and X2 are defined as a mixed reaction device, the device Y is defined as a cooling device, and the device Z is defined as a drying device, and the specifications thereof are stored in the storage means 16 (described later) as plant information. The manufacturing recipe (recipe) is specified for each product such as raw material, product (product), and processing time. As the production request, JOB name (JOB1, JOB2 in the figure), product name,
The production amount and delivery date are specified. The operation plan table is a Gantt chart showing the definite operation plan created by the conventional method. However, actual operation does not always follow the original operation plan. For example, it may be delayed from the original plan, may be executed ahead of schedule, or the order of operations and the equipment used may be changed. In this way, when the original plan and actual operating conditions are different, the conventional method does not continue by reflecting the operating results,
A part of the operation plan created last time is designated as a change prohibition time area so that a new production request is not pasted, and the operation is added.

[0004]

[Problems to be Solved by the Invention] When a new operation request is added to create an operation plan based on the operation plan previously created, create an operation plan that correctly reflects the results of previous operation. There was a problem that it was difficult. The present invention is intended to solve such a problem, and prior to creating a new operation plan, the previously created operation plan is given a job name and a product brand when actually operating. It is an object of the present invention to realize a method and a device for automatically creating an operation plan in accordance with actual conditions by incorporating and correcting actual information such as constraints and conditions and event data. It is also an object to provide communication interface means for exchanging information with the production plant, and to modify the operation plan momentarily based on the performance information taken from the production plant.

[0005]

[Means for Solving the Problems]

(1) The operation plan creation method specifies plant information that defines the equipment used in the plant, line information that specifies the process steps for producing the product, and manufacturing recipes from the raw materials to obtain the product. Read the recipe information and the job information that specifies the operation plan creation target from the storage means,
In the method of creating an operation plan that automatically specifies the equipment to be used in the production process and its assigned time, and displays it on the Gantt chart, the above when the operation is actually performed based on the fixed operation plan created first Of various information, performance information including event information indicating the start and end times of production, and plant information, line information, and recipe information that have changed up to the present time are read from the storage means, and the first definitive operation plan is set. It is characterized by automatically creating a modified operation plan.

(2) The operation plan creation device specifies plant information that defines the devices used in the plant, line information that specifies the process steps for producing the product, and manufacturing recipes from the raw materials to obtain the product. User input / output means for inputting recipe information, job information designating an operation plan creation target, displaying an operation plan proposal, and performing edit operation,
Necessary from storage means for storing each of plant information, line information, recipe information, job information, fixed operation plan, and performance information including event information, information management means for managing the storage means, and the storage means Automatic planning means for reading out various information and creating an operation plan, and means for creating a Gantt chart for displaying the created operation plan,
In the operation plan creation device composed of the manual correction means for manually correcting the Gantt chart of the above operation plan, the above-mentioned various information in the case of actually operating based on the fixed operation plan created first, and the production Actual information including event information indicating start and end times, and plant information, line information, and recipe information that have changed after that are read from the storage means, and an operation plan that is a modification of the first fixed operation plan is automatically created. It is characterized by the addition of automatic plan correction means.

(3) In addition to the operation plan creating device according to claim 2, the operation plan creating device for correcting the operation plan momentarily based on the performance information obtained directly from the plant control device is a device for controlling the device and the production plant. Characterized in that it is provided with a communication interface means for connecting to the device and directly exchanging information, through the communication interface means, to directly execute the operation plan previously created in the plant control device,
The operation plan previously executed based on the result information obtained as a result is automatically corrected by the automatic plan correction means. By repeating this operation, the operation plan is corrected every moment based on the result information directly obtained from the plant control device. Is.

[0008]

The method and apparatus for creating an operation plan of the present invention inputs basic data, actual data, and operation request data, and automatically determines the apparatus used for production and its operation sequence and displays it on the Gantt chart. It is to be displayed. The fixed operation plan created for the previous operation request, the above various information, the job name of the result of the operation based on the fixed operation plan, the part name and the equipment name used, the production amount, the start of the operation And by simultaneously incorporating the event performance information that notifies the end time, by displaying the operation plan based on the previous performance information in advance on the Gantt chart, and then by inputting the newly added operation request information, Create an operation plan that is consistent with the previous performance information.

The user input / output means inputs information necessary for creating an operation plan, displays the operation plan, and edits it.
The storage means stores each of the plant information, the line information, the recipe information, the job information and the fixed operation plan, which are necessary for the automatic planning input from the user input / output means, and the actual result information including the event information of the operation result by the fixed operation plan. Store. The information management unit manages reading and writing of information stored in the storage unit. The automatic planning means reads out the plant information, the line information, and the recipe information of the job group which is the target of the operation plan stored in the storage means in advance from the storage means, and the fixed plan corrected by the automatic correction means is stored. If it exists, the operation plan is automatically created by automatically setting the time of execution and the unit to be used in order from the highest priority job in the above-mentioned job group. Gantt chart creation means, on the basic screen created in advance,
According to the automatically created operation plan, target job names, production quantities, part names and equipment names used in the production process, operation times, etc. are assigned. The manual correction means corrects the Gantt chart of the operation plan automatically created and displayed on the display means by manual operation from the user input / output means. The automatic plan correction means automatically makes the fixed operation plan based on the actual result information including the event information indicating the start and end times of the production when the operation is actually performed based on the fixed operation plan created by the automatic plan making means. Correct and display on the Gantt chart. The communication interface means defines a predetermined method (protocol, code, etc. required for communication) and uses it in the target job name, production amount, and production process according to the operation plan created by the operation plan creation device of the present invention. The part name, the device name, the information indicating the operation time, and the result information are exchanged with the plant control device.

[0010]

[Embodiment] Next, a method and apparatus for creating an operation plan of the present invention will be described. I will explain the terms in advance. I. The Gantt chart is a diagram showing the result of creating the operation plan. The vertical axis is the device, the horizontal axis is the period, and the usage time of the device is delineated.In addition to job order, occupation time, allocation device, etc., inflow time of each raw material, processing time, product outflow time, etc. Make them distinct and correct with the mouse. In addition, the periodic inspection of the equipment and the closed hours etc. are input from the outside. B. The job information is an order (request) that says to make a product name (what), quantity (how long), and delivery date (by what time).
One request is called a job. Sometimes a unit called a lot or batch is used. The product name, quantity, and delivery date of the production target are also simply called an order. The operation plan usually consists of a plurality of job information. C. Plant information includes receiving equipment, transportation equipment, processing equipment,
Regarding equipment related to production such as storage equipment, pipelines, connection points, shipping equipment, etc., what kind of equipment is there, how they are connected in time series, and how much time each equipment takes to process Define ratio (capacity), transfer time between devices, etc.

D. The line information indicates which device is used for production from the device group defined by the plant information. A group of devices on the process flow grouped by the minimum processing unit in the operation plan is called a part.
There are various parts such as arrival, storage, processing, and shipping. In the line information, the order of parts and the devices used in each part are specified. E. The recipe information is a manufacturing recipe for each product, and specifies the correspondence between the raw material and the product, the time required for processing, and the like for each product.
Manufacturing recipes will include different processing times depending on what is made than the device. F. The event log file is a data file in which operational data such as detailed date and time of operation, JOB name, part name, and production amount are collected as a result of operation.

FIG. 1 is a block diagram showing an embodiment of an apparatus for carrying out an operation plan creating method according to the present invention. 10
Is a central processing unit, which constitutes a main part of the operation plan creating apparatus of the present invention and is realized by a computer. 11
Is a user input / output means. Plant information that defines the equipment used in the plant, line information that specifies the process steps that produce the product, recipe information that specifies the manufacturing recipe from the raw material to the product, and a job that specifies the target for creating the operation plan. Enter the information, display the Gantt chart of the operation plan, and edit it. It consists of the following means. 11a
CRT is a typical display means. 11b
Is a display control means, which controls the display means 11a in accordance with instructions from the planning means and the correction means (described later). 1
Reference numeral 1c is an input means, typically a keyboard and a mouse, and various reading devices can be used. 11d
Is an input control means, which converts a signal input by the input means into a signal suitable for exchanging with the central processing unit 10.

Reference numeral 12 denotes an automatic plan making means, which reads job information, plant information, line information, and recipe information from a storage means (described later), and is based on a fixed operation plan automatically corrected by the automatic plan correcting means. Then, the time to execute the job and the unit to be used are automatically set to automatically create an operation plan. Reference numeral 13 denotes a plan automatic correction means, which is operated based on performance information including event information that notifies the start and end times of production when actually operating based on the fixed operation plan created by the automatic plan making means 12. Automatically correct the plan.

A Gantt chart creating means 14 manages the display and change of the basic screen of the Gantt chart on the basis of an instruction from the automatic planning means 12. The basic screen created in advance is read from the storage means, and the device used in each process of production, its operating time, and the like are assigned to the target job according to the operating plan. It has a function (tool) for displaying the operation plan generated by the automatic planning means 12 and for allowing the user to correct the screen by the manual correction means 15. For example, the operation plan generation tool has a function of generating and displaying an initial operation plan proposal, a function of advancing or shortening delivery time for a plan which has been made available by manual operation, and the like. Reference numeral 15 denotes a manual correction means for correcting the operation plan created by the automatic plan making means 12 or the plan automatic correction means 13 on the Gantt chart by using the user input / output means 11, and includes the following functions. . I. Change process allocation device and time (restrictions for automatic planning remain). B. Designation of process allocation device and time change prohibition. C. Designation of prohibited areas (prohibition of equipment use, product switching). D. Change the cleaning time

Reference numeral 16 is a storage means. Information management means 17
Stores various information managed by. In order to make the explanation easy to understand, the contents of the storage means are classified as follows. The section a is a basic data file and stores the following data. The job information, plant information, line information, recipe information, and category b are operation plan files, and store data such as fixed operation plans. The category c is an event log file, and stores the data of the performance information that has been operated based on the fixed operation plan. (Refer to FIG. 4) Reference numeral 17 is an information management means, which is job information to be planned, plant information that defines devices, pipes, connection points, etc., line information that specifies the process of product production, raw materials and products. The contents of the storage means 16 are managed by organizing the recipe information designating the manufacturing prescription, the operation plan, the performance information such as an event log file, and the constraint conditions at the time of automatic planning.

Reference numeral 18 denotes a communication interface means, which determines a predetermined method (protocol, code, etc. required for communication) in consideration of the amount of information and the transmission speed, and operates by the operation plan creating apparatus 10 of the present invention. According to the plan, the target job name, the production amount, the part name and the device name used in the production process, the operation instruction information such as the operation time, and the result information are exchanged with the plant control device. Reference numeral 19 denotes a plant control device, which controls the input amount of raw materials, energy, etc. used in the production plant through control devices such as various sensors, control valves, motors, etc. to perform product production. The time to execute the job for production and the operation plan of the units to be used are sent from the central processing unit 10 via the interface means 18. Various amounts to be controlled can be arbitrarily set even by the operator, operation performance information is stored, and the communication interface means 18 is used.
Is sent to the central processing unit 10 via.

The implementation of the method of the present invention using the operation plan creating apparatus described above will be described. The method of creating an operation plan of the present invention includes at least the following steps. I. Initial information input stage First, the user input / output means 11 inputs plant information, line information, recipe information, and job information required for automatic planning used in a job. Next, the user input / output means 1
According to the instruction from 1, the information management means 17 searches for recipes and lines for all jobs registered in the operation plan (order) stored in the storage means 16. B. Automatic Planning Stage The automatic planning stage 12 selects one job having the highest priority from all jobs and selects usable units for each part of the job. Furthermore, the processing time for each part is determined. Then, the time zone in which the unit is used is set based on the delivery date or the start time. In accordance with this instruction, the Gantt chart creating means 14 automatically displays a plan display diagram (a JOB, a device, a rectangular diagram in which time is specified) on the Gantt chart on the pasting display means 11a.

C. Plan automatic correction stage The fixed operation plan created by the automatic planning 12 is automatically corrected by the data of the event log file which is the actual result information. D. Manual re-pasting step If necessary, the display diagram in the Gantt chart is re-pasted by designating buttons on the Gantt chart by using the manual correcting unit 15 and the input unit 11c such as a mouse. (Respecify the position.) E. Steps of automatic adjustment after manual re-pasting View the whole figure and re-paste the display diagram to make fine adjustments to complete the operation plan. By preparing such a framework, the basic constraints for planning are included in the automatic plan making means 12 for generalization, and the manual correction means 15 is used for the constraints that the automatic plan making means 12 cannot adapt. And these will be used alternately to proceed with the planning. An object-oriented environment is suitable for software development of this system. The reason is that it is necessary to develop a complex man-machine system, and the data necessary for creating an operation plan and the operation plan creation algorithm can be clearly separated.
This is because of its high expandability in the future.

FIG. 2 is a diagram showing a flow of processing for automatically creating an operation plan. The part shown by the solid line in the figure is the conventional processing procedure, and the range of step 2 to step 4 shown by the dotted frame is the additional part according to the present invention. Step 1 A predetermined button on the screen of the display means 11c is designated by using an input means such as a mouse to start the planning. Step 2 The plan automatic correction means 13 is first the storage means 1
Read the finalized operation plan created from 6 above. Step 3 The performance information including the event log file and the job data of the new operation request are read from the storage means 16. Step 4 The fixed operation plan is corrected based on the above result information, and the operation plan based on the result information is displayed on the Gantt chart on the display means 11a. The fix is for each event,
The job name and part name of each event are searched for from the fixed operation plan, and the start time (or end time) thereof is matched with the event occurrence time. Step 5 The automatic plan making means 12 selects the job to be assigned the highest priority from the new jobs based on the operation plan reflecting the above-mentioned results. Step 6 Determine the allocation order of the devices for all steps of the selected job. Step 7 Determine the equipment to be used in each process based on the operation plan that reflects the actual results. Step 8 The shortest time allocation of the job is performed according to the advance designation or the priority of delivery date designated by the user from the user input / output device in advance. Advancement is to advance each process so that there is no vacancy in processing time, and if you specify priority for delivery date, determine each processing time so that the end time of product generation is as close as possible to the specified delivery date. To do. Similarly, the cleaning time can be taken into consideration. Step 9: The job is allocated and displayed on the Gantt chart based on the time and the device obtained in step 8. (Steps 5 to 9 are repeated for all jobs in the production plan) Step 10 The result is registered in the storage means 16 to complete the production plan.

In the following description, the operation plan table of the Gantt chart shown in FIG. 3 will be used as the definite operation plan a in the description. FIG. 4 shows the fixed operation plan a created earlier, that is, FIG.
It is an event log file that displays the result information obtained as a result of driving based on the operation plan table of FIG. The storage device 16 stores the start S and end E of the operation, the job name, the work part name, the device name used, the production amount, the occurrence time of the event (start or end of the operation), and the like. FIG. 5 is a diagram for explaining the steps of creating and modifying the fixed operation plan. I. The initial operation of creating the definitive operation plan starts from step 5 of FIG. 2 after the initial information input step. (A) of a figure shows the definite operation plan a (operation plan table of FIG. 3) created as follows. Dry Curry 100t (Job 1)
It is a job required to complete the production of the custom-made curry 80t (JOB2) at 10:00.

When the production request is read from the storage means 16, the automatic plan making means 12 reads out the plant information, the production process line information, and the manufacturing prescription recipe information necessary for these jobs. Next, one job to be prioritized is selected. In this example, it is JOB2 (As a result of repeated operation, JOB1 does not fit into the device array at 10 o'clock.
OB2 was prioritized). Next, for JOB2, an available unit is selected for each part. In this example, the apparatus X2 is selected for blending, the apparatus Y is selected for cooling, and the apparatus Z is selected for the drying step on condition that the raw materials have been charged in advance for custom-ordering. Furthermore, the processing time of each part is determined. Then, the time zone in which the unit is used is determined based on the delivery date (10:00).

B. Next, for JOB1, select an available unit for each part. In this example, raw materials 1, 2
The devices A and B are selected, the device X1 is selected for blending, the device Y is selected for cooling, and the device Z is selected for the drying step. Further, the processable time of each part is determined. And delivery date (10
JOB2 is the time when the unit is used based on
And decide not to overlap. The JOB of the operation plan created in this way is displayed by the Gantt chart creation means 14 by automatically pasting the display diagram on the Gantt chart on the display means 11a. The operation plan at this stage is the operation plan table of FIG. 3, and is the (A) confirmed operation plan a of FIG.

C. FIG. 5B shows an event log file of the previously obtained performance information (same as FIG. 4). D. Next, the correction operation based on the event log file of the record information will be described. The automatic correction operation starts from step 1 of FIG. 2 and ends at step 4. The automatic plan correction means 13 also uses the fixed operation plan a in FIG. 5A read from the storage means 16 in step 2 in step 3 as well.
The correction is made in step 4 using the event log file of (B) performance information read in step (4). (C) is
This is a modification of the already obtained (A) definite operation plan a based on the data of the event log file (FIG. 4) of the performance information. The trace of correction between (A) and (C) is shown by the dotted line. The initially scheduled JOB1 and JOB2 implementation times have been changed (apparatus A delays the start of use at JOB1 from 5:20 to 6:20, so that apparatus X1 is
I used it for OB2 from 5 am to 7 pm and set JOB1 to 8:10). And the use of the device X2 was stopped (change of unit).

E. Next, it is assumed that a new operation request (order) for using the same plant as the fixed operation plan a is generated. (D) shows a new order. JOB3 has 100t of sweet curry, and JOB4 has 60t of curry soup. Therefore, this operation and operation plan will be created. Based on the corrected (C) definitive operation plan a, the automatic plan making means 12 creates an operation plan of a new order (D) newly input as a continuation thereof. The procedure is similar to the creation of the fixed operation plan a in FIG. 5, but the fixed operation plan read first is the corrected fixed operation plan a, and steps 5 to 10 are repeated. The operation plan newly planned in this way is shown in FIG. F. (F) shows an operation plan created by the conventional method for comparison. If the operation plan is created by the conventional method, the actual information is not reflected in the first fixed operation plan a, and the new operation plan is simply added and displayed so as not to overlap on the time axis. FIG. 6 is an example of a Gantt chart showing an operation plan (E) created by the method of the present invention. FIG. 7 is an example of a Gantt chart showing an operation plan (F) created by the above conventional method.

The above operation is executed by designating a button represented by the following figure on the Gantt chart. (FIG. 6
Reference) For [Schedule], specify [Schedule] to make a plan. Perform steps 5 to 9 of FIG. 2 for the order. For [Schedule back], [Schedule back] is designated, a job is designated, and the display diagram of the JOB is stripped from the Gantt chart. (To be re-planned) [Front Justification] specifies the display diagram of the job, and specifies [Front Justification] to pack the job group as far forward as possible.
In [Last Justification], the display diagram of the job is designated, and [Last Justification] is designated to stuff the job group in the backward direction as much as possible.
For [Adjustment], specify [Adjustment] and determine the time of the job on the Gantt chart again. Step 9 of FIG. 2 is executed. "Fix job" designates a job display diagram, "job fix" is designated to prohibit movement of the display diagram, or "cancel" is designated to cancel the prohibition state.
For “Fixation time fixed”, specify the job display diagram, specify “Fixation time fixed” to prohibit automatic calculation of the cleaning time of the display diagram, or specify “Cancel” to automatically calculate the cleaning time. Yes In addition to these, necessary buttons can be appropriately provided. Finally, specify Schedule to confirm the plan.

Next, an explanation will be given of an apparatus which is provided with a communication interface means and which repeats the correction of the definite operation plan created previously by the result information obtained directly from the plant control apparatus to complete an accurate operation plan. This device is shown in FIG.
The central processing unit 1
0 and the plant control device 19 are connected and a communication interface means 18 for exchanging information is added. This communication interface means 18 is used for the plant control device 1.
The signal format, level, and protocol are defined so that bidirectional communication can be performed between the operation plan generator 9 and the operation plan creation device. As described above, the plant control device 19 shown in FIG. 1 operates the production plant according to the predetermined operation plan sent via the communication interface means 18, and reversely stores the performance information in the storage means 16. Transfer and store.

FIG. 8 is a flow chart for explaining a procedure for correcting the fixed operation plan based on the performance information. The correction operation is repeated via the communication interface means 18.
The progress of creating the operation plan is monitored by user input / output means and amended as necessary. Step 1 A predetermined button on the screen of the display means 11a is designated by using an input means such as a mouse to start creating an operation plan (start 1). Step 2 The automatic planning means 12 automatically creates an operation plan for a production plan (job). Step 3 Manual correction means 15 to the above operation plan
Make the necessary corrections and confirm. Step 4 The above defined operation plan is transferred to the corresponding production plant 19 via the communication interface 18. Step 5 The applicable production plant 19 executes the above operation plan and accumulates the actual result data. Step 6 The creation of the continuous operation plan of the present invention is started (start 2). The data of the result executed previously is stored in the storage means 16
Transfer to and update the event file. Step 7 The plan automatic correction means 13 reads out the fixed operation plan created in step 3 from the storage means 16. Step 8 Similarly, the event file updated in Step 6 is read and the contents of the fixed operation plan are automatically corrected to create a new operation plan. Step 9 Display the newly created operation plan on the Gantt chart. This operation plan will be used to prepare the next operation plan. (Return to step 2 and repeat.) In this way, the required performance information is obtained from the corresponding production plant, a new operation plan is created, the operation plan is executed by the production plant, and the performance information is next This is applied to the creation of the operation plan of the above, and by repeating this operation, the online correction with the production plant becomes possible.

[0028]

As described above, according to the present invention,
The new operation plan can automatically create an operation plan according to the actual condition by inserting the actual result information of the operation into the previously created operation plan. Therefore, the automatic planning means and the manual correction means can rapidly repeat the automatic planning and the manual correction, so that a desired plan can be created in a short time, and further, the planning work can be performed by specifying the constraint. Can be finished promptly. In particular, it is possible to automatically create an operation plan that is in line with the actual conditions by feeding back the actual result information from the operation plan that was created the previous time, so that an operation plan based on the actual results can be immediately generated when a new operation request is made. Can be created, downloaded to the production plant and executed. The performance information can be collected and stored in the storage means, and can be read and used when the plan is created again. In this way, since the performance information of the production plant is fed back online, the effect of rapidly creating an accurate operation plan is remarkable.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of an operation plan creating apparatus according to the present invention.

FIG. 2 is a flowchart illustrating an operation added to the operation plan creating method of the present invention.

FIG. 3 is a diagram illustrating a relationship between a plant, a production process, and a Gantt chart according to a conventional method of creating an operation plan.

FIG. 4 is a diagram showing an example of an event log file which is performance information.

FIG. 5 is a part of a Gantt chart showing the relationship between the first fixed operation plan and the operation plan corrected by the data of the event log file.

FIG. 6 is a Gantt chart modified according to event implementation information.

FIG. 7 is a Gantt chart illustrating a first definite operation plan.

FIG. 8 is a flow chart for creating an operation plan that is corrected every moment based on the performance information obtained directly from the plant control device.

[Explanation of symbols]

 10 Central Processing Unit 11 User Input / Output Device 11a Display Means 11b Display Control Means 11c Input Means 11d Input Control Means 12 Automatic Plan Making Means 13 Automatic Plan Modifying Means 14 Gantt Chart Creating Means 15 Manual Modifying Means 16 Storage Means 17 Information Management Means 18 Communication interface means 19 Plant control device

Claims (3)

[Claims] 1. Plant information for defining a device used in a plant, line information for designating a process step for producing a product, recipe information for designating a manufacturing recipe from a raw material to a product, and an operation. In the method of creating an operation plan that reads the job information that specifies the plan creation target from the storage means and automatically creates the operation plan that specifies the equipment used in the production process and its assigned time, and displays it on the Gantt chart. , The above-mentioned information when actually operating based on the fixed operation plan created at the beginning, performance information including event information that notifies the start and end times of production, and plant information and line information that have changed up to now A method for creating an operation plan, characterized in that the recipe information and the recipe information are read from the storage means and an operation plan in which the first definite operation plan is modified is automatically created. . 2. Plant information for defining equipment used in a plant, line information for designating a process of producing a product, recipe information for designing a manufacturing recipe from a raw material to a product, and creation of an operation plan. User input / output means for inputting job information that specifies the target, displaying and editing the operation plan, plant information, line information, recipe information, job information, fixed operation plan, and results including event information A storage unit for storing each piece of information, an information management unit for managing the storage unit, an automatic plan making unit for reading out necessary information from the storage unit, and creating an operation plan, and an operation plan thus created. An operation plan creation device comprising a Gantt chart creation means to be displayed and a manual modification means for manually modifying the Gantt chart of the above operation plan. In the above, the above-mentioned information in the case of actually operating based on the fixed operation plan created at the beginning, performance information including event information notifying the start and end times of production, and the plant information and line information changed after that An operation plan creation device comprising: automatic plan correction means for reading recipe information and storage means from storage means and automatically creating an operation plan in which the first fixed operation plan is corrected. 3. A communication interface means for directly exchanging information by connecting to a control device of a production plant is provided, and the plant control device is made to directly execute the operation plan previously created via the communication interface means. Based on the result information obtained as a result, the automatic plan correction means automatically corrects the operation plan previously executed. By repeating this operation,
The operation plan creating device according to claim 2, wherein the operation plan is corrected every moment based on the performance information obtained directly from the plant control device.