JPS62159596A - Maintenance device for building management system - Google Patents

Abstract

PURPOSE:To monitor the state of installed equipments highly accurately without an error during the stop of the operation of a terminal equipment by storing the state signal of the equipments during the stop of the operation and transferring this state signal to the terminal equipment during a resuming of the operation of the terminal equipment. CONSTITUTION:When the operation of the terminal equipment 12 is stopped, the operation of a transmission circuit 3 is stopped and a communication circuit between the transmission circuits 3 and 6 is interrupted. A terminal equipment operation detecting circuit 8 detects this interruption, recognizes the stop of the operation of the terminal equipment 12, and then, a data memory control circuit 9 operates. According to the operation of the data memory control circuit 9, a processing circuit 5 controls an input control circuit 11 according to schedule data stored in the second memory circuit 7. An auxiliary maintenance device 13 fetches the state signal of the equipments 14 through the input control circuit 11 and stores in the second memory circuit 7. At every time when the input control circuit 11 operates and the state signal of the equipments 14 is inputted, a display control circuit 15 operates and the state signal value of the installed equipments 14 is displayed on a display device 10.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a building management system maintenance device, and particularly to a building management system maintenance device that can stop the operation of a terminal device and perform maintenance on the terminal device. be.

<Conventional technology> Air conditioning equipment, 'GL pumps, various electrical equipment, meters,
In buildings where field devices such as detectors are installed in a distributed manner, it is necessary to centrally monitor and control a large number of field devices.

This type of building management system maintenance equipment was developed in Japanese Patent Application Laid-open No. 59-1
It is disclosed in Japanese Patent No. 11495. The disclosed pill management system maintenance device is provided with a terminal device that monitors and controls field equipment in each predetermined section, and has a configuration in which a plurality of terminal devices are connected to one or two central monitoring devices. It becomes. Furthermore, in order to reduce the processing load on the central monitoring device, the terminal devices themselves are equipped with some of the functions of the central monitoring device.

A so-called distributed processing method is adopted.

When performing inspection and maintenance of such a building management system,
Inspections that can be performed without shutting off the power, such as checking the source voltage and checking the operation of indicators, can monitor the condition of equipment on site. However, if you want to check whether the processing devices of the central monitoring device or terminal devices are functioning properly, run a program to check the operation of the processing devices.
We are currently checking its operation.

When running such a program for checking operation,
The connection between the processing device and the on-site device or between the processing devices is disconnected so that the executed program does not affect the operation of the on-site device.

It is also necessary to clean the processing device, and in this case too, the power supply is shut off and cleaning is performed.

In the case of Konera, while running a program to check the operation of the processing equipment and while cleaning the processing equipment.

Since it becomes impossible to monitor the status of on-site equipment, some kind of countermeasure is required.

<Problems to be solved by the invention> In the case of a central monitoring device, the functions of the central monitoring device can be distributed in each terminal device, or the central monitoring device can be configured with two systems, It is possible to monitor the status of field equipment.

However, in the case of a terminal device, if its operation stops or it is disconnected from the field equipment, the state of the field equipment cannot be completely monitored during that time. For this reason, it is unthinkable to operate terminal devices with the same functions in parallel, but this would complicate the overall structure of the building management system and increase manufacturing costs. If a terminal device centrally reads the meters of a gas usage meter or tap water usage meter, and inputs data to aggregate the usage amount for each user, the maintenance personnel's records must be It can be processed by means. That is, before stopping the operation of the terminal device, a maintenance person records the indicated values of each measuring device, and after the recording is completed, the operation of the terminal device is stopped. When the terminal device restarts operation, maintenance personnel read the indicated values of each measuring device, and input the difference between the indicated value and the indicated value before the terminal device stopped operating as a correction value to the monitoring device.

However, with this method, if there are a large number of meters for meter reading or the meters are installed in sparse locations,
Monitor reading of readings and correction values of measuring instruments before stopping the terminal device and restarting operation'
In the case of n, there is a large time difference between the beginning and end of the reading of the reading on the measuring instrument.
During this period, the amount of electricity, gas, water, etc. used changes, causing meter reading errors, and correction values with this error are input to the monitoring device. Therefore, the amount of electricity used aggregated by the monitoring device and the actual amount are different. There is a problem that there is a difference in the amount used.

This invention was made in view of the building management system maintenance devices that have been proposed in the past, and its purpose is to transmit the status from equipment to the auxiliary maintenance device while the operation of the terminal device of the building management system is stopped. A signal is input, the auxiliary maintenance device processes the status signal, and when the terminal device resumes operation, the terminal device inputs the processing signal of the status signal of the equipment whose operation is stopped from the auxiliary maintenance device to the terminal device. The purpose of the present invention is to provide a building management system maintenance device that can automatically monitor equipment without errors.

Means for Solving the Problems> In the present invention, a terminal device that monitors the operating status of equipment is connected to the equipment, an input/output control circuit that controls the exchange of information, and a status signal from the equipment. The device includes a processing circuit that performs arithmetic processing, a first storage circuit that stores information, and a transmission circuit that transmits information. A plurality of terminal devices are connected to a central monitoring device, and the central monitoring device centrally monitors the operating states of the equipment based on the information stored in the first storage circuit.

In this invention, an auxiliary maintenance device is provided, and this auxiliary maintenance device has a first connection part connectable to the equipment, a second connection part connectable to the transmission circuit, and detects operation and stoppage of the terminal device. A terminal device operation detection circuit that stores information, a second storage circuit that stores information, and a detection signal of the terminal device operation detection circuit that captures information from equipment or stores information between the first and second storage circuits. It has a data control means for controlling transmission and reception.

Effect> In this invention, when stopping the operation of the terminal device,
Connect the first connection of the auxiliary maintenance device to the equipment, and
Connect the connection part to the transmission circuit.

After connecting the auxiliary maintenance device to the terminal device in this way, the operation of the terminal device is stopped. While the terminal equipment is stopped,
When the status signal of the equipment is stored in the second storage circuit of the auxiliary maintenance device and the operation of the terminal device is restarted, the storage information in the second storage circuit is transferred to the first storage circuit. For this reason, the status signal of the equipment while the terminal device is out of operation is
The information is input to the terminal device when the operation is resumed, and the equipment can be monitored automatically and without error.

<Example> Below is the building management system maintenance device of this invention.

The embodiment will be explained in detail using the drawings.

FIG. 1 shows the configuration of an embodiment of the present invention, in which equipment 14
A terminal device 12 is connected to. That is.

The terminal device 12 has an input/output control circuit 4. Processing circuit 1. It is composed of a first storage circuit 2 and a transmission circuit 3, and an input/output control circuit 4 is connected to equipment 14 through a signal line 18. The processing circuit 1 connects the input/output control circuit 4. with signal lines 31, 32 and 33, respectively. It is connected to the first storage circuit 2 and the transmission circuit 3.

The terminal device 12 is also connected to a central monitoring device 20 by a signal line 21 .

In this invention, an auxiliary maintenance device 13 connectable to the equipment 14 and the terminal device 12 is provided. The auxiliary maintenance device 13 includes a first connection portion connectable to the equipment 14;
A second connection connectable to the transmission circuit 3 is provided. In the embodiment, the signal line 17 and the input control device 11 constitute a first connection section.

The signal line 19 and the transmission circuit 6 constitute a second connection section.

Auxiliary maintenance device 3 is provided with a processing circuit 5, which is connected to the input control device 11 through signal lines 34, 35 and 36. It is connected to the transmission circuit 6 and the display 10. The terminal device operation detection circuit 8 and the processing circuit 5 are connected by a signal line 37, and the terminal device operation detection circuit 8 is connected to the signal line 3.
At 8, a data storage control circuit 9 is connected. The data storage control circuit 9 connects the data transfer end determination circuit 16 to the signal line 40.
The data transfer end determination circuit 16 is connected to the signal line 41
connection to the display control circuit 15.

The display control circuit 15 and the processing circuit 5 are connected by a signal line 42, and the second storage circuit 7 is connected to the processing circuit 5 by a signal line 43.

During normal operation, the first and second connections are not connected.

An operation program is stored in advance in the first storage circuit 2 of the terminal device 12, and the operation program is read out from the processing circuit 1 to control the input/output control circuit 4. A status signal is input from the equipment 14 through the input/output control circuit 4,
The processing circuit 1 processes this status signal into a predetermined format. The state signal processed by the processing circuit 1 is stored in the first storage circuit 2.

When there is a call from the central monitoring device 20, the status signal of the equipment [4] that has not been stored in the first storage circuit 2 is sent.

Central monitoring device 20 via signal line 21 through transmission circuit 3
transmitted to. Using this status signal, the central monitoring device 20 can centrally monitor equipment distributed throughout the building.

On the other hand, the terminal device 12 operates or stops the equipment 14 in response to a command from the central monitoring device 20 or via the control device 4 issued by one person according to the schedule data stored in advance in the first storage circuit 2. Let's do it. Processing circuit 1 via input/output control device 4.

The equipment 14 also inputs a status signal, and compares and calculates this status signal with the determination value stored in the first storage circuit 2. As a result of this comparison calculation, it is determined that the operation or stoppage of the equipment 14 is abnormal.

An abnormality signal indicating the result and comparison value is sent to the central supervisory station.
transmitted to a viewing device.

When stopping the operation of the terminal device 12 in order to check the operation of the processing circuit 1 of the terminal device 12 or to clean the processing circuit 1, the first and second connections are made before stopping the operation. The auxiliary maintenance device 13 is connected to the equipment 14 and the terminal device 1.
Connect to 2.

When the connection of the second connection part is completed and the transmission circuits 3 and 6 are connected by the signal line 19, the processing circuit 5 of the auxiliary maintenance device 13 is stored in the first storage circuit 2 of the terminal device 12. The monitoring schedule data of the equipment 14 being installed is read out and stored in the second storage circuit 7.

When the operation of the terminal device 12 is stopped, the operation of the transmission circuit 3 is stopped, and the communication circuit between the transmission circuits 3 and 6 is cut off.

When the terminal device operation detection circuit 8 detects this interruption and confirms that the terminal device 12 has stopped operating.

Data storage control circuit 9 is activated. Due to the operation of the data storage control circuit 9, the processing circuit 5 operates according to the schedule data stored in the second storage circuit 7.

Controls the input control circuit 11.

The auxiliary maintenance device 13 takes in the status signal of the equipment 14 via the input control circuit 11 and stores it in the second storage circuit 7 . Each time the input control circuit 11 operates and the status signal of the equipment 14 is input, the 1 display control circuit 15 operates and the status signal value of the equipment 14 is displayed on the 1 display 10.

When the operation of the terminal device 12 is restarted, the operation of the transmission circuit 3 is restored, and a communication circuit between the transmission circuits 3 and 6 is established.

When the terminal device operation detection circuit 8 detects this establishment and confirms that the terminal device 12 has resumed operation.

The operation of the data storage control circuit 9 cannot be switched from a storage operation to a data transfer operation. Therefore, the state signal of the equipment 14 stored in the second storage circuit 7 is transmitted to the terminal device 12.
will be forwarded to. In the terminal device 12.

The state signal of the equipment 14 transferred from the auxiliary maintenance device 13 is stored in the first storage circuit 2.

In this way, the state signal of the equipment 14 while the terminal device 12 is out of operation is not imported into the first storage circuit 2 and the correction process is performed.

In the data transfer end determination circuit 16, all the status signals of the equipment 14 stored in the second storage circuit 7 are processed.

When it is confirmed that the data has been transferred to the terminal device 12, a confirmation signal is issued. In response to this confirmation signal, the 0 display control circuit 15 issues an extinguishing signal to erase the display on the display 10.

This extinguishing signal causes the display on the display 10 to disappear.

The above series of operations is shown in a flowchart as shown in FIG.

The auxiliary maintenance device 13 may be 5, for example, as shown in FIG.

It is convenient to have a configuration in which it is housed in a case 722 to which a handle 21 for transportation is attached. By making it portable, maintenance personnel can transport the auxiliary maintenance device 13 to a necessary site and connect it to the equipment 14 and the terminal device 12.

In this way, when the terminal device 12 stops operating, the equipment 1
4 and the terminal device 12, the status signal of the equipment 14 while the terminal device 12 is out of operation is stored in the auxiliary maintenance device 13. When the operation of the terminal device 12 is restarted, the status signal of the equipment 14 stored in the auxiliary maintenance device 13 is transferred to the terminal device 12. Therefore, even if the terminal device 12 is stopped for maintenance, 14 can be completely monitored. By providing the display device 10 in the auxiliary maintenance device 13, the status signal of the equipment 14 is displayed so that maintenance personnel can confirm the operating state of the equipment 14 while the terminal device 12 is not operating.

In addition, the status signal of the equipment 14 is displayed on the display 10,
By making the signal disappear when it is transferred from the auxiliary maintenance device 13 to the terminal device 12, the status signal of the equipment 14 whose operation is stopped on the terminal device 12 is transferred from the auxiliary maintenance device 13 to the terminal device 12. can be easily checked by maintenance personnel. moreover.

By making the auxiliary maintenance device 13 portable, it is possible to carry it to the site and easily monitor the equipment automatically and without errors.

Although Fig. 3 shows a box-shaped case 22 containing the auxiliary maintenance device 13, the shape is not limited to the box-shaped case, and can be of various shapes as long as it can be configured in a portable manner, such as a bag-accommodated type. It is possible.

<Effects of the Invention> As explained in detail above, according to the present invention, the status signal of the equipment while the operation of the terminal device is stopped is stored, and when the operation of the terminal device is restarted, this status signal is transferred to the terminal device, and the terminal device A building management system maintenance device that can monitor the status of equipment with high accuracy without error while the device is not operating, and can be configured to be portable at low manufacturing costs to improve maintenance work efficiency. can be provided.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 is a flowchart showing the operation of the embodiment of the invention, and Fig. 3 is the configuration of the auxiliary maintenance device in the embodiment of the invention. FIG. 1.5...processing circuit, 2...th storage circuit, 3.6...transmission circuit, 4...
Input/output control circuit, 7...Second memory circuit, 8.
. . . Terminal device operation detection circuit, 9 . . . Data storage control circuit, 10 . . . Display device. 11...Input control circuit %12...Terminal device, 13...Auxiliary maintenance device, 14...
・Equipment equipment, 15...Display control circuit, 16...
. . . Data transfer end determination circuit, 20 . . . Central monitoring device. [1! 12-----One item unflexed 13・---One set of assistant maintenance and one 14...Sm breasts 20---Nakafumi Tsuneo Katsu 1i Placement 2nd figure

Claims (3)

[Claims] (1) An input/output control circuit that is connected to equipment and controls the exchange of information to and from the equipment, a processing circuit that performs arithmetic processing on status signals input from the equipment, and a first memory that stores the information. A plurality of the terminal devices are connected to a terminal device having a circuit and a transmission circuit for transmitting information and monitoring the operating state of the equipment, and the information stored in the first storage circuit is used to A building management system maintenance device comprising a central monitoring device that centrally monitors the operating state of equipment, a first connection part connectable to the equipment, a second connection part connectable to the transmission circuit, a terminal device operation detection circuit that detects operation and stoppage of the terminal device; a second storage circuit that stores the information;
an auxiliary maintenance device comprising a data control means for controlling the acquisition of information from the equipment or the exchange of stored information between the first and second storage circuits according to the detection signal of the terminal device operation detection circuit; A building management system maintenance device comprising: (2) The building management system maintenance device according to claim (1), wherein the auxiliary maintenance device has a display that displays the storage information of the second storage circuit. . (3) In the building management system maintenance device according to claim (2), the auxiliary maintenance device detects the completion of transfer of the stored information in the second storage circuit to the first storage circuit by the data control means. A building management system maintenance device, comprising a display erasing means for erasing the display on the display.