JP3290017B2 - Centralized monitoring and control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centralized monitoring and control device for controlling or monitoring devices such as a power plant and a substation.

[0002]

2. Description of the Related Art In a centralized monitoring and control device, operating states of circuit breakers and disconnectors of a plurality of power plants and substations are controlled or monitored in a centralized manner.

Here, a conventional centralized monitoring and control device will be described with reference to FIG.

[0004] Reference numeral 21 denotes a system board device that controls and monitors the operation state of each device such as a circuit breaker and disconnector at a plurality of power plants and substations. For example, a control signal for controlling devices such as a circuit breaker and a disconnector is transmitted to the system board device 21.
Is sent to the data bus 221 from Data bus 22
1 is connected to at least two first and second central processing units (hereinafter, referred to as CPUs) 231 and 232, and control signals are sent to the CPUs 231 and 232. One of the CPUs 231 and 232 is in the operating state, and the other is set in the standby state. Therefore,
For example, assuming that the CPU 231 is in the operating state, the control signal sent from the system board device 21 is processed by the CPU 231. Then, it is sent to the remote monitoring control device master station (hereinafter referred to as TCM) 241 and 242 through the data bus 222.

[0005] One of the TCMs 241 and 242 is set to the operation state, and the other is set to the standby state. Therefore, TCM
Assuming that the control signal 241 is in the operating state, the control signal processed by the CPU 231 is modulated by the TCM 241 and the remote monitoring control device slave station (hereinafter, referred to as TCR) 251-253.
Sent to The control signals are demodulated in the TCRs 251 to 253, and the demodulated control signals are applied from the relay boards 261 to 263 to the controlled devices 271 to 273, and the controlled devices 2
71 to 273 are controlled. When the controlled device is, for example, a circuit breaker or a disconnector, on / off of these devices is controlled.

The operating state of the controlled devices 271 to 273, for example, the ON / OFF state or the occurrence of a failure is transmitted to the TCR 25 via relay boards 261 to 263.
1 to 253. And TCRs 251 to 253
And is supplied to the TCM 241. In the TCM 241, the signal is demodulated, and the demodulated data is processed by the CPU 231. The processed result is sent to the system board device 21 and the operation state of the controlled devices 271 to 273 is displayed.

[0007]

By the way, in the centralized monitoring and control device having the above-mentioned configuration, a case is considered where, for example, a TCR 254 is added. The TCR 254 is connected to a relay panel 264 and a controlled device 274 in the same manner as the other TCRs 251 to 253. With the addition of these devices, it is necessary to change the software used for the calculations of the CPUs 231 and 232. However, the controlled devices 271-2
If the software is changed while data is being sent from 73, the reliability of binary information and numerical information such as alarms processed by the CPUs 231 and 232 during that time is reduced. Therefore, even if such data is sent to the system board device 21, accurate data is not always displayed.

In order to avoid such adverse effects, the operation data sent from the controlled device is displayed on the display 28 connected to the data bus 22 or printed by the printer 29 while the software is changed. Out, and watching the outputs, the operating state of the controlled device is monitored.
However, in this case, it is necessary to arrange monitoring personnel for monitoring the output of the display and the printer.

The present invention solves the above-mentioned drawbacks, and displays data of controlled devices on a system board while displaying the data.
It is an object of the present invention to provide a centralized monitoring and control device that can change software used for calculation of a central processing unit.

[0010]

SUMMARY OF THE INVENTION A centralized monitoring and control device according to the present invention includes a system board device for controlling or monitoring the operating state of a plurality of devices, and a control signal transmitted from the system board device to the plurality of devices. And at least two first and second central processing units for processing data sent from the plurality of devices, wherein the number of devices controlled or monitored by the system board device is increased, and the operation of the central processing unit is performed. When changing the software used for, the data sent from the existing equipment is processed by one of the first central processing unit,
Further, the configuration is such that the data of the equipment to be added is processed by the other second central processing unit and supplied to the system board device, and the software used in the second central processing unit is changed. is there.

[0011]

According to the above arrangement, at least two first and second central processing units are provided, and control signals sent from the system board to a plurality of devices or sent from the plurality of devices to the system board. Processing data. And
If the software for controlling the central processing unit is required to be changed due to the addition of devices to be controlled or monitored, the data of the existing device is processed by one of the first central processing units, for example, and the processing result is processed. It is configured to send to the system board device. At this time, since the data processed by the first central processing unit is the data of the existing device, there is no problem if the data is processed by the software before the change. The data of the equipment to be added is sent to the other second central processing unit and processed by the second central processing unit. Then, in the second central processing unit, while receiving the data of the equipment to be added, the calculation software is changed so as to be compatible with all the equipment including the equipment to be added.

Therefore, the software for the central processing unit can be changed while the data sent from the existing equipment is displayed on the system board device. As a result, when the software is changed, a person who monitors the output of a CRT, a printer, or the like, which has been required so far, is not required.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.

Reference numeral 1 denotes a system board device which controls the operation state of controlled equipment, for example, a circuit breaker or disconnector at a plurality of power stations or substations, and monitors the operation state. For this reason, the system board device 1 is configured to be able to collectively display the operating states of a plurality of controlled devices.

A control signal for controlling the controlled device is sent from the system board device 1 to the data bus 2A. CPUs 31 and 32 are connected to the data bus 2A, and control signals are sent to the CPUs 31 and 32. CPU 31, 32
One is set to the operation state and the other is set to the standby state. When the CPU 31 is in the operating state, the control signal sent from the system board device 1 is processed by the CPU 31,
The remote monitoring control device master station (hereinafter referred to as T
CM) 41 and 42. TCM41 and TC
As for M42, one is set to the operation state and the other is set to the standby state. Therefore, when the TCM 41 is in the operating state, C
The control signal processed by the PU 31 is modulated by the TCM 41, and the remote monitoring control device slave station (hereinafter referred to as TCR) 51-51.
It is sent to 53. In the TCRs 51 to 53, the control signals are demodulated, and the demodulated control signals are sent from the relay boards 61 to 63 to the controlled devices 71 to 73 to perform control. When the controlled devices 71 to 73 are circuit breakers or disconnectors, on / off of these devices is controlled.

The operating states of the controlled devices 71 to 73,
For example, data indicating an on / off state or a failure occurrence state is sent to the TCRs 51 to 53 via the relay boards 61 to 63. Then, the data is modulated in the TCRs 51 to 53 and supplied to the TCM 41. The signal is demodulated in the TCM 41, and the demodulated data is processed by the CPU 31. The processed result is sent to the system board device 1 and the operation states of the controlled devices 71 to 73 are displayed.

Here, a case is considered where, for example, a TCR 54 is added to the centralized monitoring and control device having the above-described configuration.
The TCR 54 is connected to a relay panel 64 and a controlled device 74 in the same manner as the other TCRs 51 to 53. With the addition of these devices, it is necessary to change the software used for the operations of the CPUs 31 and 32.

In this case, the existing devices TCR 51 to TCR 51
The operation data 53 is sent to the CPU 31 and processed using the software up to now. The processing result is sent to the system board device 1 and the operation state of each device is displayed.
By the way, since the data processed by the CPU 31 is from an existing device, there is no problem even if it is processed by the software before the change, and correct data is displayed on the system board device 1.

The data of the TCRs 1 to 3 in the operating state and the data of the TCR 4 to be added are supplied to the CPU 32 via the TCM 42 in the standby state. And
Among the data processed by the CPU 32, the added TC
The data in R54 is input to the direct memory access 101. Then, the data of the TCR 4 is read from the direct memory access 101, and the read data is calculated by the calculation unit 103 via the interface 102. The calculated result is sent from the interface 104 to the system board device 1 and displayed. Data bus 2
A is connected to a display 8 and a printer 9.

As described above, existing TCRs 51 to 53
Each data sent from the additional TCR 54 is added to the CPU 32 in the standby state. Then, in that state, the software used for the calculation of the CPU 32 is changed so as to be compatible with the existing devices TCR 51 to 53 and the additional device 54.

After the software of the CPU 32 is changed, the CPU 32 is put into the operating state, and
Is switched to the standby state. Then, C in standby state
The software used for the operation of the PU 31 is changed.

[0022]

According to the present invention, it is possible to realize a centralized monitoring and control device capable of changing the software of the central processing unit while the operation state of each device is displayed on the system board device.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... System board device 2A, 2B ... Data bus 8 ... Display 9 ... Printer 31, 32 ... Central processing unit 41, 42 ... Remote monitoring control device master station 51-54 ... Remote monitoring control device slave station 61-64 ... Relay Panels 71 to 74 Controlled equipment 101 Direct memory access 102, 104 Interface 103 Calculation unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H02J 3/00-5/00 H02J 13/00-13/00 311 G06F 17/60

Claims (1)

(57) [Claims] 1. A system board device for controlling or monitoring the operation states of a plurality of devices, and at least two systems for processing control signals sent from the system board device to the plurality of devices and data sent from the plurality of devices. The first and second central processing units, and when the software used for the calculation of the central processing unit is changed by adding equipment controlled or monitored by the system board device, the existing The data sent from the equipment is processed by one of the first central processing units, and the data of the equipment to be added is processed by the other second central processing unit and supplied to the system board unit. A centralized monitoring and control device for changing software used in the second central processing unit.