JPH0498998A - Centralized monitor control system and system adjustment method - Google Patents

Abstract

PURPOSE:To allow the system adjustment between a remote controlled device and a computer of central monitor control to be implemented from a system adjustment device in connection with the computer by providing a setting value revision circuit revising a setting value in response to a command from the central system adjustment device to the system. CONSTITUTION:Each controlled device is provided with a storage circuit 11 storing maintenance data such as an error data, a power voltage and a transmission reception level and a setting value revision circuit 12 revising a setting value. Moreover, a computer 7 applying monitor control centralizingly to the controlled device 10 is provided with a maintenance interface 13 and a system adjustment device 15 via a communication line 14. A desired maintenance data for adjustment or the like is commanded from the system adjustment device 15. The computer 7 sends the command data to the controlled device 10 via an object remote monitor controller 4 and a transmission line 3.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides centralized monitoring and control for centrally monitoring and controlling controlled devices installed on the field equipment side via a remote-oriented control device. The present invention relates to a system and a method for adjusting the system.

(Prior Art) For example, field equipment at controlled stations such as a plurality of remote substations are remotely monitored and controlled from a single control station. A configuration diagram of a conventional centralized monitoring and control system is shown in FIG. Controlled devices 2 are installed on the side of field equipment (hereinafter referred to as actual equipment) 1 of substations A and B, and these controlled devices 2 are connected to remote monitoring and control equipment 4 of the control center via transmission lines 3. is connected to. At the control center, the remote monitoring and control device 4 inputs and outputs transmission/reception signals to the remote substations connected via the system bus 5 and the input/output interface 6 to the computer 7 for centralized monitoring and control, and sends them to the control device 8 and the monitoring device. It is connected to 9. In this way, in order to monitor and control the remote device 1 without error, it is necessary to make system adjustments such as checking the transmission system and checking the signal level.

Next, an example of system adjustment will be explained. For transmission maintenance between the remote monitoring and control device 4 and the controlled device 2, maintenance personnel are stationed at each installation location of the control center and substation, and in the case of downlink commands, the control commands from the control bag W8 are transferred to the computer 7. Input/output interface 6, system bus 5, remote monitoring control device 4
The output of the 8-power terminal of the corresponding controlled device 2 was checked via the transmission line 3 to see if it was normal or abnormal. Similarly, in the case of uplink commands, maintenance personnel are placed at each installation location and
The monitoring command applied from the input terminal of the controller is sent to the transmission line 3, the remote monitoring control device 4, the system bus S, the input/output interface 6, and the computer 7 to check whether the display of the monitoring device 9, meter, etc. is normal or abnormal. was.

Furthermore, when a failure occurs in the controlled device 2 installed in a substation, it is necessary to confirm the failure using an LED display on a printed circuit board within the controlled device 2 in order to perform a failure analysis.

In addition, changes in the set value of the controlled device 2, such as scale conversion and level setting, are performed using a measuring instrument or by replacing the ROM on the printed circuit board.

(Problem to be solved by the invention) In recent years, as electric power systems have become larger and more complex, the number of centralized monitoring and control systems has increased, electrical plant equipment has been changed frequently, and the need for troubleshooting and maintenance has increased. . Therefore, in the event of a failure, maintenance personnel must go to the location where the controlled device 3!1 is located and check the failure indication (LED display) on the printed circuit board inside the controlled device, and the power will be turned off until the failure is analyzed and the system is restored. The facility equipment was unable to operate normally for a long time.

Furthermore, the above-mentioned transmission system adjustment method requires a large number of maintenance personnel.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a centralized monitoring and control system and a method for adjusting the system, which can centrally manage the system adjustment of a controlled device installed at a remote location and quickly recover from a failure.

[Structure of the invention]

(Means and operations for solving all!!) The centralized monitoring control system of the present invention connects a system adjustment device to a computer that centrally monitors remote controlled devices. This system adjustment device stores, changes and displays maintenance data of remote controlled devices. The controlled device includes a storage circuit that stores maintenance data for adjustment, and a set value changing circuit that changes the set value in response to a command from a central system adjustment device.

As a result, system adjustment between a remote controlled device and a computer for centralized monitoring and control can be performed centrally from the system adjustment device linked to this computer.

(Example) An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram of a centralized monitoring and control system of the present invention. In FIG. 1, circuits, devices, etc. that are equivalent to those in FIG. 3 are given the same symbols. The centralized monitoring control system of the present invention stores error data (telemeter input abnormality, ROM write error, reception level drop, constant mark error, system bus error, etc.), power supply voltage value, transmission/reception level value, etc. in each controlled device tlO. Memory circuit 11 for storing maintenance data
A setting value changing circuit 12 is provided for changing the setting value (scale conversion of telemeter value, setting of level value, calibration of power supply voltage value, etc.). FIG. 2 is a configuration diagram of the controlled device 10 of the present invention. The setting value change circuit 12 inputs the setting value change command code (change data) received via the transmission line 3 and converts it into a changed setting value of the setting value to be changed, and the setting value conversion circuit 20 inputs the setting value change command code (change data) received via the transmission line 3 and converts it into a changed setting value of the setting value to be changed, An input/output conversion circuit 2I that inputs values via an optical communication circuit and an optical cable ○P, a set value from this input/output conversion circuit 2I, and a set value conversion circuit 2.
It includes a comparison circuit 22 that compares the set value from 0 and outputs the difference, and a calibration circuit 23 that calibrates the set value of the actual device 1 to a changed set value according to this difference.

In addition, system control is performed via the maintenance interface 13 and communication line 14 to the computer 7 that centrally monitors and controls the controlled devices 10. A device 15 is provided.

As shown in FIG. 3, the system adjustment device 15 includes a storage section 16 that stores the maintenance data of the controlled device IO that is imported from the computer 7, and a conversion section 17 that converts the sent data into a code conforming to the transmission format. , a display section 18 for displaying the converted data for adjustment, failure recovery support, failure analysis, and preventive diagnosis, and an input section 19 for inputting setting value changes and the like.

Next, desired maintenance data is commanded from the input unit 19 of the system adjustment device 15 for adjustment, etc. described in 5 below regarding the system adjustment method. This command data is converted by a code converter 17 that conforms to the transmission format, and is transmitted to the maintenance interface 13 via the communication line 14. The computer 7 input from the interface 13 via the system hash 5 follows this command data and controls the target remote monitoring and control device 4. Controlled device ■0 via transmission line 3
to be transmitted. In accordance with this command data, the controlled device 10 converts the maintenance data stored in the storage circuit 11 or the setting value of the actual device 1 into upstream data (monitoring signal 9).
The data is transmitted to the computer 7 via the transmission line 3 and the remote monitoring and control device 4. The maintenance data taken into this computer 7 is transferred to the interface 13 and the conversion unit 17.
displayed on the display unit 18 of the system adjustment device 15 via
Make adjustments, etc.

When changing the setting value by adjustment or the like, change data for identifying the change target and the changed setting value is commanded from the input unit 19 of the system adjustment device 15. As in the case of the maintenance data described above, the computer 7 transmits the maintenance data to the controlled device 0 via the target remote monitoring control bag @ 4 and the transmission line 3 in accordance with the command. In the controlled device +0, this change data is demodulated into a changed setting value by the setting value conversion circuit 20 and input to the comparison circuit 22, while the current setting value of the actual device 1, which is the object of this change, is demodulated into a changed setting value by the setting value conversion circuit 20. It is input to the comparison circuit 22. Then, the comparison circuit 22 outputs the difference between these set values, and the calibration circuit 23 changes the set value of the actual device 1 to a changed set value by changing the scale, adjusting the attenuator, etc. according to this difference.

Therefore, according to this embodiment, system adjustment can be centrally managed by linking to the central monitoring and control computer 7, and it is possible to quickly respond to the occurrence of malfunctions, as well as to provide recovery support, failure analysis, and preventive diagnosis. It becomes possible. Also,
By linking to computers in the central monitoring and control center via communication lines, maintenance can be performed from a remote location (such as a factory or other location where system adjustment engineers are present).

Furthermore, since the return data is monitored by the system adjustment device, the control center equipment, transmission lines, and controlled devices can be adjusted comprehensively, improving the accuracy of the entire system and making adjustment possible in a short time.

In this embodiment, an example is shown in which an optical cable is used to transfer the number by pulse.

〔Effect of the invention〕

As described above, the present invention enables system adjustment to be centrally managed by linking the System 5I adjustment device to a centralized monitoring and control system, and system adjustment can be performed promptly without dispatching maintenance personnel to a distant control center. It becomes possible.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of the centralized monitoring control system of the present invention, Fig. 2
3 is a block diagram of a controlled device of the present invention, FIG. 3 is a block diagram of a system adjustment device of the present invention, and FIG. 4 is a block diagram of a conventional centralized monitoring control system. 1... Field equipment (actual equipment) 2.1 (1... Controlled device 3... Transmission line 4... Remote monitoring and control device 7... Computer 11... Memory circuit 12...
- Setting value changing circuit 13 - Maintenance interface 14... Communication line 15 - System adjustment device 16... Storage section 17... Conversion section - Display section 19... Input section 20... Setting value conversion circuit input/output conversion circuit 22・Comparison circuit・Calibration circuit

Claims (4)

[Claims] (1) A plurality of controlled devices that control field equipment installed at a remote controlled station, and these controlled devices are connected to the control center via a transmission line and a remote monitoring and control device to transmit monitoring and control signals. In a centralized monitoring control system consisting of a computer that transmits, receives and monitors and controls, the computer is linked with the computer via a communication line to import maintenance data from the controlled device,
A centralized monitoring control system comprising a system adjustment device that changes and displays desired data. (2) The system adjustment device includes an input section for instructing data to be adjusted for a desired controlled device, a storage section for storing maintenance data from the controlled device, and a storage section for storing return data instructed by the input section. 2. The centralized monitoring control system according to claim 1, further comprising a display section for displaying the information. (3) The intensive monitoring according to claim 1, wherein the controlled device includes a storage circuit that stores maintenance data, and a set value changing circuit that changes the set value according to a command from the system adjustment device. control system. (4) A system adjustment device is linked via a communication line to a computer that centrally monitors and controls a remote controlled station, a desired controlled device is selected from this system adjustment device, and a callback is made from the selected controlled device. 1. A system adjustment method for a centralized monitoring control system, comprising storing and displaying data on a centralized monitoring system adjustment device via the computer.