JPS6126977Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a CRT (cathode ray tube) monitoring and control device, and in particular, the device is connected to a CRT (cathode ray tube) for each slave station by means of a display input signal inputted from an information transmission unit to target equipment to be remotely monitored and controlled. The present invention relates to a CRT monitoring and control device having a function of displaying a system diagram and a function of outputting a specified target device from the CRT to a specified slave station as a control output signal via the information transmission unit.

Conventionally, remote monitoring and control equipment has been widely used for the monitoring and control of power generation and substations located at regionally remote locations in the power system, and it is possible to combine this with a central control computer and use a CRT as a monitoring display. Furthermore, it has also been adopted to use a CRT to provide selection operation instructions for devices to be controlled. The system diagram of equipment that is subject to these monitoring and control is stored in the memory (storage device) of the electronic computer, and is used to identify equipment to be controlled and slave stations (hereinafter, the central control center is referred to as the master station, and the controlled stations are referred to as slave stations). ) was dealt with by rewriting the memory within the computer in the form of program or table changes. However, since the addition of memory associated with these new expansions involves directly changing the memory in the computer, it not only involves stopping the operation of the equipment itself, but also requires modifications and additions by experienced manufacturing personnel. As a result, continuous operation of the device was impossible, and a huge amount of work was required for correction, which was an inconvenience.

The present invention provides a CRT monitoring and control device that eliminates the above-mentioned disadvantages of the prior art, ensures continuous operation of the device, and at the same time allows memory to be easily added interactively without destroying other components. The purpose is to

The features of this invention are, in order to achieve the above objectives,
Two series of CRT monitoring and control devices are arranged side by side, and in addition to the storage device that stores the CRT display system diagram in advance in each series, there is an auxiliary memory shared between the two series.
When installing a storage device and modifying the contents of both storage devices in accordance with the addition of controlled devices and slave stations, you can use the system diagram work area of the non-control side system to make corrections for that system at the same time. is also written to the auxiliary storage device, and correction writing to other series is performed by reading out online from the auxiliary storage device.

The present invention will be explained below with reference to the drawings.

FIG. 1 shows a general configuration diagram of a master station device according to the present invention. In FIG. 1, reference numeral 1 denotes an information transmission device corresponding to each slave station, each of which includes a reception control device 2 and a transmission control device 3. 11 is a main CRT monitoring and controlling device of the two CRT monitoring and controlling devices arranged side by side, and 12 is a slave CRT monitoring and controlling device, each of which consists of 4 to 10 devices described below.
4 is a display input device, 5 is a control output device, 6 is a monitoring control device, 7 is a CRT display device, 8 is a memory, 9
1 is a display input device, and 10 is a control output signal.

The information transmission device 1 receives the upstream signal as bit-serial information, and the reception control device 2 converts it into serial/parallel information to produce a word-serial display input signal 9.
It is sent to the display input device 4 as This display input device 4 constantly obtains the bit status of the slave stations by scanning the information transmission device 1 for each target slave station, and the supervisory control device 6 detects the status and changes based on the information from the display input device 4. CRT according to the station selection request.
It is possible to display the device status on the display device 7, and also store the device status and change status in the memory 8 which stores the CRT system diagram in advance. Also, the monitoring and control device 6 uses the CRT display device 7 to send out a selection signal for the specified slave station equipment, and this selection signal is sent to the control output device 5 to select the information transmission device 1 of the specified slave station. The control output signal 10 is sent to the transmission control unit 3 of the information transmission device 1 as a word serial signal.

The present invention is based on a master and slave system with two lines installed in parallel as described above.
In the CRT monitoring and control devices 11 and 12, the memory 8 that stores the system diagram and its functional processing is kept in an equivalent state at all times as target slave stations and target devices are added, and the monitor and control functions of all slave stations are maintained. This provides a memory modification method that enables continuous operation at all times without stopping even temporarily.

FIGS. 2, 3, and 4 show the flow of arrangement and modification of the system diagram memory according to the present invention. 21 to 24 respectively indicate the No. 1 station, No. 2 station, No. 3 station, and No. n station of the system diagram memory CRT format, 25 is the work area of the system diagram memory, and 26
indicates a memory protect area, and 27 to 29 each indicate a transfer direction. The system diagram memory is sequentially arranged as CRT format No. 1 station area 21, No. 2 station area 22, No. 3 station area 23, . . . , and continues with No. n station area 24.
When changes or additions occur to this CRT format memory due to the addition of target slave stations, the data is transferred to the system diagram memory work area 25 without directly writing to or reading from this memory. This work area is used to perform writing and reading processes for changing and adding CRT formats. The memory area arranged in this way contains all the information necessary for monitoring and controlling the CRT, such as registration of slave station positions for monitoring and controlling the slave stations, corresponding positions for displaying numerical data on the CRT, and multiplication factors. It is something that

Memory modification is performed as follows. In FIG. 2, for example, when a modification occurs in the CRT format memory No. 2 station area 22, the data is first transferred to the system diagram memory work area 25. 27 indicates the memory transfer direction in that case. In this case, the system diagram memories 21 to 24 are operated as a protect area 26 for memory protection. Subsequently, in FIG. 3, corrections are made in the system diagram memory work area 25. 28 is the memory transfer direction in that case. Next, in FIG. 4, from the above-mentioned system diagram memory work area 25 after memory correction, the CRT
The modified memory contents are transferred to the format No. 2 station area 22. 29 indicates the transfer direction in that case. The system diagram memories 21 to 24 are operated as a protected area 26 for memory protection, as shown in FIG. 4, with the protection open, and after the transfer is completed, they are returned to the initial protected state as shown in the protected area 26 of FIG. make it work.

Next, in the present invention, there is no transfer between the memories between the two series, the data is transferred to another auxiliary storage device, and then read offline from this auxiliary storage device to the other series. To ensure consistency of contents and at the same time enable monitoring control operation in at least one of the series.
This will be explained using the flowchart of FIG. Figure 5〓〓〓〓
In one series, by operating the auxiliary storage device write start 31, it is determined that the own series is not performing control at all, that is, the all-station non-control confirmation determination 32 is performed, and confirmation monitoring is performed on the CRT. Then, the relevant slave station is displayed, that is, the relevant station selection display 33 is displayed, and at the same time, the relevant station system diagram display 34 is displayed on the CRT. Furthermore, this system diagram memory is written 35 to the auxiliary storage device 41.

On the other hand, on the other system side, the auxiliary storage device 41
Then read from. That is, from the operation of the auxiliary storage device read start 36, the all-station non-control confirmation judgment 37 is performed so that the own system is not performing any control at all, that is, all-station control is returned to the other system before reading the auxiliary storage device, In order to monitor the reading confirmation on the CRT, the corresponding slave station is displayed, that is, the station selection display 38 and the station system diagram display 39 is displayed on the CRT. Furthermore, reading 40 is performed from the auxiliary storage device 41 into this system diagram memory. The reading method is performed by storing in the system diagram memory work area 25 shown in FIG.

Both the main series and subordinate series are stored in the system diagram memory at the specified location.
To return to CRT format memory, the fourth
As shown in the figure, the memory protect area 26 is temporarily released and the contents of the work area 25 are transferred to a predetermined CRT format memory No. 2 station 22.

According to the present invention, it becomes possible to operate the device continuously and to easily add memory interactively.

[Brief explanation of the drawing]

Figure 1 is a general configuration diagram of the device of the present invention, Figures 2, 3, and 4 are diagrams explaining the flow of arrangement and modification of the system diagram memory in the present invention, and Figure 5 is the system diagram in the present invention. FIG. 2 is a flowchart illustrating adding contents to a memory. FIG. 1... Information transmission device, 2... Reception control device, 3
...Transmission control device, 4...Display input device, 5...
Control output device, 6... Monitoring control device, 7...
CRT display device, 8...Memory, 11...Main CRT
Monitoring control device, 12... slave CRT monitoring control device,
21-24...System diagram memory CRT format
No.1 station to No.n station, 25...System diagram memory work area, 26...Memory protect area, 31...
...Start writing to auxiliary storage device, 32...Determine whether all stations are uncontrolled, 33...Instruct to select the station, 34...Display the system diagram of the station, 35...Write to auxiliary storage device,
36...Auxiliary storage device reading start, 37...All stations non-control confirmation judgment, 38...Instruction to select the relevant station, 39
...Display the relevant station system diagram, 40... Read the auxiliary storage device, 41... Auxiliary storage device. 〓〓〓〓

Claims (1)

[Scope of utility model registration request] A function that displays the target equipment to be remotely monitored and controlled in a system diagram on a CRT (cathode ray tube) for each slave station using a display input signal input from the information transmission unit, and a function that displays the target equipment specified from the above CRT on the above information transmission unit. A CRT monitoring and control device having a function of outputting a control output signal to a designated slave station via is a separately provided auxiliary storage device shared by two systems, a means for modifying the system using a system diagram work area of a storage device of another system in accordance with a change in the device to be controlled, and the content of the modification. A CRT monitoring and control device comprising: means for writing into the auxiliary storage device.