JPH0336477B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a remote monitoring and control device simulator, particularly to two types of monitored and controlled equipment installed in an electric power system.
This invention relates to a remote monitoring and control device simulator that simulates value information and numerical information.

[Technical background of the invention]

In a centralized monitoring and control system centered on a computer, a remote monitoring and control device (hereinafter referred to as TC)
transmits the status of monitored and controlled equipment installed at a distance as on/off information (hereinafter referred to as binary information) or numerical information, and provides it as computer monitoring information, as well as transmits information from the computer. Selection control information is transmitted as downstream information to the monitored control equipment, and the equipment is actually turned on, turned off, or increased.
This is an indispensable device for controlling ``reduction.'' Based on the binary information and numerical information from the control device transmitted by the TC, the computer performs processing to realize the specified function and sends a selected control signal to the controlled device. , displays various log reports, prints out, and issues alarms.

In order to realize these computer functions, it is necessary to create programs, and in order to debug and test these programs, the TC that is actually used is connected to the computer, and the monitored and controlled equipment is There is a way to simulate this using a switch, etc. To do this, complete the TC manufacturing test before debugging the program and starting the test, and connect switches etc. that simulate the monitored and controlled equipment.
Must be connected to a computer.
Also, if the TC is a new product, it is possible to connect it, but in reality, many are already installed and in operation. In such cases, it is impossible to connect the TC to a computer for debugging and testing. In addition, when functions are added or changed in a centralized monitoring and control system that uses a computer that is already in operation, and the program needs to be modified or added, we can debug and test using the TC that is actually in operation. Doing so is undesirable from a safety point of view, as it not only makes it impossible to monitor and control the monitored and controlled equipment during that period, but also causes accidents due to erroneous signals.

In order to solve these problems, a remote monitoring and control device simulator (hereinafter referred to as TC simulator) has traditionally been created, connected to a computer, and used for program debugging and testing. An example of a TC simulator will be described below based on the drawings.

FIG. 1 is a block diagram of a conventional TC simulator. In Figure 1, 1 is an electronic computer;
2 is a TC simulator, and a cable 3 connects between them. 4 is siyashi;
It has an input/output interface 41 and a group of single-function simulator boards 42. 421 is a control code generator, 422 is a plurality of switch boards, and 42n is a plurality of switch setting boards. Here, the computer 1 is connected to a central processing unit (CPU) 11 and an input/output interface 12 such as a process output device or a direct memory access device that inputs and outputs output signals from the computer 1 or signals from the TC simulator 2. configured. In addition, the input/output interface 41 of the chassis 4 is a model and serial/parallel converter for inputting signals from the input/output interface 12 and input/output signals from the single-function simulator board group 42 to the computer 1 . It consists of equipment, etc. Furthermore, the input/output interface 41 of the chassis 4 has a minimum configuration of connectors 411, 4 corresponding to the type of simulation board.
It is divided into functional units 12 to 41n, to which corresponding single-function simulator boards of the simulator board group 42 are connected.

Therefore, the control signal from the computer 1 is converted into an external output signal by the input/output interface 12 and sent to a corresponding connector of the input/output interface 41 of the TC simulator 2, for example 411.
is input. The control signal is then delivered to the control code generator board 421 of the simulator board group 42 corresponding to the control signal. The control code generator board 421 decodes the received control code and outputs it as an "on" or "off" control signal for the corresponding switch board 422. That is, when the switch board 422 receives a control signal, it operates the switch according to the control direction. Next, the operating state of the switch board 422 is as follows.
TC simulator 2 input/output interface 4
1 to a corresponding connector, for example 412, and further input to the CPU 11 via the input/output interface 12 of the computer 1 through the cable 3. This simulates TC selection control and its response.

On the other hand, each binary and numerical simulation information from the TC simulator side is operated by the operator on the corresponding single-function simulator board group. And this operation signal is applied to the corresponding input/output interface 4.
1, for example, 41n, and is further input to cable 3.
The code is converted into an internal code by the input/output interface 12 of the computer 1 and input to the CPU 11 via the input/output interface 12 of the computer 1 .

[Problems with background technology]

In the conventional device described above, a TC simulator is formed by combining a group of single-function simulator boards 42 and incorporating them into the chassis 4 to simulate a TC. However, as the number of TCs to be simulated increases, Indeed, as the number of types increases, a greater variety of single-function simulator board groups 42 and chassis 4 must be prepared. In addition, if a TC with new functions is developed, it is necessary to develop the single-function simulator board group 42, chassis 4, and input/output interfaces 12, 41 accordingly, which reduces costs from a storage management perspective. It is time-consuming both in terms of transportation and assembly.

[Purpose of the invention]

The present invention has been made to solve the above problems, and its purpose is to provide a simple and efficient remote monitoring and control device simulator.

[Summary of the invention]

In the present invention, instead of providing an individual single-function simulator board as a TC simulator, a screen display device with a screen instruction device such as a light pen or a touch screen method and a keyboard, such as a CRT display device, is provided. Simulating binary information by instructing a switch figure formed on the screen using a screen instruction device,
Further, numerical information can be simulated using the keyboard.

[Embodiments of the invention]

Examples will be described below with reference to the drawings. FIG. 2 is a block diagram of an embodiment of the TC simulator according to the present invention. In FIG. 2, the electronic computer 1 is
Consists of a CPU 11, a signal switching device, a TC simulation package 14, a TC simulation file 15, an input/output interface 16 for CRT, and an input/output interface 12 for connecting to the TC during operation. . In addition, the TC simulator 2 has an input/output interface 21, a CRT
Control device 22, CRT display 23, light pen 2
4 and a keyboard 25. Here, the signal switching device 13 has a switching function between an operation mode and a simulation mode. If it is in operation mode, input/output interface 1
2, this input/output interface 12
It is connected to the TC via the TC for normal operation.

On the other hand, if you set it to simulation mode,
It is connected to the TC simulation package 14 side, and further connected to the CRT display 23 via the CRT input/output interface 16, the input/output interface 21 of the TC simulator 2, and the CRT control device 22. The TC simulation file 15 contains the TC transmission format to be simulated,
The information necessary to simulate TC, such as the transmission method such as the transmission speed, the amount of uplink information such as binary information and numerical information, and the amount of downlink information, is stored in advance on the film. Based on the TC simulation file 15 described above, the TC simulation package 14 analyzes the TC to be simulated for binary information simulation switch figures, numerical information, simulation data, etc.
Create display data according to the amount of upstream information.
A function to transfer the information to the input/output interface 16 for CRT, a function to invert the binary information corresponding to the position indicated by the light pen 24 and input it to the CPU 11 via the signal switching device 13, and a function to input the binary information to the CPU 11 via the signal switching device 13. A function to read the set numerical data and input it as numerical simulation information to the CPU 11 via the signal switching device 13, and to decode and respond to the selection control code passed from the CPU 11 via the signal switching device 13. Create TC selection completion information, invert the corresponding binary information in the control instruction direction, and the corresponding selected measurement numerical information on the TC side, input it to the CPU 11 via the signal switching device 13, and input it to the CPU 11 via the signal switching device 13. It also has the function of passing data to the input/output interface 16.

FIG. 3 is a flowchart for explaining the operation, and shows the flow of selection control codes from the CPU 1 .
First, in step 31, it is determined whether or not the signal switching device 13 has been switched to simulation mode. If it is in simulation mode, step 31 is performed.
Move to 32. Here, the passed selection control code is decoded, corresponding selection completion information, information inverted in the control instruction direction of the corresponding binary information, and numerical information of the corresponding selection measurement are created, and the signal switching device 1
By inputting to CPU11 via 3,
The response of the selection control code sent from the CPU 11 is simulated.

In addition, the created binary inversion information and numerical information are
The data is delivered to the CRT input/output interface 16, edited as display data, and delivered to the CRT control device 22 via the cable 3 and further via the input/output interface 21 of the TC simulator 2. The CRT control device 22 converts the received display data into a display output code and displays it at a corresponding position on the CRT display 23, thereby simulating an external display of the operating state of the selected controlled device. If it is determined in step 31 that the mode is not simulation mode, the process moves to step 33 and the CPU 1
The selection control code sent from TC 1 is passed to the original TC via input/output interface 12,
This is an operation mode in which the actual device that is the selected controlled device is selectively controlled.

FIG. 4 is a flowchart for explaining the operation, and shows the flow of signals from the TC simulator 2 side. That is, binary information from the TC simulator 2 side,
When simulating numerical information, etc., it is determined in step 41 whether the signal switching device 13 is in the simulation mode. If this is the simulation mode, proceed to step 42. Here T.C.
It is determined whether the simulation from the simulator 2 side is an instruction from the light pen 24 or an input instruction from the keyboard 25. If this is an instruction from the light pen 24, the process moves to step 43, and it is further determined based on the instruction position received from the light pen 24 whether or not it is an instruction to invert binary information. If this is an instruction to invert binary information, the process moves to step 44, where the state of the binary information displayed at the indicated position passed from the light pen 24 is read, and the inverted 2-value information is read.
Create value simulation information and pass it to the CPU 11. If the instruction is to read from the keyboard 25 in step 45, the numerical value input from the keyboard 25 is read, and in step 46, the TC simulation file 15 converts it into the format specified as the delivery format, integer or real number. Create numerical simulation information and pass it to CPU11.

Note that if the signal switching device 13 is not in the simulation mode, or if there is no light pen instruction or keyboard input instruction, the simulation information is not created.

As described above, the binary information and numerical information that are uplink information of the TC and the response operation of the selected controlled device after sending the selection control code that is downlink information are simulated.

In the above embodiment, the light pen and CRT display device with keyboard used as the TC simulator are not specially configured for the TC simulator, but are one of the peripheral devices for man-machine communication. It is sufficient to use a CRT display device with a light pen and a keyboard, which are commonly used as a light pen. Such a CRT display device with a light pen and a keyboard has become indispensable for man-machine communication in recent electronic computer systems, and is used as a signal switching device 13 and a TC simulation file. 15. By incorporating the TC simulation package 14, it can be easily used as a TC simulator.

Furthermore, the signal switching device 13, the TC simulation file 15, and the TC simulation package 14 are software of the computer 1 , and the TC
If developed as simulation software, it can be effectively used as a TC simulator for similar computer systems.

In addition to the light pen method, the screen instruction device may also be a so-called touch screen method in which the examiner presses a CRT screen with his or her finger.

〔Effect of the invention〕

As explained above, according to the present invention, the TC simulator is configured to be simulated by a screen display device with a light pen and a keyboard, so there is no need for a wide variety of single-function simulator boards, and moreover, new functions are provided. Even if a TC is developed, there is no need to develop and create a corresponding single-function simulator board, chassis, input/output interface, etc., and it can be handled simply by changing the TC simulation software. Furthermore, since it is software, there is no need for storage management or storage space, and transportation and installation are extremely easy.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a conventional TC simulator, Fig. 2 is a block diagram of an embodiment of a TC simulator according to the present invention, and Fig. 3 is a flowchart for explaining the operation. Shows the signal flow. FIG. 4 is a flowchart for explaining the operation, and shows the flow of signals from the TC simulator side. 1 ...Electronic computer, 2...TC simulator,
3...cable, 4...sear sea, 11...
CPU, 12, 16, 21, 41...I/O interface, 13...Signal switching device, 14...
TC simulation package cage, 15...TC simulation file, 22...CRT control device, 23...CRT display, 24...light pen,
25...Keyboard, 421...Control code generator, 422...Switch board, 42n...
Switch setting board.

Claims (1)

[Claims] 1. On/off information and numerical information from a controlled device connected to the power system are used as upstream information, and control information from a computer in a control center is used as downstream information to simulate a controlled device. In a remote monitoring and control device simulator with a computer at its core, when a selection control code is sent from the computer, uplink information from the controlled device is displayed in a simulated manner on a screen display device, and uplink information corresponding to the downlink information is displayed in a simulated manner. If the information is on/off information, use the screen instruction device to invert the on/off information simulated switch graphic code and send it back; if the information is numerical information, use the numerical input means to input the numerical value. A remote monitoring and control device simulator that can be configured and sent back.