JPS6359741A - Simulation tester for system monitor - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is applied to a simulation test device for a power system monitoring device, particularly when remotely monitoring and controlling power system equipment using a computer system. This invention relates to a simulation test device for system monitoring equipment.

(Prior Art) In recent years, the configuration of power systems has become increasingly complex as the demand for electric power increases. Therefore, even when power systems are monitored using computer systems, the areas to be monitored are expanding and becoming more complex. As one of the computer system devices for macroscopic monitoring of all these systems,
Grid monitoring equipment is used.

FIG. 3 shows the basic configuration of a computer system that performs remote monitoring and control of an electric power system. As shown in the figure, the computer system 1 includes a computer 2, a display section 3, an information transmission device 4, and a display 5.

Further, the display unit 3 includes a display output device 301 and a DHA device 30.
System monitoring device interface unit 30 consisting of 2
and is connected to the grid monitoring equipment.

Information from the power system equipment 6 is input through the information transmission device 4, and the computer 2 that receives this edits the output information to the display output device 301 among the input information as data for the system monitoring device. , is stored in the DMA area on the computer's internal memory.

Note that the DMA area is a dedicated area from which the DMA device retrieves data. The display output device 301 takes in information stored in the DMA area on the computer memory via the DH^ device 302, and based on this information, the system monitoring device 3
Outputs the status of power system equipment to 1.

(Problems to be Solved by the Invention) As described above, in this type of system, it is necessary to match the system monitoring device and the computer when developing the computer system.

Therefore, at the matching stage, a system monitoring device is indispensable, but for the following reasons, it has become extremely difficult to connect the system monitoring device to a computer and conduct a test.

■Many system monitoring devices are large, making it difficult to secure installation space at system test sites.

■Since grid monitoring equipment is not necessarily complete at the time of computer system development, it is often impossible to connect it during testing.

In other words, when developing a computer system, if the system monitoring device and computer are not connected, unit testing of software will be performed by directly checking the status of the output to the system monitoring device and the status of the DNA area in memory. , test efficiency is poor.

Furthermore, since sufficient tests cannot be conducted at the system testing laboratory, problems such as a decline in quality arise.

Furthermore, as on-site testing becomes more important, problems such as increased costs due to prolonged on-site work also arise.

The present invention has been made to solve the above problems, and provides a system monitoring device that can efficiently perform software tests related to the system monitoring device even when the system monitoring device is not connected to a computer system. The purpose is to provide a mock test device.

[Structure of the Invention] (Means for Solving the Problems) In the present invention, various kinds of power system equipment information are taken out from the memory in the computer at regular intervals, and the current detection state and the previous detection state are compared. If there is a difference between them, the information that appears on the system monitoring device is configured to be output and displayed on peripheral devices.

(Operation) Therefore, if there is no abnormality in the power system equipment information stored in the memory in the computer, even if it is retrieved and compared at regular intervals, it will match and there will be no display output. However, if an abnormality occurs in the equipment information after a predetermined period of time, a difference will occur in the comparison results, and this will be output and displayed on the peripheral device.

(Example) Examples will be described below with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of a simulation test apparatus according to the present invention. This embodiment is comprised of a computer 2, an information transmission device 4 that sends power system equipment information to the computer, and peripheral devices 7 such as a CRT device.

Note that 2-1 is a DMA area within the computer. The power system equipment information sent from the information transmission device 4 is monitored within the computer 2, and the information is edited and stored in the D)IA area on the memory within the computer. The processing within the computer monitors only the system monitoring device data among the stored information, and outputs the content of the status change to the peripheral device 7 when a status change occurs.

FIG. 2 is a flowchart explaining the processing contents,
This will explain the series of operations.

First, when the program of this test device is started from a console typewriter or the like, it starts monitoring the system monitoring data.

In step S1, all of the system monitoring device data in the DMA area on the memory of the computer is imported into the program area. Immediately after startup, there is no previous value to compare, so the process of importing data into the area within the program is delayed in step S2. After a certain time delay (because it is connected for a certain period of time, the grid monitoring data may have changed), in step S3, the grid monitoring data in the DMA area on the computer's memory is imported one by one again. , in step S4, the information is compared with the information of the area within the program that was captured last time, that is, with the previous value.

As a result of this comparison, if the previous value and current value are different, it is determined that there has been a change in condition, and the process moves to step S5 to output the contents of the condition to the peripheral device, and at the same time, step S6
The information of the area in the program that was imported last time is updated to the current value. In step S7, steps 83 to 83 described above are performed.
The process of step S6 is repeated until all the system monitoring data have been compared.

If the previous value and current value match in step S4, the process moves to step S7 and the above operation is repeated. In step S1, when the comparison of all system monitoring device data is completed, the process moves to step S8 to determine whether there is an instruction to end the test, and if not, returns to step S2.
The series of processes described above are repeated.

According to the above-mentioned embodiment, almost all tests except the interface test between the computer and the system monitoring device related hardware can be performed, and it is possible to significantly improve the test efficiency and the quality of the software.

Note that the peripheral device is not limited to a CRT device, but may also be a typewriter, line printer, or any other device.

In addition, although the above embodiment has been described with respect to a system monitoring device for an electric power system, it is not limited to this, and may be used for monitoring the status from a macroscopic level, such as centralized monitoring of a plant, monitoring of train operation status of a railway, etc. For example, a simulation similar to that described above is possible.

[Effects of the Invention] As explained above (according to the present invention, data to be output to the system monitoring device stored in the memory of a computer is retrieved at regular intervals, and the previous value and current value are compared, thereby controlling the system monitoring device). Since it is configured to simulate using software, software tests related to the system monitoring device can be performed efficiently and freely even when the system monitoring device is not connected.

As a result, even if the system monitoring device is not completed at the time of computer system development, sufficient testing can be performed at the system testing site, making it possible to improve the quality and testing efficiency of the computer system.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of a simulation test device for a system monitoring device according to the present invention, Fig. 2 is a flowchart showing processing contents, and Fig. 3 is the basics of a calculation-like system that performs remote monitoring and control of an electric power system. FIG. 1... Computer system 2... Computer 3...
・Display section 30...System monitoring device interface unit 31
...System monitoring device

Claims (1)

[Claims] In a computer system that inputs power system equipment information and outputs this information to a system monitoring device via software, various types of power system equipment information are retrieved from the memory in the computer at regular intervals, and the current detection state and previous detection state are recorded. A simulation test device for a system monitoring device, characterized in that information appearing on the system monitoring device when there is a difference is output and displayed on a peripheral device by comparing the two.