Method for automatically testing single board of protective relay device
A relay protection device and automatic test technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve problems such as not allowing modification of operating programs, upgrading automatic test programs, and troublesome management, so as to improve detection efficiency and test Consistent effect and efficiency-enhancing effect
Active Publication Date: 2014-02-05
BEIJING SIFANG JIBAO AUTOMATION +1
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Problems solved by technology
[0005] Of course, using an independent automatic test program can detect some abnormal problems in the running process, but there are also many inconveniences:
[0006] 1. It brings additional processes to production, and the program needs to be re-downloaded after the test is completed
[0007] 2. When the peripherals are changed or the test method is upgraded, the automatic test program needs to be upgraded, which brings trouble to the management
[0008] 3. In the normal operation of the equipment, since it is generally not allowed to modify the running program during regular testing, only the self-test function of the protected application program can be used for testing. Based on security considerations, these tests are generally better than special automatic testing programs. Few functions, or not thorough enough
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[0030] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0031] attached figure 1 It is a flow chart of the method of the present invention. The veneer to be tested is connected by the backplane CAN bus, and can also be networked through an Ethernet switch, and the server (or the test background) sends the test program data packets on the LAN or the CAN network.
[0032] A hook function is added to the board to be tested. This function can perform specific actions after receiving a data packet message and verifying it is correct.
[0033] When the server (or test background) has a request to transmit a test file, the single board to be tested extracts the executable code of the test program from the message data packet and stores it in a designated RAM area.
[0034] When the test program is transmitted successfully, the single board to be tested sends a transmission success message and c...
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The invention discloses a method for automatically testing a single board of a protective relay device. According to the method, a hook function is added in a program on a single board plug-in unit; and when a test program data packet is sent, the hook function can acquire the corresponding data packet and store the data packet in an executable RAM region. An application program can automatically jump to the RAM region to execute the test program and test whether the functions of the single board are normal or not; and after the single board is powered down and powered up again, the application program cleans up the RAM region data packet after self-checking the RAM, and the test program is automatically deleted. The method disclosed by the invention can bring conveniences for testing the single board of the protective relay device, reduce the single board debugging steps, and improve the production efficiency.
Description
technical field [0001] The invention belongs to the field of power electronics and relay protection of electric power systems, in particular to a method for testing a single board of a relay protection device, which is a safe automatic test method for a single board of a relay protection device. Background technique [0002] During the production and use of devices such as relay protection, testing is often required. For example, after the veneer is produced (the veneer here refers to the electronic component plug-in that is installed in the device after welding the corresponding electronic components and can independently complete certain functions), the veneer should be tested to see if the hardware is intact ;During the production process of the device, it is necessary to test the hardware of the device to see whether the function is complete and whether there is any decline in performance indicators; during the process of use, it is necessary to regularly monitor the dev...
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IPC IPC(8): G01R31/00
Inventor 徐刚张涛肖鲲刘安
Owner BEIJING SIFANG JIBAO AUTOMATION