System and method for automatically testing electrical cabinet of control system

An automatic test and control system technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of inability to detect the logical relationship of electrical cabinets, large development workload, poor scalability, etc., to enhance flexibility and reduce difficulty. and cost, the effect of saving hardware cost

Active Publication Date: 2022-01-21
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The method described in the paper "Yu Junbiao, Su Xiao, Yan Li, etc. The hardware design of the universal tester for the subway electrical cabinet [J]. Computer Measurement and Control, 2015, 23(5): 1838-1840." The hardware board builds the test system, and the software and hardware integrated development work is heavy, and this test system is only for a specific type of test object. Once the test object type changes, the hardware and software need to be readjusted. The scalability is poor and the efficiency is not high.
[0008] The method described in the paper "Wang Xin, Shen Xingliang, Li Pengpeng, et al. Research on Automatic Inspection Technology of Electrical Wiring Based on Machine Recognition [J]. Manufacturing Automation, 2020, 42(11): 47-50." requires the use of machines Vision can only detect orderly wiring parts, once the wiring is chaotic, it is difficult to distinguish
In addition, this method can only detect the relatively simple wiring relationship, but cannot detect the logical relationship of the electrical cabinet
[0009] Although the test system is built with semi-physical simulation platforms such as dSPACE and RT-LAB, although the functions are relatively powerful, such platforms such as dSPACE and RT-LAB are imported products and are expensive
Due to cost and funding constraints, it is difficult to implement in actual projects

Method used

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  • System and method for automatically testing electrical cabinet of control system
  • System and method for automatically testing electrical cabinet of control system
  • System and method for automatically testing electrical cabinet of control system

Examples

Experimental program
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Embodiment 1

[0059] The present invention is aimed at the following scenario. A large-scale experimental device contains a large number of optical mirror frames driven by stepping motors, including one-dimensional translation mirror frames, two-dimensional adjustment mirror frames, and one-dimensional rotating mirror frames. Each mirror frame contains stepping motors, several limit switches, photoelectric switches, cylinders and other electrical components. Due to the large number of frames and the scattered areas, such as figure 1 As shown, the mirror frame control system adopts the EtherCAT bus motion control system, and the motor drive adopts the E-Bus backplane bus type drive module. Such as figure 2 As shown, the components of the control system are installed in the electrical cabinet, and are connected to external devices (stepper motors, limit switches, photoelectric switches, cylinders, etc.) through several wiring definitions on the cabinet. Realize the drive control of more th...

Embodiment 2

[0093] Such as Figure 1 to Figure 9 As shown, the difference between this embodiment and Embodiment 1 is that this embodiment provides a method for automatic testing of the electrical cabinet of the control system, and the method is applied to the electrical cabinet for the control system described in Embodiment 1. A system for automated testing, the method comprising:

[0094] Connect each module of the described system for the automatic test of the electrical cabinet of the control system;

[0095] Establish the simulation model and connection relationship of each object in the test system on the ETest test software, associate each object model with the real object, configure communication parameters, physical parameters, etc.;

[0096] The test script is written in Python language to execute the automatic test process. The ETest test software controls the test host to send a DO signal to the electrical cabinet. The controller PLC receives the signal and feeds back to the ...

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Abstract

The invention discloses a system and a method for automatically testing an electrical cabinet of a control system. The system comprises a test host, an electrical cabinet, an interface transfer box, a stepping motor frame and a communication service host, wherein the test host is internally and dynamically expanded, integrates various board card modules, and is connected with an external system through various aviation plugs; the test host is provided with special ETest software for embedded test, manages various board card modules, and provides a software platform for test; the interface transfer box is used for transferring the electrical signals of the electrical cabinet to the test host and the stepping motor frame respectively; a plurality of stepping motors are mounted on the stepping motor frame and are used for receiving electric signals of the electric cabinet; and the communication service host is used for carrying out communication service between the test host and the PLC in the electrical cabinet through a network interface, and processing and forwarding communication information between the test host and the PLC. Automatic testing of the electrical cabinet of the mirror bracket control system is realized, and the detection efficiency of the electrical cabinet is greatly improved.

Description

technical field [0001] The invention relates to the technical field of automatic testing of electrical cabinets, in particular to a system and method for automatic testing of electrical cabinets of a control system. Background technique [0002] The control system is an important part of various equipment, facilities, devices, etc., and plays an important role in control and command. Electrical cabinets generally exist in various large-scale control systems, and various electrical components are installed inside them according to the electrical principles of the control system, such as air switches, contactors, relays, controllers (PLC), drivers, etc. Whether the wiring and logical relationship of each device inside the electrical cabinet is correct or not plays a vital role in the function realization and safe operation of the control system. Therefore, before the on-site installation and commissioning of the electrical cabinet, it is necessary to test its wiring relations...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02Y02P90/02
Inventor 梁为育叶超黄贤超廖正菊刘盛刘维新
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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