Automatic test method for switching input and output of light rail door control system

Abstract

The invention discloses a method for automatically testing on-off input and on-off output of a light rail door control system. The method comprises the following steps: after a PLC detects that a start button is pressed down, sequentially outputting corresponding on-off input signals to a CPU of the light rail door control system, and if the CPU detects a corresponding on-off input signal, sending an identifier for detecting a next on-off input signal to the PLC, and opening the next on-off input signal to a working state by the PLC till all the on-off input signals are detected; sequentially outputting corresponding on-off output signals to the PLC by the CPU, and if the PLC detects a corresponding on-off output signal, sending an identifier for detecting a next on-off output signal, and opening the next on-off output signal to a working state by the CPU till all the on-off output signals are detected. According to the method, the problem of too much human labor cost is solved, the on-off amount testing efficiency is improved, certain man-made errors and wrong operations are avoided, and the calibration accuracy is improved.

Description

technical field [0001] The invention relates to the field of light rail door control systems, in particular to an automatic testing method for switching input and output of the light rail door control system. Background technique [0002] At present, the test of the switching input and output signals of the light rail door control system is mainly through manual methods, manually switching different switching signals to the working signal, and observing whether the corresponding indicator lights on the circuit board are lit, so as to verify Whether the switch signal is correctly input or output. Since there are dozens of switching signals that need to be tested, among them, there are many types of switching input signals in the light rail door control system, including upper infrared sensor signals, bottom infrared sensor signals, remote door opening signals, remote door closing signals, and working system signals ( Manual door opening, manual door closing, isolation, autom...

AI Technical Summary

Problems solved by technology

Since there are dozens of switching signals that need to be tested, among them, there are many types of switching input signals in the light rail door control system, including upper infrared sensor signals, bottom infrared sensor signals, remote door opening signals, remote door closing signals, and working system signals ( Manual door opening, manual door closing, isolation, automatic four (choose one), emergency door opening signal, light rail door opening in place signal, light rail door closing in place signal, electronic lock release signal, etc. 20 types, switch output signals include all door closing signals , All door opening signals and sound and light alarm signals will be affected by human factors during the detection process, which will have a relatively large impact on the test results. Possible misoperations when the production task is urgent will produce unobjective test results and cause hidden dangers in quality , and in the detection process, the process is relatively complicated, and the labor and time invested are relatively large

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