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14 October 2021 Testing device and method of escalator stopping distance based on infrared technology
Zhongxing Li, Guojian Huang, Haixia Ma, Zhenya He
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Proceedings Volume 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation; 119303D (2021) https://doi.org/10.1117/12.2611390
Event: International Conference on Mechanical Engineering, Measurement Control, and Instrumentation (MEMCI 2021), 2021, Guangzhou, China
Abstract
At present, the test of the stopping distance of the escalator mainly relies on the marking method, which is completed manually, and the error is large. In order to improve the efficiency and accuracy of detection, an idea and method for escalator stopping distance measurement based on infrared distance test and Hall induction current test technology is provided. First, it analyzes the braking principle and braking process of the escalator, adopts infrared-based ranging technology, and increases the test frequency according to the algorithm to achieve the effect of real-time testing. During the test, the position of the escalator during the entire braking process is dynamically tracked. Combined with the current sensor to capture the change of the current, through the extraction and processing of the two signals, the accurate stopping distance can be calculated. The test results show that the repeat error of the stopping distance measured by this method is 1.7%, which is reduced to 1/5 of the original, and the test time is shortened to 1/2 of the original.
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Zhongxing Li, Guojian Huang, Haixia Ma, and Zhenya He "Testing device and method of escalator stopping distance based on infrared technology", Proc. SPIE 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation, 119303D (14 October 2021); https://doi.org/10.1117/12.2611390
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KEYWORDS
Infrared technology
Distance measurement
Safety
Inspection
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