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Vision-based real-time detection method for contactor fault in elevator control cabinet

A technology of elevator control and real-time detection, which is applied in the direction of optical instrument testing, machine/structural component testing, instruments, etc. It can solve the problems of long detection time, cumbersome detection process, untimely detection, etc., and achieve high diagnostic efficiency and safe operation , the effect of high sensitivity

Active Publication Date: 2019-02-22
SUZHOU GLARIE ELEVATOR
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, such as cumbersome detection process, long detection time, untimely detection, missed detection, etc. for the detection of contactor faults in the elevator control cabinet, the present invention provides a contactor fault that can provide early warning and improve the real-time detection real-time detection method

Method used

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  • Vision-based real-time detection method for contactor fault in elevator control cabinet

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Embodiment Construction

[0063] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0064] Such as figure 1 As shown, the contactor fault real-time detection system in the elevator control cabinet of the present invention is mainly composed of a data acquisition module, an image processing module, a detection and diagnosis module, and a fault early warning module.

[0065] The present invention adopts the laser triangulation method, and arranges the laser light source, the measured object, and the camera in a triangular configuration. The principle is as follows: figure 2 shown. The laser light emitted by the light source is irradiated on the surface to be tested, and the line structured light intersects with the object to be measured to produce a light strip on the surface of the measured object, which becomes a distorted and discontinuous light strip due to the geometric shape of the sur...

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Abstract

The invention discloses a vision-based real-time detection method for the contactor fault in an elevator control cabinet. The method comprises the following steps: step one, performing a detection method; to be specific, carrying out detection based on a laser triangulation method; step two, carrying out image acquisition and transmission; to be specific, acquiring an image of structural light irradiation on a contactor by an industrial camera and transmitting the image to a computer through a serial interface; step three, carrying out image processing; to be specific, carrying out image processing on the image by the computer; step four, extracting a stripe center; to be specific, extracting the center of a structural light stripe by using a principal-component-analysis-based structural light stripe center extraction method; and step five, carrying out detection diagnosis; to be specific, diagnosing the working state of the contactor by the computer based on the image processing result. According to the invention, comprehensive real-time detection is carried out by using the line structure light detecting technology; and the vision-based real-time detection method has advantages of safe operation, high sensitivity and high diagnostic efficiency and the like.

Description

technical field [0001] The invention relates to a vision-based line structured light fault detection technology, in particular to a vision-based real-time detection method for a contactor fault in an elevator control cabinet. Background technique [0002] With the rapid development of modern cities, the demand for elevators is increasing, and the elevator control technology has also been developed rapidly. High-performance and computerized control systems are constantly appearing, and their fault detection systems are becoming more and more complicated. , which has high requirements on the operating characteristics of the elevator such as operating speed, operating quality and operating reliability. [0003] The elevator control cabinet is the core component of the elevator control system. It is mainly composed of frequency converter, control electronic board, power supply unit, transformer, contactor, relay, counter, switch, maintenance operation device, intercom system, te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/00G06T7/11G06T7/136
CPCG01M11/00G06T7/11G06T7/136G06T2207/10004G06T2207/20104
Inventor 张夏宁棉福刘斌
Owner SUZHOU GLARIE ELEVATOR
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