Device and method for derailment detection based on laser image measurement

Abstract

The invention discloses a derailing detection device based on laser image measurement. The derailing detection device comprises a control unit and a detection component which are arranged on a towing tractor, wherein the control unit comprises a center processor, an indicating lamp and a serial decoder; and the detection component comprises a camera, a serial encoder and a laser device for generating a horizontal light beam. The detection method comprises the steps of a) acquiring a static image; b) constructing a right-angle coordinate system; c) calculating an image coordinate of a laser beam, wherein coordinates of a lower edge and an upper edge of the laser beam are Ymin and Ymax; d) constructing subversion degree boundaries Xmin and Xmax; e) acquiring an image in real time; f) calculating pixel points exceeding the subversion degree boundaries; and g) judging whether derailing appears. The derailing detection device and the derailing detection method which are disclosed by the invention can effectively and accurately judge whether the towing tractor is derailed; and if the towing tractor is derailed, the indicating lamp sends out an alarm signal, so that the reliability and the accuracy are high, the beneficial effects are outstanding, and application and popularization are facilitated.

Description

technical field [0001] The present invention relates to a derailment detection device and method based on laser image measurement, more specifically, to a derailment detection device and method based on laser image measurement to determine whether derailment is determined by comparing images in a running and stationary state of a tractor. method. Background technique [0002] At present, in the auxiliary transportation system under the coal mine, the transportation method of endless rope continuous tractor is mostly used. During the operation of the endless rope continuous tractor, affected by the undulations and changes of the coal mine underground roadway and the transportation conditions such as turning, accidents of the tractor derailment often occur. Once the tractor derails and fails to be found and stopped in time, it will cause damage to the steel wire rope and tractor equipment, and in severe cases, a sports car accident with a broken rope will cause unimaginable c...

AI Technical Summary

Problems solved by technology

[0005] For the detection method of the first type of device, due to the large fluctuations and strong subversion of the coal mine underground roadway, it is easy to generate a relatively large mechanical acceleration. This method of using mechanical acceleration detection is prone to misjudgment, and it is difficult to achieve the purpose of derailment detection.

[0006] For the detection method of the second device, the ultrasonic wave is too affected by the environment, and there are often a large number of coal blocks in the mine track, which largely prevents the detection device based on the principle of ultrasonic distance measurement from accomplishing the purpose of derailment detection

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