Target positioning detection device and method based on railway infrared axle temperature detection
A technology of target positioning and infrared axle temperature, which is applied in railway vehicle shape measuring instruments, railway car body parts, railway auxiliary equipment, etc., can solve the problems of abnormal waveform identification of infrared detection system, and reduce the probability of false alarms and missed alarms. , improve the recognition rate, improve the accuracy of the effect
Pending Publication Date: 2022-05-06
BEIJING CTROWELL INFRARED TECHN +1
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[0005]
In order to solve the problem of identifying abnormal waveforms in the infrared detection system of railway vehicles and realize accurate, reliable and effective detection, the present invention proposes a target positioning detection device and method based on railway infrared shaft temperature detection
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[0035] The specific implementation method of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0036] A target positioning detection device and method based on railway infrared axis temperature detection in the present invention adds a laser ranging sensor, and the center of the detection field of view coincides with the center of the infrared sensor to ensure that the same detection field of view as the infrared sensor can be obtained. The laser ranging sensor can obtain the outline of the train bottom sweeping the axle box by sending and receiving laser light. Since most of the outlines of the axlebox parts are approximately the same, this feature can be used to quickly identify the time period where the axlebox parts are located. What the infrared sensor obtains is the infrared radiation of the front and rear lines of the axle box. Due to the existence of thermal interference, the voltage-time curve obtained by photoel...
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The invention discloses a target positioning detection device and method based on railway infrared axle temperature detection, and belongs to the field of railway safety monitoring. The target positioning detection device comprises an infrared probe, an upper computer and a networking center, wherein the infrared probe comprises a probe shell, an infrared detection window, a laser ranging detection window, an infrared optical system, a laser ranging sensor, an infrared sensor and a signal processing module. At the beginning, the infrared sensor converts axle box infrared radiation received by the infrared optical system into a voltage signal, outputs the voltage signal to the signal processing module, and uploads the voltage signal to an upper computer after processing. Meanwhile, the laser distance measuring sensor detects distance information generated by train movement and uploads the distance information to the upper computer. And then the upper computer processes the distance information and the voltage signal data, determines the position of the axle box and the temperature information of the axle box area, and accurately calculates the axle temperature. And finally, the axle temperature is uploaded to a networking center for hot axle forecasting. According to the invention, the accuracy of axle temperature calculation is ensured, and the probability of false alarm and missing alarm is reduced.
Description
technical field [0001] The invention belongs to the field of railway safety monitoring, in particular to a target positioning detection device and method based on railway infrared shaft temperature detection. Background technique [0002] In the field of railway safety monitoring, the infrared axle temperature detection system adopts non-contact infrared detection, which can quickly detect the temperature of the axle box during train operation. The infrared axle temperature detection system uses an infrared sensor as the core component, which is sensitive to infrared radiation. In practical applications, the infrared axle temperature detection is affected by the train model, maintenance treatment status, and operating conditions, and the detection target may be blocked. Or the detection target is subject to other thermal interference, resulting in abnormal waveforms in the detection results, and it is difficult for the central software to judge the real situation, resulting ...
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Login to View More IPC IPC(8): B61K9/04B61K9/06
CPCB61K9/04B61K9/06
Inventor 杨征西郭小勇毕方勇李柳竺刘鹏军纪建军付俊峰程海青
Owner BEIJING CTROWELL INFRARED TECHN