Non-contact-type rail vehicle obstacle detecting system and safe control method

A technology for obstacle detection and rail vehicles, which is applied in the field of non-contact detection of obstacles, can solve the problems of limited detection distance, mechanical damage of trains, and inability to achieve the effects of reducing false alarms, improving accuracy, and ensuring safe operation

Inactive Publication Date: 2018-09-04
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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AI Technical Summary

Problems solved by technology

[0003] In view of the fact that the current obstacle detection technology is mostly a contact method, or a non-contact detection method with a single information source, the contact obstacle detection method has the disadvantages of limited detection distance, mechanical damage to the train, and detection equipment th

Method used

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  • Non-contact-type rail vehicle obstacle detecting system and safe control method
  • Non-contact-type rail vehicle obstacle detecting system and safe control method

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Embodiment Construction

[0023] refer to figure 1 , the present invention includes a video camera device, a laser radar device, an infrared test device, an ultrasonic test device, a GPS, a data fusion device and a train control device, and the laser radar device utilizes laser radar technology to analyze and identify obstacles based on laser reflected waves Detection: The video camera device uses stereo vision technology to detect obstacles according to the principle of feature extraction and matching of the video camera device's pictures taken from different angles of the same scene, and judges the train by comparing and analyzing the reference objects beside the train running track The weather environment, line of sight and light conditions during operation can distinguish the operating conditions of the train; the ultrasonic test device uses ultrasonic technology to obtain obstacle information based on the characteristic analysis of the echo to detect obstacles, and the infrared test device uses inf...

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Abstract

The invention provides a non-contact-type rail vehicle obstacle detecting system. According to the work conditions of a vehicle running in different road conditions, sites and natural environments andthe characteristics of obstacles, output data of a plurality of testing sources such as a video shooting device, a laser radar device, an infrared testing device, an ultrasonic testing device and GPSare fused, advantage complementation of the multiple testing devices is achieved, detecting and pre-warning of the obstacles are completed, operation of the vehicle is controlled, safe operation of the rail vehicle is ensured, and detecting of the non-contact-type obstacles is achieved; the accuracy of detecting and pre-warning of the obstacles is improved, and mistaken alarming and alarming missing rates are decreased; and obstacle testing and pre-warning of the on-rail vehicle under all-weather and full-work-conditions are achieved.

Description

technical field [0001] The invention belongs to the field of safety protection of rail vehicles and relates to the non-contact detection of obstacles during vehicle operation. Background technique [0002] The transportation of rail vehicles has the characteristics of large transportation volume, low energy consumption, high safety, convenience and all-weather transportation. Many countries in the world regard rail vehicles as very important basic transportation facilities. At the same time, with the development of urban rail transit technology, some large cities at home and abroad have proposed to build fully automatic driverless subway trains to improve operating efficiency. Considering the high speed and high inertia of trains during operation, and the relatively complicated road conditions in rail transportation, it is very necessary to conduct in-depth research on the safety of rail vehicle transportation systems, especially the safety of trains. Obstacle detection is ...

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Application Information

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IPC IPC(8): B61L23/04B61L27/00
CPCB61L23/041B61L2205/04B61L27/20
Inventor 赵海波朱彦
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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