Non-contact rail vehicle obstacle detection system

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

Active Publication Date: 2018-07-24
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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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 that cannot be reused. However, the non-contact detection method with a single information source has the problem of not being able to realize real-time detection and early warning, and cannot detect all-weather and all-working conditions. Working obstacle detection system and control method become an inevitable demand

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Embodiment Construction

[0020] 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 non-contact rail vehicle obstacle detection system. According to working conditions of a vehicle during running under different road conditions, in different locations and in different natural environments and characteristics of obstacles, output data of a plurality of testing sources, such as a video camera device, a laser radar device, an infrared testing device, an ultrasonic testing device, a GPS and so on, are fused to realize complementary advantages of the plurality of testing devices so as to finish obstacle detection and pre-warning and control the running of the vehicle, guarantee the safety running of a rail vehicle and realize non-contact obstacle detection; and therefore, the obstacle detection and pre-warning accuracy is improved, the false alarm rate and missing alarm rate are reduced and all-weather and all-condition obstacle testing and warning of the rail vehicle are realized.

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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Patent Type & Authority Applications(China)
IPC IPC(8): B61K9/08B61L23/04
CPCB61K9/08B61L23/041
Inventor 赵海波朱彦
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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