A method for detecting the distance between a train and its obstacles in the direction of travel

Abstract

The present invention provides a train and a method for detecting the distances from the train to obstacles in its driving direction. The method comprises: installing two sets of laser velocimeters at the train head end faces at two ends of the train respectively; setting the laser detection angles for each set of the laser range finder arranged to detect the distances from the train to obstacles on the straight traveling route, the swerving part or in the traveling direction of the train on a slope; based on the laser range finders, determining whether there exist obstacles in the traveling direction of the target train; and if there are, determining the distances from the train to the obstacles. According to the method of the invention, it is possible to effectively detect the obstacles in the traveling direction of a train and to obtain the distances from the traveling train to the obstacles in its traveling direction, so that a non-communication train is also able to instantly obtain the distance from the train to the obstacles in its traveling direction and that the traveling safety and efficiency of the train are ensured.

Description

technical field [0001] The invention relates to the technical field of urban rail transit, in particular to a method for detecting the distance between a train and an obstacle in its traveling direction. Background technique [0002] The operation of trains in urban rail transit has carried the main force of public transportation in large and medium-sized cities, and has become an indispensable factor in the sustainable development of cities; at the same time, ensuring the safety of trains is also to ensure the safety and An effective means to avoid congestion during peak hours; obstacles or other trains in the direction of train travel are one of the factors affecting the safety of train operation, and especially when the train turns or runs to the ramp, the train driver cannot Timely detection of obstacles in front or uncertainty of the distance to obstacles, and unable to make accurate emergency operations in time, thereby affecting the safety of train operation. [0003...

AI Technical Summary

Problems solved by technology

[0002] The operation of trains in urban rail transit has carried the main force of public transportation in large and medium-sized cities, and has become an indispensable factor in the sustainable development of cities; at the same time, ensuring the safety of trains is also to ensure the safety and An effective means to avoid congestion during peak hours; obstacles or other trains in the direction of train travel are one of the factors affecting the safety of train operation, and especially when the train turns or runs to the ramp, the train driver cannot Timely detection of obstacles in front or uncertainty of the distance to obstacles, and unable to make accurate emergency operations in time, thus affecting the safety of train operation

[0003] At present, the train itself does not have an effective means to detect the obstacles in front or the distance of the vehicle. In the existing mobile block scheme, the train drives according to the traffic permit. If the vehicle in front is a non-communicating vehicle, the train can only use the fixed block Driving in the same way, it is impossible to determine the distance to the obstacles in front or the distance between vehicles in time, which affects the safety of train operation and the efficiency of train operation

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