Obstacle detection method for train track, and obstacle detection system

Abstract

The invention discloses an obstacle detection method for a train track, and an obstacle detection system. When a train in fault is parked at the interval, an onboard controller automatically starts anunmanned aerial vehicle on the train, the unmanned aerial vehicle accomplishes the real-time detection work of the road condition at the fixed distance in front of the train, the unmanned aerial vehicle maintains the wireless communication with the onboard controller so as to perform obstacle detection, and a result is real-time transmitted to the onboard controller; once detecting the obstacle or the turnout is not located at the correct location, the onboard controller updates the train mobile authorization distance and the flight authorization location of the unmanned aerial vehicle through the computation, thereby warning in advance for the t rain and taking the emergency braking measure. Through the detection system disclosed by the invention, the obstacle in front of the track can be effectively identified, the conditions, including the bend, in front of the road can be known in advance, and the efficiency of recovering the train from the fault is greatly improved.

Description

technical field [0001] The present invention relates to the technical field of rail transportation, in particular to the obstacle detection technology for train tracks. Background technique [0002] The main obstacle monitoring method of the existing subways in China is to use physical contact obstacle protection detection. An anti-collision obstacle detection device is installed on the bogie of the car body. Once the train and the obstacle collide, the mechanical device under the front of the train will be triggered. Displacement, and then trigger the relay action in the emergency braking safety loop to stop the train in time. The disadvantage of this method is that it will only play a protective role when a collision occurs, and the train cannot predict the line situation in advance and implement advance protection. At present, new types of obstacle detection methods are being studied at home and abroad, mainly including video-based intelligent obstacle recognition and de...

AI Technical Summary

Problems solved by technology

However, these methods also have certain limitations

The equipment is limited to be installed at a fixed position on the front of the vehicle, and the detection distance and range are limited, especially in subway tunnels where there are many curves, these methods are unable to detect the status of obstacles in the curves

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