Non-contact rail traffic speed-measurement and positioning method based on sleeper detection and device thereof

A non-contact, rail transit technology, applied to devices using electrical/magnetic methods, measuring devices, devices that measure the time required to move a certain distance, etc. It can improve the anti-interference ability, reduce the maintenance workload and reduce the construction requirements.
CN101797927AInactive Publication Date: 2010-08-11NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a non-contact track traffic speed-measurement and positioning method based on sleeper detection and a device thereof. Sensor are installed at the bottoms of train bodies, sleepers laid on tracks in parallel are used as detected objects, the sensors are triggered to generate electric pulses when trains pass through the detected objects, and then the speed measurement and the relative positioning of the trains are accomplished according to the sequence of the triggered sensors and the time each sensor causes the rising edges and the falling edges of the electric pulses. The device comprises more than two sensors installed at the bottom of the train bodies, and measurement control units. The non-contact track traffic speed-measurement and positioning method and the device thereof have the advantages of simple and compact structure, low cost, convenient maintenance, high reliability and wide range of application.
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Description

technical field

[0001] The invention mainly relates to the field of speed measurement of rail transit vehicles, in particular to a non-contact speed measurement and positioning method for rail traffic and a speed measurement and positioning device. Background technique

[0002] As a new generation of transportation, medium and low-speed maglev trains have many advantages such as high speed, strong adaptability to terrain, flexible route selection, safety, and environmental protection. In the maglev train safety and automatic control system, accurate and timely acquisition of train position and speed information, real-time transmission of train running conditions to the ground control center and receiving orders from the control center are the basis and guarantee for train safety and reliable operation . In the maglev train driving safety and command and dispatch system, the train speed measurement and positioning system plays an important role. To realize the functions of ...

Claims

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