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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.

Inactive Publication Date: 2010-08-11
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] This method is simple in equipment, does not require additional equipment on the track, and uses inductive sensors to detect sleepers, which has strong anti-interference performance. However, if the spacing between sleepers is irregular or the width of sleepers is not equal, this method of speed measurement cannot be used.
In engineering applications, it is very difficult to lay sleepers according to the specified spacing, and it is basically impossible to achieve in the construction of long lines

Method used

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

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0030] Such as figure 1 , figure 2 , Figure 4 As shown, the present invention is based on the non-contact rail transit speed measurement and positioning method of sleeper detection, and its steps are:

[0031] ①. Installation: The detection objects 2 are laid in parallel on the track 6 where the vehicle travels. The detection objects 2 are set at a certain distance, and the distance can be laid arbitrarily within the specified range. The detection objects 2 are metal materials in this embodiment The upper surface of the manufactured sleeper remains equal to the sensor 4 . Install two or more sensors 4 at the bottom of the vehicle. Along the forward direction of the vehicle, the sensors 4 are arranged in a straight line along the vehicle body 1. The sensors 4 are calibrated in sequence, and the distance between every two adjacent sens...

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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.

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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Application Information

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IPC IPC(8): B61L1/00G01P3/50G01P3/64G01P13/02
Inventor 龙志强窦峰山戴春辉陈海洋薛松吴峻李杰骆力
Owner NAT UNIV OF DEFENSE TECH
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