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A maglev train speed measurement and positioning system and method

A technology of positioning system and maglev train, which is applied in the direction of railway signal and safety, etc. It can solve the problems of different traction methods, the inability to use high-speed maglev to measure the reluctance count of slot teeth, and the number of tooth slots that cannot be used to rotate the wheel, etc., to meet the speed measurement accuracy and the effect of position feedback

Inactive Publication Date: 2018-11-27
中铁磁浮科技(成都)有限公司 +1
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Problems solved by technology

Due to the non-mechanical contact operation mode of medium and low-speed maglev trains, the method of measuring the number of wheel rotation cogs through the speed sensor of traditional wheel-rail trains cannot be used, and the traction mode of medium and low-speed maglev trains is different from that of high-speed maglev trains, and high-speed maglev trains cannot be used. Ways to measure tooth reluctance counts

Method used

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  • A maglev train speed measurement and positioning system and method
  • A maglev train speed measurement and positioning system and method

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Embodiment Construction

[0024] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0025] Such as figure 1 As shown, a maglev train speed measurement and positioning system includes two sets of speed measurement devices, a set of cross induction loop line speed measurement device is used in the track line area with high precision requirements in the station, and a pulse counting speed measurement device is used in the track with low precision requirements outside the station line area;

[0026] The pulse counting and speed measuring device includes two sets of sensor modules installed on the suspension frame under the vehicle, one set of acceleration sensor modules installed in the vehicle, and one set of detection devices installed in the vehicle; the metal sleeper is detected through the sensor module, and the detection...

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Abstract

The invention discloses a speed measuring and positioning system and a method for a maglev train, comprising two sets of speed measuring devices, one set of cross induction loop speed measuring deviceis used for a track line area with high precision requirement in a station, and the other set of pulse counting speed measuring device is used for a track line area with low precision requirement outside the station. The speed measuring and positioning system also includes a set of control devices, By connecting with two sets of speed measuring devices, Receiving the data sent by the two sets ofspeed measuring devices, according to the vehicle position and the speed and direction information fed back by the two sets of speed measuring devices, automatically adjusting the vehicle speed, position and direction information according to the current demand through the corresponding algorithm, and sending the train current speed, position and direction to the vehicle under the vehicle throughthe wireless transmission module of the on-board controller. The invention satisfies the requirements of speed measurement accuracy and position feedback by adopting different speed measurement positioning in different areas.

Description

technical field [0001] The invention relates to a speed measurement and positioning system and method for a maglev train, which is suitable for the speed measurement and positioning of a medium-low speed maglev train. Background technique [0002] The medium and low-speed maglev train is a new type of transportation. It adopts the constant conduction electromagnetic levitation technology to realize the suspension guidance of the vehicle, and realizes the traction and electric braking through the linear induction motor. It has the advantages of safety, environmental protection, low noise, and low construction, operation and maintenance costs. [0003] As an important part of the traction, brake feedback control and operation control of the maglev train, the speed measurement and positioning system is used to detect the train's running speed, position and running direction. Due to the non-mechanical contact operation mode of medium and low-speed maglev trains, the method of me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L25/02
CPCB61L25/021B61L25/025
Inventor 孙畅刘文亮程维舒伟浩赖重平雷志波
Owner 中铁磁浮科技(成都)有限公司
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