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Magnetic levitation train positioning and speed measuring system and method and magnetic levitation train

A technology for maglev trains and speed measurement, which is applied in the direction of railway signals and safety, etc., can solve the problems of reducing system reliability and complex positioning system structure, and achieve the effects of reducing equipment redundancy, simplifying system structure, and improving accuracy and reliability

Active Publication Date: 2016-08-31
NAT UNIV OF DEFENSE TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the structure of these two positioning systems is relatively complex, which greatly reduces the reliability of the system.

Method used

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  • Magnetic levitation train positioning and speed measuring system and method and magnetic levitation train
  • Magnetic levitation train positioning and speed measuring system and method and magnetic levitation train
  • Magnetic levitation train positioning and speed measuring system and method and magnetic levitation train

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Embodiment Construction

[0047] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] see Figure 1-3 , figure 1 It is a structural block diagram of an embodiment of the first maglev train positioning and speed measuring system provided by the present invention; figure 2 The synchronous linear motor winding structure diagram provided for the embodiment of the present invention; image 3 It is a schematic diagram of the relative positions of the on-board coil and the induction loop line provided by the present invention.

[0049] The present embodiment comprises a vehicle-mounted coil 1, an induction loop 2 and a ground control unit 3; the vehicle-mounted coil 1 is installed on the body of the maglev train, and the induction loop 2 is laid on the track together with the traction winding of the synchronous linear motor of ...

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Abstract

The invention discloses a magnetic levitation train positioning and speed measuring system and method and a magnetic levitation train. The magnetic levitation train positioning and speed measuring system comprises a train-mounted coil, an induction loop line and a ground control unit. The train-mounted coil is installed on a body of the magnetic levitation train, the induction loop line and a magnetic levitation train synchronous linear motor traction winding are jointly laid on a track, and the winding manner of the induction loop line is the same as that of the magnetic levitation train synchronous linear motor traction winding. When high-frequency alternating current enters the train-mounted coil, an alternating magnetic field is formed on the periphery of the train-mounted coil, and the train-mounted coil is used as an excitation source of the alternating magnetic field. The induction loop line is used for generating induction voltage signals when the train-mounted coil moves along the induction loop line. The ground control unit is used for obtaining position and speed information of the magnetic levitation train according to the induction voltage signals sent by the induction loop line. By the adoption of the system, the structure of the system is simplified, the accuracy and reliability of the magnetic levitation train positioning and speed measuring system are improved, and the position and speed information of the magnetic levitation train is detected easily, conveniently and rapidly.

Description

technical field [0001] The invention relates to the field of maglev trains, in particular to a positioning and speed measuring system and method for a maglev train. The invention also relates to a maglev train provided with the maglev train positioning and speed measuring system. Background technique [0002] The maglev train is a new type of transportation. It relies on electromagnetic force to realize the suspension, guidance and traction of the vehicle. There is no mechanical contact between the vehicle and the track during operation. It has the advantages of low noise, no wear, easy maintenance and strong environmental adaptability. Broad development prospects. [0003] Japan's medium and low-speed maglev train system uses flat mode belts with induction loops for vehicle-ground communication and speed measurement and positioning. This system has a compact structure and is a special equipment developed for the needs of medium and low-speed maglev trains. There are two ...

Claims

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Application Information

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IPC IPC(8): B61L25/02
CPCB61L25/02B61L25/021
Inventor 戴春辉窦峰山龙志强
Owner NAT UNIV OF DEFENSE TECH
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