Speed measuring and positioning method and system of maglev train and maglev train

A technology of maglev trains and positioning methods, which is applied in the direction of railway signals and safety, can solve the problems of system reliability reduction, achieve the effects of improving reliability, realizing collaborative work, and reducing transmission delay

Active Publication Date: 2020-04-17
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a speed measuring and positioning method and system for a maglev train and a maglev train to solve the problem of system reliability reduction caused by vehicle-to-ground transmission delay

Method used

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  • Speed measuring and positioning method and system of maglev train and maglev train
  • Speed measuring and positioning method and system of maglev train and maglev train
  • Speed measuring and positioning method and system of maglev train and maglev train

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Embodiment Construction

[0034] The technical solutions in the present invention are clearly and completely described below in combination with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] Such as figure 1 As shown, a kind of speed measurement positioning method of maglev train provided by the present invention comprises the following steps:

[0036] 1. Obtain the life signals of the first speed measuring system and the second speed measuring system, judge whether the life signals of the first speed measuring system and the second speed measuring system are normal, if they are normal, go to step 2, otherwise use the first speed measuring system and the s...

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Abstract

The invention, which relates to the maglev train control technology, discloses a speed measuring and positioning method and system for a maglev train and the maglev train, and. According to the speedmeasuring and positioning method, on-board equipment acquires speed and position information of a first speed measurement system in a normal case; a ground traction control system acquires speed and position information of a second speed measurement system; the speed and position information of the first speed measurement system is directly transmitted to the on-board equipment and the speed and position information of the second speed measurement system is directly transmitted to the ground traction control system at the same time. Because of no transmission delay, the on-board equipment andthe ground traction control system synchronously receive the speed and position information of the train, so that the communication period is greatly shortened, the transmission delay of the speed andposition information is greatly shortened, and the reliability of the system is improved. The first speed measurement system and the second speed measurement system can operate independently and information interaction can be realized through the communication bus, so that cooperative work of the two speed measurement systems is realized and control over head-to-tail switching of trains is achieved.

Description

technical field [0001] The invention belongs to the control technology of maglev trains, in particular to a speed measuring and positioning method and system for maglev trains and the maglev train. Background technique [0002] The positioning and speed measurement technology of conventional high / medium speed maglev trains is one of the key technologies of traction system and operation control system. Accurate and reliable position and speed information are inseparable from the realization of train speed feedback control, overspeed protection, moving block and fixed-point parking. At present, high / medium-speed maglev trains use long stator synchronous linear motors to achieve traction, and use speed measurement and positioning systems including relative position sensors and absolute position sensors to measure speed and position. Control the wireless transmission system to transmit the speed and position information of the train to the ground traction control system. During...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L25/02
CPCB61L25/021B61L25/028
Inventor 宋丽伟佟来生罗华军李林邓江明
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO
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