System and method for precise positioning and speed measurement of maglev train

Abstract

The invention discloses a precise positioning and speed-measuring system and method for a magnetic levitation train. The precise positioning and speed-measuring system comprises a positioning module,a control module and a display module. The positioning module comprises a vehicle-mounted active laser transmitter, a guide rail positioning mark plate and a vehicle-mounted laser receiver. The control module comprises a signal processing circuit and a controller. The laser transmitter and the laser receiver take the distance-measuring effect, the distance change is measured when the positioning mark plate is scanned, accordingly, positioning information is read, decoded by the controller and then displayed, and the real-time performance and precision of precise positioning and speed-measuringof the magnetic levitation train are improved. The absolute positioning technology of the magnetic levitation train is completed, precise positioning and speed-measuring can be conducted on the magnetic levitation train traveling in a high speed, and the problem of low positioning precision of a current magnetic levitation train is solved.

Description

technical field [0001] The invention relates to a system and method for precise positioning and speed measurement of a maglev train, and belongs to the technical field of maglev train positioning. Background technique [0002] At present, on June 13, 2017, Beijing S1 line completed the first phase of hot sliding test, and it is expected to realize passenger-carrying trial operation within this year. In May 2016, my country's first fully self-developed medium-low speed maglev line—the Changsha Maglev Project was officially put into operation. This is by far the world's longest medium-low speed maglev commercial operation line. On January 4, 2003, the world's first maglev commercial transportation line jointly developed by China and Germany officially started operation in Shanghai, with a total length of 29.863 kilometers. It belongs to the category of high-speed maglev trains with an operating speed of 430 km / h. Moreover, as the only high-speed maglev commercial operation l...

AI Technical Summary

Problems solved by technology

However, for ordinary wheel-rail railways, the position and speed of the train are mainly determined by the track circuit and the photoelectric encoder installed on the wheels. Since the maglev train has no wheels, there is no contact between the vehicle and the track during operation. Velocity measurement and positioning cannot refer to traditional railway measurement methods, and a new speed measurement and positioning method must be developed

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