Non-contact magnetic-levitation train positioning device and method and magnetic-levitation train

Abstract

The invention provides a non-contact magnetic-levitation train positioning device and method and a magnetic-levitation train. The non-contact magnetic-levitation train positioning device comprises a transmitting antenna, a plurality of pairs of induction loop lines and a signal processing unit. The transmitting antenna is arranged on a body of the magnetic-levitation train. The induction loop lines are laid on a rail. When the transmitting antenna is connected with high-frequency alternating current, an alternating magnetic field is formed surrounding the transmitting antenna and used as an excitation source of the alternating magnetic field. The induction loop lines are used for generating induction voltage signals when the transmitting antenna moves along the induction loop lines. The signal processing unit is used for obtaining the position information of the magnetic-levitation train according to the induction voltage signals sent by the induction loop lines. According to the non-contact magnetic-levitation train positioning device, the transmitting antenna is arranged on the train, the induction loop lines are laid on the rail, and the position information can be transmitted without additional train-ground communication equipment, so that the structure of a whole train system is simplified, the system construction cost is lowered, and the reliability of the system is improved.

Description

technical field [0001] The invention relates to the field of maglev trains, in particular to a non-contact maglev train positioning device and method; the invention also relates to a maglev train with the non-contact maglev train positioning device. Background technique [0002] At present, the conventional maglev trains put into commercial operation are divided into two types: low-speed maglev trains and high-speed maglev trains. This indicates that the relevant technologies of the conventional maglev train have matured. [0003] However, there are some disadvantages in the existing two kinds of maglev transportation systems. The advantage of the low-speed maglev train represented by HSST is that the structure of the suspension and guidance system is simple, but the short-stator asynchronous linear induction motor used in its traction system has two obvious weaknesses: one is the low efficiency and power factor of the motor; Affected by the end effect of the stator, it is...

AI Technical Summary

Problems solved by technology

There are two reasons: First, although both the medium-speed and high-speed maglevs use synchronous linear motors, the high-speed maglevs use the cogging structure of the silicon steel laminated iron core as the long stator on the ground, while the medium-speed maglevs use the long stator with the air-core coil structure , so it is impossible to achieve positioning by detecting the cogging structure; second, the positioning and speed measurement system of the high-speed maglev train is extremely complicated, especially a large number of radio communication base stations must be set up beside the track to transmit the position and speed information measured by the train to the In the ground operation and control room, the wireless communication link not only increases the system construction cost, but also greatly reduces the reliability of the system

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