Train accurate parking system based on UWB wireless ranging technology

Abstract

The invention discloses a train accurate parking system based on a UWB wireless ranging technology. The train accurate parking system based on the UWB wireless ranging technology comprises a UWB wireless ranging device, an on-board host computer, a train parking point distance calculating module and a train real-time position calculation module, wherein the UWB wireless ranging device comprises UWB main equipment and UWB slave equipment, wherein the UWB main equipment is mounted on a train; the UWB slave equipment is mounted on station trackside equipment; the UWB main equipment is used for measuring a distance between the UWB main equipment and the UWB slave equipment in real time; the on-board host computer is mounted on the train and is used for inputting real-time train speed information from a train control system; the updating frequency and phase of the train speed information are consistent with ranging period of the UWB wireless ranging device; the train parking point distancecalculating module is used for calculating a distance D1 between the UWB main equipment and a train parking point according to a formula of D02=(D1+L0)2+L12; and within a ranging period, the real-timeposition of the train within the ranging period is obtained by performing fitting calculation on the train speed information input within the ranging period. According to the train accurate parking system based on the UWB wireless ranging technology, by using the UWB wireless ranging technology, the distance between the running train during pulling in and a parking point location is accurately measured according to real-time speed of the train during running so that accurate parking of the train during pulling in is realized.

Description

technical field [0001] The invention relates to rail traffic control technology, in particular to train parking technology. Background technique [0002] In the field of rail transit, subway trains obtain the current location of the train by installing transponders on the track. Due to the technical characteristics of wireless transponders, the positioning accuracy is not high, which may be plus or minus 10cm or even plus or minus 30cm. This leads to the inability of accurate parking of the train at the station, which affects the passenger experience. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a precise train parking system based on UWB wireless ranging technology, so as to realize the precise parking of trains entering the station. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a train precise parking system based on UWB wi...

AI Technical Summary

Problems solved by technology

This leads to the inaccurate parking of the train at the station, which affects the passenger experience

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