Rail traffic distance measurement system and method

Abstract

The invention discloses a rail traffic distance measurement system and method. The system comprises a distance measurement module, a RFID controller and a plurality of RFID labels, wherein the distance measurement module is arranged on rail vehicle, the RFID controller is arranged aside a rail, the plurality of RFID labels are arranged aside the rail at certain distance, the plurality of RFID labels are electrically connected with the RFID controller, and the distance measurement module is in wireless communication with the RFID labels. During the application process, the RFID controller can be used for updating distance measurement information in the RFID labels aside the rail in real time according to the position of the rail vehicle, the rail vehicle at a rear side also can be used forcalculating distance with a front vehicle in real time according to the distance measurement information in the RFID labels, the RFID labels are in wireless communication with the RFID controller, theRFID labels are in near-distance wireless communication with the distance measurement module, and high reliability is achieved; the distance measured in a such way is used for controlling the speed of the rail vehicle, the collision risk of the rail vehicle can be effectively reduced, the safety is improved, and the system is convenient to promote and use.

Description

Technical field [0001] The invention relates to the technical field of rail transit, in particular to a rail transit distance measuring system and a method thereof. Background technique [0002] Traditional rail transit systems, such as trains, high-speed rails, subways, light rails, magnetic levitation, etc., are characterized by a large amount of trains per vehicle and a small flow of trains. These rail transit systems generally obtain position through positioning technology (such as: coded odometer, track circuit, beacon, slot waveguide, crossover cable, wireless spread spectrum communication), and the control center obtains the absolute position of the train through wired or wireless communication. And calculate the distance between the train and the front and rear cars, and then automatically control the train. These ranging methods have poor real-time performance, low accuracy, and weak anti-interference ability, so in general, the running time interval of the following ve...

AI Technical Summary

Problems solved by technology

These ranging methods have poor real-time performance, low precision, and weak anti-interference ability, so the running time interval of trains is generally more than 2 minutes in general

In a fully automatic driving personal rail transit system with a small volume of single vehicles and a large traffic flow, the running time interval of the rail cars is small and the distance is short. If the rail cars are controlled in the traditional way, there will be a great risk of collision, which is very dangerous. Safety

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