Method for positioning rail vehicles in real time on basis of radio frequency identification

A radio frequency identification technology and real-time positioning technology, which is applied in the field of real-time positioning of rail vehicles, can solve problems such as position drift, unusability, and inability to accurately locate trains, and achieve the effects of high precision, faster turnover frequency, and shorter dwell time

Inactive Publication Date: 2014-05-28
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] The vehicle-mounted train positioning technology mainly adopts the safe coded odometer method, using GPS or A-GPS for real-time positioning, but this technology will have position drift and cannot be used in confined spaces such as tunnels, and it cannot accurately position the train

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  • Method for positioning rail vehicles in real time on basis of radio frequency identification
  • Method for positioning rail vehicles in real time on basis of radio frequency identification

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the patent of the present invention is described in further detail.

[0023] As shown in the figure, the rail vehicle real-time positioning system based on RFID radio frequency identification technology consists of three parts: RFID tags, RFID readers and background servers.

[0024] RFID tags, installed on the track, are used as beacons in trackside positioning to store unique IDs that correspond to physical addresses one by one.

[0025] RFID reader, installed on the train, can automatically collect the ID of the RFID tag installed on the track around the clock, and transmit it to the management software of the background server through the wireless module for processing. The main equipment also includes the readout device host, microwave transceiver antenna , Several parts of the wireless module.

[0026] Background server, running management software, man-machine program and database, receiving and processing tag ID d...

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Abstract

The invention provides a method for positioning rail vehicles in real time on the basis of radio frequency identification (RFID). The method for positioning the rail vehicles in real time is characterized in that the method is based on a system comprising RFID tags, RFID read-write devices and a background server; the RFID tags are mounted among rails, the RFID read-write devices are mounted on the trains, and the background server runs and manages databases and manages software and man-machine programs; physical addresses corresponding to ID (identification) information are searched via the databases according to the ID information after the background server receives the ID information from the RFID read-write devices, information is transmitted back to the system management software, the management software transmits the read physical addresses to the man-machine programs, and the trains can be accurately positioned by the man-machine programs according to the physical addresses. The method has the advantages that the trains can be dynamically monitored, regulated, controlled and dispatched by the aid of the method, the safety of the trains can be dynamically protected by the aid of the method, accordingly, the running efficiency and safety coefficients of the rail vehicles can be improved, the system is high in positioning precision and environmental applicability as compared with the traditional method for monitoring rails, and the like.

Description

technical field [0001] The patent of the present invention relates to the field of real-time positioning of rail vehicles, more specifically, a system for real-time positioning of rail vehicles based on radio frequency identification (RFID) technology. Background technique [0002] In recent years, more and more cities in China have built subways and light rails. Rail transit is the first choice to solve traffic problems in large and medium-sized cities. It has the characteristics of large transportation volume, fast speed, safety, punctuality, environmental protection, energy saving and land use. The train has the characteristics of high running density and short distance between stations, so real-time and accurate monitoring of the position of the train on the line is required to ensure its high safety. [0003] At present, the train positioning methods are mainly divided into two categories: one is the vehicle-mounted train positioning technology, and the other is the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L25/02
Inventor 喻春雨
Owner NANJING UNIV OF POSTS & TELECOMM
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