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Location method and system

A positioning method and positioning system technology, applied in the field of radio frequency identification, can solve the problem of low positioning accuracy, and achieve the effect of increasing security and real-time tracking

Active Publication Date: 2009-08-26
ZTE ITS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a positioning method and system to solve the problem of low positioning accuracy of existing technologies in rail transit systems

Method used

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  • Location method and system
  • Location method and system
  • Location method and system

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Embodiment Construction

[0021] The embodiment of the present invention provides a positioning method, which is applied to the rail transit system. First, a radio frequency reader needs to be installed on the rail transit vehicle, and a passive tag is installed on the track. In this way, the information between the radio frequency reader and the passive tag Exchange, can determine the exact location of rail transport vehicles. The radio frequency reader can be installed in a certain position of the rail transportation vehicle, such as the front end and the bottom.

[0022] figure 1 It is a schematic diagram of a rail transit system in an embodiment of the present invention, including a rail transit vehicle and a track. In this embodiment, a radio frequency reader is installed at the bottom of the rail transit vehicle, and a passive tag is installed on the track. The rail transit vehicle includes a vehicle-mounted terminal. One or more passive tags can be installed on the track, and the specific inst...

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Abstract

The invention discloses a location method for solving the problem about inferior location precision of the prior art in a track traffic system. A radio frequency reader is mounted on a track transport facility, passive tags are mounted on the track; the method comprises the steps that: the radio frequency reader probes the passive tags and sends identification information of the probed passive tags to an on-vehicle terminal of the track transport facility; the on-vehicle terminal determines the location of the track transport facility in accordance with the received identification information of the passive tags and with a first correspondence relationship between the identification information of the passive tags and location information. The invention also discloses a location system.

Description

technical field [0001] The invention relates to the field of radio frequency identification, in particular to a positioning method and system. Background technique [0002] With the acceleration of urbanization and the increase of car penetration rate, urban traffic congestion is increasing day by day, traffic accidents occur frequently, and the traffic environment is gradually deteriorating. Therefore, it is an irreversible trend to vigorously develop rail transit. Now, subways, light rails The rail transit system has taken on the main responsibility of urban traffic. [0003] In the rail transit system, it is necessary to accurately locate the rail transit vehicle, so that the operating state of the rail transit vehicle can be controlled according to the position of the rail transit vehicle, that is, where the rail transportation vehicle should accelerate and where The rail transportation vehicle should slow down, and where the rail transportation vehicle should stop. At...

Claims

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Application Information

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IPC IPC(8): B61L25/02G01S13/74
Inventor 贾琳邵世刚
Owner ZTE ITS CO LTD
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