Vehicle positioning and automatic vehicle release control method and system and base stations

A vehicle positioning and base station technology, applied in the field of intelligent transportation, can solve problems such as the inability to prevent fake license plates, increase the difficulty of engineering construction, and slow traffic opening

Inactive Publication Date: 2015-12-30
SHENZHEN GENVICT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the card issuance method requires parking and swiping the card, resulting in slow traffic; the use of wireless tags is difficult to solve the problem of following cars; the camera method cannot prevent fake license plates and other situations; Difficulty in construction of large projects

Method used

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  • Vehicle positioning and automatic vehicle release control method and system and base stations
  • Vehicle positioning and automatic vehicle release control method and system and base stations
  • Vehicle positioning and automatic vehicle release control method and system and base stations

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Embodiment Construction

[0017] Traditional TDOA positioning methods usually require three or more base stations to achieve the purpose of positioning. Taking planar two-dimensional three-base station positioning as an example, such as figure 1 As shown, assuming that the position of the target T to be positioned is (x, y), the three base stations S 0 , S 1 , S 2 The positions are respectively (x 0 ,y 0 ), (x 1 ,y 1 ), (x 2 ,y 2 ), the distances from the target to the three base stations are r 0 、r 1 、r 2 , target to base station S 0 The distance to the base station S 1 , S 2 The distance difference is △r i , i=1,2, obviously the following formula can be obtained:

[0018] r 0 2 = ( x - x 0 ) 2 + ( y - ...

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Abstract

The invention relates to a vehicle positioning and automatic vehicle release control method and system and base stations. The method comprises the steps that an entrance and an exit of a customs barrier are each provided with one base station, and the distance between the base stations is larger than the width of a lane; an electronic tag is arranged on a vehicle to be tracked and communicated with the base stations when the vehicle is driven into the range of the base stations; according to the distance between the base stations, the width of the lane and the numerical relationship between the width of the lane and the distance between the base stations, when the vehicle is driven into the range of the base stations, the distance between the electronic tag of the vehicle and the base stations is worked out on the basis of an arrival time difference algorithm, and therefore the current position of the vehicle is determined. The vehicle positioning and automatic vehicle release control method has the advantages that the two base stations are adopted, the vehicle can be positioned by adopting the algorithm based on the arrival time difference by means of position information of related fixing equipment of the customs barrier, and therefore whether the vehicle can be automatically released or not is determined according to the positioning result of the vehicle.

Description

technical field [0001] This application relates to the field of intelligent transportation technology, and specifically relates to a vehicle positioning method and system for an environment with vehicle pass checkpoints, a positioning base station involved therein, and a method and method for automatically controlling vehicle release using the positioning method or system system. Background technique [0002] In an environment with vehicle access checkpoints, such as parking lots, residential vehicle management and other application scenarios, the traditional method of controlling the entry and exit of vehicles is to issue IC cards, wireless tags, cameras, etc. combined with ground sense. However, the card issuance method requires parking and swiping the card, resulting in slow traffic; the use of wireless tags is difficult to solve the problem of following cars; the camera method cannot prevent fake license plates and other situations; Difficulty in construction of large p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/123
Inventor 何守勇章佳钦吴昊王浩明熊江波
Owner SHENZHEN GENVICT TECH
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