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An etc system capable of precisely locating vehicles and dynamically setting communication areas

A communication area and precise positioning technology, which is applied in the field of ETC system, can solve the problems of low transaction success rate, car following interference, reversing and queue jumping, etc., so as to improve transaction success rate and traffic speed, long transaction time, and improve applicability Effect

Active Publication Date: 2019-10-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, to provide an ETC system capable of accurately locating vehicles and dynamically setting communication areas, which can comprehensively solve car-following interference and adjacent road problems caused by inaccurate positioning and communication area restrictions. Interference, reversing and queue jumping problems, low transaction success rate and low traffic speed

Method used

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  • An etc system capable of precisely locating vehicles and dynamically setting communication areas
  • An etc system capable of precisely locating vehicles and dynamically setting communication areas
  • An etc system capable of precisely locating vehicles and dynamically setting communication areas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 with figure 2 (Note: 12-isolating column and 1-main control machine are not marked in the figure), a kind of ETC system that can accurately locate the vehicle and dynamically set the communication area includes the main control machine 1 and the communication antenna 7 connected to it, Antenna controller, license plate recognition device 8, auxiliary card swiping device 4, information display device 3, automatic railing 2, laser scanner 6, the laser scanner 6 is used to obtain real-time vehicle positioning information, vehicle longitudinal profile information, play an accurate The function of separating vehicles, accurately locating vehicles and actively identifying vehicle types, the laser scanner 6 is arranged in the middle of the lateral direction above the ETC lane through the mounting bracket 5, with a height of 8 meters, and its scanning area 11 is parallel to the driving direction of the lane. The length A of the scanning area 11 is 25m, coveri...

Embodiment 2

[0044] Present embodiment is with embodiment 1 except following feature: as image 3 (note: 12-isolating column and 1-main control machine are not marked in the figure), described auxiliary card swiping equipment 4 replaces with artificial toll booth 13, so just makes ETC lane compatible MTC lane, has also strengthened the ETC lane Processing capacity improves resource utilization and traffic capacity.

Embodiment 3

[0046] Present embodiment is with embodiment 1 except following feature: as Figure 4(note: 12-isolating columns and 1-main control machine are not marked in the figure), the number of the laser scanners 6 is two, which are respectively arranged on two mounting brackets 5 arranged at intervals along the direction of the lane. The scanning area 11 of the laser scanner 6 is parallel to the driving direction of the lane and covers the middle part of the lane, and the distance between the two scanning area planes is 1m, and the distance between the two mounting brackets 5 is 5m; the communication antenna 7 is two sets of microwave antennas, which are installed on the mounting bracket 5, and can project two different communication areas covering the lane: the remote communication area 14 and the near-end communication area 15, which can locate vehicles with electronic tags (OBU), And according to the positioning information obtained by the laser scanner 6, the antenna controller is...

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Abstract

The present invention discloses an ETC (Electronic Toll Collection) system capable of accurately locating a vehicle and dynamically setting a communication area. The system comprises a main control computer, a road side read-write device, a license plate identification device, an information display device, an automatic handrail and a laser scanner connected with the main control computer. The laser scanner is configured to obtain real-time vehicle location information and vehicle longitudinal profile information; and the road side read-write device comprises a communication antenna and an antenna controller, the main control computer is configured to control the antenna controller to trigger a communication antenna to set a communication area to allow the length of the communication area projected onto a lane to be matched with the real-time vehicle location information and the vehicle longitudinal profile information and complete the construction of a vehicle queue, vehicle type identification, effective OBU (On-Board Unit) vehicle transaction and identification of non-effective OBU vehicles and vehicles without OBU vehicles. The ETC system capable of accurately locating a vehicle and dynamically setting a communication area can accurately locate a vehicle and dynamically set a communication area to effectively solve the problems of vehicle following interference, neighboring lane interference, backup and butting in line and the problems that the transaction success rate is not high and the traffic speed is too low.

Description

technical field [0001] The invention relates to the technical field of electronic toll collection (ETC), in particular to an ETC system capable of precisely locating vehicles and dynamically setting communication areas. Background technique [0002] Non-stop toll collection system (also known as Electronic Toll Collection, ETC system for short) is a high-tech product that appeared in the late 1990s and is currently the most advanced toll collection system in the world. The non-stop toll collection system uses dedicated short-range microwave communication (DSRC, Dedicated Short Range Communication) technology, through the on-board electronic tag (OBU, On-Board Unit) installed on the vehicle windshield and the microwave installed on the ETC lane of the toll station. Antennas exchange information, realize vehicle information identification, and use electronic payment to automatically complete the fully automatic charging method of vehicle toll deduction, so that the entire char...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07B15/06
Inventor 刘伟铭
Owner SOUTH CHINA UNIV OF TECH
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