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A traffic information acquisition system based on linear array CCD video camera imaging

A traffic information collection and camera technology, which is applied in the traffic control system of road vehicles, traffic control system, traffic flow detection, etc., can solve the problems of low vehicle speed measurement accuracy and low image frame rate, and achieve clear vehicle targets, The effect of high resolution and high speed measurement accuracy

Inactive Publication Date: 2010-02-24
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of factors such as the resolution of the area array CCD and the low frame rate of the image, the measurement accuracy of some traffic information parameters such as vehicle speed is not high.

Method used

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  • A traffic information acquisition system based on linear array CCD video camera imaging
  • A traffic information acquisition system based on linear array CCD video camera imaging

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Embodiment Construction

[0014] The traffic information collection system based on linear array CCD imaging of the present invention, specific implementation scheme is as follows:

[0015] see figure 1 , figure 1 For the present invention is the top view of the site layout of the CCD imaging traffic information system configured for four lanes, according to figure 1 Shown: taking four lanes as an example, the traffic information collection system based on linear array CCD imaging of the present invention has installed four linear array CCD camera machines 1 (upper lane and lower lane respectively are installed 2), four auxiliary lighting lamps 2 (two for the up-travel and two for the down-travel), each auxiliary light 2 is equipped with a ballast 3, two light control switches 4 (one for each up-travel and one for the down-travel), six dedicated high-resolution auxiliary Area array cameras 5 (3 for the uplink and 3 for the downlink, one of which is aligned with the lane dividing line), each auxiliary...

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Abstract

The invention discloses a traffic information acquiring system based on linear CCD imaging, which comprises two linear CCD cameras spaced at a certain interval and disposed on a support above two roadsections, each is provided with an auxiliary lighting headlight; and a plurality of auxiliary planar array cameras arranged at the position 15 m away from the front of the two linear CCD cameras andrespectively located on the middle of a driveway and on the separating line of the driveway, wherein the auxiliary planar array cameras in the middle of the driveway can shoot vehicles passing the road, and the auxiliary planar array cameras in the driveway separating line can perform panning shot. When the vehicles pass the road section, the linear CCD cameras can acquire linear image data of thevehicles passing the road section; the acquired linear image data is processed and analyzed to obtain traffic parameters such as traffic flow, vehicle velocity, traffic stream density and road occupation rate, and the planar array cameras can shoot vehicle image which is analyzed and processed to obtain license plate information.

Description

technical field [0001] The invention belongs to the technical field of video processing, and relates to a traffic information collection system, in particular to a traffic information collection system based on linear array CCD imaging. The line array image acquires various traffic information parameters such as vehicle presence, vehicle speed, vehicle plane profile, vehicle type, traffic occupancy rate and flow, etc., to realize the monitoring and evaluation of road traffic conditions and the real-time detection of traffic incidents. technical background [0002] The real-time collection of road traffic information is one of the key contents of intelligent traffic information collection. It detects various traffic parameters such as traffic flow, vehicle speed, traffic density and road occupancy rate in real time on the road, and provides a basis for traffic planning, traffic management, and road maintenance. The department provides important data and execution basis, and p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/017H04N7/18
Inventor 赵祥模宋焕生王国强李卫江徐志刚徐涛李娜刘占文郑贵桢高飞
Owner CHANGAN UNIV
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