Integrated laser scanning traffic survey device and integrated laser scanning traffic survey method

A technology for laser scanning and traffic conditions, applied in the field of laser applications, can solve the problems of large construction volume, high cost, unfavorable promotion, etc., and achieve the effects of simple and convenient maintenance, low cost, and easy promotion.

Active Publication Date: 2013-04-17
BEIJING WANJI TECH
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Problems solved by technology

However, the cost of using two laser scanning ranging devices is high and the

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  • Integrated laser scanning traffic survey device and integrated laser scanning traffic survey method
  • Integrated laser scanning traffic survey device and integrated laser scanning traffic survey method
  • Integrated laser scanning traffic survey device and integrated laser scanning traffic survey method

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[0052] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

[0053] In order to solve the above problems in the prior art, the embodiments of the present invention provide an integrated laser scanning traffic situation investigation device with low cost, high detection accuracy and reliability, and simple on-site installation and debugging based on the principle of single-point laser ranging. Through one device, at least two scanning detection sections are formed on the driving section of the vehicle to realize traffic situation investigation.

[0054] figure 1 It is a schematic structural diagram of an integ...

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Abstract

The invention discloses an integrated laser scanning traffic survey device and an integrated laser scanning traffic survey method, wherein the device comprises a laser-emitting unit, a laser-splitting unit, a focused light-receiving unit, a data conversion unit and a data analysis and processing unit; the laser-emitting unit is used for generating a pulsed laser beam; the laser-splitting unit is used for splitting the pulsed laser, so that at least two scanning detection sections are generated on the running sections of detected vehicles; the focused light-receiving unit is used for receiving and focusing the return light of the diffusely reflected pulsed laser to enhance the optical signal as the detected vehicles pass through the scanning detection sections; the data conversion unit is used for converting the focused optical signal into an electric signal; and the data analysis and processing unit is used for acquiring the running information of the detected vehicles according to the electric signal. The integrated laser scanning traffic survey device is easy and convenient to mount, debug and maintain in practice; only one device can accurately measure the speeds of motor vehicles and accurately identify vehicle models, so that traffic conditions can be surveyed; moreover, the detection precision is high, the cost is low, and the invention is easy to popularize.

Description

technical field [0001] The invention relates to the technical field of laser applications, in particular to an integrated laser scanning traffic condition investigation device and method. Background technique [0002] As an important information resource of road traffic, traffic survey is the basis of macro management and decision-making in the transportation industry, and is the information support for the accelerated transformation and development of road traffic. The field of intelligent transportation involves the investigation of traffic conditions, and it is necessary to measure the speed of vehicles on the road and identify the vehicle type. [0003] The methods currently used for vehicle speed measurement and vehicle identification on highways can be divided into video detection technology, ultrasonic detection technology, infrared detection technology, induction coil detection technology, piezoelectric film and coil combination technology, and Laser detection techn...

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Application Information

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IPC IPC(8): G08G1/04G08G1/017
Inventor 王庆飞李建军邓永强王泮义李宗洲熊若讷
Owner BEIJING WANJI TECH
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