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A reflective laser light curtain divider and its realization method

A technology of laser light curtain and car divider, applied in the field of intelligent transportation, can solve the problems of high cost, difficult construction and maintenance, and unadjustable detection range, and achieve the effect of simple construction, continuous detection, and convenient installation and maintenance.

Inactive Publication Date: 2018-02-02
天津杰泰高科传感技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the grating vehicle separator is installed and fixed, its detection range cannot be adjusted, and the construction and maintenance are difficult and costly

Method used

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  • A reflective laser light curtain divider and its realization method
  • A reflective laser light curtain divider and its realization method
  • A reflective laser light curtain divider and its realization method

Examples

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail,

[0031] Such as Figure 1 to Figure 8 As shown, a reflective laser light curtain car divider includes a car divider housing 1, a transmitting lens 2, a wide-angle receiving lens 3, a base 4 and a car divider circuit arranged in the car divider housing 1, and the divider The vehicle circuit includes a laser ranging module, a main control module and a power supply module. The laser ranging module is connected to the main control module, and the power supply module is used to provide the working voltage of the entire circuit.

[0032] The laser ranging module includes a laser emitting unit, a drive circuit, a photoelectric receiving unit, an amplification and shaping circuit, and a time measurement unit, which are used to emit laser light, receive reflected light signals, and measure laser flight time.

[0033] The main control module includes a single-chip...

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Abstract

The invention relates to the field of intelligent transportation, in particular to a reflective laser light curtain vehicle separating device and an achievement method. Synchronous quick scanning is performed to detect whether a vehicle exists in an area or not by applying a pulse ranging principle and adopting a multi-channel laser transmitter and the same receiver so as to achieve vehicle separation. The vehicle separating device is mounted on the side of a lane, and a generated light screen is formed by at least two light beams uniformly distributed and combined in a fan-shaped mode. Each light beam appears a narrow-strip-shaped light spot, the narrow-side portions of the adjacent light spots are overlapped, and multiple light beams form a fan-shaped detection area to achieve wide-angle detection after being spliced. Small to-be-detected objects located between every two light spots can be prevented from being missed during detection in the mode that the adjacent light spots are overlapped and spliced, so that continuous detection is ensured, and interruption is avoided. Compared with a traditional grating type vehicle separating device, the reflective laser light curtain vehicle separating device is simple and easy to construct, quick and convenient to install and capable of adjusting a detection range and is not restricted by a field environment.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a reflective laser light curtain divider and a realization method. Background technique [0002] With the development of the economy, my country's roads have developed rapidly, but at the same time, the phenomenon of road freight overloading is becoming more and more common. Vehicle overload will shorten the service life of roads, endanger the safe use of bridges, and lead to an increase in vicious traffic accidents. In order to control the problem of freight overload, freight vehicles are charged by weighing at expressway toll stations. The vehicle separator is used to detect the presence or absence of vehicles and their passing conditions, and is an important part of the weight toll system. [0003] At present, the vehicle separators used in expressway toll stations are mainly grating vehicle separators. However, since the grating vehicle separators adopt the princip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/04
CPCG08G1/04
Inventor 张洪奇姜蕾季慧
Owner 天津杰泰高科传感技术有限公司
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