Multi-spectral scanning foresight anti-collision laser radar device and application thereof

A technology of laser radar and line scanning, which is applied in the direction of measuring device, using re-radiation, radio wave measurement system, etc., can solve the problems of small scanning angle, expensive, complex optical path, etc., and achieve the effect of improving judgment ability
CN102338875BInactive Publication Date: 2013-12-04李少勤
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
李少勤
Publication Date
2013-12-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a multi-spectral scanning foresight anti-collision laser radar device and application thereof. The multi-spectral scanning foresight anti-collision laser radar device comprises a laser emission system, a polyhedral rotary scanning system, a laser reception and detection system and a control drive system; the laser emission system, the polyhedral rotary scanning system and the laser reception and detection system are sequentially connected; and the laser emission system, the polyhedral rotary scanning system and the laser reception and detection system are also respectively connected with the control drive system. The application method of the multi-spectral scanning foresight anti-collision laser radar device comprises the following steps of: transmitting narrow-pulse beams on a polyhedral reflector (13) by a laser (3), wherein multiple spectrums can be scanned in a vertical foresight road direction because the relative rotating shaft of each surface of the polyhedral reflector (13) has different small inclinations; and giving out related alarms based on data by a control system (1). Compared with the prior art, the multi-spectral scanning foresight anti-collision laser radar device has the advantages of capabilities of obtaining a wide field scanning range, detecting the height and position information of a barrier, and the like.
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Description

technical field

[0001] The invention relates to a forward-looking anti-collision laser radar device and its application, in particular to a multi-line scanning forward-looking anti-collision laser radar device and its application. Background technique

[0002] According to statistics, nearly 45% of vicious accidents on the expressway all originate from automobile rear-end collision, and the immediate cause of rear-end collision is that the driver is difficult to see clearly or distracts attention to the obstacles ahead. The most effective way to reduce accidents is to let the car have a collision warning or active obstacle avoidance function.

[0003] Vehicle radar is divided into ultrasonic radar, infrared radar, lidar and microwave radar. Ultrasonic radar and infrared radar are mainly used in vehicle reversing control systems because of their relatively short detection distances.

[0004] The advantages of lidar are relatively simple structure, high monochromaticity, hig...

Claims

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