Laser radar for vehicle anti-collision system

A laser radar, anti-collision technology, applied in radio wave measurement systems, use of re-radiation, electromagnetic wave re-radiation and other directions, can solve the problems of visual safety threats to surrounding life, inability to scan in all directions, product reliability problems, etc. Achieve the effect of reducing radiation energy requirements, saving laser scanning energy, and avoiding interference

Inactive Publication Date: 2016-08-24
李乔
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the design of the laser radar scanning range of the existing anti-collision system on the market has a serious detection blind spot, which ca

Method used

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  • Laser radar for vehicle anti-collision system

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Example Embodiment

[0013] The present invention will be further explained below with reference to the drawings and specific embodiments.

[0014] Reference figure 1 , A laser radar used in automobile anti-collision system, including transmitting and receiving scanner, the scanner adopts dual rotating laser transmitting and receiving scanner. The dual-rotating laser emitting and receiving scanner includes a base 1, a rotating body 2 with emitting and receiving windows 21, 22 mounted on the base 1, and a laser generator 3, a lens group 31, and a reflector are installed on the upper part of the rotating body 2. Mirror 32, the light path of the reflecting mirror 32 is aligned with the emission window 21, the back of the reflecting mirror 32 is provided with a motor 4 with a cam, and the cam 41 can drive the reflecting mirror 32 to swing, so that the optical path is scanned in a sector shape to achieve the purpose of vertical sector scanning; A laser receiving device is installed in the lower part of t...

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Abstract

The invention discloses a laser radar for a vehicle anti-collision avoidance system. A transmitting and receiving scanner is a dual-rotation laser transmitting and receiving scanner; the dual-rotation laser transmitting and receiving scanner includes a base and a rotation body of a transmitting window and a receiving window, wherein the rotation body is mounted on the base; the upper part of the rotation body is provided with a laser generator, a lens group and a reflector; the emergent light path of the reflector is aligned with the transmitting window; the back surface of the reflector is provided with a motor with a cam which cam drive the reflector to swing, so that the light path can carry out sector-shaped scanning; the lower part of the rotation body is provided with a laser receiving device; a conical reflector is installed at the receiving window; and reflected laser is reflected to a laser receiving probe through the conical reflector. With the laser radar of the invention adopted, the vehicle anti-collision avoidance system can achieve vertical sector scanning and rotary scanning simultaneously, and the radiation energy requirements of scanning laser beams can be reduced. The laser radar has the advantages of high safety, high accuracy and high sensitivity.

Description

technical field [0001] The invention relates to a laser radar used in an automobile anti-collision system. Background technique [0002] With the development of industry and the extensive use of automobiles, the probability of traffic accidents has increased. According to incomplete statistics, traffic accidents account for more than 50% of the total number of accidental deaths. The number of deaths due to traffic accidents in the world has exceeded 30 million. It is estimated that about 250,000 to 300,000 people die in traffic accidents every year in the world today. The incidence of car accidents in my country is the highest in the world, about 15%. Compared with foreign countries, it is 26.5 times that of Japan and 17.8 times that of the United States. Every year, about 60,000 people die in traffic accidents, and more than 200,000 people are injured in the accidents. The incidence and death rate of traffic accidents in my country rank first in the world. Therefore, with ...

Claims

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Application Information

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IPC IPC(8): G01S17/93
CPCG01S17/931
Inventor 李乔田海霞
Owner 李乔
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