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Solid state laser radar

A laser radar and solid-state technology, applied in the field of laser detection, can solve problems such as unfavorable mass production, difficult manufacturing, and high price

Inactive Publication Date: 2018-07-24
SUTENG INNOVATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned mechanical rotary laser radar has many disadvantages: the slip ring connecting the rotating part and the fixed part is easy to wear, which affects the service life of the entire device; the rotating part occupies a large volume, and it is difficult to further reduce the volume in future applications. Miniaturization; multi-line (such as 32-line, 64-line) lidar transmitter modules and receiver modules are set in pairs, which requires high angle settings and is difficult to manufacture, which is not conducive to mass production and is expensive

Method used

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Embodiment 1

[0024] Such as figure 1 As shown, the solid-state lidar includes a transmitting component 100, a receiving component 200 and a MEMS device 300. The receiving component 200 is arranged above the transmitting component 100, and the MEMS device 300 is used to change the optical path direction of the emitted laser light of the transmitting component 100.

[0025] It also includes a base 400 and a housing. The transmitting assembly 100, the receiving assembly 200 and the MEMS device 300 are all arranged in the cavity surrounded by the base 400 and the housing; the transmitting assembly 100, the receiving assembly 200 and the MEMS device 300 are fixed on the base 400.

[0026] The emitting assembly 100 includes three emitters 101; the emitted laser light of the three emitters 101 has the same elevation angle α and faces the MEMS device 300; to scan.

[0027] The included angle between the emitted laser light of any two adjacent emitters 101 is the same, both being β; after the emit...

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Abstract

The invention discloses a solid state laser radar comprising an emission assembly and a reception assembly; the reception assembly is arranged above the emission assembly; the solid state laser radaralso comprises an MEMS device used for changing the optical path direction of an emitted laser of the emission assembly; the solid state laser radar has no machinery rotation part, employs the MEMS device, is small in structure, and easy to make; the internal element structure is compact in arrangement, and the assembling process is simplified, thus satisfying usage demands of remote measurement and an excellent reception effect; the solid state laser radar is good in stability, long in life, small in size, suitable for mass production, reasonable in price, and suitable for massive commercialapplications.

Description

technical field [0001] The invention relates to the technical field of laser detection, in particular to a solid-state laser radar. Background technique [0002] Lidar is a radar system that emits laser beams to detect the target's position, speed and other characteristic quantities. Its working principle is to first emit a detection laser beam to the target, then the receiver receives the signal reflected from the target, and finally the laser radar will reflect the signal. Compared with the transmitted signal, the relevant information of the target can be obtained after proper processing, such as target distance, azimuth, height, speed, attitude, and even shape and other parameters. [0003] Due to the inherent advantages of lidar for environmental perception, it has become the main sensor for autonomous driving technology to detect the environment. At present, the laser radar mainly adopts the mechanical rotation type: the rotating part drives the transmitting module and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481
CPCG01S7/4817
Inventor 邱纯鑫刘乐天
Owner SUTENG INNOVATION TECH CO LTD
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