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Laser radar system

一种激光雷达、激光束的技术，应用在环境感知领域，达到提高扫描轨迹线密度、便于小型化和集成化、减小运算量的效果

Pending Publication Date: 2022-06-03
HESAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing laser radar system is difficult to achieve a balance between small size and multiple performance parameters. How to reasonably arrange the internal space of the laser radar system to improve space utilization and make its structure More compactness and improved heat dissipation performance are still areas in urgent need of improvement

Method used

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Embodiment Construction

[0070] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0071] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", etc. are based on the orientations or positional relationships shown in the accompanying drawin...

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Abstract

The invention provides a laser radar system, which comprises at least one transceiver module used for transmitting a detection light signal and receiving an echo signal reflected by a to-be-detected target; the at least one scanning module is used for reflecting the pulse laser beams emitted by the plurality of receiving and transmitting modules to a three-dimensional space, and is used for reflecting the echo signals to the corresponding receiving and transmitting modules; the at least one scanning module is located on one side of the at least one transceiving module, the transceiving module comprises a transmitting module, the transmitting module is provided with a plurality of first light sources arranged at intervals, and the plurality of first light sources sequentially transmit pulse laser beams according to a preset time sequence. Each transmitting module of the laser radar system comprises a plurality of light sources which are arranged at intervals in the vertical direction, the scanning track linear density of a vertical view field is effectively improved, the multiple light sources are transmitted at different time intervals, and interference of a receiving light path is effectively reduced.

Description

technical field [0001] The present invention relates to the technical field of environment perception, in particular to a laser radar system. Background technique [0002] In the autonomous driving technology, the environmental perception system is a basic and crucial part, and it is the guarantee of the safety and intelligence of the autonomous vehicle. The lidar in the environmental perception sensor has the advantages of reliability, detection range, ranging accuracy, etc. Incomparable advantages. [0003] Vehicle lidar is an important sensor for perceiving surrounding information, and its field of view and scanning accuracy are its important parameters. For the vertical field of view, the greater the density of scanning trajectory lines in the vertical direction, the higher the scanning resolution and the richer the information, which is more conducive to automatic driving decision-making. For lidars using scanning methods such as galvanometers, the density of scanning...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/931G01S7/481G01S7/483
CPCG01S17/931G01S7/4817G01S7/483
Inventor 申士林向少卿
Owner HESAI TECH CO LTD
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