360-degree scanning detection laser radar device

Abstract

The invention discloses a 360-degree scanning detection laser radar device, which comprises a centrosymmetric optical-mechanical structure assembly, a laser ranging module and a 360-degree scanning drive module, wherein the optical-mechanical structure assembly further comprises a shafting structure and an optical window which surrounds the optical-mechanical structure assembly to realize overall or partial coverage; the laser ranging module comprises an emitting optical path, a receiving optical path, a laser emitting assembly and a laser signal receiving assembly, and the emitting optical path and the receiving optical path are designed by adopting a parallel optical path mode; and the 360-degree scanning drive module comprises a scanning mechanism and a scanning drive and control circuit, and a scanning shaft of the scanning mechanism is coaxial with the shafting structure and drives the laser ranging module to rotate around the shafting structure, thereby realizing 360-degree scanning detection. The 360-degree scanning detection laser radar device is highly integrated and small in size, and is suitable for applications of the laser radar in aspects of unmanned vehicles, robot navigation and obstacle avoidance and the like.

Description

technical field [0001] The invention relates to the technical field of laser detection, in particular to a 360° scanning detection laser radar device. Background technique [0002] The traditional scanning detection lidar device adopts the unit laser emitting and receiving module, and drives the rotating mirror to rotate or swing the mirror through the scanning mechanism to realize the two-dimensional scanning of the lidar device; further drives the laser scanning module to rotate as a whole through the turntable transmission mechanism to realize 3D scan of the target. [0003] Lidar systems and devices using multiple laser emission and detection technologies are usually composed of a moving part and a fixed part. The local optical window rotates with the moving part relative to the fixed part. Multiple unit laser emitting and receiving modules are used to achieve three-dimensional scanning of the target , the rotating shaft system of this prior art solution is susceptible ...

AI Technical Summary

Problems solved by technology

[0003] Lidar systems and devices using multiple laser emission and detection technologies are usually composed of a moving part and a fixed part. The local optical window rotates with the moving part relative to the fixed part. Multiple unit laser emitting and receiving modules are used to achieve three-dimensional scanning of the target. , the rotating shaft system of this prior art solution is susceptible to environmental pollution, the miniaturization of equipment is limited, and there are limitations in technical applications

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