Laser radar, and method for realizing separation of probe from chassis of laser radar

Abstract

The invention discloses a laser radar, and a method for realizing separation of a probe from a chassis of the laser radar. The laser radar and the method relate to the technical field of laser radars.The laser radar comprises the laser radar probe, the laser radar chassis and an optical fiber bundle, wherein the laser radar probe is an optical lens installed in the external environment in an exposed manner, the laser radar chassis is a chassis structure internally provided with an element generating a laser signal, an element receiving the laser signal and an electronic element processing thelaser signal, the chassis structure is isolated from the outside, and the optical fiber bundle connects the laser radar probe with the laser radar chassis. The method realizes the spatial separationof the probe from the chassis of the laser radar, so that the laser device, the detector, the electronic element and the like are placed in the chasses which is relatively isolated from the outside, thereby achieving temperature control, vibration reduction and dust isolation more easily. The exposed part of the probe is just the optical lens, the surface of the optical lens is easier to clean, the optical lens has high resistant to chemical corrosion, and the optical lens is resistant to changes in ambient temperature.

Description

technical field [0001] The invention relates to the technical field of laser radar, in particular to a method for realizing the separation of a laser radar probe and a chassis and the laser radar. Background technique [0002] LiDAR is a key sensor for intelligent driving cars, and has huge market potential and has attracted widespread attention. LiDAR currently on the market is a mechanical scanning type, which is composed of lasers, detectors, optical lenses, scanning mechanisms, electronics, etc., and uses the principle of time-of-flight ranging, which belongs to direct ranging. In the mechanical scanning lidar for intelligent driving, in order to adapt to the distance image acquisition when the car is moving at high speed, multi-point laser lighting is generally used, and multiple lasers are arranged in a line array. One-dimensional scanning in the vertical direction of the line array can obtain the entire image of the space around the car, which is faster than single-p...

AI Technical Summary

Problems solved by technology

No matter what kind of lidar, it is a whole of opto-mechanical integration, and it is not fully suitable for the requirements of autonomous driving.

[0003] At present, in the application fields such as intelligent driving cars, since the lidar must meet the strict requirements of the car regulations before it can be officially installed on the car, the existing lidar still has defects in adapting to harsh environments such as high temperature and bumps, so it is necessary to improve it

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