Lidar device and mobile robot

Abstract

The invention provides a lidar device and a mobile robot. The lidar device comprises a lidar sensor, a rotating platform and a base. The lidar sensor is arranged above the rotating platform. The baseis used for bearing the rotating platform. An adjustment device is arranged between the lidar sensor and the rotating platform. The adjustment device is configured to drive the lidar sensor to rotatearound a first axial direction, wherein the first axial direction is parallel to the rotating platform. The adjustment device is arranged between the lidar sensor and the rotating platform so that thelidar sensor can be adjusted in the vertical direction to realize scanning in three-dimensional space, the scanning range of the lidar device is wider, other lidar devices are not required, the manufacturing cost is obviously reduced in comparison with the multi-line lidar device, and the technical problems of small scanning range of the single-line lidar device and high manufacturing cost of themulti-line lidar device in the prior art can be overcome.

Description

technical field [0001] The invention relates to the field of laser radar, in particular to a laser radar device and a mobile robot. Background technique [0002] Lidar Light Detection and Ranging, referred to as LidAR, uses laser beams as the information carrier, and Lidar is a radar system that emits laser beams to detect the position, speed and other characteristic quantities of the target. Send a detection signal (laser beam) to the target, and then compare the received signal reflected from the target (target echo) with the transmitted signal, and after proper processing, you can obtain the relevant information of the target, such as target distance, azimuth , height, speed, attitude, and even shape parameters, so as to detect, track and identify aircraft, missiles and other targets. Lidar generally consists of a laser transmitter, a laser receiver, a rotary table and an information processing system. In recent years, the application of lidar in unmanned driving and mo...

AI Technical Summary

Problems solved by technology

However, when the environment of the mobile robot changes or the size of the obstacle is large, the laser radar can only scan and obtain a part of the information of the obstacle. This incomplete information will limit the mapping, navigation and walking of the mobile robot. Some Manufacturers propose multi-line lidar, that is, lidar with multiple emitters. By increasing the number of emitters, the scanning range of lidar is increased to realize the scanning of three-dimensional space environment. However, this method will inevitably increase the laser The cost of radar is not conducive to mass manufacturing and production

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