Leveling device and method for lidar emission optical path

Abstract

The invention is applicable to the technical field of radars, and discloses a leveling device and method for a lidar emission optical path, and the leveling device comprises a radar base for fixing alidar, adjusting equipment, a reflector, a light screen, a camera and analysis equipment, wherein the reflector is used to reflect the scanning beam emitted by the lidar onto the light screen to formreflective light spots; a reference mark is set on the light screen and used to mark the distance between the respective reflective light spots; the camera is used to shoot an image of the light screen presenting the reflective light spots, and send the shot image to the analysis equipment; the analysis equipment determines adjustment parameters of a light source of the lidar based on the image and sends the adjustment parameters to the adjusting equipment; and the adjusting equipment adjusts the light source according to the adjustment parameters until the distance between the respective reflective light spots on the light screen is less than or equal to a preset distance. The leveling device and method for the lidar emission optical path provided by the invention can realize the automatic leveling of the lidar emission light path, and can be realized only by one camera with low cost.

Description

technical field [0001] The invention belongs to the technical field of radar, and in particular relates to a leveling device and method for a laser radar emitting light path. Background technique [0002] Lidar is a radar system that uses laser beams to detect objects. It emits laser beams to the target, detects and processes the light signals returned by the target object to obtain information such as the position, distance, speed, and contour of the object. It has high detection accuracy, With the advantages of fast detection speed, it is widely used in mobile robot mapping, obstacle avoidance and other fields. [0003] A laser radar generally includes a transmitting optical path and a collecting optical path. The forms of the receiving and receiving optical paths are different, and the optical structures that need to be adjusted in the optical path are also different. The emitting optical path emits a collimated laser beam. During the scanning process of the radar, the sc...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a laser radar emission optical path leveling device and method to solve the problem that the existing technology only detects whether the scanning beam is a horizontal scanning beam, which cannot be adjusted, and the detection device needs to be in the radar Place multiple cameras around for detection, expensive problem

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