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Laser radar calibration system and method

A laser radar and calibration system technology, applied in radio wave measurement systems, instruments, etc., can solve the problems of low laser calibration efficiency and low calibration accuracy, and achieve the effect of improving calibration efficiency, measuring more data, and realizing automation.

Inactive Publication Date: 2018-12-18
WHST CO LTD
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Problems solved by technology

[0004] The invention provides a laser radar calibration system and a calibration method using the system, aiming to solve the technical problems of low laser radar calibration efficiency and low calibration accuracy in the prior art

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  • Laser radar calibration system and method
  • Laser radar calibration system and method

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Embodiment Construction

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] see figure 1 , the lidar calibration system provided by the present invention will now be described. The laser radar calibration system is used to calibrate the laser radar 2, including a reflection mechanism 1 for receiving the laser beam emitted by the laser radar 2 and reflecting the laser beam to the laser radar 2, and the laser radar 2 measures the laser beam to obtain measurement parameters, The control unit 4 communicates with the laser radar 2 to receive the measurement parameters sent by the laser radar 2. There are multiple reflection points on th...

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Abstract

The invention provides a laser radar calibration system and method, and belongs to the technical field of laser radar systems. The laser radar calibration system comprises a reflecting mechanism for receiving and reflecting a laser beam, and a control unit which is in a communication connection with a laser radar, wherein multiple reflecting points exist on the reflecting mechanism; and the distances between the reflecting points and the laser radar vary continuously. The laser radar calibration method comprises the following steps: emitting the laser beam in a preset measuring angle directionby the laser radar; making the laser beam irradiate on the reflecting mechanism with distances away from the laser radar vary continuously; acquiring the errors between measured distances and actualdistance; and determining calibration data according to the errors and the actual distances. According to the laser radar calibration system and method provided by the invention, the automation of thecalibration process is realized through arrangement of the reflecting mechanism with distances away from the laser radar vary continuously. Moreover, measurement data varying continuously can be acquired without moving the position of the reflecting mechanism, thereby effectively improving the calibration efficiency and the calibration accuracy.

Description

technical field [0001] The invention belongs to the technical field of laser radar systems, and more specifically relates to a laser radar calibration system and a calibration method. Background technique [0002] Lidar is a radar system that emits laser beams to detect characteristic quantities such as the position and speed of targets. The laser radar can effectively obtain the surrounding information of the space. In order to realize the precise positioning of the target object, the laser radar needs to be accurately calibrated, so as to improve the ranging accuracy of the radar and ensure the reliability of the laser radar in actual work. [0003] The laser radar needs to be calibrated before it is used or leaves the factory. The transmission method is to place standard reflectors at different distances in an open space with no interference and few foreign objects to detect the ranging accuracy of the laser radar at different distances. The movement of the standard refl...

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Application Information

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IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 秦屹韩晨阳林建东李进强
Owner WHST CO LTD
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