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Laser radar calibration device and method

A laser radar and calibration device technology, applied in the laser field, can solve the problems of laser radar error, data or information deviation, etc.

Active Publication Date: 2020-11-03
BEIJING VOYAGER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the possible errors in the design and manufacture of mechanical components, the lidar itself may have certain errors
There are errors in the lidar, which may lead to deviations in the object data or information obtained when detecting objects

Method used

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  • Laser radar calibration device and method
  • Laser radar calibration device and method

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Embodiment Construction

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the following briefly introduces the drawings that need to be used in the description of the embodiments. Apparently, the accompanying drawings in the following description are only some examples or embodiments of this specification, and those skilled in the art can also apply this specification to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

[0029] It should be understood that "system", "device", "unit" and / or "module" as used herein is a method for distinguishing different components, elements, components, parts or assemblies of different levels. However, the words may be replaced by other expressions if other words can achieve the same purpose.

[0030] As indicated in the specification and claims, the terms "a", "an", "an" and / or "the...

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PUM

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Abstract

The embodiment of the invention provides a laser radar calibration device and method. The device comprises: a laser radar platform deck used for bearing a to-be-calibrated laser radar; the coarse positioning module which is used for acquiring a first light spot image of a laser beam of the to-be-calibrated laser radar; the movable fine positioning module which is used for adjusting a second shooting position based on the first light spot image and acquiring a second light spot image of the laser beam, wherein the resolution of the second light spot image is higher than that of the first lightspot image; the control module which is used for determining a target position of the light spot in a preset coordinate system based on the second light spot image; and determining an actual emergenceangle of the laser beam at least based on the target position.

Description

technical field [0001] This specification relates to the field of laser technology, in particular to a laser radar calibration device and method. Background technique [0002] LiDAR detects the environment and objects within the target range by emitting laser light and receiving reflected light from the target range (such as distance and angle), motion status (such as speed, vibration and attitude) and shape characteristics. . Due to the possible errors in the design and manufacture of mechanical components, the lidar itself may have certain errors. There are errors in lidar, which may lead to deviations in the object data or information obtained when detecting objects. [0003] Therefore, it is desired to provide a laser radar calibration device and method. Contents of the invention [0004] One aspect of the present specification provides a lidar calibration device. The device includes: a laser radar carrier, used to carry the laser radar to be calibrated; a coarse p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 王超张泉孔令凯
Owner BEIJING VOYAGER TECH CO LTD
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