Method and system for calibrating laser swinger

A laser leveling instrument, laser technology, applied in the field of intelligent surveying and mapping, can solve problems such as unsuitable laser leveling instrument

Active Publication Date: 2021-04-06
NORTHWEST INSTR INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing calibration method is not suitable for the laser leveling instrument operating in the sector mode or the dot mode

Method used

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  • Method and system for calibrating laser swinger
  • Method and system for calibrating laser swinger
  • Method and system for calibrating laser swinger

Examples

Experimental program
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Effect test

Embodiment 1

[0068] Such as figure 1 As shown, a laser tracking system is disclosed, which includes a laser leveling device 1 and a detector 2 spaced apart from the laser leveling device 1 on the same horizontal plane. Before calibrating the laser leveling instrument 1 , it is necessary to realize the tracking of the laser leveling instrument 1 to the detector 2 , so that the detected position of the laser leveling instrument 1 can be determined.

[0069] In this embodiment, the laser leveling device 1 is at least used to emit laser rays for circular scanning, and the detector 2 is at least used to receive the laser rays. Further, the detector 2 includes a first wireless communication module, and the laser leveling instrument 1 includes a second wireless communication module; wherein, when the detector 2 detects a laser ray, the first wireless communication module sends a second wireless communication module to the laser leveling instrument 1. The communication module sends a probe signal...

Embodiment 2

[0087] Such as figure 1 As shown, a system for calibrating a laser scanner is disclosed, which includes: a laser scanner 1 for generating a laser beam for calibration in a calibration state and a detector 2 for acquiring the laser beam for calibration. Wherein, the laser leveling instrument 1 and the detector 2 are arranged on the same horizontal plane, so that the laser leveling instrument 1 is in the detected position; and the laser leveling instrument 1 is set in a dot pattern or a sector pattern.

[0088] In addition, if figure 2 The shown laser leveling instrument 1 includes: a housing 150 , a control module 110 , a pulse signal generation module 120 , a laser module 130 and a laser rotation unit 140 . Wherein, the control module 110 is arranged in the casing 150, the pulse signal generating module 120 is arranged in the casing 150 and is electrically coupled with the control module 110, so as to be controlled by the control module 110 to generate a pulse signal; the la...

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Abstract

The invention discloses a method and a system for calibrating a laser swinger. The method comprises the steps of: arranging a laser swinger and a detector on the same horizontal plane, so that the laser swinger is located at a detected position; setting the laser swinger to be in a dotting mode or a sector scanning mode; when the detector detects the laser rays emitted by the laser swinger and used for calibration, enabling the detector to generate first position information; when the laser swinger rotates to a first rotation angle, rotating the laser projection direction in the laser swinger by the first rotation angle in the opposite direction relative to the laser swinger, so that the detector detects laser rays emitted by the laser swinger and used for calibration to generate second position information; and determining whether the laser swinger needs to be calibrated or not based on the first position information and the second position information. According to the invention, the laser swinger can detect and calibrate the precision of the laser swinger by using the detector in a sector scanning mode or a dotting mode.

Description

technical field [0001] The present disclosure relates to the field of intelligent surveying and mapping, and more particularly, to methods and systems for calibrating laser leveling instruments Background technique [0002] The horizontal axis accuracy of the laser leveling instrument refers to the range of the angle between the laser surface of the leveling instrument and the absolute horizontal plane in each of the four directions of the front, back, left, and right of the horizontal plane when the laser leveling instrument is normally leveled and scanned on the horizontal plane. According to geometric principles, the accuracy of the horizontal axis is also often expressed as the range of height values ​​from a certain distance. [0003] The existing methods for calibrating the laser leveling instrument are all suitable for calibrating the laser leveling instrument in the rotation scanning mode. Since the detector needs to distinguish the laser beam of the laser leveling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00G01C15/00
CPCG01C25/00G01C15/004G01C15/006
Inventor 王伟臣石昕邢星
Owner NORTHWEST INSTR INC
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