Method for calibrating laser swinger

A laser leveling instrument and laser technology, applied in the field of intelligent surveying and mapping, can solve problems affecting the efficiency and reliability of calibration operations, and achieve the effect of simple, convenient and high-precision calibration process

Pending Publication Date: 2021-04-06
NORTHWEST INSTR SHANGHAI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The common calibration method of the laser scanner on the market is based on the fixed distance between the laser scanner and the receiver of the laser scanner. The measurement of the fixed distance and the conversion of the accuracy range will affect the efficiency and reliability of the calibration operation.

Method used

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  • Method for calibrating laser swinger
  • Method for calibrating laser swinger
  • Method for calibrating laser swinger

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Embodiment Construction

[0043] In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part of this disclosure. The accompanying drawings show, by way of example, specific embodiments in which the disclosure can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments according to the present disclosure. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present disclosure. Accordingly, the following detailed description is not limiting, and the scope of the present disclosure is defined by the appended claims.

[0044] figure 1 A flowchart of a method 100 for calibrating a laser scanner according to an embodiment of the present disclosure. From figure 1 It can be seen that the method 100 for calibrating a laser leveling instrument proposed in the present disclosure includes the following step...

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Abstract

The invention relates to a method for calibrating a laser swinger, and the method comprises the steps of: enabling the laser swinger to transmit laser to a receiving unit, and obtaining and recording the position of first laser received on the receiving unit; horizontally rotating the laser swinger by 180 degrees along a vertical axis to obtain a first detection value of a levelness sensor in the laser swinger; adjusting the gradient of the laser emitted by the laser swinger to enable the laser on the receiving unit to be located at the first laser position, and obtaining a second detection value of a levelness sensor in the laser swinger; and determining whether the laser swinger needs to be calibrated or not based on the first detection value and the second detection value. According to the method for calibrating the laser swinger, calibration is achieved by means of the gradient function of the laser level meter, assistance of a specific instrument is basically not needed, the calibration process is simple and convenient, and the precision is high.

Description

technical field [0001] The present disclosure relates to the field of intelligent surveying and mapping, and more specifically relates to a method for calibrating a laser leveling instrument. 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 horizontal plane, front, back, left, and right, when the laser leveling instrument is normally leveled and scanned on the horizontal plane, such as ± 20arcsec. According to geometrical principles, the accuracy of the horizontal axis is often expressed as the range of height values ​​outside a certain distance, for example, the height at 30 meters is within the range of ±3mm. [0003] The common calibration methods for laser leveling instruments on the market are based on the fixed distance between the laser leveling instrument and the laser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00G01C15/00
CPCG01C15/004G01C25/00
Inventor 王伟臣石昕邢星
Owner NORTHWEST INSTR SHANGHAI
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