A level error automatic calibration device and method for a high-precision laser leveling instrument

Abstract

The invention discloses a horizontal error automatic calibration device and method of a high-precision laser leveling instrument. The device includes a laser detector, a horizontal turntable and a mobile terminal; the laser leveling instrument is the object to be calibrated, the laser detector is used to detect the laser position information scanned by the laser leveling instrument, and the leveling turntable is used to provide a level for the laser leveling instrument Rotating the base surface, the mobile terminal is used to receive the laser position information sent by the laser detector, and calculate the horizontal error calibration angle of the laser scanner according to the laser position and other information, and then realize the rapid level correction of the laser leveling instrument. The level error automatic calibration method provided by the present invention can replace the traditional manual experiment calibration method, avoids cumbersome experiment procedures and occupies a larger experiment site, and has the advantages of fast calibration speed, high precision, and convenient operation.

Description

technical field [0001] The invention relates to the technical field of error correction of laser leveling instruments, in particular to a level error automatic calibration device and method for high-precision laser leveling instruments. [0002] technical background [0003] The laser leveling instrument scans out a large range of horizontal, vertical or inclined reference planes instantly through the fast-rotating visible laser point, so as to provide plane references for construction personnel. Due to its long scanning distance, high precision, and easy operation With the advantages of convenience and flexible use, it has been widely used in engineering technology fields such as engineering surveying, building construction, and interior decoration. [0004] At present, there are still some technical difficulties in the development of high-precision laser leveling instruments. Although the laser leveling instrument based on electronic automatic leveling can collect the incl...

AI Technical Summary

Problems solved by technology

Although the laser leveling instrument based on electronic automatic leveling can collect the inclination information of the leveling structure in real time and provide a theoretical horizontal reference plane through closed-loop control means, the structural processing, assembly and digital inclination sensor of the laser leveling instrument are susceptible to temperature. Inevitably, certain errors will be introduced, which will cause the laser leveling instrument to fail to provide a high-precision horizontal reference plane. Therefore, it is necessary to calibrate the newly produced laser leveling instrument and the laser leveling instrument used under different temperature conditions.

The existing calibration method is mainly to carry out rough calibration through manual experiments, the debugging method is cumbersome, the workload is large, the experimental site is occupied, and the calibration accuracy is low

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