Digital leveling instrument

Abstract

The invention relates to a digital leveling instrument which has higher working efficiency and higher reliability, automatically tracks a leveling ruler and automatically finishes measurement. The digital leveling instrument is characterized in that a flickering luminous indicating lamp is arranged on a scale; the leveling instrument comprises a flickering light source orientating device, a wide angle shooting treatment system, a telescope focusing system and a CCD (Charge Coupled Device), wherein the flickering light source orientating device is used for obtaining the orientation in which the moving scale is located; the wide angle shooting treatment system is used for adjusting the orientation according to the orientation in which the scale is located, is suitable for tracking the moving scale in real time and obtains the accurate orientation and distance in which the scale is located after the scale is fixed; the telescope focusing system is used for aligning to the scale and automatically focusing according to the accurate orientation and distance of the scale; and the CCD is used for obtaining an image of the fixed scale by the telescope focusing system, calculating the elevation and distance of the scale by a CPU (Central Processing Unit) and storing the elevation and distance in a memory.

Description

technical field [0001] The invention relates to a digital level, in particular to a digital level capable of automatically tracking a leveling rod and automatically completing measurement. Background technique [0002] The basic principle of leveling is to use the horizontal line of sight of the level to collide with the readings of the leveling rod vertically erected on two points to measure the height difference between the two points. [0003] There are two methods of leveling: optical leveling and digital leveling. [0004] Optical leveling is currently the most widely used leveling method that can meet various levels. Optical levels and leveling rods are used for measurement. The optical level is mainly composed of a telescope, a reticle, a bubble level, a casing and a base. The telescope is composed of an objective lens, a focusing lens, and an eyepiece. The automatic leveling level is also equipped with an automatic leveling device. Three horizontal wires are engrav...

AI Technical Summary

Problems solved by technology

[0006] The disadvantage of the above-mentioned prior art is that the existing level requires at least two people to complete the measurement, one of whom is responsible for the steering, aiming and focusing of the level, and the other is responsible for moving the leveling rod from one point to another

[0007] Chinese Patent Application Publication No. CN101666642A discloses a digital level for automatic measurement, which uses a wide-angle camera processing system to find the ruler, and then calculates the azimuth and distance of the ruler; The steps of obtaining the ruler from the image and calculating the azimuth and distance of the ruler are cumbersome, and the actual accuracy or reliability is not ideal; in addition, due to the complicated steps of image processing and calculation, the azimuth and distance of the ruler are acquired. This step of the distance takes a long time, which affects the measurement efficiency

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