Total station and focusing method thereof

Abstract

The invention relates to the technical field of ranging instruments, in particular to a total station and a focusing method thereof. The total station comprises a main sight glass body including a housing, an objective lens, an eye lens, a beam splitting prism, a laser emitter and at least four detectors. The objective lens and the eye lens serving as objects mutually are arranged on the housing;and the beam splitting prism is arranged between the objective lens and the eye lens. The laser emitter is arranged at the side of the beam splitting prism. The detectors are arranged on the housing at the side of the objective lens by using the central line of the objective lens as the center in a circumferential array manner and include filter mirrors and detection blocks; the filter mirrors arearranged above the detection blocks; and the surfaces of the detection blocks are parallel with the surface of the objective lens. According to the invention, the at least four detectors arranged ina circumferential array manner are used for obtain information generated by irradiating a target by the laser emitter and the average value of the data is taken, so that the focusing accuracy is improved; and with the laser emitter, the target reflection is carried out to avoid usage of a reflective prism.

Description

technical field [0001] The invention relates to the technical field of distance measuring instruments, in particular to a total station and a focusing method. Background technique [0002] The total station, that is, the total station electronic rangefinder, is a high-tech measuring instrument integrating light, machinery and electricity, and a surveying and mapping instrument system integrating the functions of horizontal angle, vertical angle, distance and height difference measurement. , because all the measurement work on the station can be completed by placing the instrument once, so it is called a total station, which is widely used in the field of precision engineering measurement or deformation monitoring such as large-scale buildings on the ground and underground tunnel construction; The total station has a high degree of automation, both software and hardware have achieved strong functions, but it still cannot achieve precise and fully automatic measurement. The ma...

AI Technical Summary

Problems solved by technology

However, at present, the photosensitive diode, photodiode and dichroic prism are integrated in the main body of the mirror, resulting in a complicated structure of the main body of the mirror, difficult processing, and high precision requirements. At the same time, a reflective prism is required for cooperation, which leads to high cost. complicated operation

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