Mobile Total Station Measuring Platform for Shield Automatic Guidance System

Abstract

The invention relates to a movable total station instrument measuring platform for a shield automatic guide system. A small prism is fixedly centered in the center position of the upper part of a total station instrument through a prism connecting device; the total station instrument is arranged on an automatic leveling base; the automatic leveling base is forcibly centered in the center position of a forced centering support cake; the forced centering support cake is fixedly arranged on a case of a driving system; a step motor is arranged in the case, and is in transmission connection with a gear through a synchronous belt wheel and a synchronous belt; the gear is engaged and connected with a rack; a guide rail and a rack are arranged on a guide rail fixing seat; the driving system is arranged on the guide rail and the rack; a slide rail is arranged at the bottom of the forced centering support cake; a motor control system is arranged on the step motor; the motor control system receives signals of an operation and control device and is used for controlling the rotating speed and the moving distance of the step motor. The measuring passage shielding problem and repeated climbing instrument operation problem of personnel are solved in the shield construction measuring work process; the safety and the work efficiency are improved.

Description

technical field [0001] The invention relates to an automatic positioning and guiding measurement system, in particular to a movable measuring station and a measuring platform used in a shield automatic guiding and positioning measuring system in a shield construction process. Background technique [0002] There are mainly two methods for the orientation and positioning measurement of the existing shield construction: the manual measurement method is to measure each attitude of the shield independently, and there are many ways to realize it. One of the methods is to install a slope plate on the shield body , weld the weight line for measurement on the shield shell, and align the weight with the zero slope position of the slope plate, and then obtain the current value of the shield according to the scale of the offset of the weight on the slope plate after excavation of the shield. Slope value and rotation angle. The method of measuring the center coordinates of the shield cu...

AI Technical Summary

Problems solved by technology

These automatic guidance systems have exposed some problems while embodying their advantages. The more prominent problem is the occlusion problem. The prism system requires a large viewing area due to the large number of prisms, which is prone to prisms being blocked. The laser target system is due to the large number of prisms. It is point-to-point, and requires less visibility, but in the case of curved shields, the laser target will often be blocked

Secondly, the installation, operation and maintenance of some systems are more complicated than manual methods, and it is difficult for ordinary technicians to master them.

[0003] Since the occlusion problem will interfere with the normal measurement work, and in severe cases, it will hinder the use of the automatic guidance system. How to use the existing technology to solve the occlusion problem is a "key technology"

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