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Method for controlling automatic lifting of gyro-theodolite sensitive part

An automatic lifting and theodolite technology, which is applied in theodolite, gyroscope/steering sensing equipment, gyro effect for speed measurement and other directions, can solve the problems affecting the accuracy and speed of orientation, and achieve the effect of improving the response speed

Inactive Publication Date: 2008-01-16
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

Therefore, the manual lowering of the gyro has higher requirements on the operator, and it will also affect the accuracy and speed of the orientation during precise orientation.

Method used

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  • Method for controlling automatic lifting of gyro-theodolite sensitive part
  • Method for controlling automatic lifting of gyro-theodolite sensitive part
  • Method for controlling automatic lifting of gyro-theodolite sensitive part

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0021] The automatic lifting system of the sensitive part of the gyro theodolite is based on the digital gyro intelligent north-seeking system. The cursor signal is processed by the intelligent north-seeking system to realize the automation of reading; the pulse and direction signals for controlling the linear motor are generated by the DSP (Digital Signal Processor) processing module. The structure of the automatic lifting system of the sensitive part of the gyroscope is shown in Figure 2. The digital control adopts DSP model TMS320F206; the driver is DCS4020 bipolar chopper, which adopts half-step control; the linear motor model is 28F47-05-012, and the motor step length is 0.003175mm; the gyroscope adopts JT- 15 Gyroscope; position detection adopts photoelectric switch H105. The DSP sends pulse and direction signals to the motor driver, the driver con...

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Abstract

The invention belongs to invention relates to a method for controlling automatic lifting of a sensing unit of gyroscopic theodolite, belonging to the technical filed of position and orientation of gyroscopic theodolite. The inventive method can realize automatic landing and lifting of the sensing unit of gyroscopic theodolite, reduce the man-made impact on north seeking measurement, and improve the response speed, repetition accuracy and degree of automation of gyroscopic theodolite. The technical proposal of the invention comprises DSP sends pulse and direction signals to a motor driver, the driver controls the operation of a motor, the landing and lifting of the sensing unit of gyroscopic theodolite is controlled by the linear reciprocating movement of the motor, and the operation speed of the motor affects the oscillation amplitude of the sending unit of gyroscopic theodolite when searing north. The invention is mainly used for controlling the automatic lifting of a sensing unit of gyroscopic theodolite.

Description

technical field [0001] The invention belongs to the technical field of gyro theodolite positioning and orientation, and in particular relates to a method for controlling the automatic lifting of the sensitive part of the gyro theodolite. Background technique [0002] The gyro theodolite can indicate the direction of true north at any measuring point on the ground, mines or tunnels within the range of 75° north and south latitude, and has a wide range of applications in engineering construction surveying, shipbuilding, and military targeting. [0003] The orientation process of the gyro theodolite generally includes two steps: rough orientation (or coarse north-seeking) and fine orientation (or fine north-finding). In the rough orientation process of the gyro theodolite, most of them use the method of manually lowering the sensitive part of the gyro; in the case of fine orientation, the orientation must be achieved by lowering the gyro. When lowering, the operator turns the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C1/02G01C19/00
Inventor 林玉池夏桂锁林明春黄银国
Owner TIANJIN UNIV
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