High precision all-purpose autogiro and composing method thereof

Abstract

The invention relates to a fast orientation system, which is formed by gyroscope used to ascertain north direction, and automatic following electric instrument used to measure trilinear coordinates. It id formed by automatic gyroscope 3, automatic following electric instrument 1, screw coupling device 2, timing signal channel 4, palmtop 5, power controller 6, GPS RTK receiver 8, GPS base station 9 and fast orientation measuring control software 10. It is suit for subway shield driving, channel piercing, remote weapon fast orientating, city cadastral measuring, craft cabin measuring and mine emergency orientating and so on.

Description

Technical field: [0001] The invention relates to a rapid positioning and orientation system composed of a gyroscope for determining the true north direction and an automatic tracking electronic total station for measuring three-dimensional coordinates, in particular, the gyro theodolite is transformed into a high-precision automatic gyro all-rounder. The instrument is suitable for subway shield tunneling, tunnel penetration, rapid positioning and orientation of long-range weapons, urban cadastral survey, ship cabin survey, mine emergency rescue positioning, etc. Background technique: [0002] A high-precision automatic gyro theodolite with a single orientation standard deviation of less than ±5 seconds is an urgently needed instrument for high-precision engineering surveys and precise initial orientation of strategic missiles. The German high-precision automatic gyro theodolite Gyromat3 is used to guide the tunneling and open the British-French subsea tunnel; each Russian lo...

AI Technical Summary

Problems solved by technology

[0014] ②It only has the function of orientation, but in the underground survey work, it is necessary to introduce the ground coordinate system into the ground, that is, it is necessary to accurately determine the three-dimensional coordinates of the underground point and the direction of the starting edge, which requires additional distance measurement and height measurement and the given instrument to complete

Separate measurements require more manpower and time;

[0015] ③ The instrument needs a long enough waiting time so that the directional measurement is started when the difference between the internal temperature of the instrument and the ambient temperature is less than 5°C. According to the instrument manual, when the temperature difference is 20°C, the waiting time is as long as 103 minutes! Moreover, during the measurement process, once the internal temperature of the instrument changes by more than 0.25°C / min, the measurement will be automatically alarmed and invalidated

[0017] ⑤ Once the automatic instrument breaks down, it will not work at all, even non-automatic measurement will not work

There was a research unit in our country, the highest level reached ± 7 seconds, the temperature effect is significant, it is difficult to achieve high precision, and it is even more difficult to mass-produce; the Japanese bought the automatic gyro part of Gyromat2000 and matched it with their own electronic total station. Japan's automatic gyro theodolite AGP1 was only produced, but the orientation accuracy was reduced to ±6 seconds, and the price was 1.8 million yuan / set! ;

[0019] ⑦ The measurement process of the automatic gyro theodolite is complicated, and many parameters will change during the measurement process

However, the final orientation results and various parameters displayed by the instrument are few, and there are not many changes in various parameters and normal working instructions, which is unfavorable for further research and improvement of instrument performance.

Images