Differential global position system (GPS) orientation azimuth introduction method

A GPS antenna and GPS receiver technology, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve the problems of weak light, great influence of measurement results, difficulty in receiving signals, etc., and achieve the effect of reducing operation requirements

Active Publication Date: 2012-12-12
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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AI Technical Summary

Problems solved by technology

When the traditional theodolite is used to "sight" or "align" azimuths in the field at a long distance, the lig

Method used

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  • Differential global position system (GPS) orientation azimuth introduction method
  • Differential global position system (GPS) orientation azimuth introduction method
  • Differential global position system (GPS) orientation azimuth introduction method

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Embodiment Construction

[0027] A method for introducing a differential GPS orientation and azimuth according to the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] A kind of differential GPS orientation bearing introduction method of the present invention is specifically as follows:

[0029] (a) Fixed station setup

[0030] Such as figure 1 As shown, a tripod 2 is established, and a fixed station GPS antenna 1 is installed on the tripod 2, and the fixed station GPS antenna 1 is connected to the fixed station GPS receiver 4, and the fixed station GPS receiver 4 is connected to the transmitting station 3;

[0031] (b) Setting of the main moving station

[0032] Such as figure 2 Shown, mount handle 8 on theodolite 11, mount connecting rod-7 on handle 8, mount main movement station GPS antenna 5 on connecting rod-7, main movement station GPS antenna 5 connects main movement station GPS receiver 13, main movement statio...

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Abstract

The invention provides a differential global position system (GPS) orientation azimuth introduction method which comprises the steps of (a) fixed station arrangement; (b) main movable station arrangement; (c) movable reference station arrangement; and (d) differential GPS orientation azimuth introduction. The differential GPS orientation azimuth introduction method solves the problem existing in long-distance alignment and has the advantages of being capable of adapting to long-distance orientation, solving the problem of difficult alignment caused by influence of atmospheric visibility of more than 10Km and atmospheric disturbance, reducing operation requirements of operators, reducing requirements for meteorological conditions and being capable of working except for thunderstorm weather. Due to only one theodolite, protective measures can be easily taken. In addition, due to aligning to the reference standard real object, the differential GPS orientation azimuth introduction method can work except for thunderstorm weather.

Description

technical field [0001] The invention relates to the design of measuring and calibrating appliances and instruments, in particular to a method for introducing differential GPS orientation and azimuth. Background technique [0002] "Differential GPS orientation" refers to the use of GPS receivers to measure the longitude, latitude and elevation of two points on the ground at a certain distance, and make a difference to calculate the azimuth of the line connecting the two points. "Difference" can reduce common errors in positioning, such as: satellite orbit error, satellite clock error, ionospheric effect, tropospheric effect, etc., and improve orientation accuracy. [0003] Differential GPS has high orientation accuracy, wide application range, and can adapt to long-distance, high and low temperature, strong sunlight, ice and snow and other field environmental conditions (but lightning protection is required), strong mobility, easy to carry and use, no need to set measurement ...

Claims

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Application Information

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IPC IPC(8): G01S19/41
Inventor 周玉堂李永刚商秋芳张忠武
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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