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Gyro positioning measuring method

A new method, gyroscope technology, applied in gyroscope effect for speed measurement, gyroscope/steering sensing equipment, measuring device, etc., can solve the problem of wire precision reduction and achieve the effect of simplifying the directional measurement process

Inactive Publication Date: 2008-10-15
CHANGAN UNIV
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Problems solved by technology

[0002] Gyro directional measurement is an important part of penetration measurement work such as tunnels, mines, and subway construction. In the penetration project, branch wires are used for directional measurement, but as the branch wires continue to extend, the accuracy of the wires will be affected by angle measurement and distance measurement errors. cumulative and decreasing

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Embodiment Construction

[0019] Such as figure 1 , 2 As shown in and 3, OC is the direction of the alignment target survey line; Ox is the coordinate north direction; ON is the true north direction; OT is the gyro north direction; OL is the zero direction of the horizontal dial of the total station; OM is the gyro motor axis direction.

[0020] There are known points O and C outside the hole, and the plane coordinates are (x O ,y O ) and (x C ,y C ); the plane coordinates of O′ in the cave are (x′ O ,y' O ).

[0021] Calculate the coordinate azimuth angle ∠α of the known measuring line outside the cave according to the plane coordinates of the known points O and C outside the cave OC ;

[0022] Install the gyro total station at the known point O, start the gyro motor, measure the angle ∠TOM between the gyro motor axis and the north direction of the gyro, repeat the measurement three times, and take the average value;

[0023] Sight the target point C with the gyro total station and calculate ...

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Abstract

The invention relates to a novel method for gyroscope orientation measurement. The method uses a gyroscope total station consisting of a total station and a gyroscope for measurement. The method comprises the following steps that: firstly, on a known measuring line outside a hole, the levelness of the total station is calibrated according to coordinate azimuth and gyroscope orientation measurement values; secondly, gyroscope orientation measurement is carried out on an undetermined measuring line inside the hole, and the read numbers of the gyroscope and the total station are added up; finally, the calculation result is added into the difference of meridian convergence angles between measurement sites inside and outside the hole, and then the coordinate azimuth of the measuring line inside the hole can be obtained. Compared with the prior gyroscope orientation method, the method can finish the measurement of the coordinate azimuth of a traverse side inside the hole without calculating meridian convergence angles and instrument constants.

Description

technical field [0001] The invention relates to a new method for gyro orientation measurement with a gyro total station, which can be used for gyro orientation measurement in large-scale tunnels, urban subways, mines and other through projects. Background technique [0002] Gyro directional measurement is an important part of penetration measurement work such as tunnels, mines, and subway construction. In the penetration project, branch wires are used for directional measurement, but as the branch wires continue to extend, the accuracy of the wires will be affected by angle measurement and distance measurement errors. accumulated and decreased continuously. In order to ensure the smooth progress of the penetration project, it is necessary to conduct a gyro orientation measurement after the branch wire is laid forward for a certain distance to correct the error of the branch wire. [0003] The existing gyro orientation measurement first needs to determine the instrument cons...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/00G01C1/00
Inventor 杨志强石震田永瑞
Owner CHANGAN UNIV
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