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Position calibration method and system for measurement and control positioning devices

A positioning device and a calibration method technology, which is applied to measuring devices, instruments, etc., can solve problems such as inability to measure and control the calibration of positioning devices

Active Publication Date: 2016-05-18
CCCC FIRST HARBOR ENG +1
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  • Abstract
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Problems solved by technology

At present, the coordinates of the measurement, control and positioning device in the pipe joint coordinate system are to calibrate the installation position of the measurement, control and positioning device when the pipe joint is in a steady state. However, since the pipe joint is always in a floating state during the installation process, the conventional The calibration method cannot accurately calibrate the position of the measurement, control and positioning device

Method used

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  • Position calibration method and system for measurement and control positioning devices
  • Position calibration method and system for measurement and control positioning devices
  • Position calibration method and system for measurement and control positioning devices

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Embodiment Construction

[0046] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0047] The position calibration method of the measurement, control and positioning device provided by the first embodiment of the present invention is characterized in that it includes:

[0048] S1, install at least four reference positioning devices and at least one measurement and control positioning device on the pipe joint;

[0049] S2, acquiring the coordinates of each of the reference positioning devices in the pipe joint coordinate system as the first coordinates of each of the reference positioning devices; the actual coordinates reported by each of the reference positioning devices as the second coordinates of each of the reference positioning devices ; The ac...

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Abstract

The invention relates to the technical field of engineering survey, in particular to a position calibration method and system for measurement and control positioning devices. The position calibration method for the measurement and control positioning devices comprises the following steps: at least four reference positioning devices and at least one measurement and control positioning device are mounted on a pipe joint; a Bursa model of each reference positioning device is established according to first coordinates and second coordinates of the reference positioning device, and a coordinate transformation parameter in the Bursa model is calculated; a Bursa model of each measurement and control positioning device is established according to the coordinate transformation parameter and measurement and control coordinates of the measurement and control positioning device, and calibration coordinates of the measurement and control positioning device in a pipe joint coordinate system are calculated and output. The method can improve the accuracy of position calibration of the measurement and control positioning devices in the pipe joint coordinate system, so that the obtained calibration coordinates of the measurement and control positioning devices in the pipe joint coordinate system more meet the actual state.

Description

technical field [0001] The invention relates to the technical field of engineering measurement, in particular to a position calibration method and system for a measurement, control and positioning device. Background technique [0002] With the progress of society and the development of science and technology, pipe section tunnels are more and more widely used in water transportation projects. The pipe section method tunnel construction is to sink the prefabricated pipe sections into the water and excavate the trenches in advance. A construction method in which pipe joints are assembled and connected together in water. [0003] At present, the total station method and the GPS method are commonly used methods for locating pipe joints in the water-saving sinking and docking construction. These two methods usually install a measurement tower at the beginning and end of the pipe joint, and each measurement tower is equipped with a GPS positioning system or a prism and other meas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00G01B21/00
CPCG01B21/00G01C25/00
Inventor 林鸣尹海卿李一勇刘兆权张秀振赵坤成益品季浩华徐良陶振杰宋江伟锁旭宏孙阳阳张超
Owner CCCC FIRST HARBOR ENG
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