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An Inertial Baseline Measurement Method for Detecting Bridge Deformation

A measurement method and deformation technology, applied in the field of inertial technology engineering application, can solve problems such as difficulty in equipment erection, no track restriction on bridges, and small deformation range, and achieve the effects of improving accuracy, improving measurement accuracy, and improving measurement accuracy.

Active Publication Date: 2016-02-24
HUBEI SANJIANG AEROSPACE HONGFENG CONTROL
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Problems solved by technology

[0007] Aiming at the above defects or improvement needs of the prior art, the present invention provides an inertial reference measurement method for detecting bridge deformation. In order to solve the technical problems of difficulty in erecting equipment, small range of deformation, and no bridge constraints in the existing bridge deformation measurement

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  • An Inertial Baseline Measurement Method for Detecting Bridge Deformation
  • An Inertial Baseline Measurement Method for Detecting Bridge Deformation
  • An Inertial Baseline Measurement Method for Detecting Bridge Deformation

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Embodiment Construction

[0051] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0052] The way to detect bridge deformation based on inertial reference measurement is to rely on the inertial system hardware platform, with the inertial navigation system and odometer as the basic measurement unit, and the GPS signal as the auxiliary, in which the inertial navigation system and the odometer are installed on the measuring car. The system software is installed in the inertial na...

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Abstract

The invention discloses an inertial reference measurement method for detecting bridge deformation, and the method is used for detecting bridge deformation and subsidence. The method comprises a step of planning a track path at the surface of a measured bridge, marking a plurality of reference points on the track path, establishing a reference by using high precision GPS information, and establishing an inertial reference by using an inertial system, a step of collecting the output of the inertial system and the output of an odometer, compensating the output of the odometer and identifying a bridge surface uneven influence test, then carrying out combined dead reckoning, completing the whole test of selected track, carrying out a closed correction process, and finally giving a tested accurate track and calculating the deformation and subsidence of the bridge. According to the method, based on the combination of an inertial navigation system, the odometer and a GPS, by using a three-dimensional inertial measurement mode, and the rapid and continuous measurement of bridge 3D small dynamic deformation is realized without the restrictions of the track and no track.

Description

technical field [0001] The invention belongs to the application field of inertial technical engineering, and in particular relates to an inertial reference measurement method for detecting bridge deformation. Background technique [0002] With the advancement of science and technology and the needs of transportation, many long-span bridges have emerged, especially suspension bridges are favored by people for their large spans, beautiful shapes, and material savings, and have become the first choice for long-span bridges. However, with the increase of the span, from hundreds of meters to kilometers, due to the lack of necessary monitoring and corresponding maintenance, a large number of bridge damage accidents have occurred around the world, causing huge losses to the national economy, life and property. Therefore, effective monitoring of the safe use status of the bridges that have been put into operation to serve the national economy and the people's livelihood, to ensure t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/32
Inventor 陈贵金王勇刚王爱民彭志强廖良斌李亮焦守江潘静陈成罗瑞强
Owner HUBEI SANJIANG AEROSPACE HONGFENG CONTROL
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