Posture compensation method and device based on image measurement and tunnel settlement and deformation monitoring system

A deformation monitoring and tunnel settlement technology, applied in measuring devices, using optical devices, instruments, etc., can solve problems such as high measurement accuracy requirements, and achieve the effects of ensuring measurement accuracy, reducing measurement errors, and improving accuracy

Active Publication Date: 2012-10-03
上海地铁盾构设备工程有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In the process of using a new type of non-contact image sensor for measurement, there is error propagation, which requires a high accuracy of position measurement for each station

Method used

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  • Posture compensation method and device based on image measurement and tunnel settlement and deformation monitoring system
  • Posture compensation method and device based on image measurement and tunnel settlement and deformation monitoring system
  • Posture compensation method and device based on image measurement and tunnel settlement and deformation monitoring system

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Experimental program
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Embodiment 1

[0029] Such as figure 1 As shown, the system of the present invention is that a number of measuring points are set on the tunnels between adjacent two stations, each measuring point is axially arranged, each measuring point is fixed on the inner wall, each measuring point equipment is installed in the measuring station, each The measuring points are connected together through the RS485 bus to form a new tunnel settlement deformation monitoring network.

[0030] The lens and its image sensor B and light source B are respectively installed on both sides of the box of each station in the network. The lens and its image sensor B are used to photograph the light source B of the adjacent previous station. Each station collects and processes the obtained The relative displacement information of adjacent measuring stations is sent to the station-level monitoring system, and the monitoring computer summarizes and analyzes the deformation of the tunnel between the two stations.

[0031...

Embodiment 2

[0033] One of the purposes of the present invention is to measure the angular deflection of the measuring station itself. This embodiment discloses a method for reducing the attitude deflection of the tunnel settlement deformation monitoring system and the structure of the measuring device.

[0034] In order to prevent the influence of external factors, a cross-shaped marker with a certain self-weight is placed in a closed space and fixed in the station box together with the confined space. The light source is set to illuminate the cross-shaped marker, and the lens and its image sensor are also set. It is used to collect the synchronous angle position change of the cross mark in real time due to the position deflection of the external station, so as to measure and determine the angular position change of the station itself, and accordingly compensate the attitude error of the tunnel axial image acquisition system, thereby eliminating the tunnel The overall deformation monitorin...

Embodiment 3

[0048] Based on the idea of ​​Embodiment 1 and Embodiment 2, this embodiment specifically discloses a tunnel settlement deformation monitoring system based on image measurement attitude compensation.

[0049] Such as figure 1 As shown, several measuring points are set on the tunnel between two adjacent stations, and each measuring point is arranged axially. Each measuring station is fixed on the inner wall as a measuring point, and each measuring point equipment is installed in the measuring station. Each measuring station includes two lenses and its image sensor and two light sources, which are respectively the lens and its image sensor B, the micro lens and its image sensor A, the light source B, and the light source A, and one of the lenses and its image sensor B and the light source B is used to install on the side of the large box of the measuring station, the lens and its image sensor B are used to photograph the light source of the adjacent previous measuring station, a...

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Abstract

The invention relates to a posture compensation method and a device based on image measurement and a tunnel settlement and deformation monitoring system, belonging to the technical field of tunnel engineering monitoring. A main device related to the method comprises an image sensor (image acquisition system), a microscope lens, a cross marker, a light source and the like. All parts of the device are arranged in a sealed space. The light source irradiates on the marker, the image sensor (image acquisition system) measures the cross marker suspended in the sealed space to determine the self angle position change of the image acquisition system. The method is used for compensating errors caused by self deflection of the measuring device in the tunnel deformation monitoring and improving the accuracy and the reliability of the monitoring system, and has the advantages that the principle is simple and practical, the application is convenient and the use requirement is met.

Description

technical field [0001] The invention relates to an image-based attitude compensation method and device thereof, and a tunnel settlement deformation monitoring system, belonging to the technical field of tunnel engineering monitoring. Background technique [0002] The deformation of the subway tunnel in operation includes the displacement of the longitudinal axis of the tunnel along the cross section and the change of the shape of the tunnel cross section. When the deformation of the tunnel is too large, it will affect the safe operation of the subway. For this reason, it is very necessary to develop and operate a tunnel deformation detection and analysis system. According to the gradual change and long-term nature of tunnel deformation, real-time data of tunnel deformation is collected and long-term basic data are established. Through time and space fusion of data, a network of tunnel deformation is realized. Publish and establish a tunnel deformation warning mechanism. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16G01B11/26
Inventor 何自强毛建熊肖磊周奇才刘志科张根雷
Owner 上海地铁盾构设备工程有限公司
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