Wireless inclination angle measurement system applied to underground tunnel detection

An underground tunnel and measurement system technology, which is applied in the direction of measuring devices, measuring inclination, signal transmission systems, etc., can solve problems such as large temperature changes

Inactive Publication Date: 2013-04-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to factors such as the harsh environment of underground tunnels, large temperature changes, and frequent vibration disturbances, there is currently no effective combination of micromechanical systems...

Method used

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  • Wireless inclination angle measurement system applied to underground tunnel detection
  • Wireless inclination angle measurement system applied to underground tunnel detection
  • Wireless inclination angle measurement system applied to underground tunnel detection

Examples

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Effect test

Embodiment 1

[0030] Embodiment 1: as figure 1 As shown, the wireless transmission nodes A, B, C, D, E, and F of the wireless inclination measurement system in the present invention are mainly installed on the segment of the tunnel lining ring, including the top block, the adjacent block, the standard block, the bottom block and the block Different parts such as longitudinal joints formed by circular spiral connections between blocks; each node transmits data wirelessly, and the data information sent by the wireless receiving node is aggregated and uploaded to the computer terminal to form a wireless inclination measurement system. The wireless inclination measurement system of the present invention can measure the inclination angles of various parts in the tunnel segment in real time, and obtain the actual deformation of the segment through combined calculation; filtering, anti-interference processing and temperature compensation are performed in the sensor to remove vibration noise and tem...

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Abstract

The invention belongs to the field of underground tunnel environments, and in particular relates to a wireless inclination angle measurement system applied to underground tunnel detection. The wireless inclination angle measurement system comprises at least one wireless sending node and a wireless receiving node, wherein the wireless sending node consists of a micro-electromechanical system (MEMS) inclination angle sensing module, a pressure stabilizing module, an analog-to-digital (A/D) conversion module, a first micro processor, a temperature sensor, a first wireless transmitting and receiving module and a first power module; the wireless receiving node consists of a second wireless transmitting and receiving module, a second micro processor and a second power module; and the first wireless transmitting and receiving module is connected with the second wireless transmitting and receiving module through a wireless network. The wireless inclination angle measurement system can meet a measurement requirement on high precision by performing temperature compensation, filtration and interference resistance on inclination angle information in the wireless inclination angle measurement system; and tunnel structure change can be monitored accurately and effectively in real time by data transmission by the wireless network.

Description

technical field [0001] The invention relates to the technical fields of micromechanical system (MEMS), wireless sensor network (WSN) and inclination angle measurement, in particular to a wireless inclination angle measurement system applied to underground tunnel detection. Background technique [0002] With the vigorous development of urban rail transit, subway, as an important part of modern urban transportation system, plays an increasingly prominent role in alleviating traffic pressure in cities, especially megacities, and evacuating urban population. Due to the influence of factors such as stratum movement and the complexity of rock-soil media, nearby building construction loads, and the long-term cycle of subway train vibration, the tunnel wall will have a certain offset. When the deviation exceeds the safe range, major accidents such as landslides and flooding will occur in the tunnel, which endanger the safety of people and property. Therefore, the real-time monitori...

Claims

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Application Information

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IPC IPC(8): G08C17/02G01C9/00
Inventor 何斌纪云黄宏伟沈润杰蔡蜜李刚
Owner TONGJI UNIV
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