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Remote automatic real-time bridge monitoring system and method based on MEMS technology

A real-time monitoring system, bridge technology

Inactive Publication Date: 2017-02-15
瀚阳国际工程咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of technology only effectively solves the problems of data exchange between the on-site monitoring subsystem and the remote monitoring center, distributed storage of data, and equipment expansion. It does not mention the accuracy and real-time performance of bridge data collection. It is difficult to evaluate the bridge health status

Method used

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  • Remote automatic real-time bridge monitoring system and method based on MEMS technology
  • Remote automatic real-time bridge monitoring system and method based on MEMS technology
  • Remote automatic real-time bridge monitoring system and method based on MEMS technology

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Experimental program
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Embodiment

[0033] Such as figure 1 As shown, the bridge remote automatic monitoring system of the present invention includes sensors, transmission network, data center, bridge health monitoring command center and mobile client, wherein the sensors include MEMS inclination sensors, MEMS acceleration sensors and other sensors, and other sensors include strain gauges, Cable force meter, large range displacement meter and temperature and humidity sensor, etc. MEMS inclination sensors and MEMS acceleration sensors are used to monitor the inclination, vibration and deflection of the bridge in real time. All sensors are equipped with signal acquisition and wireless transmission modules, and are connected to the transmission network respectively, and the monitored bridge data information is sent to the data center through the transmission network; the data center analyzes and processes the bridge data information to evaluate the health of the bridge Status, bridge health monitoring command cent...

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Abstract

The invention discloses a remote automatic real-time bridge monitoring system and method based on an MEMS technology. The system comprises an MEMS inclination angle sensor, an MEMS accelerometer, a transmission network and a data center, the MEMS inclination angle sensor monitors inclination of bridge members so as to obtain the static flexibility of a bridge under a load effect, the MEMS accelerometer monitors the acceleration so as to obtain a dynamic flexibility function and the natural vibration frequency of the bridge, the MEMS inclination angle sensor and the MEMS accelerometer send monitored bridge data to the data center via the transmission network, and the data center analyzes and processes the bridge data, and evaluates the health condition of the bridge. According to the monitoring system and method, the static flexibility and dynamic flexibility of the bridge floor as well as the gradients of bridge tower, floor and piers can be fit and measured, the health state of the bridge can be evaluated according to power response of the bridge, and important basis is provided for diagnosis on bridge damage and timely maintenance.

Description

[0001] Technical field: [0002] The invention relates to the field of bridge monitoring, in particular to a bridge remote automatic real-time monitoring system and method based on MEMS technology. [0003] Background technique: [0004] At present, most of the domestic monitoring of bridges still uses manual operations to measure, record, analyze and process relevant data. This monitoring method has many disadvantages. For example, it takes a long time to complete a bridge monitoring and it is difficult to maintain The consistency of the working status of the data at each measuring point; it is difficult to eliminate the deviation caused by the influence of other factors such as temperature on the measured data at different times; due to manual work and strong subjectivity, human error or even error is inevitably introduced, and the data processing flow Complicated; some bridge measurement activities require high-altitude and water-based operations, and there are high operatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00
CPCG01M5/0008G01M5/005G01M5/0066
Inventor 孙峻岭邱波刘其军蔡文举徐明
Owner 瀚阳国际工程咨询有限公司
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