NDLI: Intelligent bridge monitoring system based on 3G

Content Provider	IEEE Xplore Digital Library
Author	Li Yundong Zhao Weigang
Copyright Year	2011
Description	Author affiliation: Laboratory of Structural Health Monitoring and Control, Shijiazhuang Tiedao University, Shijiazhuang, China (Zhao Weigang) \|\| School of Information Engineering, North China University of Technology, Beijing, China (Li Yundong)
Abstract	Bridge monitoring system is significant to health diagnosis of railway bridges. This paper proposed and developed a novel architecture for large span bridge monitoring. A 3-level distributed structure is adopted in the monitoring system which includes central server, intelligent acquisition node and local controller. Acquisition nodes are located across the bridge. All the acquisition nodes are managed by one local controller. Every acquisition node has 8 channels which can sample displacement, acceleration and strain of bridge. To get high precision data, a 24bits A/D converter ADS1278 is used. Compare to the traditional method, the proposed architecture has two features. First, the acquisition node is a smart device based on powerful DSP processor. Signals of field sensors are analyzed and realtime compressed in the acquisition node. Only the processing results are sent to local controller through IEEE802.11 wireless network. This operation can relieve load of central server and decrease demand of communication bandwidth. Second, 3G wireless network is utilized to provide enough bandwidth for real-time data transmission between local controller and central server. The intelligent monitoring system has run on a large span railway bridge for six months. Running results show that the proposed system is stable and effective.
Starting Page	426
Ending Page	429
File Size	206796
Page Count	4
File Format	PDF
ISBN	9781612844589
e-ISBN	9781612844596
DOI	10.1109/CECNET.2011.5768621
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bridges Real time systems Distributed acquisition System 3G Process control Bridge circuits Digital signal processing Embedded Linux System Servers Monitoring Data Compression
Content Type	Text
Resource Type	Article

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