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WSN multi-source data acquisition and real-time synchronization of

Author: ZhangXueHua
Tutor: WanZhou；WuJianDe
School: Kunming University of Science and Technology
Course: Detection Technology and Automation
Keywords: Wireless sensor networks Multi-source data Time synchronization protocol MAC layer protocol
CLC: TP212.9
Type: Master's thesis
Year: 2011
Downloads: 34
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Abstract


This thesis is based on the characteristics and requirements of large-scale structural health monitoring , a WSN data acquisition system for special needs . In this paper , the real - time multi - source data WSN research and multi - source data synchronization acquisition is a feature of this paper , time synchronization protocol and MAC layer protocol design innovation of this paper . First , this study WSN time synchronization protocol suitable for clustering network time synchronization algorithm HLTN . The algorithm in terms of energy consumption , reduce algorithm accuracy premise , most of the communication overhead and computing functions concentrated on the cluster head and Sink node in the active -powered sensor node communication overhead savings as much as possible to solve the biggest problem of the energy cost . NS-2 platform algorithm HLTN , simulation, simulation results show that the time synchronization algorithm has high synchronization accuracy to meet the accuracy requirements of the applications of this article . Secondly, the MAC layer protocol , in terms of energy consumption and scalability considerations , combined with the the CSMA mechanism and TDMA mechanism designed based clustering the network model CDMAC protocol . The performance of this article of the protocol were analyzed, the results indicate that the wake / sleep mechanism greatly reduces the energy losses, extend the life cycle of the node , scalability well . WSN variety of multi-source data type , the design of multi-source data synchronization acquisition program . Time synchronization algorithm and MAC layer protocol to solve the real-time synchronous acquisition and acquisition data sent conflict . And acquisition sensor nodes , the definition of a good the acquisition data packet format for further processing and analysis in preparation by the host computer .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Sensor applications
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