摘要
为解决公共设施管理维护困难的问题,提出了基于无线传感器网络技术的公共设施监测系统设计方案。分析了公共设施监测管理网络的系统结构,确定了网络协议,提出了系统的数据采集、数据融合和时间同步算法。数据采集算法为当公共设施未被盗时,汇聚节点定期与其通信;被盗后,公共设施主动发送报警信息。数据融合算法为节点在转发报警信息前判断此信息是否重复收到,如果是则不予转发,时间同步算法为汇聚节点在数据采集的同时对各终端节点进行时间同步。实验结果表明了系统的有效性。
To solve the difficult problem of management and maintenance on public facilities, a design of public facilities monitoring system based on wireless sensor networks is proposed.The network architecture of public facilities monitoring system is analyzed and network protocol is chosen.The algorithms of data acquisition, data fusion and time synchronization in system are put forward.Data acquisition algorithm is that the sink node communicates existing public facilities regularly and stolen public facilities send alarm information constantly.Data fusion algorithm is that nodes refuse to forward repeated alarm information after judging whether the information is repeated.Time synchronization algorithm is that the sink node communicates the other nodes for data acquisition simultaneously for time synchronization.Finally, the feasibility of the system is validated by experiments.
出处
《计算机工程与设计》
CSCD
北大核心
2009年第23期5544-5547,共4页
Computer Engineering and Design
基金
中国地震局教师科研基金项目(20090120)
河北省教育厅科学研究计划基金项目(Z2009407)
关键词
无线传感器网络
公共设施监测管理
数据采集
数据融合
时间同步
wireless sensor networks
public facilities monitoring
data acquisition
data fusion
time synchronization
