针对传统水坝安全监测系统网络通信过程中,传输节点由于信道扫描和排队等待造成的数据传输时延长、传输效率低的问题,在模糊层次分析法(FAHP)的基础上,提出ZigBee感知组网传输优化设计方法。首先构建水坝安全监测系统组网结构,然后根据模糊层次分析法计算传输节点权重,并由权重结果分析节点有效性和传输顺序;最后重置节点组网结构和数据传输路径,实现监测系统传输优化设计。仿真结果和沩水坝安全监测工程项目应用实例表明,该优化设计方法能够延长系统运行监测时间、提高数据传输效率,适用于不同监测系统中传感路由节点的组网传输优化设计。
Abstract
To reduce the delay of data transmission and improve the transmission efficiency in the network communication of traditional dam monitoring system due to channel scan and queuing, we propose an optimized method of ZigBee networking integrated with Fuzzy Analytic Hierarchy Process (FAHP). Firstly we built a dam monitoring transmission network, and then calculated the weights of transmission nodes by using FAHP, based on which we analyzed the nodes’ efficiency and transmission orders in the network. Finally, we completed the optimization by resetting networking structure and data transmission path. Results of both simulation and engineering application in Weishui monitoring project indicate that the proposed method is able to improve monitoring time and data transmission efficiency and is suitable for network optimization of nodes in various monitoring systems.
关键词
水坝监测 /
模糊层次分析法 /
ZigBee组网 /
传输延迟 /
优先级机制
Key words
dam monitoring /
FAHP /
ZigBee networking /
transmission delay /
priority rating
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参考文献
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基金
国家自然科学基金青年基金项目(61603131)
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