Ultrasonic sensor system for ecology observation and timing synchronization of ZigBee network
Ultrasonic sensor system for ecology observation and timing synchronization of ZigBee network
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DOI：
10.1109/icact.2014.6778983
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发表时间：
2014-03
期刊：
影响因子：
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通讯作者：
A. Morikawa;Hiroshi Yamamoto;Maki Yamamoto;K. Yamazaki
中科院分区：
文献类型：
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作者：
A. Morikawa;Hiroshi Yamamoto;Maki Yamamoto;K. Yamazaki
在同一地点部署多个超声波传感器节点的情况下，定时同步至关重要。这是因为超声波传感器应该在适当的时间被供电以防止超声波干扰。针对ZigBee传感器网络提出了一种有害鸟类攻击系统和一种新的定时同步方法。在该定时同步方法中，通过将处理负荷集中到服务器，可以使每个节点上的计算量最小化，并且不受节点数量增加的影响。所提出的方法的评估表明，它充分满足所提出的有害鸟类攻击系统的时间要求。
Timing synchronization is essential in case where multiple sensor nodes with ultrasonic sensors are deployed on the same place. This is because the ultrasonic sensors should be powered at an appropriate timing so as to prevent ultrasonic interference. In this paper, we propose a harmful bird attack system and a new timing synchronization method for ZigBee sensor network. In this timing synchronizing method, by concentrating the processing load to the server, the amount of calculation on each node can be minimized and is unaffected by the increase in the number of nodes. Evaluation of the proposed method has shown that it sufficiently fulfills the timing requirement for the proposed harmful birds attack system.