Proposal and Implementation of Encounter Data Transmission with Ultrasonic Sensor-Based Active Wakeup Mechanism for Energy Efficient Sparse Wireless Sensor Network

摘要: In this paper, we propose and implement encounter data transmission with an ultrasonic sensor-based active wakeup mechanism for sparse wireless sensor networks (SWSNs), in which sensors are placed sparsely each is unable to communicate directly. We suppose that will be more suitable than a low-duty-cycle SWSNs, since the collecting node moves around randomly sensing field. However, it was not clear whether can short passing-through period. use waking up communication function. also succeed developing real-world wakes only when detects closing of node. evaluate detection ratio average duration our system agricultural application. As result, confirm provide stable between at least 20 s 10 kmph kmph.