Abstract
Network coverage is one of the basic issues for information collection and data processing in ZigBee-based wireless sensor networks. Each node may be randomly distributed in a monitoring area, reflecting the network event of tracking in ZigBee network applications. This paper presents the development and coverage evaluation of a ZigBee-based wireless network application. A stack structure node available for home service integration is proposed, and all data of sensing nodes with an adaptive weighted fusion (AWF) processing are passed to the gateway and through the gateway to reexecute packet processing and then reported to the monitoring center, which effectively optimize the wireless network to the scale of the data processing efficiency. The linear interpolation theory is used for background graphical user interface so as to evaluate the working status of each node and the whole network coverage case. A testbed has been created for validating the basic functions of the proposed ZigBee-based home network system. Network coverage capabilities were tested, and packet loss and energy saving of the proposed system in longtime wireless network monitoring tasks were also verified.
Highlights
With recent wireless sensor network (WSN) development, more and more sensors and actuators for monitoring and control are embedded with wireless communication standards, which can be connected together to form an autonomous network
Extensive research is underway using this concept in different areas, such as regional environmental monitoring and management [2], animal presence and pasture time monitoring in an extended area [3], medication management and health care system [4], and, in particular, home network application (HNA)
The actual measurement shows that even though the ZigBee-based intelligent selfadjusting node (ZiSAN) in the monitoring area are arranged tightly, they can access the network once the ZiSANs start
Summary
With recent wireless sensor network (WSN) development, more and more sensors and actuators for monitoring and control are embedded with wireless communication standards, which can be connected together to form an autonomous network. ZigBee-based technology is considered one of the major communication advances in recent years, since it offers the basis for mesh networking, full area coverage, and development of independent cooperative services and applications [1]. Extensive research is underway using this concept in different areas, such as regional environmental monitoring and management [2], animal presence and pasture time monitoring in an extended area [3], medication management and health care system [4], and, in particular, home network application (HNA). An intelligent selfadjusting sensor for smart home services based on ZigBee. Communications is proposed in [5]. References [8, 9] proposed smart and wireless home energy management scenario synchronously. These show potential identification capacities for self-configuration, comprehensive management, and communication capabilities
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