There is an increasing need to develop flexible, reconfigurable, and intelligent low power wireless sensor network (WSN) system for healthcare monitoring applications. Technical advancements in micro-sensors, micro electromechanical system (MEMS) devices, low power electronics, and radio frequency (RF) circuits and systems have enabled both design and development of such highly integrated system. In this paper, we present the wireless sensor network system, which is separated into control and data paths with different transmission frequencies. The control path sends the power and function control commands from computer to each sensor nodes by 2.4 GHz band. There are four levels in the WSN system. The data path transmits measured data from sensor layer to sensor group layer by 2.4 GHz, and transmits between sensor group, application and system layers by 60 GHz. This hierarchical architecture will make it possible to reconfigurable map application to WSN. The accurate pipeline control system will advance the performance efficiently, and the adaptive low power control system will reduce lots of power consumptions.
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