关键词: 无线传感网, 低功耗设计, 集成电路

Abstract: Base on traditional integrated circuit (IC) low power methods, the authors propose three low power technologies for further research and take an implementation of WSN sensor node as an example. At system level, the authors present an optimum scheme combined with compiling technology and a hardware structure which provides special low power modes for WSN. At circuit level, considering clock placement in arithmetic mapping phase, clock operators in collaboration with IC operator design methodology (ODM) is proposed. A low power design of WSN sensor node is implemented to verify the low power technologies presented above. The testing results show that WSN sensor node consumes 167 μW at chip level and PCB system 1.035 mW at PCB system level in deep sleep mode by the three methods.

Key words: wireless sensor network, low power design, integrated circuit