Energy consumption analysis and energy management strategy for sensor node

The energy of the power supply units for wireless sensor network node is finite and the node is uneasy to replace, so the energy consumption is a key problem in wireless sensor network (WSN). There are two solving ways: the one is adding the energy of power resource to increase the lifetime of network, the other is using the low power design technology to enhance the energy efficiency. However, the increase of energy in a power supply has a bottleneck, so enhancing the network energy efficiency is a fundamental way. The paper aims to the processor module and communication module, has built a power consumption model and proposed an energy management and optimization strategy.