Due to energy of network is limited

energy consumption evaluation for WSNs node has important meaning. Analyze relationship between power consumption and state of each unit of node

build up power consumption model based on node working states

a method to evaluate survival mode of wireless sensor node is proposed. To validate the method

a typical experimental case of node survival mode is proposed and related parameters are measured and verified on vibration detection platform. Experimental datas show that this method surpasses Petri nets model

it provides reliable basis for energy-saving and optimization of nodes.