Energy saving scheme for data acquisition of WSN node

This paper analyzes the energy consuming characteristics of data acquisition in wireless sensor network node. The impaction of node's data acquisition subsystem design is addressed. Schemes to improve energy saving of data acquisition are presented with precondition of guaranteeing performance, which includes choosing and setting working parameters of sensors, setting working parameters of the DC/DC regulator, hierarchical sensing and adaptive sampling. The working parameters of regulator are important to the management for saving energy. The design applying some of the schemes to the sensor module of node with the same typical configuration as MICA2 shows that the schemes are effective to save energy.