Design of environmental monitoring system with mobile sink

The environmental pollution is a problem which must be resolved in the course of the continuous economic development,it is specially necessary how to take the effective and convenient steps to monitoring environment.A remote environmental monitoring system with wireless sensor networks is designed.To solve the frequent changes of energy and the easily occurring"energy hole"problem,the mobile sink is employed.Experiment results show that the environmental monitoring system based on the mobile sink can prolong the network life time,and ensure the average energy consumption of each node.And the network packet loss rate and delay close to the environmental monitoring system based on the fixed sink.