Firstly

in order to make an effective coverage control of WSN

the algorithm was proposed in WSN called AASR（adaptive adjustment of sensing radius）.Through the nodes choose the optimal coverage adaptively

node’s energy consumption could be reduced

and the coverage had been improved efficiency.Secondly

the result was presented in the simulation and analysis from respects of the effect of adjustment

energy consumption

as well as coverage redundancy.The result showes that AASR can effectively improve the survival time

reduce energy consumption

and increase cover-age.