The adaptive topology control model is a multi-hop routing for two-tiered WSNs

in each cluster two types of sensors are deployed

using efficient data routing and low cost sensor nodes N to implement the tasks.Their information is transmitted to sink nodes S

and random infoemation is eliminated by all Ss cordinating work to transmit the data to the basic station BS.For the coverage depended on the operations of sink nodes

their power consumption is the key factor in the networks.The power efficient to increase the networks lifetime is considered

making the routing selection through the power consumption of the node then to change the data flow of the whole system.