With the requirement of environmental conservation and monitor

a wireless sensor networks based online monitor method is proposed for the temperature

humidity and yawp.The peer-to-peer network architecture construction

low power node design of system layer and topology tree based network initial and configuration process is adopted in this system.The geographical character based routing algorithm is also adopted.This system overcomes the problems of network layout complexity and limited

data precision

is highly real time and failure tolerance. Simulation with 1 000 nodes and 100 m communication range shows that the delay of monitor data is less than 600 ms

which satisfies the real-time requirement of environment monitor.