Abstract: In order to use the wireless sensor network in the large-scale thermal power plant equipment monitor,this paper proposes a TDM A network protocol with low power consumption according to the environment of the power plant.This protocol has balanced energy strategy with cluster head rotation,and made more nodes into dormancy to save energy with the conditions to guarantee the effective sampling rate.It is proved that this protocol extends the survival time of wireless sensor monitoring network effectively,and has reliable data inquiry report.

Key words: large-scale thermal power plant, wireless sensor networks, TDMA, low power consumption