Abstract: This paper studied the application of FPGA，CPLD，industrial bus and ZigBee in the photovaltaic networking from the angle of internet of things. It was found that the existing research had the problems of narrow access range，high cost and high energy consumption. This paper presented a scheme of photovoltaic wireless data acquisition based on radio frequency（RF）time-sharing communication. The cost，efficiency and power consumption of the scheme were analyzed theoretically. The ladder transmission power was designed to further reduce the power consumption. The writer designed the photovoltaic wireless data acquisition system based on RF，and use NS2 simulation to verify that the system was better than ZigBee scheme in power consumption，efficiency and cost.

Key words: radio frequency（RF）, low-power, NS2, ZigBee