Using general packet radio service（ GPRS） and wireless sensor networks（ WSNs） hybrid communication

use water quality collecting nodes composed of Zig Bee network

the only nodes with GPRS function as Zig Bee network cluster head

which responsible for collecting water parameters. When aerator does not receive control commands within time interval

cluster head node sends a calls information

control center calls offline datas and breeding cycle data to control aerator

which realize the closed-loop control. Except cluster head

the other nodes is not directly communicate with terminal control center. By actual monitoring on pond water quality parameters

the hybrid mode of communication increases oxygen machine control efficiency and reduces energy consumption of the system.