Aiming at characteristics and requirements of ozone in preservation and disinfection

design a kind of monitoring system based on multi-sensor data fusion technology to monitor ozone concentration strictly. The system uses sensor with independent and patented level for data collection

and by building up wireless sensor networks（ WSNs） to realize real-time monitoring on ozone concentration. In order to improve accuracy of datas

first of all

eliminate suspicious datas

and then select appropriate algorithm for data fusion. Simulation results show that fusion value obtained by data fusion is more stable

high reliable

and precision of ozone concentration collection can be improved by choosing suitable data fusion algorithm.