Wireless network measurement instrument of oxidation reduction potential based on multi-sensor data fusion of kalman filtering

Oxidation-reduction potential (ORP) is one of the important parameters which directly bears on the quality and efficiency of the sewage treatment process. A kind of ORP wireless network measurement instrument based on Kalman filtering multi-sensor data fusion technology is presented in this paper and the embedded systems is used as control unit of instrument. The instrument uses the depolarization method to dispose the platinum electrode and silver-silver chloride electrode, and adopts Kalman filtering multi-sensor data fusion technology to achieve the measuring result of ORP fast and accurately and to improve the accuracy and the reliability of the measured data. This instrument adopts the ZigBee wireless sensor networks to realize flexible multi-point remote network measurement, and has the storage and communication function of USB and CAN bus at the same time.