Abstract
Aiming at the problems currently exist in the wire communication used in the monitoring of SF6 moisture content parameters, such as complex wiring structure, fixed data collection points and easy occurrence of monitoring blind spots, ZigBee wireless communication technology is adopted according to the characteristics of soft sensing of SF6 moisture content, which applies to the implementation of design scheme of lower computer system for the SF6 moisture content multi-data collection wireless sensor network. At first, collection of relevant data information such as absolute humidity, temperature and pressure of SF6 gas is achieved utilizing a variety of wireless sensors; then flexible increase of sensors is achieved using ZigBee communication protocol and hardware modules. Simulation data show that: the maximum wireless transmission distance of the present design is 110 meters, and the minimum transmission distance 60 meters on condition of presence of obstacles, furthermore, the transmission bit error rate is low; the design also has small monitoring error for SF6 gas parameters, and a good reliability.
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