Design of wireless distributed monitoring system for brazing process parameters of four-way valve based on ZigBee

The brazing quality of a four-way valve is greatly affected by the welding equipment and external environment. This results in a key issue to monitor the process parameters. A wireless monitoring system of four-way valve brazing process parameters based on ZigBee is proposed. The system is a ZigBee - based wireless network that includes terminal node and coordinators. For these component, the paper presents the design of the hardware, embedded controlling programs, and user computer interfaces. Compared with the results of the field instrument, the wireless monitoring system can meet the requirements of the four-way valve brazing process monitoring and realize the intelligent brazing.