Design of Intelligent Pressure Instrumentbased on WirelessHART

An intelligent pressure instrument of reliableoperation and with low power consumptionand the functions ofnetwork- wide coordination forefficient power usage and auxiliary diagnostic capability is designed.This design is completed with PIC18LF45K22,an ultra-low power consumption single chip microcomputer as the main controller and in combination of XDM2510H,an ultra-low power WirelessHART RF transceiver moduleand DS2782,an independent power measuring chip.This paper describesthe WirelessHART standard and its advantages in application,exploresthe overall structure of system and specificdesign of both hardware and software,and explains in detail the working principle and characteristics of intelligent pressure instrument.Theoretical analysis and experimentindicate that this design is feasible and applicable.