Abstract:Aiming at the disadvantages of wired transmission of hydraulic parameters of drilling pump and pumping unit by pressure transmitter in oil field, as well as the low efficiency and poor real-time performance of manual regular inspection, a wireless pressure acquisition system using ZigBee communication technology is designed from the actual needs of the field. Its hardware circuit is mainly composed of power supply management module circuit, USB to serial port circuit, MSP430 microprocessor and AD conversion circuit, pt2407 flush film pressure transmitter interface circuit and ZigBee communication module circuit. The design concept of the system adopts star network topology, which improves the anti-interference ability of the system. The laboratory and oilfield field tests show that the relative error of the pressure measurement value of the wireless pressure acquisition system is 0.01% ~ 0.5%, and the effective transmission distance is up to 100 meters, which overcomes the shortcomings of traditional physical wiring. The wireless mode can accurately collect and transmit data. The wireless pressure acquisition system has the advantages of low power consumption, easy networking and wireless, and greatly improves the production efficiency.