GPRS wireless data terminal for heat pump remote monitoring

ZHOU Shu, WANG Jian, XV Ping, JIANG Zhoushu
(Institute of Automation, Hangzhou Dianzi University, Hangzhou 310018, China)

Abstract:In order to solve the problem of the centralized management of multipleunit heat pump, the wireless communication technology based on general packet radio service(GPRS) networks was applied to the remote monitoring of heat pump units, and a set of GPRS wireless data transmission terminal based on air source heat pump units was designed.  Highperformance microcontroller, STM32F103 was taken, which has a Cortex_M3 kernel as the core monitoring unit, and  Huawei GPRS module, EM310 was taken, as the communication module to achieve the data communication function. The data communication is based on TCP / IP protocol. In order to improve the reliability of the heat pump remote monitoring,  a data transfer protocol of application layer data was proposed  and  the corresponding software program was developed. Research results show that this remote monitoring programs has features of lower cost, smaller size, higher transmission speed and less wiring. Moreover, it has high promotion value.
Key words: heat pump; remote monitoring; general packet radio service(GPRS) ; Cortex_M3