Study and Design of Wireless Data Communication Experiment Teaching System Based on GPRS

A wireless data transmission experimental teaching system based on GPRS(General Packet Radio Service) is studied in this paper. GPRS network is the platform for remote data transmission in the system. The system consists of three parts, which is remote communication terminal, GPRS network and communications server. Embedded systems based on ARM is used in the design of wireless data terminal.This system based on embedded CPU ARM9 and GPRS module accomplishes the transmission and supervisor of remote data. The type of the GPRS module is SIM companies SIM900 GPRS module. The design of system software includes terminal software and communications server software. Client/server model is the communication model of the data communication between data terminal and the server. Terminal will establish TCP or UDP connection to the communication server as soon as the system is started. Communications server receives the data using Windows socket. Communications server establishes connections to communication terminals through reliable GSM wireless communication network. The advantage of the system is that the operation status of each terminal can be obtained by accessing the communications server. Students and communication technicians can understand and master the GPRS wireless data transmission technology quickly through the experiment teaching system.