Research On Wireless Monitor System Based On GPRS

With the development of information technology and digital technology inrecent years, especially with the large requirement of internet and multimediacommunication, the most fascinating technologies are focused on wide bandcommunication network and mobile communication in the field of communicationtechnology. GPRS (General Packet Radio Service) connect wide band network withwireless communication network, so GPRS can be widely applied in internet, remotemobile management and remote control. In this thesis, the application of GPRS indata transform of wireless remote monitor system is discussed in detail.This thesis mainly carries on the research of the application based on wirelessmonitor system of GPRS. The thesis introduces characteristic and principle of GPRSnetwork at first, then provides the overall mentality of designing with terminalsystem on this thesis and analyzes the characteristic of the overall structural designof the terminal system. The thesis chooses S3C44B0 microprocessor based onARM7TDMI kernel as the master controller in terminal system, and SIM300 thatintegrated TCP/IP procotol, as GPRS communication module.According to the overall mentality of designing with terminal system, the thesisprovides the terminal system hardware based on GPRS network and the designing ofthe circuit diagram, including the hardware circuit of S3C44B0 minimum systemand relevant hardwares circuit of the communication module.In order to meet the requirements for the characteristic of dependability andreal-time of the monitor system better, the terminal system uses embedded real-timeoperating systemμC/OS-Ⅱto form the core software of system. On this basis ofoperating system, according to the function that the system should realize, the thesisdivides the whole system into the communication of main website, the handling ofthe user mobile phone, the setting up of the parameter, the timing, the change of codeand the handling of the abnormity. It realizes the management of the software inmodule well.According to the actual demand of the terminal system, the thesis presents the software of main website base on GPRS network. With the software to test thesystem, then analyzes the result of the test. The result indicates that the system canrealize the communication of the superordination machine with the terminal systemby the GPRS network, and the transmission of the real time data.