【作者】 邓荣钦；

【导师】 苏义鑫；

【作者基本信息】 武汉理工大学 ， 控制理论与控制工程， 2007， 硕士

【摘要】 随着信息技术和数字技术的发展，特别是对Internet和多媒体通信需求的增长，通信技术的发展主要集中在宽带通信网络和无线通信领域。GPRS是通用分组无线业务的简称，是在现有GSM系统上发展出来的一种新的承载业务，可为GSM用户提供一种高效、低成本的分组无线数据业务。由于GPRS网络具有实时性强、建设成本少、系统容量大、数据传输速率高、通讯费用低等特点，因此将GPRS通信用于监控系统是一种经济、可靠、理想的设计方案。本文主要是针对基于GPRS的无线监控系统进行研究。论文首先介绍了GPRS网络的特点及原理，在此基础上给出了系统终端的总体设计思路，分析了系统总体结构设计的特点，并选择了基于ARM7TDMI内核的S3C4480微处理器做为系统终端的主控制器，以及集成了TCP／IP协议的SIM300做为GPRS通信模块。根据系统终端的总体设计思路，给出了基于GPRS网络的终端系统硬件设计电路图，包括S3C4480最小系统的硬件电路以及通信模块SIM300的相关硬件电路，其中重点介绍了S3C4480与SDRAM和FLASH的连接，以及通信模块的电源和串口电路。为了较好的满足监控系统对可靠性和实时性的要求，终端系统使用嵌入式实时操作系统μC／OS-Ⅱ构成系统软件核心。在操作系统的基础上，根据系统所要实现的功能，将整个系统分为主站通信与处理、用户手机通信与处理、参数设置、定时、编码转换以及异常处理，较好地实现了软件的模块化管理。论文中对各个任务模块的实现做了详细的介绍。结合终端系统的实际需求，编写了基于GPRS网络主站软件。通过主站软件对终端系统实现的功能进行了测试，并对测试结果进行了分析。测试结果表明：系统实现了上位机与现场终端通过GPRS网络的交互，能够进行实时数据的传输。更多还原

【Abstract】 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.更多还原