基于GPRS的数据传输.docVIP

PAGE 毕 业 设 计(论文) GPRS技术在远程传输中的应用与研究 GPRS技术在远程传输中的应用与研究 题 目 系 别 动力工程系 专业班级 测控技术与仪器专业07K2班 学生姓名 王毅 指导教师 李牡丹 二○一一年六月 华北电力大学科技学院本科毕业设计（论文） PAGE I 　 GPRS在远程数据传输中的应用与研究 摘要 随着计算机和网络技术的迅速发展，基于无线局域网的监控系统和数据传输系统取得了很大的发展，但对于环境恶劣、作业点分散、频发小数据量传输的工业应用，目前的工业监控系统难以满足需要，如何实现远程设备之间的自由通信成为研究的热点。 本文简述了当前无线通信技术发展现状，将GPRS无线通信技术和单片机技术相结合，提出适用于工业生产监控的GPRS无线远程监控系统方案。在介绍系统的软硬件开发平台的基础上，设计了一种基于西门子公司的GPRS模块MC39I以及51系列单片机的远程无线数据终端单元，并应用C编程建立了远程监控系统。终端与现场工业设备通过串口相连，在单片机内实现简化的PPP协议，并用单片机驱动GPRS模块MC39I，使其经过GPRS无线网络连接到Internet，最后与Internet上的监控中心电脑建立连接，从而实现工业现场设备与远程监控中心间的可靠数据无线通信。 通过实验调试验证了本系统无线数据传输的有效性。 关键字：无线数据传输；MC39I；单片机 GPRS data transmission in the remote application and research Abstract With the computer and the rapid development of network technology, wireless LAN-based monitoring systems and data transmission system has achieved great development, but for the bad environment, the operating point spread, frequent small amounts of data for industrial applications, the current industrial monitoring is difficult to meet the needs of the system, how to achieve the freedom of communication between the remote device become a research hotspot. This paper describes the current status of wireless communications technology, the GPRS wireless communication technology and microcontroller technology, that are suitable for industrial production monitoring of the GPRS wireless remote monitoring system. Based on introducing the system hardware and software development platform designed a remote wireless data terminal unit based on the GPRS module Siemens MC39I and 51 series of Microcontroller, and the application of C programming to establish a remote monitoring system. Terminals and on-site industrial equipment through the serial port connected to the microcontroller to achieve a simplified PPP protocol and GPRS module with a microcontroller-driven MC39I, so after a GPRS wireless network connection to the Internet, the last with the monitoring center computer on the Internet to establish a connec