【作者】 葛飞航；

【导师】 李长河；

【作者基本信息】 西安理工大学 ， 计算机应用技术， 2005， 硕士

【摘要】 监控与数据采集系统(SCADA)是以计算机为基础的生产过程控制与调度自动化系统本文分析了无线数据传输技术存在的问题、SCADA系统的国内外现状及发展趋势,详细探讨了GPRS技术和嵌入式RTLinux系统的特点。介绍了一种基于GPRS和RTLinux的SCADA系统总体设计思想、实现方案以及系统的总体结构。 该系统主要由监控中心、远程嵌入式监控终端、数据通信网络三部分组成。监控中心和远程嵌入式监控终端通过Internet和GPRS网络联系起来实现通信。监控中心采用B/S、C/S混合的方式在Windows平台上建立具有图形界面的监控程序,实现对数据和图像监控等功能,并通过SQL语言实现数据库管理。 通过32位的ARM微控制器、FLASH ROM、SDRAM等外围芯片和有关硬件接口构成监控终端的嵌入式计算机硬件平台。选用嵌入式RTLinux操作系统,组成通用的嵌入式计算机软件平台,保证系统的实时性和便于开发和支持网络功能。监控终端通过GPRS模块接入移动网络,再通过移动网关接入Internet,来实现数据的传输。 试验证明该解决方案具有稳定可靠、实时性强、传输速度快、费用低等优点,实现了预定的目标。更多还原

【Abstract】 The Supervisory Control And Data Acquisition system (SCADA) is a production course control and attemperament automatization system based on computer. This paper analyzes the existent problem in wireless data transmission technology and SCADA system’ s tends and development both at home and abroad at first. We particular discuss the GPRS (General Packet Radio Service) and embedded Linux System’ s character. A new settle scheme based on GPRS and embedded RTLinux System is put forword in the paper and we also introduces the framework’ s design idea, structure and implement scheme.The system consists of three subsystems: monitoring center, monitoring terminal and monitoring network. The first two subsystems communicate through the monitoring network- Internet and GPRS. The monitoring center through a graphical interfaces control process based on windows system and technologies of B/S and C/S providing functions such as monitoring of image, data and database and realizing database management via SQL language.The monitoring terminal is embedded system consists of 32bit ARM micro-controller, FLASH ROM, SDRAM, other periphery chip and hardware interface. The embedded system adopts embedded OS-RTLinux as the universal embedded software system so that the development is more convenient and the real time character can be realized. It is connected to the motion networkthrough a GPRS modem and connected to the gateway to Internet.The experiments proved this scheme has the character of steadness, reliability, fast data transmitting, and cheap. It achieved the scheduled object.更多还原