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1、基于单片机的多点无损温度监控系统摘要随着计算机技术及嵌入式技术的高速发展，人们需要一种新的更加灵活的温度监控系统：这种系统能够应用在一些不适合人接近的环境下对环境温度进行远距离监测：并且可以利用因特网，随时通过计算机的网页实时观测环境温度的变化。本论文研究了目前远程温度监控系统的发展现状，结合目前远程温度监控系统的不足，利用嵌入式系统技术和计算机技术实现了一种基于因特网的远程温度监控系统，用户可通过因特网利用浏览器登陆嵌入式 Web 服务器实现对远程现场温度数据监控。本文研究的整个系统以 8 位微控制器为主处理器，通过程序直接驱动网络控制器 ENC28J60，通过 SPI 协议传输的 EEPR
2、OM 做为存储网页的存储设备。并可通过液晶显示器显示系统 IP 及传送的数据等相关信息，还可以用 PC 机上的超级终端通过串口对系统的 IP，网关，子网掩码等进行配置。完成后的终端支持 HTTP、TCP、UDP、FTP 等常用网络协议，支持 PING 命令并可给予响应，可以通过 IE 直接浏览存放在存储器中的网页，并可以能过网页上的按钮控件来控制远程的开关量，从而实现远程数据采集和远程控制等功能。嵌入式网络服务器为传统的非标设备上网提供一个协议转换工具，并为用户管理这些设备提供软硬件支持是嵌入式以太技术的关键。嵌入式以太网技术创新性地提出了低价微控制器(MCU)这一理念，使被监测的设备与以太网
3、的无缝连接有了可行方案。目前嵌入式系统中除部分 32 位处理器以外，大量存在的是 8 位微控制器，这类处理器在各种智能设备中得到了广泛应用，而且价格低廉，如果能够用它实现以太网接入技术，将会带来巨大的经济效益。本设计完成了对系统的需求分析，各模块的功能分析，硬件应用电路的设计及实现，网络控制器驱动程序的编写，相关网络协议的在嵌入式系统上的移植，以及整个系统的联机调试及测试等工作。测试结果表明本设计完成了远程温度监控的基本功能，证明了该系统的可行性，达到了预期目标。关键词：单片机；嵌入式以太网；WebServer；TCp/lp 协议；远程监控；多点无损温度监控；系统设计AbstractAbstr
4、actWith computer technology and the rapid development of embedded technology , people need a new, more flexible temperature monitoring system： This system can be used in some not suitable for people close to the ambient temperature environment for remote monitoring ： and can use internet , at any we
5、bsite through your computers real-time observation of changes in ambient temperature . This paper investigates the current development of remote temperature monitoring system status , combined with the current lack of remote temperature monitoring system , the use of embedded systems technology and
6、computer technology to achieve a kind of Internet-based remote temperature monitoring system , the user can log in via the Internet using a browser embedded Web Server to realize the remote -site temperature monitoring data .In this paper, the entire system with 8 -bit microcontroller -based process
7、or driven directly by the program network controller ENC28J60, the EEPROM via the SPI protocol to transmit stored pages as a storage device . And through the LCD display system IP and data transmission and other related information , you can also use HyperTerminal on the PC via the serial port on th
8、e system s IP, gateway, subnet mask , etc. to be configured. After the completion of the terminal supports HTTP, TCP, UDP, FTP and other commonly used network protocol , and can be given to support the PING command response , you can browse directly through IE pages stored in memory and can be able
9、to live on the page buttons to control the remote control switch , enabling remote data acquisition and remote control functions.Embedded web server for the traditional non-standard equipment to provide an Internet protocol conversion tool, and for users to manage these devices provide hardware and
10、software support is embedded Ethernet technology is the key . Embedded Ethernet technology innovation put forward cheap microcontroller (MCU) the idea that the monitored equipment and seamless connectivity with Ethernet options. Currently embedded systems in addition to some 32-bit processors other
11、than the presence of a large number of 8-bit microcontrollers, such processors in a variety of smart devices have been widely used , and the price is cheap, if we can use it to achieve an Ethernet connection into the technology , will bring enormous economic benefits.The design is completed the syst
12、em requirements analysis, functional analysis of each module , hardware application circuit design and implementation, network controller driver for the preparation, related network protocols on the transplant in embedded systems , as well as the entire system online debugging and testing work . Tes
13、t results show that the design completed the basic functions of remote temperature monitoring to prove the feasibility of the system to achieve the desired objectives.Keywords： microcontroller ： embedded Ethernet ： WebServer： TCp / lp agreement ： remote monitoring ： multi-point temperature monitoring lossless ： system design目录目录第 1 章 绪论.51.1 课题的背景 .51.2 嵌入式以太网技术 .51.2.1 嵌入式技术及其发展概述 .61.2.2 以太网技术的发展 .71.2.3 嵌入式以太网技术及研究现状 .71.3 嵌入式 Web 服务器概述 .81.4 无线传感器网络概述 .91.5 国内外研究现状.91.6 本文目的和组织结构 .10第 2 章嵌入式 WebServer 硬件平台设计.112.1 方案论证及选择 .112.2 硬件总体设计 .122.3 系统主要芯片介绍 .
