【作者】 吴兵；

【导师】 马宝甫；

【作者基本信息】 山东科技大学 ， 控制理论与控制工程， 2005， 硕士

【摘要】 人类进入信息时代,Internet已经成为现代社会重要的基础信息设施之一,是信息流通的重要渠道。地球即将披上一层“电子皮肤”,地球使用Internet传送它的“感觉”,数以百万计的智能温度传感器、压力传感器、大气污染传感器、智能摄像机、智能脑电图仪、各种机器及设备的智能控制器,将监控我们的城市、工厂、大气、船舶、家庭,甚至我们的躯体本身,网络化生存已经不是梦。目前国外的一些高科技公司,正在迅速在其产品中增加标准的Internet技术和网络服务器,以便实现更为开放和经济的嵌入式设备网络互连手段。 本课题的研究工作以设计和实现嵌入式WebServer为目的,就嵌入式操作系统和嵌入式TCP/IP协议栈进行了研究和设计,并在此基础上给出了基于INTERNET的监控系统的实现方案。 论文首先分析了嵌入式系统的结构,以及Internet的基本结构,给出了一种可行的设计方案。解决了嵌入式系统与Internet通信的问题。采用LPC2210(ARM7TDMI)实现了控制方案,并在此基础上完成了系统的硬件设计。系统利用了ARM处理器高性能、低功耗的优点,扩展了平台的通用接口。 论文另一重点在于实现了嵌入式操作系统μC/OS-Ⅱ,其中包括μC/OS-Ⅱ的多任务的调度、内存管理、时钟管理、任务间通信等问题进行了分析。并在此基础上完成了Lwip(Lighted weight IP protocol)的移植和实现,包括网络接口层数据帧的接收和发送、IP层的数据转发协议、TCP层可靠性数据报传输协议以及应用层HTTP数据处理协议。充分利用了LWIP协议栈的一些特点,如精简的代码流程、标准的分层结构和合理的API接口等。 论文的最后就系统在工业控制的应用进行了分析,实现了嵌入式WebServer。系统采用CGI技术实现了嵌入式系统和远程浏览器之间的接口,实现了在浏览器下使用HTML表单远程的系统监控和配置。更多还原

【Abstract】 Over the last few years, the interest for connecting computers and computer supported devices to wireless networks has steadily increased. Computers are becoming more and more seamlessly integrated with everyday equipment and prices are dropping. At the same time wireless networking technologies, such as Bluetooth and IEEE 802.11b WLAN, are emerging. This gives rise to many new fascinating scenarios in areas such as health care, safety and security, transportation, and processing industry. Small devices such as sensors can be connected to an existing network infrastructure such as the global Internet, and monitored from anywhere.The Internet technology has proven itself flexible enough to incorporate the changing network environments of the past few decades. While originally developed for low speed networks such as the ARPANET, the Internet technology today runs over a large spectrum of link technologies with vastly different characteristics in terms of bandwidth and bit error rate. It is highly advantageous to use the existing Internet technology in the wireless networks of tomorrow since a large amount of applications using the Internet technology have been developed. Also, the large connectivity of the global Internet is a strong incentive.The study’s purpose is to realize the Webserver on embedded system. Author has done some research in this field, and brought a feasible plan that how to control and monitor system based on embedded Internet system.In this dissertation, I analyses the structure of Embedded System, and the structure of Internet, and give a feasible plan about Embedded System .This system has a ARM processor-----LPC2210. On the base of processor, System has other hardware such as real-time clock,network interface, flash memory etc. System makes full use of the performance of ARM processor.The another important side of this dissertation is the embedded operating system and TCP/IP protocol , μ C/OS-Ⅱ, an embedded operating system, runs on the System with multi-thread and memory management. Also, System has own TCP/IP protocol stack —LWIP, it runs on the μ C/OS-Ⅱ, LWIP is designed for embedded system and have the most function of TCP/IP protocol.On the last part of this dissertation, System becomes a Web Server, monitors 9133 modules and takes data from these modules. Users can monitor these data by Web browser.更多还原