基于ARM的船闸嵌入式数据采集及发布终端系统的设计与实现

发布时间：2018-03-30 08:37

本文选题：嵌入式Linux　切入点：Boa服务器　出处：《江苏科技大学》2014年硕士论文

【摘要】：近些年来，伴随着嵌入式技术、电子技术以及网络通信技术的快速发展与成熟，具有网络通讯功能的嵌入式数据采集设备在信息化，网络化和智能化的今天越来越多地开始进入人们的日常生活，为传统的数据采集和通信设备带来了新的产业机会。本课题在网络通信高度水平发达的大背景下，针对船闸多参数数据采集及信息发布，结合省航道处“数字船闸”的思想，提出了一种基于Internet网络实现数据交互的数据采集设备的设计思想与实现方法。该系统以嵌入式微处理器ARM+嵌入式操作系统Linux为核心思想，在这个系统平台上移植网络服务器与数据库，终端系统接入以太网后，能够完成船闸的多参数数据采集、开关量控制、远程按权限访问及服务信息发布等功能。为了实现这些功能，，本论文根据传统船闸数据采集和发布方式存在的问题，建立了现代智能数据采集和发布平台模型，在分析嵌入式数据采集和发布平台的功能特点基础之上，首先，确立了以韩国三星公司基于ARM920T架构的S3C2440A控制器芯片为核心的硬件开发平台和以完全开源的嵌入式Linux操作系统为基础的软件平台。其次，基于所选择的设备硬件平台，在宿主机环境下一步一步地构建嵌入式Linux的软件开发平台，主要涉及到Linux系统开发平台的搭建，U-Boot启动过程分析及其设计、移植，Linux系统内核的裁剪及其移植、yaffs2文件系统的制作以及AD转换驱动程序的开发；再次，从嵌入式web服务器的设计出发，介绍了嵌入式Web服务器Boa的工作原理及其移植实现、动态网页技术CGI的工作原理和应用、嵌入式数据库SQlite的特点及其移植应用等关键技术；最后，在嵌入式Boa服务器的基础上实现了终端系统的数据采集，建立了数据采集平台的系统网页，结合花生壳的DDNS技术，绑定了嵌入式系统的IP固定域名，实现了数据采集平台的远程监控，访问对象可分权限访问数据和消息添加，验证了该设计方案的可行性。嵌入式数据采集平台系统充分利用现代信息技术、网络通信技术，为船闸系统实现关键信息数字化，提高船闸通航效率和服务质量提供了支撑，对于“数字船闸”模型的构建具有某些参考和推广价值。
[Abstract]:In recent years, with the rapid development and maturity of embedded technology, electronic technology and network communication technology, embedded data acquisition equipment with network communication function is informatization. With the development of network and intelligence, more and more people begin to live in daily life, which brings new industrial opportunities for traditional data acquisition and communication equipment. Under the background of the high level of network communication, this paper aims at the multi-parameter data collection and information release of ship lock, combined with the idea of "digital lock" in provincial waterway. This paper presents the design and implementation method of a data acquisition device based on Internet network, which is based on the embedded microprocessor ARM embedded operating system Linux. The network server and database are transplanted on this system platform. After the terminal system is connected to Ethernet, it can complete the functions of multi-parameter data acquisition, switch quantity control, remote access according to authority and service information release and so on. In order to realize these functions, a modern intelligent data acquisition and distribution platform model is established according to the problems existing in the traditional lock data collection and release mode. Based on the analysis of the functional characteristics of the embedded data acquisition and distribution platform, firstly, The hardware development platform based on S3C2440A controller chip based on ARM920T architecture and the software platform based on fully open source embedded Linux operating system are established. Secondly, based on the selected device hardware platform, The next step is to construct the software development platform of embedded Linux in the host environment, which mainly involves the analysis and design of U-Boot startup process of Linux system development platform. Transplanting the kernel of Linux system and transplanting the file system of yaffs 2 and the development of AD conversion driver. Thirdly, from the design of embedded web server, this paper introduces the working principle of embedded Web server Boa and its transplant implementation. The working principle and application of CGI, the characteristics of embedded database SQlite and its transplant application, etc. Finally, the data acquisition of terminal system is realized on the basis of embedded Boa server. The system web page of the data acquisition platform is established. With the DDNS technology of peanut shell, the IP fixed domain name of the embedded system is bound, the remote monitoring of the data acquisition platform is realized, and the access object can access the data and add the message separately. The feasibility of the design is verified. The embedded data acquisition platform system makes full use of modern information technology and network communication technology, which provides the support for realizing the key information digitization and improving the navigation efficiency and service quality of the lock system. It has some reference and popularization value for the construction of "digital lock" model.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09;TP274.2

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