基于嵌入式Linux的远程数据采集与发布系统

发布时间：2018-03-05 11:29

本文选题：嵌入式Linux　切入点：数据采集　出处：《华中师范大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着电子技术和网络技术的不断发展,嵌入式系统在工业控制领域有了广泛的应用,并且随着数据采集和发布系统的自动化程度提高,我们在一些特殊环境下使用数据采集和发布系统,对提高生产效率和保护工作人员有着重要的意义。本文利用嵌入式Linux和网络技术结合,实现采集远程的设备数据,通过互联网达到远程监控设备的目的。首先,基于嵌入式Linux数据采集与发布系统的分析,设计了系统的总体框图,包括系统运行的硬件平台和软件平台,数据采集模块,Web服务器Boa模块,嵌入式数据库模块。其次,完成了数据采集系统的硬件设计和软件设计。在硬件设计方面,其核心是基于三星公司的ARM920T内核的S3C2440A芯片,选用了256M的NAND FALSH、2M的NOR FLASH以及64M的SDRAM等作为存储器件,并扩展了晶振、复位、电源管理等外围电路和USB2.0、RS232串口等通用接口,扩展了10M/100M以太网接口。在软件方面,移植了源代码开发的Linux操作系统作为系统的软件平台,并制作了可读写的yaffs2根文件系统；程序方面主要是对数据采集应用程序的算法和实现进行了分析介绍,完成了数据采集应用程序的编写。最后,在嵌入式系统下完成了对Boa服务器和SQLite数据库的移植工作,在因特网上的用户通过目标板的IP地址就可以查询远程设备的相关数据。
[Abstract]:With the continuous development of electronic technology and network technology, embedded system has been widely used in the field of industrial control, and with the degree of automation of the data collection and release system, we use the data collection and release system in some special environment, have important significance to improve production efficiency and protecting staff. According to the use of embedded Linux and network technology, realize remote data acquisition equipment, to achieve the purpose of remote monitoring via the Internet.
First, based on the analysis of embedded Linux data acquisition and distribution system, we designed the overall block diagram of the system, including the hardware platform and software platform, data acquisition module, Web server Boa module, and embedded database module.
Secondly, the hardware design and software design of data acquisition system. In the aspect of hardware design, the S3C2440A is the core chip of the Samsung Corp based on the ARM920T kernel, the 256M NAND FALSH, 2M NOR FLASH and 64M SDRAM as the storage device, and extends the oscillator, reset, power management circuit and USB2.0, RS232 serial interfaces, extended 10M/100M Ethernet interface. In software, transplantation of the Linux operating system source code development as software platform of the system, and made a read-write yaffs2 root file system; the procedure is mainly realized and analyzes data acquisition application algorithm, complete the data acquisition application program.
Finally, the migration of Boa server and SQLite database is completed under the embedded system. Users on the Internet can query related data of remote devices through the IP address of the target board.

【学位授予单位】：华中师范大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP274.2;TP368.1

【引证文献】