【作者】 龚士强；

【导师】 熊庆宇；

【作者基本信息】 重庆大学 ， 控制理论与控制工程， 2010， 硕士

【摘要】 制造执行系统MES(Manufacturing Execution System)技术己经成为企业特别是离散制造企业信息化解决方案中的关键元素,但目前生产现场数据采集系统的缺陷特别是数据采集终端无法满足当前企业面对日益激烈竞争,生产制造模式正在从单一面向库存生产模式转向面向订单、小批量、多品种敏捷制造生产模式的现状。虽然条形码、无线IC(integrated circuit)卡、射频识别RFID(Radio Frequency Identification)等信息采集传输技术应用于离散制造业的生产车间,但对于离散制造主要是对毛坯或半成品进行制造加工,并不便在物料上进行条码标签的粘贴,而且这种系统模型无法实现计划调度层的任务及时下达以及生产现场工人的工作进度实时汇报和加工零部件的详细信息查询等。还有一种是基于电子看板的数据终端系统模型,但它比较适应于大批量的生产加工车间。本文根据离散制造车间现场生产加工的具体情况,从技术实现、成本控制以及实用价值的角度着重介绍了如何开发一款适合面向订单、小批量、多品种敏捷制造生产模式的离散加工制造现场手持数据终端,该数据终端的硬件平台构建主要以三星公司的S3C2410处理器为核心芯片,采用主板与扩展板相结合的架构设计,软件系统主要基于开源的U-Boot引导程序、Linux操作系统及MiniGUI图形库等。论文的主要工作有:首先完成手持终端硬件平台的构建与设计,在此基础上,针对本文要完成的手持数据终端的特点分析和移植引导程序U-Boot1.1.4、Linux2.6.14内核,在Linux操作系统下实现了无线收发芯片CC2420、按键模块、GPIO模块、LCD显示屏以及网卡等模块的驱动开发并成功挂载到Linux系统中,实现了可读可写根文件系统的YAFFS文件系统的功能;论文的最后介绍了嵌入式图形用户界面MiniGUI构成与原理,并实现了MiniGUI的配置与移植,根据数据采集模块功能描述界面逻辑结构开发了手持数据终端的图形化人机交互界面。更多还原

【Abstract】 Manufacturing Execution System (MES) has become the key elements in the discrete manufacturing information solutions, but the production on-site data acquisition system’s shortcomings, especially the data acquisition terminal can not meet the current coorporate face of increasing fierce competition, production and manufacturing model are from a single production model for the stock shift to order, small-volume,multi-species status of agile manufacturing. Although the bar tab, wireless IC card, RFID and other semi-automatic information collection technology for the production of discrete manufacturing workshop, but for discrete manufacturing mainly for rough or semi-finished products, so it does’t convenient to paste the bar tab on materials.Also thers is one be based on electronic billboards data acquisition system model, but it is more adapted to high-volume production and processing plant.This paper based on the overall of the discrete manufacturing workshop Data-acquisition, from the technical implementation, cost control, as well as practical value point of view focuses on how to develop a Data-acquisition terminal that fit to order, small quantity and variety of discrete agile manufacturing processing field. To build the Data-acquisition terminal hardware main reference Samsung’s S3C2410 development platform, the software system is mainly based on the open-source, for example U-Boot bootloader, Linux operating system and MiniGUI graphics libraries.This thesis introduces the design of hardware platform and porting plan of software in hand port. This thesis researches the theory of the leading program, the key point in developing drive device. Based on those researches above, this thesis analyzes and achieves the transplanting process of U-Boot 1.1.4, the development of drive of device in CC2420 wireless receive chip, GPIO device,LCD device,ethernet device and key device,etc,and also builds a file system based on the characters of the target system. And it introduces the elements of the development of GUI based on MiniGUI. With the application of MiniGUI, has developed a hand-held data acquisition terminals that has a preliminary graphical man-machine interface.更多还原