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论文编号:ZD949 论文字数:18906,页数:44
摘 要
现在国内的环境检测类仪器仪表都是功能比较单一，只能检测某一、二项指标的简单仪器，检测人员采集完数据之后还需回实验室对数据进行分析、计算后整理成报表，有相当大的工作量。随着检测技术的不断发展，检测人员也提出了更多更高的要求，希望一台仪器能够采集并自动分析多项检测指标，并能自动计算成标准状况下的数据，还要求能够在显示屏上立即显示出来，并能够通过网络将检测数据实时传输到远程的计算机上，以一定的格式打印成数据报表等等。在这样的需求下，简单的单片机已经不能够实时的完成这么多的任务，所以我们需要一个实时性高的嵌入式的系统来完成这些本需要一台PC机来完成事情。本设计是采样了ARM7（LPC2200）的控制板、实时操作系统uC/OS和图形用户界面绘制软件UCGUI来组成这一系统。
本论文在CodeWarrior集成开发环境和AXD调试工具在uC/OS实时操作平台上，探讨环境检测仪器中的多任务机制和屏幕菜单的软件方案设计。
关键词：环境检测；仪器仪表；uC/OS；UCGUI
Abstract
Nowadays, the environment detection instruments at home are of comparatively simplex function. They are simple instruments which could only test one or two guide lines. After collecting the data, the surveyors have to go back to their laboratories to put the analysis and the calculation of the data into report reforms. The workload is considerably heavy. With the development of detection technology, more requires of higher quality are proposed. They hope that the instrument could collect and analyze several detection guide lines and then calculate the results into data as the one in standard situation on its own. Also, the data should show on the screen immediately, and pass the data to telecommute computer though the Internet by the real time transmission. Finally, print the data into a certain type of report forms. Under such requirements, simple microcontrollers are not able to afford to accomplish so much work in real time. Therefore, a flushbonding system is needed to do the tasks which were supposed to be done by a PC. This system is integrated by the samples of the key board ARM7(LPC2200), the real-time operation system UC/OS and the interphase drawing software of graphics user UCGUI.
Under the integrated development circumstances of CodeWarrior and AXD debug aids on the plateform of the real-time operation UC/OS, we’ll discuss multitask mechanism of the environment detection instruments and the software project design of the on-screen menu in this article.
Keywords：environment detection；instrument；UC / OS；UCGUI
目 录
摘要……………………………………………………………………………. . .……………..Ⅱ
1 绪论…………………………………………………………………………………………....1
1.1 环境监测概述…………………………………………………………………….….…1
1.2 环境监测仪器概述……………………………………………………………….... ... .5
1.2.1 环境监测仪器的关键技术…………………………………………………….5
1.2.2 环境监测仪器的现状和发展政策…………………………………………….7
1.3 环境监测仪器的发展趋势……………………………………………………. . .……8
1.4 本文研究的思路………………………………………………………………….……10
1.5 研究的意义 ……………………………………………………………………...……10
2 总体设计方案……………………………………………………………………………. . .11
2.1 环境监测仪器的功能实现……………………………………………………….……11
2.2 环境监测仪器的现状和发展政策……………………………………………….... …11
3 嵌入式操作平台搭建…………………………………………………………………….14
3.1 嵌入式实时操作系统的选择………………………………………………………….14
3.1.1 嵌入式操作系统的系统……………………………………………………….14
3.1.2 UC/OS操作系统的简介…………………………………………………. .….14
3.1.3 UC/OS操作系统配置…………………………………………….……. .……16
3.2 任务的安排及任务间的调度设计……………………………………………………17
3.2.1 任务的设计与优先级安排………………………………………………….…17
3.2.2 消息邮箱的创建与使用…………………………………………………….…18
4 监测仪器硬件系统简介…………………………………………………………….. .…19
4.1 监测仪器上位机控制主芯片LPC2200………………………………………….…. .19
4.2 LPC2200CPU的控制对象……………………………………………………….. .…20
5 监测仪软件系统设计与分析…………………………………………………. . ...……21
5.1 监测仪软件系统简介…………………………………………………………………21
5.1.1 软件系统中各层功能………………………………………………………….21
5.1.2 屏幕层次结构说明…………………………………………………………….22
5.2 监测仪底层软件开发…………………………………………………………………23
5.2.1 菜单总体介绍………………………………………………………………….23
5.2.2 前两级菜单…………………………………………………………………….26
5.3 监测仪中间层软件开发………………………………………………………………31
5.3.1 GUI基本组件集分析…………………………………………………………. 31
5.4 监测仪底层驱动分析………………………………………………………………. .36
5.4.1 底层模块驱动简介………………………………………………………….. .36
5.4.2 系统参数存储………………………………………………………………. .36
6 总结………………………………………………………………………………………. . .38
致谢…………………………………………………………………………………………. …..39
参考文献……………………………………………………………………………………... ..40
