沈阳理工大学学士学位论文
I 卫星通信手持终端
摘 要
目前，大部分基层单位配发有数量不等的各类低速率野战卫星通信装备，大部分型号装备支持数据业务，但我们发现部队数据通信业务实际利用率很低，主要原因是没有专用数据通信软件和配套野外数据终端，以往部队开通使用数据通信业务，主要是使用操作系统自带的超级终端通信软件和台式机或笔记本电脑实施，存在功能单一、交互性差、收发的勤务报文内容混杂等问题，台式机或笔记本电脑作通信终端便携性、可靠性均比较差，无法适应野外环境条件下通指保障需求。因此，急需研制一套全新的专用数据通信软件和适合野战卫星装备配套使用的通信终端，改善卫星数据通信应用环境条件，提高卫星通信数据业务保障能力
本次设计的卫星智能终端，主要用于军工企业里面进行可靠的实时通信,同时方便携带。该装置主要以ARM11搭载Wince6.0操作系统同时外扩全键盘，触屏系统,蒙恬手写输入法,自主研发通信软件,开机软件自启动等功能,共同构建一个封闭的实时聊天通讯工具,本设计采用卫星通信MODEL和市场的GPRS同一个AT命令集,方便了通信方式的扩展,软件系统采用了游戏开发设计模式,采用心脏跳动运行原理才达到通信的自行运作,同时也使用状态机切换机制,来方便管理各个功能,整体架构易于扩充,方便修改来适应客户的需求,自主研发的外置全键盘采用了STM32微处理器搭载UCOSII操作系统来实现多按键识别和USB接口定义,与外面的固定芯片相比具有可定制性,同时接口采用了市场比较流行的USB通信方式,因此可以快速的运用的其他类似的项目当中,为以后的项目开发打下坚实的基础,此键盘装置还可以实现类似的按键连发功能等一系列外面市场键盘的功能基本都可以实现,通过微软自带的内核编译集成工具和飞凌嵌入式的驱动源码,可以方便的精简自己的wince操作系统,设备也就可以做得等小巧精致.
关键词：Wince系统； USB接口通用键盘 ；通讯聊天软件；AT命令集；数据链路层
沈阳理工大学学士学位论文
II
Abstract(需修改)
This system with STC89C52 micro-controller as collection operation and control of the
core device, partly through a hall sensors will speed the treadmill relatively hall sensor
rotation axis into a single chip can identify the pulse signal and count, the temperature of the
temperature sensor signal into electrical signals temperature to a single-chip microcomputer,
SCM are calculated and converted to temperature with a digital pipe display.
In this topic, the temperature sensor using direct digital output of the DS18B20 sensor,
Holzer144 compare it with other conversion modules together, through the transformation
temperature are transmitted to the host PC display temperature.
This system will command line through the ISP download directly into the STC89C52 in
single chip microcomputer download, all orders are inside the STC89C52 completed,
therefore has the advantage of simple structure, high stability, small investment. Due to
the use of KEIL programming of the system, and the program design also need not too
trivial, can be produced in large quantities for the user to use an auxiliary measuring device.
KEY WORDS: Speed measurement; Temperature measurement; Single chip microcomputer;
Hall sensors; Temperature sensor
沈阳理工大学学士学位论文
III 目 录
摘 要 ........................................................................................................................................... I
Abstract ...................................................................................................................................... II
1 绪论 ...................................................................................................................................... 1
1.1 课题研究的目的及意义 ............................................................................................ 1
1.2 跑步机及其测量装置国内外现状 ............................................................................ 1
1.3 本课题的主要研究内容 ......................................................................................... 2
2 系统的总体设计 ................................................................................................................ 3
2.1 系统的组成 .............................................................................................................. 3
2.2系统的工作过程 ......................................................................................................... 4
2.3 系统硬件设计 .......................................................................................................... 5
2.4 模块介绍 .................................................................................................................. 6
2.4.1 单片机最小系统 ........................................................................................... 6
2.4.2 时钟电路 ........................................................................................................ 6
2.4.3 复位电路 ........................................................................................................ 7
2.4.4 霍尔测速模块 ............................................................................................... 8
2.4.5 体温测量模块 ............................................................................................... 8
2.4.6 显示模块 ...................................................................................................... 10
2.4.7 按键模块 ...................................................................................................... 10
3 相关器件与软件介绍 ..................................................................................................... 11
3.1 单片机 STC89C52 ............................................................................................... 12
3.1.1 单片机的引脚功能 ..................................................................................... 12
3.1.2 单片机内部存储器 ........................................................ 错误！未定义书签。
3.2 霍尔传感器3144 ..................................................................... 错误！未定义书签。
3.2.1 霍尔效应 ........................................................................................................ 21
3.2.2 3144霍尔元件 .............................................................................................. 21
3.3 温度传感器DS18B20 ............................................................................................. 14
3.3.1 技术特性 ........................................................................................................ 14
3.3.2 DS18B20的结构与原理 ............................................................................... 14