毕业设计（论文）-基于单片机的空调温度控制单元设计.doc

目 录 摘要···························································· 3 关键词························································· 3 第1章 系统总体设计方案 1.1 课题背景················································ 3 1.2 设计任务················································ 3 1.3 空调温控器的功能设计·································· 4 第2章 系统硬件设计 2.1 单片机·················································· 5 2.2 温度采集电路··········································· 5 2.2.1 温度采集电路方案选择······························ 5 2.2.2 AD590温度传感器介绍······························ 6 2.2.3 温度采集电路设计·································· 8 2.3 A/D转换电路·········································· 9 2.3.1 A/D转换电路方案选择······························· 9 2.3.2 AD0809芯片介绍··································· 10 2.3.3 A/D转换电路设计·································· 12 2.4 显示电路··············································· 13 2.4.1 显示电路方案选择································· 13 2.4.2 显示电路设计······································ 14 2.5 驱动控制电路·········································· 16 2.5.1 驱动控制电路方案选择····························· 16 2.5.2 光电耦合器MOC3040介绍························· 17 2.5.3 驱动电路设计······································ 17 2.6 键盘电路··············································· 19 2.6.1 键盘输入电路方案选择····························· 19 2.6.2 键盘电路设计······································ 20 2.7 电源电路设计··········································· 21 第3章 系统软件设计 3.1主程序流程图············································ 22 3.2子程序流程图············································ 23 3.2.1 A/D转换子程序····································· 23 3.2.2 显示子程序········································· 23 3.3 程序内容编写··········································· 24 第4章 系统调试 4.1静态测试················································ 32 4.2 通电测试··············································· 32 4.3 动态测试··············································· 32 4.4 联机统调··············································· 32 第5章 结论·························