基于AT89S51单片机单片机控制空调温度系统 毕业论文.doc

摘 要 本以AD590为采集器、89S51为处理器。 Abstract In this paper, a typical design of intelligent electronic systems, that is, single-chip temperature control air-conditioning system. Single-chip first introduced in various fields of application and development of traditional single-chip temperature control and the use of temperature control were compared, and then to AD590 in accordance with design ideas for the collector, 89S51 for the processor to the device for the implementation of air conditioners through the single-chip assembly language to achieve control of room temperature to complete the design task by the temperature control requirements. In this paper, the temperature control system hardware design brief. Software design with emphasis on some of its detailed analysis carried out: through the use of assembly language , to achieve A / D conversion ,real-time control circuit and so on. Key Words ：Single-chip,air-conditioning,temperature acquisition A / D conversion,compilation. 目 录 摘 要……………………………………………………………………………...Ⅰ Abstract………………………………..…………………...…………………......Ⅱ 目 录……………………………………………………………………………...Ⅲ 第1章 绪论……………………………………………………………...............1 1.1 单片机的应用……………………………………………………............1 1.2 温度控制系统的发展及意义………………………………………........1 1.3 课题的背景……………………………………………………................2 1.4 本次设计的要求……………………………………………………........2 第2 章 特殊器件介绍……………………………………………………...........6 2.1 温度传感器AD590…………………………………………………….....6 2.2 AT89S51单片机…………………………………………………….......10 2.3 光电耦合器 MOC3040……………………………………………………12 第3章 硬件单元………………………………………………………..............13 3.1硬件各单元方案设计与选择……………………………………….........13 3.2 单元电路设计……………………………………………………............16 第4章 软件设计方案………………………………………………..…………19 4.1 系统软件设计说明……………………………………………………....19 4.2 主程序流程……………………………………………………................19 4.3 A/D转换子程序…………………………………………………….........20 4.4 显示子程序……………………………………………………................22 4.5 键盘子程序……………………………………………………................23 4.6 延时子程序……………………………………………………................25 第5章 总结………………………………