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摘 要
本设计是由温度传感器及8031单片机系统构成的温室温度控制系统。通过温度检测电路，对温室温度进行实时检测、并显示出来。我们可以通过拨码盘输入1、2、或3将温室温度控制在室温20℃ ,40℃或50℃。温度控制电路采用可控硅调功率方式，通过 PID算法比较温度检测值与给定值之差，计算出可控硅的接通时间，输出控制脉冲信号，达到改变加热功率的目的，从而实现温度调节。同时此设计还具有显示，报警，控制状态选择等一些辅助功能。
文中系统介绍了本设计的硬件系统连接图，软件流程图，同时简要的介绍了该设计中所用到的各种元器件的主要用途及使用。经理论和实践的证明，该设计有很高的使用价值，且其功能完善，抗干扰能力强.
关键词：热电偶 可控硅 温室 单片机
ABSTRACT
This design is composed by independent temperature and humidity sensor and 8031 single-chip microcomputer. Through independent temperature and humidity recalled circus composed by independent temperature and humidity sensor, and enlarge equipment and A/D alternated department. Then showing it, the number could control the temperature of the warm room, the single-chip microcomputer looks into the temperature of the warm room, the data got from A/D alternation will be sent to the computer, and will be judged and calculated, then output the data, so that we can control the warm power of the electric oven, so that we can achieve the goal of controlling the temperature. The design also has the function of showing, warning and choosing the controlled state.
In the paper, we introduce systematic chant of the hardware and software, also, the paper introduced the main function and use of all kinds of parts briefly. All have been proved by the theory and practice, the design has high ratio performance to price, and its function was perfect, strong disturbance resistant, so it has good pragmatic value and great development in future.
Keywords: independent ; control ; show
目 录
绪论 1
第一章 系统性能指标及方案确定 2
第二章 系统的硬件设计及芯片介绍 4
第一节 硬件系统的设计原则和采用方法 4
第二节 芯片介绍 5
第三章 前向通道的设计 17
第四章 后向通道的设计 23
第五章 人机通道的设
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