30电气自动化数字式多路温度采集系统-外围接口电路本科学位论文

摘要 随着控制理论和电子技术的进展，工业控制器的适应能力增强和高度智能化正逐步成为现实。其中以单片机为核心实现的数字控制器因其体积小、成本低、功能强、简便易行而得到广泛应用。本文详细阐述了以单片机为核心的温度控制系统。它是利用温度传感器采集温度信号,将信号转化为电压信号后经放大电路放大、A／D转换后送到单片机中，并将其与设定温度值比较，控温至设定值，从而构成了一个可以显示多路温度的系统。最后针对温度显示系统进行了实验仿真，通过对仿真的分析表明本文所述的基于单片机的多路温度采集系统的设计的合理性和有效性。关键词:单片机 多路数据采集 温度显示AbstractWith the improvement of control theory and electric technology, the intelligent control for industry has been accomplishing. The digital controller based on Microcontroller has been applied widely, as its cabinet cubage, low-cost, abundant function, simple and convenient. In this paper, it detailed temperature control system with the core single-chip microcomputer. It is a collection of temperature using temperature sensor signal, the signal into a voltage signal amplification by the amplifier circuit, A / D conversion to the single chip and compared with the set temperature。 Finally, temperature control system for the experimental simulation, the analysis of simulation described in this article shows that the design of temperature control system based on Microcontroller is availability and rationality.Key words: Microcontroller Temperature control system Data Acquisition 目 录绪论11 系统的总体设计方案21.1 设计要求21.2 系统的组成及工作原理22 系统的各个模块简介42.1 主控芯片 AT89C51 单片机42.2 输入电路62.3 键盘电路62.4 显示模块62.5 报警电路设计62.6 UP 监控电路63 输入电路、键盘电路、显示电路83.1 输入电路83.2 键盘电路113.3 显示电路144 电路的仿真与调试174.1 PROTUES 电路原理图174.2 PROTEUS 仿真17 设计总结21谢 辞22参考资料23外文翻译24翻译原文24译文32绪论温度是工业对象中主要的被控参数...