基于AT89S52单片机DS18D20温度湿度传感器的设计毕业论文.doc

大连理工大学硕士学位论文格式规范 仰恩大学毕业设计（论文） - PAGE IV - PAGE I 基于AT89S52单片机DS18D20温度湿度传感器的设计 摘 要 在现代冶金、石油、化工及电力生产过程中，温度是极为重要而又普遍的热工参数之一，在环境恶劣或温度较高等场合，为了保证生产过程正常安全地进行，提高产品的质量和数量，以及减轻工人的劳动强度、节约能源，要求对加热炉炉温进行测、显示、控制，使之达到工艺标准。如何更快、更准确的控制所需的温度是温度控制技术的关键。本设计按照设计要求，采用功能齐全的protel DXP作为绘制原理图工具，PCB板作为开发板的温度检测器。 本系统采用现在流行的AT89C52单片机，配以湿度传感器，温度传感器，通过A/D模数转换等进行系统控制。 本设计还加入了常用的数码管显示及状态灯显示灯常用电路，使得整个设计更加完整，更加灵活。该设计整体结构小巧，便于携带。 关键字：AT89S52单片机；DS18D20温度传感器；继电器；湿度传感器 PAGE IV Multi-function Temperature Detector Abstract In modern metallurgy, petroleum, chemical and power production process, the temperature is extremely important and universal thermal parameters of the environment or in high temperature and so on, in order to ensure normal production process carried out safely, improve product quality and the number, as well as reduce the labor intensity, energy conservation, the requirements for measuring the temperature of the furnace, display, control, to meet the standards process. How to faster and more accurate temperature control required for temperature control technology is the key. In accordance with the design requirements of the design using full-featured protel DXP as a schematic drawing tools, PCB board as a development board temperature detectors. The present system is popular single-chip AT89C52, with DS18B20 temperature sensor, A/ This design also joined the common LED status lights and display lights show common circuit design making the whole more complete, more flexible. The design of the overall structure of the compact, easy to carry. Key word: AT89S52 Single Chip; AD590 Temperature Sensor; Relays 目 录 TOC \o 1-3 \h \z \u 摘 要 ……………………………………………………………………………………. h I Abstract …………………………………………………………………………………... h II 引 言 ……………………………………………………………………………………. h 1 1系统的设计任务 ………………………………………………………………………….. h 2 1．1温度检测系统设计的基本任务 ………………………………………………… h 2 1．1．1主要性能指标 h 2 1．2温度检测系统设计的扩展任务 ………………………………………………… h 2 1．2．1主要性能指标 h 2 2总体设计 ………………………………………………………………………………