多传感器仪器设计.doc

 机电综合应用 题 目： 系部名称： 系 专业班级： 学生姓名： 学 号： 指导教师： 教师职称： 2011 年月 摘要 本设计主要运用单片机和传感器，实现了温湿度和酒精的显示。传感器是一种物理装置或生物器官，能够探测、感受外界的信号、物理条件（如光、热、湿度）或化学组成（如烟雾），并将探知的信息传递给其他装置或器官。 本设计通过单片机和传感器的应用实现了对环境温湿度，酒精浓度，烟雾浓度的实时数据进行采集和显示，存储并记录，键盘输入温湿度的上下限值和预置值，环境温湿度，酒精浓度，烟雾浓度超过上下限值蜂鸣器报警，指示灯提示，并且可以通过上位机远程设置上下限值，查询各时间段的温湿度，酒精浓度，烟雾浓度情况等功能。通过软件仿真可以实现对温度，湿度，酒精浓度的测量，显示环境的各个参数值，并在各个数值达到设计上线时发生报警它结构紧密、调试安装方便、可塑性强，经长期使用性能稳定可靠。 关键字：单片机 传感器 Multi-sensor instrument design Abstract The main use of the microcontroller and sensor design, and alcohol to achieve the temperature and humidity display.Sensor is a physical device or biological organ that can detect, feel the outside of the signal, the physical conditions (such as light, heat, humidity) or chemical composition (such as smoke), and the Discovery of the information to other devices or organs. This design microcontroller and sensor applications to achieve the environmental temperature and humidity, alcohol, smoke density, real-time data acquisition and display, store and record temperature and humidity up and down the keyboard input and preset limit value, temperature and humidity, alcohol concentration, the concentration of smoke over the upper and lower limit alarm buzzer, LED tips, and can be remotely set by the upper and lower limits of the host computer, check the time of the temperature and humidity, alcohol, smoke concentrations and other functions. Can be achieved through software emulation of temperature, humidity, measurement of alcohol concentration, showing various environmental parameters, and each value in the design of on-line to the alarm when it is compact, easy installation, commissioning, plasticity, the long-term stable and reliable performance . Keywords: microcontroller sensors parameter values 目录 第一章 引言 6 1.1 系统研究的背景及意义 6 1.2 国内外研究现状 6 1.2.1 国内研究现状 6 1.2.2 国外研究现状 7 第二章 系统总体方案设计 8 2.1 总体设计思路 8 2.2 STC89C52单片机概述 10 系统硬件介绍及设计原理 11 3.1单片机与温湿度传感器之间的通信 8 3.2 酒精浓度采