毕业设计论文：基于单片机的便携式环境监测仪设计.doc

基于单片机的便携式环境监测仪设计 专业班级： 学生姓名： 指导老师： 职 称： 摘要人类的生存和社会活动与温湿度密切相关。在某些行业中对温湿度的要求高温湿度检测在很多现代科技领域中成为一项重要技术并且随着人们生活水平的提高，人们对自己的生存环境越来越关注，而温湿度的变化与人体的舒适度和情绪有直接的影响，所以对温度、湿度的检测就非常有必要了。MPX4105实现气压的检测，采用点阵字符型 LCD显示温湿度字母、数字。 该环境监测仪结构简单，并能很好的满足许多环境中对温湿度及气压检测范围和精度的要求。 关键词：MSP430单片机 传感器 温湿度 气压 Portable Environmental Monitor based on Single-Chip Microcomputer Abstract The humiture and atmospheric pressure are important physics parameters of environment, human beings survival and public activities go hand in hand with the parameters. many situations that are in the production and the life, not only warehouse management, preservation of books, but also industrial production, residents life, all have certain request to the humiture and the atmospheric pressure of the environment, some professions have higher requirements. Therefore，it appears very important to examination and control the humitureatmospheric pressure of the environment, and humiture-atmospheric pressure detecting becomes an important technology in many modern science and technology fields. The humiture and atmospheric pressure double parameters of the intelligent design test method for measuring temperature, humidity detection. This system to MSP430 single-chip microcomputer as the main control chip, have used the high precision, low cost, small volume, simple interface of the advantages of SHT11 temperature ,humidity sensor and MPX4105 realize temperature and humidity test, The dot matrix characters type LED display temperature and humidity letters, Numbers. That instrument structure is simple, and can satisfy the request of range and accuracy of the humiture and atmospheric pressure checks in various environments. Keywords：MSP430 microcontroller Sensor Humiture atmospheric pressure 目 录1 绪论 1 1.1 选题背景 1 1.2 环境监测仪发展过程 2 1.3 环境监测仪发展前景 3 2 环境监测仪的工作原理及主要器件介绍 4 2.1整体设计思路 4 2.2 单片机MSP430 5 2.2.1 单片机MSP430简介 5 2.2.2 单片机MSP430主要特点 5 2.2.3 单片机MSP430工作模式 7 2.2