摘要21 世纪以来，随着计算机的普遍应用，人类社会不断的进步发展，人们的 生活往智能化和自动化的方向发展。可是科学技术的迅速发展带来了环境问题， 特别是近几年日趋严重的雾霾问题受到了人们的广泛关注。温度和湿度是环境的 两个最基本最重要的因素。因而，对环境的温湿度的实时检测报警，可以改善人 们的生活环境。

温湿度控制普遍应用于工农业生产和人们的生活中,人们的方法是先采用温 度计、湿度计来采集温度和湿度的数值,然后实时的记录，最后通过加热、加湿、 除湿和降温等设备来控制温湿度, 这种方法不仅控制精度低、实时性差,而且操 作人员的劳动强度大，而且温度过高或者湿度过高容易引发安全事故。针对传统 的温湿度系统存在的诸多问题，采用单片机控制来解决，其优点是体积小，控温、 控温性能好，控制精度高，实时性好。72281

本论文采用了单片机技术和传感器技术设计了一款稳定性好，实时检测性能 好的温湿度控制系统，ATC89C51 单片机是该系统的核心，配以 1602 液晶显示 器、蜂鸣器、传感器等器件。单片机接收从温湿度传感器上发出的数据，然后进 行分析，如果超过了界限值，实现报警功能。

该论文有图 12 幅，表 4 个，参考文献 25 个。

毕业论文关键字：单片机 传感器 1602 液晶显示屏 ATC89C51 报警

Design of temperature and humidity detection alarm System Based on Single Chip

Abstract Since the 21st century, with the widespread use of computer, constant progress and development of human society, people's lives to the intelligence and automation direction。 But the rapid growth of science and technology has brought environmental problems, especially in recent years, the increasingly serious problem of  haze has been widespread concern。 Temperature and humidity are two basic environment the most important factor。 Thus, real-time monitoring of temperature and humidity alarm, can improve people's living environment。

Temperature and humidity control widely used in industrial and agricultural production and people's lives, people's method is to use a thermometer, hygrometer to collect temperature and humidity values, and real-time recording, and finally by heating, humidification, dehumidification and cooling and other equipment temperature and humidity control, this method is not only low control accuracy, timeliness is poor, and large labor intensity, and high temperature or high humidity can easily lead to accidents。 For many problems of traditional temperature and humidity systems exist, using SCM control to solve, the advantage of small size, good temperature control, temperature performance, high control precision, real good。

This paper uses a single chip and sensor technology, designed a good stability, good performance of real-time monitoring of temperature and humidity control system, ATC89C51 SCM is the core of the system, together with the 1602LCD, sensors and other devices。 SCM received the data sent from the temperature and humidity sensors, and then analyzed, if it exceeds the threshold, an alarm function。

This paper has 12 figures, 4 tables, 25 reference。

Key Words:SCM Sensor 1602 LCD ATC89C51 Alarm

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摘 要 I

Abstract II

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