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总字数：17700+
摘要
随着当前人们生活水平不断提高，人们的生活环境也越来越完善，但是在人们的生活之中，居住环境的成为人们生活的主要问题，对任何人来说，都需要建设较为完善的空气质量检测系统，使得人们在享受生活的同时，也使得家中的财产安全及其人身得到保障。本文研究与设计了一款基于单片机的空气质量检测系统设计，此次设计采用软件和硬件结合设计，通过采用STC89C52单片机作为主控芯片，通过烟雾传感器MQ-2检测环境中的烟雾浓度，通过光敏电阻检测当前环境中的光照强度，通过DHT11检测当前环境中的问谁丢，将检测的数据和用户设置的数据进行对比，并将检测的数据显示在显示屏上，当检测到温湿度不在设置的限值范围之内，或者烟雾大于设置的最大值进行声光报警提醒用户；此次设计可以检测环境中的烟雾、温湿度、光照强度的检测及其对住房火灾的预防及其处理具有一定的研究意义。
关键词：STC89C52单片机；智能防火；烟雾传感器；温湿度；光照强度
Abstract
As the people living standard unceasing enhancement, people’s living environment is becoming more and more perfect, but in people’s life, living environment become the main problem in people’s life, for anyone, all need to build more perfect air quality testing system, make people at the same time of enjoying life, also makes the property safety in the home and personal security. This paper studies and designs an air quality detection system design based on single chip microcomputer. This design combines software and hardware. By using STC89C52 single chip microcomputer as the main control chip, the smoke concentration in the environment is detected through the smoke sensor MQ-2, and the light intensity in the current environment is detected through the photoresistor. DHT11 is used to detect who is missing in the current environment. The detected data is compared with the data set by the user, and the detected data is displayed on the display screen. When the temperature and humidity are detected to be outside the set limit range, or the smoke is greater than the set maximum, an audible and visual alarm is given to the user. This design can detect the smoke in the environment, temperature and humidity, light intensity detection and the prevention and treatment of housing fire has certain research significance.
Key words:STC89C52 MCU; Intelligent fire prevention; Smoke sensor; Temperature and humidity; Light intensity
目 录
第一章 绪论
第二章 系统设计方案
第三章 硬件设计
第四章 软件设计
第五章 仿真测试
第六章 实物测试
第七章 结论
参考文献
致谢
附录