摘 要跟随着生活节奏加快与生产方式的进一步提升，人们在室内活动时间高达93%以上。虽然，室内空气污染浓度并非那么严重但长期接触，故其累积接触量增高。例：具有挥发性的容易导致癌症的物质；以及在人们日常生活中经常见到的比较容易发生的天然气和煤气等的泄露，这些都不利于人们的健康。室内空气质量对人体健康就显得更加重要。本课题设计是通过 STC89C51 单片机为主控制器，控制 MQ-2 烟雾传感器、甲醛模组 ZE08-CH2O、DHT11 温湿度检测模块与 ADC0832 模数转换器来实现对进行空气中的有害气体含量进行采集、分析。此设计可达到功耗低、可靠性高、及时、准确检测一定空间内空气中存在的有害气体，最重要的是能够第一时间进行报警提醒人们，有利于人们及时采取措施，避免造成不必要的损害。可使得更多的家庭灾难得以避免。关键词：STC89C51 单片机；MQ-2 传感器；温湿度检测；甲醛模组 ZE08-CH2OAbstractWith the further modernization of production and lifestyle, people spend more than 93% of their time in indoor activities. Although the concentration of indoor air pollution is often low, the accumulated exposure increases over a long period of time. The leakage of gas, natural gas, liquefied petroleum gas and other harmful gases caused by misoperation or equipment fault in People's Daily life brings fatal harm to people. Therefore, indoor air quality is more important to human health.This topic is through the STC89C51 microcontroller as the main controller is designed, the control of MQ - 2 smoke sensor module ZE08 formaldehyde - CH2O DHT11 temperature and humidity detection module and ADC0832 AD converter to realize to the concentration of harmful gas in the air for collection and analysis of this design can achieve low power consumption high reliability accurately and effectively for detecting harmful gas concentration in indoor environment and even the characteristics of the alarm to remind people to make effective measures when the chroma of harmf...
