基于STM32的室内空气质量监测器的设计与研究

发布时间：2018-12-05 15:57

【摘要】：我国是正处于高速发展中的大国,在工业化规模不断扩大的同时,环境污染问题也日益严重。近几年来,随着人们环保意识的提高,人们越来越关注室内空气污染问题对人身体健康的影响。在我国,室内空气污染主要是由于建筑材料的低标准、空调的大量普及和可吸入性颗粒引起的,其中可吸入性颗粒主要指的是PM2.5,有研究表明,PM2.5所引起的雾霾天气对人体健康危害程度甚于沙尘暴。针对目前市场上的空气质量监测产品价格昂贵,体积大,便携性差,测定周期长,有时需要专业人员进行操作而无法普及的情况,本文设计了一款具有较高性价比的室内空气质量监测系统,目的是为了提高人们的生活质量,使人们能够实时掌握室内空气质量情况。本文开展并完成以下工作:1、首先,根据市场需求,提出空气质量监测系统的整体设计方案;2、其次,根据提出的整体设计方案,完成系统硬件的设计,例如分别进行了温湿度传感器的选型和传感器电路设计,CPU的选型、MP3电路设计以及其他外围电路设计等;3、再次,在硬件设计的基础上完成各模块的软件开发和实现,主要是利用嵌入式实时操作系统μC/OS-II以及嵌入式图形系统μC/GUI来实现系统各模块的驱动。4、最后,对系统进行整体调试,测试系统的正常性,根据采集得到的数据计算出各传感器的测量精度,再对数据进行基于BP神经网络算法和灰色关联度分析的两级数据融合,得出室内环境质量报告,总结所做工作,对系统的不足提出改进。
[Abstract]:China is a large country in rapid development. With the expansion of industrialization, environmental pollution is becoming more and more serious. In recent years, with the improvement of environmental awareness, people pay more and more attention to the impact of indoor air pollution on human health. In China, indoor air pollution is mainly caused by the low standard of building materials, the popularization of air conditioning and the inhalation of particles. The haze weather caused by PM2.5 is more harmful to human health than sandstorm. In view of the fact that the current air quality monitoring products on the market are expensive, large in size, low in portability, long in measuring cycles and sometimes requiring professional operations that cannot be popularized, An indoor air quality monitoring system with high performance-price ratio is designed in this paper. The purpose of this system is to improve people's quality of life and enable people to grasp the indoor air quality in real time. The following works are carried out and completed in this paper: 1. Firstly, according to the market demand, the whole design scheme of air quality monitoring system is put forward; Secondly, according to the overall design scheme, the hardware design of the system is completed, such as temperature and humidity sensor selection and sensor circuit design, CPU selection, MP3 circuit design and other peripheral circuit design. Third, on the basis of hardware design, the software development and implementation of each module is completed, mainly using embedded real-time operating system 渭 C/OS-II and embedded graphics system 渭 C/GUI to realize the driver of each module of the system. The system is debugged as a whole, the normality of the system is tested, the measurement accuracy of each sensor is calculated according to the collected data, and the data is fused by two levels based on BP neural network algorithm and grey correlation analysis. Get the indoor environmental quality report, summarize the work done, and improve the system.
【学位授予单位】：武汉轻工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X851

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