汽车室内空气综合检测系统【参考】.doc

汽车室内空气综合检测系统 摘要 近年来，随着人类活动的加剧，环境问题已经越来越受到人们的关注，对空气质量监测已经成为天气预报必备的条件之一。特别是随着雾霾天气的增加，全国各地各种各样的空气质量监测设备如雨后春笋般出现，这些设备加载了当今先进的科技技术，对于空气污染起到了很好的监测报警作用。 当代社会人们的出行离不开乘坐汽车，但汽车内的空气质量还是令人担忧的。本文研究一种基于 STM32 的汽车室内空气污染物监测系统，通过 32位嵌入式微处理器处理气体传感器采集的数据，利用报警系统及时反映车内的空气质量指数，从而使汽车驾驶人员应时采取一些手段，改善汽车室内空气质量。 本课题从以下三个方面来完成汽车室内空气污染物监测：（1）监测系统硬件部分设计：采用意法半导体公司 STM32 系列中的 STM32F107 为处理核心，包含了传感器选型、数据采集电路、数模转换电路、供电电源电路、BMS(电源管理系统)、系统通讯电路、数据显示、报警电路等。（2）监测系统软件部分设计：包括系统开机自检、数据采集、数据传输、BMS(电源管理系统)、数据存储等程序设计。(3)系统关键技术分析及改善:包括传感器采集浓度准确度分析、报警装置稳定性分析、显示设备实时性分析、电池管理系统可靠性分析、系统不足之处改进等。 关键词 意法半导体 STM32；空气监测；电池管理系统 Abstract In recent years, with the intensification of human activities, environmental problems have attracted more and more attention, the air quality monitoring has become one of the necessary conditions of weather forecast. Especially with the increase in haze weather, air quality monitoring equipment across a wide range of loading such as bamboo shoots after a spring rain like appearance, these devices in todays advanced science and technology, the air pollution has played a good role in monitoring alarm. The car as one of the modern life can not lack of transportation, the indoor air quality problem also attracts peoples attention. This paper presents a STM32 car indoor air pollutant monitoring system based on embedded microprocessor through the 32 bit data acquisition and processing of gas sensor, the alarm system to alert the driver to take measures to improve the indoor air quality of automobile. This topic from the following three aspects to complete the car indoor air pollution monitoring: (1) monitoring system hardware design: semiconductor STM32 series of STM32F107 as the processing core by STMicroelectronics, including sensor selection, data acquisition circuit, analog-to-digital conversion circuit, power supply circuit, BMS (power management system), system communication circuit, data display and alarm circuit etc.. (2) monitoring system software design: including system