基于粉尘传感器的空调列车空气质量研究

Study on air quality of air-conditioned trains based on dust sensor

空调列车是目前人们最主要的出行工具之一,其车厢内空气质量直接影响着乘客的健康。当前列车空调系统以车厢内温度、湿度及二氧化碳浓度为主要控制对象,已经不能满足现在乘客对健康和舒适度的要求。在分析列车空调运行现状的基础上,提出以LPC2478为控制器,DSM501A为可吸入颗粒物浓度监测传感元件的设计方案,对车厢内空气质量进行有效的控制。实验表明:该空调系统具有良好的性能,控制精度高,环境改善效果显著,具有广泛的应用前景。

At present the air-conditioned train is one of the main tool for people to travel,and the air quality of trains directly affect the passengers＇ health.Currently the main control objects of the air-conditioning system are temperature,humidity and CO2 concentration,but it can not meet health and comfort level requirements for passengers.In order to control the air quality effectly,the air-conditioning system is composed of LPC2478 as controller and DSM501A as respirable particulate matter concentration monitoring sensor,on the basis of analysis on the train air-conditioning operation status.Experiments show that the air-conditioning system has good performance,high control precision,and it is significant on the improvement of environment,and has widespread application prospect.