轨道交通站台环境监测系统设计

Design of Environment Monitoring System for Rail Transit Station

随着我国各类交通行业的快速发展,地铁正日益成为城市交通的主要工具之一.但地铁站台内的空气质量、温度、湿度等综合环境指标往往易被人们忽视.尤其大部分地下二层至三层站台,不利于室内外空气交换,由此会引起空气污染等问题.针对上海地铁地下站台,设计了轨道交通站台环境监测系统.采用无线多节点采集环境信息,节点采用STM32单片机控制,节点之间采用Zig Bee组网连接,可以自由安装.每个节点带有PM2.5传感器、温湿度传感器、CO传感器、烟雾传感器等.每个站台布置一台数据处理中心,收集所有节点数据并且处理显示.数据处理中心由单片机STM32控制,通过ENC28J60与网线连接实现嵌入式Web访问服务.

With the rapid development of all kinds of transportation industry in our country,the underground railroad is becoming one of the main tools of urban traffic. However,the subway station of comprehensive environmental indexes,such as air quality,temperature,humidity and so on,tend to be overlooked. Especially in most of the underground platform on the second and the third layers,it is not conducive to indoor and outdoor air exchange,which can lead to problems like air pollution. For the underground stations in Shanghai,the environment monitoring system of railway transportation platform was designed. The wireless nodes were adopted to collect environmental information. The node was controlled by STM32 MCU,the ZigBee network was used to connect and free to install. Each node contains PM2. 5sensor,temperature humidity sensor,CO sensor,smoke sensor,etc. Each platform installed a data processing center to collect all node data for display and processing.Data processing center was controlled by STM32 MCU and implemented the embedded Web access service through ENC28J60 and wiring.