摘要
室内环境污染和人类身体健康息息相关,如何便捷、可靠地监测室内空气便成为了研究热点。实现了一种远程云端分布式的实时室内空气质量监测系统,为治理室内空气污染提供了新的途径。该系统采用STM32F407ZGT作为主控,构建了FreeRTOS操作系统和LwIP轻量级协议软件框架,实现了MQTT客户端的搭建、传感器数据的采集。基于物联网技术和OneNET云平台,搭建了室内空气质量监测云平台。该系统主要监测的污染源气体为TVOC、甲苯、甲醛。在单节点传输数据总流量不超过512 kB/s、上行publish报文不超过256 kB,且启用节点数每秒不超过10个的情况下,可正常显示数据。该系统对云基础设施建设有借鉴价值,并为室内空气质量监测提供了有效手段。
Indoor environmental pollution is closely related to human health.How to monitor indoor air conveniently and reliably has become a research hotspot.This paper realizes a remote cloud distributed real-time monitoring of indoor air quality system,which provides a new way to control indoor air pollution.This system uses STM32F407ZGT as the main control,constructs FreeRTOS operating system and LwIP lightweight protocol software architecture,and realizes the construction of MQTT client and the acquisition of sensor data.Based on the Internet of Things technology and OneNET cloud platform,the construction of indoor air quality detection cloud platform is realized.The main pollutants monitored by the system are TVOC,toluene and formaldehyde.When the total data flow of single node transmission is not more than 512 k B/s,the uplink publish message is not more than 256 kB,and the number of enabled nodes is not more than 10 per second,the data can be displayed normally.It can provide reference for cloud infrastructure construction and provide available means for indoor air quality monitoring.
出处
《工业控制计算机》
2022年第9期102-104,共3页
Industrial Control Computer
