摘要
化工园区的气体排放具有不定时、不定量的特点,为了满足实时监测空气中污染物的需求,设计了一种基于窄带物联网(NB-IoT)通信技术的气体污染物实时监测系统。使用该系统检测了化学实验室中的二氧化硫、硫化氢、氨气等气体污染物的体积分数,实验中云端服务器接收数据能实时反映气体体积分数的变化,云端接收数据的时间与传感节点发送数据时间间隔基本一致,系统的实时性良好。
Gas emissions in chemical industrial park usually are not exactly timed and quantificational.To meet the demand of monitoring air pollutants in real time, a system based on NB-IoT technology is proposed and designed.Several air pollutants such as SO,HS and NHare tested.The results show that the system is able to response to the change of pollutants’ concentration, and the time intervals of receiving sensor nodes’ local data are basically the same with the time intervals of receiving cloud data.This shows the good timeliness of the system.
作者
贾青青
贾纹纹
张秦
党磊
陈李
JIA Qingqing;JIA Wenwen;ZHANG Qin;DANG Lei;CHEN Li(Key Laboratory of Fundamental Science of Micro/Nano-Device and System Technology for National Defense,Chongqing University,Chongqing 400044,China;Aerospace Shenzhou Biotechnology Group Co Ltd,Beijing 100080,China;Beijing Space Bioengineering Technology Research Center,Beijing 100091,China)
出处
《传感器与微系统》
CSCD
北大核心
2022年第9期102-104,108,共4页
Transducer and Microsystem Technologies
基金
国家重点研发计划资助项目(2018YFB2002302)
国家自然科学基金资助项目(61971074)
预研基金项目(31513070102-1)
中国航天科技集团有限公司自主研发项目(201905)。
关键词
无线传感器网络
气体污染物监测
实时性
窄带物联网
wireless sensor networks(WSNs)
toxic gas monitoring
real-time
narrow band Internet of Things(NB-IoT)
