Design Of Air Quality Monitoring System Based On GPRS

The air is the gas which is surrounded in around the earth, it maintains thehuman and biological survival.Clean air is one of the necessary conditions forhuman survival.depending on the self-puriifcation capacity of the atmosphere，the air can maintains clean. However, with the development of industry andtransportation industry, a large number of harmful substances are emitted intothe air.It is changing the normal composition of air and the air quality isbecoming bad.When we are living in the polluted air, our health will beaffected.Now the air environmental monitoring instruments in China generallyhave high failure rate, short service life, so the monitoring frequency is low，sampling is error，so it cannot relfect the sewage situation.】t not only affectsthe seriousness of environmental management and scientific decision-making,but also aggressive the positively to protect the environment.In Chinaenvironmental monitoring instruments is bound to the current manual samplingand lab analysis monitoring direction to automation, intelligent and networkeddevelopment, from labor-intensive to technology-intensive direction.In view of this，this paper designed the air real-time remote monitoringsystem, which mainly terminal equipment by the ARM9structure of theS3C2440as the processor core, embedded Linux as the software platform andSHT75sensors as the real-time monitoring environment. And use internet tosend the real-time data to the Supervisory control system, so weatherman canuse monitoring analysis of the data collection and grasp the area pollutionsource monitoring points and the indication information within doors，for thisreason the environmental protection agency management to realize theinformationization in the mechanism. It overcomes the past monitoring ofvarious environmental indicators depends mainly on the environmentalprotection personnel to the scene manual sampling to information change, backto laboratory analysis and then make the conclusion.It not only overcome thecycle is long, the efficiency is low, but also can improve the monitoringfrequency to the environment, so it has good prospects for development?...