| With the development of society and improvements of people’s living standard,more and more residues from the process of daily electricity generation,industrial production,and traffic emission are discharged after combustion.Most of residues contain toxic substances like heavy metals,and they are the primary source of PM2.5.Meanwhile,a mass of adhesives are used in various chipboards,fibreboard and plywood,production of new furniture,decorations and paving of wall space and ground.Wherever massive adhesives are used,large amounts of formaldehydes will be generated.PM2.5 and formaldehyde are the two major pollution sources in today’s daily life.But using existing associated environmental monitoring equipments and devices,only concentration of formaldehyde or PM2.5 can be detected separately.It’s impossible to do comprehensive analysis to surroundings scientifically and reasonably.Hence,a single unit cannot provide comprehensive detections and protection guidelines to safety and health conditions of surroundings.In addition,existing detection equipments are too large,mainly because they need both buttons to set parameters,and large LCD display for data presentation.In this case,it’s not convenient to carry these equipments for comprehensive detections and protection guidelines,which makes it difficult to monitor surroundings in real time and send out automatic alarm signals reminding users to leave timely.Focusing on problems above,this paper proposed to design and realize perception system of environmental pollutants on basis of Android and UCOS-Ⅱ.This system includes perception device of environmental pollutants based on UCOS-Ⅱ and APP software of environment perception based on UCOS-II.They two realize real-time wireless communication with each other by bluetooth communication channels.Based on UCOS-Ⅱ,perception device of environmental pollutants is used to synthetically collect parameter value of formaldehyde pollutants in environment.And then intelligently analyze and process the data synthetically,if it is greater than safe value,the system will send alarm information of formaldehyde pollutants to mobile terminals.Based on Android,APP software of environment perception is applied to actively query and passively accept process information sent by perception device.At the same time,it also can obtain local PM2.5 value by accessing server remotely,and give out intelligent alarms for formaldehyde and PM2.5,which could help avoid users’ bodies from being exposed to polluted environments.Through this paper proposed to design and realize perception system of environmental pollutants on basis of Android and UCOS-Ⅱ.Technical proposal of this system could prevent human bodies from environmental pollutants that may do harm to human health,so that users can leave polluted area quickly and keep themselves healthy.This system is miniature and portable,so that users can get it along with themselves to detect surroundings environment in real time.Besides,The perception device of environmental pollutants based on UCOS-Ⅱ and APP software of environmental perception based on Android are connected wirelessly,which enhances the intelligence of this system. |
