Design And Implement Of The Internet Of Things For Environmental Protection On-line Pollutant Source Monitoring And Controlling System Based On Cloud Computing

With the acceleration of economic development in our country, environmentalproblems have become increasingly acute. The Internet of Things for environmentalprotection on-line pollutant source monitoring and controlling system is an importantmeans to convert later supervision to early prevention, and an important part of threeconserving energy and reducing emission systems constructed by the Ministry ofEnvironmental Protection. Recently, on-line pollutant source monitoring andcontrolling system were confronted with following problems. The information amongdifferent departments were hard to share and integrate which resulted to thephenomenon of redundant construction and information island. Expensive serversshould be bought for newly increased monitoring station, and their utilization ratewere very low. As the number of monitoring station increasing, the system could notexpand automatically. The cloud computing technologies which were integrated intoThe Internet of Things for Environmental Protection can help solving these problemsbecause of its advantages in low-cost, configuration, significant storage andcomputing abilities.In this paper, the design of on-line pollutant source monitoring and controllingsystem was proposed and the key technologies for this system had been researchedand put into practical application, main work focused on three aspects as follows.Firstly, the mobile terminal-data acquisition and transmission device wasdesigned and the engineering prototype of this device was built. The data acquisitionand transmission device realized the functions of data collection from front-end sensormonitoring device and standardization of communication with environmentalmonitoring platform. The engineering prototype had passed electromagneticcompatibility test hold by National Metrology department in November2011, and gotthe environmental protection product certification from National EnvironmentalMonitoring Station after sixty consecutive day reliability test in April2012, and thenentered the environmental protection market officially. More than eightyenvironmental monitoring stations had installed the devices（until October2012）whose stable and reliable performance gained high recognition from Tianjin environmental monitoring center and environmental protection agency in somedistricts and counties of Tianjin.Secondly, in this paper, exploratory research on cloud computing technologiesunder laboratory environment were conducted, and cloud computing cluster based onHadoop which achieved automatic configuration of system resources was built. Theinterface and performance of MapReduce algorithm which was targeted at parallelprocessing massive data had also been researched. All these work laid the foundationsfor massive data storage and processing in The Internet of Things for environmentalprotection.Thirdly, on-line pollutant source monitoring and controlling data managementsystem was designed and developed in this paper. Based on Web B/S structure, thissystem achieved the data synchronization with state’s on-line pollutant sourcemonitoring and controlling system and was designed according to the requirement ofenvironmental protection monitoring and managing work in Tianjin environmentalmonitoring center, and increased working efficiency of environmental protectionmonitoring personnel significantly. This system had been deployed for a half year andrun in a good condition.In conclusion, combination with cloud computing is the development direction ofThe Internet of Things for environment protection, and the overall construction of TheInternet of Things for environment protection is a long process. The theory andtechnologies presented in this paper will serve The Internet of Things for environmentprotection of our state directly, and have wide application prospect and tremendouscommercial value.