DESIGN OF ENERGY AWARE AIR POLLUTION MONITORING SYSTEM USING WSN

The paper presents Wireless sensor network system used to monitor and control the air quality in Nagpur city, India. Environmental air pollution monitoring system that measures, RSPM (Respirable Suspended Particulate Matter), NO x, and SO 2 are proposed. The traditional air quality monitoring system, controlled by the Pollution Control Department, is extremely expensive. Analytical measuring equipment is costly, time and power consuming, and can seldom be used for air quality reporting in real time. Wireless Sensor Networks are a new and very challenging research field for embedded system design automation, as their design must enforce stringent constraints in terms of power and cost. Wireless Sensor Network is a fast evolving technology having a number of potential applications in various domains of daily-life, such as structural and environmental monitoring, medicine, military surveillance, condition based maintenance etc. A WSN is composed of a large number of sensor nodes that are usually deployed either inside a region of interest or very close to it. WSN nodes are low-power embedded devices consisting of processing and storage components (a processor connected to a RAM and/or flash memory) combined with wireless RF transceiver and some sensors/actuators. The proposed system makes use of an Air Quality Index (AQI) which is presently in use. Several sensor nodes, which measures pollutants information, were uniformly deployed in the networks to create sensing phenomena. The simulation results consist of the scenario generated and x and y co-ordinates of the nodes from the gateway by using Network Simulator (NS-2.33). For better power management we used low power strategies and hierarchical routing protocol in wireless air pollution system and caused the motes to sleep during idle time.