Study and Evaluation of Wireless Sensor Networks Performance

Abstract

This project analyses vehicle behavior from measurements of air pollutants (CO2) sound pollution levels, measured in ppm and decibels respectively. Such measurements are taken by a wireless sensor network mounted in the Baghdad Dora Express way, Iraq. Four sensor nodes and a coordinator form the wireless network based on the Zig bee norm. The sensor nodes wirelessly send the data to the coordinator, who displays the actions defined by the measurement curves through a graphic interface built in JAVA and store the data on a MySQL web server. The analysis of vehicle behavior considers noise levels and carbon dioxide concentration higher than their base reference value, measured in a certain period of time. Comparative and individual graphs of noise and carbon dioxide concentration taken in two days of measurement, belonging to the nodes, show greater vehicular activity in peak hours that are reduced at the end of the day and at midnight, in addition to the individual performance of the nodes within the network, which depends on the infrastructure of the Integrated Security System ECU911.