Seminario di Informatica: Using Mobile Sensors for Estimating Citywide Pollution Levels

Mercoledì 20 Gennaio 2016, ore 10:30 - Aula 1BC50 - Carlos T. Calafate



Mercoledì 20 Gennaio 2016 alle ore 10:30 in Aula 1BC50, Carlos T. Calafate (Technical University of Valencia (UPV), Spain) terrà un seminario dal titolo "Using Mobile Sensors for Estimating Citywide Pollution Levels".

Mobile sensing is becoming the best option to monitor our environment due to its ease of use, high flexibility, and low price. In this talk we show the evolution of a project starting from an initial validation procedure using an analytical/simulation-based approach, and then moving towards a real mobile sensing architecture (EcoSensor) able to monitor different air pollutants using low-end sensors. Our architecture is composed of three different modules: a mobile sensor for monitoring environment pollutants, an Android-based device for transferring the gathered data to a central server, and a central processing server for analyzing the collected data through spatial interpolation techniques and generate pollution distribution maps. Besides presenting the architecture itself, we analyze different issues related to the monitoring process: (i) Filtering captured data to reduce the variability of consecutive measurements; (ii) Converting the sensor output to actual pollution levels; (iii) Reducing the temporal variations produced by mobile sensing process; and (iv) Applying interpolation techniques for creating detailed pollution maps. In addition, we study the best strategy to use mobile sensors by first determining the influence of sensor orientation on the captured values, and then analyzing the influence of time and space sampling in the interpolation process.
Finally, we detail how the project is evolving towards UAV-based solutions for automated monitoring in rural & adverse ground mobility environments.

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