Fixed Sensors Integration for Future Cities Using M2M
Master's Degree Dissertation


This dissertation work main contributions are the sense units and cloud UrbanSense applications, as well as the ability to understand the overall system performance through metadata statical analysis. Now, sense units can be installed in places where there are not Internet hotspots around and 3G coverage, and be able to reliably send sensors’ data to the cloud UrbanSense server. Hence, sense units still need a vehicular network around. Even in places with 3G or Internet hotspots coverage, sending sensors’ data in an opportunistic way may have some advantageous. For instance, using opportunistic communications instead of 3G, takes to the reduction of 3G service costs. Turning to the system performance, its analysis can be useful for adapting sensors’ data acquisition in accordance with moments of the day there are more vehicular network bandwidth available and understand if developed application are working properly.

Although the applications and metadata validation test was not conducted in an urban-scale environment, the test metadata analysis permits to conclude that the developed applications accomplish their goal of reliably send sensors’ data to the cloud UrbanSense server in an opportunistic way. Furthermore, the test conducted and its metadata analysis, permitted to have an idea of the kind of analysis can be performed at an urban-scale. For each sense unit, metadata permits to know sense units bundles delay, percentage of sensors’ data retransmissions, amount of sensors’ data transferred in period of time and how size of sensors’ data in bundles varies.