I. INTRODUCTION
Currently there has been a significant increase in the use of software systems in sensor networks [1], [2]. These systems are made to gather data from sensors in order to build the information that defines the real state of the monitoring structure in function of the time. The extraction of valuable information from monitored structures has become a very important and challenging task, mainly due to demand for several techniques to filtering and compress data as well as to diagnose the state of what is being monitored [3].