Dynamic power profile estimation of interconnected smart objects

Networked embedded objects augmented with smart applications have already started encompassing many aspects of human life. More often these objects are driven by limited power sources and hence estimation of remaining energy in these objects at run time becomes important. Also power profiling provides a rough idea on how long the intended applications will run on the network given the battery-life specification. The proposed component based architecture use a power estimation module for dynamic power profiling. The code for power estimation could be disseminated either through direct burning or over-the-air programming in each objects of the network. The scheme has been implemented and tested on a wireless sensor network set-up where smart objects considered are TelosB nodes running on Contiki operating system. The experiment conducted, the results and observations are presented.