Collecting data from distributed sensors raises several issues,
which has been widely discussed in the literature. The solution
depends on the environment in which the sensors are implemented.
In this paper we present several targeted scenarios, based on
Near Field Communication technology and Android OS based
smartphones. We analyse the task of collecting sensor
information for these scenarios using distributed harvesters
(mobile data collectors). Then we propose a network coding based
solution that solves the inherent reliability and scalability
issues. We also present a prototype of the proposed solution.