|
The major problems in
designing sensor networks are the high reliability required to the whole
system, to be contrasted with the potential unreliability of the single
sensor, and the possibility of congestions around the sink nodes that could
prevent critical information to reach the control centres at the right time.
The key idea of WINSOC is the development of a totally innovative design
methodology, where the high accuracy and reliability of the whole network is
achieved by introducing a suitable coupling among adjacent, low cost,
sensors, that gives rise to distributed decisions, much more accurate than
that of each single sensor, without the need for sending all data to a
fusion centre. The whole network is hierarchical and composed of two layers:
a lower layer, composed of low cost sensors, responsible for gathering
information from the environment and producing locally reliable decisions
thanks to proper interaction among the nodes, and an upper layer, composed
of more sophisticated nodes, whose goal is to convey the information to the
control centres. Continued below .......
The local interaction among the low cost sensors is the key point that
increases the overall reliability and provides scalability and fault
tolerance. Thanks to its distributed processing capabilities, the risk of
having a congestion around the control nodes is strongly reduced. Building
on this idea, the consortium has put together expertise from big companies,
academies, research centres, end-users and SME's, to create a strong
synergism between academic world, industries and end-users. The primary
goals of WINSOC are to develop an innovative general purpose sensor network
architecture having the distributed processing capabilities described above
and to test applications on environmental risk management, with focus on
landslides detection, gas leakage detection and large scale temperature
field monitoring.
|