Information Technology Reference
In-Depth Information
Fig. 11.12
GUI display of SPOT's parameters in Early Fire Detection
The main hardware difficulties are listed in Table
11.1
. For example, the Sun
SPOTs are suitable for software development and learning purposes, but inappro-
priate for development of real applications. The SPOTs have problems with
frequent restarting and are interference sensitive, which makes them unsuitable for
deployment in facilities with many devices operating on 2.4 GHz frequency band.
Also, the output voltage they provide on their input/output pins is very unstable if
the motes operate on battery. Therefore, the extra sensors that need to be attached
on the Sun SPOTs should use a separate power supply (appropriate battery, for
example) or the Sun SPOTs must be always connected to a power supply instead of
operating on a battery. The rest of the equipment requires different and specific
hardware connections, filters, wirings, or connectors. The comments for the
different sensors and the equipment used in the mentioned scenarios are given in
Table
11.1
.
11.5
Conclusion
The presented testbed with the developed usage scenarios and demo applications
comprises several aspects regarding the usage of WSN and RFID in emergency sce-
narios, surveillance systems, vehicular and smart home environments. The selected
scenarios are implemented in a testbed environment with the purpose to show the
possibilities of the technologies and to establish a basis for further research.
Even though the basic idea of the testbed is to demonstrate proof-of-concept of
selected usage scenarios, it will serve as a laboratory where future research on various
sensor networking aspects can be tested in a practical setup. They range from
energy-efficient layer and protocol design, energy scavenging, energy harvesting to
aspects of cooperative communications. Further on, novel and productive results
can be also addressed in the fields of routing, attribute addressing, security, time
synchronization, localization as well as efficient data gathering.
Search WWH ::
Custom Search