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WIRELESS
SENSOR
NERWORK
Submitted by
K.Sowmiya ECE
(2 nd Year)
INDRODUCTION
*A wireless sensor network is a wireless sensor
network consisting of spatially distributed
autonomous device using sensors to
cooperatively monitor physicalir environmental
conditions, such as temperature, sound,
vibration,pressure,motion or pollutants,at
different locations.
*A collection of sensing devices that that can
be communicate wirelessly.
CONTENTS
*Introduction
*Characteristics
*Applications
*Architecture for
WSN
*WSN Node
*Factors of WSN design
*Futures of WSN
*Advantages
*Disadvantages
*Operational challenge of
WSN
*Conclusion
CHARACTERISTICS
*Cross layer design.
*Heterogeneity of nodes.
*Easy to use.
*Cross layer design.
*Heterogeneity of
nodes.
*Mobility of nodes.
APPLICATIONS
*Military
*Environmental
*Health
*Home and office
*Automotive
ARCHITECTURE FOR A WSN
SPECIAL ADDRESSING
REQUIREMENT:
* Data centric
* Local unique
addresses. Eg:Each
node has unique
number.
WSN NODE
SENSOR:
*A transducer
*Converts physical
phenomenon. Eg:
heat,light, motion,
vibration.
SENSOR NODE:
* Basic unit
sensir network.
* Nodes deployes
either inside or
very close to the
sensed
phenomenon.
FACTORS INFLUENCING WEB DESIGN
1 Fault tolerance
2 Scalability
3 Production costs
4
Hardware constaints
5Sensor network
Topology
6Environment
7Transmission
Media
8
Power consumption
Factors
FUTURE OF WSN
*Sensors controlling
appliances and electrical
in the house.
*Better lightning and
heating in office
building.
* The pentagon building
has used sensor
extensive.
ADVANTAGES
1 IIt avoid a lot of wiring
2
It can accommodate new
device at any time
3
It is flexible to go through
physical partitions
4
It can be accessed through
centralized monitor
DISADVANTA
GE*Lower speed
compared to
wired network.
*Still costly at
large.
*More complex to
configure than
wired network.
*It does not
reduce costs for
installation of
sensors.
Heterig
eneity
Utilizat
ion of
sensor
Distribu
ted
processi
ng
*Low
bandwidt
h
communic
ation
DESIGN CHALLENGES
*Large scale
Coordinates
OPERATIONAL CHALLANGES OF
WSN
*Energy
Efficiency
* Low
Bandwidth
* Limited
storage
*High
Error
Rates
CONCLUSION
*WSN possible today due
to technological
advancement in various
domains.*Envisioned to
become an part
of our lives.
THANK
YOU

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