low power wire less sensor network--ppt
TRANSCRIPT
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“Low Power Wireless Sensor Network ”MIT ,MORADABAD 09/10/2009
LOW POWER WIRELESS SENSOR NETWORK
Seminar Guide Presented By
Mr.Saurabh Verma Vivek Kr.Gangwar
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CONTENTS Introduction Sensor node Power operation in network
Power awareness from Radio Communication Hardware Microcontroller Energy-efficient networks
Advantages Disadvantages Application Conclusion
“Low Power Wireless Sensor Network ”MIT ,MORADABAD 09/10/2009
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INTRODUCTION A wireless sensor network is a collection of
wireless sensors covering a small area. Every sensor performs independent sensing
processing and transmission of data over wireless link with minimum power consumption.
These include low-energy signaling and networking
“Low Power Wireless Sensor Network ”MIT ,MORADABAD 09/10/2009
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SENSOR NETWORK
“Low Power Wireless Sensor Network ”MIT ,MORADABAD 09/10/2009
Gateway sensor node
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SENSOR NODE
A sensor node, also known as a ‘mote‘ It is a node in a wireless sensor network that is
capable of performing some processing, gathering sensory information and communication with gateway sensor node
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SENSOR NODE ARCHITECTURE
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POWER OPERATION IN NETWORK
Power awareness from Radio Communication Hardware Microcontroller Energy-efficient networks
Signal Processing in the NetworkSystem PartitioningRead, Write and Erase Energy Usage
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POWER AWARENESS FROM RADIO HARDWARE
The functionality of both transmitter and receiver are combined into a single device know as transceiver are used in sensor nodes.
The operational states are transmit ,receive , idle and sleep
Low Voltage Operation 1.8V minimum supply
“Low Power Wireless Sensor Network ”MIT ,MORADABAD 09/10/2009
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MICROCONTROLLER :-
Here we use ultra low power microcontroller Texas MSP430 1.8V power supply Active power 6mW Sleep power 3µw Zero-power Brown Out Reset (BOR) <6 μs clock startup time <50 nA pin leakage current
“Low Power Wireless Sensor Network ”MIT ,MORADABAD 09/10/2009
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SIGNAL PROCESSING IN NETWORK
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SYSTEM PARTITIONING
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ADVANTAGES
Low cost Low power Small size Fast operation Reduce of man power
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DISADVANTAGES
Short communication distance It’s damn easy for hackers to hack Comparatively low speed of communication
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APPLICATIONS
Environmental sensing Home automation Security & military surveillance Industrial control & monitoring Health care Agriculture field
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CONCLUSION
In human life a sensor network may be the powerful tool, because they can be deployed at the places where a man can not reach
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