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DEPARTMENT OFELECTRONICS AND COMMUNICATION ENGINEERING

TECHNICAL SEMINAR

ON

UBIQUITOUS COMPUTING

PRESENTED BYG.LOKESH

08MQ1A0434

ECE

SRI VASAVI INSTITUTE OF ENGINEERING AND TECHNOLOGY,NANDAMURU, PEDANA MANDAL,

ANDHRA PRADESH.KRISHNA DST.

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Is also known as pervasive computing.

Refers to use of computers in everyday life.

New Type of relationship between peoplesand computer

Includes PDAs, smart phones and otherdevices.

Will become a larger part of our social lives.

UBIQUITOUS COMPUTINGUbiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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DEFINITIONS:

The method of enhancing computinguse by making many devices (services)available throughout the physical

environment, but making themeffectively invisible to the user.

many embedded, wearable, handheld

devices communicate transparently toprovide different services to the users

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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Major focus on Users & there tasks.

Lack of applications in existing systems.

Architecture needs to :

be simple

integrate support for mobilecomputations and persistent

storage.

be easy to encapsulate.

SYSTEM ARCHITECTURE FOR UBIQUITOUSCOMPUTING

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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FOUR BASIC MEANS FOR OBTAINING

HIGH DEPENDABILITY

fault prevention:

preventing the occurrence of faults.

fault tolerance :delivery of service in presence of faults.

fault removal:

verification & validation.

fault forecasting:

system evaluation.

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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USERS INTERFACE

The multitude of different Ubicompdevices with their different sizes ofdisplays and interaction capabilitiesrepresents another challenge

PEN GUESTURERECOGNISATI

ON

MOUSEKEYBOARD

USER

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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UBI-BAT

This location tracking system has three parts:

Bats: - small ultrasonic transmitters worn by users.Receivers:-ultrasonic signal detectors embedded

in ceiling.CentralController:- coordinates the bats and

receiver chains.

The figure of a Bat.

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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UBI-FINGER

By pointing a light andmaking a gesture likepush a switch

The light will turn on!

Ubi-Finger consists of three sensors to detectgestures of fingers,:

Infrared transmitterMicro computer

Receiver

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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(1) a bending degree of the index finger,(2) tilt angles of the wrist,(3) operations of touch sensors by a thumb.

(1) and (2) for recognition of gestures, and use(3) for the trigger mechanism to start and stopgesture recognition.

UBI-FINGER

Ubi-finger

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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MOUSE FIELD

Placing" (detecting an

object) "Moving" (detectingits movement)Fig: Basic concept of mouse field

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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Front view backview

Implementation of a Mouse Field Device

IMPLEMENTATION OF A

MOUSE FIELD DEVICE

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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A Music Player withMouse Field.

Controlling the MusicPlayer

IMPLEMENTATION OF A

MOUSE FIELD DEVICE

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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Conclusion

To make ubiquitous computing a reality willrequire the collaboration of researchers in a

broadband of disciplines, within computerscience and beyond.

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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REFERENCES

Pervasive ComputingIEEE Pervasive Computing Magazine

Intelligent Environmenthttp://www.media.mit.edu/

http://cooltown.hp.com/http://portolano.cs.washington.eduhttp://www.firstmonday.dk/issues/issue4_9/odlyzko/

Wearable Computershttp://www.redwoodhouse.com/wearable/http://iswc.gatech.edu/archives.htm

Wireless communicationshttp://www.wirelessdevnet.com/

Ubiquitous

computing

Definition

Architecture

4 basic points

Interference

Ubi-bat

Ubi-finger

Mouse field

Conclusion

Reference

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