pervasive computing presentation.pptx

7/28/2019 pervasive computing presentation.pptx

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PERVASIVE COMPUTING

Group members

F.H.A. Shibly Ahamed MS13904760

A. Jaleel MS13904692

A.J.M. Hasmi MS13904524

(Internet Beyond the Desktop)


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Introduction

Vision & Motivation

Applications

Challenges in Pervasive Computing

Benefits

Pervasive Scenario

Future Aspects Conclusions

References

2

Contents


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Pervasive computing (also called ubiquitous computing) is the growingtrend towards embedding microprocessors.

The words pervasive and ubiquitous mean "existing everywhere".The aim of Pervasive Computing is for computing available wherever

it's needed. It spreads intelligence and connectivity to more or lesseverything.

Ships, Aircrafts, Cars, Bridges, Tunnels, Machines, Refrigerators, Door handles,Lighting fixtures, Shoes, Hats, Tools, Homes and even things like our coffeemugs and even the human body embedded with chips

Mobile Internet access, Third-generation wireless communication, Handhelddevices, and Bluetooth have made pervasive computing a reality.

Introduction


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Definition

An environment in which people interact withembedded (and mostly invisible) computers(processors) and in which networked devices are awareof their surroundings and peers and are able to provide

services or use services from peers effectively .

What is pervasive computing?


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Anytime/

AnywhereAny

DeviceAny

Network Any Data

Pervasive computing means.,

1. Anytime/anywhere: 7 days x 24 hours, global, ubiquitous access.

2. Any device: PC, Palm/PDA, cell phone, and so forth.

3. Any network:Access, Notification, Data Synchronization, Queued transactions,

Wireless optimization, Security, content adaptation/reformat, development tools,

device and user management.

4. Any data:E-mail, Personal Information Manager (PIM); Inter-Intranet; Public

Services.


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Other terms for pervasivecomputing:

Ubiquitous computing

Calm technology

Things that thinkEveryware

Pervasive internet

Ambient intelligence

Proactive computing

Augmented reality

Characteristics of pervasivecomputing:

Physical integration: integrationbetween computing nodes and the

physical world.

Instantaneous Interoperation:devices interoperate

spontaneously in changing.


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Pervasive Computing is the ability to accessinformation and software applications anytime andanywhere.

Computing and communication capabilities areembedded in the infrastructure and disappeared fromhuman users.

People use computer-assisted task-specific devices,instead of computing devices.

Using computing technologies will be as natural asusing other non-computing technologies (e.g., pen,

paper, and cups)

Vision and Motivation


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The ultimate goal of Pervasive Computing is to

"make it unnecessary to carry aroundanything with you.

Currently, we must carry many items including:WatchWallet (money, credit cards, membership cards,driving license, name cards, passes, tickets, ...)

NICCell phoneLaptops, PDA'sDocumentsKeys (for houses, cars, offices, ...)

If computing becomes pervasive toits full potential, there will be noneed to carry these items at any time.


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PRINCIPLES OF PERVASIVE COMPUTING

DECENTRALISATION

DIVERSIFICATION

CONNECTIVITY

SIMPLICITY


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The Trends in Computing Technology

1970s

1990s

Late 1990s

Now and Tomorrow ?


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Yesterday: Gadget Rules

Too bad theycant talk to

each other


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Today: Communication Rules

Sync.Download. Done.

Configuration?Too much work


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Tomorrow: Services Will Rule

Pervasive

Computing

bl !


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Tomorrow: We Got Problems!


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Pervasive Computing Era


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It consists of computing devices equipped with sensors, awireless radio, a processor, and a power source.

Physical environment (e.g., environmental pollutions, wildlife).

SENSOR

NETWORKS

It is the study of interaction between people (users) andcomputers.

Basic goal-more user-friendly and receptive to the user's needs.

Long term goal-to design systems that minimize the barrier

between the human's cognitive model.

HUMANCOMPUTER

INTERACTON

Artificial Intelligence is a branch of science which deals with helpingmachines find solutions to complex problems in a more human-like fashion. AI is generally associated with Computer Science, but it has many important

links with other fields such a Maths,Psychology, Cognit ion , BiologyandPhilosophy, among many others.

ARTFCALINTELLGENCE

RELATED FI ELDS

Applications


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USES OF PERVASIVE COMPUTING

BusinessUses

Healthcare

Vending

Micro Payments Military

PersonalUses

Personal Information

Flight Schedules Location

Home interaction


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PILL CAM

Miniature camera

Diagnostic device

It can beswallowed

Once swallowed itgives the dataabout thefunctioning of the

vital organs in ourbody .

REAL TIME APPLICATIONS


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REAL TIME APPLICATIONS

Conductive textiles and inks

print electrically active patternsdirectly onto fabrics.

Sensors based on fabric

monitor pulse, blood pressure,

body temperature.

Invisible collar microphones

SMART CLOTHING


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Intelligent Environment of Pervasive

Computing

Lights, air conditioning, TV automatically switch on and off whenyou enter or leave rooms.

Sit on your favorite chair and TV switches on to the program youusually watch at this time of the day.

Use communicator/pda for phone, remote control, keys

payments, passport, health records, authenticator.

Route input from virtual keyboard to nearest suitable display.

Automatic detection of new items to control and physical

layout in a room or office, using computer vision.


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1. Technical Challenges

The need to make mobile devices smaller, lighter and

have longer battery life means that their computingcapabilities have to be compromised. But meeting theever-growing expectations of mobile users may requirecomputing and data manipulation capabilities well

beyond those of a lightweight mobile computer withlong battery life. Reconciling these contradictoryrequirements is difficult.

Challenges


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2. User IntentFor proactively to be effective, it is crucial that a pervasivecomputing system track user intent. Otherwise, it will be almostimpossible to determine which system actions will help rather

than hinder the user.For example, suppose a user is viewing video over a networkconnection whose bandwidth suddenly drops. Should the system

(a) reduce the fidelity of the video,(b) pause briefly to find another higher-bandwidth connection, or

(c) advise the user that the task can no longer be accomplished?The correct choice will depend on what the user is trying toaccomplish.

Challenges.


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3. Adaptation Strategy

Adaptation is necessary when there is a significant

mismatch between the supply and demand of aresource. The resource in question may be wirelessnetwork bandwidth, energy, computing cycles,memory, and so on.

Challenges.


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4. Cooperation amongst information sourcescannot be guaranteed

Device has reliable information,but makes it inaccessible

Devices provides information,which is unreliable

Once device shares information, it needsthe capability to protect future propagationand changes to that information

Challenges.


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5. Information Security

In a pervasive computing environment,access to trusted third parties and publickey infrastructures is not guaranteed.

Challenges.


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INVISIBLE

SOCIALIZATION

DECISION-MAKING

EMERGENT BEHAVIOR

INFORMATION PROCESSING

ENHANCING EXPERIENCE

CONVERGENCE

Benefits of Pervasive Computing

B fi f P i C i


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Benefits of Pervasive Computing1) INVISIBLE:"Smart" environments will be embedded with computing technologies that will be mostly out-of-

sight. Architecture will gain many more capabilities - with less visual clutter.2) SOCIALIZATION:Interactions with architecture will be more social in nature. "Smart" buildings will illicit a moresocial response from occupants as computers user interfaces embed themselves withinarchitecture.3) DECISION-MAKING:"Smart" environments will help occupants to make better choices as they go about their everydaylives. At key moments within architectural experiences, a good architectural design will make"smart" environments helpful. Such architecture will be more proactive than passive.4) EMERGENT BEHAVIOR:Buildings are now becoming more and more kinetic in form and function. Their movements andconstructed designs come together dynamically to yield behaviors that make them more adaptive.5) INFORMATION PROCESSING:

Architecture will go from crunching data to making sense of data; therefore, eliminating our needto constantly input adjustments.6) ENHANCING EXPERIENCE:As computers ubiquitously embed themselves in our environments, sensors and actuators willcreate "smart" environments where architectural space will be goal-oriented.7) CONVERGENCE:Much of our environment will be supplemented with interconnected digital technologies. Such

interconnectivity will allow for a new type of "sharing" that will serve to eliminate many mundanetasks.


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Buy drinks by Friday (1)

Take out the last can of soda

Swipe the cans UPC label, which

adds soda to your shopping list

Make a note that you need soda for

the guests you are having over this

weekend

Pervasive Scenario


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Scenarios


Approach a local supermarket

AutoPC informs you that you are

near a supermarket

Opportunistic reminder: If it is

convenient, stop by to buy drinks.


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Scenarios.


- Friday rolls around and you have not

bought drinks

- Deadline-based reminder sent to

your pager


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Cell phones will ask thelandline phone what itstelephone number is and

will forward our calls to it.

Wrist watches willmonitor our sugar

Cars will use the Internet tofind an open parking space orthe nearest vegetarianrestaurant inform the owner ofthe needed service orautomatically install thenecessary (software) repair

Digi-tickers or implanted heartmonitors in heart patients willtalk wirelssly to computers,

which will be trained to keep aneye open for abnormalities.

Future Aspects


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Conclusions

Pervasive computing in an increasingly networked world continues to affect moreand more of the world's population. Although this is a global phenomenon,regional and national social and cultural factors will directly influence thetechnologies and promise of pervasive computing.

There is a wide range of potential benefits for government, service providers andconsumers as computing technologies become more pervasive.

There is a debate over how to address concerns over privacy, security safety andsustainability while still realizing the benefits of pervasive computing.


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Mark Weiser, "The Computer for the Twenty-First Century," Scientific American, pp.94-10, September 1991.

Wikipedia : Mark Weiser, Ubiquitous Computing, HCI, AI

M.Satyanarayanan, Pervasive Computing: Vision and Challenges, IEEE PersonalCommunications, August 2001.

D.Saha, A.Mukherjee, Pervasive Computing: A Paradigm for the 21st Century, IEEEComputer Society, March 2003.

Roberto Siagri, Presentation of "Computer you can eat or Portable, High-PerformanceSystems", Eurotech Spa, December 2004

Andrew C. Huang, Presentation of Pervasive Computing: What is it good for?,August 1999

www.wikipaedia.com

MIT Project Oxygen. http://oxygen.lcs.mit.edu/videometaglue.html

CMU Project Aura. http://www-2.cs.cmu.edu/aura/.

IBM Planet Blue. http://researchweb.watson.ibm.com/compsci/planetblue.html

References


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THANK YOU