3. What is Pervasive Computing?
Pervasive means “EXISTING EVERYWHERE”
Pervasive computing incorporate the future of network computing
enabling wireless communication between individuals and
computing devices and between devices itself.
Pervasive Computing devices are tiny, invisible microprocessors
embedded in any type of objects like clothes,home,cars,watches
etc.,
Also known as Ubiquitous Computing.
4. Definition:
In Technology View
Computers everywhere – embedded into fridges, washing
machines, door locks, cars, furniture, people.
intelligent environment – Lights, air conditioning, TV
automatically switch on and off when you enter or leave
rooms.
Mobile Computing Vision –Universal connectivity to
anywhere, anytime.
In User View
Invisible – implicit interaction with your environment
Augmenting human abilities in context of tasks
Ubiquitous = mobile computing + intelligent
environment
5. Why Pervasive Computing?
Pervasive computing is the growing trend towards embedding
microprocessors in everyday objects so they can communicate
information.
pervasive computing is the concept related to the ability to
perform computing tasks on any type of devices.
this technology is moving beyond the personal computer to
everyday devices with embedded technology .
6. History:
In the 21st century the technology
revolution will move into the
everyday, the small and the
invisible
“The most profound technologies are those
that disappears. ”
Mark Weiser (1952 –1999),XEROX
PARC(Palo Alto Research Center)
7. Pervasive computing is the third wave of computing technologies
to emerge since computers first appeared:
First Wave - Mainframe computing era: one computer shared
by many people, via workstations.
Second Wave - Personal computing era: one computer used
by one person, requiring a conscious interaction. Users
largely bound to desktop.
Third Wave – Pervasive computing era: one person, many
computers. Millions of computers embedded in the
environment, allowing technology to recede into the
background.
8. Pervasive Computing Components
Pervasive computing involves three converging areas of
Information and Communications Technology(CIT):
Computing (‘smart devices’),
Communications (‘connectivity’)
User interfaces
9. Smart Devices
can communicate with each other
sensors: input devices that detect environmental changes, user
behaviors, human commands etc;
processors: electronic systems that analyze input-data;
actuators: output devices that respond to processed
information by altering the environment via electronic or
mechanical means.
For example, air temperature control is often done with
actuators. However the term can also refer to devices which
deliver information rather than altering the environment
physically.
10. Connectivity (network)
• Many existing and emerging wireless technologies serve in
Pervasive Computing:
Zigbee and Bluetooth :sensors and actuators - low
energy consumption, short distances (up to 10 meters)
Wi-Fi - devices : middle ranges (several hundreds of meters)
3G /4G : A home gateway to Internet - long ranges (several to
tens of kilometres)
11. User Interfaces
point of contact between ICT and human
Active: Users control PC technologies and devices
Passive: PC control in the background
For example recognizing a person’s face. It might also be
based on sound, touch recognition, or other sensory
information like temperature.
12. PERVASIVE NETWORKING
Pervasive networking is the ability for devices to
autonomously arrange themselves into local networks and
exchange information through these networks.
Components of Pervasive networking:
Pervasive Network Layer
Pervasive Access Layer
Pervasive Device Layer
Pervasive Human Machine Interaction Layer
Pervasive Human Core Layer
13. Layers of Pervasive Networking
Pervasive Network Layer
This layer includes all networks and the networks are
connected directly or indirectly to the internet. Server and
Gateways are the important parts in this layer.
Pervasive Access Layer
This layer deals with pervasive network connection
issues. Issues considered in this layer are Service Discovery
and Management, network access protocols.
14. Layers of Pervasive Networking
Pervasive Device Layer
This layer includes all user interactive devices whether they
are interacted directly or indirectly. Issues considered in this
layer are Sensors and Smart Devices.
Pervasive HMI Layer
This layer deals Human interaction with all network
accessed devices.
15. Layers of Pervasive Networking
Pervasive Human Core Layer
This layer is the inner layer of the Pervasive networking.
Issues in this layer are based on the various applications.
Applications considered for human core layer are such as
Health care, smart home, business application etc.,
16. Applications Of Pervasive Computing
Healthcare
Intelligent bandages that can tell how the injury is doing
or video consultations with doctors, that can treat
patients at home.
Home care
Transport
Environmental Monitoring
Industry & Academia
17. Example:
A visitor brings his/her laptop into a meeting room and without
manually configuring it in any way uses it to send his
presentation to the room’s projector
Physical integration: the projector can be activated from any
laptop in the room
Instantant interoperation: A laptop can spontaneously
interact with the projector and control the presentation
Can be made context-sensitive, e.g., allowing only a particular
visitor to do so
18. ADVANTAGES OF PERVASIVE COMPUTING
Manage information quickly, efficiently and
effortlessly.
Convenient access to relevant information stored on
networks, allowing them to easily take action anywhere,
anytime.
Environment will be supplemented with interconnected
digital technologies.
19. DISADVANTAGES OF
PERVASIVE COMPUTING
Pervasive Computing is not entirely secure.
Frequent line connections that are broken.
Slow Connections.
Very expensive operating costs.
20. CONCLUSION
Information can be accessed when and where it is needed.
Imagine Having a SINGLE remote to control all your
Electronic Gadgets.
But still Privacy and Security major drawbacks of the
Pervasive Computing.
