Sentient computing
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Sentient Computing. Presenter : Alhaf malik .K Syed Ammal Engineering College, Ramanathapuram. Sentient computing is a form of ubiguitous computing which uses sensors to perceive its environment and react accordingly…. Goals :

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Sentient Computing

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Sentient computing

Sentient Computing

Presenter : Alhafmalik .K

SyedAmmal Engineering College,

Ramanathapuram.


Sentient computing

  • Sentient computing is a form of ubiguitous computing which uses sensors to perceive its environment and react accordingly…

  • Goals:

    • build Sentient Spaces = computerised environments that sense & react

    • close gap between user and computer by using context

    • make ubiquitous computing reality through Sentient Computing

  • Ubiquitous Computing:

  • Includes pervasive tech,calm tech,things that thing,everyware,pervasive internet

  • Literaly visible effectievly invisible


Sensors

  • Auotomobiles,machines,aerospace,industry,robotics…

Sensors

  • Active badges:

  • Identity+room level+button

  • Label,infra red beacon,receiver in room

  • Tech limited acces through doors

  • Computer terminal adopts your settings by “teleporting”

  • Infra red location:

  • 15 meters range diffuse

  • Room scale accuracy 95% of time containment


Sentient computing

  • Proximity: active badges

  • User/object wears badge

  • Badge emits id over IR

    • IR doesn’t penetrate walls

  • Active bat:

  • Low power,wireless,indoor location system accurate upto 3 cm

  • It requires minimum of three reference nodes for calculating distance

  • Bat System

  • Light weight wearable devices contain 433mhz radio transceiver, ultrasonic transducer,battery

  • Goal is to propagation of ultrasound from a bat to its local receiver to determine bat’s position


Sentient computing

  • System principles:

  • Bat & system is connect to sensor network communicate using radio channel

  • Each bat have 2 transducers pointing in different directions to create ultrasonic emission in wearer

  • Power:

  • Achived through dynamic positioning update rate, ket to present motion of bat,sensed using jitter switch

  • Maximum updation rate is 15 Hz

  • Accuracy:

  • Accuracy of 3cm,95% of time of time is achieved

  • Reflection from smooth surface,corner of room result in worst result


Sentient computing

  • Spatial Indexing

  • Based on programming space

  • Events triggered by interaction between tracked entities & pre-defined space

  • Interaction with system done by spatial buttons

  • Spatial database:

  • Index section consist of global & street atlas commonly contains list of named features(towns,streets etc..)

  • Also include identifiers and database named by feature name

  • Features of spatial data bases:

  • It includes spatial index to speed up database operation

  • It includes queries such as….

  • Spatial Measurements: distance between points,polygon area…

  • Spatial function:Modifying existing features to create new ones

  • Spatial Predicates: Allows true/false queries (is there residence located within a miles)


Trilateration

Trilateration:

  • Finding relative position of objects using geometry of triangles like as triangulation

  • For 2d plane using tilateration generally requires 3 reference nodes

  • GPS:

  • It is type of sentient computing includes 24 satellites

  • For navigation ,military,map making, surveying …etc

  • VNC(Virtual network computer):

  • RFB (Remote frame buffer)protocol to remotely control another computer

  • Platform independent

  • Acessing files on one’s work computer from one’s home computer

  • Devoloped at AT&T


Sentient computing

  • Under Research…..

  • Grid-based spatial indexes allocation of relevant objects to their position in grind

  • Grid cell identifiers for rapid acess

  • Old method data driven approach(data dependent mathod)

  • Recent space driven approach

  • Data distribution

  • Automatic control of environment without user intervention

  • Mobile Eye

  • How mobile comm.. And services can be enriched by adding context awareness to them

  • We can view the world using camera mobile

  • Project going in EMI^2(Environment to mobile intelligent interaction)


Mobileeye concept

MobileEye Concept

  • mobile


Sentient computing

Applications:

  • Opening and closing doors automatically

  • A textual indication of where someone is, how fast the are moving, how long they have been there

  • Showing the local context, including who and what else is nearby

  • Personalization by teleporting VNC desktops

  • Surveillance applications which the selection of a particular camera is based on spatial data


Sentient computing

Applications:

  • Opening and closing doors automatically

  • A textual indication of where someone is, how fast the are moving, how long they have been there

  • Showing the local context, including who and what else is nearby

  • Personalization by teleporting VNC desktops

  • Surveillance applications which the selection of a particular camera is based on spatial data


Thank you any question

Thank you, any question?


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