Bubble-Sensing : Binding a sensing task to the physical world using mobile phones

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Bubble-Sensing Binding a sensing task to the
physical world usingmobile phones
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INTRODUCTION

• Here we present the bubble-sensing system that
  support the persistent sensing of a particular
  location , as required by user requests .
  Conceptually, a user with a phone that has opted
  into the bubble-sensing system visits a location
  of interest, presses a button on his phone to
  affix the sensing request to the location,
  and then walks away . The sensing request
  persists at the location until the timeout set by
  the initiator is reached.

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Bubble-Sensing

• Sensing tasks are created and maintained in the
  bubble-sensing system through the interaction of
  a number of virtual roles.
• Virtual roles-
• Bubble creator 
• Bubble anchor 
• Bubble carrier Sensing node

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Bubble-Sensing
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Bubble-creation phase
Bubble Server
Bubble Anchor
Bubble Creator
Mobile Sensor
Mobile Sensor
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Bubble Maintenance Phase

• Due to uncontrolled mobility of the creator , the
  creator may leave the bubble location while task
  is still active .
• So to anchor the bubble to the location of
  interest  we use bubble anchors .
• Two variants for bubble anchor selection
• 1. Location based
• 2. Mobility based

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Bubble Restoration Phase
Bubble-Server
Bubble Carrier
Bubble Anchor
Mobile Sensor
Mobile Sensor
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Architecture

• Programming languages
• Communication
• Sensor
• Classifier
• System integration

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Problems

• Hold the bubble in the area of interest.
• Recover from lost bubble.
• Exploit heterogeneous devices.

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Privacy and security concerns

• The sharing of device resources with unknown
  third parties.
• Individual is privacy concerning their daily
  activities is at risk from other users if bubble
  sensing system is misused.

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Related Work

• As the mobile phone is ubiquitous, and the
  discussion of a mobile phones used as a sensing
  device has some history no large-scale mobile
  cell phone sensor network shave yet been deployed
  in practice.
• In the last few years, the smart phone market has
  grown rapidly (e.g. , Nokia N95, Apple iPhone ) ,
  cultivating ground for research on mobile
  sensor networking.

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Conclusion

• So mobile sensor nodes collaborate and share
  sensing and communication resources with each
  other in a cooperative sensing environment.
• So we presented an approach to support persistent
  location-specific task in a wireless sensor
  network composed of mobile phones.

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References

• A.T. Campbell, S.B. Eisenman , N.D. Lane, E.
  Miluzzo , R.A. Peterson , People-centric urban
  sensing, in Proc. of 2nd ACM/IEEE Intl Conf.
  on Wireless Internet, WICON?06, ACM Intl Conf.
  Proc. Series, vol. 220, No.18,Boston, Aug
  2?5, 2006, (Invited Paper).
• J.Burke , D.Estrin , M. Hansen, A. Parker,
  N.Ramanathan , S. Reddy, M.B.Srivastava,
  Participatory sensing, in Proc. of 1st Workshop
  on Wireless Sensor Web, WSW?06,Boulder, October
  31, 2006.

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Contd..

• T.Abdelzaher , Y. Anokwa , P.Boda, J.Burke,D.
  Estrin,L.Guibas, A. Kansal,S. Madden and J.
  Reich, Mobiscopes for human spaces,IEEE
  PervasiveComputing 6(2) (2007)
• S.B. Eisenman, A.T. Campbell, SkiScape sensing,
  in Proc. of ACM 4th Intl Conf. Embedded
  Networked Sensor Systems, SENSYS04, 2006.

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Thank You