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Bubble-Sensing :Binding a sensing task to the physical world usingmobile phones
INTRODUCTIONHere 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.
Bubble-SensingSensing 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
Bubble-Sensing
Bubble-creation phase
Bubble Server
Bubble AnchorBubble Creator
Mobile Sensor Mobile Sensor
Bubble Maintenance PhaseDue 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 based2. Mobility based
Bubble-Server
Bubble CarrierBubble Anchor
Mobile Sensor
Mobile Sensor
Bubble Restoration Phase
ArchitectureProgramming languagesCommunicationSensorClassifierSystem integration
ProblemsHold the bubble in the area of interest.
Recover from lost bubble.Exploit heterogeneous devices.
Privacy and security concernsThe 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.
Related WorkAs 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.
ConclusionSo 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.
ReferencesA.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.
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.
Thank You