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PRISM: Platform for Remote Sensing using Smartphones

(2010-10-25 16:43:32)
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杂谈

分类: MobileSensing
Tathagata Das, Venkata N.Padmanabhan, Ramachandran Ramjee, Asankhaya Sharma @ Microsoft India
Prashanth Mohan @ UC Berkeley
MobiSys 2010

http://research.microsoft.com/pubs/131575/mobi096-das.pdf

Community sensing need a lot of mobiles to take part in. PRISM is a platform to distribute sensing applications to the proper mobile phones. For example, the mobile users who want to take part in the community sensing should install the PRISM runtime on their phones. When a server want to achieve the photo of a specified place, it can deploy its application(in the form of binary code) to the mobile phones in the vicinity by PRISM. For the mobile users, they may choose to help this server by taking photos of the specified place and then the bin-app can ship the picture back to the server. PRISM provides a platform for these operations.

PRISM consist of three part:
Application Server is the server who wants to conduct community sensing. When they have jobs for the mobile phones, they will ship the binary code of this job to the PRISM server. 
PRISM server is responsible for tracing the mobile phones. When the application servers ask PRISM server to deploy a job in a specified place, PRISM searches the mobile phones in the vicinity of this place, deploy the code to some of the phones and launch to execute it.
Mobile Phones now can do all kinds of sensing. People who are will to contribute to the community sensing should install the PRISM runtime on their phones. When they receive missions from the PRISM server, either opportunistic or participatory will be need to collect data and ship back the data to the server. PRISM provide some security mechanism to protect user's privacy and their phones.

This paper gives three examples of PRISM. The first one is call Citizen Journalist, which require the user the take photos of some specified things, for instance an traffic accident. The second application is Party Thermometer. It needs the users help to decide how hot a party is. It needs to locate the mobile phones that are in the party, which means that just the GPS can not satisfy them. They also use the mobiles to detect music to help decide whether it is in a party. The last application is Road Bump Monitoring, which only need opportunistic sensing, detecting the road bump in an more large area than the previous two applications. 

To conclude, the PRISM is a platform for community sensing to make it much easier to develop and deploy applications.

Only one paper referred this paper:
A Survey of Mobile Phone Sensing
http://www.cs.dartmouth.edu/~campbell/mobile-phone-survey.pdf

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