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AutomaticFuelPrices - Automatic Collection of Click to edit...

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Click to edit Master subtitle style 8/25/11 James Pittman February 9, 2011 Automatic Collection of Fuel Prices from a Network of Mobile Cameras A. Dong, S. S. Kanhere, C. T. Chou and N. Bulusu, Automatic Collection of Fuel Prices from a Network of Mobile Cameras, in Proceedings of the 4th IEEE International Conference on Distributed Computing in Sensor Systems (DCOSS), June 2008
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8/25/11 Outline Introduction Background System Design Computer Vision Algorithm Evaluation Related Work 22
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8/25/11 Introduction Wireless sensor network (WSN) technology has been applied to many different domains This paper presents a concept where WSNs are used for collecting consumer pricing information The specific target for this paper’s effort is in gathering pricing from fuel (gasoline) 33
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8/25/11 Introduction Two stations on the same corner of an intersection can have greatly different prices for fuel Currently websites such as Gaswatch, GasBuddy, and others either: Send workers out every day multiple times to collect and track fuel pricing data. Rely on input from volunteer site users 44
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8/25/11 Background - SenseMart The authors are re-using the Sensing Data Market ( SenseMart) framework they proposed in an earlier paper The SenseMart concept is similar to participatory sensing. It leverages existing infrastructure (WSNs) for data collection and encourages the users to share their data to accomplish 55
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8/25/11 Background - SenseMart The SenseMart framework facilitates the data exchange using a “BitTorrent” style concept They incentivize the system by giving a return to the users proportionate to their contributions to encourages data sharing. They did not detail what the ‘return’ was other than access to accurate data on gas 66
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8/25/11 System Design The proposed system has 2 methods of operation 1. Fuel price collection 2. User query The first is the focus of this paper. . Automatic triggering of users phones . Use of computer vision algorithms + GPS/ 77
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8/25/11 System Design 88
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8/25/11 System Design – Camera Sensor Primary function – automatic capture of images of fuel price boards Assumed that participating users have cameras mounted in car on dashboard on passenger side (in Australia) System could also interface with built in car camera vision systems and transfer data via Wi-Fi or Bluetooth to mobile 99
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8/25/11 System Design – Camera Sensor A control unit in the mobile phone oversees the capturing operations.
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