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Nericell: Rich Monitoring of Road and Traffic Conditions using Mobile Smartphones Presented by Abdelrhman Magdy.

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Presentation on theme: "Nericell: Rich Monitoring of Road and Traffic Conditions using Mobile Smartphones Presented by Abdelrhman Magdy."— Presentation transcript:

1 Nericell: Rich Monitoring of Road and Traffic Conditions using Mobile Smartphones Presented by Abdelrhman Magdy

2 The Main Idea Monitoring road traffic condition in a developing region. Nericell uses the accelerometer, microphone, GSM radio, and/or GPS sensors in these phones to detect potholes, bumps, braking, and honking.

3 The Main Achievements avoid the need for expensive and specialized traffic monitoring infrastructure. avoid the need for CAN protocol in cars, which is not present in most cars (e.g., the 3-wheeled autorickshaws in India) [Translation: Toktok]

4 The Challenges complex road conditions (e.g., potholed roads), chaotic traffic (e.g., a lot of braking and honking), and a heterogeneous mix of vehicles (2-wheelers, 3-wheelers, cars, buses, etc.).

5 Pictures

6 Innovation triggered sensing, wherein a sensor that is relatively inexpensive from an energy viewpoint (e.g., cellular radio or accelerometer) is used to trigger the operation of a more expensive sensor (e.g., GPS or microphone). algorithms to virtually reorient a disoriented accelerometer along a canonical set of axes and then use simple threshold-based heuristics to detect bumps and potholes, and braking


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