Urban Sensing

1
Urban Sensing

• Jonathan Yang
• UCLA CS194 Fall 2007

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What Is Urban sensing

• Utilize mobile devices such as cell phones to
  participate in sensor networks that gather,
  analyze, and share sensor data.
• Create a network that enhances sensor data
  credibility and quality while maintaining a level
  of privacy that users may desire.
• Depending on the application of the sensor, urban
  sensing can help in areas such as public health,
  urban planning, and many more.

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Project goal

• To create a network service that can attest to
  the GPS position of a cell phones location.
• A network access point is able to detect the
  location of a device based on the signal strength
  between the two.
• This data would be sent to our network server for
  analysis and processing. Ultimately, it would be
  sent to a client server.

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Project challenges

• Learning how networking and routing work.
• Accessing network packet data at different nodes
  in the network.
• Possibly having to write software running on our
  network servers to process sensor data.
• Sending processed data from our servers to
  end-client.

5
past approaches

• Network attested data can be used for security
  purposes. There have already been different
  implementations implemented by network
  architecture to improve security.
• However, our network architecture not only can be
  used for the sake of adding credibility to sensor
  data, but also can allow the client to collect
  and access the data for other purposes.

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Initial checkpoints

• Understand the network structure
• Understand how routing operates on the network
• Begin monitoring traffic on the network
• Perform background research on urban sensing

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quarter Goals

• By the end the fall quarter
• Send sensor data from mobile devices through the
  access point and router to UCLA server.
• Write software for the server so that the sensor
  data can be extracted from network packets.

8
Quarter Goals

• By the end of winter quarter
• Establish a method for our network servers to add
  relevant sensor information onto the network
  packet.
• The packet is sent through the router finally to
  the client where the sensor data can be assessed
  and utilized for whatever purpose.