Technical

 

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A two-week study has already been conducted during 2008 in which five Barcelona residents volunteered to equip their respective Bicing bikes on each ride with A/V/GPS. Next we will use this already collected data (70+ hrs of material) to figure out the logistics of the proposed “living map”. Our next step is to develop a fully functioning proof of concept of the A/V/GPS device (its attachment to the bike, security, powering from cyclist etc…) the data capture, compression, storage, serving and the end user interface. What was mocked up in the sketch in Barcelona last year with off the shelf components will be developed as a hybrid A/V/GPS device that is fully integrated with the bike (power supply, security etc..) and streams data live via 3G.


Technical Details 

The flow of the data  from the A/V/GPS device (mapping instrument) to the end user via the web as follows:

1) Information is gathered by the A/V/GPS device

2) When device is reaching full capacity, data is compressed and sent to multi-layer server via 3G network

3) Multi-layer server stores information in RAW format

4) Multi-layer server converts RAW data into readable A/V formats (e.g. Flash Video) and store the files in Streaming Server (A/V Data)

5) Multi-layer server decompresses GPS data and stores it in the Geospatial Server/Database

6) Relationships are built between A/V and GPS information to establish unity

7) End users, through the User Interface, manipulate the information and generate queries that the Front-End Server will handle


Hardware and Software

A/V/GPS Device 

Real time GPS tracking device 

Wide Angle P.O.V.  Pinhole  Audio Video Camera

32 GB NAND Flash Memory

12-volt bike mount generator with rechargeable lithium ion battery

RFID sensor for on off

RF Transceiver (3G)

Multiple of the above components will be necessary to test different configurations

 

Laptop Computer and Storage

MacBook Pro, 15-inch, Aluminium

2.93Ghz Intel Core 2 Duo

4GB 1066MHz DDR3 SDRAM – 2x2GB

320GB Serial ATA @ 7200

1 TB Lacie Hard Drive Array

 

Servers

 Storage servers for raw data (one server, one storage device):

·         Server with minimum of 1 CPU, QuadCore (3GHz per core), 8 GB RAM, 300 GB internal SCSI disks (RAID 1)

·         DAS (Direct Attached Storage) of Fibre Channel SAN (Storage Area Network) with minimum 4TB of capacity expandable to 32 TB

 

A/V and Geospatial data servers (one physical server hosting two virtualized partitions):

·         Server with minimum of 2 CPU, QuadCore (3GHz per core), 8 GB RAM, 300 GB internal SCSI disks (RAID 1) with connection to external DAS/SAN devices

 

Front-end server

·         Server with minimum of 2 CPU, QuadCore (3GHz per core), 8 GB RAM, 300 GB internal SCSI disks (RAID 1) with connection to external DAS/SAN devices

 

This infrastructure can support data load from 100 A/V-GPS devices. 

Operating systems, Web and DB platforms commercially available should be in place for the server hardware in the list (Linux/Unix/Windows, MySQL/Postgres, Apache/IIS).

Application in the mobile device connects to storage server using regular http or ftp connections on top of TCP/IP protocol offered by 3G network. Those connections are used to transmit collected data over regular periods.

 

Software

Final Cut Studio 2.0

Adobe Creative Suite 4 (for print and web)

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