Difference between revisions of "TrafficCam"

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* Research discrete speed sensors, pay close attention to the interface and data stream.
 
* Research discrete speed sensors, pay close attention to the interface and data stream.
 
* [http://www.hawkingtech.com/products/productlist.php?CatID=32&FamID=58&ProdID=267 directional wifi antenna]
 
* [http://www.hawkingtech.com/products/productlist.php?CatID=32&FamID=58&ProdID=267 directional wifi antenna]
 +
** we need a "Lucent Technologies proprietary connector" according to the [http://www.amazon.com/Proxim-Classic-Gold-PC-Card/dp/B0000C20KH Orinoco manual (page 1-17)] 
 
* [http://www.switching-powersupplies.com/pfc-series.html AC to DC power supply] (I think one of these will do)
 
* [http://www.switching-powersupplies.com/pfc-series.html AC to DC power supply] (I think one of these will do)
 
** SP-100-12 12V, 0~8.5A
 
** SP-100-12 12V, 0~8.5A
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current wifi card:
 
current wifi card:
 
* [http://www.proxim.com/learn/library/datasheets/gold_pccard.pdf orinoco gold classic]
 
* [http://www.proxim.com/learn/library/datasheets/gold_pccard.pdf orinoco gold classic]
** we need a "Lucent Technologies proprietary connector" according to the [http://www.amazon.com/Proxim-Classic-Gold-PC-Card/dp/B0000C20KH Orinoco manual (page 1-17)] 
 
  
 
Current battery and charge controller:
 
Current battery and charge controller:

Revision as of 11:51, 22 August 2008

Gear to record video of the pedestrian crossing and the speed of Eastbound traffic in front of Earlham on National Road West.

To do (ordered):

  • Test-drive current Axis camera "in-situ" on the wind geny's tripod. Use the PMP1 for the interface with the directional WiFi antenna. Location is likely to be the shrubbery near the East side of the entrance.
  • Research all-in-one systems, see Alan's email.
  • Research discrete speed sensors, pay close attention to the interface and data stream.
  • directional wifi antenna
  • AC to DC power supply (I think one of these will do)
    • SP-100-12 12V, 0~8.5A
    • SP-150-12 12V, 0~12.5A
    • SP-150-13.5 13.5V, 0~11.2A
    • SP-200-15 15V, 0~13.4A
    • SP-150-15 15V, 0~10A

current wifi card:

Current battery and charge controller:

Possible technologies:

  • Technologic Systems single-board computer
  • WiFi interface with directional antenna
  • DRS1000 Delta speed sensor
  • Axis weatherproof camera - Consider the AXIS 211
  • POE injector - homebrew with e.g. Linksys vs one with native 12VDC input capability
  • Weatherproof case - Consider the AXIS ACH13HB, the datasheet is available at the same URL as the AXIS 211 camera (above) or the AXIS 290B
  • Mounting pole
  • Step ladder
  • Rope
  • Power Source
  • Large IDE HDD (750GB / 1TB)

Tasks:

  • upgrade Stewie's HDD
  • stop webcam cron jobs
  • unmount weather cam from roof
  • prepare green pelican case
  • prepare pmp1
  • prepare wifi antenna
  • mount cam in enclosure on Dennis roof
  • update cacti hdd monitoring
  • configure stewie BIOS
  • disconnect cam in closet
  • rename new HDD on stewie
  • ask for the pmp1's EC WiFi IP to be available from off-campus
  • timed charging from 110VAC for cam battery
  • capture an MPG-4 @ 1 FPS and stream to stewie via pmp1 port 80
  • install ipchains on the pmp
  • log power up for pmp and cam using cron
  • control wifi up/down on boot
  • redo camera interface to be customized for this project
  • camouflage / paint bright colored gear
  • deploy functional traffic cam unit


Image volume calculation:

  • 60 seconds/minute x 60 minutes/hour x 24 hours/day x 7 days/week x 4.5 weeks/month x 12 months/year = 32,659,200 seconds/year
  • 1 frame/second x 20 KB/frame x 32,659,200 seconds/year = 653,184,000 KB/year or 637,875 MB/year or 623 GB/year

Software architecture:

  • Cache 2 minutes locally
  • Use infobomb stack to transfer and append to current day's movie
  • 4a-3:59a movies, sync with infobomb and roll-over, simple trac or fancydir listing by year-month

Questions for Doug:

  • Interface - 1 second frames, manual video review, automated video review, speed/video correlation,
  • Overall duration, 1 year?
  • Better density