TrafficCam

TrafficCam

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

Research

• 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.
• Delta Speed Sensor DRS1000 + Appropriate PMP
• DR500S + Appropriate PMP
• http://www.stalkerradar.com/stalker-speed-sensor/
• http://www.stalkerradar.com/stalker-speed-sensor/traffic-speed-sensor/Traffic%20Speed%20Sensor%20specification.pdf
• http://www.radargun.net/
• http://www.videojug.com/film/how-to-hack-a-toy-radar-gun
• http://www.make-digital.com/make/vol10/?pg=151
• mpeg4 vs mjpeg

Shopping

• directional wifi antenna / Newegg url
  • comes with N-Type, RP-SMA and RP-TNC connectors
  • We will definitely need 2 or 3 of these MC to RP-SMA Adaptors/Cables (example)
  • Also, we will need at least 10ft RP-SMA extension cable (male to female)
• 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
• DR500S Speed Radar
• TS-7260
• Linksys WRT54GL
• Shrubbery
• 30ft RP-SMA extension cable or Hawking Cable
• 20 ft conduit (available locally)

Current wifi card

• orinoco gold classic

Current battery and charge controller

• EP28-12 battery spec sheet
• Phocos CML10-2 10A,12/24V charge controller spec sheet

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
• log power up for pmp and cam using cron
• control wifi up/down on boot
• camouflage / paint bright colored gear
• port forwarding using router
• change camera power cable
• capture an MPG-4 / MJPEG @ 15 FPS and stream to stewie via pmp1 port 80 / 554
• turn off one antenna on router
• install speed sensor
• redo camera interface to be customized for this project
• make a custom 20 ft serial cable
• measure power consumption of complete unit
• 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