TrafficCam

From Earlham Cluster Department

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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. Possible technologies: * Technologic Systems single-board computer * WiFi interface with directional antenna * DRS1000 Delta speed sensor * Axis weatherproof camera - Consider the AXIS 211, http://www.axis.com/products/cam_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: * <s>upgrade Stewie's HDD</s> * <s>stop webcam cron jobs</s> * <s>unmount weather cam from roof</s> * <s>prepare green pelican case</s> * <s>prepare pmp1</s> * <s>prepare wifi antenna</s> * <s>mount cam in enclosure on Dennis roof</s> * <s>update cacti hdd monitoring</s> * <s>configure stewie BIOS</s> * <s>disconnect cam in closet</s> * <s>rename new HDD on stewie</s> * timed charging from 110VAC for cam battery (need a timer) * capture an MPG-4 @ 1 FPS and stream to stewie via pmp1 port 80 * install ipchains on the pmp * ask for the pmp1's EC WiFi IP to be available from off-campus * 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

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