Speed cameras

swdsman · 07-20-2012, 03:59 PM

How EXACTLY do they work? They can take your plate picture in fog/rain/etc. Do they use an infrared system to take your license plate photo?

Specific technical details would be most appreciated.

Not implying I'm breaking the law or intend to circumvent them (radar speed cameras are actually banned in my state). I just have a bit of morbid curiosity on the subject

Sleez · 07-20-2012, 04:18 PM

there are many different ones, the ones i installed used a digital camera with a very specific flash, to take advantage of the retroreflector aspect of most license plates. (they reflect light directly back to the source) the lights were mounted adjacent to the camera and aimed precisely at the typical plate level.

the software would digitize this image and save the "read" number instead of the actual image. (hughes missile systems targeting adaptation)

they were synchronized to road loops embedded in the asphalt to trigger the picture and calculate the speed.

i installed systems in Holland to catch speeders on the freeway south of Amsterdam.

the system paid for itself in speeding fines in one year!!! the project cost something like $3 mil in 96!!! a lot of tickets!!!

i also installed camera systems on the Bay area bridges, for toll control.

i was also part of the program that had these cameras set up in conjunction with laser smog equipment to identify gross polluters on freeway on ramps in CA and AZ. (SmogDog) interesting stuff.

PalmerGA · 07-20-2012, 04:18 PM

Don't know the answer to your question, but this will keep you entertained for a while.
http://www.photoenforced.com/

07-20-2012, 03:59 PM	#1
swdsman Drives: Chevy Silverado Join Date: Jun 2012 Location: Morgantown WV Posts: 64	Speed cameras How EXACTLY do they work? They can take your plate picture in fog/rain/etc. Do they use an infrared system to take your license plate photo? Specific technical details would be most appreciated. Not implying I'm breaking the law or intend to circumvent them (radar speed cameras are actually banned in my state). I just have a bit of morbid curiosity on the subject __________________ Aerospace Engineering from WVU. Class of: Eventually

07-20-2012, 04:18 PM	#3
PalmerGA Drives: 2013 SIM 1SS/RS L99 Join Date: May 2012 Location: Southwest GA Posts: 8,754 View My Garage	Don't know the answer to your question, but this will keep you entertained for a while. http://www.photoenforced.com/ __________________ 2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint, Nitto Motivo Tires (6-8-18)

07-20-2012, 04:18 PM	#2
Sleez Drives: 2010, 2LT, RS, 6M, ABM (#1893) SOLD Join Date: Mar 2011 Location: Willits, CA Posts: 1,437 View My Garage	there are many different ones, the ones i installed used a digital camera with a very specific flash, to take advantage of the retroreflector aspect of most license plates. (they reflect light directly back to the source) the lights were mounted adjacent to the camera and aimed precisely at the typical plate level. the software would digitize this image and save the "read" number instead of the actual image. (hughes missile systems targeting adaptation) they were synchronized to road loops embedded in the asphalt to trigger the picture and calculate the speed. i installed systems in Holland to catch speeders on the freeway south of Amsterdam. the system paid for itself in speeding fines in one year!!! the project cost something like $3 mil in 96!!! a lot of tickets!!! i also installed camera systems on the Bay area bridges, for toll control. i was also part of the program that had these cameras set up in conjunction with laser smog equipment to identify gross polluters on freeway on ramps in CA and AZ. (SmogDog) interesting stuff.