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accessories for hairdressers!
Wanderer:
The only problem is that the ANPR in police vehicles will not read the vehicle and then even if you've not been speeding you'll get charged with attempting to pervert the course of justice.
It was on one of the police stop type programs recently. Guy had used something to fool the cameras and got caught.
Ed
bovaboy:
--- Quote from: "laser_jock99" ---
--- Quote from: "bovaboy" ---I'm not saying how I know, but you need to muddy your number plate a hell of a lot to fool an ANPR camera, to the point of putting lumps of mud on. As soon as the IR flash goes off the plates shine on through. So these muppets will not only be acting illegaly but they'll probably be wasting their time. :P
--- End quote ---
So all I need to do is market some kind of IR reflecting stick-on film (blocking 850nm and above) which is transparent to visible wavelengths.
I could make a fortune!
More on the camera technology here:
www.cctv-information.co.uk/constant3/anpr.html
Nevillef
--- End quote ---
Nope don't think so, they use more than one flash as far as I'm aware (three different wavelengths) so one would probably still get you, not sure if they're all IR but I don't think they are. There was rumours that the M4 corridor is using this technology for speed cameras, everyone else is just using it for journey times and, of course, congestion charging.
laser_jock99:
--- Quote from: "bovaboy" ---
--- Quote from: "laser_jock99" ---
--- Quote from: "bovaboy" ---I'm not saying how I know, but you need to muddy your number plate a hell of a lot to fool an ANPR camera, to the point of putting lumps of mud on. As soon as the IR flash goes off the plates shine on through. So these muppets will not only be acting illegaly but they'll probably be wasting their time. :P
--- End quote ---
So all I need to do is market some kind of IR reflecting stick-on film (blocking 850nm and above) which is transparent to visible wavelengths.
I could make a fortune!
More on the camera technology here:
www.cctv-information.co.uk/constant3/anpr.html
Nevillef
--- End quote ---
Nope don't think so, they use more than one flash as far as I'm aware (three different wavelengths) so one would probably still get you, not sure if they're all IR but I don't think they are. There was rumours that the M4 corridor is using this technology for speed cameras, everyone else is just using it for journey times and, of course, congestion charging.
--- End quote ---
The other approach then would be dazzle the cameras with an IR laser concealed above or through a hole in the number plate. Using a convex lens to spread the beam a <1W 808nm pump laser diode would easily saturate (but not kill for good) the camera CCD. Certainly it would render the number plate unreadable and be undectable too.
Strangely enough though- speeding fines/cameras don't seem to be much of an issue with the drivers on this motoring forum. The cars we drive are as aerodynic as housebricks and have acceleration of the '0-60 eventually' kind!
Nevillef
bovaboy:
lol true, have to say it was one of my reasons for buying a landie, you don't have to drive them fast to put a smile on yer face. :lol:
The Fat Controller:
just the thing for all x5 and soft roader owners :lol: :lol:
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