Numberplate vibrator
Discussion
Ive been thinking 
when plod use a laser gun on your car they aim for the numberplate , soo why not have a device that vibrates your numberplate at high speed that will give a false reading ? ie you could be doing 90 plod zap you but because your plates vibrating they get a reading back of about 300mph ! anyone think this will work ?
when plod use a laser gun on your car they aim for the numberplate , soo why not have a device that vibrates your numberplate at high speed that will give a false reading ? ie you could be doing 90 plod zap you but because your plates vibrating they get a reading back of about 300mph ! anyone think this will work ?
Dunno mate...i suppose its a possibility.
I favour mounting the plate on the far right of the bumper, a bit like alfashite, so as to make a return to a laser gun as hard as possible.
Also ive attended to my plates propensity to reflect, by using a matted perspex front to the plate, ya know the clear stuff that the numbers are stuck to.
It looks a fraction blurred, but only very slightly, and the numbers and background are totally non-reflective.
It looks exactly like a normal plate, except at night when it dosent light up the same as others.
Testing has proved it to decrease the distance an lti20/20 can get a reading back, by some 400 feet give or take a coupla feet.
The white background is sprayed on, not stuck on, and once dry it looks just like a normal plate.
The way to matt the shiny perspex is to use a bit of scotchbrite to remove the shine.
It dosent seem to get any dirtier any quicker than normal.
Also, cut down the surround of the plate to make it as small as regulations will allow. Mine is regulation space/height and size with the minimum border allowed.
It all makes the "target" area smaller and less easy to hit.
Try it, youll like it!
I favour mounting the plate on the far right of the bumper, a bit like alfashite, so as to make a return to a laser gun as hard as possible.
Also ive attended to my plates propensity to reflect, by using a matted perspex front to the plate, ya know the clear stuff that the numbers are stuck to.
It looks a fraction blurred, but only very slightly, and the numbers and background are totally non-reflective.
It looks exactly like a normal plate, except at night when it dosent light up the same as others.
Testing has proved it to decrease the distance an lti20/20 can get a reading back, by some 400 feet give or take a coupla feet.
The white background is sprayed on, not stuck on, and once dry it looks just like a normal plate.
The way to matt the shiny perspex is to use a bit of scotchbrite to remove the shine.
It dosent seem to get any dirtier any quicker than normal.
Also, cut down the surround of the plate to make it as small as regulations will allow. Mine is regulation space/height and size with the minimum border allowed.
It all makes the "target" area smaller and less easy to hit.
Try it, youll like it!
Nah, I prefer the Q' Branch anti-laser missile defence defence system myself.
When you consider the hairdryer operative can zap you from 200 yards away, the vibrations would have to be bloody quick to make a percentage difference in the time taken for the laser to bounce back and thus affect the reading.
DAZ
When you consider the hairdryer operative can zap you from 200 yards away, the vibrations would have to be bloody quick to make a percentage difference in the time taken for the laser to bounce back and thus affect the reading.
DAZ
Dont use them too often myself......too busy doing other things.
However,they are flavour of the month and will be used a lot more often because "speed kills".
We have one on test at the moment which is only the size of a digital camera....so be careful. Gone are the days when you had to rest them on tripods or the roof of the car because they were so heavy.
I have to say though.......the cameras in the little white vans are nothing but revenue collectors from what ive seen.
However,they are flavour of the month and will be used a lot more often because "speed kills".
We have one on test at the moment which is only the size of a digital camera....so be careful. Gone are the days when you had to rest them on tripods or the roof of the car because they were so heavy.
I have to say though.......the cameras in the little white vans are nothing but revenue collectors from what ive seen.
Just get one of these..
www.army-technology.com/contractors/camouflage/avitronics/index.html
Connected to one of these.....
www.army-technology.com/contractors/missiles/mauser/mauser2.html
Can I take any orders?
But if you think you can bully the Truvelo camera boys see what else they make, they'll fight back...!!!!
www.army-technology.com/contractors/civil/truvelo/index.html
www.army-technology.com/contractors/camouflage/avitronics/index.html
Connected to one of these.....
www.army-technology.com/contractors/missiles/mauser/mauser2.html
Can I take any orders?
But if you think you can bully the Truvelo camera boys see what else they make, they'll fight back...!!!!
www.army-technology.com/contractors/civil/truvelo/index.html
There is a real possibility here.
You would need to vibrate the reflector/numberplate at about 75-100 Hz and about 150-300mm amplitude. This will cause the signals over the 1/3rd sec pulse width to be returned with different speeds ( your speed plus/minus about 50 mile/h )
Tonyrec is right - at 400m the beam for an LTI 20-20 spreads out to 3.5m diameter so the detector picks up from the most of the rest of the car ( and other cars )Depending on how matt/filthy/sloping front your car is depends on how good the your real 'reflected with constant speed' signals are compared to the reflected ones which are 'adjusted by vibration'. If the former are good high amplitude ones, the error trapping functions may reject the vibrated ones.
You would need to vibrate the reflector/numberplate at about 75-100 Hz and about 150-300mm amplitude. This will cause the signals over the 1/3rd sec pulse width to be returned with different speeds ( your speed plus/minus about 50 mile/h )
Tonyrec is right - at 400m the beam for an LTI 20-20 spreads out to 3.5m diameter so the detector picks up from the most of the rest of the car ( and other cars )Depending on how matt/filthy/sloping front your car is depends on how good the your real 'reflected with constant speed' signals are compared to the reflected ones which are 'adjusted by vibration'. If the former are good high amplitude ones, the error trapping functions may reject the vibrated ones.
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