[ELECTRON] Underpass lighting project query

[Clive Mitchell]

I've just thought of the simplest sensor asuming people would walk
through at a constant speed.  An IR source one side and two receivers
about 6 inches (150mm) apart the other side.  The speed and order in
which the infra red beam was broken would indicate direction and speed
of the person entering the underpass.  That data could then be fed
along a virtual shift register at it's own speed and then overlaid
with others onto the real lighting shift register.

I'm surprised that someone thinks that moving lighting could be
intimidating.  Thank God we didn't go with the underpass ED-209 idea.

http://www.youtube.com/watch?v=mrXfh4hENKs

On 29 November 2010 22:25, Martin McGrath <mcgrath.martin at gmail.com> wrote:
> Yeah,
>
> I was thinking one would be sufficient.



-- 
Clive Mitchell