Re: Deer camera for cars?

["Robert Green" <ROBERT_GREEN1963@xxxxxxxxx>]

"Nick Hull" <nhull@xxxxxxxxxxxxxxx> wrote in message
news:nhull-68BC27.15270410022006@xxxxxxxxxxxxxxxxxxxxxxxxxx
> I have a trail c amera that takes pictured of deer walking down trails
> in the woods.  I would like to use it to take pictures of vehicles
> entering/leaving my driveway.  I thought the engine heat would trigger
> the IR sensor but there is a problem.  Although the camera can sense a
> deer 30' away it doesn't seem to be able to find my car at close range.
> Any ideas?

Reliable automobile sensing almost always seems to be done by buried
sensors.  I've had my X10 Hawkeyes detect moving cars from 50 feet away -
but not reliable.  Many cars scooted by undetected for reasons I never
bothered to ascertain.  Maybe only well-warmed up cars triggered the PIR.
I'd look toward putting the sensor about a foot off the ground and very
close to the roadway.  A car's exhaust system and engine will be the warmest
parts and they're down below.  Try keeping the sensor pointed north so that
you minimize direct sunlight exposure.

What kind of sensor is it?

--
Bobby G.