Re: Ultrasonic Sensors

["Tommy" <tommy at leesecurity dot net>]

You keep talking as if the shape of the area is going to change weekly.
Are you planning to move this system around, or are you just really
into landscaping. if this is to be a portable system then you have
added another headache to your situation.


rgondzur wrote:

> I would be monitoring outdoor landscaped areas. They could contain
> ponds, waterfalls, ...
> They will vary in size and shape so there is no well-defined perimeter
> that is consistent from one installation to the next. The perimeter
> will more often than not be finished with stone or concrete rather
> than natural grass and soil.
>
> Infra red barriers would be an option if the shape of the perimeter
> was symmetrical but it will often not be that way.
>
> Per my previous post, I was thinking of trying ultrasonics mounted at
> the perimeter of the inner circle, pointing toward the outer circle. I
> would have to space them close enough so their sensing patterns
> overlap to guard the entire perimeter.



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