From: Mario Trams
Subject: Re: - More Details
Date: Mon, 13 Jan 2003 16:43:14 -0500
Organization: TU Chemnitz
NNTP-Posting-Date: 13 Jan 2003 15:38:50 GMT
> Thanks for all the suggestions, but I don't know if they'll work for
> my application. I manage fields (football, baseball...) and I wanted
> to put sensors underneath the playing surface to see if any areas are
> "abused" more then others, so i can't have anything sticking out of
> the ground.
Besides your practical issues with whether etc. I think putting
sensors underneath a football field is horribly expensive.
I mean, you would need thousands of sensors. And you must partition
your field(s) in small mosaics (say 50x50cm) that need to have some
bearing. Gras needs to grow on these plates, water must be drained, ....
I can't imagine how much such thing would cost.
If you ask me, I would suggest some kind of optical tracking system.
With such a system you cannot find out how hard the surface is
"abused" at a certain moment, but you can get some measures how often
objects (i.e. players) are located at a certain point. I guess, this
is what you want to know, actually.
All you would need would be a camera, a computer, and a more or less
complex software that probably has not yet been developed.
I'm not an expert in soccer, but I think once I saw some analysis
where they showed a picture of the ball distribution in the field
(i.e. blue: the ball was never there, red: the ball was very often there).
But I'm not sure whether this analysis was done by an automatic