I would suggest to use a desktop computer and a camera, it would be chip and
you will avoid developing it, if it's a one time project. I have a software
to do the task, it can use, for example a cheap ip camera. It's intended for
other purposes, but can be modified to identify moving cars and count them.

Regards,

Mauricio Jancic
Janso Desarrollos
www.janso.com.ar
info@janso.com.ar
(54) 11-4542-3519
 

> -----Original Message-----
> From: piclist-bounces@mit.edu 
> [mailto:piclist-bounces@mit.edu] On Behalf Of Debbie
> Sent: Wednesday, October 11, 2006 8:04 PM
> To: Microcontroller discussion list - Public.
> Subject: [EE] Vehicle detection - magnetic sensors?
> 
> PICers,
> I have  a possible(?) project coming up that involves vehicle 
> detection/counting. Pessure mats, wire loops etc not an 
> option. The gizmo needs to be small, & portable - the 
> requirement is to count cars as they enter/leave a large 
> outdoors *BIG* temporary car park. The cars will come down a 
> narrow track marked out with poles/flags, so the sensor can 
> be positioned pretty close as they pass buy. digging up the 
> grass for cables etc - No No. 
> 
> I was thinking maybe of Honeywell's detectors. To wit, one of 
> these --->
> 
> http://www.ssec.honeywell.com/magnetic/mark_det.html
> 
> Has anyone used them? Are they OK? Are there better/cheaper 
> devices around?
> 
> Thanks for advice - Debbie
> 
> 
> 
> 		
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