Re: Using RSSI to locate an object

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#2008

From: Frank Raffaeli
Date: Tue, 20 Mar 2007 02:23

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On Mar 19, 8:03 pm, "Josh916" <jka...@gmail.com> wrote:
> I would like to use RSSI to locate an object in a 3D space. The space
> will be a square box with transmitters located on the 4 corners. An
> object will be place at certain positions within the box and I want to
> be able to determine its location inside the box. Much like an
> internal GPS.
>
> I would like to know what components (IC's?) I need to perform such a
> task.
>
> Or if anyone else has any other more effective methods to acheive such
> a task your comments are welcomed.
>
> Thanks,
>
> Josh

RSSI will indicate only the received signal strength, not distance -
and there are a lot of reasons why an accurate position indicator is
impractical using only this method, especially in the near field of
the TX antennas.

It certainly won't work for VHF and above. I have had some success
with short range position indicators using 125 kHz sources. If that is
feasible for you, please indicate the dimensions you are working with.

Frank Raffaeli
http://www.aomwireless.com/

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From: "Frank Raffaeli" <SNIPrf_man_frTHIS@yahoo.com>
Newsgroups: sci.electronics.design,aus.electronics,sci.electronics.basics
Subject: Re: Using RSSI to locate an object
Date: 19 Mar 2007 19:23:12 -0700
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