Re: Using RSSI to locate an object

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#2016

From: David L. Jones
Date: Wed, 21 Mar 2007 02:21

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Josh916 wrote:
> The project is to locate a r/c boat in a roughly 2 to 3m^2 water
> filled box, hence the transmitters or recievers will only be on the 3
> or 4 walls of the box.

This detail would have been useful at the start!
So is it a 2 dimentional problem or a 3 dimentional problem?
i.e. can the water level vary?
If it can vary then you can use a simple water level meter and then
turn it into a 2 dimentional problem.

> It will need to be fairly accurate considering the size of the box
> relative to the size of the boat (i.e down to cm's).
>
> We are also considering placing a webcam above the box and using image
> processing to locate the boat, however I thought we might get more
> accurate results using RSSI.

Nope, not a chance. Visual object recognition is the way to go, with a
water level meter if needed.

Dave.

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From: "David L. Jones" <altzone@gmail.com>
Newsgroups: sci.electronics.design,aus.electronics,sci.electronics.basics
Subject: Re: Using RSSI to locate an object
Date: 20 Mar 2007 19:21:16 -0700
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