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Article #2019Re: Using RSSI to locate an object
From: Josh916
Date: Wed, 21 Mar 2007 04:56
Date: Wed, 21 Mar 2007 04:56
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4342 bytes
On Mar 21, 3:33 pm, Donald <Don...@dontdoithere.com> wrote: > 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. > > > 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. > > > I hope that helps. > > > Josh > > > On Mar 21, 2:44 am, chuck <nos...@nospam.org> wrote: > > >>Josh916 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 > > >>GPS doesn't use RSSI, of course. > > >>Is the task you want to perform the use of RSSI, or the determination of > >>position location with a box? What kind of accuracy do you hope to achieve? > > >>Have you considered ultrasonic distance measurement? > > >>Chuck > > >>----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----http://www.newsfeeds.comThe#1 Newsgroup Service in the World! 120,000+ Newsgroups > >>----= East and West-Coast Server Farms - Total Privacy via Encryption =----- Hide quoted text - > > >>- Show quoted text - > > Josh, > > Your idea has been tried by big governments with big budgets. > > NO, it will not work. > > If you care to read a little, you may find a not so cheap way of doing > what you want:http://en.wikipedia.org/wiki/Pseudolite > > google has lots of links:http://www.google.com/search?hl=en&c2coff=1&sa=X&oi=spell&resnum=0&ct... > > good luck > > If you find a way of getting this done, in any home made way, > please let us know. > > donald- Hide quoted text - > > - Show quoted text - Thanks for everyones help, RSSI was mentioned to me by a fellow academic and I'm at the stage of researching its possiblilites. He seems to think that it is possible. I will keep looking into it as I also have a backup plan using the webcam. --------------- AS FOR PHIL ALLISON I THINK YOU SHOULD LOOK AT THIS WEBSITE: http://members.iinet.com.au/~rutlidge/alanindex.html IT SEEMS YOUR REPUTATION PROCEEDS YOU. ---------------
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X-Google-Thread: 112d1e,99b7ff176446d3ef X-Google-Thread: 103407,99b7ff176446d3ef X-Google-Thread: 111d0a,99b7ff176446d3ef X-Google-Attributes: gid112d1e,gid103407,gid111d0a,public X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!l75g2000hse.googlegroups.com!not-for-mail From: "Josh916" <jkacen@gmail.com> Newsgroups: sci.electronics.design,aus.electronics,sci.electronics.basics Subject: Re: Using RSSI to locate an object Date: 20 Mar 2007 21:56:10 -0700 Organization: http://groups.google.com Lines: 85 Message-ID: <1174452970.847074.326170@l75g2000hse.googlegroups.com> References: <1174348989.871006.52080@n76g2000hsh.googlegroups.com> <1174401978_523@sp6iad.superfeed.net> <1174437980.626142.221850@o5g2000hsb.googlegroups.com> <CK2dnZyVvcYDOp3bnZ2dnUVZ_r2onZ2d@comcast.com> NNTP-Posting-Host: 211.30.157.167 Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Trace: posting.google.com 1174452972 1249 127.0.0.1 (21 Mar 2007 04:56:12 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Wed, 21 Mar 2007 04:56:12 +0000 (UTC) In-Reply-To: <CK2dnZyVvcYDOp3bnZ2dnUVZ_r2onZ2d@comcast.com> User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506; InfoPath.2),gzip(gfe),gzip(gfe) Complaints-To: groups-abuse@google.com Injection-Info: l75g2000hse.googlegroups.com; posting-host=211.30.157.167; posting-account=exprhA0AAADDpV0GtCyIKUdar-2RZ5ix