From owner-freebsd-bluetooth@FreeBSD.ORG Tue Apr 17 12:31:04 2007 Return-Path: X-Original-To: freebsd-bluetooth@freebsd.org Delivered-To: freebsd-bluetooth@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 63EAA16A401 for ; Tue, 17 Apr 2007 12:31:04 +0000 (UTC) (envelope-from jonathan.laventhol@imagination.com) Received: from mailgate-lon1.imagination.com (mailgate-lon1.imagination.com [82.211.112.32]) by mx1.freebsd.org (Postfix) with ESMTP id 2FA1413C45D for ; Tue, 17 Apr 2007 12:31:04 +0000 (UTC) (envelope-from jonathan.laventhol@imagination.com) Received: from [192.168.77.11] (global-edge.imagination.co.uk [192.168.77.11]) by mailgate-lon1.imagination.com (Postfix) with ESMTP id 169E42C932 for ; Tue, 17 Apr 2007 12:05:48 +0000 (GMT) Message-ID: <4624B894.6040803@imagination.com> Date: Tue, 17 Apr 2007 13:07:48 +0100 From: Jonathan Laventhol Organization: Imagination Ltd User-Agent: Thunderbird 1.5.0.4 (Windows/20060516) MIME-Version: 1.0 To: freebsd-bluetooth@freebsd.org References: <4624A0A6.7050202@yahoo.com> In-Reply-To: <4624A0A6.7050202@yahoo.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: Bluetooth questions X-BeenThere: freebsd-bluetooth@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Using Bluetooth in FreeBSD environments List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Apr 2007 12:31:04 -0000 Hi -- > Is there a bluetooth device and software that is able to track my > movement (cellphone) within a room in real time, for example if my > cellphones bluetooth is switched on and i am walking around a room can > the bluetooth device on my computer detect that i am in a different > position as i walk around (can it measure the distance of where i am > from the computer and can it handle multiple cellphones) I don't believe you can do this terribly easily with Bluetooth but perhaps you'd like to look at this project with similar goals: http://events.ccc.de/congress/2006/Sputnik It worked pretty well. It doesn't use triangulation of timing like GPS, it works on signal strengths and so is a bit approximate. Regards, Jonathan. -- ______________________________________________________________________ Imagination Limited Registered in England and Wales with Company Registration Number 1442096 Registered Office: 25 Store Street South Crescent, London WC1E 7BL, England Tel +44 (0)20 7323 3300 Fax +44 (0)20 7323 5801 ______________________________________________________________________