https://old.hacdc.org/index.php?action=history&feed=atom&title=Bluetooth_indoor_location_system 2026-05-07T16:27:23Z Revision history for this page on the wiki MediaWiki 1.39.3 https://old.hacdc.org/index.php?title=Bluetooth_indoor_location_system&diff=10669&oldid=prev 2014-06-16T15:31:52Z

<p><span dir="auto"><span class="autocomment">System: </span> testing guest captcha</span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:31, 16 June 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l10">Line 10:</td> <td colspan="2" class="diff-lineno">Line 10:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*** not robust when traversing NATs</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*** not robust when traversing NATs</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Useful for a conference hall or the like, where an area is large enough to prevent finding ones way or friends easily.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Useful for a conference hall or the like, where an area is large enough to prevent finding ones way or friends easily.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">testing guest captcha</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Hardware==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Hardware==</div></td></tr> </table>

96.231.46.77 https://old.hacdc.org/index.php?title=Bluetooth_indoor_location_system&diff=10638&oldid=prev 2014-06-08T22:33:51Z

<p>Created page with &quot;==System== * Use beacons mounted on stationary objects within a room to allow user supplied devices to triangulate their rough position inside the room * The users may share t...&quot;</p> <p><b>New page</b></p><div>==System==<br /> * Use beacons mounted on stationary objects within a room to allow user supplied devices to triangulate their rough position inside the room<br /> * The users may share their location via various means.<br /> ** XMPP<br /> *** complex<br /> *** relies on external infrastructure eventually<br /> *** robust against network topology traversals (NAT/Firewall)<br /> ** Multicast<br /> *** simple<br /> *** not robust when traversing NATs<br /> * Useful for a conference hall or the like, where an area is large enough to prevent finding ones way or friends easily.<br /> <br /> ==Hardware==<br /> ===SOCs===<br /> * [http://www.mouser.com/ProductDetail/Nordic-Semiconductor/nRF51822-QFAB-R7/?qs=sGAEpiMZZMvQqVCO1QUke9rOCiF3q8UDR59ukwBL9d8%3d Nordic]<br /> * [http://www.mouser.com/ProductDetail/Texas-Instruments/CC2540F128RHAR/?qs=sGAEpiMZZMuReUCzg6bfTFMX9eNsg5flb%2fyNLpDtSPE%3d TI]<br /> <br /> ===Front End/BT modules===<br /> * just as expensive as SOCs<br /> <br /> ==Software==<br /> ===Phone App===<br /> ====Android====<br /> ====iThing====<br /> <br /> ===Firmware===<br /> * bit-bang BTLE library [https://dmitry.gr/index.php?r=05.Projects&amp;proj=11.%20Bluetooth%20LE%20fakery code] for reference<br /> <br /> ====Beacon====<br /> * Similar use cases<br /> ** Beacon tagging - tags beacon to allow device to find the tagged item<br /> *** [http://en.wikipedia.org/wiki/IBeacon iBeacon] - proprietary implementation<br /> * Use [http://en.wikipedia.org/wiki/Bluetooth_low_energy#Proximity_sensing Proximity Sensing] Profile (PXP/FMP) to let user devices know where and roughly how far they are from the beacons.</div>

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