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====== Indoor positioning systems for Android ====== ===== Foot Path ===== * [[http://www.comsys.rwth-aachen.de/research/projects/footpath/|FootPath]]: a project developed at the Aachen University; * **infrastructure-less tracking**: starts from a known point and with a floor plan; uses accelerometer+gyroscope to determine the path taken from the starting point; * **+** doesn't need to be online, doesn't need any additional information about the environment; * **-** needs a map to be pre-uploaded; * **-** error adds up; TEST: * cloned the [[https://github.com/COMSYS/FootPath|github]] project, imported in Eclipse * downloaded a map using JOSM (download here and run: java -jar josm-tested.jar) * replaced the value in Loader.java, line 200 with the name of the map (epflmap) * chmod +x update-revfile.sh, run ./update-revfile.sh * restart Eclipse, run the app. * it crashes, on all phones, immediately :( * there is a version of FootPath in playstore, this one works well enough to test; * ===== Red Pin ===== * [[http://redpin.org/|Red Pin]] * **wi-fi fingerprint based** TEST * installed Subclipse svn plugin for Eclipse * eclipse freezes :( * downloaded a clean version of Eclipse from [[https://www.eclipse.org/subversive/previous-releases.php]] (my Eclipse: Juno); installed Subversive plugin * checked out the Redpin Code using Import > SVN > [[svn://svn.code.sf.net/p/redpin/code/]] * changed Android target in rghtclck+Project > Properties > Android > select an existing Android (4.3) * running RedPinAndroid 75 crashes immediately, [[redpin-error-log|error log]] * cannot start the server from Eclipse; * when running Redpin from an .apk, server is not reachable; I assume I have to start a redpin server. ===== IDocent ===== * [[http://www.egr.msu.edu/classes/ece480/capstone/spring11/group02/|IDocent]] developed at Michigan State University, aimed at guiding blind people around buildings, has a text-to-speech engine; * uses **wi-fi triangulation** and custom maps; * watch video here http://www.youtube.com/watch?v=OV-9OPnu3cM TEST * dwloaded the [[http://www.egr.msu.edu/classes/ece480/capstone/spring11/group02/documents/iDOCENT.zip|zip file for Android]] * imported the project into Eclipse and set the target Android version * run as application on Motorola test phone; * iDocent freezes, then has to quit because it's not responding; :( ([[idocent-error-log|the log]]) ===== TeroM IPS ===== https://github.com/TeroM/indoor-position-tracker ===== a little bit of microsoft input: RADAR ===== triangulation systems based on signal strength http://research.microsoft.com/en-us/projects/radar/ ===== the calculation ===== how to calculate the geographic midpoint for two or more points on the earth's surface; how to calculate the center of minimum distance; how to calculate the average latitude/longitude http://www.geomidpoint.com/calculation.html ===== MORE ===== * WIGGLE: a contribution based map of wireless access points. https://wigle.net/

android_ips.1394464678.txt.gz · Last modified: 2014/03/10 15:17 by zoza