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Touch'n Locate Demonstration

1 Touch'n Locate demonstration

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1.1 Short description

This demonstration presents the usage of NFC phones and RFID tags to present locations and associated points of interest to the user.

This demonstration is based on the [Team TouchKey>http://team.touchkey.fr/] code.

1.1. User documentation

After touching a tag, the user can :
* View the location on Google Map
{image:map.png}

* Reverse geocode the GPS coordinates to transform in a readable address
{image:reverse.png}

* Search for points of interest near the embedded location
By entering key words...

{image:poi1.png}

... then selecting a result ...

{image:poi2.png}

... and finally by reading the point of interest details :

{image:poi3.png}

* View the tag data
{image:tag_info.png}

1.1 Technical documentation

Locations can be stored in two different ways :
* in a Locate record type : urn:nfc:wkt:L
** fields are stored in their binary representation
** fields order : latitude, longitude, altitude, bearing
** This record type is smallest possible one
* in a URI record type : urn:nfc:wkt:U
** URI format : http://loc/latitude/longitude/altitude/bearing
** This record type can be written directly by most NFC devices

Altitude and bearing fields are optional.

1.1 Dependencies

* [Team TouchKey>http://team.touchkey.fr/] code for Google Map interactions
* [JSON for JavaME>https://meapplicationdevelopers.dev.java.net/source/browse/meapplicationdevelopers/demobox/mobileajax/lib/json/] for JSON results parsing.

1.1 Tips for future improvements

* Cache maps in memory, to bring them back faster
* Improve the points of interest search area