GeolocationFrances Ho

The identification of the real-world location of an object.

What is it?

35°55′44″N 79°2′22″W

• Time Difference of Arrival (TDOA)

• GPS/A-GPS• Associating geographic

locations with IPs, MAC Addresses, RFIDs, GPS device, Wi-fi locations, etc.• Started in 1999

Methods

Adding geolocation data to various media: photos, videos, websites, RSS feeds, SMS messages, etc.

Built-in/Standalone GPS GPS Chip GeoSMS – I Am Here GeoURL

Geotagging

Adding geographical information to streets, zip codes, etc. from already recognized geographic data in a Geographic Information System (GIS)

Google Maps Bing Maps Yahoo! PlaceFinder

Geocoding

Criminal Investigations/Fraud Detections Geo-marketing/Target Content Regional Licensing Social Networking Games

Location Based Services

Allows user interaction relative to their location

Ad-hoc Networking Paperless Ticketing Social Networks

LBS Applications: Geo-Social Networking

Game-play evolves based on a player’s location

Time/Player Based Geo-caching Turf Wars VirtualPunk SidewalkSquirrel

LBS Applications: Location-Based Games

Share your current location with friends

Share status updates Communicate through

texts and calls Facebook Twitter FourSquare

LBS Applications: Google Latitude

Google Geolocation

W3C Geolocation API

HTML5 Mozilla Geode Twitter Fire Eagle SkyHook

Geolocation APIs

Pros Easy-access info Thousands of apps Easy

communication Cons

Privacy Awareness Spam

Pros & Cons

http://en.wikipedia.org/wiki/Geolocation http://

en.wikipedia.org/wiki/Location-based_service http://en.wikipedia.org/wiki/Geocoding http://

www.pcworld.com/article/192803/geolocation_101_how_it_works_the_apps_and_your_privacy.html

http://compnetworking.about.com/od/traceipaddresses/f/ip_location.htm

Sources

http://en.wikipedia.org/wiki/Geolocation http://en.wikipedia.org/wiki/Location-

based_game http://www.pcworld.com/article/192803/

geolocation_101_how_it_works_the_apps_and_your_privacy.html

http://compnetworking.about.com/od/traceipaddresses/f/ip_location.htm

Further Reading

Any Q’s?