HTML5 Geolocation API


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HTML5 Geolocation API

  1. 1. Geolocation ID meeting 18 th May 2010 Filip Mares
  2. 2. Agenda •What is Geolocation? •History of Geolocation on the web •Location Technologies •Code Examples •Geotagging •Questions?
  3. 3. What is Geolocation? Location is Context and higher Relevancy Location is becoming the new wave of contextual advertising When people think of location, they think of a place What makes a place? • 51°52’19.62”N, -0°07’15.18”W • 146 Brick Lane, E1 6RU, London • 93 Feet East
  4. 4. Why Geolocation? •People want to talk about where they are •People want to discover what’s around them
  5. 5. History of Geolocation on the web •a lot has changed in a year •2009 was the year of location in the Browser
  6. 6. Location Technologies •IP Geolocation •Triangulation • GPS 10m • Wi-Fi 20m • Cell Tower 1000m
  7. 7. Under the hood of the HTML 5 Geolocation API The Geolocation API itself is agnostic of the underlying location information sources. Common sources of location information include Global Positioning System (GPS) and location inferred from network signals such as IP address, RFID, Wi-Fi and Bluetooth MAC addresses, and GSM/CDMA cell IDs, as well as user input. Typically, your browser uses information about the Wi-Fi access points around you to estimate your location. If no Wi-Fi access points are in range, or your computer doesn't have Wi-Fi, it may resort to using your computer's IP address to get an approximate location.
  8. 8. Technologies comparison IP Address Geolocation • IP Address • Medium Accuracy (City level) • High Availability • Medium Privacy • No End-user Permission • All Browsers Wireless Geolocation • MAC Address and Signal Strength • Medium-High Accuracy • Medium Availability (Depends to Data) • Low Privacy • Required End-user Permission • HTML 5 and above
  9. 9. Sample applications using IP address Geolocation •Display native language and currency •Redirect web pages based on geographical •Digital Rights Management •Prevent password sharing and abuse of service •Reduce credit card fraud •Web log statistics and analysis •Auto-selection of country on forms •Filter access from countries you do not do business with •Geo targeting for increased sales and click-through •Spam filtering by location
  10. 10. Sample applications using HTML 5 Geolocation API •Find points of interest in the user's area •Annotating content with location information •Show the user's position on a map •Turn-by-turn route navigation •Alerts when points of interest are in the user's vicinity •Up-to-date local information •Location-tagged status updates in social networking applications
  11. 11. Other APIs are available •Geode (Firefox 3.1) •Loki (Skyhook plugin) •Google Gears
  12. 12. Geotagging is the process of assigning geographical information metadata, called geo-tags, to various media e.g. photographs, video, websites etc. Mobile Devices (cameras) are geotagging photos
  13. 13. Questions?
  14. 14. Thanks for listening