Wednesday, December 2, 2009

week 7

This week's practical was interesting. I learn to use Ekahau's WI-Fi based Real Time Location System (RTLS).

The Ekahau Real Time Location System is a wireless radio frequency that continually monitors and reports real time locations of tracked sources. It uses patented software-based algorithms to compute location of tracked objects eliminating the need for exciters, choke points, receivers and other proprietary hardware infrastructure. It can also easily scale to support tens of thousands of tags on a single server.


Ekahau tag

Access Point


The components consist of battery powered Wi-Fi tags (left), the Ekahau RTLS comes with the Ekahau Positioning Engine (EPE) server software that calculates the location from Wi-Fi signals, and Ekahau location survey (ELS), an easy-to-use point and click utility for network verification and creating positioning models during system setup.

Equipments for Lab
  • A notebook pre-loaded with Ekahau Site Survey and wireless card
  • T301-A Tag
  • Software Client
  • Access Point
During practical...

  • launched Ekahau Site Survey and connected to T3o1 Wi-FI tag
  • Selected existing map of the IHP room and opened its floor plan map image
  • calibrated floor plan according to scale so that positioning gives the accurate location
  • click on the Record Survey button, have to walk slowly with steady speed so as to capture the data accurately
  • Click on the map when start or stop walking and when changing speed or direction
  • right click on map to finish current survey and released record button
  • place tracking rails on the map to indicate possible travel paths between rooms, corridor, floors and other locations
  • A zone was created(optional) at a particular location in the room with a popup message alert. So whenever a person leaves this zone an alarm will sound out
  • Selected "position-track" to track the notebook used on the map. A green dot shows the real-time location of the surveyed notebook
  • Uploaded the project and activate in the EPE server. The engine IP address and login information was provided by the instructor to connect to the engine
We also used the Ekahau Vision...
  • to search for asset and display its location on a map
  • to perform tag management
  • to create event rules