Active RFID Tracking Web Application Trilateration Demo

http://www.ns-tech.co.uk/active-rfid-tracking-system/

Active RFID people / asset tracking system video showing an attempt at using trilateration to determine the unknown position of tag using the known position of 3 readers, and signal strengths to them.

Large orange spots indicate positions of readers.

The tag was first placed in the centre, then moved to the top left, top right, bottom right, bottom left, top left, then back to the centre.

As can be seen the code needs improvement. The onscreen marker does mostly move in the correct direction depending on its real world location however has a bias towards the centre.

Category:

Science & Technology

Tags:

• electronics
• active
• rfid
• tracking
• mesh
• networking
• trilateration
• demo