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I'm looking to build a system that can detect the location of a tag within a 6 foot range to an accuracy of one or two inches. I have briefly looked into RFID sensors but I haven't found any that satisfy my needs. Does anybody have a suggestion?

Meghan O'Lone
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    Do you and ZackB have the same assignment by any chance? You might want to look at the answers to his question instead of adding a duplicate. http://electronics.stackexchange.com/questions/148872/how-can-i-find-or-build-a-passive-rfid-tag-with-a-range-of-6ft-as-well-as-an-as –  Jan 13 '15 at 01:02
  • Strange that this question got two upvotes in as many minutes when ZachB got zero in half an hour. – Samuel Jan 13 '15 at 01:03
  • @Samuel Probably because ZachB proposed a solution that not as many people are familiar with, rather than an open ended problem. – Matt Young Jan 13 '15 at 01:04
  • Yes, we have the same project but my question is slightly different. He was asking specifically about RFID while I was asking about general methods for object detection to see if there were any other commonly used methods. I am still looking for any other possible object detection methods other than RFID. – Meghan O'Lone Jan 13 '15 at 01:11
  • @Samuel (Apparently) real name and profile photo help establish credibility even with no rep. – Spehro Pefhany Jan 13 '15 at 01:32
  • @MeghanO'Lone Do you specifically want triangulation as the question states? Or, as ZachB asked, is triatilation an ok solution? – Samuel Jan 13 '15 at 01:42
  • Some video cameras and an led inside a ping pong ball, (diffusor)? Our PS3 has something like that. maybe a few leds, pointing which way. – George Herold Jan 13 '15 at 02:37
  • Decawave has what you are looking for. I am trying to do something similar, but the decawave tag is a little bigger than I am looking for. – alex Feb 24 '19 at 01:08

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