3 ms·

Not as crazy as it sounds. With RAIN Rfid you can get the xyz location of a tag from ~30ft away accurate to 6" in realtime. Examples: https://www.youtube.com/w

• benmcnelly 10y ago
  Also, since the app is still on your phone there is no reason they can't be using it to gather data as well.
  • tedmiston 10y ago
    They did say sensor fusion. I'm not sure if they have indoor location tracking in the app but it seems reasonable.
• joezydeco 10y ago
  I don't think that helps in the use case presented here. What is really needed is a way to talk to multiple RFID tags quickly without any crosstalk. Think of a handbag with a dozen candy bars in it. How do you scan them all quickly without missing any? The goal has always been to scan something large in one pass, say a shrink-wrapped pallet of items that could number in the hundreds or thousands. Obviously this is technology that Amazon could benefit from as well, I wouldn't be surprised if there's a lot of technology overlap here.
  • cobookman 10y ago
    > How do you scan them all quickly without missing any? Most RAIN Rfid readers have a read rate of 800+ tags/second. Door portals are a solved solution and now phased arrays are on the market which scan all items in realtime. Take a look at the impinj marketing material for more information. For example the RS2000 chip: http://www.impinj.com/products/reader-chips/indy-rs2000/ http://www.impinj.com/products/reader-chips/indy-rs2000/
    • joezydeco 10y ago
      That's a definite plus. I was just saying that the long-range position tracking might not be as important.