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New Long-Range RFID Technology Helps Robots Find Household Objects

HizookRobotics writes Georgia Tech researchers announced a new way robots can "sense" their surroundings through the use of small ultra-high frequency radio-frequency identification (UHF RFID) tags. Inexpensive self-adhesive tags can be stuck on objects, allowing an RFID-equipped robot to search a room for the correct tag's signal, even when the object is hidden out of sight. Once the tag is detected, the robot knows the object it's trying to find isn't far away. The researchers' methods, summarized over at IEEE: "The robot goes to the spot where it got the hottest signal from the tag it was looking for, zeroing in on it based on the signal strength that its shoulder antennas are picking up: if the right antenna is getting a stronger signal, the robot yaws right, and vice versa."

38 comments

  1. i can see the procedural now by fermion · · Score: 2

    Person is dead, with a big hole in his stomach. No one around who could have done it, the prime suspect has an alibi, having been no where near the place in months. The only suspicious items are a half eaten box of cookies that came in the mail, and a missing robot.

    --
    "She's a scientist and a lesbian. She's not going to let it slide." Orphan Black
  2. Sold by Anonymous Coward · · Score: 0

    Find my wife's cell phone in our completely messy house, and you have a job for life. Take my wallet.

    1. Re:Sold by pixelpusher220 · · Score: 1

      this won't be 'taking' your wallet. Just reading it from afar....

      --
      People in cars cause accidents....accidents in cars cause people :-D
  3. Put one on the dog's collar. by I'm+New+Around+Here · · Score: 2

    Especially if you have one of those fidgety types that run from everything.

    That robot will be so confused.

    "I swear it was around here somewhere. Not it is way over to the left."

    --
    If you think I voted for Trump because of this post, you're wrong. I voted for Dr. Jill Stein of the Green Party. Again.
    1. Re:Put one on the dog's collar. by Anonymous Coward · · Score: 0

      Especially if you have one of those fidgety types that run from everything.

      That robot will be so confused.

      "I swear it was around here somewhere. Not it is way over to the left."

      Why not just stick on on the end of a ceiling-fan blade?

      Or the cat's collar, the Roomba, your bong, someone's shoe, or a beach ball.

  4. I just want the detector ... by oneiros27 · · Score: 2

    A little tri-corder like device that could help me find my security badge in my house.

    If they have stickers I could put on other things, too, even better.

    --
    Build it, and they will come^Hplain.
    1. Re:I just want the detector ... by jeffmeden · · Score: 2

      A little tri-corder like device that could help me find my security badge in my house.

      If they have stickers I could put on other things, too, even better.

      You already have one, it's called a recent smartphone. Stick-on tags? here you go: https://www.sticknfind.com/

    2. Re:I just want the detector ... by Allen+Akin · · Score: 1

      UGrokIt (ugrokit.com) just started shipping such a thing. (Disclosure: I have worked with UGrokIt.)

    3. Re:I just want the detector ... by camperdave · · Score: 1

      Excellent! Now all he needs to do is find his smartphone.

      --
      When our name is on the back of your car, we're behind you all the way!
    4. Re:I just want the detector ... by Anonymous Coward · · Score: 0

      It works. That's how I found Jesus. He was behind the couch the whole time.

    5. Re:I just want the detector ... by Anonymous Coward · · Score: 0

      Co-author of the paper here. Just for perspective... the UHF RFID tags used in this research cost $0.10 each. Other types of long-range tags just cannot be acquired for that sort of price point (eg. these tags are produced by the *billions* annually for logistics applications).

  5. Paranoia by neoritter · · Score: 1

    Seems like the stereotypical use case is: put RFID on keys, send robot to find lost keys. The little paranoid person in me says, great now some smart techno-burglar can find where I keep my keys and steal my car. That's of course assuming that my key-less entry car isn't easily hackable.

    1. Re:Paranoia by ArcadeMan · · Score: 1

      Imagine a pranking thief, he goes into your house and steal all your RFID stickers, your security cameras, etc. and leave everything else intact.

    2. Re:Paranoia by neoritter · · Score: 1

      Oh my God! And then, when I go looking for my keys, he eggs me! :O

  6. Other Things to Watch For by LifesABeach · · Score: 1

    Walls, Corners, Stair Wells, Stair Cases, the open Front Door.

  7. Why? by Mr+D+from+63 · · Score: 1

    Someone should tell this robot to stop misplacing things.

    1. Re:Why? by johanwanderer · · Score: 1

      Or the people to not move them after the robot dropped them off.

    2. Re:Why? by Mr+D+from+63 · · Score: 1

      That's the robots job!

  8. Potentially very useful by mandark1967 · · Score: 2

    I work at a large organization where we have several thousand computers, most with dual monitors and other peripherals.

    It would be very beneficial if this technology allowed us to perform our yearly inventories by simply walking through each room carrying a tablet or laptop which recorded the devices present in each room.

    We could then see, easily, if any equipment (like secondary monitors) were moved from room to room without permission.

    --
    Sig Follows: "Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself." -- Mark Twain
    1. Re:Potentially very useful by swb · · Score: 1

      Won't someone require a verification of ID tags against actual equipment serial numbers in a case like this, at least for some statistically significant portion of the equipment list?

      Otherwise, you're just inventorying ID tags which could be stuck to anything. Now if they could manage to integrate the tag into the system somehow, although you'd have to define what the system was, otherwise you kind of get into a Theseus paradox situation.

      Which makes me wonder how many empty computer cases have been "inventoried" even though there was functionally no computer inside.

    2. Re:Potentially very useful by X0563511 · · Score: 1

      Why not just place static readers on all the doors - you'll immediately know when something moves from one room to another? Granted you won't know which way it was moving, unless it traversed another door. But, if you know the starting location, there you go.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    3. Re:Potentially very useful by sl149q · · Score: 1

      Yes, but that is no different than any other inventory sticker.

      In other words... the rfid tag becomes the inventory sticker. The difference is that it can be visually inspected OR inventoried quickly with an RFID reader.

    4. Re:Potentially very useful by sl149q · · Score: 1

      Newer Gen2 readers can do limited movement detection. It would be possible to detect direction. But possibly not reliably (if the tag orientation is not correct WRT to the antenna it becomes more difficult.)

    5. Re:Potentially very useful by sl149q · · Score: 1

      Here is an example https://www.youtube.com/watch?...

      That demo is actually with Impinj's last generation reader. Their newer reader also supports this.

    6. Re:Potentially very useful by Anonymous Coward · · Score: 0

      Sheep EID tags.

    7. Re: Potentially very useful by Jakeula · · Score: 1

      Couldn't you simply place a reader on both sides of the door? This way it gets tagged twice with timestamps, and you simply review which door was activated when. This ensures reliable movement tracking.

  9. The holy grail by MindPrison · · Score: 1

    ...of radio wave sensing, would be to analyze how radio waves reflect on various surface materials & mass.

    If we could do this (it would require MASSIVE programming & knowledge of structures and algorithms to recognize structures via RF waves & reflection), then we could use the RF waves as sort of echo-location, kind of like how bats see with the help of sound waves.

    I've known this since I was a kid, when I was messing around with FM-transmitters to listen to my parents quarrel from a safe distance (ok, I was a weird kid), I noticed how I could sense my parents move around because they affected the signal strength and even the frequency shift depending on where they were located in that room. I've been pondering this ever since.

    --
    What this world is coming to - is for you and me to decide.
    1. Re:The holy grail by X0563511 · · Score: 1

      This would work exactly like machine vision (because light is radio) but with much larger antennas, and a lot more transparent/translucent (and very refractive!) materials to cause more computational difficulties.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    2. Re:The holy grail by qvatch · · Score: 1

      Ah yes. It's called RADAR, specifically a http://en.wikipedia.org/wiki/S...

    3. Re:The holy grail by qvatch · · Score: 1

      Oh yes, and in the passive case, have a look at this GPS analysis to detect snow depth. http://xenon.colorado.edu/pres...

    4. Re:The holy grail by Em+Adespoton · · Score: 1

      Think of it this way... design a blueprint of your building in something like sketchup, and tag all the different surfaces according to type. Then put antennas in strategic places in the structure (could do 3 in each room, or surround the entire building) and turn on the multiband antennas.

      The RF interference should be able to be mapped in this way fairly easily; especially if you set state and then open/close doors, turn WiFi on/off, turn on lights/heaters, etc.

      Record all this state information, and then with minimal training, the system should be able to identify all mobile objects and when they moved.

      If you toss in the RFID chips here, you could serialize each major mobile item, and actively track them anywhere in the structure.

      This isn't new, and doesn't need all that much knowledge of RF, just a good AI that can learn.

      See: http://www.extremetech.com/ext... for one way it's been done.

  10. This would be so useful for lost objects at home by mark-t · · Score: 1

    Things I'd put such an rfid on include my phone (when its run out of power and I can't just call it), my car keys, the remote control, my reading glasses (as long as it's small enough to unobtrusively attach to the temple part of the glasses frame), and my cat.

  11. Re:This would be so useful for lost objects at hom by Anonymous Coward · · Score: 0

    Agreed. And (annoyingly) my XV-15 floor cleaning robot. It doesn't beep in distress long enough.

  12. Bet you these things will blab to any reader by Anonymous Coward · · Score: 0

    If you have to make everything trackable, at the very least design the technology such that the tags only respond with identifying information to authorized requests from readers with the corresponding private key, configurable by the user. This is definitely possible (there are RFID chips which can do it), but almost every application of RFIDs leaks identifying information to unauthorized readers.

  13. Need to program it to say by BenSchuarmer · · Score: 1

    "Sara Conner?"

  14. Expensive sollutions by fabioalcor · · Score: 1

    The problem with both StickNFind and UGrokIt and any other similar product I've heard about is that they're too much expensive. 25$ tag on a $10 remote control? Haha.
    I wouldn't mind a product with a short detection range (1 meter for me is good enough to find stuff in lockers and below sofas or inside my car), and/or without any security (for what, burglars can detect stuff with eyeballs too). Doesn't need any fancy stuff like sound beeps or remote tracking or anything, make it simple and CHEAP. I just want a detectable "thing". If it could be affordable (tags in 1 US$ price range), and the tags could be small enough to fit in most stuff (especially the small stuff like keys, thumbdrives, etc), I'm totally sold.

  15. Indeed, quite useful. by Gnostic+Teflon · · Score: 1

    A few years back, a local large-chain supermarket did a major refurbish. UPC codes had been universal for at least five years at the time. While shopping, I noticed that a few different types of canned vegetables were showing up on the shelves without the UPC codes printed on the labels. This was before use-by dates were mandatory. RFID tags could be on product cases or pallets to enable timely inventory rotation, so goods wouldn't be forgotten in the back and bottom of a densely packed row in the store's stockroom. I'm sure I'm not the first to think of this. It should become industry standard practice.

  16. I just want the detector ... by Anonymous Coward · · Score: 0

    Detectors in each room (maybe multiple) with triangulation on top of a map of your house. "Where did I put my keys?" ... opens up Home Google Maps ... "Oh, they're stuck behind the couch. That was easy."