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Wifi Could Be Used To Detect Guns and Bombs, Researchers Say (bbc.co.uk)

Posted by EditorDavid on from the detecting-a-signal dept.

An anonymous reader quotes the BBC: Ordinary wi-fi could be used to detect weapons and explosives in public places, according to a study led by the Rutgers University in New Jersey. Wireless signals can penetrate bags to measure the dimensions of metal objects or estimate the volume of liquids, researchers claim. Initial tests appeared to show that the system was at least 95% accurate.

It could provide a low-cost alternative to airport-style security, researchers said. The system works by analysing what happens when wireless signals penetrate and bounce off objects and materials.

13 of 32 comments (clear)

  1. Can it be uses for... by The+Grim+Reefer · · Score: 4, Funny

    Can WiFi also be used to detect dupes? This was posted within the last couple ofriends days.

    1. Re:Can it be uses for... by The+Grim+Reefer · · Score: 1

      Is a friend day similar to a person day?

      No, it's more like a wife router or penis M&M's. Freaking autocomplete.

  2. We know by nospam007 · · Score: 2

    You told us already.

    1. Re:We know by postbigbang · · Score: 1

      Yep. Same origins here: https://arstechnica.com/scienc...

      --
      ---- Teach Peace. It's Cheaper Than War.
  3. Can it find my lost keys? by raymorris · · Score: 3, Funny

    Guns smuns. I know where my guns are. Can it find my keys?

  4. Duplicate From Three Days Ago by careysub · · Score: 1

    Same story.

    I thought I need to refresh my browser. And this was a weak-tea story anyway.

    --
    Starships were meant to fly, Hands up and touch the sky - Nicky Minaj
  5. Yeah, tinfoil to the rescue by bobstreo · · Score: 1

    If your microwave oven can screw with your 2.4GHZ wifi, I'm pretty sure you can easily defeat this "special" detection method.

    Metal detectors don't work all that well for plastic weapons, or ceramic knives either. Unless you have the detector set to belt buckle and coins in the pocket mode.

    1. Re:Yeah, tinfoil to the rescue by rtb61 · · Score: 1

      Well, having a sense of humour, I could point out that flying exposes you to greater radiation http://jag.cami.jccbi.gov/cari..., for those interested in numbers. So to protect yourself, you can claim health justification for a tinfoil hat and suit, to block radiation, so, hmm. You know it;s coming, they don't like the way you looked at them, strip search and fist up the arse to find contraband, no just torturing you to feed their sexual perversions. I'll holiday at home and the airlines and hotels et al can go fuck themselves, especially in the USA.

      --
      Chaos - everything, everywhere, everywhen
  6. Wow! by Rick+Zeman · · Score: 1

    I read about this exact same thing a few days on this site called slashdot dot org. Maybe the editors should try reading it?

  7. Lower cost? wtf?? by magarity · · Score: 1

    No Senator ever got campaign contributions from a lower cost solution vendor.

  8. Another Divining Rod by BrendaEM · · Score: 1

    Another device and a gut full of prejudice for detaining people.
    https://www.nytimes.com/2009/11/04/world/middleeast/04sensors.html

    --
    https://www.youtube.com/c/BrendaEM
  9. CSIRO by dohzer · · Score: 1

    So will the CSIRO be able to collect licencing fees from body scanners now?
    https://arstechnica.com/tech-p...

  10. Re:I want a wifi camera. by DarkLordBelial · · Score: 1

    Done!

    https://www.youtube.com/watch?...