Slashdot Mirror

← Back to Stories (view on slashdot.org)

The Quintessential Sentry Gun

Posted by CowboyNeal on from the deadly-secure dept.

mollyhackit writes "Aaron and Ezra built an automatic sentry gun using an airsoft gun, some hobby servos and a webcam.The camera automatically identifies and tracks targets. They tested it on each other to make sure it worked; video included!"

7 of 276 comments (clear)

  1. Re:Cubicle Defense Mechanism by BrynM · · Score: 4, Informative
    Thinkgeek offers one that shoots foam discs.
    (homer)
    mmmmmm.... toys
    mmmmmmmmm.... linky...
    (/homer)
    --
    US Democracy:The best person for the job (among These pre-selected choices...)
  2. mirror by jaredmauch · · Score: 3, Informative
    here 8MB Quicktime. on my historically fast host.

    If you're in Asia use this link.

  3. CTRL-H Defined by WidescreenFreak · · Score: 4, Informative

    CTRL-H is the UNIX-standard control code for a backspace. It's used in this case for humorous effect or sarcasm.

    Example: He is stupid^H^H^H^H^H^Hcool --> "He is cool", but that's not what you originally typed, hence the humor or sarcasm.

    UNIX 101 is over for today. Class dismissed.

    --
    The Overrated mod is for reversing inappropriate, positive mods, not for voicing disagreement with a post.
    1. Re:CTRL-H Defined by StikyPad · · Score: 5, Informative

      Right, but the "joke" originates from actual incidents of old terminal programs storing the ^H rather than erasing the previous character. Occasionally, BBSes would have backspace set to something other than ^H. When someone would post a message, and they sent the ^H sig, their own terminals echoed a backspace, but the remote BBS simply logged the ^H as part of their post.

      --
      https://www.eff.org/https-everywhere
  4. Re:Cubicle Defense Mechanism by jonfelder · · Score: 4, Informative

    I bought the one on Thinkgeek. As someone else mentioned, it doesn't track. It's still cool, but has a big problem. The flicker of flourescent lighting triggers the motion sensor on it.

    Makes it kind of lame in an office environment.

  5. Re:Little brothers ARE good for something! by Kyaphas · · Score: 5, Informative

    It's an airsoft gun. The bb's are 6mm plastic. Much less inertia and penetration capability. Not that he doesn't still need a mask, but they're not as powerful as your run-of-the-mill 4.5mm steel bb's.

    --
    ---- The price of freedom is eternal vigilance. -Thomas Jefferson
  6. Re:The Army will be all over this by Molochi · · Score: 3, Informative

    Phalanx has been around for a long time, since the '80s I think. The navy uses it to shoot missles out of the sky with a 20mm Vulcan cannon. If you've played BF2, it's that gun mounted on the aircraft carrier. Except in RL it's automated.

    --
    "The Adobe Updater must update itself before it can check for updates. Would you like to update the Adobe Updater now?"