+ Reply to Thread
Results 1 to 9 of 9

Thread: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

  1. #1

    Cool "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    I present "Halo" ..... my latest Laser Robot scanning system.



    Its been almost a year now that i have had the idea to cast some form of "Halo" around a robot and detect the reflected signal.




    Then after playing with some motor driven angled mirrors and lasers .....
    ..... the idea came..... narrow down the resulting Laser circle and beam it around the Robot........
    Name:  Halo 004.jpg
Views: 1056
Size:  171.3 KB


    I placed a Wii-Camera on the construction to capture the laser circle.....YAY.

    The Hacked Wii-Camera is able to track the Laser at a good speed, although slower is better.

    When the laser beam is broken by an object or a "cliff" then it possible to detect a break in the circle picked up by the Wii-Camera.
    Name:  Halo0000.jpg
Views: 781
Size:  160.2 KB


    Left is low resolution mode approx 120 points Right is high resolution mode approx 1024 points

    Click image for larger version

Name:	Halo 009.jpg
Views:	802
Size:	162.2 KB
ID:	86654Click image for larger version

Name:	Halo 010.jpg
Views:	780
Size:	156.2 KB
ID:	86655


    This is just the start of a whole new concept for me..... still much processing to deal with.
    The laser "Halo" system by my current ballpark calculation provides a 360° sweep circa 1024 points.

    5mw Red laser works best.......
    Pulsing the laser on and off gives a better environment for the wii-camera........

    ...... the wii camera works best when it can see single spots of light........pulsing the laser on and off provides this.....
    Gives an interesting optical effect and shows how you can adjust the resolution by software.
    It also speeds up the sampling time.



    The Xmas bauble acts like a mirror / wide angle lens (its red colour helps to filter out none red colours :-)
    and picks up the relected laser ring off the floor.
    Name:  Halo 011.jpg
Views: 775
Size:  192.1 KB


    Now it turns out that a Red Xmas bauble can reduce the height of the laser pole YAY.
    laser Circle still projected onto floor from above .... then Wii-Camera mounted on robot looking up at a Xmas Bauble.
    The speed of the laser circle should be kept low......the wii camera can only track well at low speeds......

    Name:  Halo 008.jpg
Views: 828
Size:  163.5 KB


    Thats the story so far - the robot tracked vehicle works ....
    .. now its only a case of squeezing code from two propeller systems into one ....

    The Wii code making it all possible is from Graham Stablers which can be found here Wiimote IR blob tracking camera
    Attached Thumbnails Attached Thumbnails Click image for larger version

Name:	HaloMugParallax.jpg‎
Views:	608
Size:	238.0 KB
ID:	86657  
    Last edited by Gareth; 11-07-2011 at 10:25 PM.

  2. #2

    Default Re: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    Another brilliant project Gareth!

    I often think of your Wii LIDAR project. I'm slowly working on Wii camera project myself.

    Thank you for posting this.

    Duane

  3. #3

    Default Re: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    Thanks Duane,
    Wii-mote & camera is like a Swiss Army Knife...... always carry one in your pocket.
    ... Gareth

  4. #4

    Default Re: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    Very cool! You should submite it to Hack-A-Day or Make.
    My wife is very, very understanding

    Prospero: Robot Farmer
    http://www.youtube.com/watch?v=ACtihXjq2B0
    www.DorhoutRD.com

  5. #5

    Default Re: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    Above brilliant!

    -- Gordon

  6. #6

    Default Re: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    I like it!

  7. #7

    Default Re: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    Laser mirror mechanism >>>>Updated


  8. #8

    Default Re: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    Update :- reflector geometry finalised and wii camera localized.
    Click image for larger version

Name:	mirandagold.jpg
Views:	647
Size:	117.2 KB
ID:	86806

    Resulting output improving leaps and bounds.....gaps in circle represent object placed for testing.



  9. #9

    Default Re: "Halo"....... Robot using Hacked Wii-mote Camera / laser scanner

    Halo turns into Miranda , smaller and stable ........
    Name:  MirandaZ_057small_0.jpg
Views: 556
Size:  17.9 KB

+ Reply to Thread

Similar Threads

  1. Replies: 2
    Last Post: 09-05-2011, 02:54 AM
  2. Replies: 8
    Last Post: 02-15-2011, 09:58 PM
  3. Recommendations for a cheap c-size (18"x24") scanner ?
    By Bean in forum General Discussion
    Replies: 6
    Last Post: 12-06-2009, 02:06 AM
  4. Separating the "Stack" and "Free" regions in the "View Info" window of
    By epmoyer in forum Propeller 1 Multicore Microcontroller
    Replies: 2
    Last Post: 04-28-2007, 08:04 AM
  5. Is Real Time data display possible with "Watch" or "Hyper-Terminal"?
    By Capt. Quirk in forum SX Chips and Programming Tools
    Replies: 6
    Last Post: 01-16-2007, 04:05 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts