A strong robot platform from scratch

Discussion in 'General Electronics Chat' started by radhoo, Mar 24, 2009.

  1. radhoo

    Thread Starter New Member

    Mar 24, 2009
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    0
    Hi all,

    I've recently built a strong robot platform using some geared motors and some big wheels (28cm diameter)

    See it here, at the bottom:
    http://www.pocketmagic.net/?p=520

    Now what I need is some kind of processing unit capable of handling Video processing tasks. The motors/sensors are controlled by an atmega8, but for video I thought I should use something like an ARM processor.

    Anyone can point me on some start resources?

    I also have a mini itx board with a 1.3GHz celeron but that uses too much power and I can't put a big battery on the robot since the weight would be too much.

    Thanks!
    :)
     
  2. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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    Is the video color or monochrome? Phillips makes some image processing controllers for monochrome, but for anything high resolution or color, you will need a celeron or similar - they have the MMX/SSE extensions for SIMD operations with wide registers.

    There may be "notebook" versions that do not use as much power, but realtime video processing needs a good bit of horsepower.

    Looking at the top of the page you linked, is the processing only tracking a certain brightness/color? If so, that does simplify it a bit, but not much. The other benefit of the x86 based is the huge pool of existing source code.
     
  3. radhoo

    Thread Starter New Member

    Mar 24, 2009
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    Thanks for your reply.

    I'm not worried about the coding, since I am a developer myself.

    At this step I need to see what would be the best hardware choice.

    Did anyone try using a Pocket PC (running Windows Mobile) as a robot brain?
    They are light weighted, need little power to run and they have lots of features like built in Wireless LAN,Bluetooth, even 3G/GSM capabilities.

    thatoneguy, the first robot was only tracking a laser spot, but now I need to add face recognition and other advanced features.
     
  4. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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