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Thread: DIY telepresence Robot

  1. #1
    Administrator T-1000 vikas's Avatar
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    Default DIY telepresence Robot

    Lately i thought ill make myself a small tele presense robot , i looked around not much work in DIY field ... and most are VERY expensive .

    I basically am looking at a small wirelessly controlled movable platform with a webcam and display with wifi interface with a height of about 5 feet, or a ROV . Anyhow here is a rough draft of components to keep costs At DIY level -

    Android Based ( Cheaper , harder to develop )

    Cheap Android Tablet ( Display + webcam + processor ) ( Rs 5k + at 800 Mhz )
    CDC based pic18f interface for Androind to Motor Drivers
    3 x omnidirectional wheel base , 2x motor driver(if DC) , 3 motors ( approx Rs 3000 )
    LiPo Battries to power whole system ( Rs 500 )

    Windows Based (more exp , easier to develop )

    DMP-EBOX 3350 ( x86 ) ( Rs 5500 @ 1 Ghz )
    Webcam ( Rs 450 )
    Display ( VGA to RCA + CHEAP 7" LCD TV ( Rs 3500 ) / USB Monitor ( Rs 10k + ) )
    CDC based pic18f interface for Windows/linux to Motor Drivers
    3 x omnidirectional wheel base , 2x motor driver (if DC) , 3 motors ( approx Rs 3000 )
    LiPo Battries to power whole system ( Rs 500 )

    What do you guys think , any place for improvements or any experience with such stuff.
    Vikas Patial

  2. #2
    Senior Member Android roopakjada's Avatar
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    LiPo @ 500 ? what capacity are you looking at ? considering the robot height etc.you'll need good motors and even battery of higher capacity. And most of the rates you quoted look reasonable any specific links?

  3. #3
    Administrator T-1000 vikas's Avatar
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    The would be very light , Idea is to keep weight very light , any 2A battery should do .
    Its mainly a ROV with a cheap TFT on a PVC PIPE .
    Vikas Patial

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    Senior Member Android roopakjada's Avatar
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    Oh Ok.

    and a specific link for a 5K tablet ?

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    interesting. .

    I would prefer to go for the second option.

    But then, camera at 5ft swings bad at start and stop, and you lose the target object out of frame. Reinforcements or a sturdier mount might be required.. rest seems fine. Inertia is going to be your worst enemy in this case..
    .... I didnt do it ! ....

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    Administrator T-1000 vikas's Avatar
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    @allbits , yes that is a problem. I was thinking of using the steady cam concept.

    Yep im also going with second method. Hacking Chinese tablets is not that easy.
    Vikas Patial

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    Administrator T-1000 vikas's Avatar
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    I also found these

    http://cgi.ebay.com/S3C2440-ARM9-Boa...item19c1f4a708

    These things just need wheels , Camera,wifi,TFT already there.
    Vikas Patial

  8. #8

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    Hi Vikas,

    Are you planning to use WIFI for the communication and transmission video?

    If you are using WIFI, you can simplify the robot, y only using a WIFI Digital Photo Frame and an IP camera on the robot.

    To control the robots movement, you can send some kind of encoding in the image that is being displayed on Photo Frame...

    I dont know if it is practically possible, the net speed and image file size play great role in performance, but theoretically yes.
    Last edited by anilmaddala; 08-21-2011 at 08:02 PM.

  9. #9
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    That would be a costly project...
    I very much interested on the video(camera) part i.e.. if it is possible in a bit cheap way, because implementing a CCD with wireless transmission is too expensive...at least for me
    Good luck and keep us up to date with your project.
    A man would do nothing,if he waited until he could do it so well,that no one would find fault with what he has done.
    - CARDINAL NEWMAN

  10. #10
    Administrator T-1000 vikas's Avatar
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    For me i do not believe in shortcuts . I want the Robot to be independent and standalone which can run around using wireless inter net connection.
    Vikas Patial

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