Page 2 of 2 FirstFirst 12
Results 11 to 17 of 17

Thread: waterproof robot..?

  1. #11
    Senior Member T-1000
    Join Date
    Jun 2004
    Location
    Bombay/Mumbai
    Posts
    498

    Default

    My suggestion would be : use an umbilical cord...You will need alot of channels [like motors,cameras,pumps..]..to control.

    You can always use a radio later.
    Look at all the deep sea missions..they were never radio controlled.
    an example would be the ROVs used for xploring the Titanic,seen the movie "THE ABYSS",theres an underwater bot in tht too.

    IMHO..Build your machine first..test it out with the umbilical.My bet is tht u will stick to the umbilical.

  2. #12
    Senior Member Cyborg
    Join Date
    Aug 2004
    Location
    Bangalore
    Posts
    173

    Default

    Wow .... lots of real cool info on Underwater Vehicles
    Sumandeep Banerjee
    M.Tech, IIT Kharagpur,
    B.Tech, IIT Kharagpur,
    http://www.robotix.in

  3. #13
    Administrator T-1000 vikas's Avatar
    Join Date
    Feb 2004
    Location
    Delhi
    Posts
    1,922
    Blog Entries
    14

    Default

    what about ultrasonic communication ??? ... like the whales communicate ( just givin ideas ) . i belive the data transfer rate will be really low .

  4. #14
    Senior Member Cyborg pkshima's Avatar
    Join Date
    May 2005
    Location
    Delhi
    Posts
    174

    Default

    Whales/dolphins wont like it.
    and so green-peace wouldnt let you do that I guess :wink: :lol:

  5. #15
    Senior Member Cyborg
    Join Date
    Feb 2005
    Location
    MI,USA
    Posts
    160

    Default

    Ultrasound obviously has many problems


    Prob1: Obviusly Channel Capacity...Carrier freq is 40KHz ...you'll be lucky if you get 1000bps...so forget cameras...on the payload

    Prob 2: I dont know of a mechanism to modulate ultrasonics apart from ON-OFF.

    Prob 3: Diffraction. Since sound is much slow, communication protocols will be something like what satellites use ....NOT USEFUL for Real time ..Also large wavelegnth means you'll not get a good range...I guess 200 m maX

    Prob 4: i dont really know how much power you'll need to pump in to the transmitter.


    moral of the story....ULTRASOUND is not worth it yaaar!

    :-)

  6. #16
    Senior Member Cyborg
    Join Date
    Feb 2005
    Location
    MI,USA
    Posts
    160

    Default

    Quote Originally Posted by pkshima
    Whales/dolphins wont like it.
    and so green-peace wouldnt let you do that I guess :wink: :lol:
    Even if you do it...the whales might probably think it is one of their own kind!!!!!!!

    :lol: :lol: :lol: :lol: :lol: :lol: :lol:

  7. #17
    Super Moderator T-1000 docel's Avatar
    Join Date
    Sep 2005
    Location
    BANGALORE
    Posts
    1,441
    Blog Entries
    3

    Default

    HI,
    june , july, aug, sep, oct, nov, dec, jan. 8 months.
    Did any one make anything??

    Will be nice to see some discussion here.
    docel
    ^Anything is possible..
    after YOU prove it!!

    http://bangalorerobotics.tripod.com

Posting Permissions

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