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  • rasberrypi
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Related

Wireless Controlled Submarine

carl1126
carl1126 over 11 years ago

I am a young hobbyist in electronics and have an idea in mind to build a small submarine which I can control using a computer or iPad. I was wondering what to use to communicate with the submarine, and whether to use an Arduino, Rasberry Pi or a Beaglebone Black ?...I am still not very fluent in all the tech dialogue so if you can try too keep the answers a bit simple..Thanks image

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  • dougw
    dougw over 11 years ago +3 suggested
    Hi Carl, It sounds like a very interesting project. Arduino is lower cost and simpler to implement that the other 2 platforms, and it should fine for your application. There are 3 technologies that come…
  • gadget.iom
    gadget.iom over 7 years ago in reply to simon.ganne +3 suggested
    simon.ganne wrote: most things i've seen in movies etc. is a wire running down to the submarine. This setup has different benefits: ...Not to mention something to pull on if/when the ROV fails completely…
  • Robert Peter Oakes
    Robert Peter Oakes over 7 years ago in reply to simon.ganne +3 suggested
    It is possible to use sound waves yes but the data rate will be much slower and your signal processing will need to be more sophisticated to eliminate noise (The un wanted noise ). Also if your using many…
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  • dougw
    0 dougw over 11 years ago

    Hi Carl,

    It sounds like a very interesting project.

    Arduino is lower cost and simpler to implement that the other 2 platforms, and it should fine for your application.

     

    There are 3 technologies that come to mind for short range underwater communications:

    1. acoustics or ultrasonics (sonar)
    2. radio
    3. light

    Commercial versions of these systems seem to be pretty expensive, but you may be able to make your own at low cost.

    If you keep the commands simple, (say 6 commands - go, stop, left, right, up, down) you could just flash a, underwater LED light at 6 different frequencies to indicate the 6 commands. This would not even require a microcontroller, just some simple digital circuitry. A variation of this is to flash the light at a fixed frequency so ambient light, which does not flash at this frequency, can be ignored. The flashing light would stay on for different lengths of time depending on which command you want to send. Blue light travels further underwater than other colours.

     

    If you also have a light on your sub, it might be easier to see where it is - you could have another command to toggle this on and off to save power.

     

    Another (more complex) approach is to give your sub a sequence of commands using Bluetooth or Wi-Fi while it is on the surface. It would then execute the commands autonomously and then surface (or come up to "periscope depth" to wait for a new sequence of commands.

     

    Doug

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  • dougw
    0 dougw over 11 years ago

    Hi Carl,

    It sounds like a very interesting project.

    Arduino is lower cost and simpler to implement that the other 2 platforms, and it should fine for your application.

     

    There are 3 technologies that come to mind for short range underwater communications:

    1. acoustics or ultrasonics (sonar)
    2. radio
    3. light

    Commercial versions of these systems seem to be pretty expensive, but you may be able to make your own at low cost.

    If you keep the commands simple, (say 6 commands - go, stop, left, right, up, down) you could just flash a, underwater LED light at 6 different frequencies to indicate the 6 commands. This would not even require a microcontroller, just some simple digital circuitry. A variation of this is to flash the light at a fixed frequency so ambient light, which does not flash at this frequency, can be ignored. The flashing light would stay on for different lengths of time depending on which command you want to send. Blue light travels further underwater than other colours.

     

    If you also have a light on your sub, it might be easier to see where it is - you could have another command to toggle this on and off to save power.

     

    Another (more complex) approach is to give your sub a sequence of commands using Bluetooth or Wi-Fi while it is on the surface. It would then execute the commands autonomously and then surface (or come up to "periscope depth" to wait for a new sequence of commands.

     

    Doug

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