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Topic: ROV (Read 2706 times) previous topic - next topic

sri007

Please post your comments and suggestions......  :smiley-surprise:

zoomkat

Most any of them will probably work the same in the end. You probably need to further research the mix of "RF/wireless" and "underwater".
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Bajdi

What does ROV mean?
Maybe you can also consider NRF24L01 modules (version with amp, not the small ones). I have a couple of those and they work very well above water, no idea how they perform underwater :)
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AWOL

All of the methods mentioned in your unnecessary poll will work as badly as any other.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

cr0sh

#4
Mar 03, 2012, 08:28 am Last Edit: Mar 03, 2012, 08:31 am by cr0sh Reason: 1

What does ROV mean?


Remote Operated Vehicle

Typically only applied as terminology to underwater vehicles; for other vehicles, UAV = "Unmanned Aerial Vehicle", and UGV = "Unmanned Ground Vehicle".

There are probably other acronyms used as well (and probably different ones for other languages - the above are mainly for US english). Something I have always found strange, though, is why the english acronym that could be applied to -all- such vehicles became attached to underwater only vehicles; probably something historical or such.

Oh - and another word for similar vehicles (that is, remotely-controlled unmanned robotic vehicles): "telechir" - this word is, however, likely only found in UK literature (and possibly historical, at that - I own a book published in the UK called "Robots and Telechirs" by M.W. Thring, which was published in 1983; it's the only book I've read that has referred to these machines as such).
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dxw00d

Telechir is presumably a latin portmanteau word, like television. Tele translates to 'remote' or 'distant', and I believe chir translates to 'hand', as in chiropractor. So telechir becomes 'remote/distant hand', which makes sense.

stefa24

#6
Mar 03, 2012, 11:15 am Last Edit: Mar 03, 2012, 11:19 am by stefa24 Reason: 1
hi
sorry but you can not use RF system they don't work underwater, good system is rs485 cable

stefano
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arduino UNO rev 3
ide 1.6.0

cr0sh


Telechir is presumably a latin portmanteau word, like television. Tele translates to 'remote' or 'distant', and I believe chir translates to 'hand', as in chiropractor. So telechir becomes 'remote/distant hand', which makes sense.


I believe that was explained somewhere in the book; I probably should have pointed it out...

What I found interesting is that I have only seen that word used in that book, and occasionally in a few other works; IIRC, all were from the UK, as well. It seems like it might have been a coined word "from across the pond" that never really caught on (or stayed within the UK and/or Europe; perhaps it didn't catch "over here"?).

:)
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AWOL

Is a telechir what is known as a waldo in the US?
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

cr0sh


Is a telechir what is known as a waldo in the US?


Well, the term "waldo" is kinda slang (IMHO); it also tends to be applied where "puppets" or other animated systems are concerned (like used by Disney and Lucasfilm - whether as a motion capture system, or to control animatronic systems).

What I believe is the industry term is "teleoperation" for these systems (ie, "teleoperated robot"); otherwise, when referring to individual systems, the terms "ROV" (underwater), UAV (flying), and UGV (ground) are used (there is also a specific acronym used for water surface craft, but I forget what it is; such craft tend to not be in as common usage as the other three).
I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

Goofballtech

#10
Mar 06, 2012, 06:26 am Last Edit: Mar 06, 2012, 06:28 am by Goofballtech Reason: 1
There are wireless underwater technologies but industry hasn't picked up on them for use in rovs because of  cost and the fact that there are too many unknown factors in any given body of water.

wired technologies are the most realistic option for most hobbyists.

What are you looking to build and what tasks will this equipment be expected to accomplish?

These are the ones I play with daily.....  http://www.oceaneering.com/rovs/

cyberteque

The term "waldo" comes from a Robert A Heinlien story.

Waldo was a wealthy guy that had muscular dystrophy, he lived in an orbital habitat.

Wrend

#12
Mar 14, 2012, 07:07 am Last Edit: Mar 14, 2012, 07:40 am by Wrend Reason: 1
Just as a general statement: The lower the frequency, the better, but there can be additional factors as well.

Have a look here to see what kind of challenges are involved with this: http://en.wikipedia.org/wiki/Communication_with_submarines#Very_low_frequency

But as the others have said, It's not very feasible, and you won't be able to achieve much depth.

antony1876

Hi
Don't even try.. Been there ...
Max depth in sea water 50cm max in fresh water 5 meters max.
As stated in post above the lower the frequency the better.
Use a umblicle cable.

Regards Antony

zoomkat

I think Elvis has left the building...
Google forum search: Use Google Search box in upper right side of this page.
Why I like my 2005 Rio Yellow Honda S2000  https://www.youtube.com/watch?v=pWjMvrkUqX0

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