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Information to build a ROV

Old 10-06-2003, 03:26 AM
  #1  
dthk
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Default Information to build a ROV

Techical problem need to solve for build a wireless ROV with wireless CAM.

1. R/C can communicate with the model under the sea around 50ft depth?
2. Any wireless CAM transmitter can transmit the signal to the ground?
3. Which website have hydraulic thrusters for sale?


I want to build look like this:
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Old 11-01-2003, 02:10 AM
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Mystic
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Default RE: Information to build a ROV

a quick way to solve your dilemma of the broadcast range is to use a floating antena, deal the radio compartment then lengthen the antena. you need to devise a way to retrieve the extended antena, you could use a spool or like an inboard anchor type system, then just place a boey on the end to take out the antena as you dive. as for the hydraulic thruster system, I dont think that is somthing you can just buy off the shelf. that you would have to make from scratch. using a sealed electric thruster system would probably be more efficent and more economical.
Old 11-30-2003, 02:12 AM
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BrittB
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Default RE: Information to build a ROV

If your going to have a floating antenna, why not just eliminate the radio altogether? Run the cable to the control station on the boat, then you don't have to carry radio gear or batteries. Your video will be better too and you can run really bright lights to boat. It gets pretty dark at 50 feet and bateries limit your stay. Also, as a fail safe, you could run a metal cable to help retrive it should anything go wrong. One other point to ponder, radio siginals don't travel more than a few inches below the surface in salt water. If he were to go deeper than his floating antenna wire allowed, then he may loose his ROV. In fresh water, there would not be a problem as I've heard of depths to 40+ feet with no problems.
Old 12-01-2003, 12:02 AM
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LtDoc
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Default RE: Information to build a ROV

dthk,
1. R/C can communicate with the model under the sea around 50ft depth?

Instead of RF control, why not sound (ultra-sound?) as in sonar? Not as fast as RF
and the bandwidth may not be as great, but certainly possible.

2. Any wireless CAM transmitter can transmit the signal to the ground?

Still have the limitations of RF under water, but with judicious choice of frequencies
may be possible.

3. Which website have hydraulic thrusters for sale?

Try doing a search for 'water jet propulsion', or even magnetic pulse jet propulsion
if it's in sea water.

- LtDoc

PS - Take a look at the ROV here; <http://www.modelboatmayhem.co.uk/> ,
under "Your Models" in the menu on the left.

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