3.4.1 Function
Function defines what the underwater robot ROV must do to achieve its Mission Scope are the focal points of design and building. So the ROV will have to be built according to the expectation around our tools, the first task is to look at ways or the tools which our ROV will require to achieve the tasks.
Sketch these ideas and think about how we could be made more efficient or simpler.
For example, Can the mechanisms or tools be made less heavy, smaller? Is there some danger that if ROV may be ineffective in some way and can we think of a change design of ROV to the correct one?
Build functional mock-ups of these mechanisms or tools. We can use foam core, plastic, cardboard, wood – anything which will enable us to test the basic …show more content…
It would include the motors, propellers, frame, thruster housings and cowlings, camera, tether, pumps, lights, onboard electronics and any tools needed to do the work. So these materials help the ROV to sink but it is not necessary that it doesn’t need any other heavy materials or weight on the ROV.
Additional more maneuverability in an eyeball class ROV or stability in a work class ROV might require the addition of ballast, but we have to keep some points in mind:
Ballast should be less surface area so it has to be very dense to cause minimum drag. It should be placed on the finished ROV for small refinements in stability. It should not be metals (Copper or Tin) which occur chemical reactions between them.
3.4.5 Power
The electrical power is used as the source of energy to drive the ROV’s components. We use 12 VDC (Volts Direct Current) in our ROV. This power is used to drive motors, GSM module, etc.
In our ROV, there will be a pair of small wires one negative (-) and one positive (+), for each motor or other electronics and electrical component on our …show more content…
There is two terminal one for positive (+) and another for negative (-) wire carrying the power inside the tether for an industrial ROV.
Tethers perform several functions as shown below:
i. Power transmission: Copper wires are used for the power transmission inside the multi-wire tether act as conductors to give the electrical power to the ROV and its electrical components. ii. Signal wires: Smaller signal wires on ROVs conduct signals which govern the polarity of power to the motors by ROV microcontroller and other components. On our ROVs, the 12V DC power is used to turn on or off the motors by double pole / double throw (DPDT) switches on the surface and this 12 VDC is also used to give power to the modules and sensors. iii. Clear pictures of the camera FOV is received on the Camera’s LCD set with the help of coax cable. With this cable, we receive the Camera information on monitor located
Function defines what the underwater robot ROV must do to achieve its Mission Scope are the focal points of design and building. So the ROV will have to be built according to the expectation around our tools, the first task is to look at ways or the tools which our ROV will require to achieve the tasks.
Sketch these ideas and think about how we could be made more efficient or simpler.
For example, Can the mechanisms or tools be made less heavy, smaller? Is there some danger that if ROV may be ineffective in some way and can we think of a change design of ROV to the correct one?
Build functional mock-ups of these mechanisms or tools. We can use foam core, plastic, cardboard, wood – anything which will enable us to test the basic …show more content…
It would include the motors, propellers, frame, thruster housings and cowlings, camera, tether, pumps, lights, onboard electronics and any tools needed to do the work. So these materials help the ROV to sink but it is not necessary that it doesn’t need any other heavy materials or weight on the ROV.
Additional more maneuverability in an eyeball class ROV or stability in a work class ROV might require the addition of ballast, but we have to keep some points in mind:
Ballast should be less surface area so it has to be very dense to cause minimum drag. It should be placed on the finished ROV for small refinements in stability. It should not be metals (Copper or Tin) which occur chemical reactions between them.
3.4.5 Power
The electrical power is used as the source of energy to drive the ROV’s components. We use 12 VDC (Volts Direct Current) in our ROV. This power is used to drive motors, GSM module, etc.
In our ROV, there will be a pair of small wires one negative (-) and one positive (+), for each motor or other electronics and electrical component on our …show more content…
There is two terminal one for positive (+) and another for negative (-) wire carrying the power inside the tether for an industrial ROV.
Tethers perform several functions as shown below:
i. Power transmission: Copper wires are used for the power transmission inside the multi-wire tether act as conductors to give the electrical power to the ROV and its electrical components. ii. Signal wires: Smaller signal wires on ROVs conduct signals which govern the polarity of power to the motors by ROV microcontroller and other components. On our ROVs, the 12V DC power is used to turn on or off the motors by double pole / double throw (DPDT) switches on the surface and this 12 VDC is also used to give power to the modules and sensors. iii. Clear pictures of the camera FOV is received on the Camera’s LCD set with the help of coax cable. With this cable, we receive the Camera information on monitor located