13: ROV Lab 1- Practice and Mission planning
- Page ID
- 164671
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)Research Proposal For Next Week in the Field
- Who is on your team? List the full names of all team members.
- What questions do you want to ask (think of at least three)?
- What are your hypotheses?
- What data do you need to collect to answer your research questions?
- How will you collect this data? Video recording, Live data collection in the field, and still images?
- How many replicates? What sample size is needed?
- How will you analyze your data?
ROVs and Ocean Technology
This week we are practicing with our MPC MiniROVs, and you will develop a research proposal for next week's lab at the ocean. Remotely Operated Vehicles (ROVs) are an important part of ocean science and have been used for several decades for ocean exploration, especially in the deep sea, where safety and costs limit our ability to visit and explore. They are underwater drones that are connected to and controlled by the pilot. Unlike in air, wireless communication doesn’t work well in water, so we need to have wires to bring back high-resolution video and other data.
Our ROVs have a 100m tether, and the control and video screen use a tablet or phone. Up to two screens can be connected at once to each ROV. The app needed to connect to the ROVs is for Apple or Android and is called “FIFISH” by Qysea.
ROV Operation Team
The safe operation of the ROVs will take many people working in a team with good communication. There will be a few different roles and responsibilities, and once we have things working smoothly, the roles can be switched so that everyone has a chance to try out all the jobs.
The roles are as follows:
- Pilot- Controlling the ROV and listening to other team members
- Navigator- Keeping track of where your ROV is and avoiding obstacles.
- Safety- Watch all deck operations and confirm all people and equipment are safe. This requires looking at the dock area as well as the ocean for boats, etc.
- Tether control- Let out and reel in the tether to minimize the amount of free-floating tether.
- Science Party- Observe and document scientific findings and direct the pilot.
Setting up the ROV, Tether, and Controller
Make sure the switch on the LEFT handle is on the “A” setting. The switch on the right handle controls the lights.
IMPORTANT SAFETY NOTES:
- All wire connections will be made by your instructor or the TA.
- The thrusters must remain LOCKED until in the water (button #2).
- The thrusters must be LOCKED before you remove the ROV from the water.
Tether Handling
A critical role is making sure that the tether unrolls and rerolls safely and properly. When bringing the tether back onto the spool, you need to maintain a little bit of tension on the wire so that there is no loose wire. Keep a little tension on the wire and slowly turn the handle to spool the wire back onto the reel without any loops, twists, or knots. The wire should be moved back and forth inside the two silver bars to keep an even wrap of wire on all parts of the spool. If any algae or other debris is on the wire, please remove it before wrapping it on the spool.
Control Screen
The controller's screen will look like this when you are connected to the ROV. It will show a lot of different information, as well as the live video from the ROV’s camera.
To connect to the ROV
You will need to connect to the specific WiFi signal from the controller of the ROV you are using. Each ROV will have a different WiFi address, and you need to be sure you are connected to the right one! The WiFi address is on the bottom of the controller and will begin with “FIFISHRC_63xx” and will have two numbers or letters that are specific to your ROV. Select the correct WiFi from the list and use the password to connect. The password is “1234567890”
IMPORTANT! Your instructor or the TA will double-check all connections and settings before the ROV goes into the water. Do not put anything in the water without getting cleared.
ROV Control Layout: The right controller turns the ROV in place, the Left controller moves the ROV
Moving up and Down: The wheel on the left of the controller will descend (move it right) and ascend (move it left).
Turning the ROV
The joystick on the right will tilt up and down, or rotate left or right. The joystick on the left will move the ROV forward or back, and slide the ROV to the left or right.
Research Proposal For Next Week in the Field
- Who is on your team? List the full names of all team members.
- What questions do you want to ask (think of at least three)?
- What are your hypotheses?
- What data do you need to collect to answer your research questions?
- How will you collect this data? Video recording, Live data collection in the field, and still images?
- How many replicates? What sample size is needed?
- How will you analyze your data?