---
tags: UR, Juneer 22
date: 27 Oct 2022
---
# CityU Juneer Meeting Rundown

[2021 Manual](https://files.materovcompetition.org/CompetitionArchives/2021/2021_EXPLORER_Manual_10May2021.pdf)
[2021 Archive](https://materovcompetition.org/content/2021-scoring-archive)

## Flow
- Setup zoom/discord livestream & record
- Team name?
- [Examples](https://files.materovcompetition.org/CompetitionArchives/2021/2021WorldChampionshipEXPLORERTeamList.pdf)
- Task management invitation
- Confirm subteam composition
- Workforce distribution?
- Company positions
- Setup documentation
- Submarine structure
- Micro ROV
- What parts to design to complete tasks
- Decide on dates of future meetings
- Use Doodle
- Files of the base robot

## Meeting minutes
- ...
## Todo
- Design Daughterboard
- Design parts used for tasks
- Understand groundstation tether
- Design software and firmware to pilot the submarine
- Complete a technical report

## 2021 Tasks

### Overview

- ## Main Tasks

### Renew seabin
> **^ Seabin ^**
> Replace catch bags
> Reconnect power connectors

### Removing plastic
> Remove 6 floating plastic debris from the surface
> Remove a ghost net
> **^ Ghostnets ^**
> Pull the pin of the ghost net
> Remove the ghostnet and pin from the water
> Remove plastic debris from the bottom

### Coral Reef Inspection


> **^ "Coral Reef" ^**
> [Task demonstration](https://vimeo.com/373234544)
> From one side to another (black to black) while
> 1. Keeping both blue pipes in view
> 2. Keeping red pipes out of view

> Mapping points of interests
> 

> **^ "Coral Colony" ^**
> Use image recognition to determine the health of the coral colony
> Compare current image to past data
- Area of growth -> Green overlay
- Area of damage/death -> Yellow overlay
- Area of bleaching/blotching (discolour) -> Red overlay
- Area of recovery (recolour) -> Blue overlay

### Propagating corals
> Remove 2 coral fragments (pipes) from a structure
> Insert 2 coral fragments into vertical pipe of designated area

### Culling sea stars
> Attach injection device of Velcro hooks to the Velcro loops on the sea stars
> Must remain attached for 10 seconds after release
> To be clarified

### Collecting sponge sample
> Sponge is made of 3 couplings with weight inside
> They are stacked on top of each other
> Collect ONLY the topmost coupling
> - The bottom two couplings MUST NOT be knocked over
>
> Return the sample to the surface

### Retreiving sediment sample from drain pipe
> **^ 6-inch CorexDrain pipe ^**
> Does not curve
> Low light level
>
>Sediment sample is made of 1 pipe with 2 end caps attached to each end
> 32cm rope as grab point
> Build micro ROV to retrieve the sample
> Return sample to surface
> Our people retrieve a sheet of paper inside the sediment
> Compapre the graph with known chemical contaminants
> 

> Determine the type of contaminants

### Estimating the number of mussels in mussel bed
> **^ Mussels ^**


> **^ Mussel bed ^**
> Simulated mussel bed
> - A square of plastic
> - Small & painted plastic disks as "mussels"
> Place a self-designed quadrat with 50x50cm inner dimensions
> Count the number of mussels inside the quadrat
> Judges give us dimensions of the mussel bed
> We estimate the number of mussels in the bed
> We calculate the total amount of water filtered by the mussel bed every hour
> Report to station judge
>
> Example:
> - We counted 7 mussels in our 50x50cm quadrat
> - Given the overall size of mussel bed is 4300x800cm
> - Estimate the total number of mussels as 9632
> - Calculate the total amount of water filtered as 9343.04L/hr if the given filtration rate is 0.97L/hr

### Eel restoration
> **^ Eel trap ^**
> Remove a trap full of eels
> Return the trap to surface
> Pickup empty trap on the surface, side of the pool
> place the empty eel trap in designated area on the bottom

### Photomosiac of subway car submerged to create an artificial reef
> TODO
> Refer to page 43-44 of manual
- ## Secondary Tasks

- ## Constraints

- ## Safety

- ## Technical Report