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2023-11-14 AEAC 2024 Sync

2023-11-14 AEAC 2024 Sync

Introduction

Please add your name here if you are present during the meeting! Feel free to add it in advance if you plan on attending.

  • @Daniel Puratich

  • @Anthony Luo

  • @Alison Thompson

  • @Conall Kingshott

  • @Tong Zhang

  • @Yuchen Lin

  • @Georgia Westerlund

  • @Daniel Puratich

  • 2023-11-12 Flight Tests

  • 2023-11-11 Flight Tests

    • Anni did cool test cards for this one!

  • Lots of things weren’t setup before this flight test!

  • Pegasus Bullet Connectors

    • Some bullet connectors failed pre light pull tests

      • Solder connection is still fine but the wire is breaking?

        • We should inspect further to see if the wire is breaking

      • May be worth reflowing all of them?

        • There’s a lot of them

      • Should ping in more EE people who were there during assembly

        • @Nathan Green @Neel Patel @Taim Al-Dabbagh

        • see if there are more info on how assembly went

      • Crimping instead of soldering

        • PP45s may not fit in the tubes, too large for the tubes possibly

        • If MT30 is in the tube the PP45s could go on the outside

        • ESCs are reversible, could do MT30s on both sides?

          • may be software reversible, always hardware solder bridge reversible

    • Some of insulation rubbed off on tubes in arms

      • looks like the M5 threads rubbed against it

      • could add Teflon tape on the threads

        • should be an easy fix

      • shoulder bolts

        • would require custom ones to work for our application

        • may be worth looking in to but unlikely

      • Can we test for these being an issue in advance?

      • Issue could be due to when inserting bolts or sliding wires and not in flight issue-

    • Recommend Service Level Inspection once a month - continue flying once fix is in

    • bolts are coated with black oxide

    • Wires are currently the exact length they need to be (ideal for weight?)

      • may be under tension when connected on both ends is pulling wires closer to bolts. Could be part of the issue.

      • leaving more slack will make things easier

    • Could cut into pwr cable

      • three conductors

      • may be worth looking in to

 

  • We should be uploading flight logs and linking in debrief

    • controller and ardu

    • elrs should run off telem port to get logs

    • For Nov 11th the logs somehow got wiped off the SD card

  •  

  • @Anthony Luo

  • AEAC Townhall #1, whoever is attending and representing us fill this out: Doodle Townhall

    • two or three people

    • @Daniel Puratich to deal with this

Systems

  • @Conall Kingshott @Nathan Green @Jonathan Di Giorgio

  • Clamping leg blocks have been installed on the drone

  • @Alison Thompson @Evan Janakievski @Georgia Westerlund

  • Rev one is done on PDM and working on being manufactured

    • need to order resin and CF from Composites Canada.

    • ran out of resin on battery shrouds layup

    • Alison emailing with Graeme on this with what we need to buy and what we can use from composites room

      • may need to buy other stuffs from Composites Canada

  • Working on fleshing out tasks for integrating doors and windows, etc.

    • for next rev of Cabin

    • initially no doors, no windows, just to test flight characteristics

    • Graeme said good to use router for Cabin layups

  • @Andy Zhang @Conall Kingshott @Alison Thompson

  • Battery shrouds exist

    • CF layup last Saturday on Aluminum mold

  • May make another one if we have time

    • current one is light and flexible

    • E3 waterjet is broken so we have to wait for cutting it

  • @Smile Khatri @Mena Azab (Deactivated)

  • some updates but Smile not here

  • @Nathan Green @Georgia Westerlund @Megan Spee

  • no updates

  • @Anthony Luo

  • @Nathan Green tested Lidar

  • May be worth Houston flight of the lidar

    • dont conflict with autonomy stuff

  • Would be a good test of does it worky

    • good test for new pilots

  • @Tom Chiu

  • Working on component selection.

  • @Michael Botros @Mena Azab (Deactivated) @Nolan Haines

  • (No Updates)

  • @Michael Botros @Mena Azab (Deactivated) @Nolan Haines

  • Has been delegated to @Anthony Zhelnakov .

  • @Mena Azab (Deactivated)

  • Arm cable issue from flight test

    • discussed above

  • Possible switch to Anderson Powerpoles connectors?

  • Make quick repair for this weekend, then by Dec 2nd have a more final fix

  • @Neel Patel @Parker Lawrence-Valeriani

  • Working on component selection and schematic

  • Lotta discussion last sync

  • Goal is to finalize stuff before december

  • Perform testing before holidays hit mid december

  • @Farris Matar @Daniel Puratich @Anthony Luo

  • few solder touchups

  • Schematic

  • @Derek Tang @Anthony Luo

  • was pin configuration issue

  • got all the chips talking to each other

  • @Conall Kingshott @Nathan Green

  • Paused.

  • @Nolan Haines @Hardy Yu @Michael Botros

  • Schematic is close to being finished for voltage sensing. @Michael Botros

  • SD Card and shield connectors @Hardy Yu

    • connection to Nucleon is remaining bit

  • Overcurrent protection @Nolan Haines

  • Goal to have board schematic done before exam season.

  • Last EE meeting this was discussed in detail

  • @Yuchen Lin @Stanley Tang

  • Bmx driver in testing

    • since use a lot of external library no unit testing

  • Mavlink message decoder

  • Looking into new GPS

    • email to vector nav to ask them

    • we have a vn300 which can supplement the neom8 and x

    • EFS is looking into comparing chips for INS

    • VN-200 is cheaper and smaller

    • VN does the sensor fusion for you

    • using our objectively worse system may be easier for us?

  • @Alex Yang @Amy Hu

  • Fixed file directory pathing issue issue from last week’s flight test

  • @Tong Zhang

  • Detect target worker, implementing decision handling, implementing flight interface

    • no PRs open yet, but hopefully soon

  • @Arunav Munjal

  • Creating a path on WRESTRC

    • not this weekend, but possibly next weekend could be tested

  • implementing hard and soft limits and going around waypoints

  • @Smile Khatri

  • Houston camera mounting was suboptimal

  • Getting it fixed, some design progress

  • May be worth ordering another camera because we only have one

    • could wait for MEF bc it’s mostly autonomy funding

    • do we like the current camera?

      • there’s not a lot of options for global shutter cameras for our use case

        • light

      • purpling is not a huge deal as long as camera still worky

      • there are cheaper variants of the carrier board for this same camera

        • may have diff mounting holes, but may be easy to accomodate

    • Is there anything else that’s one of one that everything is contingent on?

      •  

Admin

  • @Hardy Yu @Rosanne Zhu

  • Testing Goals beofre end of term

    • end to end sensors

      • Gemini

      • Video over LTE

      • Calibrate Opflow

        • should be quick

      • Rangefinder

        • was tested already

      • Dual GPS

        • configured and functions

    • Four vs Six Batteries test

      • requires doing autotune

  • Nov 18th

    • no peggy stuff

    • Yuchen and Hardy autotuning

    • Could be used for Pegasus four vs six batteries?

      • don’t rush autotune with Pegasus

      • take more time to get drone in a good state before doing this

    • Last flight test Houston was not successfully completed

    • Do every axis on Houston before Pegasus

      • roll is most difficult

      • battery issues for autotune last week

      • we dont have enough Houston batteries

        • this will gate us

  • Nov 19th

    • Autonomy photo data acquisition day for Houston

    • no peggy

    • Hardy or Yuchen

  • Upcoming weekend dates

    • will plan as we get closer

    • Nov 25th

      • Open House will have most people busy?

      • Want drone at open house to show it?

      • open house is for incoming applicants

    • Nov 26th

    • Dec 2nd

    • Dec 3rd

    • No more weekends this term due to finals hitting

  • @Anthony Luo

  • Please start on the quizzes and then ask for stick time so we can get you up to speed!

  • Please come to flight tests to learn how we run them!

  • @Anthony Luo

  • in ok state

  • will make RFC for all changes eventually

  • @Megan Spee @Anthony Luo @Daniel Puratich @Georgia Westerlund

  • Anni will popoff tmrw on it

    • formally schedule this as a work session and get other people grinding together

  • Georgia popping off on it rn :pog:

  • Deadline Jan 15th

  • people will enjoy life over holidays

 

 

 

 

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