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titleCard 2: Task 2

Test 1: Tuning

Procedure

Goals / Objectives

Knockoff Criteria

  1. Battery plugged in

  • Mission planner no pre-arm warning

  • make sure autotune is in one of the flight mode

  1. Bring the drone to the flightline

  • toggle safety switch

  1. Enable logging

  1. Take off the drone in Loiter

  • verify drone flight performance

  • Drone unstable

  • unable to establish VLOS

  • Timer threshold:

    • flight time exceeded 5 min.

    VBatt below safety threshold: 10V

    • QLAND immediately, disarm when landed.

    • Recover drone & gather state of batteries

    Lost link

    • Follow lost link procedures. Maintain vlos if possible.

    • Contact necessary local authorities.

  1. Engage Autotune

  • one axis at a time

  • Drone unstable

  • unable to establish VLOS

  • Timer threshold:

    • flight time exceeded 5 min.

    VBatt below safety threshold: 10V

    • QLAND immediately, disarm when landed.

    • Recover drone & gather state of batteries

    Lost link

    • Follow lost link procedures. Maintain vlos if possible.

    • Contact necessary local authorities.

  1. Switch Flight mode to Loiter to back to landing area

  • Drone unstable

  • unable to establish VLOS

  • Timer threshold:

    • flight time exceeded 5 min.

    VBatt below safety threshold: 10V

    • QLAND immediately, disarm when landed.

    • Recover drone & gather state of batteries

    Lost link

    • Follow lost link procedures. Maintain vlos if possible.

    • Contact necessary local authorities.

  1. Land the drone with autotune mode

  • to permanently save the PID value

  • Drone unstable

  • unable to establish VLOS

  • Timer threshold:

    • flight time exceeded 5 min.

    VBatt below safety threshold: 10V

    • QLAND immediately, disarm when landed.

    • Recover drone & gather state of batteries

    Lost link

    • Follow lost link procedures. Maintain vlos if possible.

    • Contact necessary local authorities.

  1. Disarm the drone

  • disarm the drone, Toggle safety switch

Expand
titleCard 3: Task 13

Test 1: Test Basic Obstacle Avoidance TODO

Procedure

Goals / Objectives

Knockoff Criteria

  1. Set waypoints

  • Create a simple path for the drone to follow.

 

  1. Run main obstacle avoidance script

  • Ensure no errors.

 

  1. Set up the obstacle in course

 

 

  1. Battery plugged in

  • Mission planner no pre-arm warning

  • make sure autotune AUTO is in one of the flight mode

  1. Bring the drone to the flightline

  • toggle safety switch

  1. Enable logging

  1. Take off the drone in Loiter

verify drone flight performance
  1. Arm the drone and set mode to AUTO

 

 

  1. Let drone start flying through waypoints in AUTO

 

  • Drone unstable

  • unable to establish VLOS

  • Timer threshold:

    • flight time exceeded 5 min.

    VBatt below safety threshold: 10V

    • QLAND immediately, disarm when landed.

    • Recover drone & gather state of batteries

    Lost link

    • Follow lost link procedures. Maintain vlos if possible.

    • Contact necessary local authorities.

  1. Engage Autotune

  • one axis at a time

  • Drone unstable

  • unable to establish VLOS

  • Timer threshold:

    • flight time exceeded 5 min.

    VBatt below safety threshold: 10V

    • QLAND immediately, disarm when landed.

    • Recover drone & gather state of batteries

    Lost link

    • Follow lost link procedures. Maintain vlos if possible.

    • Contact necessary local authorities.

  1. Switch Flight mode to Loiter to back to landing area

  • Drone unstable

  • unable to establish VLOS

  • Timer threshold:

    • flight time exceeded 5 min.

    VBatt below safety threshold: 10V

    • QLAND immediately, disarm when landed.

    • Recover drone & gather state of batteries

    Lost link

    • Follow lost link procedures. Maintain vlos if possible.

    • Contact necessary local authorities.

  1. Land the drone with autotune mode

  • to permanently save the PID value

  • Drone unstable

  • unable to establish VLOS

  • Timer threshold:

    • flight time exceeded 5 min.

    VBatt below safety threshold: 10V

    • QLAND immediately, disarm when landed.

    • Recover drone & gather state of batteries

    Lost link

  • Follow lost link procedures. Maintain vlos if possible.

  • Contact necessary local authorities.
    1. Wait for drone to approach the obstacle

    1. Ensure that drone stops and enters LOITER mode

    • Ensure the drone stops ~10m away from obstacle.

    • Ensure drone switches to LOITER mode upon detecting obstacle.

    If the drone does not stop within 10m of the person and obstacle:

    • The person holding the obstacle steps out of flight path immediately.

    • Pilot manually intervenes and skips to Step 13 (landing and disarming drone).

    1. Remove the obstacle from the flight path and ensure the drone reenters AUTO mode

    • Ensure the drone resumes its mission.

    • Ensure drone switches to AUTO mode upon obstacle removal.

    If drone does not resume to landing waypoint

    • Pilot manually takes over and proceeds to Step 13 (landing and disarming drone).

    1. Drone hovers over the 2nd waypoint (the landing waypoint)

    •  Ensure drone completes the mission.

     

    1. Pilot manually intervenes and lands drone

     

     

    1. Disarm the drone

    • disarm the drone, Toggle safety switch

    ...

    Explain what capacity you need, what needs to be mounted, etc.

    Necessary items:

    • Jetson

    • CV camera

    • < rfd900 >

    • etcRPI

    • Lidar

    Flight characteristics needed:

    • Flight speed

    • flight distance

    • max altitude

    • < etc >

    • stability

    Comms / Support needed:

    • Autonomous/repeatable missions

    • ability to hold location within +/- X meters

    • FPV Video from the drone?

    • etc….

    🫂 Mandatory Attendees

    This is a section for all attendees from your subteam which will be present for this flight test. (because they are testing their products, or otherwise)

    Name

    Phone #

    Sub-team

    Role

    Smile Khatri

    8076320853

    Mech

    Evan Janakievski

    206-247-2823

    Mech

    Yuchen Lin

    6474256385

    Hardy Yu

    Ashish Agrahari

    5195898378

    Auto

    Manasva Katyal

    2896985018

    EFS

    Andrew Shum

    6473836886

    Auto

    Testing obstacle avoidance

    Tong Zhang

    2897729826

    Auto

    Ben Lovegrove

    5195917981

    Mech

    ...

    Flightline Team

    ...

    Expand
    titleDay-of checklist
    • Batteries in safety bag

    • Equipment

      • Zip tie

      • duck tape

      • label maker

      • Type c cable

      • ELRS Gemini

      • Saleae Logic Analyzer

      • charged WARG laptop

      • spare bag for small electronics

      • controller box

        • two controller

        • battery tester

      • VTX box

    • execute

    Total 5 main system checked:

    • Power system(battery and connection)

    • Propulsion system(motor and propeller)

    • Controller system(Control links and ground station system)

    • Sensory system(sensors)

    • Video system (VTX)


    • Debrief

    • clean / store equipment if necessary

    ⏲️ Flight Test Timeline

    ...

    Date/Time

    Action

    Notes

    lunch time ish

    Briefing @ WARG Bay

     

    Arrival at Flight Test Location

     

    Experiment with tracking antenna

     

     

    Bring equipment to flightline

     

    Test1 card 1

    Hardy Yu manually track the drone

    RTL because RC failsafe

    Configure direct binding phrase to use normal controller elrs instead of gemini

     

    Test 1 card 1

     Nathan Green

    Test 2 card 1 practice #1

     Nathan Green

     

     Test 2 card 1 practice #2

     Nathan Green

     

     switch battery

     

    Test 2 card 1 practice #3

    Nathan Green

    Test 2 card 1 practice #4

    Nathan Green

    Test 2 card 1 practice #5

    Yuchen Lin

    Presentation Photos

    Start 4:30pm

    Debrief10:00

    arrive bay

    12:30

    setup test and get ready to go

    12:40 ~1:10

    wait for the weather

    1:10

    first take off

    1:20

    second takeoff

    1:30

    Fixed the prop

    1:40

    return to service flight

    ...

    💻 DEBRIEF

    Flight test debrief report

    Before Card 1:

    Before departure

    Yuchen Lin didn’t logistic going to flight test → next time book the car beforehand + long weekend machine shop does not open

    Yuchen Lin Hardy Yu Testing with huston → connected to mission planner and able to forward the message(test 2 times)

    • first one does not flash the latest code

    • second one see tracking antenna working as expected

    After departure

    pre-flight tracking antenna testing: (no code change)

    Keep rotating without stop and does not work

    After adjust to the north keep rotating clockwise

    does not help after adding delay

     

    • Please upload the picture to media digest!!!

      • updated thanks a lot

    • Weather is a huge thing

      • Glad doesn’t risk and fly in heavy rain

      • Next time plan ahead of time

    • A prop just break during transportation

      • suspect overtighten issue

      • replace one props

    Card 1 Test 1

    Info

    Flight planning

    • conduct half task 1 goal (1.5 lap)Take-off, full stick deflection, and engage autotune

    Flight test card requirements/objectives Performance

    Comp sim

    Panel
    bgColor#E3FCEF

    Control performance & payload situation

    • Four payload in the cabin + alien key

    • Hardy Yu manually track the drone

    • Control feels OK to Yuchen Lin in althold and loiter

    Note

    Identified issue

    • Compass variance issue

    • place the drone backward and cause sharp turningAutotune does not start (drifting)

    • wait for the weather to be clear

      • next time need better planning

    Warning

    Issue need to be RCA

    •  Gemini not working (performance worse than without gemini) → fully lost link

      • Link quality got worst after first lap

      • possible thermal issue

      • flew lost link 750 meter

      • previously tested with the same gemini board with smaller antenna with 3km

      • gemini is not hot at all

      • look at power used(power limit)

    •  

     

    Card 1 Test 1 retry 12

    Info

    Flight planning

    • conduct half task 1 goal (1.5 lap)Take-off, full stick deflection, and engage autotune

    Flight test card requirements/objectives Performance

    • Check tuning in all three mode and compass variable at full throttle.

    Panel
    bgColor#E3FCEF

    Control performance & payload situation

    • Four payload in the cabin

    • Current draw pretty good at calm weather

    • half of task 1 5000mah

    Note

    Identified issue

    • aggressive takeoff

    • Almost all the time ekf yellowControl feels OK to Hardy Yu , report drifting a lot issue in loiter (maybe setting and stick center)

    Note

    Identified issue

    • When attempted landing, one prop break and fly out

      • result: instable in landing and crashed

      • no damage to the system

    • The other two prop are having crack

    • Conclusion replace three props in total

    Warning

    Issue need to be RCA

    •  

     Card 2 Test 1

    return to service

    Info

    Flight planning

    • Test the auto mission task 2 pathing and training pilot for landinggentle takeoff and control check

    Flight test card requirements/objectives Performance

    • During flight time upload the mission to pixhawk

    • Arm in auto and complete the mission

    • Pilot navigate through and land on the pad with fpv goggle

    Panel
    bgColor#E3FCEF

    Control performance & payload situation

    • Four payload in the cabin

    • GSO and pilot get familiar with callout (Better callout procedure for less than 1 meter → with range finder) practice next week

    • cannot really callout the height sub 1 meter

    • easy to land on the paved ground

    • all the landing are smooth and within timeframe

    • descent first

    Note

    Identified issue

    • Daniel Puratich callout at last waypoint based on height not ardupilot

    • Full path does not show outside of planning windowControl feels OK to Yuchen Lin in loiter

    Note

    Identified issue

    • Two of the regular nuts for props are loosen in the flight are cause thrust lost

      • result leads to crash

    Warning

    Issue need to be RCA

    •  

     

    Overall performance and Lessons learned

    Outcomes

    • confident in flight characteristics of the drone and electrical robsutness

      • spline waypoints looked good during flight but looks poor on mission plannre

    • low confidence in custom rf links and tracking antenna

      • not using tracking antenna for comp → cc Daniel Puratich to bringup at AEAC

      • Gemini board was low link quality

        • try another gemini board and see if it works

    • Nathan Green apply new mag fit data based on today’s data

    Check weather before comp.

    Flightline tasks:
    bring vtx tower, drone(path uploaded, battery in , shourds on), controller and the monitor

    Before takeoff

    Daniel Puratich conduct the pre takeoff checklist

    manually toggle safety switch

    confirm take off flight mode

    ...

    Tip

    Did not risk any valuable component and don’t have any issue with the rest of the system

    none of the other system got damaged

    Warning

    Haven’t finish any objective for the day

    need seperate session for pilot training

    flying props are dangerous

    Need to respec the props

    Evan Janakievski will be available on 27th → next pilot training session time

    Update on July 12th:

    Smile Khatri Point out during July 6th flight test, The propeller normally come with a black ring at the bottom of the prop. The reason for the prop failure is that the ring was not installed, and when the motor spins, stress accumulates across the injection moulding edge. [need mech clarification]


    Smile Khatri Can you add a photo of the black ring? thanks

    The second lesson we learned is that Loctile is not suitable for a prop and might damage the prop. Also, it takes a long time to solidify, so if we use Loctile during flight test, it does not have any effect.