2023-12-05 AEAC 2024 Sync
Daniel Puratich
Arunav Munjal
Megan Spee
Introduction
@Daniel Puratich
@Darwin Clark
@Alison Thompson
@Anthony Luo
@Nathan Green
@Arjun Mandair
@Jerry Tian
@Mena Azab (Deactivated)
@Nathan Green
@Conall Kingshott
@Megan Spee
@Georgia Westerlund
@Yuchen Lin @Nathan Green
Completed auto-tune all axis
four batteries
logs in thread, should be linked in debrief
we didn't fly much after autotune so minimal changes
@Anthony Luo to analyze
@Daniel Puratich
Next deadline is phase one paper
No more AEAC syncs for this term!
Systems
@Conall Kingshott @Nathan Green @Jonathan Di Giorgio @Mena Azab (Deactivated)
Slight redesign on clamping blocks
had one cracked a little, not major
Wires rerouted to give extra length
very cool!
No other updates
@Alison Thompson @Evan Janakievski @Georgia Westerlund
No real updates here
getting inside layout figured out and waiting for panels to be cut
may need to follow up with Graeme on this
@Andy Zhang @Conall Kingshott @Alison Thompson
CA glue in I think
Waiting to glue onto clips.
Gonna do that after clamping block mods.
@Smile Khatri @Mena Azab (Deactivated)
Clevis pin
funny looking bendy one
they don’t make smaller ones with same diameter
won’t accomplish goal of less play/give by using a smaller one, would make it worse bc 3d printed part
could do a reccess in dovetail?
might not be worth effort
Cotter pin
the straight one with the hole in it
This is already the smallest one they have on
@Nathan Green @Georgia Westerlund @Megan Spee
No updates.
@Nathan Green @Alison Thompson
LiDAR mount exists for Houston and is ready to go
needs to be test fit but should be fine
M2.5 bolt to drone, M4 on LiDAR
@Tom Chiu
On hold till after exams
@Michael Botros @Mena Azab (Deactivated) @Nolan Haines
No updates
@Michael Botros @Mena Azab (Deactivated) @Nolan Haines @Anthony Zhelnakov
Will be worked on after exams.
@Mena Azab (Deactivated)
No updates other than rerouting the ESC wires.
Ordered and received more 16awg.
@Nathan Green @Conall Kingshott
Worried about the M4 solution
M4 was originally decided for the motor mount bolts
It’s tough to prove board will be okay without testing in place
@Neel Patel @Parker Lawrence-Valeriani
Switch XT30 to solder pads for more clearance
3mm clearance on back of board
Do two boards
One the M4 for motor mounts
Other with M3s
Then mount with heat-sets
Hardware: @Farris Matar @Daniel Puratich @Anthony Luo
Firmware: @Derek Tang @Anthony Luo
Three boards assembled
Two have been tested thus far
There is a test plan in discord from Anni
early next term possibly flying it
Plan
Gemini to Gemini
easier to test in this configuration
Gemini to two diversity receiver
more common online
Getting a lot of radios on drone
@Arjun Mandair @Conall Kingshott @Nathan Green
Currently working on mounting electrical components
Reminder if anything has changed on EE side to update: Tracking Antenna Status & Mechanical/Electrical Components
Currently using the following servos:
Will need a second yaw servo since current yaw servo gearbox is discontinued on ServoCity
Options:
We could use a Servo Hub: https://www.servocity.com/servo-hubs/
aka direct drive
torque calculations for correct speed
@Conall Kingshott Mentioned balancing issues in the Discord today?
We could use a gearbox: https://www.servocity.com/servo-gearboxes/
Not sure which servo to choose. Depends on decision: https://www.servocity.com/servos-accessories/
May Need a programmer depending on decision as well: https://www.servocity.com/3102-series-dual-mode-servo-programmer-1-1/
Pitch: https://www.servocity.com/2000-series-dual-mode-servo-25-2/
Will possibly need a programmer for continuous: https://www.servocity.com/3102-series-dual-mode-servo-programmer-1-1/
not needed if we stick with 105 deg
May need continuous with current pitch servo: Involute spur gear generator and simulator
What angle range should we plan for?
Currently 105 degrees.
Should be fine, because we have yaw anything more than 90 is useless
Alternative: https://www.servocity.com/2000-series-5-turn-dual-mode-servo-25-2-torque/
@Nolan Haines @Hardy Yu @Michael Botros
Schematic is basically done
in process of being reviewed
lots of points in it currently
@Yuchen Lin @Stanley Tang @Ayoung Eun @Aryan Kashem
IMU sensor fusion complete - track antenna rotation + know which direction is North
Is able to find north with +/- 10 Degrees inaccuracy
Used new library: https://github.com/drcpattison/BMX160
Configured XBee to communicate
Still need to connect XBee with Arduino
Should prepare to use mini pix or COTS solutions
something with just integration time
fairly isolated task
need to start on backup plan
currently it is mechanically working 3d printed in bay
@Alex Yang @Amy Hu @Mihir Gupta
No updates. @R D (Deactivated) unsure of status.
@Tong Zhang @Amy Hu @Mihir Gupta @Nathan Green
We hooked up the Jetson with the ZeroTier network and we can read drone telemetry from the Jetson.
We are working towards sending images to the drone which we will finish in the next term. Right now we are profiling different image encodings to see which is the best one to use.
We will be using a lot of data for this?
6 gb of data is 30 mins of 1 img per sec
just pngs right now
looking into different encoding specs
change code to only transmit images when landing pad is spotted
could reduce usage time a lot
system is not setup for that right now
could be on a communication between pixhawk and RPi to tell it when to start looking for pads
the RPi can already read MAVLINK telemetry
simple solutions plz
excessively transmitting to gnd is kinda hard …
this is possible
@Arunav Munjal @Amy Hu
Task 2 code working on mission planner and realflight simulator
USB test had some issues so will be looking into fixing that
connect usb from ground station to pixhawk directly
Define new “Location” class in common repository first
infra thing
Admin
@Hardy Yu @Yuchen Lin @Anthony Luo @Daniel Puratich
Remaining Testing Goals before end of term
Ground Testing
Gemini
Video over LTE
Calibrate Optical Flow
Monster mount offsets
for rangefinder and Optical Flow
Tracking Antenna
Flight Testing
Pegasus Four Battery Endurance
Autotune required
Pegasus Six Battery Endurance
We do not have enough nice batteries for this
Save more testing plans for next term?
@Georgia Westerlund
Official Deadline: mid January (see gcal)
Please ping leads if you do not have editing permissions
Do not copy paste AI into AEAC paper
@Daniel Puratich trolled this morning
mfw initiating the super long AI conversations go brrr