Hello copter heads
It will be helpful if some can read my flying log & help me identify any problems with the system.
I was flying the drone with no problem but suddenly the drone experienced something which caused the drone to flip & fall on its back.
Will really apricate for the inputs are I will help me improve the system.
https://drive.google.com/drive/folders/112QYuxRdfSEGwmqJmyRnz9QuZv5gY7Sz?usp=sharing
Since all four motor’s command when to full, but the current dropped off to nothing I would say you had some kind of power failure. Check the power leads between the voltage/current sensor (because you never lost data, and the FC kept running) and your ESC or PDB. It’s all four motors so I would look at something that would be a common point for all motors. Are you using a 4-in-1 ESC, if so the power wire to the ESC. If you’re using individual ESCs then check whatever you’re using for power distribution.
Thanks for your inputs
I have just started getting into the quad copter world
Yes i am using a 4in1 ESC but before this crash i had the drone out for more than 5 flights in which this type sudden voltage drop was not observed.
Its weird and i had never experienced it,i am bit confused as well. Please guide me for this situation
Observation:
One more thing i observed with a other copter is that while i was flying yesterday the drone flew for more than 20 mins landed it and when i changed the battery and was hovering it suddenly started descending fell down and came back up this happened in pattern which i also have no clue of.
The issue I first looked at is a mechanical issue that caused your ESC to lose power. Check all the wiring and connections between your flight controller’s power brick and the ESC. Look at the ESC mounting, make sure it’s not free to move. Make sure the capacitor is secure and it’s properly soldered on (if your ESC has one)
This could be lots of things. It might be related, to the first issue. I’d need to see the .bin file from the flight to give any suggestions.
I am doing that as instructed and will share the findings for the same.
1.495_log.bin - Google Drive
2.496_log.bin - Google Drive
3.497_log.bin - Google Drive
Find the LOG for the flight in which i observed that up & down Moment
Thanks for the Help.
There are some very unusual current spikes, and a motor that’s going to full power. Check motor 1 (SERVO2 in this install). Again, look at the wiring. Make sure the prop is secure and tight.
This quad is still all on default tuning, so you need to work on getting it tuned before chasing too many parameter issues.
Consider looking up the Methodic Configurator.
Done i have pinned it will look at it
Does heat play an important role while doing sensor calibration right?
The Methodic configurator includes the procedure for doing the IMU temperature calibration. For some flight controllers this can make a big leap in improving the performance of the system. This only needs to be done once.
Compass calibration isn’t temperature sensitive but you should be outside, with GPS position.
hello Allister
I have done the drone testing with PID please find the Logs.
If these logs are good i will keep these as my bench mark for my future projects thanks.
I have a cube orange and F55A ESC setup with Air gear motors i had one question why doesn’t the Motor work when i enable the Dshot150 Option in the ESC Calibration Window i cant do any motor test as well ESC Calibrations.
And if i calibrate it on normal setting i will not be able to use the Dshot
Thanks for all the guidance provided helps a lot
I’m not going to look at all of those logs. I only looked at 15-58-35.
There is still a lot of noise in the motor outputs.
I think the filter could be adjusted but I couldn’t see data in the log I looked at. Set INS_RAW_LOG_OPT,9 and do a flight.
At a minimum set the vertical acceleration controller gains properly from hover thrust. They are at default.
PSC_ACCZ_I
PSC_ACCZ_P
Hello Allister
Thanks for all the feedbacks that you have given to me
Some things related to the drone as well the weather i am flying it at
1.The CG of the drone is not completely at the centre it has some extra grams at the back.
2.I have a custom frame with round arm rods which are fastened with C clamps
3.The area where i fly usually has high winds and the winds are omni directional.
Auto tune was done in such a condition.
4.The Flight controller is directly mounted on the bottom plate.
5.The Gps i directly above the Flight controller
These are some critical points i guess with the drone make and build.
I am sorry but this noise is created directly on the Flight controller or 4in1 ESC.
Will be conducting flight tomorrow will share them.
Thanks for the help & guidance with this project of mine.
Edit:
One major thing is that the drone flys smoothly without any visual disturbances in heavy wind conditions as well Good take off and good landing as well without any yawing
Hello allister
As you had suggested adding the Log in which i have enabled INS_RAW_LOG_OPT,9.
I have also added some points below regarding the build and flying of the drone.
Thanks for the help
Hello Allister
Will do this and get back to you with the results.
