Thank you for explaining this. We will review, test and get back to you.
Thanks again,
RDJ
Thank you for explaining this. We will review, test and get back to you.
Thanks again,
RDJ
@Moderator Yes, as per ModalAI documentation, is says putting the camera in a vertical plane is ideal for indoor only operations.
We modified camera t wrt body from 45 to 0 for the vertical placement of camera.
UAV had identical unstable flight before this value and camera position was modified.
@Alex-Kushleyev was the issue referenced at the start of this post from March ever resolved? It seems they had the same issues with a Starling UAV.
Hello Alex,
Any suggestions?
Thanks,
RDJ
@Moderator We have followed the QVIO trouble shooting steps.
I will post a screenshot of voxl-logger --preset_odometry and a short video clip of the QVIO overlay.
-Ryan
Good morning team,
https://forum.modalai.com/topic/3237/starling-gone-rogue-uncontrollable-in-position-flight-mode/8
We are experiencing the same issues when attempting to fly in POSITION mode.
UAV flies flawlessly in MANUAL mode, good vibes good gyros.
Indoor flight, tracking camera mounted vertically, not 45deg.
All cameras successfully calibrated.
QVIO Overlay in Web Portal is between 80-100% when armed on the deck.
Instantly drops to 6-13% on takeoff, with same number of points in QVIO Overlay.
UAV climbs, uncontrollably in POSTION and ALTITUDE modes, even after throttle reduced to 0.
Any help would be appreciated.
@Alex-Kushleyev Thanks Alex, We will test it out. In the meantime my team will be sending the first FPV 4n1 ESC back, so you can investigate onsite.
Thank you,
RDJ
@Alex-Kushleyev I agree, what do you think the next troubleshooting step is for this issue?
From the GCS, executed "take-off" command in "Position Mode" with props off. Motors smoothly increase. I "hand-flew" it up to 1m and UAV was adjusting for small movements correctly.
Executed "Land" and "hand-flew" it to the deck, landing detected and disarmed.
Throttle input is being "ignored" regardless of RC Channel input, same response (slow ramp up) when armed in any flight mode (Manual/Stab/Pos etc..) and throttle is increased, even when RC Channel is changed (1,2,3,4).
Motors respond correctly with pitch, yaw, and roll inputs.
PX4 FPV_RevBv4 params are uploaded, switched to 4S and put min/max RPM to 3000/40000.
@Alex-Kushleyev No actionable response from throttle.
We kept the custom ESC config for the 2203.5, and uploaded px4 FPV_RevB_v4.
Motors are more responsive in all channels, Throttle channel still conducts a "ramp up", but more aggresively when RC Tx input is applied.
Also, sinusodial value is 0 in FBV_RevB, I will change this to 1.
What effect does the aO,a1, and a2 (pwm_vs_rpm curve) have on overall throttle response for FPV 4n1 ESC? in the FPV_RevB the a0 value is -161.0826?
@Alex-Kushleyev I am going to upload FPV_REVB. unless you recommend another.
RDJ
@Alex-Kushleyev Good morning,
Started trouble shooting this issue again with no change.
Under 4s battery power, all motors respond well to motor test, using slider in QGC, min to full throttle in Actuator tab.
Still no response other than "slow ramp up" when throttle is increased on RC Tx.
RDJ
Thanks Alex, SYS_VEHICLE_RESP parameter is -0.40. With small incremental adjustments there was no change in UAV behavior. Changed the value to 0.40 with no change in behavior.
RDJ