WHEN I START UP MY BLUEROV2, I GET THIS ALERT MESSAGE ON THE QGROUNDCONTROL.
I WOULD LIKE TO KNOW WHAT IT MEANS AND HOW TO FIX IT?
IMAGE ATTACHED.
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Hi @Rov1 -
Do you mean the EKF3 IMU force reset message?
This may mean your calibration of motion sensors isn’t particularly good, and on startup the EKF (the process that is fusing IMU data) has to reset itself to figure out where things are. Try recalibrating your accelerometer and compass, and if you go o the vehicle setup page in BlueOS you can also calibrate your gyroscope which may help as well.
You also seem to be running quite an old version of ArduSub. Have you upgraded to BlueOS?
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Hello Rov1 and Tony,
On our two Blue ROVs (Pixhawk and Navigator), this is the only error we’ve never been able to resolve; it appears regularly regardless of the dive conditions.
We’ve performed multiple calibrations of all sensors, and this has never resolved this issue.
According to some users, this is due to the processor lacking the power to perform the calculations related to the Kalmann filter (EKF).
Kind regards. Laurent
Hi @FlyingManta
I can assure you, the message is not related to processing power whatsoever! Have you tried recalibrating your motion sensors?