Calibrate IMU RB5

[vjuliani]

Hi,

Is there a way to calibrate RB5 IMU sensors without QGC? Or using QGC is the only way?

I am constantly having calibration problems after a few flights, such as "High Accelerometer Bias". When it happens, I try to calibrate accelerometer again, but after doing that, the calibration gets inconsistent, sometimes the drone works fine, sometimes it loses control mid flight.

Also, it usually happens after the drone stayed in the sun for 10-15 minutes. Is it possible to be a temperature problem?

This is the voxl-version:

I can't use IMU server to do a temperature and IMU calibration because RB5 has only imu_px4, right? So, using QGC is the only way to calibrate imu_px4?

[Moderator]

@vjuliani Your build is really old, can you please update the software? https://docs.modalai.com/Qualcomm-Flight-RB5-system-image/

[vjuliani]

@Moderator, thanks for your reply.

We can update the software.

Do you think the new software version should solve the issue?

[vjuliani]

@Moderator

Does this new build also updates the firmware version of the Quectel Board?

Currently we are using this version:

Do you recommend a update on this?

[tom]

@vjuliani We don't currently touch the firmware on the Quectel board

[vjuliani]

Ok, thanks @tom.

We didn't upgrade the build yet.

In relation to the problem, we did some flights and experienced it again.

Below are the flight logs, you can use: https://logs.px4.io/upload to visualize them.:

https://www.mediafire.com/folder/74yd2f8tdnjqq/RB5_flight_logs

Can you find any indicators of the problem in the logs, such as high temperature, for example?

[vjuliani]

In the flight with problem, we performed sensors calibrations using QGC.

The flight with no problem happened a couple of hours after the first flight with problem and no calibration was performed.

[tom]

@vjuliani Can you open a new thread for this issue so our whole team gets eyes on it?

[vjuliani]

Yes, @tom.

Thank you