Pixhawk 5x, Firmware 1.13.3 Crashed when Landing during RTL

PX4 Autopilot
1

Hello Everyone,

A couple of weeks ago a drone which was made by us using Pixhawk 5x FC and running on Firmware 1.13.3. Crashed when performing RTL.

The drone was sent on a survey mission at 60m altitude and 5m/s speed. The wind conditions became unfavorable after sending it on a mission so within a minute after its takeoff. We sent to the FC RTL command.

After the drone had reached the home location and began its decent at approximately 30m altitude the FC assumed that landing was detected and gave the command of 0 throttle. Time stamp (16:24.84)

We are trying to understand if this is hardware subcomponent level damage that has cause this or if is at bug of the latest firmware 1.13.3.

Kindly find below the link to the data of log from pix4.review.

https://review.px4.io/plot_app?log=822f04ea-b52e-4efb-95ed-4f18dbbe72e4.

Any and all help would be appreciated to help us diagnose what was the root cause.

2

Hi there,

I’m sorry for your crash.

Have figured out why it happened? Was it hardware or firmware issue?

Thanks

3

Hi,
Px4 v13.3 is a highly stable version and well tested with many added features including ROS1 capability.This version is the next best to Px4 v1.12.3 stable.
The next Px4 version which is currently highly stable is Px4 v1.15.3 after multiple tests with ROS2 integration.

Regarding your crash analysis, did you use distance sensor on the drone. This can malfunction and create such a thrust movement. What is the manufacturer or model of the distance sensor

4

Sorry got your crash. Keen to know what was your final findings.

Looking forward to hear from you.