PixRacer / Collision Prevention

PX4 Autopilot
1

Hi there,

Currently, I’m using the collision prevention in PX4 1.13.3 with mRo PixRacer Pro. But some wired flight behavior occurred. The distance sensor didn’t detect anythings and we just push fully on my RC and let the drone fly forward. However, the drone just move and stop alternatively. I have checked the log files, the x direction velocity is actually intermittently instead of smoothly forward.

Is any solutions to solve it ?

distance sensor
distance sensor1165×505 14.1 KB

manual
manual1177×514 57.2 KB

velocity
velocity1221×502 75.5 KB

Besides, our GPS seen wired as well

magnetic
magnetic1162×510 45 KB

GPS
GPS1189×505 82.3 KB

Any suggestion is appreciated.

Thanks.

2

The sensor you are using its a little bit out of date… its an analog sensor.
Better you look for a different one… like Lightware lidars or teraranger.
Aside the log better also see a video about the drone behavior during the detection.
Usually that sonar was used as landing sensor and not for object detection.

3

But, I’m sure that the sonar sensor didn’t detect to any obstacle because I setup nothing in front of the drone in the specifically setup environment.

4

okay, you must do the proper setup for the avoidance, but as I’ve previously said you can use that sensor for landing