@Alex-Kushleyev said in M0173 with 4 AR0144 Tracking cameras:

one

Any info about the dual lepton, it does seem to be documented that it works, please let me know if it doesnt.

@colombe-ai I'm not sure how much we're going to be able to help to get this going but I'd start with that magnetometer. Put an oscilloscope in the lines and see if you see any activity.

@Vinny Thanks for the info,

Just to be clear, I am not looking for the PCB design schematics, just a symbol per board showing all the inputs and outputs to the board as a whole which then could be used in a system wiring diagram. If not I can just go ahead and make them myself, as all the info for it is on your docs

@Colby-Howell You can save camera data onboard using voxl-logger, but it will take up a lot of storage very quickly and the voxl2 has < 64gb so be careful with that. If you're not trying to save raw frames and are okay with compression & artifacts you can stream it to a ground computer with voxl-streamer and save it there

For connecting to the drone the easiest (especially cause you don't have a ground radio) is wifi, you can just connect your drone to a somewhat powerful router, set a static IP and ssh in.

For autonomous navigation, the best way in my opinion is to talk to voxl-px4 through the uxrce-dds bridge (implemented on the voxl2 as voxl-microdds-agent) https://docs.px4.io/main/en/middleware/uxrce_dds

@zauberflote1 We are using our own custom airframe. Our SDKs are 1.6.0 beta and 1.4.5. However, I also just spoke with a colleague who owns a Starling 2, and he confirmed our findings.

@magnetocircuit Yes, this is supported. In the config file for px4 /etc/modalai/voxl-px4.conf set ESC=VOXL2_IO_PWM_ESC.

@Aaron-Porter Hello there,

voxl-evaluate-vins is currently not used by the Autonomy team @ ModalAI, we opted for our new benchmark solution, a bit more consistent in terms of statistical rigor and better integration with voxl-portal. Still, when replaying logs for VINS, it is imperative that one replays them using the ION pipes, as our VINS solution is optimized for cl_mem ptrs. Note that when replaying ION pipes, it is recommend to stop camera-server before replaying -- as clean killing ION pipes via the voxl-replay args is currently being optimized. This should resolve the common segfaults experienced during the replay/benchmark operation itself.

https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-benchmark-vio

Finally, I would recommend updating your VINS to the latest available tag on Gitlab

@sja123 No, unfortunately, we do not currently support boot from SD card.

Hi @Pelle-Bredegg-Hermansen
I'll be happy to review your design.

I'll email you now to start the exchange.
Thanks!

Hi there, I would highly recommend upgrading to the latest SDK 1.6.2.

Q1: For voxl-vision-hub, openvins is just another [abstracted] VIO client, using the same MPA interface as QVIO. Thus, should work the same as QVIO.
Q2: There are no outstanding buffer conflicts between the 2 inputs in that SDK version. Though best to update to 1.6.2 as there have been numerous MPA improvements.

Q3: MAYBE ON GROUND, POSITION LOCK? is reporting that the barometer is reporting <1m and OVINS > 1m (-1 in NED space). It appears OVINS had a blow up, has recovered with a new origin in the local frame. Your output says it must have reseted in the ai/flying and hence the new local origin is above your landing point (fixed frame). Depending how you have PX4's EKF setup could lead to issues like the landing detector not working, or position error when running missions, hence why it's reported as a warning. Your output says it's at 0,0,-15 indicating OVINS restarted at ~15m up, but the PX4 baro says it's at 0. If outdoors, I recommend setting EKF2_HGT_REF = baro, if indoors, you'll need to reconcile a origin offset if VIO resets midair (qvio would require this as well) if using vio data directly waypoint manager (i.e. offboard waypoint mode or custom nav code)

Going forward if staying with 1.4.x,

edit /etc/modalai/voxl-open-vins-server.conf and change:
"en_vio_always_on": true, ssh into the drone and run voxl-vision-hub --debug_fixed_frame --debug_tag_cam --debug_odometry to compare values and see if there is a error in calculation possibly causing vision-hub to restart. move the drone around by hand, point it at a tag as needed and monitor the output from vision-hub. Should tell you where a possible conflict arises.