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"Tracking Device Lost" Using Aximmetry through the Mars VIVE

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Hello!

We're using the Aximmetry DE camera calibration tool with Mars VIVE. We seem to run into no issues with Lens calibration (we can even see the camera location move in real time, as we reposition it).

However, when we try to calibrate tracking, we keep getting the "The tracking device was lost."

We've tried plugging in directly with an ethernet port to both the Mars VIVE and directly to the router, switching up the base station locations and using from 2 to 4, changing out the ethernet cords, different lighting set ups.

We didn't run into this issue in the initial location we set up in. However, when we moved locations, we began getting this issue. The only differences would be the second location has a slightly larger space- the environment is the only variable that has changed.

Are there any environmental factors we should keep in mind when using either the Mars VIVE system or Aximmetry?

pyramideproductions

A screenshot of our issue. We moved everything back to the original room, and changed the base station channels, still getting the same issue.

Eifert@Aximmetry

Hi,

Please make sure, that you run the newest firmware version (2.05.999.5):

1. Open the setting menu

2. Under the marked area you can see the Version of your Mars.

If your software version is older than 2.05.999.5, please make sure to update your system.

You can do it by clicking on the 'Check update' button, or by manually updating it:

https://www.vive.com/us/support/camtrack/category_howto/manually-updating-the-mars-firmware.html

Warmest regards,

pyramideproductions

All the firmware is up to date. We re-downloaded and reinstalled all the programs.

voxel_zui

facing exact same problem, aximmetry calibrate tracking tool seems messing up Mars free-D input.

Everything with free-D was alright until calibrate tracking then Mars free-D no longer works on aximmetry anymore.

Eifert@Aximmetry

Hi,

When you see the "The tracking device was lost", it is likely that tracking wasn't working from the start. And you never had the tracking working in Aximmetry. Sadly in this case "The tracking device was lost" text can be quite misleading and we are working on a solution to this. Also note, that you can calibrate lens without tracking.

We apologize for any inconvenience this issue may have caused.

When setting up Vive Mars FreeD make sure the followings:

FreeD is turned on in Vive Mars. Got to Network:

Then go to Camera tracking protocols:

Then turn on FreeD:

Make sure the IP address points to your computer's IP:

In Aximmetry Free-D set the UDP port to the same as in Vive Mars the Port:

Set the Camera ID to your Vive Rover's ID:

Then before running the calibration, choose the Free-D in the Tracking Device:

When not using genlock, set the Data rate to the same as the Synchronisation frequency (FPS) in Vive Mars's Settings:

You can see if Vive Mars is Genlocked or not here. In this case, it is not genlocked:

If you are using genlock, then set the Data rate to the same as the genlock.

If you are still getting the "The tracking device was lost" message. Then please check in Aximmetry Composer if you get any tracking data with the following setup in the Flow Editor:

Warmest regards,

pyramideproductions

Setting the Camera ID to the Rover ID seems to have worked and solved the issue.

The "tracking device was lost" message appearing so late is very confusing and had us troubleshooting the wrong issue. In no other place did we find the instructions to have the Camera ID set to the Rover ID.

"Tracking Device Lost" Using Aximmetry through the Mars VIVE

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