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IWR6843ISK-ODS: [ITB4.2.0 - 3D people counting] How to run 3D people counting demo with ISK6843ISK-ODS(ES2.0) mounted on ceiling.

Big Fields
Intellectual 475 points
Part Number: IWR6843ISK-ODS

Hello.

I want to run 3D people counting demo in ITB 4.2.0 with IWR6843ISK-ODS mounted not on the wall but on the ceiling.

I know you would recommend me to mount it on the wall, but if I need to mount it on the ceiling, what is the best and easiest way to do so?

I did the following:

- set 90 degree as elevation tilt in sensorPosition command in cfg file.

- expand boundaryBox and staticBoundaryBox so that the target person will no doubt be inside the covering area.

Despite the attempts above, I couldn't tell where the target person is from point cloud data.

Also, if there is an appropriate lab for people counting using IWR6843ISK-ODS(ES2.0) mounted on the ceiling, could you tell me which one it is?

Best regards,

Fields

  • 0
    TI__Mastermind 28055 points

    Hi Fields,

    While the current firmware is intended for wall mount, it can be pressed into ceiling use. My recommendation for this would be to flip the Y and Z axis, then treat everything else normally. I have added this to test it at line 586 in gui_main.py:

    Please note that the software works as follows:

    1. Generate Range-Azimuth heatmap
    2. Run CFAR on range azimuth heatmap to generate point cloud
    3. For each detected point, calculate elevation and doppler

    This means that if two people occupy the same range and azimuth bins, they will fight for points as we do not resolve multiple points in elevation. This will be detrimental to ceiling mount performance. We are aware of this, and aware that there is a need for a solution here.

    Regards,

    Justin