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IWR1443: Zone Occupancy Detection

user5337378
Intellectual 260 points
Part Number: IWR1443
Other Parts Discussed in Thread: IWR6843

Hello team,

I have some questions. I hope you can help me.

here are my questions.

1. I am using the demo Zone Occupancy Detection. I find the demo can't show the point reflected by flags. how could I do to get the point cloud of a  whole person? what about the cfg or the location of the device? 

2. could iwr6843 get higher quality point clouds than iwr1443?

3. Why is the program always stuck when I run the mmwave demo visualizer online?

4.  in the experiments of Zone Occupancy Detection I find that the point cloud of people is more whole than other angles then the people go at 30.could you tell me why is it?

Looking forward to your reply.

Best Regards,
zhen

  • 0
    TI__Mastermind 23725 points

    hello,

    For

    #1) Please check the detection thresholds set via the cfg file.  Explanation of these parameters is provided in the SDK user's guide.

    #2) Both Devices work on the same FMCW radar principle and does not necessarily differ in fundamental detection capabilities. Having said that they use different frequency spectrum and differ in post processing capabilities.  The results for Out of Box demos should show identical results for similar configuration settings.

    #3) Please provide more details on where exactly the issue occurs.

    #4) Point cloud is based on reflections received back by the device. In general the strength of reflection is strongest at the bore sight (right in front of antenna)  and  as the objects move to side the reflections strengths would fall resulting in less points. 

    Thank you,

    Vaibhav

  • 0 in reply to Vaibhav Mahimkar
    Intellectual 260 points

    hello

    why you put the device at 1.5m high? how about other height?
    could I control the angle of the device tx?

    thanks

  • 0 in reply to user5337378
    TI__Mastermind 30405 points

    Hello,

    You can select any mounting height as long as your area of interest is covered in the Field of view of the sensor. The demo user guide has the following note in the Physical Setup section:

    The EVM should be positioned with antenna oriented on the top side (closest to the ceiling) and facing out to the area of interest.


    By controlling the angle of device TX, I assume you are referring to TX beam forming. If so, the IWR1443 device does not support TX beam forming.

    Thanks

    -Nitin