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Original question:

IWR6843AOPEVM: Vital Signs With People Tracking

IWR6843AOPEVM: About people tracking on vital sign demo

yui.uehara
Prodigy 60 points
Part Number: IWR6843AOPEVM


Hi,

I would like to ask about position information.

・Where are the posX, posY, and posZ in the Target List TLV based on? Where is (0,0,0)?

・Also, is it correct to recognize that the position data indicates the position of a person's chest?

・Is it possible to obtain angle and distance information between the sensor and the person?

[Environment]

▼Sample App Version

rader-toolbox 1.30.01.03 mmWave Industrial Visualizer

「Vital Signs With People Tracking」

▼OS Version

Windows 10Pro 22H2

▼ Driver version information recognized by Windows side

XDS110 Class Application/User UART version 2.0.0.2

XDS110 Class Auxiliary Data Port Version 2.0.0.2

Best Regards,

  • 0
    TI__Genius 12200 points

    Hi,

    To get the tracker information(posX, posY..) , you need to decode the TLV with TL type 1010 and 1011

    Tracker position corresponds to the location where maximum points are detected for the track.

    This information is provided to the vital signs chain which locates the centroid of the object being tracked. Typically, when a person is seated infront of the sensor, centroid of the person is the chest area which is used by the sensor to determine the heart rate and breathing rate

    The tracker TLV will contain information about the location of the person, you can derive the angle and distance by converting the XYZ co-ordinates into r theta format

    Regards

  • 0 in reply to Abhishek Karkisaval
    Prodigy 60 points

    Thank you for your response.

    Is the origin (0,0,0) the position of the sensor?
    Especially for the Z-axis,
    which is the height information from the ground that takes into account the installation height of the sensor
    or the height information based on the installation height of the sensor?

    >Tracker position corresponds to the location where maximum points are detected for the track.
    What does maximum points mean? Also, how do you get?

    Best Regards,

  • 0 in reply to yui.uehara
    TI__Genius 12200 points

    Yes, (0, 0, 0)  is the position of the sensor. 

    Sensor detects the objects as the points. Points are associated to form a track. For example, an object to be tracked can have 2/3/4 associated points based on the .cfg

    Regards,