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IWR6843AOP: Error on Heart Rate

TI-CSC
Genius 14110 points
Part Number: IWR6843AOP
Other Parts Discussed in Thread: MMWAVEICBOOST, IWR6843ISK

Tool/software:

Hello E2E Experts,

Good day.

I need help with the IWR6843AOP vital sign visualizer.
In the visualizer, the heart rate is always showing wrong.
I'm using radar_toolbox_2_10_00_04.
I have to measure the heart rate and breath rate, the breath rate display is good, but the heart rate is always wrong
Also, can you help me to calculate manually from the graph? So I can do that manually also?

Regards,

TI-CSC

  • 0
    TI__Mastermind 20530 points

    Hello.

    We are looking into this and will provide a response by the end of the day Monday.

    Sincerely,

    Santosh

  • 0 in reply to Santosh Krishnan
    TI__Genius 12200 points

    Hi,

    Graph only displays the internal computation values. It is not possible to derive heart rate values from the graph. 

    It is important to understand why the heart rate values are incorrect. There are certain conditions which have to be met to get the correct vitals

    Antenna should face the chest area of the person. Also, is the person being tracked correctly and is the tracking distance shown correctly in the visualizer?

    The person needs to be stationary for atleast 30 seconds to get the correct values

    Regards 

  • 0 in reply to Abhishek Karkisaval
    Prodigy 10 points

    Hi,

    We also have the exact same problem with incorrect heart rate. We have met all of the conditions listed above (having the antenna at chest level, having person stationary, tracking distance correct). What else can we do?

    Is there a verbose log file I can find/enable?

    How do I rule out this not being a hardware issue?  Is there a build in self test (BIST) that I can run?

  • 0
    Prodigy 20 points

    We also have the exact same problem: the graphs are only a periodic signal as in the image above, seemingly unrelated to vital signs. The respiratory rate seems to be okay(ish), but heartrate shows as close to zero.

    Using  IWR6843ISK together with MMWAVEICBOOST and radar_toolbox_2_10_00_04
    Same problem with both the 2m and 6m chirps.

    The person seems to be tracked correctly.


  • 0 in reply to Robert Mayster
    TI__Genius 12200 points

    Hi 

    Sorry for the delayed response. The problem is with the Visualizer in radar tool box 2_10_00_04. Please use the visualizer from radar tool box 1_30_01_03. 

    You can find the visualizer at the following location radar_toolbox_1_30_01_03\tools\visualizers\Industrial_Visualizer

    We will fix the visualizer in the next radar tool box update

    Regards,