• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 30 subscribers
  • Views 497 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

IWR6843ISK: How can I get more accurate value in vital signs demo?

Murata Tetsuya
Prodigy 120 points
Part Number: IWR6843ISK

Hi!

I tried vital signs demo of IWR6843ISK in industrial toolbox.
When I stop breathing in front of it, the breathing rate does not become 0.
How can I get more accurate value?

Best regards.

  • 0
    TI__Mastermind 30405 points

    Hi Murata-san,

    1. Before taking a measurement, please ensure that you have a stable range profile display corresponding to your distance from the sensor ().3 to 0.8m as mentioned in the user guide). This is critical to getting good measurements.

    2. It takes about 10-15 seconds for the algorithm to provide a valid measurement. Please make sure that you are holding your breath and sitting still for this time for the demo to update. 

    3. Please make sure that you don't have any metal or reflective (to radar) items on your chest e.g. ID badge etc. when taking the measurement.

    Regards

    -Nitin

  • 0 in reply to Nitin Sakhuja
    Prodigy 120 points

    Hi, Nitin!

    Thank you for your replying!

    I checked the source code, I resolved it.

    Because I could not hold perfectly, the value of "sumEnergyBreathWfm" does not become under threshold.

    Then, when I changed threshold, the breathing rate became 0.