IWR6843ISK: Timestamp of The heart waveform from vital sign demo

houdali nabil

Intellectual 280 points

Part Number: IWR6843ISK

Hi,

I'm using the vital sign demo (68xx_vital_signs) and I used the provided script matlab to read the datas.

The heart and the breathing waveform are provided with a x axis corresponding to the frame number.

I need to get a time stamp instead frame number. Could you please help me.

Thanks

over 2 years ago

0 Angie Mitchell over 2 years ago

TI__Genius 10730 points

Hi Houdali,

The frame period is dependent on the 5th value in the framecfg and it is in milli-seconds. If you know your start time you can use this to calculate the times for each frame.

Thank you,

Angie

0 houdali nabil over 2 years ago in reply to Angie Mitchell

Intellectual 280 points

Hi ,

thanks for your feedback.

What's the maximum frame perido that i can use?

Thanks

0 Angie Mitchell over 2 years ago in reply to houdali nabil

TI__Genius 10730 points

Hi,

To optimize the frame period for the vital signs algorithm I would recommend not going above 100ms for accurate BR and not going above 70ms for accurate HR.

Thanks,

Angie

0 houdali nabil over 2 years ago in reply to Angie Mitchell

Intellectual 280 points

Hi,

Sorry, I meant that I'm interested by a small frame period, so what's the minimum limit?

Thanks

0 Angie Mitchell over 2 years ago in reply to houdali nabil

TI__Genius 10730 points

Hi,

I would say the minimum is 50ms for an accurate HR/BR result.

Thanks,

Angie

0 houdali nabil over 2 years ago in reply to Angie Mitchell

Intellectual 280 points

ok thank you

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IWR6843ISK: Timestamp of The heart waveform from vital sign demo