CCS/IWR1443BOOST: Breathing rate

Darren Ho

Part Number: IWR1443BOOST

Tool/software: Code Composer Studio

Hi,

I would like to ask how the breathing rate information for the vital signs demo is calculated? Currently, i would like to run a python code that is able to display the breathing rate and the heart rate using a raspberry pi, but i am unable to get the breathing rate to be as accurate as that of the demo. I have tried using values from the breathingRateEst_FFT and breathingRateEst_peakCount, but they do provide information as accurate as that of the demo so i would like to inquire if there is any way to do so via a python code or may i know which parameter is referenced to determine the breathing rate for the demo?

Thank you!

over 4 years ago

0 Akash Gondalia over 4 years ago

TI__Guru 50240 points

Hi Darren

Can you elaborate on where you are seeing discrepancy from the demo?

Regards,

0 Darren Ho over 4 years ago in reply to Akash Gondalia

Prodigy 30 points

Hi Akash,

The demo works just fine! However when i try to integrate it to a python code and run it on a raspberry pi, the data i get does not match with the one i get from the demo.
E.g When i hold my breathe, the demo reflects 0 breathing rate but i am unable to replicate that in python

Currently the data i am reading is from breathingRateEST_FFT and breathingRateEst_peakCount, does the demo read the data from these output packet as well or is there any post processing after reading the data?

Thank you!

0 Darren Ho over 4 years ago in reply to Akash Gondalia

Prodigy 30 points

Hi Akash,

in the main.c code, i also discovered this portion

However, there doesnt seem to be a breathRateEst_xCorr in the output packet, whereas the heartRateEst_xCorr exist.

0 Akash Gondalia over 4 years ago in reply to Darren Ho

TI__Guru 50240 points

Hi Darren

It seems more likely that the error is in the protocol of the Raspberry Pi Host.

Please note the Vital Signs Lab is provided as-is and support for it on E2E Forums is limited.

Regards,

Sensors

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CCS/IWR1443BOOST: Breathing rate