Need assistance with noise filtering on my digital pressure sensor project

[llimpaull]

"Thank you for your explanations, they saved me. Now I can get the data without zeroing. I can also detect the pulse. But how can I implement the Mean Arterial Pressure (MAP) method in LabVIEW so that it can automatically detect the blood pressure after one cycle of pressure measurement?"

[GerdW]

Hi llimpaull,

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@llimpaull wrote:

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• Remove the wait function, VISARead will wait anyway for data on the serial port.
• Remove the VISAOpen as it is included in VISAConfigureSerialPort AND it doesn't make any sense to open a port in each iteration…

[llimpaull]

Sure, but how can I integrate MAP into my system? Last night, I tried to add it but couldn’t find any changes. Does anyone know how to add MAP to LabVIEW and how to use it?

( https://www.ni.com/docs/en-US/bundle/labview-biomedical-toolkit-api-ref/page/lvbiomed/bio_nibp_ana... )

[llimpaull]

This is the plot I got with no hand.

And this one was taken with my hand to capture the pulse. Now, I need to create something that can read the MAP from this data. How can I add it?

 

[GerdW]

Hi llimpaull,

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@llimpaull wrote:

This is the plot I got with no hand.

And this one was taken with my hand to capture the pulse. Now, I need to create something that can read the MAP from this data. How can I add it?

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Maybe the first step would be to verify the displayed data before starting any analysis…

Are readings in the range of 4.3e+6 for real? In your Arduino code you seem to scale the reading to mmHg!?

[GerdW]

Hi llimpaull,

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@llimpaull wrote:

Sure, but how can I integrate MAP into my system? Last night, I tried to add it but couldn’t find any changes. Does anyone know how to add MAP to LabVIEW and how to use it?

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You "just" need to collect your sample data in a waveform, then you can apply that analysis function on the waveform…

[llimpaull]

No, sir, the data is raw, and I need an accurate system to automatically display the diastolic and systolic values.

[llimpaull]

So how can I add this in LabVIEW? I can't seem to find it at all. Also, can I place this in a loop so that each time a waveform is received, it sends it to the system and then gets the result back, and the cycle repeats? Is that possible?

[GerdW]

Hi llimpaull,

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@llimpaull wrote:

So how can I add this in LabVIEW? I can't seem to find it at all.

Also, can I place this in a loop so that each time a waveform is received, it sends it to the system and then gets the result back, and the cycle repeats?

Is that possible?

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LabVIEW is a full-featured programming environment, so "yes, it's possible"!

Suggestion:

[llimpaull]

Hello dear Gerdw

Could you please share the VI file with me?
I’m having difficulty recreating the program from the PNG image you sent.

Thank you for your support.