respiratory rate

[burcu]

Hi Charlie,

Now,I'm trying to call another vi by pyshing a button in front panel. I put the icon of the vi on the diagram but I don't know how to connect it to a button. Do you have any idea?

[rpursley8]

I guess the easiest to insert into your progam would be to place the vi you want to open in a case statement with the boolean button tied to the control.

[burcu]

But I can not connect any indicator to my sub-vi, how can I handle this?

[rpursley8]

Put your vi in the 'True' case of your case statement. If your button is false (you didn't push it) the vi will not run. If you push the button and make the button state 'True' then the vi will run because it is in the 'True' case.

Is this what you mean and what you want to happen?

[rpursley8]

Attached example

[rpursley8]

Also, if you want the front panel to open up when it is executed, you must go to the vi on the block diagram and click the right button of your mouse.

Select 'Subvi Node Setup...'

Click 'Show Front Panel when called'

[burcu]

Thanks,
it's working.

[burcu]

Hi ,
As you know I'm acquiring ECG data. Now, I need to analyze this data e.g. ST segment PQ interval etc. But my acquired data has 50 Hz noise. I'm sending acquired ECG data attached .In order to properly analyze these signals I want to get rid of 50 Hz noise. I know, you dealt with ECG. What kind of filter do you recommend and do you know the low cut off and high cut off frequencies ? My sample rate is 250 Hz.
Thanks

[rpursley8]

You can just use a Butterworth Filter with the following parameters.

1. Bandstop
2. 4th order
3. Low = 45 Hz
4. High = 55 Hz

Be sure to wire the fs input with the 250 Hz.

[rpursley8]

You might also use another Butterworth Filter to remove the DC offset from your data.

1. Lowpass
2. 2nd order
3. cutoff = 0.001 Hz