heartbeat monitor

[ebil]

Hello there. I am new here and hope this is the right place to post such question. I am doing a project called "Heartbeat Monitor" and right now I am stuck on the display part. You see my project is basically to display the number of heartbeats. I have decided to use the NI DAQ card for this project. My hardware consists of the following:

Electrode pads > Instrumentation Amplifier > HPF > LPF > Notch Filter

I have stopped at the notch filter and though my ECG signal is not that perfect (I've filtered out some parts) I decided to go with my circuit design. Anyway right now I am stuck as to how am I going to display the ECG signal and also count the number of heart beats using the NI DAQ and then display it using LabVIEW. Anyone could guide me where I should start since I am fairly new to electronics and programming.

[LV_Pro]

Please be more specific when you say that you plan to use the NI-DAQ card. Which NI-DAQ card? How are you using it, as the instrumentation amplifier (not a good idea, shouldn't hook instruments not specifically designed for it to patients)? After the filtering?

[Chongnang]

Hi there,

From your application , I think you can use NI DAQ functions in LabVIEW to acquire your signal.

To count your signal, you have to create a software counter. This can be done by setting analog thrash hold on your signal. When the signal is higher than the treshhold, increment you count direction.

The following links below might be useful for you.

http://digital.ni.com/public.nsf/allkb/B472ABA1362F44328625729C0041A8B1?OpenDocument

http://digital.ni.com/public.nsf/allkb/39DF4F9A6F285E7986256B58006FC129?OpenDocument

Sincerely,

Gunyapart Deephanphongs

Application Engineer

NI ASEAN

[ebil]

LV_Pro: The DAQ card I will be using is somewhat like the "NI USB-6008" and I will use it as an interface between the circuit (after the filtering) and the PC.

Chongnang: Thank you for your input, I will try your suggestion A.S.A.P.

[marp84]

i wonder to know what is more efficien between threshold detector or peak detector to make a great ecg project?

tanx before 

[marp84]

i wonder to know what is more efficien between threshold detector or peak detector to make a great ecg project?

tanx before