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Topic: Real Time DAQ acquisition and Processing
Replies: 2   Last Post: Jan 17, 2014 6:56 AM

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Lee Stanley

Posts: 1
Registered: 5/23/13
Real Time DAQ acquisition and Processing
Posted: May 23, 2013 8:21 AM
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Hi,

Is there anyway to use session based DAQ to capture real time and process signal simultaneously? I managed to acquire signal continuously but is there a way to log the data as well as to process the data and plot in different plot at the same time?

Acquiring Code

s = daq.createSession('ni');
s.addAnalogInputChannel('dev2', 0:1, 'Voltage');
set(s.Channels,'Range',[-10 10]);
s.IsNotifyWhenDataAvailableExceedsAuto = true;
lh = s.addlistener('DataAvailable', @plotdata);
s.IsContinuous = true;
s.startBackground()
while s.IsRunning
pause(0.5)
fprintf('While loop: Scans acquired = %d\n', s.ScansAcquired)
end

Plot Data function
function plotdata(src, event)

plot(event.TimeStamps, event.Data)

end

Summary: How to log the event data and time as well as to process the data at the same time to be plotted in another new plot?

Thanks.Any advice?

Cheers,
Stanley



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