LabVIEW
Pulse oximeter that read data from datasheet(.csv)
I realize that English is not your first language, however, data was posted and not your algorithm. I have read your assignment and now see that your instructor's goal is to have you implement an algorithm in LABVIEW. This is why I asked for the algorithm. Use Google to search for Pulse oximeter Beer's Law. Ask your instructor to help you with calculating the SAO2 and PULSE RATE by hand (no computer).
I have a few observations and suggestions to improve with your LONG-TERM learning (this will not help you with your assignment):
1) Labview = Data-Acquisition. I suggest that you use measure an analog oximeter signal (http://tinyurl.com/oximeter1) to learn how Labview can be quickly used measure signals. The video shows an Nellcor N600X analog pleth signal collected with MATLAB using an Arduine Due: the concept is the same.
2) MATLAB = Signal Analysis. A mathematics package like MATLAB is the place to prototype the algorithm. The upper plot shows your red data:
I think that because of the order in which the data is stored, the data is 'backwards': the MATLAB command fliplr() was used to create the lower graph which (from experience) depicts a more realistic pleth waveform. I discarded the first data point and first column. Although this is a NI board and NI has made significant progress in the last 20 years regarding signal processing, MATLAB or NumPY would be my first choice.
3) Finally, I would suggest that you focus on either the algorithm OR the data-acquisition: NOT both. The algorithm involves Beer's law and it would be helpful (maybe necessary) to have an undergraduate EE degree. If you are an undergraduate or in highschool I suggest using wiring a Nonin iPod 3150 oximeter to a PL2303HX Converter USB To RS232 TTL USB To COM to demonstrate that you can wire up a device correctly and read a signal. I have mentored students serial communications and have 2 devices remaining that are 'plug and play.
Hi Gajo,
How can I detect two adjacent peaks from array? And show their value and index?
Simple algorithm:
- search first peak and show its value/index
- then search the second peak starting and index of first one +1…
Hi Gajo,
LabVIEW comes with a lot of signal processing functions, including "Peak Detection"…
What have you tried so far?
Hi Gajo,
peak detect but I cannot connect my array with that vi.
Attach your current VI with your tries to use PeakDetection…
