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Mobile PPG
Pēdējās izmaiņas veiktas:
16.05.2012

About photoplethysmography (PPG):

The non-invasive reflection photoplethysmography (PPG) method uses the back-scattered optical signals for temporal analysis of the skin blood volume pulsations. The periodical increase of blood volume in micro-vessels due to their dilatation (expansion) during the systolic raise of pressure with the following diastolic contraction (relaxation) over each heartbeat causes corresponding changes in absorption of optical signals traveling within the working volume. Consequently, the  time-dependent parts of the properly filtered PPG signals adequately reflect the skin blood volume pulsations during microcirculation.

Heart by pushing blood through the blood vessels is changing light absorption properties of tissue. These changes can be detected by light sensor. Usually as a light source is used IR-diode and as a sensor - photodiode, but Mobile PPG uses surrounding light and phone camera instead.

 Instructions:

 1) Put your forefinger (or any other finger) to the phone camera:

 2) Direct camera to the source of light (the Sun, lamp or even PC monitor).

 

3) If the quality of PPG signal will be good enough, then approximate pulse rate in BPM (Beats Per Minute) will be calculated and showed on the top right corner of the screen.

 

 

Application published at OVI for following devices:

S60 3rd Edition:

Nokia N71, Nokia E70, Nokia E65, Nokia E60, Nokia E50, Nokia N93i, Nokia N93, Nokia N92, Nokia N80, Nokia N77, Nokia N75, Nokia N73

S60 3rd Edition FP1:

Nokia N81 8GB, Nokia 6124 classic, Nokia E90 Communicator, Nokia N82, Nokia E51, Nokia N95 8GB, Nokia 5700 XpressMusic, Nokia 6290, Nokia N95, Nokia E66, Nokia E71, Nokia N81, Nokia 6121 classic, Nokia 6110 Navigator, Nokia 6120 classic, Nokia N76, Nokia E63

S60 3rd Edition FP2:

Nokia 6220 classic, Nokia C5-00, Nokia X5-00, Nokia N96, Nokia N78, Nokia C5-01, Nokia 6702, Nokia 6700 slide, Nokia E73, Nokia 6788, Nokia 5320 XpressMusic, Nokia E71x, Nokia 6720 classic, Nokia 6730 classic, Nokia E5-00, Nokia E75, Nokia 6650 fold, Nokia E72, Nokia 6790 Surge, Nokia 5630 XpressMusic, Nokia 5730 XpressMusic, Nokia X5-01, Nokia E55, Nokia N86 8MP, Nokia E52, Nokia N79, Nokia 6650 Fold AT&T, Nokia 6790 Slide, Nokia 6788i, Nokia 6710 Navigator , Nokia N85, Nokia 6760 slide, Nokia 6210 Navigator

Click here to download this program.

Contacts:

E-mail: mobilePPG@gmail.com Renars.Erts@gmail.com