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Human fall detection using MMA8451Q

Question asked by Jeff H on Sep 26, 2016
Latest reply on Sep 28, 2016 by David Diaz Marin

I have an existing wrist-worn product that uses the MMA8451Q and I would like to add human fall detection as a feature.  I've read some research papers and looked at existing products like the Philips Lifeline and all use a pendant or attach the sensor to the wait or torso.  I do not want to waste my time trying to make fall detection work on a wrist device if the false detection rate is too high.  Does anyone have any opinions or research on wrist-worn fall detectors?  Also, I saw a NXP reference manual titled MMA7260QHFDRM Human Fall Detection Using 3-Axis Accelerometer but could not find any of the sample code it mentions.  Is this manual still valid and can I get the sample code somewhere?  Is there a sample algorithm for the MMA8451Q on fall detection?  I do not believe the freefall detection interrupt is sufficient to cover human falls.