IOT on Wheels Design Challenge - Fatigue Alert System Blog #2

RE: IOT on Wheels Design Challenge - Fatigue Alert System Blog #2

e14phil — Tue, 03 Oct 2017 13:31:44 GMT

The system looks interesting, I can't wait to see it up and running!

mcb1 — Mon, 02 Oct 2017 04:05:07 GMT

Dale

I'm curious about the 3 second timer used in your flowcharts.

On the right side you've already detected excess vibrations which may indicate the vehicle has strayed off to the right.

By my calculation at 100kmph the vehicle will travel 27.77m/sec and therefore after 3 secs has quite likely travelled 83m.

IMO doing something much more drastic at 1 or 1.5 second after the wrist vibrations might be more useful.

Mark

DAB — Sun, 01 Oct 2017 18:05:02 GMT

Hi Dale,

Have you considered putting a 3-axis accelerometer strapped to the head?

You could use it to see if the head is starting to droop, which is an indication of fatigue and sleep deprivation.

DAB