Crowdsourcing + Wearable = SOS
A jacket with all modules might look like above.
Underlying wisdom.
Another design principle: Simplicity.
SOS service design considerations: Guidelines to keep the p2p-ness alive.
First prototype of the massage module, with servo motors - front view.
Massage module mounted to a jacket - back view with motors and LED.
First prototype of the signal module, with a vibrating motor and LED.