The reason I shied away from using the Raspberry Pi camera module is that I live in what is essentially a wet hole in the ground in Yorkshire, is consistently wet and when it's not wet it's damp and when it's not down its usually flooding. So that's why I thought the go pro would be a better choice.

The Raspberry Pi is going to be the ideal machine I think to do the heavy lifting hopefully, and the main reason I am open to rely on CV is that there is nowhere to fit a screen on the front of my wheelchair. I tried streaming wirelessly from a go pro to my iPhone and the battery life was absolutely abysmal.

Maybe if the CV detected a problem it could make a fit bit or something similar vibrate to alert me to a problem, different numbers of vibrations were different situations etc etc. Although it is ENTIRELY possible I'm overthinking this!