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This Autonomous Snow Blower Shovels on its Own, Recharges Itself, and Keeps Going
(www.carsandhorsepower.com)
This is a most excellent place for technology news and articles.
If you go the the manufacturers website it mentions several safety systems; radar, camera and a physical bumper and grate to keep things from getting into the machine
Radar & camera can be degraded by snow/ice buildup. A grate that lets wet snow in is also going to be big enough to let rocks and other debris in.
But not kids and pets at leaat
Arms and legs allowed in are still really bad. You can't run fast in snow, and you are more likely to trip.
There's like a 1" gap in the grate and at least 3-4" from there to any moving parts. Yes, a toddler can stick their arms in there, but if that happens it will be predominantly due to horrible parenting.
It obviously isn't 100% hazard free, it's a motorized power tool after all, but it does seem to have proper mitigations in place to reduce risk of injury to a reasonable level.
Not allowing it to operate autonomously with zero supervision should be a requirement. Anything less is not reasonable mitigation.
Get your fat fuck kids out with a shovel and clear the driveway.