As well intentioned as this project sounds, technology can not, shall not and will not replace common sense. In this case, technology even robs people of such.
Consider this: What happens when some child or pet perishes under the watch of such device. I'll bet I see a lawsuit and the blame going on the technology instead of the true root of the problem.
Just some food for thought, even the best emt or medic or nurse or doctor cannot save every patient. We just had a person perish in a fire in this county last week. The issue of a smoke detector wasn't mentioned, as the person lost was trying to get to their wheelchair to make exit. I truly believe that the best firefighters we had in the county still couldn't save this person, and it hurts us all deeply.