I was wondering what motion sensors had to do with scheduling. When I think scheduling, I think of putting in advance that you will be using the room at such and such time for this long.

This isn't really scheduling, it's just an occupancy indicator. It marks the room as occupied when it detects motion inside, I guess so that somebody else can check for a currently free room without having to walk to it and peek in.

Looks like they combine it with a beacon system. The beacon picks up people who work there who have the app, and the motion detector tries to catch visitors who do not have the app.

Sounds like you could do the same thing with a turnstile. Or better yet, a light switch to indicate occupancy.

I hope that someone will create some crazy loud alarm that goes off once someone stretches their meeting too long and people who booked the follow-up time slot are waiting outside.