摘要:
Elevator maintenance space projection systems and elevator systems including a projector located within an elevator shaft and arranged to project a display space within the elevator shaft such that the display space includes one or more projected images identifying at least one of a safety volume, a refuge space, and a maintenance location.
公开/授权文献
- US11465880B2 Elevator maintenance space projection systems 公开/授权日:2022-10-11
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