US Patent 9988238 Elevator dispatch using facial recognition

A conveyance system includes a camera to generate an image of an area of interest; a dispatch system including a facial recognition unit and a profile unit, the facial recognition unit detecting facial features of a user in the image; the dispatch system determining if the facial features match a profile stored in the profile unit, the dispatch system scheduling car service in response to the facial features matching the profile stored in the profile unit; a system interface including a system interface camera, the system interface camera to generate a second image of the user at the system interface; the facial recognition unit detecting facial features of the user in the second image; the dispatch system determining if the facial features of the user in the second image match the profile stored in the profile unit.