Patents Assigned to OTIS ELEVATOR COMAPNY
  • Patent number: 11584613
    Abstract: The present invention relates to determining the movement of a passenger relative to an elevator landing area, which belongs to the field of elevator intelligent control technologies. An automatic elevator calling system of the present invention comprises: a first wireless signal module installed in an elevator car, which is used for broadcasting a first wireless signal; wherein the first wireless signal module is further used for receiving information regarding the movement of a passenger relative to the elevator car, and the information regarding the movement is determined based on the change in a signal strength of the first wireless signal received by a personal mobile terminal carried by the passenger.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: February 21, 2023
    Assignee: OTIS ELEVATOR COMAPNY
    Inventors: Wenbo Huang, Xiaofei Guo