Patent ID: 11945687
Assignee: KONE CORPORATION
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 0:
1. An elevator system for observing a misoperation, the elevator system comprising:
an observation unit configured to:
obtain data representing movement of an elevator car during a predetermined time interval, the data representing the movement of the elevator car being at least one of the following, origin and destination floor pairs, travel times between the origin floor and the destination floor, and standing times at the origin floor, and
transmit the obtained data to a processing unit; and

the processing unit configured to:
receive and store the data representing the movement of the elevator car,
generate at least one statistical parameter from the received data,
compare the at least one generated statistical parameter to at least one previously stored statistical parameter of a corresponding time interval, the corresponding time interval being a same time interval as the predetermined time interval at least one comparison period before the predetermined time interval, and
generate a signal indicating a misoperation in response to a detection that the at least one generated statistical parameter deviates from the corresponding previously stored statistical parameter over a predetermined limit.