Elevator door control system for detection of obstacle trapping
AssigneeOtis Elevator Company
InventorHakKi Han
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed to an elevator door control system, which can prevent the risk of an obstacle-trapping (e.g. finger-trapping) accident. According to one aspect of the present disclosure, there is provided an elevator door control system comprising: at least a camera module configured to monitor opening/closing of doors of an elevator and analyze the captured video to determine whether there is an obstacle-trapping accident; a data communication part configured to transmit the analyzed video; and a main controller of the elevator configured to control opening/closing of the doors of the elevator based on determination results of the analyzed video transmitted from the data communication part.
Claims19
An elevator door control system comprising:
- at least one camera module configured to monitor opening or closing of doors of an elevator and analyze the monitored video of opening or closing of doors of an elevator door to determine whether there is an obstacle-trapping accident;
- a data communication part configured to transmit the analyzed video;
- and
- a main controller of the elevator configured to control opening or closing of the doors of the elevator based on determination results of the analyzed video transmitted from the data communication part.
A method for controlling doors of an elevator, the method comprising:
- monitoring opening or closing of the doors of the elevator, the monitoring being carried out directly on monitoring zones including gaps between the doors of the elevator and gate frames, after a command to open the doors is received from a main controller of the elevator until the doors of the elevator reach the monitoring zones;
- determining whether there is an obstacle-trapping accident by analyzing the monitored video;
- and
- controlling the opening or closing of the doors of the elevator based on the determination results as to whether a finger is trapped in any of the gaps.
An elevator car comprising:
- at least one elevator door configured to be opened or closed by relative movement to a gate frame;
- and
- at least one Internet of Things (IoT) camera configured to detect an obstacle in a gap between the elevator door and the gate frame,
- wherein the at least one IoT camera is disposed on a car door operator lintel installed above the elevator car door so that it directly monitors a monitoring zone including the gap, and
- wherein the elevator door is opened or closed based on results of the determination as to whether an obstacle is trapped in the gap made by the IoT camera.
Dependencies are inferred from the claim text.