An elevator door safety system has a motion sensor and a proximity or door sensor defined in a fire-rated elevator entrance assembly. The sensors work together to determine when to open a closing door. The invention further defines a method of controlling an elevator door providing a motion sensor and providing a door sensor, wherein signals from each sensor are sent to a control board to determine when to open elevator doors in response to detecting a person in a detection area in an elevator entrance area.

Disclosed is a robot interlocking elevator control system. The robot interlocking elevator control system provides countermeasures against a failure mode in a boarding/alighting procedure of a robot with respect to an elevator for movement between floors in a building, thereby achieving significant improvement in overall service quality and operation efficiency of an elevator system controlled in conjunction with the robot.

A computer-implemented method includes executing a people transit system associated user application, the people transit associated user application enabling a use of multiple operation modes; obtaining a trigger event associated with the people transit system; obtaining profile information associated with a user using the people transit system associated user application; and allowing the use of a specific application mode among multiple application modes based on the trigger event and the profile information.

An elevator system includes a hoistway and an elevator car positioned in the hoistway and configured to travel along the hoistway. The elevator car includes an elevator car door. A door operator assembly is fixed in the hoistway at a landing floor and includes a sensor to sense presence of the elevator car at the landing floor; and a door operator mechanism to open both the elevator car door and a landing floor door when the sensor senses presence of the elevator car at the landing floor. A light source may be fixed at the hoistway and a light transmitter is positioned at the elevator car to gather light from the light source and output the light into an interior of the elevator car. A ventilation system may be fixed at the hoistway and is interactive with the elevator car to condition an interior of the elevator car.

An elevator door drive comprising: an elevator door motor; and an elevator door controller comprising at least one button; wherein the elevator door controller is arranged to generate a Pulse Width Modulation (PWM) drive signal for driving the elevator door motor; wherein the elevator door controller is arranged to provide an acoustic frequency PWM signal to the elevator door motor responsive to a press of the at least one button. When the elevator door motor is provided with a PWM signal in the acoustic range, the current passing through the motor windings generates forces that result from that current and the magnetic fields in the motor. These forces excite vibrations in the motor components that generate audible noise (which may be referred to as audible magnetic noise or electromagnetic acoustic noise).

Disclosed is a robot interlocking elevator control system. The robot interlocking elevator control system provides countermeasures against failure modes in a boarding/alighting procedure of a robot with respect to an elevator for movement between floors in a building, thereby achieving significant improvement in overall service quality and operation efficiency of an elevator system controlled in conjunction with the robot without delay of a passenger service.

Methods for the modernization of an elevator group which includes a plurality of elevators each with a car and an elevator controller for controlling the respective car. At least one input terminal is mounted for acquiring destination call signals and a group computer is installed in the course of the modernization process. The group computer is suitable for evaluation of the destination call signals as well as for the output of at least one first control signal. For each elevator furthermore a respective control unit is installed for reading in the first control signal and a control module is installed at the respective car for issuing an internal call for the respective car initiated by the first control signal.

A method of monitoring a door of an elevator car within an elevator system including: detecting a first plurality of accelerations along an X-axis of the elevator system during a first time period; detecting a second plurality of accelerations along a Y-axis of the elevator system during the first time period; determining an absolute value of the first plurality of accelerations; determining an absolute value of the second plurality of accelerations; determining a first summation of the absolute value of the first plurality of accelerations and the absolute value of the second plurality of accelerations; and determining whether the door of the elevator car is in motion during the first time period by determining whether a maximum value of the first summation is greater than a threshold value.

A method of monitoring a door of an elevator car within an elevator system including: detecting a first plurality of accelerations along an X-axis of the elevator system during a first time period; detecting a second plurality of accelerations along a Y-axis of the elevator system during the first time period; determining an absolute value of the first plurality of accelerations; determining an absolute value of the second plurality of accelerations; determining a first summation of the absolute value of the first plurality of accelerations and the absolute value of the second plurality of accelerations; and determining whether the door of the elevator car is in motion during the first time period by determining whether a maximum value of the first summation is greater than a threshold value.

A zone object detection system including a passenger compartment. Also included is a door moveable between an opened position and a closed position. Further included is a first sensor monitoring a first zone outside of a plane of the door. Yet further included is a second sensor monitoring a second zone comprising at least one of the plane of the door and outside of the plane of the door. Also included is a controller in operative communication with the first sensor and the second sensor, the controller commanding a first modification of a door closing movement of the door if an object is detected in the first zone, the controller commanding a second modification of the door closing movement of the door if an object is detected in the second zone.