A method of controlling an elevator door dwell time includes obtaining a predefined load weight value; obtaining a load weight value from a load weight sensor coupled to an elevator car; comparing the load weight value to the predefined load weight value to generate a difference; and adjusting the elevator door dwell time in response to the difference to define an adjusted elevator door dwell time.

Embodiments include techniques for operating an elevator safety control system and method. The techniques include charging one or more portions of an elevator system, the elevator system includes an elevator door and elevator frame, and monitoring a charge on the one or more portions of the elevator system. In addition, the techniques include detecting a change in the charge on the one or more portions of the elevator system, and responsive to the detection, controlling an operation of the elevator door.

An elevator door control device includes: a car door panel and a hall door panel that open/close, respectively; a motor that drives the car door panel to open/close; jointing means for mechanically jointing the car door panel and the hall door panel to each other so that the panels open/close in an integrated manner; a closer device that provides a self-closing force in a door close direction to the hall door panel, and controller controlling the motor. The controller includes a torque detection unit that detects a torque of the motor in at least one of door closing and door opening of the panels when the panels are jointed to each other, and a diagnosis unit determines whether or not the hall door panel can self-close via the self-closing force when the panels are not jointed to each other, based on the torque detected by the torque detection unit.

An elevator system (2, 102) includes an elevator car (4, 104), a tag detection device (16, 116) arranged to detect the presence of tags (18, 20; 118, 120) in the elevator car (4, 104) and a control system (13). The control system (13) is arranged to determine if the tag detection device (16, 116) detects at least one of a set of associated tags (18, 20; 118, 120) 10 present in the elevator car (4, 104) and, if at least one of the set of associated tags (18, 20; 118, 120) is detected in the elevator car (4, 104), to prevent at least one travel operation of the elevator car (4, 104) until all or none of the set of associated tags (18, 20; 118, 120) is detected to be present in the elevator car (4, 104).

A method and system for controlling a movable door associated with a passenger compartment, the door moveable between an opened position and a closed position configured to provide access to, or egress from, the passenger compartment. The method includes monitoring a landing area of the elevator door with at least one sensor, and determining a level of urgency of an approaching passenger based on the information from the at least one sensor. If the level of urgency exceeds a predetermined threshold, modifying a closing of the elevator door based on the level of urgency. The method may also include modifying a closing speed of the elevator door if the level of urgency exceeds a predetermined threshold.

An elevator includes a car with at least two car doors, each car door being provided with a door contact, a shaft being provided with corresponding landing doors, each landing door being provided with a door contact, each landing door opening in synchronism with the corresponding car door, the door contacts forming part of a safety circuit of the elevator, a car door contact input being connected to a middle point in the safety circuit between a series connection of the car door contacts and a series connection of the landing door contacts. A status information of the car door contact input is monitored in order to determine whether the door contacts are operational or not when the car doors are opened and/or closed with a predetermined time delay at a landing.

The present invention relates to a system for monitoring an elevator door, an elevator system, and a method for monitoring an elevator door. The elevator door has an open state or a closed state implemented by moving along an elevator sill. The system for monitoring an elevator door includes: one or more imaging sensors configured to collect image data and depth data of at least one section in the elevator sill that is exposed when the elevator door is in the open state; and a data processing device in communication with the imaging sensor and configured to receive and process the image data and the depth data to determine whether an obstacle preventing the elevator door from entering the closed state exists in the section. By applying the present invention, the safety of the elevator door can be improved effectively, and equipment property losses and personal injuries can be avoided.

An elevator control system has control over a door of an elevator and, thus, directly controls opening and closing of the door of an elevator which a robot is to board or alight from based on state information of the robot received from a robot control system.

Embodiments include a system and method for controlling doors in a multi-door system. Embodiments a controller configured to control the multi-door system, wherein the multi-door system includes a first door and a second door, wherein the first door is on a different side than the second door, and one or more sensors operably coupled to the multi-door system and the controller, wherein the one or more sensors are configured to detect one or more conditions. The controller includes a processor, wherein the processor is configured to receive an input from the one or more sensors, wherein the input comprises at least one of call information and crowd sensing information, responsive to the input, prioritize an operation of the first door and the second door based at least in part on the input, and operate the first door and second door based on the prioritization.

A method for generating maintenance data of an elevator door system includes detecting a first event during closing or opening of a door of the elevator door system and defining a time stamp of the first event, wherein the first event is opening or closing of a safety circuit; detecting at least one second event during said closing or opening of the door of the elevator door system and defining time stamp of the at least one second event; defining a difference value by comparing the time stamp of the first event and the time stamp of the at least one second event; comparing the difference value to previously stored one or more difference values; and generating maintenance data of the elevator door system. A system is provided to perform at least partly the method.