A method for controlling movement of an elevator car includes driving the car vertically to a landing; activating a park brake; and holding the car immovable with the park brake. The holding includes compressing a guide rail by compression members with a first compression force; opening a door for allowing loading and/or unloading the car; maintaining the door open for allowing loading and/or unloading the car while the car is held immovable; and starting closing movement of the door. After the starting closing movement of the door, relieving the brake for allowing the elevator car to start to move vertically. The relieving includes reducing the compression force of the brake, to be smaller than the first compression force, such that the compression members start sliding vertically against the guide rail; maintaining compression with a smaller compression force than the first compression force, allowing the compression members to continue to slide vertically against the guide rail; and thereafter removing the compression.

A system including one or more processors, one or more non-transitory storage mediums, a data file, and executable instructions. The processor is configured to receive a door close signal from a door close selector and a door open signal from at least one of a door open selector and a door obstructed sensor. The data file is stored in the non-transitory storage medium and includes a door open time duration associated with at least one of the door open signal and the door close signal. The executable instructions are stored in the non-transitory storage medium and is executed by the processor. The executable instructions are configured to generate the door open time duration based on at least one of the door open signal and the door close signal. The processor is configured to output a door open command based, at least in-part, on the door open time duration.

An elevator includes a shaft, a car movable in the shaft, a drive operatively connected to the car and by which the car can be moved, a brake, a plurality of shaft doors and a safety control system. The safety control system has a secure safety control unit of a first type and at least one secure safety control unit of a second type. The safety control unit of the first type and the at least one safety control unit of the second type are interconnected. The at least one safety control unit of the second type collects a state of any of the shaft doors. The safety control system is adapted such that the state of each of the shaft doors can be collected directly only by one of the safety control unit of the second type.

An passenger conveyance system includes a depth-sensing sensor within a passenger conveyance enclosure for capturing depth map data of objects within a field of view that includes a passenger conveyance door. A processing module is in communication with the depth-sensing sensor to receive the depth map data, the processing module uses the depth map data to track an object and calculate passenger data associated with the tracked object. a passenger conveyance controller receives the passenger data from the processing module to control operation of a passenger conveyance door in response to the passenger data.

A passenger conveyance system includes a depth-sensing sensor for capturing depth map data of objects within a field of view adjacent a passenger conveyance door. A processing module in communication with the depth-sensing sensor to receive the depth map data, the processing module uses the depth map data to track an object and calculate passenger data associated with the tracked object, and a passenger conveyance controller to receive the passenger data from the processing module, wherein the passenger conveyance controller controls a passenger conveyance dispatch control function in response to the passenger data.

A method for monitoring thresholds for performance attributes in an elevator system is provided. Aspects includes collecting, by a sensor affixed to an elevator car, sensor data associated with the elevator system wherein the sensor data comprises one or more performance attribute values for a set of performance attributes of the elevator system. Obtaining a threshold profile associated with the elevator system, wherein the threshold profile comprises thresholds for each performance attribute in the set of performance attributes of the elevator system. Comparing the one or more performance attribute values to corresponding thresholds for the set of performance attributes and transmitting an alert for any of the one or more performance attribute values exceeding the corresponding thresholds for the set of performance attributes.

A lock for an elevator door, the lock being a wireless magnetic field induction current controllable lock.

An elevator safety device 16 for monitoring a landing door 10 of an elevator system 2. The elevator system 2 includes a landing door sensor 14 arranged to detect a state of the landing door 10. The elevator safety device 16 includes a power source 20 arranged to power the landing door sensor 14 independently of a power supply 19 of the elevator system 2 and a memory 22 arranged to record a state of the landing door 10 detected by the landing door sensor 14 when the landing door sensor 14 is powered by the power source 20.

An elevator safety device 16 for monitoring a landing door 10 of an elevator system 2. The elevator system 2 includes a landing door sensor 14 arranged to detect a state of the landing door 10. The elevator safety device 16 includes a power source 20 arranged to power the landing door sensor 14 independently of a power supply 19 of the elevator system 2 and a memory 22 arranged to record a state of the landing door 10 detected by the landing door sensor 14 when the landing door sensor 14 is powered by the power source 20.

An illustrative example embodiment of an elevator door lock includes a latch that is moveable between a locking position and a released position. The latch includes a locking surface configured to engage a stop when the latch is in the locking position. A magnet is situated to magnetically attract a portion of the latch to selectively move the latch from the locking position into the released position.