A method for elevator passenger detection including: capturing an image of an elevator passenger approaching an elevator bank to board an elevator car; determining that the elevator passenger is pregnant or disabled in response to the image of the elevator passenger; registering a priority elevator call for the elevator passenger that is pregnant or disabled; and moving the elevator car to the floor landing where the elevator passenger that is pregnant or disabled is located.

A method for self-testing a monitoring device monitoring an integrity status of an elevator suspension member arrangement includes the monitoring device having a voltage generation arrangement for generating electric voltages and applying the electric voltages to cords in suspension members of the suspension member arrangement. The monitoring device has a voltage analyzer arrangement for detecting a deterioration in the integrity status based on modifications in the applied electric voltages upon transmission through the cords. The method includes the steps of: specifically modifying the generated electric voltages to systematically induce modifications in the applied electric voltages upon transmission through the cords which, under normal operation conditions of the monitoring device, would be interpreted by the monitoring device as indicating the deterioration in the integrity status; verifying whether the deterioration in the integrity status is correctly detected; and initiating a self-test-failure-action if the deterioration in the integrity status is not correctly detected.

A method for centering a self-propelled elevator car in an elevator installation, the car having at least two driven friction wheels pressed against each of two opposing guide surfaces of a first and second guide rail strands to drive the car along a travel path, the method including independently adjusting a first rotational speed of the friction wheels acting on the first guide rail strand and a second rotational speed of the friction wheels acting on the second guide rail strand. In a centered state, a center of the car is located on a center plane extending in parallel with the first and second guide rail strands, and when a deviation of the car center from the center plane is detected, the first rotational speed and/or the second rotational speed is changed such that, when the car moves along the travel path, the car center moves toward the center plane.

A control device controls an elevator system in inspection mode, the elevator system having a safety circuit with at least one safety contact that is open in inspection mode and an inspection path for bridging the safety contact. The control device includes first and second operating elements for controlling the inspection mode and first and second switching units connected in parallel and each having a contact associated with a delay means. The switching units close and open their contacts in response to actuation and release of the first and second operating elements respectively. The contacts are series connected in the inspection path. The first and second delay means delay opening of the associated contacts by defined delay times after the release of the first and operating element respectively.

An elevator includes a car movable in an elevator shaft and a counterweight movable together with the car in the elevator shaft in a direction of movement opposite to the direction of movement of the car. The car has a car roof and a balustrade arranged on the car roof at a side of the car facing toward the counterweight. The balustrade can be pivoted between a first fall protection position and a second fall protection position. In each of these fall protection positions the balustrade can be secured in order to prevent unintended movement of the balustrade. In the first fall protection position, the balustrade has an inclined orientation. In the second fall protection position, the balustrade has a vertical orientation.

An electronic test node (1) for a safety chain (22) in a passenger conveyor system includes an electrical connection (2) for an associated safety switch (4). A processor (6) is configured to monitor a signal carried by the electrical connection (2) so as to detect whether the associated safety switch (4) is open or closed. The electronic test node (1) further includes a test switch (8) connected in series with the electrical connection (2), wherein the processor (6) is configured to run a test by selectively opening the test switch (8) and monitoring for a change in the signal carried by the electrical connection (2).

The invention relates to a method for generating dynamic information content of a people transport system. The method comprises: receiving an information content request from a terminal device, obtaining status information representing the current status of at least part of the people transport system from a server system, generating a document map comprising references to one or more information content topics based at least on the obtained status information, retrieving the one or more information content topics referred in the document map, generating the dynamic information content based on the retrieved one or more information content topics from the server system, and providing the generated dynamic information content to the terminal device. The invention relates also to a computing unit, a system, and a computer program.

A user interface shows status of devices of an elevator and escalator arrangement. The status is based on holistic measurement approach wherein measurements for one or more indicator values are made continuously and compared against reference values. The difference between the measured and reference values are shown in a user interface for indicating that status of individual components and the overall system.

The invention relates to an elevator arrangement comprising an elevator with a control system, and an inspection or maintenance mode, which elevator further comprises an elevator car arranged to run up and down in an elevator shaft along its guide rails, and which elevator car is equipped with a roof and a car operating panel. The arrangement comprises actuating means to open the roof of the elevator car, which actuating means are operatively connected to the car operating panel of the elevator.

An elevator inspection and maintenance system, the system including a mechatronic body movable via remote or automatic operation, an inspection and maintenance head installed on the mechatronic body, where the inspection and maintenance head is fitted with a sensor or a manipulation tool to perform an inspection or a maintenance operation on at least one component of an elevator system remotely or automatically.