Abstract: An elevator counterweight (2) includes a first part (4). The first part (4) is configured to be connected, in use, to a suspension member (8) of an elevator system (1). The first part (4) is arranged to receive an additional mass (6) when the first part (4) is connected to the suspension member (8), such that a mass of the elevator counterweight (2) can be varied. A controller (14) may be arranged to control a mass variation system (12) to vary the mass of the elevator counterweight (2) according to a schedule. The controller (14) may determine the schedule in a learning process.

Abstract: A stimulation system (301) for monitoring an elevator system, including a main controller (302) having a trigger output (312) for sending trigger signals and configurable to receive detection signals from sensors of the elevator system, and an activation controller (304) connectable to a input unit of an elevator car and having a trigger input (316) for receiving trigger signals that is connected to the trigger output; the activation controller is configured to, when connected to the input unit, cause activation, in response to a trigger signal (406), of predetermined operational signals at the input unit; and the main controller is configured to, when configured to receive the detection signals from the sensors, send (404) the trigger signal, and determine based on detection signals whether at least one change of the operating state occurs in accordance with the at least one predetermined operational signal.

Abstract: An elevator counterweight (2) includes a first part (4). The first part (4) is configured to be connected, in use, to a suspension member (8) of an elevator system (1). The first part (4) is arranged to receive an additional mass (6) when the first part (4) is connected to the suspension member (8), such that a mass of the elevator counterweight (2) can be varied. A controller (14) may be arranged to control a mass variation system (12) to vary the mass of the elevator counterweight (2) according to a schedule. The controller (14) may determine the schedule in a learning process.

Abstract: An interactive billboard system includes a main control module configured to communicate with a smart device. The main control module has a location module to determine a location of image data transmitted by the smart device, an authentication module that authenticates a smart device based at least in part on authentication information transmitted by the smart device, and a content module that receives content information from the authenticated smart device and transmits the content information to a display positioned in an elevator car.

Abstract: A elevator cab car operating panel has a convex cover cooperating with one of the cab walls to define an enclosed space in which a lighting source is disposed. A pair of translucent panels cooperate with the cover to allow the light to emanate from the car operating panel to provide the primary source of light for the cab. The cab wall may have a concave shape for cooperating with the convex cover to define the enclosed space.