Abstract: An energy-autonomous elevator system control element includes a piezoelectric layer and processing unit for detecting a control operation, a transmitting unit for wirelessly transmitting at least one signal to a remote elevator system controller, the at least one signal being generated automatically by the elevator system control element on the basis of the control operation, and an energy recovery unit for supplying electrical energy for the elevator system control element. The energy-autonomous elevator system control element can be used as a car operating panel or a landing operating panel in an elevator system.

Abstract: A method and a device for detecting the presence of an object in an elevator car of an elevator system that has a control unit include a color temperature sensor. The color temperature sensor is integrated into the elevator car to acquire the color temperature of the light incident on the color temperature sensor during elevator operation, and an object present in the elevator car is detected by the control unit connected with the color temperature sensor by comparing the color temperature acquired during elevator operation with a previously acquired reference color temperature.

Abstract: A monitoring system of an elevator installation having an elevator door and a method of operating the monitoring system are suitable for generating usage data of the elevator door, the monitoring system including a sensor arranged in the elevator installation, wherein at least one physical parameter of the environment of the sensor can be detected by the sensor, and an evaluating unit, which determines an operating state of the elevator door by a course of the physical parameter over time.

Abstract: A method and an apparatus for interchanging data between at least one sensor unit arranged in an elevator shaft of an elevator system and a monitoring unit of a service center which is locally remote from the elevator system, wherein an elevator car which moves vertically in the elevator shaft, include a first communication unit arranged at the elevator car. Data are transmitted from the at least one sensor unit to the first communication unit via a first communications network on the basis of the position of the elevator car and are stored by the first communication unit. The stored data are transmitted from the first communication unit to a second communication unit on the basis of at least one rule and are transmitted from the second communication unit to the monitoring unit via a second communications network.

Abstract: A method for the exchange of data between one unit of an elevator system and a monitoring unit of a service center locationally remote from the elevator system, wherein, via a first communication network, the one unit is connected with a communication unit arranged on, or in, an elevator car that travels vertically in an elevator hoistway, and wherein the data that are transmitted by the one unit are transmitted to the communication unit and stored there. A mobile-communication end-device brought into the elevator car by an elevator passenger is connected, via a second wireless communication network, with the communication unit and the stored data are transmitted by the communication unit to the end-device, and stored in the latter. When the elevator car is exited by the elevator passenger with the end-device, the stored data are transmitted from the end-device via a public mobile-communication network to the monitoring unit.