Lift facility, marking device and measuring device

摘要

The elevator system (1) has an elevator cab (4) in an elevator shaft (2) and a measurement tape (5) for determining the position of the elevator cab inside the elevator shaft. The measurement tape is arranged vertically in the elevator shaft and has a code along the measurement tape. A marking element (7), particularly guide element is attached in the elevator shaft, which has a reference marking. A sensor unit is provided for detecting the reference marking, which has an illumination source and a sensor, which form a detection field for detecting the measurement tape. The reference marking is arranged such that it is captured by the detection field. An evaluation unit aligns the position determined by the measurement tape with the reference marking. Independent claims are included for the following: (1) a marking device for marking and encoding the position of an elevator cab inside an elevator shaft and for the attachment inside the elevator shaft; and (2) a measurement apparatus for determining the position of an elevator cab within an elevator shaft with a marking unit.