Elevator door monitoring system
AssigneeInventio AG
InventorsRomeo Deplazes, Philipp Angst
Life of this patent
Estimating the term…
Abstract
A monitoring system for monitoring doors such as a shaft or cabin door, of a lift installation includes a sensor element associated with the doors for monitoring the state or position of the door. An evaluation system is connected to the sensor element and evaluates the sensor signals. The evaluation system can perform continued evaluation in short time intervals in order to provide a continuous record of the state of the monitored doors and temporal changes in the signal characteristics of the sensor signals.
Claims13
A monitoring system for a lift installation having at least one of a shaft door or cage door to be monitored, comprising:
- at least one sensor means for monitoring the state of the monitored door and an evaluating system connected to the sensor means for evaluating signals made available by the sensor means for evaluating signals of the sensor means at short intervals in time in order to detect the state of the monitored door and the condition of the sensor system as reflected by changes over time of a signal characteristic of the signals of the sensor means.
Dependencies are inferred from the claim text.