Position measuring system for a mobile object in a frame and obstacle detection near the frame and/or the moble object

摘要

The method involves generating an electric signal using a control module (7) connected to an electrode (10) presenting an electrical impedance to the module. The variation of the impedance is measured by a sensor (70) of the module. The position of a movable part in the frame of a door is determined by position measuring and detecting units (79) based on the variation measurement of the sensor. An independent claim is also included for a system for measuring position of a movable part in a frame of a door and detecting an obstacle in proximity to the frame and/or the part.