Surface heating, method for its production, and heatable object, and seat occupancy recognition, seat with it, and seat occupancy recognition method

摘要

A system for recognizing the occupancy of a seat, containing elements made of electrically conducting synthetic material, especially strips made of electrically conductive polyurethane. A seat equipped with the system. A method for recognizing seat occupancy whereby an alteration in resistance of the electrically conductive material occurring in a change of weight is detected.