Patent ID: 7755540
Filing Date: 2010-07-13
Classification: E05F,E05Y,G01S,H01Q

Abstract:
1. A method for operation of a radar sensor in a near area for production of a detectable coverage field for the identification of people and/or stationary objects by means of an antenna, wherein a presence sensor is equipped with an FMCW radar for distance measurement, and/or a radar sensor is equipped with an autonomous auxiliary antenna for carrying out a self test, wherein energy for a test supply is taken from the radar sensor and/or from the present sensor by means of the autonomous auxiliary antenna, and serviceability of the radar sensor and/or of the present sensor is checked, and wherein a signal which is evaluated and used to evaluate the serviceability of the radar sensor and/or of the present sensor is determined by drawing energy by means of the autonomous auxiliary antenna or by loading the actual coverage field of the radar sensor and/or of the present sensor at different frequencies or at the same frequencies.