Method for operating an anti-theft alarm system for a vehicle

Abstract

The invention relates to a method for operating an anti-theft alarm system for a vehicle. The vehicle includes a sensor device for monitoring a vehicle interior and an alarm means. The method includes: transmission of an electromagnetic output signal by the sensor device; reception of an impulse response to the output signal by the sensor device, wherein the impulse response includes a plurality of runtime components, wherein each runtime component is characteristic of a specific signal runtime; comparison of the impulse response with a reference impulse response and determination of changes of the runtime components relative to the reference impulse response; determination of a change value as a function of the changes in at least a portion of the runtime components by aggregating the changes in at least a portion of the runtime components; and activation of the alarm means when the change value reaches a predetermined reference value.

Dependencies are inferred from the claim text.