Automatic system and method for detecting presence of people or animals in a vehicle

摘要

A method of detecting animate presence in a vehicle, including, receiving an electronic signal from a motion sensor measuring vibrational motion of the vehicle, calculating a representation of the signal that differentiates between periodic motions which were combined to form the received signal, calculating a spectral density of the calculated representation, forming a decisive functional from the spectral density, comparing the decisive functional to a pre-determined threshold value to determine if there is animate presence in the vehicle.

主权项

1. A method of detecting animate presence in a vehicle, comprising:
receiving an electronic signal from a motion sensor measuring vibrational motion of the vehicle; calculating a representation of the signal that differentiates between periodic motions which were combined to form the received signal; calculating a spectral density of the calculated representation; forming a decisive functional from the spectral density; comparing the decisive functional to a pre-determined threshold value to determine if there is animate presence in the vehicle.