Movement Detection System and Method
AssigneeVLS Foundation
InventorVincent Spruytte
Life of this patent
Estimating the term…
Abstract
A method for detecting movements within a vehicle, includes sensing vibrations inside the vehicle by a first set of sensors and generating a first set of signals representative of the vibrations sensed inside said vehicle. Also simultaneously vibrations are sensed from external disturbances by a second set of sensors and a second set of signals is generated representative of the vibrations sensed from external disturbances. A set of correlation coefficients is determined between signals from the first set of signals and the second set of signals. A statistical analysis is performed of the set of correlation coefficients. Movement based on the statistical analysis is decided.
Claims10
Method for detecting movements within a vehicle, comprising the steps of:
- sensing vibrations inside said vehicle by means of a first set of sensors and generating a first set of signals representative of said vibrations sensed inside said vehicle,
- sensing simultaneously vibrations from external disturbances by means of a second set of sensors and generating a second set of signals representative of said vibrations sensed from external disturbances,
- determining discrete root-mean-square (RMS) values from said first and second set of signals,
- determining from said discrete RMS values a set of correlation coefficients between said discrete RMS values,
- performing a statistical analysis of said set of correlation coefficients, and
- deciding on movement based on said statistical analysis.
(canceled)
System for detecting movements within a vehicle, comprising:
- a first set of sensors for sensing vibrations inside said vehicle, generating a first set of signals,
- a second set of sensors for simultaneously sensing external disturbances, generating a second set of signals and
- a processing unit comprising calculation means for calculating discrete RMS values from said first set of signals and said second set of signals and for deriving a set of correlation coefficients between said discrete RMS values and a statistical analysis unit for analysing said set of correlation coefficients and taking a decision on movement.
Dependencies are inferred from the claim text.