초록 ▼

A glass shattering detector and method for detecting breaking glass take advantage of the characteristics of high frequency components of a glass shattering signal which can be statistically recognized. In contrast to most non-glass breaking transient events, the higher frequency components are wide

A glass shattering detector and method for detecting breaking glass take advantage of the characteristics of high frequency components of a glass shattering signal which can be statistically recognized. In contrast to most non-glass breaking transient events, the higher frequency components are wide-band and random and, based on theses characteristics, can be distinguished from many non-glass break event transient signals.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A glass break detector comprising a transducer for sensing acoustic pressure and a processing arrangement which processes an output signal of said transducer using statistical samp

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A glass break detector comprising a transducer for sensing acoustic pressure and a processing arrangement which processes an output signal of said transducer using statistical sampling techniques, said statistical sampling techniques analysing said signal and also determining whether the signal is non-deterministic and producing an alarm when the analysis determines the signal has the required shape and is non-deterministic.