A method for detecting vibroacoustic signals and a device for performing the method

Abstract

The claimed group of inventions belongs to a field of security technologies and relates to a method for detecting vibroacoustic signals and a device for performing the method in order to prevent unauthorized access. The claimed technical solution is aimed at provision of reliable and highly effective method for detecting vibroacoustic signals, as well as a structurally simple, easy-to-manufacture and easy-to-mount device for performing the method, while providing a high level of operational reliability of the security system and significantly reducing the probability of generation of false alarm signals by providing successive processing and analysis of a vibroacoustic signal, further classifying a nature of a reason of occurrence of the vibroacoustic signal, thereby allowing to timely detect and evaluate characteristic signals as signs of a possible unauthorized access, while distracting those signals which are not intrusion signs. 1 20 25 25 25 78 16 O ct 2 02 5 2 0 2 5 2 5 2 5 7 8 1 6 O c t 2 0 2 5 A METHOD FOR DETECTING VIBROACOUSTIC SIGNALS AND A DEVICE FOR PERFORMING THE METHOD 1 Fig. 1 Fig. 2 Fig. 3.1 Input vibroacoustic signal Pre-amplified signal Time (sec) Time (sec) A m p li tu d e A m p li tu d e I Fig. 3.1 Time (sec) 50'0 O 100SEO'OE0'0520252020sto'o10'0500'00 0 I z Amplitude E Pre-amplified signal Time (sec) 50'00045100SEO'OE000.0252020STO'O100500'00 5' 0 Amplitude S Input vibroacoustic signal Fig. 2 131415 12 17 8 11106 StE / 2I 9 91L I Fire 1331415 12 17 IIS 8 OI6 StE2I 9 91L FOR PERFORMING THE METHOD A METHOD FOR DETECTING VIBROACOUSTIC SIGNALS AND A DEVICE 20 25 25 25 78 16 O ct 2 02 5 A M E T H O D F O R D E T E C T I N G V I B R O A C O U S T I C S I G N A L S A N D A D E V I C E O c t 2 0 2 5 1 6 6 2 3 4 5 2 0 2 5 2 5 2 5 7 8 1 6 1 7 1 6 6 2 5 1 2 1 5 1 4 1 3 A m p l i t u d e 0 0 0 . 0 0 5 0 . 0 1 0 . 0 1 5 0 . 0 2 0 . 0 2 5 0 . 0 3 0 . 0 3 5 0 . 0 4 0 . 0 4 5 0 . 0 5 3 A m p l i t u d e 2 1 0 0 0 . 0 0 5 0 . 0 1 0 . 0 1 5 0 . 0 2 0 . 0 2 5 0 . 0 3 0 . 0 3 5 0 . 0 4 0 . 0 4 5 0 . 0 5

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