RU2779288C1 - Acoustic information protection system - Google Patents

Abstract

FIELD: information protection.

SUBSTANCE: invention relates to acoustic information protection systems. The result is achieved by using a system for the protection of acoustic information, including a vibrating screen with at least one vibration exciter installed on it, which receives a signal from a noise generator, and fasteners are installed on the edges of the vibrating screen designed to fix it on the window frame, and there are reciprocal fastening elements on the window frame designed to install the vibrating screen. At the same time, the fastening elements installed on the window frame are interconnected by means of a wire having a connector designed to attach it to the terminal of the vibration exciter.

EFFECT: increase in the level of protection of acoustic information circulating inside a closed room.

1 cl, 4 dwg

Description

The invention relates to devices and systems designed to protect acoustic information from listening to it from the outside of a closed guarded premises using special equipment.

Known vibration screens designed to protect acoustic information, in particular, speech from its leakage through acoustic channels, organized with the help of special listening equipment, for example, using laser microphones, protection from recognition of the articulation of a speaking person from a distance, as well as from viewing information displayed on boards, tablets, screens and other similar devices located inside enclosed spaces with the help of special optoelectronic reconnaissance equipment.

For example, the technical solution of the protective screen "Pelena-256" is known, the description of the design of which is published at the link: https://pelena-256.ru/.

The design of the protective screen "Veil-256" allows you to quickly and easily install it on the surface of the window glazing of the room in which the closed event is to take place, as well as quickly dismantle the screen after it is completed.

A disadvantage of the known design is the lack of vibration noise of the structure itself, since masking vibration noise is transmitted through the screen mounting posts only from the window glass, while acoustic information can be read using special devices for picking up acoustic information directly from the window frame and the screen itself.

Also, the technical solution of the vibroshtor in three versions is known: VSh-1, VSh-2 and VSh-2i, the design description of which is published at the link: https://kamerton5.ru/.

The disadvantages of the well-known design vibroshtora are the complexity of its installation, the high cost of its manufacture and the limited level of vibration noise.

As a prototype of the claimed design, a screen-type device for protecting speech information from laser interception, described in the RF patent for utility model No. 202110, publ. 02/02/2021, IPC H03B 29/00, H04K 3/00, according to which the device contains a canvas for covering a window opening, magnetic support type, fixed at one end on the window glass and made with a platform on the other end to rest the canvas on it, with In this case, the canvas is placed in the window opening with support on a magnetic type of support. The device is equipped with metal nickels, made with the possibility of magnetic connection with magnetic-type supports and carrying double-sided adhesive tape on one side. The canvas is made of polystyrene 3-5 mm thick and with a spectral transmittance in the visible and infrared wavelengths of not more than 1%. Supports of magnetic type are made on the side of the end attached to the glass with double-sided adhesive tape for connection with glass, and on the other end - for magnetic connection with the indicated nickels, and the canvas is pressed to the surface of each metal nickel with double-sided adhesive tape.

At the same time, the known device has the disadvantage that the vibration noise of the structure itself is insufficient, since the masking vibration noise is transmitted through the screen mounting racks only from the window glass, while acoustic information can be read using special acoustic information pickup devices directly from the window frame and the screen itself. .

The problem solved with the help of the claimed invention is the insufficiency of vibrational noise provided by known designs of devices and acoustic information protection systems.

The technical result of the proposed technical solution is to increase the level of protection of acoustic information circulating inside the enclosed space while ensuring ease of installation and dismantling of the protective structure.

The specified technical result is achieved using a system for protecting acoustic information, including a vibrating screen with at least one vibration exciter installed on it, which receives a signal from a noise generator, and fasteners are installed on the edges of the vibrating screen, designed to secure it to the window frame, and on the window frame has mating fasteners designed to install a vibration screen.

At the same time, the fastening elements installed on the window frame are interconnected by means of a wire having a connector designed for its connection to the vibration exciter terminal.

The noise generator can transmit a signal to one or more vibration exciters, while each vibration exciter, in turn, transmits vibration-acoustic waves to the vibration screen on which it is installed, as well as to the window frame on which the vibration screen is installed.

Due to this design, acoustic noise is transmitted from the vibration exciter both to the vibration screen and to the window frame, while eliminating the need to install an additional vibration exciter on the window frame.

The proposed design works as follows.

Before holding a closed event, a vibration screen is installed on the window of the room in which it must pass with the help of fasteners, for example, magnetic fasteners, on which at least one vibration exciter is fixed, receiving a signal from a noise generator, in particular, via a radio channel.

The connector of the wire connecting the fastening elements installed on the window frame is connected to the vibration exciter installed on the vibration screen. After that, the noise generator is turned on, which transmits a signal to all vibration exciters connected to it. Due to this, acoustic noise is transmitted not only to the vibration screen, but also to the window frames, thereby providing the maximum possible protection of the protected premises from listening devices. At the same time, the ease of installation and dismantling of the entire protective structure is maintained.

The claimed technical solution is illustrated by images:

Fig. 1 - Scheme of installing magnets on a vibration screen;

Fig. 2 - Scheme for installing magnets on a window frame;

Fig. 3 - Wiring diagram on the vibration screen and the window frame.

Fig. 4 - Scheme of installation of the vibration exciter on the vibration screen.

The figures show an exemplary implementation of a system for protecting acoustic information, including a vibration screen (1) (Fig. 1), on the edges of which, for example, with the help of screws (2) and nuts (3), magnets (4) are installed, designed to fix it on window frame (5), while on the window frame (5) (Fig. 2) are also respectively installed magnets (6) having a polarity opposite to the polarity of the magnets (4), which ensures the mutual attraction of the magnets (4) and (6).

To install magnets (6) on the window frame (5), for example, self-tapping screws (7) are used, for which a metal washer (8) is sequentially put on each self-tapping screw, the required number of plastic washers (9) and a magnet (6) is installed at the end. In this case, the metal washers (8) installed on the window frame (5) are connected to each other using a wire (10) having a branch with a terminal (11) (Fig. 3) intended for its installation in the connector of the vibration exciter (12) installed on a vibration screen (1) (Fig. 4) and receiving a signal from a noise generator (not shown in Fig.). To do this, the wire contacts (10) are clamped between metal washers (8) and plastic washers (9) in contact with them (Fig. 3).

On the vibration screen (1), the vibration exciter (12) can be installed, for example, using a screw (13), while the wire (10) installed on the vibration screen (1) is connected to the vibration exciter (12) using the terminal (11). cocoon frame. For ease of use, the wire (10) can also be placed in a cable channel installed on the window frame (not shown in the figure).

The proposed system works as follows.

Before holding an event related to the need to protect acoustic information from information leakage through vibroacoustic and acoustic channels, for example, using laser microphones, as well as from unauthorized viewing from outside the room using other optoelectronic means of recognizing the articulation of a speaking person, at each window frame of the protected premises is installed with the help of fasteners (for example, magnets) a vibration screen equipped with at least one vibration exciter. Then the connector of the wire connecting the fastening elements of the window frame to the terminal of the vibration exciter is connected, after which the noise generator is turned on, which transmits a signal that serves to mask the acoustic information to the vibration exciter, from which the acoustic waves come both directly to the vibration screen and through the wire to the window frame.

Due to this design, acoustic noise is transmitted not only to the vibration screen, but also to the window frame, which ensures complete protection of acoustic information circulating inside the protected premises.

The inventive system for protecting acoustic information can also be used to protect against viewing information displayed on the screens of technical means inside the protected premises.

Claims (1)

A system for protecting acoustic information, including a vibrating screen with at least one vibration exciter installed on it, which receives a signal from a noise generator, and at the edges of the vibrating screen there are fasteners designed to fasten it to the window frame, and there are mating fastening elements on the window frame, intended for installation of a vibration screen, while the fastening elements installed on the window frame are interconnected using a wire with a connector designed to connect it to the vibration exciter terminal.

Images