CN212850522U - Hidden sound box recording shielding device - Google Patents

Abstract

The utility model relates to a hidden type sound box recording shielding device, which comprises a sound box body and a loudspeaker arranged in the sound box body, a mesh enclosure is fixed on the sound body, a main board positioned behind the mesh enclosure and an emission terminal connected with the main board are fixed in the sound body, the mainboard comprises a remote controller module, a power supply module, a main control module, a signal output module and a Bluetooth module, the remote controller module is electrically connected with the main control module, the power supply module is respectively electrically connected with the main control module and the signal output module, the power supply module supplies power to the main control module to output the electric quantity of the module through a signal, the remote control module gives a signal to the main control module, the main control module provides signals for the signal output module, the signal output module is electrically connected with the transmitting terminal, and the Bluetooth module is electrically connected with a loudspeaker inside the sound body.

Description

Hidden sound box recording shielding device

Technical Field

The utility model relates to a shield technical field especially relates to a hidden audio amplifier recording shield.

Background

With the rapid development of science and technology, the popularization of electronic products, the miniaturization of electronic products, and the threat of personal and public information security are increasing. Some lawbreakers illegally steal personal privacy, business secrets and even national secrets through mobile phones, recording pens or other micro eavesdropping devices with stronger specialties, so that individuals and enterprises suffer economic losses, and even the national security is threatened.

The existing recording shielding device can not adjust the output power, the shape concealment is not good, and the sound emitted by the shielding device can not be covered and is easy to be found.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a hidden audio amplifier recording shielding ware.

The utility model discloses a realize through following technical scheme:

the utility model provides a hidden audio amplifier recording shielding ware, includes sound and sets up the inside loudspeaker of sound, be fixed with the screen panel on the sound, the inside mainboard that is located the screen panel rear that is fixed with of sound and the transmitting terminal who is connected with the mainboard, the mainboard includes remote controller module, power module, host system, signal output module and bluetooth module, remote controller module is connected with the host system electricity, power module is connected with host system and signal output module electricity respectively, power module supplies with host system with signal output module electric quantity, remote controller module gives the host system signal, host system provides the signal and gives signal output module, signal output module is connected with the transmitting terminal electricity, bluetooth module is connected with the inside loudspeaker electricity of sound.

Further, the number of the transmission terminals is 32.

Further, the power module adopts an LM2576 boost chip.

Further, the master control module adopts an msp430f247 chip.

The utility model has the advantages that:

1. the utility model arranges 32 transmitting terminals evenly on the rear side of the metal net to realize visual concealment;

2. the utility model discloses built-in bluetooth receiving module can be in the aspect that the user connects the cell-phone and plays the music file;

3. the back of the product is provided with a power adjusting knob, so that a user can conveniently adjust the size of the recording shielding range;

4. the product provides a music file which is convenient to download for a user, and the music file is perfectly fused with the sound of the recording shielding function during working, so that the function is hidden;

5. the recording shielding function is started in a remote control mode, so that remote operation is facilitated.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the working flow of the present invention;

FIG. 3 is a schematic workflow diagram of an internal module;

FIG. 4 is a circuit diagram of a remote control module;

FIG. 5 is a circuit diagram of a power supply module;

FIG. 6 is a circuit diagram of a master control module;

FIG. 7 is a circuit diagram of a NOT gate;

fig. 8 is a circuit diagram of a signal output module;

in the figure: 1. a sound body; 2. a mesh enclosure; 3. a transmitting terminal; 4. a remote controller module; 5. a power supply module; 6. a main control module; 7. a signal output module; 8. a Bluetooth module; 9. a main board; 10. a power knob.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1, 2 and 3, the utility model comprises a sound equipment body 1 and a loudspeaker arranged inside the sound equipment body 1, wherein a mesh enclosure 2 is fixed on the sound equipment body 1, a main board 9 positioned behind the mesh enclosure 2 and a transmitting terminal 3 connected with the main board 9 are fixed inside the sound equipment body 1, the main board 9 comprises a remote controller module 4, a power module 5, a main control module 6, a signal output module 7 and a bluetooth module 8, the remote controller module 4 is electrically connected with the main control module 6, the power module 5 is respectively electrically connected with the main control module 6 and the signal output module 7, the power module 5 supplies power to the main control module 6 and the signal output module 7, the remote controller module 4 gives a signal to the main control module 6, the main control module 6 provides a signal to the signal output module 7, the signal output module 7 is electrically connected with the transmitting terminal 3, bluetooth module 8 is connected with the inside loudspeaker electricity of sound body 1. The number of the transmission terminals 3 is 32. The power module 5 adopts an LM2576 boosting chip. The master control module 6 adopts an msp430f247 chip. The top of stereo set body 1 still is equipped with the power knob 10 of being connected with the mainboard 9 electricity, and specific work flow is: firstly, an external power supply is converted into proper voltage through an external power supply adapter to supply electric quantity, signals are output to the transmitting terminal 35 through the signal output module 79 by controlling the signal output module 79 through the main control module 68, the power can be adjusted by rotating the power knob 104, the remote control module 4 can receive signals of a remote controller to carry out remote control, a preset music file and a recording shielding signal are played by connecting the mobile phone with the Bluetooth module 8 to form perfect integration, and illegal recording is shielded while music is enjoyed.

The circuit of the remote control module is shown in fig. 4, and the specific connection mode is as follows: the 1-pin level of the J3 is determined by the 2-pin level of the J3, the 1 pin is a high level at ordinary times, the single chip microcomputer does not work, when the remote controller controls the single chip microcomputer to work, the 1 pin and the 4 pin are in short circuit, the single chip microcomputer reads low level, and the single chip microcomputer starts to work.

As shown in fig. 5, the power module 5 has a circuit with the following specific connection modes: the 1 pin of the LM2576 chip is connected with a 12v power supply in series, a C3 and C4 grounding capacitor are connected in parallel, a 4-pin feedback end is connected with C1 and C6 in parallel, a 2-pin output end is connected with the reverse end of a D1 grounding diode in parallel, an L1 inductor is connected in series to output a 3.3v power supply, C6, C1 and C5 grounding capacitors are connected in parallel, and R2 and D2 capacitors are connected in parallel and grounded in series.

As shown in fig. 6, the circuit of the main control module 6 is specifically connected in the following manner: the power supply end of the main control chip U3 is connected with 3.3V voltage and is connected with 3 grounding capacitors (C9-C11) in parallel, the signal input end of the main control chip U3 is connected with a resistor R5 in series, a grounding resistor R6 and another grounding capacitor C17 in parallel, the main control chip U3 is connected with a clock module, a crystal oscillator OSC1 is arranged in the clock module, and two ends of the crystal oscillator OSC1 are respectively connected with one grounding capacitor (C7 and C8).

The circuit diagram of the signal output module 7 is shown in fig. 8, the circuit adopts a not gate circuit to control the mos tube switch, wherein the not gate adopts a 74hc04 chip to convert the level of the single chip microcomputer (as shown in fig. 7), and the specific connection mode is as follows: a plurality of inductance ultrasonic sensors are arranged in fig. 8, the other end of each inductance is connected with the D pole in the N-MOS, wherein one end connected with the resistance is connected with the positive pole of the signal transmitting terminal 354, and the other end connected with the MOS transistor is connected with the negative pole of the signal transmitting terminal 354.

Fig. 7 is composed of a plurality of N-MOS devices and a driver chip, wherein the G pole of each N-MOS device is connected to the output terminal of the driver chip, and the input terminal of the driver chip is connected to the output terminal of the main control chip in the main control module 688.

The utility model arranges 32 transmitting terminals 3 uniformly on the rear side of the metal net to realize visual concealment; the Bluetooth receiving module is also arranged in the mobile phone, so that a user can be connected with the mobile phone to play music files; the product is provided with a power adjusting knob, so that a user can conveniently adjust the size of the recording shielding range; the product provides a music file which is convenient to download for a user, and the music file is perfectly fused with the sound of the recording shielding function during working, so that the function is hidden; the recording shielding function is started in a remote control mode, so that remote operation is facilitated.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (4)

1. The utility model provides a hidden audio amplifier recording shield which characterized in that: including sound equipment and the loudspeaker of setting in sound equipment inside, be fixed with the screen panel on the sound equipment, sound equipment is inside to be fixed with the mainboard that is located the screen panel rear and the transmitting terminal who is connected with the mainboard, the mainboard includes remote control module, power module, host system, signal output module and bluetooth module, remote control module is connected with the host system electricity, power module is connected with host system and signal output module electricity respectively, host system is supplied with signal output module electric quantity to power module, remote control module gives the host system signal, host system provides the signal and gives signal output module, signal output module is connected with the transmitting terminal electricity, bluetooth module is connected with sound equipment inside loudspeaker electricity.

2. The concealed speaker recording screen of claim 1, wherein: the number of the transmission terminals is 32.

3. The concealed speaker recording screen of claim 1, wherein: the power module adopts an LM2576 boosting chip.

4. The concealed speaker recording screen of claim 1, wherein: the master control module adopts an msp430f247 chip.

Images