Negative pressure health care device with multiple microphones

Abstract

The utility model discloses a negative pressure health care device with multiple microphones, which comprises an upper shell, a negative pressure cavity and a circuit assembly, the negative pressure cavity is connected below the upper shell, the upper shell comprises a control panel and an element accommodating cavity, a plurality of microphones are arranged in the element accommodating cavity, and the circuit assembly is connected with the control panel. The circuit assembly comprises a circuit board, a negative pressure motor and a loudspeaker, a logical algorithm circuit and an instruction identification circuit are arranged on the circuit board, the logical algorithm circuit can process audio signals collected by the microphones and eliminate working noise, and meanwhile, an instruction identification unit identifies specific instructions in the audio signals and sends the instructions to the loudspeaker. And the negative pressure motor and the loudspeaker are controlled to work. According to the utility model, the problem that an audio instruction cannot be accurately received due to working noise is avoided, and a big problem of such products in the voice control process is overcome, so that the product can accurately carry out voice control, and the experience feeling of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a health care product field especially, it relates to a multi microphone's negative pressure health care device. BACKGROUND

[0002] The existing health care products often increase the function of voice control to enhance the experience, to meet the demand of intelligentization and automation, but there is no voice control negative pressure health care device on the market, its main reason is that the negative pressure health care device often accompanies strong working noise and vibration when working, and then the sound receiving effect of microphone is influenced, so that the voice instruction sent can not be accurately conveyed.

[0003] In order to solve the above problems, the present scheme designs a multi microphone's negative pressure health care device. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the utility model embodiment provides a multi microphone's negative pressure health care device, including: upper shell, negative pressure cavity and circuit assembly.

[0005] The negative pressure cavity is connected below the upper shell, the upper shell includes control panel and internal element accommodating cavity, the control panel is equipped with two or more than two sound transmission holes, a plurality of sound transmission holes are communicated with sound receiving groove behind, and the sound receiving groove is equipped with microphone;

[0006] The circuit assembly is arranged in the element accommodating cavity, including: circuit board, negative pressure motor and loudspeaker, the circuit board has logic algorithm circuit and instruction recognition unit, the input end of the logic algorithm circuit is connected with a plurality of microphones, the output end of the logic algorithm circuit is connected with the instruction recognition unit, and then the instruction recognition unit can recognize the audio signal after noise reduction processing of the logic algorithm circuit and send control signal to control the negative pressure motor.

[0007] Among them, the negative pressure cavity top is equipped with negative pressure through -hole, and the negative pressure motor is communicated with the negative pressure cavity through the negative pressure through -hole, and then the negative pressure can be generated in the negative pressure cavity.

[0008] Among them, the element accommodating cavity is also equipped with power supply, and the power supply is electrically connected with the circuit board.

[0009] Among them, the lower part of the negative pressure cavity is equipped with silica gel skin.

[0010] Among them, the control panel is equipped with button.

[0011] Among them, the control panel is equipped with indicator.

[0012] The utility model discloses an embodiment has the following beneficial effects: ①Multiple sound holes on the control panel have different orientations, and the sound holes are all connected with sound collecting grooves, and multiple sound collecting grooves are respectively provided with microphones to collect sound in multiple channels. ②The logic algorithm circuit is used for inverting and superimposing the audio signal collected in multiple channels to accurately remove noise, thereby avoiding the problem that voice instructions cannot be accurately received due to the working noise of the negative pressure motor. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is the schematic diagram of the utility model;

[0014] Fig. 2 is the sectional view of the utility model;

[0015] Fig. 3 is the flowchart of the multi-microphone sound collection and audio signal processing of the utility model. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be described in further detail below in combination with the drawings.

[0017] Embodiment 1

[0018] As shown in Figs. 1-3 , a multi-microphone negative pressure health care device comprises an upper shell 1, a negative pressure cavity 2 and a circuit assembly 3.

[0019] The negative pressure cavity 2 is connected below the upper shell 1, the upper shell 1 comprises a control panel 11 and an internal element accommodating cavity 12, the control panel 11 is provided with two or more sound holes 111, a plurality of sound holes 111 are connected with sound collecting grooves behind, and the sound collecting grooves are provided with microphones 13.

[0020] In this embodiment, the number of sound holes is two, so two sound collecting grooves are connected, and the two sound collecting grooves are provided with microphones.

[0021] As shown in Fig. 2 , Fig. 3 , the circuit assembly 3 is arranged in the element accommodating cavity 12 and comprises a circuit board 31, a negative pressure motor 32 and a loudspeaker 33, the circuit board 31 is provided with a logic algorithm circuit 311 and an instruction recognition unit 312, the input end of the logic algorithm circuit 311 is connected with the microphone 13, the output end of the logic algorithm circuit 311 is connected with the instruction recognition unit 312, and then the instruction recognition unit can recognize the audio signal after noise reduction processing by the logic algorithm circuit 311 and send a control signal to control the negative pressure motor 32 and the loudspeaker 33 to work.

[0022] The logic algorithm circuit 311 receives the audio signals transmitted by the several microphones to two channels, and then reverses the phase of one of the channels, superimposes the audio signals of the two phases, accurately eliminates the noise, and sends the processed audio signals to the instruction recognition unit 312.

[0023] It should be particularly pointed out that the logic algorithm circuit 311 appearing in the present scheme is a prior art, which is commonly used in the field of audio processing, such as noise reduction earphones and the like, and therefore the present scheme will not be repeated.

[0024] More preferably, the top of the negative pressure cavity 2 is provided with a negative pressure through hole 21, and the negative pressure motor 32 is connected to the negative pressure cavity 2 through the negative pressure through hole 21, so as to generate negative pressure in the negative pressure cavity 2.

[0025] More preferably, the bottom of the negative pressure cavity 2 is provided with a silica gel sheath 22, so as to ensure the sealing of the negative pressure cavity 2.

[0026] More preferably, the control panel 11 is provided with a button 15, so as to control each execution component such as the negative pressure motor 32 and the loudspeaker 33 through the button.

[0027] More preferably, the control panel 11 is provided with an indicator lamp 16 for indicating the working state of the negative pressure health care device.

[0028] Of course, the above embodiments only illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any modification made according to the spirit and essence of the main technical scheme of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-microphone negative pressure health care device, characterized by, The utility model relates to a negative pressure cavity (2) and circuit assembly (3) are contained in the upper shell (1) of the negative pressure cavity (2) and circuit assembly (3) are connected to the lower of the upper shell (1), the upper shell (1) includes control panel (11) and the element containing cavity (12) in, control panel (11) is equipped with two or more than the sound hole (111), a plurality of sound hole (111) rear intercommunication is equipped with the sound collection groove, the sound collection groove is equipped with the microphone (13) in. The circuit assembly (3) is arranged in the element containing cavity (12) and includes a circuit board (31), a negative pressure motor (32) and a loudspeaker (33), the circuit board (31) has a logic algorithm circuit (311) and an instruction recognition unit (312), the input end of the logic algorithm circuit (311) is connected with a plurality of microphones (13), the output end of the logic algorithm circuit (311) is connected with the instruction recognition unit (312), and then the instruction recognition unit can identify the audio signal after the noise reduction processing of the logic algorithm circuit (311) and send a control signal to control the negative pressure motor (32) to work. The top of the negative pressure cavity (2) is provided with a negative pressure through hole (21), and the negative pressure motor (32) is connected with the negative pressure cavity (2) through the negative pressure through hole (21), so that negative pressure can be generated in the negative pressure cavity (2). The element containing cavity (12) is further provided with a power supply (34), and the power supply (34) is electrically connected with the circuit board (31).

2. The multi-microphone negative pressure health care device according to claim 1, wherein, The lower part of the negative pressure cavity (2) is provided with a silica gel sheath (22).

3. The multi-microphone negative pressure health care device of claim 1, wherein, The control panel (11) is provided with a button (15).

4. The multi-microphone negative pressure health care device of claim 1, wherein, The control panel (11) is provided with an indicator light (16).

5. The multi-microphone negative pressure health care device of claim 1, wherein, ​ 6. The multi-microphone negative pressure health care device of claim 1, wherein, ​

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