CN210807630U

CN210807630U - Portable directional pickup equipment and system

Info

Publication number: CN210807630U
Application number: CN201921998291.2U
Authority: CN
Inventors: 唐浩元; 鄢戈; 王佳珺; 郭成林; 何耀运
Original assignee: Suzhou Qdreamer Network Technology Co ltd
Current assignee: Suzhou Qdreamer Network Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-06-19
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a portable directional pickup equipment and system, this equipment include the shell, be provided with first microphone, second microphone, battery, circuit board and switch in the shell, first microphone and second microphone set up in the front end of shell, switch set up in the top of shell, first microphone, second microphone and switch all with circuit board electric connection, be provided with chip and wireless transmission module on the circuit board, the battery gives first microphone, second microphone and circuit board power supply. Compared with the prior art, the portable directional pickup equipment utilizes the dual-microphone array technology, realizes directional reception, and overcomes the defect that equipment such as a recording pen cannot be used in a noisy environment, so that the portable directional pickup equipment can be suitable for various indoor and outdoor scenes.

Description

Portable directional pickup equipment and system

Technical Field

The utility model relates to a recording technology especially relates to a portable directional pickup equipment and system.

Background

Microphone array technology began in the seventies of the last century, after which fundamental research in the fields of acoustics, algorithms, and the like, has been conducted for a long time. With the maturity of related basic research and the arrival of the era of internet of things in recent years, the directional pickup technology is gradually applied to various fields such as conference systems, robots, toys, smart homes and the like due to the advantages of voice signal processing such as voice enhancement, voice recognition, sound source positioning, airspace filtering and the like, a new human-computer interaction entrance is provided for traditional products, the production and the life of people are greatly facilitated, and the directional pickup technology has a wide market prospect.

Recording related products in the market at present mainly use a recording pen. For example, patent CN201420657293.6 discloses a recording pen with a built-in dual microphone, comprising: the recording pen body, fall the sound microphone, receive and record sound microphone, waterproof protection piece, sound loudspeaker and the dual-core chip of making an uproar, this internal waterproof protection piece that is provided with of recording pen, the one end of waterproof protection piece be provided with fall the sound microphone and receive and record the sound microphone, the other end of waterproof protection piece be provided with sound loudspeaker and the dual-core chip of making an uproar of making an upr. The recording equipment mainly aims at recording in a quiet environment, noise reduction is mainly achieved through a noise reduction microphone, an expected recording effect cannot be achieved in some noisy environments or some special environments involving echo, noise interference and the like, and voice recognition cannot be used for recognizing and then processing recorded audio.

Therefore, how to provide a portable directional sound pickup apparatus and system suitable for various scenes becomes a problem to be solved by those skilled in the art.

Disclosure of Invention

An object of the utility model is to provide a portable directional adapter equipment and system suitable for multiple scene.

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

According to the utility model discloses an aspect provides a portable directional pickup equipment, including shell, two microphone arrays, battery, circuit board and switch, two microphone arrays include first microphone and second microphone, first microphone and second microphone set up in the preceding terminal surface of shell, switch set up in the top of shell, battery and circuit board set up in the shell, first microphone, second microphone and switch all with circuit board electric connection, be provided with chip and wireless transmission module on the circuit board, the battery gives first microphone, second microphone and circuit board power supply.

In one embodiment, the first microphone and the second microphone of the portable directional sound pickup apparatus are vertically distributed on the front end surface of the housing.

In one embodiment, the wireless transmission module of the portable directional sound pickup apparatus includes a Zig Bee transmission module, a bluetooth transmission module, and/or a WiFi transmission module.

In one embodiment, an indicator light is disposed on a front surface of the housing of the portable directional sound pickup apparatus, and the indicator light is electrically connected to the circuit board.

In an embodiment, a battery cavity is disposed in the housing of the portable directional sound pickup apparatus, the battery is disposed in the battery cavity, and a battery spring is disposed at the bottom of the battery cavity.

In one embodiment, the battery of the portable directional sound pickup apparatus is a polymer battery.

In one embodiment, a clip is disposed on the back of the housing of the portable directional sound pickup apparatus, and one end of the clip is fixedly connected to the housing.

According to another aspect of the present invention, there is also provided a directional sound pickup system, including any one of the above-mentioned portable directional sound pickup apparatus, a data server and a user terminal, wherein the portable directional sound pickup apparatus is in signal connection with the data server by means of the wireless transmission module, and the data server is in signal connection with the user terminal.

In an embodiment, the user terminal of the directional pickup system includes a WEB-end device and/or a mobile-end device.

The embodiment of the utility model provides a beneficial effect is: compared with a recording pen in the prior art, the portable directional pickup equipment realizes directional reception by using a dual-microphone array technology, overcomes the defect that equipment such as the recording pen cannot be used in a noisy environment, and can be suitable for various indoor and outdoor scenes. In addition, this directional recording system makes the language collection simple, convenient with directional recording equipment and data server and user terminal connection to can help will regard as the entry of big data acquisition with pronunciation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

The above features and advantages of the present invention will be better understood upon reading the detailed description of embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.

FIG. 1 is a schematic perspective view of an embodiment of a portable directional sound pickup apparatus of the present invention;

FIG. 2 is an exploded schematic view of an embodiment of the portable directional sound pickup apparatus of the present invention;

fig. 3 is a schematic diagram of the signal connection of the directional sound pickup system of the present invention;

FIG. 4 is a circuit diagram of a chip of an embodiment of the portable directional sound pickup apparatus of the present invention;

fig. 5 is a circuit diagram of a first microphone matrix of an embodiment of the portable directional sound pickup apparatus of the present invention;

FIG. 6 is a circuit diagram of an indicator light of an embodiment of the portable directional radio of the present invention;

fig. 7 is a circuit diagram of a power switch of the portable directional radio of the present invention.

Wherein: 1-a housing; 11-a front panel; 12-a rear panel; 2-a first microphone; 3-a second microphone; 4-power switch; 5-a circuit board; 6-a battery; 7-battery spring plate; 8-an indicator light; 9-a clip; 301-directional sound pickup apparatus; 302-a data server; 303-mobile end equipment; 304-WEB side equipment.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be understood as imposing any limitation on the scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2, the embodiment of the present invention discloses a portable directional sound pickup apparatus, which includes a housing 1, the housing 1 may include a front panel 11 and a rear panel 12, the front panel 11 and the rear panel 12 are connected to form a containing cavity inside, a slot for setting a first microphone 2 and a second microphone 3 is provided on the inner side of the front panel 11, and a fixing slot for containing a power switch 4 is further provided on the upper end of the front panel 11. The circuit board 5 and the battery 6 are arranged inside the shell 1, the first microphone 2 and the second microphone 3 are arranged in the clamping groove and electrically connected with the circuit board 5, and the battery 6 supplies power to the first microphone 2, the second microphone 3 and the circuit board 5. The power switch 4 is electrically connected with the battery 6 and the circuit board 5, so that the on-off of the equipment can be controlled. The power switch 4 may be a lateral toggle switch, and the circuit thereof may be as shown in fig. 7.

The circuit board 5 is provided with a chip and a wireless transmission module, and the chip is preferably a Unicode MT8516 chip. The first microphone 2 and the second microphone 3 are controlled by a chip to realize directional sound pickup of the double-array microphone. Compared with the prior art, the directional pickup effect of the double-array microphone is better, and the dual-array microphone can be suitable for various indoor and outdoor scenes.

Fig. 4 is a circuit structure diagram of the embodiment of the present invention, because of the limitation of the picture size, some characters are not clear enough, but the characters in the diagram will not affect the understanding of those skilled in the art, as shown in fig. 4, the chip is connected with the first microphone 2 and the second microphone 3 through pins, fig. 5 shows the circuit connection relationship of the first microphone 2, and the matrix circuit of the second microphone 3 is consistent with the matrix circuit of the first microphone 2.

As will be readily understood by those skilled in the art, algorithms such as beamforming, directional pickup, reverberation suppression, noise reduction, speech enhancement, audio compression, signal amplification, etc., may be built into the chip based RTOS system to improve the clarity of the audio obtained. These algorithms are mature technologies in the field of communications, and are implemented in many ways, so they are not described in detail. Through the technologies of noise suppression, signal amplification and the like, the power consumption requirement of the equipment can be greatly reduced by combining the audio compression and decompression, so that the outdoor recording requirement can be met.

The wireless transmission module is used for transmitting the received audio data to the receiving end, and the wireless transmission module can be a ZigBee transmission module, a Bluetooth transmission module and/or a WiFi transmission module, in the embodiment, a southern silicon valley WiFi chip module and a Bluetooth transmission module are adopted, so that BL4.1 Bluetooth transmission or other one-to-many wireless transmission modules can be supported.

In this embodiment, the front surface of the housing 1 is provided with an indicator light 8 for displaying the working state of the device, and fig. 6 shows the circuit connection structure of the indicator light 8, and the indicator light 8 is electrically connected with the circuit board 5. When the first microphone 2 and the second microphone 3 are in an operating state, the indicator lamp 8 is on, and when the first microphone 2 and the second microphone 3 are not in operation, the indicator lamp 8 is off.

In this embodiment, the battery 6 is a polymer battery to ensure the endurance time, the battery 6 is disposed in a battery cavity in the housing, and a battery elastic sheet 7 is disposed at the bottom of the battery cavity to connect the battery. Correspondingly, a battery charging chip of a lithium battery of the Beiling BL4056 is arranged on the circuit board 5 and used for controlling the battery.

Preferably, in order to fix the portable directional sound pickup apparatus at the collar, the waist of trousers, etc., a clip 9 may be further disposed on the back of the housing 1, one end of the clip 9 is fixedly connected with the housing 1, and the clip is clamped at the collar, etc. by the elasticity of the clip 9. Of course, the clamping piece 9 can be replaced by a hook, a hanging rope and the like, and the description is omitted.

The patent also discloses a directional sound pickup system, the signal transmission relationship of which is shown in fig. 3, and the directional sound pickup system comprises the portable directional sound pickup device 301 in any one of the above embodiments, and further comprises a data server 302 and a user terminal, wherein the portable directional sound pickup device 301 is in signal connection with the data server 302, and the data server 302 is in signal connection with the user terminal. The data server 302 may be a local server or may be installed in the cloud. The user terminal includes a WEB-side device 304 and/or a mobile-side device 303, which may be, for example, a mobile phone, a tablet computer, a wearable device, a notebook computer, and the like.

The working process of the system is as follows:

the portable directional sound pickup device 301 records, processes the recorded audio, for example, deleting redundant noise and amplifying the audio to be retained, and compresses the processed audio in combination with the flow limitation of wireless transmission after the audio processing is completed; the compressed audio is transmitted to the data server 302 along with the device identification (the MAC address of the wireless transmission module on which the device identification is typically based is used as the device unique code).

The data server 302 receives the audio and the device identifier through the wireless transmission module, identifies the decompressed audio, sorts and labels the identified data text, combines the device identifier of the device end and matches with the requirements of the user terminal to form a corresponding relationship between the device identifier and the device identifier of the user end, and sends the processed audio or the related data to the user together according to the corresponding relationship. It is ensured that a user in relation to the corresponding device can receive the corresponding audio or data.

After receiving the corresponding recording information, the user terminal corresponding to the device identifier displays the audio and text recorded by the directional pickup device end on the WEB-side device 303 or the mobile-side device 304, and forms a set of complete records by combining the organized data including information such as date and place; after the corresponding audio is subjected to voice analysis, the audio can be stored in a related specified file library, and a set of complete NLP semantic library is formed by continuous accumulation and arrangement.

The application scene of the system can be intelligent teaching, meeting record, medical consultation record and the like, and through continuous accumulation and sedimentation, the development of artificial intelligence can be better promoted in the future. For example: during class background inquiry and class-taking, students can participate in classroom interaction, the actual interaction efficiency is read in the morning, and the parent mobile phone can also observe the content and the result of class-taking of children in real time. During a conference, the audio is uploaded to the server through recording, and a conference summary is generated at a WEB side, so that a set of complete conference summary can be generated by one key. The quality and speed of the conference recording are improved. The system is also applied to hospitals, collects the question and answer records of doctors and patients, and processes the question and answer records in the background to form a complete set of NLP system in the aspect of medical treatment.

Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., A and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above description is only a preferred example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A portable directional sound pickup apparatus, characterized in that: including shell, two microphone arrays, battery, circuit board and switch, two microphone arrays include first microphone and second microphone, first microphone and second microphone set up in the preceding terminal surface of shell, switch set up in the top of shell, battery and circuit board set up in the shell, first microphone, second microphone and switch all with circuit board electric connection, be provided with chip and wireless transmission module on the circuit board, the battery gives first microphone, second microphone and circuit board power supply.

2. The portable directional sound pickup apparatus of claim 1, wherein: the first microphone and the second microphone are vertically distributed on the front end face of the shell.

3. The portable directional sound pickup apparatus of claim 1, wherein: the wireless transmission module comprises a ZigBee transmission module, a Bluetooth transmission module and/or a WiFi transmission module.

4. The portable directional sound pickup apparatus of claim 1, wherein: the front surface of the shell is provided with an indicator light which is electrically connected with the circuit board.

5. The portable directional sound pickup apparatus of claim 1, wherein: a battery cavity is formed in the shell, the battery is arranged in the battery cavity, and a battery elastic sheet is arranged at the bottom of the battery cavity.

6. The portable directional sound pickup apparatus of claim 5, wherein: the battery is a polymer battery.

7. The portable directional sound pickup apparatus of claim 1, wherein: the back of the shell is provided with a clamping piece, and one end of the clamping piece is fixedly connected with the shell.

8. A directional sound pickup system, characterized by: the directional pickup device comprises the directional pickup device as claimed in any one of claims 1 to 7, a data server and a user terminal, wherein the directional pickup device is in signal connection with the data server by means of the wireless transmission module, and the data server is in signal connection with the user terminal.

9. The directional sound pickup system of claim 8, wherein: the user terminal comprises WEB terminal equipment and/or mobile terminal equipment.