CN211656331U - Desktop directional recording equipment - Google Patents

Abstract

The utility model discloses a directional recording equipment of desktop, this equipment include shell, four microphone arrays, circuit board, battery and start key, the shell is the box body, four microphone arrays and start key set up in the upper surface of shell, circuit board and battery set up in inside the shell, four microphone arrays and start key all with the circuit board is connected, the battery gives the circuit board power supply, be provided with main control chip and wireless transmission module on the circuit board. The desktop directional recording equipment utilizes the four-microphone array technology, overcomes the defect that traditional gooseneck conference microphones and other equipment cannot be used in a noisy environment, and is suitable for various scenes.

Description

Desktop directional recording equipment

Technical Field

The utility model relates to a recording technology especially relates to a directional recording equipment of desktop.

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 microphone array technology is gradually applied to various fields such as conference systems, robots, toys, smart homes and the like due to the advantages of speech signal processing such as speech enhancement, speech 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 microphone array technology has a wide market prospect.

In the prior art, a desktop recording device is generally constructed as shown in patent CN200820047618.3, and includes a support rod, an earphone is provided on the top of the support rod, and a suction cup is provided on the bottom of the support rod. Such a microphone requires a wired connection, which greatly reduces its mobility and is inconvenient to install and use. In addition, the microphone recording function in the prior art mainly aims at recording in quiet environment, in some noisy environments, or some special environments involving echoes, noise interference and the like, the existing gooseneck type conference microphone cannot achieve the expected recording effect at all, and cannot use voice recognition to recognize and process the recorded audio.

Disclosure of Invention

An object of the utility model is to provide a directional recording equipment of desktop suitable for different environment.

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 directional recording equipment of desktop, including shell, four microphone arrays, circuit board, battery and start key, the shell is the box body, four microphone arrays and start key set up in the upper surface of shell, circuit board and battery set up in inside the shell, four microphone arrays and start key all with the circuit board is connected, the battery gives the circuit board power supply, be provided with main control chip and wireless transmission module on the circuit board.

In an embodiment, the four-microphone array of the device includes a first microphone, a second microphone, a third microphone, and a fourth microphone, and the first microphone, the second microphone, the third microphone, and the fourth microphone are distributed in a cross shape on the upper surface of the housing.

In one embodiment, the power-on key of the device is disposed at the center of the upper surface.

In one embodiment, the device further comprises an indicator light, and the indicator light is arranged on the upper surface of the shell.

In one embodiment, the battery of the device is a polymer battery.

In an embodiment, the device further comprises a charging interface, and the charging interface is arranged on the side face of the shell.

In an embodiment, the charging interface of the device is a USB TYPE-C interface.

In an embodiment, the wireless transmission module of the device includes a ZigBee transmission module, a bluetooth transmission module, and/or a WiFi transmission module.

The embodiment of the utility model provides a beneficial effect is: the desktop directional recording equipment utilizes the four-microphone array technology, overcomes the defect that traditional gooseneck conference microphones and other equipment cannot be used in a noisy environment, and is suitable for various scenes.

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 an exploded view of an embodiment of the desktop directional recording apparatus of the present invention;

FIG. 2 is a top view of an embodiment of the desktop directional recording apparatus of the present invention;

FIG. 3 is a side view of an embodiment of the desktop directional recording apparatus of the present invention;

FIG. 4 is a circuit diagram of a microphone of an embodiment of the desktop directional recording apparatus of the present invention;

FIG. 5 is a circuit diagram of an indicator light of an embodiment of the desktop directional recording device of the present invention;

FIG. 6 is a circuit diagram of a start key of an embodiment of the desktop directional recording apparatus of the present invention;

fig. 7 is a signal connection diagram of an embodiment of the system of the present invention;

wherein: 1-a housing; 2-a circuit board; 3-a battery; 4-power-on key; 51-a first microphone; 52-a second microphone; 53-third microphone; 54-a fourth microphone; 6-indicator light; 7-charging interface.

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. 1-3, the embodiment of the utility model discloses directional recording equipment of desktop, including shell 1, four microphone arrays, circuit board 2, battery 3 and start key 4, wherein shell 1 is the box body, with stable the placing on the desktop, four microphone arrays and start key 4 set up in the upper surface of shell 1, circuit board 2 and battery 3 set up inside shell 1, four microphone arrays and start key 4 all are connected with circuit board 2, battery 3 supplies power for circuit board 2, is provided with main control chip and wireless transmission module on circuit board 2. The main control chip can adopt a Union department MT8516 chip.

Specifically, the four-microphone array includes a first microphone 51, a second microphone 52, a third microphone 53 and a fourth microphone 54, and the first microphone 51, the second microphone 52, the third microphone 53 and the fourth microphone 54 are distributed on the upper surface of the housing 1 in a cross shape, so as to form a better sound-receiving effect. The circuit connections for either microphone may be as shown in fig. 4.

Those skilled in the art will readily appreciate that algorithms such as beamforming, directional pickup, reverberation suppression, noise reduction, speech enhancement, audio compression, signal amplification, etc. may be built into the host chip based on the Linux system to improve the resulting audio intelligibility.

In a possible embodiment, the power-on key 4 is arranged in the center of the upper surface so as to be conveniently switched, and fig. 6 shows a circuit connection mode of the power-on key 4.

In this embodiment, the device further comprises an indicator light 6 for displaying the on-off state of the device, and the indicator light 6 is disposed on the upper surface of the housing 1. Fig. 5 shows a circuit connection of the indicator lamp 6.

Preferably, the battery 3 is a polymer battery so as to be chargeable and dischargeable. Correspondingly, still including the interface 7 that charges, the interface 7 that charges sets up in the side of shell 1. The charging interface 7 is a USB TYPE-C interface and thus can also be used for data transmission.

The wireless transmission module may be a ZigBee transmission module, a bluetooth transmission module, and/or a WiFi transmission module, in this embodiment, a bluetooth transmission module and a WiFi transmission module, so as to support BL4.2 bluetooth transmission or other one-to-many wireless transmission.

The utility model also discloses a directional recording system of desktop, its signal transmission relation is shown in fig. 7, including any above-mentioned directional recording equipment of desktop 301, still include data server 302 and user terminal, the directional recording equipment of desktop 301 is with the help of wireless transmission module and data server 302 signal connection, data server 302 and user terminal signal connection. 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:

recording by the desktop directional recording device 301, processing the recorded audio, for example, deleting redundant noise, amplifying the audio to be reserved, and compressing the processed audio in combination with wireless transmission flow limitation after the audio processing is completed; the compressed audio is transmitted to the data server 302 together with the device identifier (the device identifier is typically based on the MAC address of the wireless transmission chip 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 through 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.

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 previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

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 (8)

1. A desktop directional recording device, its characterized in that: including shell, four microphone arrays, circuit board, battery and start key, the shell is the box body, four microphone arrays and start key set up in the upper surface of shell, circuit board and battery set up in inside the shell, four microphone arrays and start key all with the circuit board is connected, the battery gives the circuit board power supply, be provided with main control chip and wireless transmission module on the circuit board.

2. The desktop directional recording apparatus of claim 1, wherein: the four-microphone array comprises a first microphone, a second microphone, a third microphone and a fourth microphone, and the first microphone, the second microphone, the third microphone and the fourth microphone are distributed on the upper surface of the shell in a cross shape.

3. The desktop directional recording apparatus of claim 2, wherein: the start-up key is arranged in the center of the upper surface.

4. The desktop directional recording apparatus of claim 1, wherein: still include the pilot lamp, the pilot lamp sets up in the shell upper surface.

5. The desktop directional recording apparatus of claim 1, wherein: the battery is a polymer battery.

6. The desktop directional recording apparatus of claim 5, wherein: still including the interface that charges, the interface that charges set up in the side of shell.

7. The desktop directional recording apparatus of claim 6, wherein: the charging interface is a USB TYPE-C interface.

8. The desktop directional recording apparatus of claim 1, wherein: the wireless transmission module comprises a ZigBee transmission module, a Bluetooth transmission module and/or a WiFi transmission module.

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