CN219085410U

CN219085410U - Multimedia integrated machine

Info

Publication number: CN219085410U
Application number: CN202320787589.9U
Authority: CN
Inventors: 苏培勇; 薛杰; 董心宇
Original assignee: Anhui Zhuozhi Education Technology Co ltd
Current assignee: Anhui Zhuozhi Education Technology Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-05-26
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses a multimedia integrated machine, which comprises: the system comprises a main screen body and at least one auxiliary screen body, wherein the main screen body comprises a main screen, a switch, a first main control board, an OPS host, a wireless internet of things gateway and a multimedia transmission assembly, and each auxiliary screen body comprises an auxiliary screen and a second main control board; the wireless internet of things gateway comprises a wired communication module and a wireless communication module, the wired communication module is in wired communication with the OPS host and the switch respectively, the wireless communication module is used for being in wireless communication with external equipment, the switch is used for being externally connected with the network camera and the server, and the wireless internet of things gateway is configured to receive control signals sent by the OPS host or the server through the switch and control the external equipment according to the control signals. The multimedia integrated machine integrates recording and broadcasting control, internet of things control and information release into a system, and does not need additional API interface docking and debugging, so that the cost of user installation and operation and maintenance is reduced.

Description

Multimedia integrated machine

Technical Field

The utility model relates to the technical field of Internet of things, in particular to a multimedia integrated machine.

Background

The multimedia integrated machine is a display device with an operating system built in a liquid crystal screen and realizing a touch control function through an infrared technology or a capacitance technology. Touch control integrated machines have been widely used in education and business fields.

In educational scenario use, only one touch controllable display device is insufficient to meet the user's use needs. The teacher needs to record video of lesson, needs online living broadcast classroom, needs the switch of the light air conditioner in the control teaching room. In the related art, a recording and broadcasting system (including a recording and broadcasting host, a pickup microphone, a camera for recording teacher pictures and a camera for recording student pictures), a wireless internet of things central control and a wireless internet of things receiving end are installed in a classroom. These devices need to be connected to a multimedia all-in-one machine. The simultaneous installation of these devices would lead to the following problems:

1. the equipment belongs to different manufacturers, the API has respective standards, and the equipment needs to be adjusted in succession, thereby increasing the time and labor cost.

2. When the equipment is installed and constructed, a liquid crystal integrated machine, a recording and broadcasting system and a wireless internet of things central control system are required to be installed, and the installation is complicated.

3. The maintenance of these devices requires the use of the manpower and materials of the school.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the utility model aims to provide a multimedia all-in-one machine which integrates recording and broadcasting control, internet of things control and information release into a system without additional API interface docking and debugging, thereby reducing the cost of user installation and operation and maintenance.

To achieve the above object, a first aspect of the present utility model provides a multimedia all-in-one machine, including: the system comprises a main screen body and at least one auxiliary screen body, wherein the main screen body comprises a main screen, a switch, a first main control board, an OPS host, a wireless internet of things gateway and a multimedia transmission assembly, and each auxiliary screen body comprises an auxiliary screen and a second main control board;

the wireless internet of things gateway comprises a wired communication module and a wireless communication module, wherein the wired communication module is in wired communication with the OPS host and the switch respectively, the wireless communication module is used for wirelessly communicating with external equipment, the switch is used for externally connecting a network camera and a server, and the wireless internet of things gateway is configured to receive a control signal sent by the OPS host or the server through the switch and control the external equipment according to the control signal;

the main screen is connected with the first main control board, the auxiliary screen is connected with the corresponding second main control board, the first main control board is connected with the multimedia transmission assembly, the OPS host is respectively connected with the switch, the first main control board and the second main control boards, and is configured to receive first video data collected by the network camera through the switch, receive second video data and audio data transmitted by the multimedia transmission assembly through the first main control board, process the first video data, the second video data and the audio data, send processing results to the main screen through the first main control board, send processing results to the corresponding auxiliary screen through the second main control boards, and play and record broadcasting.

In addition, the multimedia integrated machine of the utility model can also have the following additional technical characteristics:

in some examples, the wired communication module includes an RJ45 interface, a USB interface, an IO interface, and a UART interface, where the RJ45 interface is connected to the switch, the USB interface is connected to the OPS host, the IO interface of the wired communication module is connected to a plurality of IO interfaces of the first main control board, and the UART interface of the wired communication module is connected to a plurality of UART interfaces of the first main control board, where the plurality of IO interfaces of the first main control board is further connected to one IO interface of the second main control board, and the plurality of UART interfaces of the first main control board is further connected to one UART interface of the second main control board, so as to implement multi-screen interaction.

In some examples, the primary screen and the secondary screen each employ a liquid crystal touch control screen for playing video and receiving touch control signals, and the OPS host includes an OPS interface, a plurality of HDMI OUT interfaces, a plurality of USB3.0 interfaces, and a plurality of RS232 interfaces; wherein,,

the OPS interface of the OPS host is connected with the OPS interface of the first main control board to transmit video stream or touch control signals; the multiple HDMI OUT interfaces of the OPS host are respectively connected with one HDMI IN interface of the multiple second main control boards to transmit video streams; the multiple USB3.0 interfaces of the OPS host are connected with the multiple USB TOUCH interfaces of the second main control board to transmit the TOUCH control signals; and a plurality of RS232 interfaces of the OPS host are respectively connected with a plurality of RS232 interfaces of the second main control board so as to transmit control instructions.

In some examples, the OPS host includes: a first OPS socket, a first processor (i.e., edge services module), and a second processor (i.e., X86), the OPS socket including an OPS interface of the OPS host;

the first processor comprises an HDMI IN interface used for being connected with a video input, an RJ45 interface used for being connected with the switch, a Line IN interface used for being connected with an audio input and a Line OUT interface used for being connected with an audio output, and the first processor is configured to realize recording and broadcasting;

the second processor comprises a plurality of HDMI OUT interfaces used for being connected with a plurality of second main control boards, a plurality of USB3.0 interfaces used for being connected with a plurality of second main control boards, RJ45 interfaces used for being connected with the switch, an audio input Line IN and an audio output Line OUT interface.

IN some examples, the multimedia transmission component includes a local camera and a sound pickup device, the first main control board includes a second OPS socket connected to the first OPS socket, an earphone output interface for externally connecting headphones, a USB switch connected to the local camera, an HDMI OUT interface connected to the OPS host, an HDMI IN interface connected to the OPS host, an RJ45 interface connected to the switch, a USB Touch interface connected to transmit Touch control signals, a USB 2.0 interface connected to data transmission, a Line IN interface connected to the sound pickup device, a coaxial output interface connected to audio, an RS232 interface connected to transmit control instructions, and a Debug interface connected to transmit Debug signals, and a USB Touch interface and a liquid crystal drive interface connected to the main screen, wherein the USB switch is further connected to the USB interface of the second processor.

In some examples, the main screen body further includes a first housing, wherein the first main control board, the OPS host, the wireless internet of things gateway, and the multimedia transmission component are all integrated in the first housing, a first side panel of the first housing is provided with a part of an interface of the OPS host, and a second side panel of the first housing is provided with a part of an interface of the first main control board to be externally connected with a network cable, an HDMI cable, a USB TOUCH cable, a serial port cable, and the sound pickup device;

the auxiliary screen body further comprises a second shell, wherein the second main control board is integrated in the second shell, and a first side panel of the second shell is provided with a part of interfaces of the second main control board so as to be externally connected with an HDMI line, a USB TOUCH line and a serial port line.

In some examples, the main screen and the auxiliary screen are respectively provided with an on-off button and/or a status indicator lamp, the on-off button is connected with a corresponding main control board for realizing on-off control of the multimedia all-in-one machine, and the status indicator lamp is connected with the corresponding main control board for indicating the working status of the multimedia all-in-one machine.

In some examples, the first main control board further includes a USB3.0 interface and a USB TypeC interface disposed on the front panel of the first housing, where the USB3.0 interface and the USB TypeC interface are configured to expand the storage unit.

In some examples, the wireless communication module comprises a bluetooth communication module, wherein the external device comprises one or more of a mobile terminal, an illuminating lamp, an air conditioner, a curtain and an environment sensor, and the OPS host is further configured to receive a control signal of the mobile terminal through the wireless internet of things gateway and control a corresponding screen through a main control board according to the control signal.

The multimedia integrated machine integrates recording and broadcasting control, internet of things control and information release into a system, and does not need additional API interface docking and debugging, thereby reducing the cost of user installation and operation and maintenance.

Drawings

FIG. 1 is a block diagram of a multimedia all-in-one machine according to one embodiment of the present utility model;

FIG. 2 (a) is a block diagram of an OPS host according to an embodiment of the utility model;

fig. 2 (b) is a block diagram of a first main control board according to an embodiment of the present utility model;

FIG. 2 (c) is a block diagram of the secondary screen of one embodiment of the present utility model;

FIG. 2 (d) is a block diagram of the switch of one embodiment of the present utility model;

FIG. 2 (e) is a block diagram of a wireless Internet of things gateway according to one embodiment of the utility model;

FIG. 2 (f) is a block diagram of a power module according to one embodiment of the utility model;

fig. 2 (g) is a block diagram of an infrared amplifying module according to an embodiment of the present utility model;

FIG. 3 is a block diagram of a wireless Internet of things unit according to one embodiment of the utility model;

FIG. 4 is a schematic diagram of an interface of a multimedia all-in-one machine according to one embodiment of the utility model;

fig. 5 is a block diagram of a three-screen interactive unit according to an embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements including like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The multimedia all-in-one machine according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

Fig. 1 is a block diagram of a multimedia all-in-one machine according to an embodiment of the present utility model.

As shown in fig. 1, the multimedia all-in-one machine 100 includes: the main screen body 101 and at least one auxiliary screen body 102, the main screen body 101 includes main screen 103, switch 104, first main control board 105, OPS host computer 106, wireless thing networking gateway 107 and multimedia transmission subassembly 108, and every auxiliary screen body 102 all includes auxiliary screen 109 and second main control board 1000.

The wireless internet of things gateway 107 comprises a wired communication module 1071 and a wireless communication module 1072, the wired communication module 1071 is in wired communication with the OPS host 106 and the switch 104 respectively, the wireless communication module 1072 is used for wirelessly communicating with an external device, the switch 104 is used for externally connecting a network camera and a server, and the wireless internet of things gateway 107 is configured to receive a control signal sent by the OPS host 106 or the server through the switch 104 and control the external device according to the control signal.

The main screen 103 is connected with the first main control board 105, the auxiliary screen 109 is connected with the corresponding second main control board 1000, the first main control board 105 is connected with the multimedia transmission assembly 108, the OPS host 106 is respectively connected with the switch 104, the first main control board 105 and each second main control board 1000, and is configured to receive first video data collected by the network camera through the switch 104, receive second video data and audio data transmitted by the multimedia transmission assembly 108 through the first main control board 105, process the first video data, the second video data and the audio data, send the processing results to the main screen 103 through the first main control board 105, send the processing results to the corresponding auxiliary screen 109 through each second main control board 1000, and play the video data and the audio data to realize recording and playing.

In this embodiment, as shown in fig. 2 (d), the switch 104 is connected to multiple video sources through a network for transmitting or acquiring video stream signals, and the wireless internet of things 107 is connected to the switch 104 through an RJ45 interface as shown in fig. 2 (e).

The multimedia integrated machine integrates recording and broadcasting control, internet of things control and information release into a system, and does not need additional API interface docking and debugging, so that the cost of user installation and operation and maintenance is reduced.

In some embodiments, as shown in fig. 2 (a), the OPS host 106 includes: the OPS comprises a first OPS socket, a first processor and a second processor, wherein the OPS socket comprises an OPS interface of an OPS host.

The first processor includes an RJ45 interface for connecting to a video input HDMI IN interface, for connecting to a switch 104, for connecting to an audio input Line IN interface, and for connecting to an audio output Line OUT interface, the first processor being configured to implement recording and playback.

The HDMI IN interface is used for connecting a computer and inputting video streams of computer pictures; the HDMI OUT interface is used for being connected with a computer and outputting pictures of the multimedia all-in-one machine.

Specifically, the first processor may be deployed on a Linux system, where the first processor is used as an edge service module to receive video streams and audio streams from the second processor and teacher teaching video streams and audio streams of the webcam, and the integrated video streams are distributed by the first processor and sent to the receiving end server for decoding. The first processor is connected with an independent storage unit and also bears the tasks of decoding, recording and storing the video stream.

The first processor may employ an RK3588 processing chip, which is a high-performance, low-power application processor chip, with multiple high-performance hardware processing engines built in, supporting 8k 60fps h.265 and VP9 decoders, 8k 30fps h.264 decoders, and 4k 60fps AV1 decoders; also supported are 8K 30fps H.264 and H.265 encoders, high quality JPEG encoder/decoders, specialized image pre-processors and post-processors. RK3588 has high performance 4 channel external memory interfaces (LPDDR 4, LPDDR4X, LPDDR 5), maximum memory support 32G.

The second processor includes a plurality of HDMI OUT interfaces for connecting the plurality of second main control boards 1000, a plurality of USB3.0 interfaces for connecting the plurality of second main control boards 1000, an RJ45 interface for connecting the switch 104, a connection audio input Line IN, and a connection audio output Line OUT interface.

Specifically, the second processor may be deployed on a Windows system, and a recording and broadcasting program is run on the second processor, so that two paths of video streams and audio streams of the operation interface of the camera and the multimedia integrated machine are encoded and transmitted to the first processor. The second processor is also connected to an independent memory unit.

The second processor can adopt an I5-level processor chip to support 4-core 8-thread, the maximum memory supports 64G, and the storage unit supports a mechanical hard disk and a solid state hard disk; 3 paths of videos are output to 3 third processors through the GPU respectively, and 3 paths of touch screen inputs are supported.

In this embodiment, the first processor and the second processor may transmit data through the switch to process the business logic.

Wherein the third processor comprises: earphone output interface, HDMI OUT interface, a plurality of HDMI IN interfaces, RJ45 interface for connecting switch 104, USB Touch interface, USB 2.0 interface, line IN interface, coaxial output interface, a plurality of RS232 interfaces, and Debug interface.

The third processor can adopt a Hai Si Hi3751V811 chip, a high-performance ARM A73+A53 CPU is built in the Hai Si Hi3751V811 chip, the size core architecture balances performance and power consumption, a multi-core ARM G51 GPU is built in the Hai Si Hi3751V811 chip, video formats supporting the main stream comprise AVS2, MPGE2, H.264, H.265, VP9, RMVB and the like, 4K 120Hz MEMC is built in the Hai Si Hi3751V811 chip, SWS sound processing of the Hai Si self-grinding is supported, a far-field voice scheme is supported, a 6GB memory is supported at most, LVDS, VBO and a main stream P2P interface are supported, and a Tconless screen of the main stream is supported.

In some embodiments, as shown in fig. 3, the wired communication module 1071 includes an RJ45 interface, a USB interface, an IO interface, and a UART interface, where the RJ45 interface is connected to the switch 104, the USB interface is connected to the OPS host 106, the IO interface of the wired communication module 1071 is connected to a plurality of IO interfaces of the first main control board 105, and the UART interface of the wired communication module 1071 is connected to a plurality of UART interfaces of the first main control board 105, where the plurality of IO interfaces of the first main control board 105 is further connected to one IO interface of the plurality of second main control boards 1000, and the plurality of UART interfaces of the first main control board 105 is further connected to one UART interface of the plurality of second main control boards 1000, so as to implement multi-screen interaction.

In some embodiments, as shown in fig. 3, the wireless communication module 1072 includes a bluetooth communication module BLE, where the external device includes one or more of a mobile terminal, an illumination lamp, an air conditioner, a curtain, and an environmental sensor, and the OPS host 106 is further configured to receive a control signal of the mobile terminal through the wireless internet of things gateway, and control a corresponding screen through the main control board according to the control signal.

Specifically, the external device is connected to the wireless internet of things gateway 107 through the bluetooth BLE Mesh protocol. The wireless internet of things gateway 107 is connected to the second processor through a USB interface. Instructions are sent by a control program on the second processor Windows system to the wireless internet of things gateway 107 to control the external device. In addition, the switch 104 can be remotely connected through the APP, and the switch 104 is in communication with the wireless internet of things gateway 107 to control external equipment.

In this embodiment, the wireless internet of things gateway 107 communicates with the third processor through the TTL and IO interfaces to achieve the purpose of controlling the transmission of signals to achieve the internet of things.

In some embodiments, the primary screen 103 includes a liquid crystal touch control screen as shown in fig. 2 (b) and fig. 2 (c), where the primary screen 103 and the secondary screen 109 are both configured to play video and receive touch control signals, and the OPS host 106 includes an OPS interface, a plurality of HDMI OUT interfaces, a plurality of USB3.0 interfaces, and a plurality of RS232 interfaces as shown in fig. 2 (a); wherein, the OPS interface of the OPS host 106 is connected with the OPS interface of the first main control board 105 to transmit video stream or touch control signal; the multiple HDMI OUT interfaces of the OPS host 106 are respectively connected with one HDMI IN interface of the multiple second main control boards 1000 to transmit video streams; the USB3.0 interfaces of the OPS host 106 are connected with the USB TOUCH interfaces of the second main control boards 1000 to transmit TOUCH control signals; the RS232 interfaces of the OPS host 106 are respectively connected with the RS232 interfaces of the second main control boards 1000 to transmit control instructions; the plurality of RS232 interfaces included in the first main control board 105 are respectively connected with the RS232 interfaces of the plurality of second main control boards 1000 to transmit control instructions; the multimedia all-in-one machine 100 may include two secondary screens 109.

IN some embodiments, as shown IN fig. 2 (b) and fig. 2 (g), the multimedia transmission component 108 includes a local camera and a sound pickup device, and the first main control board 105 includes a second OPS socket connected to the first OPS socket, an earphone output interface connected to the external earphone, a USB switch connected to the local camera, an HDMI OUT interface connected to the OPS host 106, an HDMI IN interface connected to the OPS host 106, an RJ45 interface connected to the switch 104, a USB Touch interface connected to a contact control signal, a USB 2.0 interface connected to a data transmission, a Line IN interface connected to the sound pickup device, a coaxial output interface connected to an audio output, an RS232 interface connected to a transmission control command, and a debuge interface connected to a transmission test signal (e.g., a test print signal), and a USB Touch interface and a liquid crystal drive interface connected to the main screen 103, wherein the USB switch is further connected to the USB interface of the second processor.

In some embodiments, the main screen body 101 further includes a first housing, where the first main control board 105, the OPS host 106, the wireless internet of things switch 107, and the multimedia transmission component 108 are all integrated in the first housing, a first side panel of the first housing is provided with a partial interface of the OPS host 106, and a second side panel of the first housing is provided with a partial interface of the first main control board 105 to connect to a network cable, an HDMI cable, a USB cable, a serial port line, and a sound pickup device.

The secondary screen 102 further includes a second housing, where the second main control board 1000 is integrated in the second housing, and a first side panel of the second housing is provided with a part of interfaces of the second main control board 1000 to be externally connected with an HDMI line, a USB TOUCH line, and a serial port line.

IN this embodiment, as shown IN fig. 4, one side of the first housing and the second housing is an interface board (i.e. a chassis back board), and each interface of the main screen body 101 and the auxiliary screen body 102 is fixed on the interface board, so as to be externally connected with a network cable, an HDMI cable, a USB TOUCH cable, a serial port cable and a sound pickup device, where the sound pickup device may include a microphone, and the sound pickup device is connected with the multimedia all-IN-one machine 100 through a MIC IN interface provided on the housing.

In some embodiments, the first main control board 105 further includes a USB3.0 interface and a USB TypeC interface disposed on the front panel of the first housing, where the USB3.0 interface and the USB TypeC interface are used to expand the storage unit.

In some embodiments, the main screen 103 and the auxiliary screen 109 are respectively provided with an on-off key and/or a status indicator light, where the on-off key is connected with a corresponding main control board for implementing on-off control of the multimedia all-in-one machine 100, and the status indicator light is connected with the corresponding main control board for indicating the working state of the multimedia all-in-one machine 100.

In some embodiments, as shown in fig. 2 (f), the multimedia all-in-one machine 100 further includes a power module for supplying power to the whole machine, and a charging terminal of the power module is disposed on the first housing or the second housing to connect to the power adapter of the power module for charging.

IN some embodiments, as shown IN fig. 5, the three-screen interaction unit 400 includes a second processor, a main screen 103 and two auxiliary screens 109, TOUCH control data of three screens are connected to a USB3.0 interface of the second processor through a USB TOUCH interface, after the second processor synthesizes, video stream transmission is performed with an HDMI IN interface of the three screens through three HDMI OUT interfaces, and relevant images and TOUCH control information of the second processor are displayed on the three screens through a liquid crystal driving interface; the three-screen startup and shutdown and related configuration linkage are synchronized through an RS232 interface among the three screens, and the startup and shutdown of the main screen 103 and related configuration information simultaneously inform the two auxiliary screens 109 through the RS232 interface, so that the two auxiliary screens 109 synchronously perform startup and shutdown control; the auxiliary screen 109 controls the on-off and related configuration information to inform the main screen 103 through an RS232 interface, and the main screen 103 informs the other auxiliary screen 109 through the RS232 interface, so that the synchronous on-off control of the three is achieved. The USB TOUCH interface of the primary screen 103 is standby, such as may be used when it is used as a secondary screen.

In summary, in the multimedia all-in-one machine of the embodiment of the utility model, recording and broadcasting control, internet of things control, edge calculation and information release are integrated in one system, and additional API interface docking and debugging are not needed, so that the cost of user installation and operation and maintenance is reduced.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must include a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least a plurality, for example, a plurality, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; may be directly connected or indirectly connected through intervening media, and may be in communication with each other within a plurality of elements or in an interactive relationship between the plurality of elements, unless expressly specified otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A multimedia all-in-one machine, characterized in that it comprises: the system comprises a main screen body and at least one auxiliary screen body, wherein the main screen body comprises a main screen, a switch, a first main control board, an OPS host, a wireless internet of things gateway and a multimedia transmission assembly, and each auxiliary screen body comprises an auxiliary screen and a second main control board;

2. The multimedia all-in-one machine according to claim 1, wherein the wired communication module comprises an RJ45 interface, a USB interface, an IO interface and a UART interface, the RJ45 interface is connected with the switch, the USB interface is connected with the OPS host, the IO interfaces of the wired communication module are respectively connected with a plurality of IO interfaces of the first main control board, the UART interfaces of the wired communication module are respectively connected with a plurality of UART interfaces of the first main control board, wherein the plurality of IO interfaces of the first main control board are respectively connected with one IO interface of the plurality of second main control boards, and the plurality of UART interfaces of the first main control board are respectively connected with one UART interface of the plurality of second main control boards, so as to realize multi-screen interaction.

3. The multimedia all-in-one machine according to claim 1, wherein the main screen and the auxiliary screen each adopt a liquid crystal touch control screen for playing video and receiving touch control signals, and the OPS host comprises an OPS interface, a plurality of HDMI OUT interfaces, a plurality of USB3.0 interfaces, and a plurality of RS232 interfaces; wherein,,

4. The multimedia all-in-one machine of claim 3, wherein the OPS host machine comprises: the system comprises a first OPS socket, a first processor and a second processor, wherein the OPS socket comprises an OPS interface of the OPS host;

the second processor comprises a plurality of HDMI OUT interfaces used for being connected with a plurality of second main control boards, a plurality of USB3.0 interfaces used for being connected with a plurality of second main control boards, RJ45 interfaces used for being connected with the switch, an audio input Line IN interface and an audio output Line OUT interface.

5. The multimedia all-IN-one machine of claim 4, wherein the multimedia transmission component comprises a local camera and a sound pickup device, the first main control board comprises a second OPS socket connected with the first OPS socket, an earphone output interface connected with an external earphone, a USB switch connected with the local camera, an HDMI OUT interface connected with the OPS host, an HDMI IN interface connected with the OPS host, an RJ45 interface connected with the switch, a USB Touch interface connected with a transmission Touch control signal, a USB 2.0 interface connected with a data transmission, a Line IN interface connected with the sound pickup device, a coaxial output interface connected with an audio output, an RS232 interface connected with a transmission control command, and a debuge interface connected with a transmission Debug signal, and a USB Touch interface and a liquid crystal drive interface connected with the main screen, wherein the USB switch is further connected with the USB interface of the second processor.

6. The multimedia all-in-one machine of claim 5, wherein the main screen body further comprises a first housing, wherein the first main control board, the OPS host, the wireless internet of things gateway and the multimedia transmission component are all integrated in the first housing, a first side panel of the first housing is provided with a part of an interface of the OPS host, and a second side panel of the first housing is provided with a part of an interface of the first main control board to be externally connected with a network cable, an HDMI cable, a USB TOUCH cable, a serial cable and the sound pickup device;

7. The multimedia all-in-one machine according to claim 1, wherein the main screen and the auxiliary screen are respectively provided with an on-off button and/or a status indicator lamp, the on-off button is connected with a corresponding main control board for realizing on-off control of the multimedia all-in-one machine, and the status indicator lamp is connected with the corresponding main control board for indicating the working state of the multimedia all-in-one machine.

8. The multimedia all-in-one machine according to claim 6, wherein the first main control board further comprises a USB3.0 interface and a USB TypeC interface, which are disposed on the front panel of the first housing, and the USB3.0 interface and the USB TypeC interface are configured to be used as external storage units.

9. The multimedia all-in-one machine of claim 1, wherein the wireless communication module comprises a bluetooth communication module, wherein the external device comprises one or more of a mobile terminal, an illumination lamp, an air conditioner, a curtain, and an environmental sensor, and wherein the OPS host is further configured to receive a control signal of the mobile terminal through the wireless internet of things gateway and control a corresponding screen through a main control board according to the control signal.