CN217388876U - Network audio and video matrix system - Google Patents
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Abstract
A network audio and video matrix system comprises a switch, a wireless communication device, a plurality of coding ends connected with audio and video program source equipment and a plurality of decoding ends connected with display equipment, wherein the wireless communication device, the coding ends and the decoding ends are connected through the switch to form a local area network, a mobile terminal can be connected into the local area network through the wireless communication device, audio and video signals of any coding end can be transmitted to any decoding end through the local area network, the decoding end receives the audio and video signals and decodes the audio and video signals and outputs the audio and video signals to the display equipment to be played, and the coding ends and the decoding ends can perform information interaction with the mobile terminal through the local area network, so that a user can install APP control software on a mobile terminal such as a portable mobile phone and a tablet personal computer, and can quickly send control instructions to the coding ends and the decoding ends through the APP control software at any time and any place to perform work state query, video preview, Signal switching, parameter setting and the like.
Description
Technical Field
The application relates to the field of network audio and video transmission, in particular to a network audio and video matrix system.
Background
The family audio-visual amusement is the first choice mode of people's leisure amusement at home, and along with the continuous improvement of people's living standard, people are also higher level to the audio-visual pursuit of family, and the TV set has all been installed in each room of many families, and everybody can select the program that oneself likes according to own interest.
In order to enable the television in each room of the family to obtain different program sources, a general solution is to configure its own set-top box, DVD, high-definition player, and other program source devices in each room, which is not only troublesome to install and inconvenient to place, but also not conducive to the management and sharing of program sources. For example, a DVD is used in a room to play a certain movie, and the user wants to continue watching the movie after arriving at the living room, but the set-top box in the living room has no resource of the movie, and there is no way to switch the movie played by the DVD in the room to the television in the living room for playing.
SUMMERY OF THE UTILITY MODEL
The application provides a network audio and video matrix system, which aims to solve the problem that audio and video display equipment cannot switch programs of different program source equipment to play.
According to an aspect of the present application, an embodiment provides a network audio/video matrix system, including a switch, a wireless communication device, a plurality of encoding terminals and a plurality of decoding terminals;
each coding end is used for being connected with an audio and video program source device, collecting audio and video signals output by the audio and video program source device, and coding, compressing and sending the audio and video signals; each decoding end is used for being connected with a display device and receiving a compressed audio and video signal, decoding the compressed audio and video signal and outputting the decoded audio and video signal to the display device for playing;
the wireless communication device, the plurality of encoding terminals and the plurality of decoding terminals are connected through the switch to form a local area network;
the wireless communication device is used for communicating with the mobile terminal so that the mobile terminal can access the local area network.
In one embodiment, the encoding end comprises a shell, an audio/video input port and a first network interface; the audio and video input port is arranged on the shell and used for being connected with the audio and video program source equipment, and the first network interface is arranged on the shell and used for being connected with the switch.
In one embodiment, the encoding end further includes a USB power supply port, and the USB power supply port is disposed on the housing and is used for connecting a power supply to supply power to the encoding end.
In one embodiment, the audio/video input port is an HDMI Type-a male connector, and the first network interface is an RJ45 network port.
In one embodiment, the decoding end comprises a shell, an audio/video output port and a second network interface; the audio and video output port is arranged on the shell and used for being connected with the display device, and the second network interface is arranged on the shell and used for being connected with the switch.
In one embodiment, the decoding end further comprises a USB power supply port, and the USB power supply port is disposed on the housing and used for connecting a power supply to supply power to the decoding end.
In one embodiment, the audio/video output port is an HDMI Type-a male connector, and the second network interface is an RJ45 network port.
In one embodiment, the wireless communication apparatus is a wireless AP device.
In one embodiment, the encoding end has two encoding formats, namely a main code stream and a sub code stream, and outputs audio and video signals with relatively high resolution and code rate when the main code stream format is adopted, and outputs audio and video signals with relatively low resolution and code rate when the sub code stream format is adopted;
and when the coding end sends the audio and video signals through the local area network for the mobile terminal to preview, the audio and video signals are sent in a subcode format.
In one embodiment, the sub-code stream format includes a large-code-rate sub-code stream and a small-code-rate sub-code stream, when the encoding end sends an audio/video signal through the local area network for the mobile terminal to preview, if the mobile terminal previews in a small window, the small-code-rate sub-code stream sends the audio/video signal, and if the mobile terminal previews in a full screen, the large-code-rate sub-code stream sends the audio/video signal.
According to the network audio and video matrix system of the embodiment, the wireless communication device, the coding end connected with the audio and video program source equipment and the decoding end connected with the display equipment are connected through the switch to form a local area network, the mobile terminal can be connected into the local area network through the wireless communication device, so that the audio and video signals of any coding end can be transmitted to any decoding end through the local area network, the decoding end receives and decodes the audio and video signals and outputs the audio and video signals to the display equipment for playing, the coding end and the decoding end can carry out information interaction with the mobile terminal through the local area network, therefore, a user can preview the programs of the audio and video program source equipment through the mobile terminal such as a portable mobile phone, a tablet personal computer and the like, the program source switching is carried out through the mobile terminal to the coding end and the decoding end, and the programs of any audio and video program source equipment can be played on any display equipment, the sharing and unified management of multiple program sources are realized, and the convenience of program playing is improved.
Drawings
Fig. 1 is a schematic structural diagram of a network audio/video matrix system according to an embodiment;
FIG. 2 is a schematic front view of an encoding end according to an embodiment;
FIG. 3 is a schematic diagram of a back side structure of an encoding end according to an embodiment;
FIG. 4 is a schematic diagram illustrating a front side structure of a decoding end according to an embodiment;
FIG. 5 is a schematic diagram of a backside structure of a decoding end according to an embodiment;
fig. 6 is a schematic structural diagram of a network audio and video matrix system according to another embodiment.
Description of reference numerals:
10. a switch; 20. a wireless communication device; 30. a coding end; 301. a housing; 302. an audio/video input port; 303. a first network interface; 304. a USB power supply port; 305. a simulated audio input port; 306. setting a key; 40. a decoding end; 401. a housing; 402. an audio/video output port; 403. a second network interface; 404. a USB power supply port; 405. an analog audio output port; 406. and resetting the key.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operation steps involved in the embodiments may be interchanged or modified in order as will be apparent to those skilled in the art. Accordingly, the description and drawings are merely for clarity of description of certain embodiments and are not intended to necessarily refer to a required composition and/or order.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
In order to centralize audio and video program source equipment such as a set top box, a DVD (digital video disk), a high-definition player and the like, and share and distribute multiple program sources to each display device for playing, so that each display device can switch and watch the program of any audio and video program source equipment, the application provides a network audio and video matrix system, the original audio and video signals of the program sources are networked by utilizing an encoding and decoding technology, the transmission and management of data are realized through a local area network, the audio and video signals of any one program source can be switched to any one display device for displaying, and the sharing of the multiple program sources is realized.
Referring to fig. 1, a network audio/video matrix system in an embodiment of the present application includes a switch 10, a wireless communication device 20, a plurality of encoding terminals 30, and a plurality of decoding terminals 40, which are described below.
The encoding terminals 30 (abbreviated as "TX" in english) are configured to be connected to an audio/Video program source device, each encoding terminal 30 is connected to one audio/Video program source device, and the audio/Video program source device includes, but is not limited to, a computer, a Video camera, a set-top box, a high definition playing box, an NVR (Network Video Recorder), a DVD, and the like. The encoding terminal 30 is used for collecting audio and video signals from audio and video program source equipment, and encoding, compressing and transmitting the audio and video signals. Referring to fig. 2 and 3, in one embodiment, the encoding end 30 includes a housing 301, an audio/video input port 302, and a first network interface 303. The audio and video input port 302 and the first network interface 303 are both arranged on the casing 301, the audio and video input port 302 is arranged on one side of the casing 301, the first network interface 303 is arranged on the other side of the casing 301, the position of the first network interface 303 is opposite to that of the audio and video input port 302, the audio and video input port 302 is used for connecting audio and video program source equipment and collecting audio and video signals, and the first network interface 303 is used for connecting the switch 10. In one embodiment, the audio/video input port 302 is an HDMI (High Definition Multimedia Interface) input port and may be an HDMI Type-a male connector, and at this time, the audio/video input port can be directly inserted into an HDMI socket of an audio/video program source device for signal acquisition without an HDMI connection line, and the first network Interface 303 may be an RJ45 network port.
In some embodiments, the encoding end 30 may further be provided with a USB power supply port 304, an analog audio input port 305, and a setting button 306, and the USB power supply port 304, the analog audio input port 305, and the setting button 306 are all disposed on the casing 301. The USB power supply port 304 is used for connecting a power supply to supply power to the encoding terminal 30, and when the audio/video input port 302 is an HDMI input port, the encoding terminal 30 can supply power by using +5V voltage output by the HDMI input port of the signal source through the HDMI input port, and can also supply power through the USB power supply port on the housing, so that power supply is more stable. The setting key 306 is used to switch the audio input source and restore factory settings. Specifically, when the setting key 306 is pressed for a short time (the setting key 306 is pressed and the pressed state is maintained for 3 seconds or more and less than 15 seconds), the digital audio input and the analog audio input are switched; long pressing the setting key 306 (pressing the setting key 306 and keeping the pressed state for 15 seconds or more) restores the encoding terminal 30 to factory settings, and the encoding terminal 30 restores all the operating parameters to the initial state at factory.
The encoding end 30 has two encoding formats, namely a main code stream and a sub code stream, and outputs audio and video signals with relatively high resolution and code rate when the main code stream format is adopted, and outputs audio and video signals with relatively low resolution and code rate when the sub code stream format is adopted. In a specific implementation manner, the main code stream adopts a 1080P coding format, and the sub-code stream adopts a 540P coding format.
The decoding terminals 40 (abbreviated as "RX" in english) are used to connect with display devices, and each decoding terminal 40 is connected with a display device, which includes but is not limited to a television, a display, a projector, a tiled screen, and the like. The decoding terminal 40 is configured to receive the compressed audio/video signal, decode the compressed audio/video signal, and output the decoded audio/video signal to a display device for playing. Referring to fig. 4 and 5, in an embodiment, the decoding end 40 includes a housing 401, an audio/video output port 402, and a second network interface 403. Audio frequency and video delivery outlet 402 and second network interface 403 all set up on casing 401, and audio frequency and video delivery outlet 402 sets up in one side of casing 401, and second network interface 403 sets up in the opposite side of casing 401, and the position is relative with audio frequency and video delivery outlet 402, and audio frequency and video delivery outlet 402 is used for connecting display device, and audio frequency and video signal transmission to display device after will decoding, and second network interface 403 is used for connecting switch 10. In one embodiment, the audio/video output port 402 is an HDMI output port, and may be an HDMI Type-a male connector, and may be directly plugged into an HDMI interface of the display device without an HDMI connection line to output audio/video signals, and the second network interface 403 may be an RJ45 network port.
In some embodiments, the decoding end 40 may further be provided with a USB power supply port 404, an analog audio output port 405, and a reset button 406, and the USB power supply port 404, the analog audio output port 405, and the reset button 406 are all disposed on the housing 401. The USB power port 404 is used to connect a power source to supply power to the decoding terminal 40, and the reset button 406 is used to restore factory settings. Specifically, if the reset key 406 is pressed for a long time (the reset key 406 is pressed and the pressed state is kept for 15 seconds or more), the decoding end 40 is reset to the factory setting, and the decoding end 40 will reset all the operating parameters to the initial state at the time of factory shipment.
The wireless communication device 20 is used for communicating with the mobile terminal, establishing wireless connection between the mobile terminal and the local area network, and enabling the mobile terminal, the encoding terminal 30 and the decoding terminal 40 to realize information exchange in the same local area network. The mobile terminal can be a smart phone, a tablet computer, a notebook computer and the like. Referring to fig. 6, in an embodiment, the wireless communication apparatus 20 may be a wireless AP device, such as a wireless router or the like.
As shown in fig. 1, the wireless communication device 20, the plurality of encoding terminals 30 and the plurality of decoding terminals 40 are connected through the switch 10 to form a local area network, and the local area network may specifically adopt an ethernet network. The mobile terminal may access the local area network through the wireless communication device 20, for example, when the wireless communication device 20 is a wireless router, the mobile terminal may access the local area network through WiFi connectivity. The encoding end 30 and the decoding end 40 can perform UDP or TCP communication with each other through the lan, and audio/video signals of any encoding end can be transmitted to any decoding end through the lan, and received by the decoding end, decoded and output to the display device for playing. The user can select different numbers of encoding ends and decoding ends according to the application requirement of the user to flexibly establish the audio and video matrix system, and the encoding ends or the decoding ends can be added at any time in the using process to expand the network audio and video matrix system.
After the mobile terminal is accessed to the local area network, the mobile terminal can also communicate with the encoding terminal 30 and the decoding terminal 40 in the network audio/video matrix system through a UDP (user datagram protocol) or TCP (transmission control protocol) protocol to realize information interaction and transmit corresponding instructions to realize signal switching and video preview of the network audio/video matrix system and operations such as equipment state query, equipment parameter setting, equipment addition or deletion management and the like of the encoding terminal 30 and the decoding terminal 40. The user can carry out various operations by installing special APP (Application) control software on the mobile terminal, and the operation is simple and convenient. The APP control software sends an instruction and receives information through the mobile terminal, all the encoding ends 30 and the decoding ends 40 of the network audio and video matrix system form a controlled terminal device set of the APP control software, and one device in the device set is a controlled terminal device of a command sent by the APP control software through the mobile terminal. The APP control software can run on smart mobile terminals such as smart phones, iphones, ipads and tablet computers with Android and ios operating systems.
And the mobile terminal and the controlled terminal equipment carry out control interaction in a UDP multicast mode. Specifically, each command sent by the mobile terminal can be received by each device in the controlled terminal device set, the command sent by the mobile terminal includes the serial number of the controlled terminal device of the command, all devices in the controlled terminal device set receive the command sent by the mobile terminal by listening to the same preset network multicast address, and the command from the mobile terminal is executed through a command processing process. Each controlled terminal equipment compares whether the sequence number of the controlled terminal equipment is consistent with the sequence number contained in the received command or not to determine whether the command needs to be executed or not, and when the sequence number contained in the command is consistent with the sequence number of the controlled terminal equipment, the received command is executed, and then the execution result of the command is sent to the mobile terminal to be fed back to the APP control software; when the sequence number included in the command does not coincide with the sequence number itself, the received command is not executed.
All the devices of the controlled terminal device set send information to the mobile terminal through the same preset network multicast address. The transmitted information may be the result of executing a command of the controlled terminal device, or the current state information of the controlled terminal device. Specifically, information sent by a controlled terminal to a preset network multicast address contains the own serial number of the controlled terminal device, and the APP control software receives the information by monitoring the preset network multicast address through the mobile terminal and then distinguishes the information source according to the serial number contained in the received information.
For example, when a coding end and a decoding end need to be searched and added in the APP control software, a user can send an instruction through a device search interface provided by the APP control software, the APP control software sends a UDP multicast command to search the coding end and the decoding end in the local area network through the mobile terminal, after receiving the multicast command, the coding end and the decoding end feed back own state information (a device name, a serial number, whether the coding end and the decoding end are added, and the like) to the APP control software, and the user can see the searched states of the coding end and the decoding end on the device search interface of the APP control software. Similarly, when a program source needs to be switched, a user can select which encoding end outputs an audio/video signal to which decoding end through a program source switching interface provided by the APP control software, the APP control software sends a switching command in a local area network in a UDP multicast mode through the mobile terminal, and the encoding end and/or the decoding end corresponding to the switching command execute the command after receiving the command, thereby realizing the switching of the program source.
The user can also preview the audio and video transmitted by the encoding terminal 30 on the mobile terminal through a preview interface of the APP control software. When the encoding end 30 sends the audio and video signals through the local area network for the mobile terminal to preview, the audio and video signals are sent in a subcode stream format to reduce network burden when the APP control software simultaneously previews a plurality of audios and videos, and when the encoding end 30 sends the audio and video signals to the decoding end through the local area network, the audio and video signals are sent in a main code stream format to restore high-definition audio and video signals. It can be understood that the APP control software may have a small-window preview mode or a full-screen preview mode, and for the two preview modes, the sub-code stream format may include a large-code-rate sub-code stream and a small-code-rate sub-code stream, if the mobile terminal is a small-window preview, the encoding end 30 sends an audio/video signal with the small-code-rate sub-code stream, and if the mobile terminal is a full-screen preview, the encoding end 30 sends an audio/video signal with the large-code-rate sub-code stream, so as to ensure that high-definition audio/video can be obtained during the full-screen preview, and the decoding burden of the mobile terminal can be reduced during the small-window preview, so as to obtain smooth preview audio/video.
The application of the network audio and video matrix system is described below by taking home audio and video as an example. In some homes, a living room and each room are equipped with a television, and each television is provided with a corresponding set-top box, DVD, high-definition player, and other audio and video program source devices to play programs on the television. The television in each room can be accessed into the decoding end of the network audio and video matrix system, and the set-top box, the DVD, the high-definition player and the like can be accessed into the coding end of the system, so that a user can simply and quickly switch and control program sources through a portable mobile phone, a tablet personal computer and other mobile terminals, programs of any audio and video program source equipment can be watched on the television in the living room and each room, and the system is very convenient and fast. It should be noted that the network audio/video matrix system of the present application is not limited to the application of home audio/video, and is applicable to any environment with requirements for switching and managing multiple audio/video signals, such as governments, enterprises, schools, shopping malls, cinemas, churches, security, etc.
In the network audio/video matrix system of the above embodiments of the present application, the wireless communication device, the encoding end connected to the audio/video program source device, and the decoding end connected to the display device are connected through the switch to form a local area network, the mobile terminal can access the local area network through the wireless communication device, so that the audio/video signal of any encoding end can be transmitted to any decoding end through the local area network, the decoding end receives and decodes the audio/video signal and outputs the audio/video signal to the display device for playing, the encoding end and the decoding end can perform information interaction with the mobile terminal through the local area network, so that a user can preview the program of the audio/video program source device through the mobile terminal such as a portable mobile phone and a tablet computer, and send an instruction to the encoding end and the decoding end through the mobile terminal to perform program source switching, so that the program of any audio/video program source device can be played on any display device, the sharing and unified management of multiple program sources are realized, and the convenience of program playing is improved.
It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.
Claims (8)
1. A network audio and video matrix system is characterized by comprising a switch, a wireless communication device, a plurality of encoding ends and a plurality of decoding ends;
each coding end is used for being connected with an audio and video program source device, collecting audio and video signals output by the audio and video program source device, and coding, compressing and sending the audio and video signals; each decoding end is used for being connected with a display device and receiving a compressed audio and video signal, decoding the compressed audio and video signal and outputting the decoded audio and video signal to the display device for playing;
the wireless communication device, the plurality of encoding terminals and the plurality of decoding terminals are connected through the switch to form a local area network;
the wireless communication device is used for communicating with the mobile terminal so that the mobile terminal can access the local area network.
2. The network audio-video matrix system of claim 1, wherein the encoding end comprises a housing, an audio-video input port, and a first network interface; the audio and video input port is arranged on the shell and used for being connected with the audio and video program source equipment, and the first network interface is arranged on the shell and used for being connected with the switch.
3. The network audio-video matrix system according to claim 2, wherein the encoding end further comprises a USB power supply port, and the USB power supply port is disposed on the housing and configured to be connected to a power supply to supply power to the encoding end.
4. The network audio-video matrix system according to claim 2 or 3, wherein the audio-video input port is an HDMI Type-a male connector, and the first network interface is an RJ45 network port.
5. The network audio-video matrix system according to claim 1, wherein the decoding end comprises a housing, an audio-video output port and a second network interface; the audio and video output port is arranged on the shell and used for being connected with the display device, and the second network interface is arranged on the shell and used for being connected with the switch.
6. The network audio-video matrix system of claim 5, wherein the decoding end further comprises a USB power supply port disposed on the housing for connecting a power supply to supply power to the decoding end.
7. The network audio-video matrix system according to claim 5 or 6, wherein the audio-video output port is an HDMI Type-a male connector, and the second network interface is an RJ45 network port.
8. The network audio video matrix system of claim 1, wherein the wireless communication means is a wireless AP device.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115550569A (en) * | 2022-11-24 | 2022-12-30 | 基石酷联微电子技术（北京）有限公司 | Audio-video transceiver and matrix system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115550569A (en) * | 2022-11-24 | 2022-12-30 | 基石酷联微电子技术（北京）有限公司 | Audio-video transceiver and matrix system |
| CN115550569B (en) * | 2022-11-24 | 2023-03-10 | 基石酷联微电子技术（北京）有限公司 | Audio-video transceiver and matrix system |
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