CN210745363U - Video communication terminal - Google Patents

Abstract

An embodiment of the utility model provides a video communication terminal, including controlling display screen, mainboard and functional unit. The control display screen is positioned above the main board, and the functional unit is positioned below the main board. The functional unit comprises an audio collector, an audio output device, a video collector, a projection module, a network module and other functional modules. The audio collector and the video collector respectively collect audio data and video data; the mainboard is used for encoding the collected audio data and video data, transmitting the encoded audio data and video data to other terminals through the network module, and receiving the audio data and video data from other terminals; the mainboard decodes the received audio data and video data, outputs the audio data through the audio output device, and projects the video data through the projection module. The embodiment of the utility model provides a with multiple function module integration, need not to install numerous equipment in the videoconference is used, reduced occuping of space, reduced installation and maintenance cost.

Description

Video communication terminal

Technical Field

The utility model relates to a video networking technical field especially relates to a video communication terminal.

Background

The video network is a special network for transmitting high-definition video and a special protocol at high speed based on Ethernet hardware, is a higher-level form of the Ethernet and is a real-time network.

At present, if a video network video conference environment is built, equipment such as a camera, a microphone, a display and a network communication link needs to be installed. Numerous devices occupy a large amount of space, and network communication links between devices are complex to connect, and the later maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present invention are proposed to provide a video communication terminal that overcomes or at least partially solves the above-mentioned problems.

In order to solve the above problem, an embodiment of the present invention discloses a video communication terminal, which is applied to a video conference and comprises a control display screen, a main board and a functional unit, wherein the control display screen is located above the main board, and the functional unit is located below the main board; the functional unit comprises a plurality of functional modules, and the functional modules comprise an audio collector, an audio output device, a video collector, a projection module and a network module; the control display screen responds to the operation of a user and generates an operation instruction; the audio collector collects first audio data according to the operation instruction, and the video collector collects first video data according to the operation instruction; the main board carries out coding processing on the first audio data and the first video data; the network module transmits the first audio data and the first video data which are subjected to coding processing to other video communication terminals, and receives second audio data and second video data from the other video communication terminals; the main board decodes the second audio data and the second video data; the audio output device performs output operation on the decoded second audio data, and the projection module performs output operation on the decoded second video data.

Optionally, a plurality of internal interfaces are disposed on the motherboard, and the control display screen and the functional unit are respectively connected to the motherboard through the corresponding internal interfaces.

Optionally, the audio collector transmits the collected first audio data to the motherboard through the internal interface connected to the motherboard; the video collector transmits the collected first video data to the mainboard through the internal interface connected with the mainboard; and the main board transmits the first audio data and the first video data which are subjected to coding processing to the network module through the internal interface connected with the network module.

Optionally, the main board receives the second audio data and the second video data through the internal interface connected to the network module; the mainboard transmits the decoded second audio data to the audio output device through the internal interface connected with the audio output device; and the main board transmits the decoded second video data to the projection module through the internal interface connected with the projection module.

Optionally, the main board transmits the first video data after the encoding processing and the second video data after the decoding processing to the control display screen through the internal interface connected to the control display screen; and the control display screen respectively displays the first video data after the coding processing and the second video data after the decoding processing in corresponding display windows.

Optionally, a plurality of said internal interfaces are four-pin sockets.

Optionally, the main board and the plurality of functional modules in the functional unit communicate with each other through a Universal Serial Bus (USB) protocol.

Optionally, the functional unit further comprises a plurality of heat dissipation devices, wherein the heat dissipation devices comprise a fan, a heat dissipation pipe and a heat dissipation fin; the radiating fins are respectively and correspondingly arranged at the upper parts of the functional modules, and the radiating pipe is connected with the radiating fins; the fan rotates through the fan blades, and heat of the radiating pipe and the radiating fins is reduced.

Optionally, a plurality of external interfaces are arranged on the motherboard, and an external device is connected to the motherboard through the plurality of external interfaces; the external device includes a microphone, a display, and a camera.

Optionally, the plurality of external interfaces include a high definition multimedia interface HDMI, a microphone MIC, and a USB.

The embodiment of the utility model provides a include following advantage:

the embodiment of the utility model provides a pair of video communication terminal is applied to in the video conference. The video communication terminal can comprise a control display screen, a mainboard and a functional unit, wherein the control display screen is positioned above the mainboard, and the functional unit is positioned below the mainboard. The functional unit comprises a plurality of functional modules, and each functional module comprises an audio collector, an audio output device, a video collector, a projection module and a network module. The control display screen responds to the operation of a user and generates an operation instruction; the audio collector collects first audio data according to the operation instruction, and the video collector collects first video data according to the operation instruction; the main board carries out coding processing on the first audio data and the first video data; the network module transmits the first audio data and the first video data which are subjected to coding processing to other video communication terminals, and receives second audio data and second video data from other video communication terminals; the main board decodes the second audio data and the second video data; the audio output device performs output operation on the decoded second audio data, and the projection module performs output operation on the decoded second video data.

The embodiment of the utility model provides an in video communication terminal with multiple function module integration, in the video conference is used, need not to install numerous equipment, reduced the occupation in space to and, reduced installation and maintenance cost.

Drawings

Fig. 1 is a schematic diagram of a video network according to the present invention;

fig. 2 is a schematic diagram of a hardware structure of a node server according to the present invention;

fig. 3 is a schematic diagram of a hardware structure of an access switch according to the present invention;

fig. 4 is a schematic diagram of a hardware structure of an ethernet collaboration gateway according to the present invention;

fig. 5 is a block diagram of a video communication terminal according to the present invention;

fig. 6 is a schematic top-level structure diagram of a video conference device according to the present invention;

fig. 7 is a schematic diagram of a middle layer structure of a video conference device according to the present invention;

fig. 8 is a schematic view of the lower layer structure of a video conference device of the present invention

Fig. 9 is a schematic design flow diagram of a video conference device according to the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The embodiment of the utility model provides a video communication terminal can be applied to in the video conference, specifically, can be applied to in the video conference based on the internet, also can be applied to in the video conference based on the video networking, can also be applied to in the video conference based on internet and video networking. To better understand the embodiments of the present invention for those skilled in the art, the following description is given of the video network:

the video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.

The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.

Some of the technologies applied in the video networking are as follows:

network Technology (Network Technology)

Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network circuit Switching (circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.

Switching Technology (Switching Technology)

The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.

Server Technology (Server Technology)

The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.

Storage Technology (Storage Technology)

The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.

Network Security Technology (Network Security Technology)

The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.

Service Innovation Technology (Service Innovation Technology)

The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.

Networking of the video network is as follows:

the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.

As shown in fig. 1, the video network is divided into an access network and a metropolitan network.

The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.

The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.

Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.

The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.

The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.

Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.

The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.

Video networking device classification

1.1 the utility model discloses equipment in the visual network of embodiment mainly can divide into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.

1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).

The specific hardware structure of each access network device is as follows:

a node server:

as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;

the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.

The access switch:

as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;

wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.

The switching engine module 303 polls all packet buffer queues, which in the embodiment of the present invention is divided into two cases:

if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;

if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.

The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.

The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.

Ethernet protocol conversion gateway：

As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.

Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;

the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MACSA of the ethernet coordination gateway, and the ethernet length or frame type, and sends the packet.

The other modules in the ethernet protocol gateway function similarly to the access switch.

A terminal:

the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.

1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.

2. Video networking packet definition

2.1 Access network packet definition

The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.

As shown in the following table, the data packet of the access network mainly includes the following parts:

DA

SA

Reserved

Payload

CRC

wherein:

the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;

the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);

the reserved byte consists of 2 bytes;

the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;

the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.

2.2 metropolitan area network packet definition

The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.

In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.

As shown in the following table, the data packet of the metro network mainly includes the following parts:

DA

SA

Reserved

label (R)

Payload

CRC

Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.

Referring to fig. 5, a block diagram of a video communication terminal according to the present invention is shown, which can be applied to a video conference, and mainly includes a control display screen 51, a main board 52 and a functional unit 53. The control display screen 51 is located above the main board 52, and the function unit 53 is located below the main board 52. The functional unit 53 may include a plurality of functional modules, the functional modules may include an audio collector 531, an audio output device 532, a video collector 533, a projection module 534, a power supply 535, a network module 536, and the like, and the main board 52 may be in communication connection with the control display screen 51 and the functional unit 53, respectively.

In practical applications, the video communication terminal can be divided into three layers, the control display screen 51 can be disposed above the main board 52, and the functional unit 53 can be disposed below the main board 52. The manipulation display screen 51 may generate an operation instruction in response to an operation by the user and transmit the operation instruction to the main board 52. The main board 52 may parse the operation command and forward the operation command to the corresponding functional module in the functional unit 53 according to the parsing result. One of the purposes of the main board 52 to analyze the operation command is to determine which specific functional module in the functional unit 53 is a control target of the operation command. Therefore, the analysis result may include a character or the like for identifying a specific function module. If the control object of the operation instruction is the audio collector 531, the audio collector 531 may collect first audio data according to the operation instruction and transmit the first audio data to the main board 52; if the control object of the operation instruction is the video collector 533, the video collector 533 may collect the first video data according to the operation instruction, and transmit the first video data to the main board 52. After receiving the first audio data and/or the second audio data, the main board 52 may perform an encoding process on the first audio data and/or the first video data, and transmit the encoded first audio data and/or the encoded first video data to the network module 536. The network module 536 may forward the encoded first audio data and/or the first video data to other video communication terminals in the video conference.

The first audio data and/or the first video data are local audio data and/or local video data collected by the local video communication terminal, and the local video communication terminal can transmit the collected first audio data and/or first video data to other video communication terminals in the video conference after encoding processing.

The local video communication terminal can also receive audio data and/or video data of other video communication terminals in the video conference. In a preferred embodiment of the present invention, the network module 536 can receive the second audio data and/or the second video data of other video communication terminals in the video conference, and transmit the second audio data and/or the second video data to the main board 52. The main board 52 decodes the second audio data and/or the second video data, transmits the decoded second audio data to the audio output device 532, and transmits the decoded second video data to the projection module 534. The audio outputter 532 may play the decoded second audio data. The projection module 534 may perform a projection operation on the decoded second video data.

In a preferred embodiment of the present invention, the main board 52 may be provided with a plurality of internal interfaces, and the plurality of internal interfaces may connect a plurality of functional modules in the control display screen 51 and the functional unit 53.

When the audio collector 531 transmits the first audio data to the network module 536, the audio collector 531 may transmit the first audio data to the motherboard 52 through the internal interface connected thereto, and after the motherboard 52 encodes the first audio data, the motherboard transmits the encoded first audio data to the network module 536 through the internal interface connected to the network module 536. When the video collector 533 transmits the first video data to the network module 536, the video collector 533 may transmit the first video data to the main board 52 through the internal interface connected to the video collector 533, and after the main board 52 encodes the first video data, the main board transmits the encoded first video data to the network module 536 through the internal interface connected to the network module 536.

The main board 52 may further receive the second audio data and the second video data through an internal interface connected to the network module 536, and after performing decoding processing on the second audio data and/or the second video data, transmit the decoded second audio data to the audio outputter 532 through the internal interface connected to the audio outputter 532, and transmit the decoded second video data to the projection module 534 through the internal interface connected to the projection module 534.

In a preferred embodiment of the present invention, the main board 52 transmits the first video data after the encoding process and/or the second video data after the decoding process to the control display screen 51 through the internal interface connected to the control display screen 51 after the encoding process and/or the second video data after the decoding process to the display screen 51 after the encoding process and/or the second video data after the decoding process are respectively displayed in the corresponding display windows by the control display screen 51. That is, the manipulation display screen 51 can present video data in addition to responding to the operation of the user.

In a preferred embodiment of the present invention, the internal interface disposed on the motherboard 52 can be a four-pin socket, each functional module can be connected to the motherboard 52 through the corresponding four-pin socket, and the motherboard 52 and the functional module communicate with each other through a Universal Serial Bus (USB) protocol.

In a preferred embodiment of the present invention, the functional unit 53 may further include a plurality of heat dissipation devices 537, and the heat dissipation devices 537 may include a fan, a heat dissipation pipe, and a heat dissipation fin. Wherein, the upper portion of every functional module all can set up a fin that corresponds, and the cooling tube can link to each other with a plurality of fin, and the rotation that the fan passed through the flabellum reduces the heat of cooling tube and fin, avoids each functional module's stability too high.

In a preferred embodiment of the present invention, the main board 52 may further include a plurality of external interfaces, and the external interfaces may be respectively connected to external devices such as a microphone, a display, and a camera. In practical applications, the external Interface may be a High Definition Multimedia Interface (HDMI), MIC, USB, or the like.

In the following, a preferred mode of implementing the present invention is described, in which the video communication terminal can be applied to a video conference, as shown in fig. 5, the video communication terminal includes a control display screen 51, a main board 52 and a function unit 53, the control display screen 51 is located above the main board 52, and the function unit 53 is located below the main board 52; the functional unit 53 includes a plurality of functional modules, and the specific functional modules include an audio collector 531, an audio output device 532, a video collector 533, a projection module 534, a power supply 535, and a network module 536.

In the preferred mode, the manipulation display screen 51 generates an operation instruction in response to an operation by the user; the audio collector 531 acquires first audio data according to the operation instruction, and the video collector 533 acquires first video data according to the operation instruction; the main board 52 performs encoding processing on the first audio data and the first video data; the network module 536 transmits the encoded first audio data and first video data to other video communication terminals, and receives second audio data and second video data from other video communication terminals; the main board 52 decodes the second audio data and the second video data; the audio outputter 532 performs an output operation on the decoded second audio data, and the projection module 534 performs an output operation on the decoded second video data.

In this preferred embodiment, the main board 52 is provided with a plurality of internal interfaces, and the control display screen 51 and the function unit 53 are connected to the main board 52 through the respective internal interfaces.

In the preferred embodiment, the audio collector 531 transmits the collected first audio data to the main board 52 through an internal interface connected to the main board 52; the video collector 533 transmits the collected first video data to the main board 52 through an internal interface connected to the main board 52; the main board 52 transmits the encoded first audio data and the first video data to the network module 536 through the internal interface connected to the network module 536.

In the preferred mode, the main board 52 receives the second audio data and the second video data through the internal interface connected to the network module 536; the main board 52 transmits the decoded second audio data to the audio output device 532 through the internal interface connected to the audio output device 532; the main board 52 transmits the decoded second video data to the projection module 534 through an internal interface connected to the projection module 534.

In this preferred mode, the main board 52 transmits the first video data after the encoding process and the second video data after the decoding process to the manipulation display screen 51 through an internal interface connected to the manipulation display screen 51; the control display screen 51 displays the first video data after the encoding processing and the second video data after the decoding processing in the corresponding display windows respectively.

In this preferred form, the plurality of internal ports are four-pin sockets.

In the preferred embodiment, the main board 52 communicates with a plurality of functional modules in the functional unit 53 via a universal USB protocol.

In this preferred form, the functional unit 53 further includes a plurality of heat sinks 537, the heat sinks 537 including fans, radiating pipes, and radiating fins; the radiating pipes are connected with the radiating fins; the fan rotates through the fan blades, and the heat of the radiating pipe and the radiating fins is reduced.

In this preferred embodiment, the main board 52 is provided with a plurality of external interfaces, and the external device is connected to the main board 52 through the plurality of external interfaces; the external device includes a microphone, a display, and a camera.

In this preferred embodiment, the plurality of external interfaces include HDMI, microphone MIC, and USB.

Based on the above-described related description about a video communication terminal, a video conference apparatus is described below. The video conference equipment is divided into an upper layer, a middle layer and a lower layer, as shown in fig. 6, the uppermost layer is a control display screen used for carrying out various operations on the video conference equipment, such as projection or camera angle adjustment, volume adjustment, input source selection and the like. As shown in fig. 7, the middle layer is a main board, and is configured to provide functions such as audio/video encoding and decoding, input/output coordination, echo suppression, lip synchronization, and the like, and provide an internal interface for a specific function module at the lowest layer. As shown in fig. 8, the lowest layer is a specific functional module, which includes a projection module, an audio output module (speaker), a power module, a network module, a video capture module (camera), an audio capture module (sound pickup), and a corresponding heat dissipation device. Wherein, the heat spreading facility comprises a fan, a soaking plate and a copper pipe. The soaking plates and the copper pipes are arranged among the functional modules in a fusion mode, the copper pipes are connected with the fans, and the fans are used for reducing the heat of the functional modules.

The design flow of the video conference equipment is shown in fig. 9, and the functional design is as follows: the video conference equipment is defined in function and needs to comprise a video acquisition module (camera), a video output module (projector), an audio acquisition module (sound pick-up), an audio output module (loudspeaker), an audio and video coding and decoding module (mainboard), an operation module (touch screen), a wireless network communication module and a power supply module (built-in lithium battery and charging module). And (3) appearance design: the appearance of the equipment is preliminarily designed according to expected installation and application forms of the equipment, different audio and video input and output modes, corresponding interfaces of external equipment and the like. Since video conferencing devices are highly integrated mobile devices, the installation and application form in most cases is a put-on application, for example, on a desktop. The video conference equipment can contain and can turn over a support (the angle between video conference equipment and the desktop is 20 degrees), can turn over one of the effect of turning over a support and provide the angle of raising for the projection, and the other effect provides the space for the bottom heat dissipation. In order to improve the integration level of the video conference equipment, the audio and video input mode is set as an HDMI input and an MIC input; the audio and video output mode is set as two HDMI outputs. Besides the audio and video acquisition equipment (camera and built-in microphone) and built-in sound equipment integrated in the video conference equipment, the video conference equipment can also be externally connected with a microphone, a camera, a display and the like through a standard interface. Layout design: according to the device outline definition, the modules are respectively arranged in the machine body, and the position and the size of each module are defined. For example, the motherboard and each functional module adopt four-pin sockets, and the USB protocol is docked, that is, each functional module can realize quick docking and quick replacement, the overall size is 205 × 130 × 30 (length × width × height mm), the standard thickness of the functional module is 10mm, the thickness of the motherboard is 10mm, and the thickness of the display module is 5 mm. The interface position and the module size of the same functional module are unified, the functional module size is 50 x 10 (length, width and height mm), and the thickness of the heat dissipation channel is 25 mm. Interface design: the functional module and the mainboard are required to have respective interfaces in the connection process, and the interfaces of each functional module are required to be correspondingly designed in order to ensure the butt joint transmission performance of the functional module, the capability of convenient disassembly and assembly and the damage resistance capability of repeated disassembly and assembly. Designing a module: the performance is guaranteed to meet the requirements, the size is guaranteed to meet the appearance design, and then the heat dissipation design is guaranteed. For example, each functional module is powered by 4.2v direct current, the power consumption of the whole mobile phone is lower than 30w, and except for the video output module, the power consumption of the other functional modules is approximately equal to that of the corresponding functional modules in the mobile phone. The camera pixels are 200 thousands, and the capacity of the lithium battery is 4 ten thousand milliamperes, so that the video conference equipment can be used for about 5 hours. Interchange design: for a certain functional module, for example, a power module, multiple capacity lithium batteries can be designed to be selectable, the first battery can be used for realizing split charging, the second battery can be used for selecting batteries with different capacities according to different meeting scenes, and the third battery can be used for supporting power line connection for long-time meetings.

The embodiment of the utility model provides a pair of video communication terminal is applied to in the video conference. The video communication terminal can comprise a control display screen, a mainboard and a functional unit, wherein the control display screen is positioned above the mainboard, and the functional unit is positioned below the mainboard. The functional unit comprises a plurality of functional modules, and each functional module comprises an audio collector, an audio output device, a video collector, a projection module and a network module. The control display screen responds to the operation of a user and generates an operation instruction; the audio collector collects first audio data according to the operation instruction, and the video collector collects first video data according to the operation instruction; the main board carries out coding processing on the first audio data and the first video data; the network module transmits the first audio data and the first video data which are subjected to coding processing to other video communication terminals, and receives second audio data and second video data from other video communication terminals; the main board decodes the second audio data and the second video data; the audio output device performs output operation on the decoded second audio data, and the projection module performs output operation on the decoded second video data.

The embodiment of the utility model provides an in video communication terminal with multiple function module integration, in the video conference is used, need not to install numerous equipment, reduced the occupation in space to and, reduced installation and maintenance cost.

The embodiment of the utility model provides an in video communication terminal adopt the modularized design, arbitrary module goes wrong, can convenient change and maintenance, removes the time and the cost that later maintenance consumes from.

The embodiment of the utility model provides a video communication terminal has got rid of the constraint of circuit, no matter be the network or the power, all has integrateed in the terminal. Therefore, the video communication terminal can be flexibly moved to any place for application. Meanwhile, functional modules in the video communication terminal can be replaced randomly according to actual needs, for example, a wide-angle lens, a zoom lens and the like can be replaced according to actual needs through a camera module, a WIFI module or a 4G/5G module and the like can be replaced through a network module, and when the video communication terminal is flexibly applied, later maintenance is facilitated.

The embodiment of the utility model provides a video communication terminal has integrated nature, portability, scene adaptability and security. The integration performance is that the meeting can be carried out in any place only by one terminal without complex audio and video equipment environment; portability is represented by small terminal size and light weight; the scene adaptability is shown in that corresponding functional modules, such as an audio and video module, a camera module and the like, can be replaced according to different requirements. The security is expressed as being capable of communicating with the video networking terminal in the video networking, has structural security characteristics, and can ensure that video conference data can not be stolen by terminals outside the video networking.

The embodiments in the present specification 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.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The above is a detailed description of the video communication terminal provided by the present invention, and the detailed examples are applied herein to explain the principles and embodiments of the present invention, and the descriptions of the above embodiments are only used to help understanding the method and core ideas of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (10)

1. A video communication terminal is characterized in that the video communication terminal is applied to a video conference and comprises a control display screen, a main board and a functional unit, wherein the control display screen is positioned above the main board, and the functional unit is positioned below the main board;

the functional unit comprises a plurality of functional modules, and the functional modules comprise an audio collector, an audio output device, a video collector, a projection module and a network module;

the control display screen responds to the operation of a user and generates an operation instruction;

the audio collector collects first audio data according to the operation instruction, and the video collector collects first video data according to the operation instruction;

the main board carries out coding processing on the first audio data and the first video data;

the network module transmits the first audio data and the first video data which are subjected to coding processing to other video communication terminals, and receives second audio data and second video data from the other video communication terminals;

the main board decodes the second audio data and the second video data;

the audio output device performs output operation on the decoded second audio data, and the projection module performs output operation on the decoded second video data.

2. The video communication terminal according to claim 1, wherein a plurality of internal interfaces are disposed on the main board, and the control display screen and the functional unit are respectively connected to the main board through the corresponding internal interfaces.

3. The video communication terminal according to claim 2, wherein the audio collector transmits the collected first audio data to the main board through the internal interface connected to the main board;

the video collector transmits the collected first video data to the mainboard through the internal interface connected with the mainboard;

and the main board transmits the first audio data and the first video data which are subjected to coding processing to the network module through the internal interface connected with the network module.

4. The video communication terminal according to claim 3, wherein the main board receives the second audio data and the second video data through the internal interface connected to the network module;

the mainboard transmits the decoded second audio data to the audio output device through the internal interface connected with the audio output device;

and the main board transmits the decoded second video data to the projection module through the internal interface connected with the projection module.

5. The video communication terminal according to claim 2, wherein the main board transmits the encoded first video data and the decoded second video data to the manipulation display screen through the internal interface connected to the manipulation display screen;

and the control display screen respectively displays the first video data after the coding processing and the second video data after the decoding processing in corresponding display windows.

6. The video communication terminal according to claim 2, wherein the plurality of internal interfaces are four-pin sockets.

7. The video communication terminal according to any of claims 1 to 6, wherein the main board communicates with a plurality of the functional modules in the functional unit via a Universal Serial Bus (USB) protocol.

8. The video communication terminal according to claim 1, wherein said functional unit further comprises a plurality of heat dissipating means, said heat dissipating means comprising a fan, a heat dissipating pipe and a heat dissipating fin;

the radiating fins are respectively and correspondingly arranged at the upper parts of the functional modules, and the radiating pipe is connected with the radiating fins;

the fan rotates through the fan blades, and heat of the radiating pipe and the radiating fins is reduced.

9. The video communication terminal according to claim 1, wherein a plurality of external interfaces are provided on the main board, and an external device is connected to the main board through the plurality of external interfaces;

the external device includes a microphone, a display, and a camera.

10. The video communication terminal according to claim 9, wherein the plurality of external interfaces comprise High Definition Multimedia Interface (HDMI), Microphone (MIC), USB.

Images