CN109672846B

CN109672846B - Portable conference terminal

Info

Publication number: CN109672846B
Application number: CN201811386268.8A
Authority: CN
Inventors: 彭宇龙; 韩杰; 王艳辉; 崔博
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2018-11-20
Filing date: 2018-11-20
Publication date: 2021-05-14
Anticipated expiration: 2038-11-20
Also published as: CN109672846A

Abstract

The embodiment of the application provides a portable conference terminal, which is applied to a video network and comprises a multimedia acquisition module, a first communication module, a multimedia playing module and a coder-decoder, wherein all modules required by a video conference can be assembled in a miniaturized device by integrating and wirelessly providing the device, so that the conference terminal can be applied to outdoor scenes and is convenient to carry; through integrating equipment, all meeting modules can be opened by one key after the meeting terminal is started, the starting efficiency is higher, and the starting requirement of the temporary video meeting can be met.

Description

Portable conference terminal

Technical Field

The application relates to the technical field of video networking, in particular to a portable conference terminal.

Background

With the rapid development of network technologies, bidirectional communications such as video conferences and video teaching are widely popularized in the aspects of life, work, learning and the like of users.

At present, a conference terminal is a large-size device, is inconvenient to carry, and can realize communication only by various cables, but under some time emergency conference scenes, how to realize a convenient and quick video conference is a problem to be solved at present.

Disclosure of Invention

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

In order to solve the above problem, an embodiment of the present application discloses a portable conference terminal, where the conference terminal is applied to a video network, the video network includes a video network server, and the conference terminal includes:

the codec is respectively connected with the multimedia acquisition module, the first communication module and the multimedia playing module through circuits, is used for encoding local multimedia data acquired by the multimedia acquisition module and sending the encoded local multimedia data to the first communication module, and is used for decoding network multimedia data sent by the first communication module and sending the decoded network multimedia data to the multimedia playing module;

the multimedia acquisition module is used for acquiring local multimedia data and sending the local multimedia data to the codec when receiving the triggering operation of starting the conference service;

the first communication module is in communication connection with the video networking server and is used for receiving network multimedia data sent by the video networking server, receiving local multimedia data sent by the coder and decoder, sending the network multimedia data to the coder and decoder and sending the local multimedia data to the video networking server; the network multimedia data is collected by other conference terminals and uploaded to a video network server;

and the multimedia playing module is used for playing the network multimedia data sent by the coder-decoder.

In a preferred embodiment of the present application, the multimedia capturing module includes:

the video acquisition submodule is connected with the coder-decoder through a circuit and used for acquiring local video data in the local multimedia data when receiving triggering operation of starting a conference service;

and the voice acquisition submodule is connected with the coder-decoder through a circuit and used for acquiring local audio data in the local multimedia data when receiving the triggering operation of starting the conference service.

In a preferred embodiment of the present application, the multimedia playing module includes:

the video playing submodule is connected with the coder-decoder through a circuit and used for playing network video data in the network multimedia data;

and the voice playing submodule is connected with the coder-decoder through a circuit and is used for playing the network audio data in the network multimedia data.

In a preferred embodiment of the present application, the video playing sub-module is a micro projector.

In a preferred embodiment of the present application, the first communication module includes a 4G module and a WIFI module.

In a preferred embodiment of the present application, the conference terminal further includes:

and the second communication module is connected with the coder-decoder through a circuit and used for receiving the multimedia data sent by the external equipment.

In a preferred embodiment of the present application, the second communication module is a wireless high definition transmission HDMI module.

In a preferred embodiment of the present application, the conference terminal further includes a body, a heat dissipation channel is disposed in the body, heat dissipation fans are disposed at two ends of the heat dissipation channel, and the codec, the multimedia acquisition module, the first communication module, and the multimedia playing module are disposed in the heat dissipation channel.

In a preferred embodiment of the present application, a heat conducting grid is disposed in the heat dissipation channel, a first heat conducting plate and a second heat conducting plate are disposed at two ends of the heat conducting grid respectively, and a perpendicular line of the first heat conducting plate and the second heat conducting plate is perpendicular to a central axis of the heat dissipation channel.

In a preferred embodiment of the present application, the codec and the multimedia playing module are in contact with the first heat conducting plate through a heat dissipation substrate, and the multimedia acquisition module and the first communication module are in contact with the second heat conducting plate.

The embodiment of the application has the following advantages:

the embodiment of the application applies the characteristics of the video network, and all modules required by a video conference system, namely a miniaturized coder-decoder, a multimedia acquisition module, a first communication module and a multimedia playing module are assembled in a miniaturized device, so that the integration, integration and wireless of a conference terminal can be realized, the conference terminal is not limited by scenes and can be used in miniaturized conference scenes for a plurality of times, the large-scale use is convenient, the conference is unfolded at any time, the starting efficiency is high, and the starting requirement of a temporary video conference can be met;

the embodiment of the application also has the advantages that through the setting of various video access ports, such as the setting of a wireless HDMI module and a WIFI module, the video access ports are not limited by a single code stream, and a plurality of video pictures can be received and seen at opposite ends;

according to the embodiment of the application, the heat dissipation channel is arranged in the body of the conference terminal, the coder-decoder, the multimedia acquisition module, the first communication module and the multimedia playing module are all arranged in the heat dissipation channel, and the heat dissipation fans at the two ends of the heat dissipation channel introduce air flow during working, so that heat dissipated by the coder-decoder, the multimedia acquisition module, the first communication module and the multimedia playing module can be taken away, the miniaturized conference terminal can be ensured to work for a long time, and each functional module works normally;

this application embodiment still be provided with the heat conduction bars in the heat dissipation passageway, with codec and multimedia playing module through the heat dissipation base plate with the first heat-conducting plate contact of heat conduction bars, with multimedia acquisition module, first communication module with the second heat-conducting plate contact of heat conduction bars can avoid calorific capacity big functional module to cause the influence to calorific capacity less functional module, further improves the radiating effect of calorific capacity great codec and multimedia playing module, reduces the harm to light-emitting components and parts, prolongs its life for the conference terminal who makes is under the small size condition, can guarantee projection output's resolution ratio as far as possible and normal.

Drawings

FIG. 1 is a networking schematic of a video network of the present application;

FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present application;

fig. 3 is a schematic diagram of a hardware architecture of an access switch of the present application;

fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present application;

fig. 5 is a block diagram of a portable conference terminal according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a body of a portable conference terminal according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a heat conducting grid of a portable conference terminal according to an embodiment of the present application.

Detailed Description

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

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.

To better understand the embodiments of the present application, the following description refers to the internet of view:

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 devices in the video network of the embodiment of the present application can be mainly classified 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 this embodiment 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 MAC SA of the ethernet protocol 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 application: 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.

The traditional conference terminal comprises a display, an input device, a camera, a communication device, an audio playing device and the like, the system composition is complex, the volume after the composition is large, when a video conference is started emergently, whether the plugging and unplugging of each cable are normal needs to be checked, then each device, such as the camera, the display and the like, is started in sequence, and the video conference starting efficiency is low; and the system is influenced by wires and can only be used at a fixed position.

Based on the above characteristics of the video networking and the above technical problems, one of the core concepts of the embodiments of the present application is proposed, which follows the protocol of the video networking, and provides a portable conference terminal, including a multimedia acquisition module 52, a first communication module 53, a multimedia playing module 54 and a codec 51, by integrating and wireless devices, all modules required for the video conference can be assembled in one miniaturized device, so that the conference terminal can be applied to outdoor scenes for use, and is convenient to carry; through integrating equipment, all meeting modules can be opened by one key after the meeting terminal is started, the starting efficiency is higher, and the starting requirement of the temporary video meeting can be met.

Example 1:

as shown in fig. 5, a block diagram of a portable conference terminal according to an embodiment of the present application is shown, where the conference terminal may be applied to a video network, where the video network includes a video network server, and the conference terminal may specifically include the following modules:

the codec 51 is connected with the multimedia acquisition module 52, the first communication module 53 and the multimedia playing module 54 through circuits, and is configured to encode local multimedia data acquired by the multimedia acquisition module 52 and send the encoded local multimedia data to the first communication module 53, and decode network multimedia data sent by the first communication module 53 and send the decoded network multimedia data to the multimedia playing module 54;

a multimedia acquisition module 52, configured to acquire local multimedia data when receiving a trigger operation for starting a conference service, and send the local multimedia data to the codec 51;

the first communication module 53 is in communication connection with the video network server, and is configured to receive network multimedia data sent by the video network server, receive local multimedia data sent by the codec 51, send the network multimedia data to the codec 51, and send the local multimedia data to the video network server; the network multimedia data is collected by other conference terminals and uploaded to a video network server;

a multimedia playing module 54, configured to play the network multimedia data sent by the codec 51.

The multimedia acquisition module 52 and the codec 51 of the embodiment of the present application are connected by a circuit. In a video conference, video data and audio data need to be collected, so the multimedia collection module 52 may specifically include the following sub-modules:

the video acquisition submodule is connected with the codec 51 through a circuit and is used for acquiring local video data in the local multimedia data when receiving a trigger operation of starting a conference service;

and the voice acquisition submodule is connected with the codec 51 through a circuit and is used for acquiring local audio data in the local multimedia data when receiving a trigger operation of starting a conference service.

The video acquisition submodule can be a small or miniature camera, and the voice acquisition submodule can adopt a small independent microphone or an earphone with a voice input function. When the power of the conference terminal is turned on and a trigger operation for turning on the conference service is received, the video acquisition submodule and the voice acquisition submodule are respectively and automatically started to acquire video stream data and audio stream data in the current environment, and then the acquired video stream data and audio stream data are sent to the codec 51 as local multimedia data.

The codec 51 receives video stream data and audio stream data as local multimedia data, then encodes the video stream data and the audio stream data, respectively, and transmits the encoded data to the first communication module 53; meanwhile, the network multimedia data sent by the first communication module 53 can be decoded and sent to the multimedia playing module 54. The codec 51 of the embodiment of the present application may preferably adopt a haisi Hi3798 codec 51, the maximum coding capability of the chip is two-way 1080P @30fps, and the video capture sub-module in the multimedia capture module 52 captures one-way 1080P @30fps video stream. Therefore, the first communication module 53 of the embodiment of the present application includes a 4G module and a WIFI module at the same time, and a second communication module 55 is further disposed in the conference terminal, where the second communication module 55 is connected to the codec 51 through a circuit and is used for receiving multimedia data sent by an external device; the second communication module 55 preferably adopts a wireless high-definition transmission HDMI module, so that the conference terminal can also select one path of WIFI or 1080P @30fps of one path of wireless HDMI for input, and can also select two paths of 720P @30fps for input at the same time. Therefore, in the video call process, when the video stream collected by the camera is transmitted, at most two subcode streams can be provided, namely, the wireless HDMI module can simultaneously receive signals transmitted from other user terminals (such as a computer and a mobile phone), such as some text messages of PPT, Word and the like; the WIFI module can use some wireless devices, such as mobile phones, signals transmitted by tablets and the like.

The first communication module 53 of the embodiment of the present application communicates with the video networking server based on the video networking protocol, and can receive the network multimedia data sent by the video networking server, receive the local multimedia data sent by the codec 51, send the network multimedia data to the codec 51, and send the local multimedia data to the video networking server. The network multimedia data mentioned in the embodiment of the present application is also a video stream data and an audio stream data, and is the pictures (i.e. video stream data) and voice inputs (i.e. audio stream data) of the current users in their own environment collected by the multimedia collection module 52 of other conference terminals. Similarly, the first communication module 53 sends the encoded local multimedia data to the video networking server, and then the encoded local multimedia data is forwarded by the video networking server, so that the conference network multimedia data exists in other conference terminals.

The multimedia playing module 54 may receive the network multimedia data decoded by the codec 51, and according to the above, the network multimedia data also includes video stream data and audio stream data, so the multimedia playing module 54 of the embodiment of the present application may specifically include the following sub-modules:

the video playing submodule is connected with the coder-decoder 51 through a circuit and is used for playing network video data in the network multimedia data;

and the voice playing submodule is connected with the codec 51 through a circuit and is used for playing the network audio data in the network multimedia data.

According to the practical application requirement of the video conference, the video playing sub-module of the embodiment of the application can adopt a micro projector. The codec 51 and the pico-projector may be connected through a DLP circuit, so as to realize the projection output of the video stream. Similarly, through the setting of the wireless HDMI module, the video stream can also be transmitted to other user terminals for display, so that the dual-screen output of the multimedia data in the embodiment of the present application can be realized. The voice playing sub-module can adopt a sound box or an earphone with a voice input function, and the earphone comprises a left sound channel and a right sound channel.

In the embodiment of the present application, a power module is further built in, and the power module is respectively connected to the codec 51, the multimedia acquisition module 52, the first communication module 53, and the multimedia playing module 54 through a circuit, so as to provide a duration for the conference terminal for a certain time. The power module can preferably adopt a lithium battery, and is environment-friendly and durable.

To sum up, this application embodiment can realize integration, integration and the wireless of conference terminal through assembling all modules that video conferencing system needs, miniaturized codec 51, multimedia acquisition module 52, first communication module 53, multimedia play module 54 in a miniaturized equipment promptly for conference terminal does not receive the scene restriction, can many fortune be arranged in miniaturized conference scene, and the extensive use of being convenient for expands the meeting at any time, and starts efficiency higher, can satisfy the demand of opening of interim video conference.

In addition, according to the embodiment of the application, through setting of various video access ports, such as setting of a wireless HDMI module and a WIFI module, the video access port is not limited by a single code stream, and a plurality of video pictures can be received and seen at an opposite end.

Example 2:

as shown in fig. 6, in a preferred embodiment of embodiment 1 of the present application, a schematic structural diagram of a body 01 of a portable conference terminal according to the embodiment of the present application is shown, the conference terminal may further include the body 01, a heat dissipation channel 02 is disposed in the body 01, two ends of the heat dissipation channel 02 are respectively provided with a heat dissipation fan 03, and the codec 51, the multimedia acquisition module 52, the first communication module 53, and the multimedia playing module 54 are all disposed in the heat dissipation channel 02.

In the using process of the conference terminal, as the video stream needs to be played on the screen, especially when the video stream needs to be played in a projection mode, strong light source support is needed, so that the heat productivity of the whole terminal device is large. In order to meet the normal heat dissipation of each module of the terminal, the volume of the conventional conference terminal is generally large so as to ensure that each functional module can work normally and durably.

In view of the above problems, the preferred embodiment of the present application further defines the structure of the body 01 of the conference terminal, a heat dissipation channel 02 is disposed in the body 01 of the conference terminal, the codec 51, the multimedia acquisition module 52, the first communication module 53, and the multimedia playing module 54 are all disposed in the heat dissipation channel 02, the heat dissipation fans 03 at the two ends of the heat dissipation channel 02 introduce air flow during operation, and can take away heat dissipated by the codec 51, the multimedia acquisition module 52, the first communication module 53, and the multimedia playing module 54, so as to ensure that the miniaturized conference terminal of the embodiment of the present application can work for a long time, and each functional module works normally.

Some current mobile phones also have a projection function, but the projection function of such mobile phones has many defects in use: firstly, the battery endurance is just like the current smart phone, and the large screen has multiple functions, so that the small-capacity bottleneck of the battery is very obvious originally, and after the projection function is added, the energy consumption of the battery is greatly accelerated, so that the electric energy of the battery is exhausted in no moment when a user watches videos through the projection function, and the use experience of the user is greatly influenced; secondly, the projection brightness is unsatisfactory, and due to the restriction of the light source of the LED and the consideration of the power supply, the brightness of the projection mobile phone is generally below 50 lumens; thirdly, the heat dissipation is poor, because the main function of the mobile phone is conversation, the mobile phone needs to be used in a close range, and the mobile phone is not interfered by other sounds when being used in a close range, so that a heat dissipation device cannot be installed in the mobile phone, but the long-time work of the equipment under the condition of poor heat dissipation can cause the damage of a light-emitting component, and the service life of the LED is shortened.

Because the conference terminal in the embodiment of the present application does not need to be used in a short distance, the heat dissipation fan 03 can be used for dissipating heat, and can be manufactured into a size of a common smart phone, and in view of the technical problems existing in the current mobile phone with a projector, the heat conduction grid 04 is further disposed in the heat dissipation channel 02 in the embodiment of the present application, as shown in fig. 7, a schematic structural diagram of the heat conduction grid 04 of the portable conference terminal in the embodiment of the present application is shown, two ends of the heat conduction grid 04 are respectively a first heat conduction plate 041 and a second heat conduction plate 042, and a perpendicular line of the first heat conduction plate 041 and the second heat conduction plate 042 is perpendicular to a central axis of the heat dissipation channel 02. Through the arrangement of the heat conducting grid 04, the heat of the codec 51, the multimedia acquisition module 52, the first communication module 53 and the multimedia playing module 54 can be guided to the central axis of the heat dissipation channel 02, and the heat dissipation speed of the conference terminal is increased.

Further, in the preferred embodiment of the present application, the positions of the functional modules of the conference terminal are further defined, which may specifically be as follows: the codec 51 and the multimedia playing module 54 are in contact with the first heat conducting plate 041 through the heat dissipating substrate 05, and the multimedia capturing module 52 and the first communication module 53 are in contact with the second heat conducting plate 042.

In the actual operation process, the heat generation of the codec 51 and the multimedia playing module 54 is the largest in the conference terminal, and the ambient temperature is also high. The preferred embodiment of the present application divides the positions of the functional modules in the heat dissipation channel 02, and brings the codec 51 and the multimedia playing module 54 with large heat generation into contact with the first heat conduction plate 041 through the heat dissipation substrate 05, meanwhile, the multimedia collection module 52 and the first communication module 53 with smaller heat productivity are contacted with the second heat conduction plate 042, so that the heat dissipation area can be increased, meanwhile, the codec 51 and the multimedia playing module 54 with large heating value can be prevented from influencing the multimedia acquisition module 52 and the first communication module 53 with small heating value, so that each video conference function module can work normally, the heat dissipation effect of the codec 51 and the multimedia playing module 54 is further improved, the damage to the light-emitting components is reduced, the service life of the light-emitting components is prolonged, the manufactured conference terminal can ensure that the resolution of projection output is normal as much as possible under the condition of small volume.

In a specific application, the first heat-conducting plate 041 and the second heat-conducting plate 042 may both be graphene heat-conducting plates, and the heat-conducting grid 04 connecting the first heat-conducting plate 041 and the second heat-conducting plate 042 may be made of a heat-conducting copper grid.

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 of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present application 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 application 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 application 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 application. 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 application 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. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.

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 detailed description is given to the portable conference terminal provided by the present application, and a specific example is applied in the detailed description to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A portable conference terminal, wherein the conference terminal is applied to a video network, the video network includes a video network server, and the conference terminal includes:

the multimedia playing module is used for playing the network multimedia data sent by the codec in a projection mode;

all modules required by a video conference are assembled in the conference terminal, the conference terminal starts all conference modules by one key after starting, and the conference modules comprise the coder-decoder, the multimedia acquisition module, the first communication module and the multimedia playing module, so that the conference terminal is not limited by scenes and is convenient for developing the conference at any time;

the conference terminal also comprises a machine body, wherein a heat dissipation channel is arranged in the machine body, two ends of the heat dissipation channel are respectively provided with a heat dissipation fan, and the codec, the multimedia acquisition module, the first communication module and the multimedia playing module are all arranged in the heat dissipation channel;

the heat dissipation channel is internally provided with a heat conduction grid, the two ends of the heat conduction grid are respectively provided with a first heat conduction plate and a second heat conduction plate, and the vertical lines of the first heat conduction plate and the second heat conduction plate are perpendicular to the central axis of the heat dissipation channel.

2. The terminal of claim 1, wherein the multimedia capturing module comprises:

3. The terminal of claim 1, wherein the multimedia playing module comprises:

4. The terminal of claim 3, wherein the video playing sub-module is a micro projector.

5. The terminal of claim 1, wherein the first communication module comprises a 4G module and a WIFI module.

6. The terminal of claim 1, wherein the conference terminal further comprises:

7. The terminal of claim 6, wherein the second communication module is a wireless high definition transmission (HDMI) module.

8. The terminal of claim 1, wherein the codec and multimedia playing module are in contact with the first heat conducting plate through a heat dissipating substrate, and the multimedia capturing module, the first communication module are in contact with the second heat conducting plate.