【School】 Chunlan weak video conferencing program analysis --- Power By 【China】 weak home network.

<br> a background overview of <BR> Chunlan (Group) Corporation is a manufacturing, research, investment, trade in one of the diversified, high technology, international large modern companies, is the largest 50 business groups .. .Chunlan headquarters under the jurisdiction of 42 independent subsidiaries, including 18 manufacturing companies, and has Chunlan Research Institute, Chunlan College, Chunlan post-doctoral workstations and Chunlan Electric Institute, Chunlan Motor Research Institute, Chunlan electronic and other research, educational institutions .. .<BR> Changing due to market information, the group need to respond quickly, it may fully grasp the market. .Rapid feedback on market information to decision-making, enhance service quality, reduce operating costs, the Group decided to introduce high-level video conferencing system. .<BR> <BR> <BR> Second, the user needs <BR> the face of numerous subsidiaries and distribution outlets to participate in relevant meetings of personnel becoming Chunlan need to face a large expenditure, and because of the large number of .scattered throughout the country, the meeting place of choice to coordinate arrangements for the parties to work to become a cumbersome and time-consuming entry thing, in this case, the Chunlan Group decided to build a video conferencing system. .The construction of the video conferencing system should be able to meet the various regions to the meeting venue at the same time, and can two-way audio and video communication. .The participants do not need two-way video, should be able to make it through one-way PC-to watch and listen to the live conference. .For the main venue, should be able to meet the leadership of the main venue of the conference also attended the meeting to watch the picture of the situation and can any one venue on the remote control camera. .<BR> <BR> <BR> Third, the application features <BR> 1, the meeting can be a variety of modes: the above video conferencing system design is completed, can be used for the following meetings: <BR> ▲ support the President complete control .pattern of meetings, in which the meeting mode, viewing the object of the conference venue completely specified by the center, leading the freedom to choose and select any venue poll to watch, together with the remote camera control functions DSTH.323MCS President venue for any .control of the venue of the camera view to adjust to the appropriate location and compare this model applies to President speech patterns. .<BR> ▲ also supports voice-incentive model, the model without administrator management, application and free discussion of the meeting. .<BR> ▲ mix by DSTH.323MCS, mute, Mute function, and "conspired meeting" to discuss a few venues can be individually and not by other unrelated to the venue to hear, and without interrupting the meeting. .<BR> ▲ meeting in the President's speech patterns in order to fully ensure order at meetings, the general venue is not free speech, such as the special circumstances need to speak, can speak through the hand-held remote control application for approval by the leadership, the party can speak .. .<BR> <BR> 2, remote camera control application: In the meeting which, generally have their own arrangements for each camera position the venue to venue transmit the image itself to other venues to watch, but this approach often fails .The main venue to meet the goals you want to adjust the viewing needs. .For example, when a speech at the venue, the other venue is sometimes necessary to view the panorama hall, sometimes watch a spokesman, a spokesman for the venue if the statement continues to change, but also need to change the view objects. .In this case, if the primary site can not be according to their own desire to adjust the camera shooting the object of the venue, the meeting of the effect would be unimaginable. .<BR> According to this demand, DSTMedia supported cameras as the industry's first remote control (FECC) function of MCU manufacturers, making it MCU multipoint conference held in the remote camera can be easily controlled, and in cascade .Among the meeting, this feature can also ensure a smooth implementation. .In this way, but the main venue of the speech venue to watch anywhere and people can easily be adjusted. .<BR> <BR> 3, the terminal application requests to speak: in Chunlan video conferencing and remote training, often have the following scenario: when the President or the speech of teaching personnel, other participants are sometimes .requests to speak, but to ensure that the meeting order at meetings, often speaking in advance of the conference will not be a mute, so that the venue will not be able to speak to say a word. .To resolve this conflict, DSTMedia MCU support R & D is muted in the case of the terminal by remote control for the floor, so that both the order and ensure the meeting expressed their requests to speak. .<BR> <BR> 4, TV wall server applications: video conferencing system in Chunlan, we applied the multi-screen video wall server, can well meet the high-end users for high-definition video conferencing, multi-screen applications .the venue will be 46 by 46 television screens to display simultaneously. .TV wall server is a separate hardware device, used in the center of the video conference system main venue, directly connected by cable 100M MCU, the panel on a single server with 8 composite video output terminal, built-in decoder 16 to achieve two .block independent display card output. .Video cable can be connected directly to the different display devices. .Each TV can display at the venue or a separate split-screen mode to display more than one venue, the video resolution is 4CIF, frame rate 25-30fps. .<BR> <BR> 5, the user group management application: Chunlan Group video conference system for all users to group management, which is an advanced design concepts, greatly facilitate the users. .The specific advantages are as follows: <BR> ▲ user group management is simple and intuitive, users can quickly find the user group, and its operation; <BR> ▲ Conference when the user changes the case of regular, group management can .greatly reduce the complexity of the user's operation, the number of users, the more you can show the advantages of grouping; <BR> ▲ When the user needs initiated through a terminal session, use the grouping feature will greatly reduce the burden of meeting organizers, it is conceivable .If there is no user group, the user terminal in the use of the launch meeting, the need to individually enter the name of the venue, if the venue is large, the organization who is a considerable burden, and use the group, regardless of the number of users, organizations who are only .need to enter a group name to complete the call to all terminals, is very convenient. .<BR> <BR> 6, multicast applications: multicast service is based on the IP network protocol under the application of one of the most basic way, it can be said to be inherent in an IP network a very useful advantage. .As the meeting room capacity is limited, the number of people attended the meeting to be limited. .But many meetings always want more and more people understand the spirit of the instructions to the conference. .For this problem, the MCU DSTMedia has multicast capabilities to live in real time the meeting is sent to stream media to the network. .Customers only need to use the PC, and use the appropriate receiver can receive the live broadcast of the meeting, but not limited the number of people watching. .<BR> <BR> Four runs feedback <BR> Chunlan Group is the video conference "to eat crabs", back in 2001 to enable this system. .Because this program to build in technology, application models are highly representative repeatedly been rated as excellent third party solutions, but also by numerous corporate video conferencing systems as building a model. .<BR> Using this system, Chunlan's senior management and marketing staff all over the frequent communication between the can and exchanges, timely and accurate transmission of sales policy and market information, thus greatly improving the speed of market response and sales supervision. .In addition, the Chunlan meeting in the use of the system, it is also the system for overseas employees with remote training, technology and marketing strategy discussions and other activities, the indirect economic benefits are far greater than the direct savings in the cost of traditional contributions. .According to the data revealed Chunlan Group, the introduction of a corporate video conferencing systems management, the year will save about 30 million yuan fee, which greatly reduces the cost of business operations. .<BR> <BR> <BR>.