【 Weak current College 】 network video conferencing system advantages and characteristics---Power By 【 China power house network 】

Preface
With the development of the society, person-to-person communication is becoming more and more frequent, but on the one hand a high travel costs while increasing operational costs, on the other hand external risk factors such as security and disease transmission and other unexpected factors limiting face-to-face communication. But video conferencing system is a good way to solve both problems. The use of video conferencing, people don't have to meet and spend considerable time and money from one location to another location, greatly reducing the administrative cost; while videoconferencing can also interact in real time of the document, the process of recording, archiving and playback at any time when required, in order to facilitate the process and the meeting of the Conference the results of the comprehensive monitoring and summary.

Currently, video conferencing in many developed countries have been widely used. To make extensive use of a video conference system: a case study of the United States, within the Administration, Executive power is a great release, technical progress has brought a decision more transparent and science-based, decision makers can more easily master the large amounts of information, the Assistant role for decision-making is extremely favorable. In business, video conferencing software application accelerates the production cycle, it is important for manufacturers. In the United States: a case study of pharmaceutical industry, the former United States drug dealers before the introduction of new drugs, they must be to the United States food and Drug Administration for approval, the doctor or scientist to do this you need to travel to Washington, d.c., this is a very lengthy process, take several months or years. Since a few years ago, the FDA uses a video conference system, the food and Drug Administration directly through video conferencing assessment of medicines that shortens product cycle time, production time aheadof 6-8 months. At the same time, it will also provide enterprise saves millions of dollars in costs. We can see that video conferencing is a very effective means of communication.

Video conferencing brings to you, not just lower your administrative costs, network-based video conferencing also brings you the benefits of many specific.
Currently, most government agencies and enterprises and institutions have established their own IP networks that implement the OA and other traditional data management system. IP-based video conferencing system, you can make full use of existing resources, avoid the redundant investment, most greatly possibly reduces the cost for a high performance-price ratio.

You can easily add many IP network, which is the traditional video conferencing are incomparable. For example: in addition to the implementation of audio and video communication, you can realize remote control, data sharing and file transfer capabilities. And you can and traditional OA, ERP and business systems, highly integrated, compatible, complementary and boost computer network application level and work efficiency.

Video conference system in addition to traditional video conference features can also be applied to the control. The Terminal for low-cost video collection, video conference, you can easily achieve large-scale video surveillance. In the key points and industry, the public security departments to show.

-Video conference system for another application is the education and training. School looking to reduce costs, attract a variety of teaching students, organizations often have a variety of needs for training, they can use lingtong video conference system so that schools can recruit specialists for distance education, and make full use of their own teaching resources, and organizations can at any time, convenient for developing multimedia training. In applying the lingtong video conference system for enterprises, training effect is satisfactory. From this perspective, the video conferencing return on investment makes it possible for students to receive all-round education, also close distance of the world.

Due to the height of the video conference system with real-time, certain indicators or even exceed the broadcasting system, as long as you enter the video conferencing equipment and associated connecting audio-visual equipment, video conference system can be well used in the field of broadcasting, on-demand. United States cable TV NBA has chosen satellite systems, satellite car, sometimes, a traditional satellite car will cost more than $ 5 million. If you use video conferencing system, not only to providing high quality, high-definition video, audio, and also save considerable costs. In addition, they can use video conferencing system to interview, select the appropriate NBA players, save a great deal of cost.

Video conferencing overview video conferencing is the use of broadband networks video communications service mode. In streaming media technology as the core, at the same time supports the C/S and B/S structure, to video conferencing as the core versatile and multi-purpose video communication services platform, the system to achieve pure software, after three years of production, by the China Beijing Software Promotion Center organization rigorous testing, has reached the level of the Telecom-grade. Is currently the technology advancement and product maturity both a leading multimedia communications software.

Is a modern enterprise Office of communications software. Fully modern office building for the enterprise multimedia communications software. You can easily implement video conferencing, instant messaging, multimedia, information sharing, coordination office, and other advanced information communication function. No need to purchase high price video conferencing hardware, can realize remote video Office, at the same time, applicable to any industry information application, as long as there is a computer with the Internet making it easy to achieve, but also for the development of different industry characteristics, such as the professional version is aimed at education of remote education Edition, for government institutions-Government Office of the Chief communication systems, for commercial enterprise business office systems.
◆ Conference control and role
1 control mode and diverse:
Chairman of the control mode, brainstorming mode, automatically open mode. Three models, the meeting time can toggle, can be preset.
2 roles clearly defined permissions hierarchy, control of ordered:
Administrator, President, spokesman, freedom rights user, to observe the user, the user rights for each class, the meeting to order and simple to maintain.
Convene a meeting, or the establishment of the Office Online, you can preset permissions and roles. You can change the invitation, roles, and permissions.
3 support for many people the same role and management of delivery:
BranchHolding more applied the same Conference administrator, at different times of the different participants, different from the administrator.
Support for the President: in meeting, participants can see more of the President to communicate at the same time, more than the equivalent of the rostrum.
¡Ô basic functions
1 audio and video:
Picture control, adapt to different applications:
Six types of screen layout mode, automatically covers all the screen layout style. Hall mode designed for large-scale professional Chamber application design, automatic identification of double screen, data and video applications to distinguish accommodate large environment, suitable for large-scale lectures, training.
Breakout session view, multiple picture patrol.
2 powerful electronic whiteboard function:
Write to the administrator to control:, President authorization to write.
Function: write, draw, typing, mapping, and paste words and pictures, screenshots, features such as save and clear; in English, Chinese writing, musical three types of electronic paper. Add a page, drag the synchronization. Support tablet, hardware Whiteboard. Support for late comers to automatically refresh the recent content.
3 comments for IE, in collaboration with:
In the meeting all synchronized browsing, open Web pages, exclusive to enjoy, the Chairman may carry out Web collaborative annotation features.
4 dynamic speech:
Unique screen flow control technology, support PPT, courseware and other dynamic presentations. Support full-screen, file, window three lecture. Applies to software presentations, software training, dynamic presentations. Support the speaker the mouse trajectory, participants stylus indicates.
5 high privacy network cabinets:
Upload and download files, for payment of Conference materials, collaborative working interact in the user file.
6 media file broadcast:
Support for common media file broadcast, by installing third-party plug-ins, you can play any media files. Media broadcasting sound and microphone sound isolation, independent output, you can dynamically adjust the application can be used for background sound.
7 voting system:
Multiple-selection and radio voting, not real-name registered. At the same time, support for multiple topics.
8 meeting information:
Enter the meeting before the user can accept to participate in the meeting notice, view session information. Is Chairman of the meeting, or administrator, you can publish the medium of advertisement information, such as: speech by so-and-so, feeds for XXXX, followed by a certain person, Executive summary-XXXX, and so on.
9 Conference record and playback:
Meeting record permissions: allows you to record and do not allow two records.
Records: all audio, video, whiteboard, speeches, media, radio, text-chat content.
Session records can be encrypted. Playback requires a password to open.
Recording playback: double-click to open the log file can be automatically played back.
10 remote control adjustment:
Provides point-to-point remote assistance: to help each other make device and system settings.
At the meetings, the administrator can remotely adjust the participant's audio and video equipment. Reduce on-site maintenance and management of workload.
PTZ control: support for the popular PTZ control protocol, and at any time according to user needs Add.
11 meetings confidential:
Public meeting: all users can see the list in the meeting of the Conference.
Open encrypted session: all users can see the list in the Conference session exists, but the lock identifier, only the invited person, get a password and administrator in the meeting in order to enter. Password set by the administrator, you can change at any time.
Confidential Conference: building, choose not to open. Confidential meetings do not appear in the uninvited persons meeting list
Video conference system parameters
• IP video conferencing standards: ITU H.323
• Data conferencing standards: ITU T.120
• System protocols: Q.931, H.225.0, RAS, H.245
• Interactive multimedia standards: MPEG-4
• H.264 video encoding standards:
• Audio coding standard: G.729, GSM or iLBC
• Network protocols: TCP/IP UDP
• Real-time transmission, control protocols: RTP/RTCP
• Quality control: QoS
• Video encoding formats: DV (360 * 720 * 576 288 180 * 144) VGA (640x480) SIF/QVGA320x240) CIF (352x288) QCIF (176x144) QSIF/QQVGA (160x120)
• Screen stream encoding format: SXGA (1280 x1024), XGA (1024 x768), SVGA (800 x600), VGA (640x480)
• Broadcast streaming media files: SIF/QVGA (320x240)
• Image formats (Image Format/Color space): RGB24, YUY2, I420, RGB555, RGB32
• Supports network environment: Internet, Intranet, VPN, LAN, WLAN, CDMA, microwave, satellite, wireless network
• Supports bandwidth: 40Kbps-10Mbps, support manual adjustment and adaptive bandwidth
• Frame rate: 1 ~ 30fps
• Head: Omni-directional, 360 °, 180 °
• Decoder Control Protocol: PELCO-D, HY, VICON, DH,RM11、HTWY、SONYD100 TP20、CAM
• Serial interface RS232 RS485 communication protocol:
• Serial interface: COM1 to COM9
• Single point PTZ control quantity: 1 ~ 64