The operation of modern networks has changed from "network-centric" to "customer-centric", and the focus of enterprise competition is also on service quality. "How to meet the needs of users to the greatest extent, how to quickly respond to market changes, how to quickly launch and deploy new services" and so on are the problems that operators must face and urgently need to solve. The resolution of these problems not only depends on accurate, informative and timely information, but also requires fast and accurate decision-making and timely and accurate implementation of decision-making, so as to command and dispatch the implementation of various components of the entire network. Although the integrated network management system can provide some network-wide resource usage and performance parameters and make certain conclusions, due to the lag of technological development and system development, these conclusions are relatively primitive and can only play a role in assisting decision-making. The correct The conclusion still depends on the correct judgments made by many experts on the situation based on current data.
In order to meet the needs of enterprise reform and mobile business growth, meet the challenges of market competition, and take the road of sustainable development, Jiangxi Mobile is preparing to establish a broadband multimedia application platform mainly based on conference TV systems and supplemented by distance education systems. New network management center for central tasks. In the new network management center, the operation and maintenance command and dispatch support system based on the H.323 audio and video interactive platform is one of the core parts to realize its functions. Zhizhen Shitong Technology Co., Ltd. is the best comprehensive solution provider and integrated service provider in the field of multimedia applications in China. With its good market foundation, superb technology and perfect services, the company has become one of the domestic Polycom companies officially signed a contract in China. Level agent, and is the largest integrator of American Polycom company in China. With its strong comprehensive strength, Zhizhengshitong successfully created a video conference system for Hebei Post Bureau.
2. System Overview
Jiangxi Mobile Conference TV and distance education system is based on the Jiangxi Mobile Company's IP network and E1 dedicated line covering the whole province, and is implemented for the realization of visual communication and distance education in cities across the province. Jiangxi Mobile Distance Education System includes provincial companies and 10 municipal branches, Nanchang marketing center, and Nanchang operation and maintenance center. There is a teaching studio in the provincial company and Nanchang marketing center, while the provincial company has the entire network control Dispatch center; In addition, set up a remote classroom in each city branch company and Nanchang operation and maintenance center. The provincial company and its 12 regional branches and centers can conduct high-definition and good interaction through the transmission network to hold the provincial video and telephone conferences, conduct technical exchanges and technical training, conduct technical forums and press releases, etc .; Provide multimedia courseware production, on-demand, broadcast system based on IP network in the province, online teaching system based on WWW, and related remote teaching management system.
3. System function
1. High-level meetings, remote decision-making
2. Department meetings, communication and coordination
3. Remote training and technical exchange
4. Operation and maintenance command and dispatch support
5. Press release, technical forum
4. System Structure
The system is divided into two parts: a video conference system based on two networks of IP and E1 dedicated line and a distance education system based on IP network.
1. The video conference system includes one MCU and 13 Polycom iPower900, which are connected by IP network and E1 dedicated line. In order to expand the functions of video conferencing, we have added a variety of peripheral devices, including: input devices such as physical projectors, whiteboard scanners, wireless microphones, DV31 cameras, color TVs, Mitsubishi projectors and power amplifiers, speakers and other output devices And 8 × 4 video switching matrix.
2. Multi-point data conference is implemented by NetMeeting; the central computer room adopts T.120 server, and the branch company adopts NetMeeting as the client for T.120 sharing.
3. The distance education system includes the classrooms of the provincial center and the marketing center and the remote classrooms of the remaining points. Each teaching classroom transmits the collected data to the WEB server and streaming media server of the provincial center through two IBM microcomputers, and the remote classrooms order various information in the server through the IP network. Live broadcast channel software is installed in each branch venue, which can perform live broadcast in real time through a browser, and can log in to the server for on-demand after the meeting.
The system structure diagram is as follows:
System Features:
Advanced
The system uses industry-leading video conferencing equipment based on the H.323 / H.320 standard. The supporting software uses highly scalable bus and component technologies. The system can run on an IP network and supports MPLS VPN. It also supports E1 dedicated lines.
reliability
The key equipment MCU and terminal of the system must adopt mature products with successful implementation cases of large projects. The equipment software has backup and recovery measures to avoid single point of failure; under special circumstances, such as system failure, it can be recovered within 60 minutes. Ensure stable and reliable operation of the system.
Scalability
Follow international and national standards to support access to various standard equipment. The system has a flexible interface, which is convenient for interconnection with other video application systems and third-party network management systems, so as to achieve flexible expansion of functions and performance, and better improve the efficiency of the system.
Ease of use
In the overall system design scheme, all operations of the equipment can be carried out without any professional knowledge, and the technical requirements of the operators have reached a minimum standard, allowing users to conduct video in a friendly and natural way close to traditional meetings meeting. At the same time, the video equipment should also provide graphical management interface and remote management, maintenance and software upgrade functions to make the system management method more flexible.
safety
The system is equipped with a complete identity authentication and authorization authentication mechanism to ensure safety and reliability. It can prevent unregistered users from illegally using the video conference system.
Standard
The system design complies with the relevant national standards and relevant ITU-T video and audio and data standards, and can exchange information with existing network management systems.
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