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How about the Development of Video Conference Industry

Issuing time:2019-09-05 15:07Author:zonda.cam@gmail.com

How about the Development of Video Conference Industry?

1. Overview of video conference industry

Video conferencing is developed from voice communication and data communication. It can perform two-way video, voice and multimedia synchronization between peer-to-peer or multi-point, achieve near-face-to-face communication effects, and integrate voice communication and data communication functions. It is an inevitable trend in the development of telecommunications.

The SARS incident in 2003 opened the window for the rapid development of video conferencing market. After the continuous advancement of technology, the full launch of government information construction, the acceleration of Internet bandwidth and the decline of tariffs, video conferencing market has entered a period of rapid growth. The video conferencing market is currently concentrated in government departments and large institutions in the education, medical, and financial industries. It is mainly based on self-built video conferencing, that is, the user purchases a full set including platform equipment, terminal equipment, audio and image acquisition equipment, and display equipment. The video conferencing product is transmitted on a dedicated network and is responsible for operation management and daily maintenance. The construction cost is high, but it has good audio and video communication quality and high confidentiality.

In terms of system structure, most of the current video conferences adopt the MCU architecture, that is, the MCU (Multipoint Control Unit) is used as the central platform device, which is responsible for access, data processing, network processing, and conference management of all video conference terminals, and multiple units. Multi-level cascading of MCUs or multi-machine stacking at the same level for large-scale networking. Through the tree-shaped multi-layer MCU architecture formed by cascading and stacking technologies, users can build a large-scale video conferencing system covering the whole country, effectively solving the requirements for instructions and deployment work within the user.

Since 2010, the application of “cloud computing” has become more and more extensive, which has also promoted the video conferencing industry to enter a new stage of development. "Cloud computing" is a new type of business computing model. The basic concept is to automatically split large computing tasks into countless smaller data through the network, and then process it by a large platform composed of multiple servers. resource sharing, flexible architecture, and reduced terminal processing burden. The "cloud computing" based video conferencing system is no longer a hierarchical architecture, but a network-based, non-hierarchical mesh architecture. Video conferencing based on "cloud computing" can not only implement instruction uploading, but also realize daily collaborative communication between departments without being restricted by meeting resources.

2. Trends of video conference industry

With the advancement of technology and the continuous development of market demand, the video conferencing industry has shown the following developments trend:

(1) "Cloud computing" drives the rapid development of the video conferencing industry

With the increasing processing power of large computer servers, "cloud computing" has developed rapidly in recent years and has gradually been applied in the video conferencing industry. Video conferencing based on "cloud computing" has two characteristics compared with the traditional method:

  1. Good system capacity flexibility: Traditional video conferencing provides scalability through MCU expansion, forming a hierarchical architecture, and the construction investment cost is higher, while In the "cloud computing" mode, flexible, fast and low-cost dynamic configuration capabilities can be provided through the "cloud platform", and the system capacity can be smoothly expanded.

  2. Friendly user experience: When a traditional video conference is held for a multi-point conference, it can only be convened by the network management system, and the use is limited. The cloud computing conference system realizes that each point can be arbitrarily held to solve the problem of ease of use and the use of the device. The efficiency is greatly improved, which helps the system to be promoted.

    The above characteristics of "cloud computing" have brought the development of the video conferencing industry in two directions.

First, for large departments of government departments and education, medical, financial and other industries, there are often a large number of multi-sectoral and multi-level communication needs. By building a dedicated “cloud platform” – “private cloud” conference platform, All end users are directly connected to the cloud computing center. The number of conferences and the size of a single group can be flexibly configured and expanded. Users can freely apply for and use conference resources without restrictions. In addition to meeting the basic requirements of the government, they can also meet the basic requirements of the government. Freely carry out frequent office communication within departments, between departments, and even between individuals. As a result, the “Private Cloud” platform extends video conferencing from large conference room deployments to departmental conference rooms and personal desktops, further expanding the self-built video conferencing market.

Second, the "cloud computing" technology has greatly improved the computational efficiency of the processing platform, and the centralized processing of video conferencing has thus achieved technical realization, which has led to the rental business model of video conferencing. Vendors in the industry can build a public “cloud platform” – “public cloud” conference platform to provide users with video conference rental services. In the lease mode, users only need to rent video conferencing services through software accounts and purchase a small number of terminal devices, which saves a lot of platform equipment purchase, central network costs and daily maintenance costs. With its low cost and high flexibility, the rental model has greatly improved the efficiency of the use of central equipment, bandwidth and maintenance personnel, and reduced the cost of users. It has a large number of remote communication requirements for video conferencing but is cost sensitive. The corporate market has opened up new development space.

The video conferencing system based on "cloud computing" has spawned a new model of rented video conferencing, which reduces the cost of system construction and drives the rapid development of the video conferencing industry. As an indispensable terminal device for video conferencing, especially the camera for image acquisition and processing functions, it has ushered in a huge space for development.

(2)   High Definition becomes the mainstream

The image clarity of video conferencing has been continuously improved with the advancement of technology, and high-definition video conferencing has gradually become the mainstream.

Standard definition (SD) is a physical resolution below 720P, usually using D1's video format, while high definition (HD) is a physical resolution of over 720P. According to the definitions of the Society of Motion Picture and Television Engineers (SMPTE), the ITU (ITU) and the State Administration of Radio, Film and Television, there are currently three main types of HD video formats: 720P (1280*720 resolution, 16:9 widescreen display, progressive scan); 1080i (1920 * 1080 resolution, 16:9 widescreen display, interlaced); 1080P (1920*1080 resolution, 16:9 widescreen display, progressive scan).

The continuous development of video codec technology is the technical basis for high-definition video conferencing. Only efficient video encoding and decoding can ensure large-capacity video transmission in a realistic Internet environment, so that high-definition images can be presented. The currently widely used video codec standard is the H.264 standard, which combines the characteristics of high compression ratio and high quality and smooth, and defines four different configuration levels, that is Baseline Profile, ExtendProfile, Main Profile and High Profile. And H.264 High Profile is the most effective video coding technology between H.264 system.Save 30%-50% bandwidth to BaseLine Profile under the same image quality, 720P video can be transmitted in a 512K network bandwidth.

The use of efficient codec technology enables high-definition video conferencing to run on common broadband, 4G, and satellite networks, saving users a lot of network bandwidth costs and increasing the popularity of video conferencing. The new codec standard H.265 has a greater efficiency improvement than H.264. In the future, it will move toward higher data compression ratio and higher quality smooth image direction, thus driving the video conferencing system to a better application experience and more. Low application cost advances. In the process of increasingly high definition and complexity of codec standards, companies in the industry need to continuously increase the research and development strength to carry out continuous algorithm optimization research on codec standards, and develop a full range of products supporting new standards, thus greatly testing the enterprise. Continuous research and development capabilities.

(3) Telepresence is an important direction for video conferencing development

Telepresence is an important development direction of the video conferencing system in the future. It refers to a series of innovative technologies in the fields of integrated network communication, ultra-high definition video encoding and decoding, spatial speech, architectural acoustics, space lighting and ergonomics. A video conferencing system that realizes a real sense of presence.

The outstanding advantage of telepresence compared to traditional video conferencing is that it can create a sense of zero distance in a conference room with different parties. Although the traditional video conference overcomes the spatial difference and realizes the remote communication, the feeling is always “remote communication”, which can not make the user completely ignore the distance of the space, and the remote presentation realizes the life-size picture transmission and the sound. The combination of recognition and eye interaction makes the participants immersive and achieves a true zero distance.

To ensure the effectiveness of the conference, telepresence uses a number of technologies and designs that are especially innovative for real-life experiences, including high-definition cameras and displays, high-fidelity microphones and sound systems, and high-compression and reproduction-capable video and audio codec algorithms. And equipment, as well as high-simulation venue environment design. Telepresence requires restoration of authenticity. Image processing of video conferencing becomes extremely important. The closer the image processing is to reality, the better the effect of telepresence. Therefore, the pursuit of video conferencing in the heart of the drive, will promote the camera to a higher definition, more stereoscopic direction.

3. Market situation in the video conferencing industry

With the increase of network bandwidth and the reduction of tariffs, the development of video conferencing technology and product cost have decreased, the user base of video conferencing has been increasing, and the market scale has been expanding. In the field of downstream users, it has been expanding its industry, extending its applications to the next level, expanding from large conference rooms to departmental conference rooms and desktop terminals. In terms of application functions, it has evolved from simple video communication to distance learning. And training,

Telemedicine, remote access, remote access, visual command and dispatch, etc.

After years of development, the market size of video conferencing in China accounts for 10-15% of the global market, becoming the second largest video conferencing market after the United States.

In the future, China's video conferencing market will continue to be affected by the needs of users in the existing government and public services industries, showing a steady growth trend. At the same time, with the improvement of the network environment, the improvement of equipment processing performance and the launch of video conference leasing business, The enterprise market will inject new demands into the video conferencing industry.

The expansion of market demand in the video conferencing industry is mainly driven by the following areas:

  • Government

The government market is currently the main market for domestic video conferences, covering government departments such as public security inspection, armed police, fire, military, and national land. Video conferencing systems have traditionally been used primarily by government agencies. Since the staff of the government departments are spread all over the country, the spirit of the decree from the ministries and commissions to the county and township authorities is very complicated. It is often necessary to hold centralized meetings at various levels, which consumes a lot of manpower and material resources. Through the application of video conferencing systems, government departments can achieve high-quality communication and information sharing, reduce travel time and economic costs, and embodies the spirit of “during diligence and saving, against extravagance and waste”. In addition to teleconferencing, the video conferencing system can also be applied to visual command and dispatch, remote justice, collaborative office, etc., while improving the work efficiency of the office staff, and promoting the collaborative relationship between the organizations.

The future video conferencing system will continue to continually integrate with government official services, thus creating a new way of serving the people. In line with the trend of video conferencing market solution, high definition, integration, telepresence, and mobileization, the future government departments' deepening application requirements, high-definition transformation needs, expansion requirements, and huge increments to the grassroots level will effectively promote the video conferencing market steady growth.

  • Enterprises

At present, the status quo of management communication of domestic enterprises presents two distinct characteristics:

First, with the development of the economy and the enterprise itself, the number of enterprises with branches has gradually increased, and the cost of travel in different places has gradually increased, requiring an economical and convenient video conferencing system to reduce Travel cost;

Second, many enterprises face the problem of poor internal communication and low management efficiency. Enterprises urgently need to use video conferencing to solve these communication problems in order to face fierce market competition. Therefore, video conferencing has a huge market space in the enterprise market with its strong remote communication capabilities.

Unlike the government and large institutions, most companies are less sensitive to the investment cost of equipment and lack of professional and technical personnel. They are less willing to invest in a more expensive complete video conferencing system. Therefore, the development of video conferencing in the enterprise market has been slow. With the rapid development of "cloud computing" technology, the adoption of "public cloud Video conferencing system lease mode fully meets the needs of the enterprise market, enterprises only need rent a vendor's conference service without the need for platform equipment, professional maintenance personnel, and no need to purchase a central point a wide meeting can be held. The video conferencing product in the lease mode can greatly reduce the cost of the enterprise.

On the other hand, it can greatly improve the communication efficiency of the enterprise, and the communication scope can be extended from the enterprise to the enterprise.

External, even the entire industry chain upstream and downstream, thus opening up new developments in the enterprise market for the video conferencing industry space.

From audio to video, and synchronous interaction with data, is an inevitable trend of communication. Video communication between enterprises and individuals is simple, convenient and economically affordable. It is the largest market space for video conferencing in the future. The cloud-based video conferencing model is the basic channel for developing this huge potential market.

At present, the domestic enterprise video conferencing market is still in the process of cultivating and developing, and the overall scale is relatively small, but due target to the vast number of ordinary enterprises, the huge market base will bring a huge demand, and the future part of the city the field will also become an important part of the video conferencing industry market.

  • Education

In recent years, with the continuous deepening of education informationization, video conferencing system has been extended to the various fields of education as an intuitive, efficient, timely and low-cost remote communication tool, covering distance training, on-demand broadcasting, Remote observation and evaluation, network teaching and research, and other aspects.

With the help of remote training and on-demand online learning system, the travel cost of the trainees is greatly saved, the problem of learning time conflict is solved, and the bottleneck of teachers' resources is liberated. Through the use of remote observation and evaluation, the observers can be comprehensive without having to go to the teaching site. Objectively understand the actual teaching situation of teachers, examine the teaching level of teachers, provide a basic guarantee for teaching reform, optimize teaching resources, and improve the efficiency of teaching management; effectively break through regional restrictions through cross-regional network teaching and research, and make schools and research The organization has established a new communication channel based on the video conferencing system to jointly carry out various cooperations such as teaching and scientific research.

  • Healthcare

The healthcare industry is another important application area for video conferencing systems in the public service industry in recent years. The video conferencing system realizes interactive remote sharing of medical materials and remote video and audio information, and can be widely used in remote surgery guidance and teaching, telemedicine consultation, remote diagnosis, ICU intensive care unit visit, chief physician rounds and other telemedicine serving.

The remote surgery guidance and teaching system can provide better medical education and guidance for medical staff in remote areas, wild and small and medium-sized hospitals, and medical students. The telemedicine consultation system enables patients to receive in specific places such as family health centers and original hospitals. Remote expert or multi-party diagnosis to improve the efficiency of medical experts and reduce the time and cost of patients traveling in different hospitals; remote diagnostic systems can allow doctors to break through the limits of geographic scope system, sharing patient cases and diagnostic images; ICU intensive care unit visiting system can remotely visit, monitor and record the patient's condition throughout the process, avoid entering the scene and cause infection in critically ill patients; the chief physician's ward system can relieve the chief physician. The pressure of going back and forth to improve the efficiency of experts to ward round, so that more patients enjoy the services of experts.

Keywords: video conference industry development

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