Thursday, March 3, 2011

Video conference system hardware and software (1)

Current video conferencing industry is becoming increasingly popular, video conference system was also ruled by a hardware video conferencing software and hardware of the situation into a draw to many enterprises choose video conference system, do not know what exactly is software or hardware,, great CEOs said, do not know what to believe who said that, as with its many years of experience in the field of video conference, both video conference presentations and is the difference between finishing as follows for the preparation of user reference!

1. hardware video conference system and its features

Hardware video is based on the embedded schema, rely on video communication DSP + embedded software for video and audio processing, network communications and conferencing capabilities.

Its best feature is the high-performance, reliability, most high-end video applications using a hardware video mode.

Hardware video conference system mainly includes embedded MCU, room Terminal, Desktop terminal equipment.

Which the MCU is deployed in the Network Center, responsible for the processing of the stream and forwards; Conference Room Terminal is deployed in a conference room, and the camera, microphone, TV, and other peripheral devices to the Internet; Desktop terminal with integrated small cameras and LCD displays that can be placed on the desk as a dedicated video communication tools. Hardware video conference system advantage 1, integrated high hardware video terminal provides a variety of audio interfaces and network communication interface, there are also built-in video matrix function, when used, simply join the external audio input/output device and access the network, you can use. Hardware multipoint control unit (MCU) can integrate multi-picture splits, T.120 data services, GK, digital audio mixing, and other hardware modules, their integration is much better than software system used by more than one server.

2, has the extremely high security and stability of embedded schemas inherently good antivirus capabilities, network spread of 99 percent of the viruses cannot attack the embedded system.

Design based on DSP processor for hardware video conference equipment with very low power consumption and good stability, some high-end hardware video conference equipment also has key processing unit backups, redundant cooling, hardware AES encryption, firewalls and other features that further protect system security and reliability, the realization of the network of 7 × 24 hours non-stop running.

3. audio effects with real-time operating system and efficient codec technologies, hardware video conferencing products video quality in General, higher than the software product, Visual, audio synchronization is also very easy to implement.

Hardware video conferencing products can integrate video preprocessing, video optimization, audio optimization technology to further enhance the video and audio effects.

4, operation, flexible hardware video Terminal General integrated remote control function, the computer is not familiar with remote staff and OSD menu for video conference set up and operate.

Of course, hardware video conference system can also be set via PC and operation, convenient to major meetings and control and management.

5. have good QoS guarantee system hardware video conference system can support RSVP, Diff Serv, QoS technologies, and through various types of underlying control and processing technologies to support video conferencing in network quality is not good for a good run.

6, supports a wide range of communication network hardware video conference system may also support the H.323 and H.320 two system standard that can be adapted to the special line or Ethernet network transport of all kinds.

Hardware video conference system weaknesses 1, price slightly higher hardware video conference system uses a high-performance DSP processors and dedicated to the operating system, the technical content is significantly higher than software video conference system, the product price is slightly higher.

2. desktop extension requires software support although currently has a pure hardware desktop Terminal, but its prices are more expensive, and requires the office location information with the second.

Many hardware video conferencing system will extend through the software to your desktop, convenient desktop application form, and cost savings.

3. investment risks higher thanks to a dedicated system, hardware video conference system completely is a one-time investment, cannot like software system used by a server application that can be used as the other.

Therefore the user in the Select hardware video conference system must take into account the system scalability and upgradeability, as to the next higher bandwidth network of support and the support of the new features. In this context, the modular design of the hardware devices are better than all-in-one hardware device. [1] [2]

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