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The high-definition video transmission system adopts advanced modern information technology, network technology and management technology to build an advanced, practical, safe and reliable computer network transmission system, providing high performance and high reliability for community video surveillance, information sharing, data storage and other applications. The basic network transmission environment and operating platform, and follow the following design principles.

1. The design of the video transmission system follows the principles of advanced and practical

Adopt advanced, mature and practical technology, equipment and materials to design and build a video surveillance network transmission platform. At the same time, under the premise of meeting current and future application requirements, taking into account future business development, the entire network transmission system can maintain technical It has good openness and development potential to meet the needs of massive video data transmission and storage in the future.

2. The design of the video transmission system follows the principles of safety and reliability

In order to ensure the safe and reliable application of various services of the video surveillance system, the video transmission system design must have high reliability, and there must be no single point of failure or the entire transmission system collapses due to a terminal failure.

3. The design of the video transmission system follows the principles of economy and investment protection

While ensuring the advanced nature and high reliability of the network transmission system, the project should be able to be constructed with a high performance/price ratio to maximize the capital output and input ratio; it should be able to achieve a lower cost after completion , Less personnel input to maintain the normal operation of the system, to ensure the high efficiency and high efficiency of the system; at the same time, in the system design and equipment selection, the investment in capital and technology of each police station should be fully considered, and the existing capital and technology should be retained as much as possible. Some network and security system equipment.

4. The design of the video transmission system follows the principles of flexibility and scalability

The design and selection of the video transmission system must have good flexibility and scalability, and can provide the functions of expanding equipment capacity, increasing the number of users, and improving service quality according to the needs of the continuous development of public security services, and has the ability to support a variety of networks. The ability of transmission protocols and multiple physical interfaces provides flexibility for technology upgrades and equipment upgrades. Access layer, aggregation layer and core layer switches can provide a certain number of optical port backup. In the process of capacity expansion, it should not affect the users who have already accessed the network, and the work of the users should not be affected when the aggregation layer or core layer switches perform software upgrades.

5. The design of the video transmission system follows the principle of easy management and maintenance

With the continuous development of video surveillance and multimedia information services, management tasks are bound to become increasingly heavy. Therefore, the design and selection of network wireless transmission systems must have good manageability and easy maintenance. The equipment and materials used in the transmission system should be as uniform as possible to effectively simplify the daily maintenance work of network managers and provide a strong guarantee for the safe and reliable operation of the entire physical layer network.