In recent years, with the continuous increase of urban vehicles and population density, the subway has become an important choice for people to travel and alleviate traffic pressure. Various parts of the country have started to increase investment in basic transportation infrastructure. Recently, a large number of Kodi audio and video matrices have been successfully used on Hangzhou Metro Line 2, which has played a practical and significant role in accelerating its transportation informatization construction.

The subway is distributed throughout the city, and the office space belongs to a decentralized structure. Visualization systems can better achieve information exchange, greatly improving the quality and efficiency of communication. However, the construction of the system requires a large amount of equipment support, with matrix products occupying the main position. The Kodi Video Audio Matrix is suitable for various video and audio signal switching system engineering, and the product adopts field reverse switching. The audio supports balanced/unbalanced input and output, with external synchronization signal interfaces, and supports RS-232, RS-422, RS-485, TCP/IP control. All technical indicators have been tested by authoritative departments and meet or exceed the Class A standard for broadcasting. After undergoing inspection and acceptance of uninterrupted operation for 7 × 24 hours, Dalian Kedi has become the preferred brand for the construction of video conferencing systems on Hangzhou Metro Line 2.

Good compatibility, scalability, flexibility and convenience, as well as safety and stability, make Kodi's products enjoy excellent reputation in the industry. With the increasing application of products, as a professional matrix and peripheral product manufacturer, Kodi will continuously improve its technology and service level, cooperate with customers in various industries, and develop more products that are suitable for the market and user needs.