IP transmission solution based on studio NDI technology

The studio is a conventional base for TV program production. During the program production process in the studio, most of the cameras are connected with the production center using SDI video cables. The bandwidth and cable problems required for video transmission are becoming more and more prominent, and the existing technical architecture of TV stations based on SDI baseband video interfaces and dedicated SDI digital video matrix has been difficult to meet. With the development of ultra-high-definition technologies such as converged media and 4K, the advantages of studio IP signal video transmission solutions are: IP network coverage is large, transmission technology is mature; wiring is simple, reusable equipment; compared with traditional equipment, it saves investment; and The IP signal compression coding method is very mature, and the IP process of upstream and downstream services and related equipment is also accelerating. All of these have led to the trend of the future development of TV media in the entire Taiwanese IP.
SDI traditional cable layout, high cost, short transmission distance,
many cables, short transmission distance: Inside the TV station, one cable can only carry one SDI TS signal. In this case, thousands of SDI cables are required. Bundled together, once a failure occurs, they cannot be replaced, and only cables can be added. The TV station is not easy to maintain and the expansion cost is high.
SDI signal transmission distance limitation: The transmission distance of SDI signal is not more than 100 meters. Some existing lines cannot transmit high-definition program signals. In the process of transmitting high-definition video, it is easy to deform and generate errors, resulting in image distortion. SDI HD products and their transmission cables and back-end storage products have monotonous varieties and relatively high prices, resulting in fewer system options and higher overall cost.
Use NDI technology to make IP-based production simpler
What can NDI bring?
NDI is a signal transmission protocol based on local area network, which has the characteristics of low latency, accurate frame video, mutual identification and communication of data streams, that is, one in the local area network. The device can output or receive multiple NDI signals through a network cable, which can completely replace the SDI video cable for transmission.
Using NDI network interconnection, traditional SDI/HDMI video signals can be reliably transmitted to IP-based on-site production equipment, such as various software and hardware production equipment, video mixers, image systems, etc., without the need for complicated connections. You save complicated equipment costs and maintenance costs. You don’t need to be affected by physical factors such as space, distance, and access rights. You don’t need to lay audio and video cables between different locations. You don’t need a professional engineering team. As long as the IP network, you can connect to various production equipment in different locations and build quickly. Your lightweight studio.
NDI can realize multi-channel transmission. Each signal source can be used as a target of multiple receivers. The NDI data stream of any device can also be interconnected. In addition, for complex multi-process program production workflows, deployment After NDI, each work link can be processed online in a distributed manner in parallel, which greatly improves the efficiency of program production.
Traditional encoding requires inputting the IP address and then obtaining the IP address through decoding. NDI is automatically discovered. As long as the front end is connected to the NDI device, the back end automatically receives the device data. NDI transmits audio and video signals through the network, and can flexibly obtain any signal input and output. NDI can flexibly choose from more types of video input sources.
NDI encoder makes your program production convenient and smooth.
Based on the NDI video encoder provided by Qianshi Electronics, the cameras in the studio can be captured by production equipment through a local area network (ultra-low latency) without complicated SDI connections. Your program production is more convenient and smoother. As long as the camera is connected to a miniature NDI video encoder, the SDI or HDMI signal of the camera can be converted into NDI signals, which can then be collected by various production equipment.
System icon: camera—NDI encoder—LAN—production equipment (or other equipment)