What is an HD-SDI camera? What are the advantages?

What is HD-SDI

HD-SDI is a real-time, uncompressed, high-definition broadcast-grade camera. It is another technological advancement in the field of security monitoring, providing high-definition image source equipment for the monitoring center.

In the field of security, the application of HD products is in full swing. Digital HD with ONVIF and PSIA as the alliance and HD-cctv as the alliance are gradually occupying the market of high-definition products in the future, and HD-SDI camera products have also embarked on the starting line of the security market. High-definition products in the security market through many years of accumulation, from the initial analog monitoring to the subsequent network monitoring, network monitoring derived on the basis of high-definition network monitoring, and HD-SDI digital high-definition monitoring is the future development of the entire security market. The digital signal processed by the HD-SDI product is transmitted through the coaxial cable. The video interface of the product is the BNC port. The transmission cable used is the national standard "75-5" video cable often seen in the project. Due to the habit of most users, Many contractors, including Party A, are accustomed to calling HD-SDI digital HD "analog HD". In fact, this is a mistake. Based on the characteristics of HD-SDI camera products, the product advantages are summarized as follows:

Because the equipment is connected by BNC interface, that is to say, in the process of converting the existing traditional analog frame system to a high-definition monitoring system, there is no need to re-wiring and only the front-end and back-end parts need to be replaced, which will save huge time for the project. Cost and labor costs.

Because the system framework adopted for the HD-SDI camera product construction and the analog monitoring system frame are the same, the system wiring can be realized with a 75-5 coaxial cable, and construction workers and system operators do not need training and it is easier to get started. Uncompressed HD-SDI cameras, unlike IP surveillance, transmit video signals through the network after compression and packing. They use uncompressed digital signals to transmit on the coaxial cable at high speed. The original image will not be distorted. High-definition real-time HD-SDI camera monitoring is not affected by the transmission network, there will be no image delay caused by IP network monitoring, in real-time monitoring and high-definition requirements.

The resolution of the video output image of the HD-SDI camera device is 1920×1080, and the camera dot density per unit area is greatly reduced. Provide more details on the monitoring site, such as seeing the face and seeing the license plate.

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