Whether high-definition monitoring can be quickly applied and popularized requires not only the front-end high-definition equipment manufacturers to provide a series of mature high-definition products, but also a flexible and diverse product selection for users to build high-definition monitoring systems. The overall monitoring effect of the HD solution and the cost-effectiveness of popularized applications are also crucial factors.
The premise of HD monitoring application is network
The first thing to consider after collecting high-definition pictures is the problem of video signal transmission. High-definition video places higher requirements on transmission.
A high-definition video signal requires three coaxial cables to be transmitted simultaneously. Digital transmission generally adopts DVI, HDMI or HD-SDI transmission. The transmission distance of DVI or HDMI is only a few meters, which is not suitable for monitoring transmission. Although HD-SDI can transmit about 100 meters, the requirements for coaxial cables are very high The price of the cable is also very expensive. Regardless of analog or digital transmission, the transmission cost of uncompressed high-definition video signals is significantly higher than previous analog standard-definition video signals. When video compression encoding is adopted and transmission is performed through an IP network, the difference in transmission cost between high-definition video and standard-definition video is small.
Therefore, it can be seen that high-definition surveillance must first be based on video compression processing and transmitted through an IP network. Only in this way can the transmission cost of high-definition video be effectively controlled, so that high-definition surveillance is truly practical.
Grind&Brew Coffee Maker,Coffee machine with grinder
FOSHAN FORTUNE ELECTRICAL APPLIANCE CO.,LTD , https://www.coffelady.com