Mainstream high-definition cameras to monitor the area of the new interpretation of the theme
HD network camera is undoubtedly the first major theme of today's video surveillance. On the one hand, the rapid development of electronic, network technology greatly enhance the value of its application and scope; on the other hand, the rapid expansion of the global security needs as well as users increasingly high requirements also greatly stimulated the development of the network camera.
Network cameras, also known as IP cameras, as the name implies, this type of camera images can be transmitted over the network the other end, a distal end and viewers simply can monitor their images using a web browser. This is a traditional camera and camcorder next generation network technology produced.
But not able to connect to the Internet is the network camera. Network cameras can be divided into two categories, one is a front end to analog CCTV cameras, based plus video processing and network transmission module combination of mixed analog-digital network camera; the second is a pure digital network cameras. The fundamental difference between the two is that the former is still essentially analog cameras, and its implementation mechanism is A / D-D / A-A / D, after two analog-digital conversion, and ultimately the formation of the network signal, can not exceed the highest quality D1. The latter mechanism is the realization of A / D analog signals from a signal directly to the network, thus greatly improving the conversion efficiency, thereby greatly enhancing the quality, due to the improved quality of the snow noise reduction, so although pixels high, but the occupation code flow but not its applicability network better. Because of the superiority of pure digital network camera, the analog network cameras will be phased out in the market.