Although experimenting with different methods (stitching, ie the serial transmission of partial images), but without success. With the further development of the camera sensors in the megapixel range, however, the analog technology reached its limits, since it was not possible with conventional technology to transport video signals with more than the VGA / D1 via the coaxial cable. With the introduction of network technology, it was possible to use the recorder (or storage media such as network storage NAS) not only as a local recording device, but as a central server and storage for all cameras available in the network, regardless of location. The analogue surveillance technology was coined by the term CCTV (Closed Circuit TV), as the surveillance systems were closed systems without access from outside and without the possibility of networking. This is the biggest advantage of IP technology over analog systems.
IP cameras work with a network protocol, so they can be integrated into any network. What is the difference between analog surveillance cameras and IP cameras?Īnalog cameras need the coaxial cable to connect to the recorder. This technique has prevailed in recent years, although the DVR is still used as a hybrid solution in existing systems with analog camera technology. In contrast to the so-called DVR recorders, which record the video signals from analog surveillance cameras (hybrid solutions can manage both analog cameras and IP cameras), the NVR recorder is only suitable for the recording of IP cameras, ie network cameras.
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