Many users have made it difficult to install a monitoring system. I don't know if I should choose an analog camera or a network camera. Analog cameras are cheap, network cameras are more expensive, and two-phase trade-offs are made. Many users make decisions about price advantages, and this is often where the analog camera's breakout space is.
Indeed, in the surveillance market, network monitoring has always been a controversial topic. From the perspective of development needs, the advantage of network monitoring is unmatched by analog surveillance. However, the delay in analog monitoring and delay in the market has also caused more reflections. For users, the choice of analog monitoring or network monitoring is also based on their own needs and the performance of the product itself. The imaging effect is still the whole system budget, I believe that every user has a flaw in his heart.
So, what is the difference between an analog camera and a network camera? I believe that everyone can literally draw a rough definition, that is, network cameras can be networked, analog cameras can not, and the specific difference? The author below to summarize.
First of all, the concept should be clarified:
The front end of the analog camera uses an interlaced CMOS/CCD sensor to convert the optical signal into an analog electrical signal, which is then output to the DSP. The DSP performs A/D conversion and color adjustment processing and then performs D/A conversion to PAL/NTSC TV. Signal output.
The network camera is a new generation of cameras combined with analog cameras and network technology. It has an embedded chip and an embedded real-time operating system. The video signals transmitted by the camera are digitized and compressed by a high-efficiency compression chip and transmitted to a Web server over a network bus, enabling authorized users to view, store, and manage video data at a local or remote location through a scaled IP-based network infrastructure.
Second, the performance is very different:
First, clarity. Seeing more clearly is the goal pursued by every user and the ultimate mission of the security industry. The current clarity of network cameras and analog cameras is not comparable. At present, network cameras can already achieve image output of millions, 2 million, 5 million or even 10 million pixels, while analog cameras can only output images of CIF and D1.
Second, manage the differences. The webcam has a built-in WEB that manages and views images using a standard WEB browser on a PC. At the same time, the network camera can also realize remote management and image viewing, and the image data is stored on the remote hard disk, which is easy to search, easy to store, and will not be destroyed. The analog camera is relatively a closed system and can only be monitored internally. Look, you can't monitor it remotely. Video data can only be stored locally, and it can't be viewed remotely. It is easy to be destroyed by criminals.
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