(1： What is network video server and webcam? With what effect? 1: Network camera network camera is a new generation product combining traditional camera and network video technology. In addition to all the image capture functions of general traditional camera, it also has built-in digital compression controller and web-based operating system, so that video data can be sent to end users through LAN, Internet or wireless network after compression. The remote user can use the standard ie viewer on his own PC to access the webcam according to the independent IP address of the webcam, monitor the situation of the target site in real time, and edit and store the image data in real time. In addition, he can control the pan tilt and lens of the camera through the network for all-round monitoring.??? From the perspective of external structure, there is an integrated model with embedded lens in the market. The lens of this network camera is fixed and cannot be replaced; The other is to replace the standard c/cs lens as required, but the C lens must be installed with a CS-C converter. But in terms of internal composition, no matter which model, the basic structure of the network camera is mostly composed of lens, filter, image sensor, image digital processor, compression chip and a server with network connection function.?? As a new member of the camera family, network cameras also have the same operating performance as ordinary cameras, such as automatic white balance, electronic shutter, automatic aperture, automatic gain control, automatic backlight compensation and other functions. On the other hand, due to the network function of the webcam, it can support multiple users to connect at the same time. Some webcams also have dual channel function, which can realize both analog output and network digital output at the same time.? 2: Network video server (video encoder)& amp; amp; nbsp; From a certain point of view, the video server can be regarded as a webcam without lens or a DVR without hard disk. Its structure is also generally similar to that of a webcam. It is composed of one or more analog video input ports, image digital processors, compression chips and a server with network connection function. The video server digitizes the input analog video signal and transmits it to the network in the mode of digital signal, so as to achieve the purpose of remote real-time monitoring. Since the video server successfully "converts" the analog camera into a network camera, it is also the best way to integrate the network monitoring system with the current CCTV analog system.??? In addition to the same functions as the webcam, the video server is more flexible in device configuration. Network cameras are usually limited by their own lens and fuselage functions. In addition to ordinary traditional cameras, video servers can also be connected to cameras with some special functions, such as low illumination cameras, high sensitivity infrared cameras, etc.?? At present, the video servers in the market are mainly 1-way and 4-way video input, and have the function of remote control of PTZ and lens on the network. In addition, the products can also support real-time audio transmission and voice intercom functions. Some video servers also have the functions of dynamic detection and alarm after an event. The application of network cameras has made a qualitative leap in image monitoring technology. First of all, the generic cabling of the network replaces the traditional video analog cabling, realizing the real integration of the three networks (video, audio and data), and the plug and play of the network camera, which makes the project easy to implement and the system easy to expand; Secondly, cross regional remote monitoring becomes possible, especially with the use of the Internet, image monitoring has no distance limit, and the image is clear, stable and reliable; Moreover, image storage and retrieval are very safe, convenient, remote storage, multi machine backup storage and fast non-linear search
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The installation of network camera is completed in one minute doc....)
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