Network Camera IP Camera = ordinary surveillance camera cctv analog camera Network Video Server
Network Camera IP Camera: with network cameras, IP network directly through the cable transmission signal, connected to the network, general surveillance camera cctv analog camera: to provide the analog signal.
Network Camera IP Camera with all-digital processing technology, CCD sensors capture images for ADC output digital signals after that if the use of CMOS sensors (integrated ADC and DSP), can direct the output digital signal, subsequent processing and All digital signal transmission. This all-digital approach through several times without the conversion between analog to digital in order to avoid a number of conversion may lead to loss of image quality. All-digital interface, to avoid signal interference, transmission distance limitations.
Analog cameras are technically more mature, the variety is also very rich applications are very common, but if you want to achieve long distance transmission, need the help of other devices, such as Optical, or video server. Higher integration network cameras can be connected directly to IP networks, enabling network video transmission. For the single point of network access, network cameras than analog cameras video server, more advantages in cost.
General control analog cameras CCTV analog camera, the CCD sensor to capture the image. CCD camera through the digital conversion, image processing (internal DSP), digital-analog conversion, the final output analog signals. Camera output images can be used for different applications, such as can be connected with the matrix, through the video switch to display; also be connected with DVR, digital storage; also be linked with DVS, the compressed transmission through the IP network.
This article comes from Tang Wei video official web site:
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