What is the difference between a network video encoder and a hard disk video recorder? And bolt machine cameras are the same as security monitoring? What kind of network video encoder used
Network video encoder is the use of front-end analog camera information encoded into digital information, and then transmitted through the network.
The DVR mainly converts the analog video signal into a digital signal for storage (that is, video). Now the hard disk video recorders are generally with network transmission function. Know the product features also understand the use of places, the encoder is generally used for network monitoring.
Network video coding is a professional network transmission device for compressing and processing audio and video data. Mainly to provide video compression or decompression function to complete the image data acquisition or recovery, the current more popular MPEG-4 or H.264-based image data compression through the Internet network to transmit data and audio data processing. And the same bolt, belong to security products. Suitable for viewing images monitored by the camera over the network.
And DVR difference is still very large. Which company model does the video encoder belong to. Generally without storage function, without hard disk. Even if there is a belt, generally only with a hard drive. The recording time is short. Unlike the hard disk video recorder to bring 8 or more than 8 hard drives for storage. And DVR is also divided DVR and NVR. Like the general use of the encoder, is the NVR (network hard disk video) transmission line is through the network cable, rather than dvr is bnc line.
