Hangzhou Hopechart IoT Technology Co., Ltd.

The Difference Between Mobile DVR And Ordinary Video Hard Disk Video Recorder

As one of the most important functions of vehicle video surveillance equipment, the capability of audio and video codec is one of the key competencies of a vehicle digital video recorder. On this point, there is no essential difference between the vehicle video recorder and the ordinary video recorder. They both choose the mainstream video codec chip and adopt the mainstream codec format to find the maximum harmony between coding efficiency and image definition. At present, most of the decoding methods of ordinary car video recorder adopt the H.264 standard.

There is a big difference between the common DVR and the vehicle DVR in the use and acquisition of video. It is also used in truck video system. Common DVR is often used in fixed places and won't be moved casually. It can be displayed locally or through a fixed network (ADSL) access monitoring network. Any observation point in the network can access the DVR host through the network. The vehicle DVR can only monitor the special network through 3G/4G access. Therefore, vehicle DVR pays more attention to the control of bitstream, while ordinary DVR weight more on the priority of image quality. H.264 has high quality and fluency images with high compression ratio, that's why H.264 is more economical and the compressed video data needs less bandwidth and in network transmission.

Common DVR is often used in fixed places and won't be moved casually. It can be displayed locally or through a fixed network (ADSL) access monitoring network. Any observation point in the network can access the DVR host through the network. The vehicle DVR can only monitor the special network through 3G/4G access. Therefore, vehicle DVR pays more attention to the control of bitstream, while ordinary DVR weight more on the priority of image quality. H.264 has high quality and fluency images with high compression ratio, that's why H.264 is more economical and the compressed video data needs less bandwidth and in network transmission.
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