1, hard disk video recorder: that is, digital video recorder. Compared with traditional analog video recorder, hard disk video recorder is used.

2. Embedded hard disk video recorder: refers to a non-PC system, in which the internal operating system and application programs are written on storage chips such as FLASH, on-chip disk or single chip microcomputer, and are oriented to specific applications.

Second, the characteristics are different.

1, hard disk video recorder: It is a computer system used for image storage and processing, and has the functions of long-term video recording, audio recording, remote monitoring and control of image/voice, etc.

2. Embedded hard disk video recorder: It is mainly based on computer and digital technology, so it is easy to apply mature fault-tolerant technologies in various computer fields to the system, so that the reliability of monitoring video information is more guaranteed.

Third, the function is different.

1, hard disk video recorder: monitoring function, video recording function, playback function, alarm function, control function, network function, password authorization function and work schedule function.

2. Embedded hard disk video recorder: The monitoring function is one of the most important functions of embedded hard disk video recorder. Whether the camera picture can be monitored clearly in real time is a core problem of the monitoring system. Most embedded hard disk video recorders can be monitored clearly in real time.

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