How long can surveillance video be kept?

The calculation formula for the storage time of surveillance video is "storage time = storage device capacity / (recording quality Quality, recording duration, recording system settings, etc. Detailed introduction: 1. Storage device capacity. Surveillance videos are usually stored in hard drives, network storage devices or cloud storage. The capacity of the storage device determines the number and size of video files that can be stored. A larger storage capacity can store more files. Video files to extend the storage time, etc.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

The storage time of surveillance video depends on many factors, including the capacity of the storage device, video quality, video duration, video system settings, etc. The following will introduce some key factors that affect the storage time of surveillance video.

1. Storage device capacity: Surveillance video is usually stored on a hard drive, network storage device or cloud storage. The capacity of the storage device determines the number and size of video files that can be stored. Larger storage capacity can store more video files, thereby extending the storage time.

2. Video quality: Video quality refers to the resolution, frame rate and compression method of the video. Video files with high resolution, high frame rate and lossless compression will take up more storage space, thus shortening the storage time. Conversely, lower recording quality can reduce storage requirements and extend retention time.

3. Recording duration: Recording duration refers to the length of recording time every day. If you need to save the video for a long time, a shorter video duration setting can extend the storage time. For example, only record during a specific time period or when there is activity.

4. Recording system settings: The recording system usually provides some setting options, such as loop recording, motion detection and alarm recording, etc. Loop recording will automatically overwrite earlier recording files to maintain a certain storage space. Motion detection and alarm recording can record according to the activity, reducing the number of invalid recordings and extending the storage time.

Based on the above factors, a specific storage time cannot be given. Different surveillance systems have different storage requirements and setup options. The following is a simple calculation formula that can be used to estimate the storage time of surveillance videos:

Save time = storage device capacity / (recording quality x recording duration x number of video files)

Need to pay attention Note that this is only a rough estimate, and the actual storage time may be affected by other factors, such as the read and write speed of the storage device, the performance of the recording system, etc.

In order to extend the storage time of surveillance video, you can take the following measures:

1. Increase storage capacity: Use a larger capacity hard drive, network storage device or cloud storage to provide more of storage space.

2. Reduce video quality: Reduce the resolution, frame rate and compression ratio of the video to reduce the size of the video file and extend the storage time.

3. Adjust the recording time: adjust the recording time according to actual needs, and only record when necessary.

4. Optimize the recording system settings: According to the actual situation, reasonably set options such as loop recording, motion detection, and alarm recording to reduce the number of invalid recordings.

5. Regularly back up and clean up recordings: Regularly back up important recording files to other storage devices, and then clear out recording files that are no longer needed to free up storage space.

The storage time of surveillance videos needs to be determined according to the specific surveillance system and requirements. It is recommended to select and adjust storage devices according to actual conditions to meet storage needs and security requirements.

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