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Storage method and device of supervision video

A technology for monitoring video and storage devices, which is applied in image communication, parts of color TVs, parts of TV systems, etc., and can solve the problems of judging the importance of files that cannot be recorded.

Active Publication Date: 2015-05-20
浙江华和万润信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the technical problem to be solved in the present invention is to provide a storage method and device for monitoring video recordings, to solve the technical problem that the importance of video files cannot be accurately judged

Method used

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  • Storage method and device of supervision video
  • Storage method and device of supervision video
  • Storage method and device of supervision video

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, a method for storing surveillance videos provided by an embodiment of the present invention includes the following steps:

[0050] S101. During the recording process, record the number of occurrences of active frames.

[0051] Among them, the active frame refers to the key frame whose size exceeds the quiet range. The upper limit and lower limit of the quiet range can be pre-recorded for a period of time in the quiet range environment of the monitoring site, and the maximum value of the key frames in this period of time can be counted. and the minimum value is obtained. During the recording process, it can be performed by setting a counter, the counter is initialized to 0, and when the video coding unit outputs a key data frame whose lower limit value of the quiet range is smaller or larger than the upper limit value, the value of the counter is increased by 1.

[0052]Specifically, the common encoding methods of video data include H.264, MP...

Embodiment 2

[0060] Such as figure 2 As shown, a method for storing surveillance videos provided by a preferred embodiment of the present invention includes the following steps:

[0061] S201. Receive a recording policy set by a user.

[0062] Specifically, a video recording policy for setting through the client is received, and the video recording policy includes parameters such as video encoding method, duration of a single video file, longest video storage time, and concentration statistics time interval. Wherein, the video file duration refers to the content duration of one video file. The maximum storage time of the video refers to the longest storage time of the video file in the storage device, and the video recorded before this time will be deleted first. For example: the encoding method is H.264, the bit rate is 1.5Mbps, the duration of a single recording is 1 hour, the longest storage time is 3 months, the time interval for concentration statistics is 15 seconds, and the numbe...

Embodiment 3

[0107] Such as Figure 4 As shown, a storage device for surveillance video provided by a preferred embodiment of the present invention includes an active frame number recording module 10, an activity statistics module 20, a preservation module 30, a necessary space calculation module 40, a judgment module 50 and a space release module 60 ,in:

[0108] The number of active frames recording module 10 is used to record the number of occurrences of active frames during video recording, wherein active frames refer to key frames whose size exceeds the calm range;

[0109] The activity statistics module 20 is used for counting the activity concentration according to the time of occurrence of the activity frame and the preset time interval;

[0110] The storage module 30 is configured to associate and store the recording time of the video file, the number of occurrences of active frames and the degree of activity concentration when storing the video file as the basis for judging the ...

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Abstract

The invention discloses a storage method and device of a supervision video, and belongs to the technical field of supervision. The method comprises the steps: recording the frequency of a movable frame in the picture recording process, wherein the movable frame refers to a key frame with the size exceeding a peace range; counting the activity concentration ratio according to the time of the movable frame and the preset time interval; carrying out associative storage for a recording time of a picture recording file, the frequency of the movable frame and the activity concentration ratio to be used as an important judgment evidence of the picture recording file when the picture recording file is stored. By adopting the storage method and device, the variation of the key frame of the picture recording file, the recording time and the activity concentration ratio are combined and associatively stored so as to provide the evidence for judging the importance of the picture recording file. In addition, in the circulating storage process of the supervision video, when the storage space is insufficient, the variation of the key frame and the recording time are combined to judge the importance of the picture recording file, so that the picture recording file with low importance can be deleted first, the space can be released for recording new video, and the important historical picture recording file is prevented from being deleted.

Description

technical field [0001] The invention relates to the technical field of surveillance, in particular to a method and device for storing surveillance videos. Background technique [0002] A video surveillance system usually consists of a server, a monitoring terminal, and a control client. Among them, the server is a central node, which maintains the status and attribute information of the terminal and the client, and can also extract video files from the terminal and store them in the backup storage device. The client can set and control the monitoring terminal through the server. The monitoring terminal is usually an embedded system, which is composed of a central processing unit, a memory, a video acquisition unit, a video encoding unit, and a video recording unit. The monitoring terminal software controls the video acquisition unit to collect video, the collected raw video data is input to the video encoding device for encoding, the encoded data is input to the video reco...

Claims

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Application Information

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IPC IPC(8): H04N5/76
Inventor 邓朝潮陈兵秦政栋
Owner 浙江华和万润信息科技有限公司
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