CN104408109B - Alarm video recording method for recording and device - Google Patents
Alarm video recording method for recording and device Download PDFInfo
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- CN104408109B CN104408109B CN201410681450.1A CN201410681450A CN104408109B CN 104408109 B CN104408109 B CN 104408109B CN 201410681450 A CN201410681450 A CN 201410681450A CN 104408109 B CN104408109 B CN 104408109B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Television Signal Processing For Recording (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
The present invention is suitable for videoing skill field, provides a kind of alarm and records a video method for recording and device, the method includes:Under alarm mode, video file of pre-recording is recorded, the video file of pre-recording is saved in magnetic disk storage;When receiving alarm command, stop recording video file of pre-recording, and starts to record alarm video file;At the end of video file of alarming is recorded, the alarm video file is saved in magnetic disk storage, and by the video file of pre-recording labeled as alarm video file.The present invention video file that will pre-record is stored in magnetic disk storage, and more memory spaces are provided for video file of pre-recording, to obtain video files of more pre-recording;And pre-record video file and alarm video file store in magnetic disk storage, avoid in existing method to the copy for preserving video file of pre-recording in memory, can reduce the consumption of Installed System Memory, further increase the efficiency of system operation.
Description
Technical field
The invention belongs to videoing skill field more particularly to a kind of alarm video recording method for recording and device.
Background technology
Surveillance video is by recording the letter of the video under the video information in each period, especially alarm condition
Breath, subsequently to check that alarm condition provides reference frame.Existing alarm video recording method for recording mainly opens up one in memory
Block caches, for storing the video file prerecorded;And the storage alarm video recording in external memory, and will prerecord
Video file copy in the external memory, and the time of modification alarm video recording is the time of video file of pre-recording.
However, since Installed System Memory is limited, usually only hundreds of MByte, therefore, the advance record that existing method obtains
The video file of system usually only tens seconds;And due to the memory for occupying system, cause the operating rate of system low.
Invention content
In consideration of it, the embodiment of the present invention is to provide a kind of alarm video recording method for recording and device, it is more pre- to obtain
It records video file and improves the operating rate of system.
In a first aspect, a kind of alarm video recording method for recording is provided, the method includes:
Under alarm mode, video file of pre-recording is recorded, the video file of pre-recording is saved in magnetic disk storage;
When receiving alarm command, stop recording video file of pre-recording, and starts to record alarm video file;
At the end of video file of alarming is recorded, the alarm video file is saved in magnetic disk storage, and will be described
Video file of pre-recording is labeled as alarm video file.
Further, described under alarm mode, recording video file of pre-recording includes:
It pre-records video file according to preset time interval loop recording;
Hide the video file of pre-recording.
Further, described to include according to preset time interval loop recording video file of pre-recording:
Start to record video recording, records the initial time of recording;
When recording time often passes through a preset time interval, the video recording boil down to recorded in time interval is recorded a video
File, and record current recording time;
When the difference of the recording time maximum value and recording time minimum value that are recorded is more than twice of prefixed time interval,
The corresponding video file of recording time minimum value is deleted, and deletes the recording time minimum value, the recording time is maximum
It is video file of pre-recording to be worth corresponding video file.
Further, the method further includes:
Pattern switching instruction input by user is being received, is being switched to from alarm mode in normal mode;
In the normal mode, common video file is recorded;
When receiving alarm command, stop recording common video file, and starts to record alarm video file;
At the end of video file of alarming is recorded, the alarm video file is saved in magnetic disk storage, and will alarm
Common video file in preset time range before instruction is labeled as alarm video file.
Further, when being switched to normal mode from alarm mode, the method further includes:
Delete the video file of pre-recording recorded under alarm mode.
Second aspect, provides a kind of alarm video recording record device, and described device includes:.
Video Pre-recording module, under alarm mode, recording video file of pre-recording, the video file of pre-recording being saved in
Magnetic disk storage;
Alarm picture recording module records video file of pre-recording for when receiving alarm command, stopping, and starts to record report
Alert video file;
Memory module, at the end of video file of alarming being recorded, the alarm video file being saved in disk and is deposited
Reservoir, and by the video file of pre-recording labeled as alarm video file.
Further, the Video Pre-recording module includes:
Loop recording unit, for pre-recording video file according to preset time interval loop recording;
Hidden unit, for hiding the video file of pre-recording.
Further, the loop recording unit is specifically used for:
Start to record video recording, records the initial time of recording;
When recording time often passes through a preset time interval, the video recording boil down to recorded in time interval is recorded a video
File, and record current recording time;
When the difference of the recording time maximum value and recording time minimum value that are recorded is more than twice of prefixed time interval,
The corresponding video file of recording time minimum value is deleted, and deletes the recording time minimum value, the recording time is maximum
It is video file of pre-recording to be worth corresponding video file.
Further, described device further includes:
Handover module is switched to normal mode for receiving pattern switching instruction input by user from alarm mode;
In the normal mode, the module of pre-recording is additionally operable to:Record common video file;
The alarm picture recording module is additionally operable to:When receiving alarm command, stop recording common video file, and start
Record alarm video file;
The memory module is additionally operable to:At the end of video file of alarming is recorded, the alarm video file is saved in
Magnetic disk storage, and by the common video file in the preset time range before alarm command labeled as alarm video file.
Further, the handover module is additionally operable to:
Delete the video file of pre-recording recorded under alarm mode.
Compared with prior art, the embodiment of the present invention is by being arranged magnetic disk storage;Under alarm mode, record of pre-recording is recorded
As file, the video file of pre-recording is saved in magnetic disk storage;When receiving alarm command, stop recording video recording of pre-recording
File, and start to record alarm video file;At the end of video file of alarming is recorded, the alarm video file is saved in
Magnetic disk storage, and by the video file of pre-recording labeled as alarm video file;To obtain video file of more pre-recording,
And the video file of pre-recording is saved in magnetic disk storage, can be reduced the consumption to Installed System Memory, be further improved
The efficiency of system operation.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the first implementation flow chart for the alarm video recording method for recording that the embodiment of the present invention one provides;
Fig. 2 is the second implementation flow chart of the alarm video recording method for recording that the embodiment of the present invention one provides;
Fig. 3 is the specific implementation flow chart of step S101 in alarm video recording method for recording provided by Embodiment 2 of the present invention;
Fig. 4 is the composite structural diagram for the alarm video recording record device that the embodiment of the present invention three provides.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention is by being arranged magnetic disk storage, under alarm mode, records video file of pre-recording, will be described pre-
Record video file is saved in magnetic disk storage;When receiving alarm command, stop recording video file of pre-recording, and start to record
Alarm video file;At the end of video file of alarming is recorded, the alarm video file is saved in magnetic disk storage, and will
The video file of pre-recording is labeled as alarm video file;To obtain more pre-record video file, and the record of pre-recording
As file is saved in magnetic disk storage, the consumption to Installed System Memory can be reduced, the efficiency of system operation is further improved.
The embodiment of the present invention also provides corresponding devices, and which will be described in detail below.
Embodiment one
Fig. 1 shows the first implementation flow for the alarm video recording method for recording that the embodiment of the present invention one provides;For the ease of
Illustrate, only the parts related to the present invention are shown.
As shown in Figure 1, the method includes:
In step S101, under alarm mode, video file of pre-recording is recorded, the video file of pre-recording is saved in magnetic
Disk storage.
Do not receive the report for police service under alarm mode and instruction, and system is in background record video file, and by the video file
Labeled as video file of pre-recording.The video file of pre-recording refers to the video file recorded before alarm command arrives.It is preferred that
Ground pre-sets a time interval in embodiments of the present invention, pre-records record according to preset time interval loop recording from the background
As file, and hide the video file of pre-recording.Therefore, under alarm mode, user is to look at less than the video recording text of pre-recording
Part.The video file of pre-recording is stored with the format of video file, such as common H.264 compression of digital video format, and
It is saved in the magnetic disk storage that the embodiment of the present invention is opened up.
Since magnetic disk storage is the memory using disk as storage medium, have memory capacity is big, data transmission rate is high,
Store data can long-term preservation the features such as.Therefore, the video file that will pre-record is saved in magnetic disk storage, can be reduced in system
The consumption deposited improves the speed of system operation, and can obtain than more than ten second time longer video file of pre-recording, such as ten
Five minutes long video files of pre-recording.
Wherein, it is described according to preset time interval loop recording pre-record video file the step of will subsequent embodiment into
The detailed description of row, referring specifically to subsequent embodiment.
In step s 102, when receiving alarm command, stop recording video file of pre-recording, and start to record alarm record
As file.
If alarm arrives, when receiving alarm command, then stop background record and pre-record video file, and starts to record alarm
Video file, and remove the hidden file attribute for video file of pre-recording.The alarm video file refers to being arrived in alarm command
The video file recorded in time of fire alarming section after coming.
In step s 103, at the end of video file of alarming is recorded, the alarm video file is saved in disk and is deposited
Reservoir, and by the video file of pre-recording labeled as alarm video file.
In the present embodiment, after alarm video recording, the alarm video file is saved in magnetic disk storage.It is described
Magnetic disk storage can be to pre-record the identical magnetic disk storage of video file with storage.The video file that will pre-record is recorded labeled as alarm
As file.
By the way that above-mentioned steps are stored to disk and are deposited when video file and alarm video file are pre-recorded in storage
In reservoir, avoids in existing method to the copy for preserving video file of pre-recording in memory, Installed System Memory can be reduced
Consumption, further increases the efficiency of system operation.
Preferably, after alarming video recording, the method is by return to step S101, into the video recording text of pre-recording of next round
The recording of part.
In embodiments of the present invention, magnetic disk storage is set;Under alarm mode, video file of pre-recording is recorded, it will be described
Video file of pre-recording is saved in magnetic disk storage;When receiving alarm command, stop recording video file of pre-recording, and start to record
System alarm video file;At the end of video file of alarming is recorded, the alarm video file is saved in magnetic disk storage, and
By the video file of pre-recording labeled as alarm video file;It more pre-records video files, and described pre-records to obtain
Video file is saved in magnetic disk storage, can reduce the consumption to Installed System Memory, further improves the effect of system operation
Rate.
Preferably, the embodiment of the present invention additionally provide in the normal mode alarm video recording record implementation process, below with
Fig. 2 illustrates alarm video recording the second implementation process of method for recording.
In embodiments of the present invention, under alarm mode, the file attribute of the video file of pre-recording obtained is to hide text
Part, user be to look at less than, and in the normal mode, the video file of pre-recording of acquisition is visible.
As described in Figure 2, the method includes:
In step s 201, when receiving pattern switching instruction input by user, normal mode is switched to from alarm mode
Formula.
In the present embodiment, user can realize alarm mould by changing the modes input pattern switching commands such as mode parameter
Formula is switched to normal mode.When being switched to normal mode from alarm mode, the video recording of pre-recording recorded under alarm mode is deleted
File.
In step S202, in the normal mode, common video file is recorded.
In the present invention is example, the video file recorded in the normal mode is labeled as common video file, equally with
The format of video file is stored.Preferably, video heads, video data and frame index are contained in the common video file
Information.Wherein, user-defined information, such as Business Name, driver related information etc. are stored in the video heads;Institute
It includes frame head and frame data to state video data.The common video file is preferably stored in magnetic disk storage.
In step S203, when receiving alarm command, stop recording common video file, and starts to record alarm record
As file.
In step S204, at the end of video file of alarming is recorded, the alarm video file is saved in disk and is deposited
Reservoir, and by the common video file in the preset time range before alarm command labeled as alarm video file.
In the present embodiment, after alarm video recording, the alarm video file is saved in magnetic disk storage, and
From interception in common video file, the common video file in preset time range, definition are described from report forward from alarm command
The alert common video file instructed in preset time range forward is video file of pre-recording;By the video file label of pre-recording
For video file of alarming.
Since the memory capacity of magnetic disk storage is big, store the appearance to the common video file in magnetic disk storage
Amount is big, can therefrom be truncated to the video file of pre-recording of longer time;And common video file and alarm video file store
In magnetic disk storage, the consumption of Installed System Memory can be reduced, improves the speed of system operation.
Embodiment two
Fig. 3 shows the specific implementation stream of step S101 in the alarm video recording method for recording that the embodiment of the present invention one provides
Journey, for convenience of description, only the parts related to the present invention are shown.
As described in Figure 3, step S101 includes:
In step S301, starts to record video recording, record the initial time of recording.
In order to realize loop recording, the embodiment of the present invention is recorded using recording time to record each time.In alarm mould
Under formula and when not receiving alarm command, the attribute of background record video file, the video file is hidden file, and is remembered
The initial time recorded.The initial time of the recording is the recording time of first compressed video file.
In step s 302, when recording time often passes through a preset time interval, by what is recorded in time interval
Video recording boil down to video file, and record current recording time.
Video recording boil down to video file in each time interval is recorded the video file by the embodiment of the present invention
Starting recording time, be denoted as recording time.Therefore, a video file is often compressed, and records current recording time, it is practical
It is the recording time for recording next video file.
It is pre- more than twice in the difference of the recording time maximum value and recording time minimum value that are recorded in step S303
It is described if when time interval, deleting the corresponding video file of recording time minimum value, and delete the recording time minimum value
The corresponding video file of recording time maximum value is video file of pre-recording.
In the present embodiment, if the difference of the recording time maximum value of record and recording time minimum value is default more than twice
Time interval shows to have had compressed at least two video files.In order to reduce occupied disk space, the speed of storage is improved
Degree, the present invention are the prefixed time intervals that embodiment is more than twice in the difference of recording time maximum value and recording time minimum value
When, then the corresponding video file of recording time minimum value is deleted, and remove the recording time minimum value.The record
The corresponding video file of time maximum value processed is video file of pre-recording.If not receiving alarm command also, continue to recycle
It records.Subsequent video file of pre-recording covers the video file of pre-recording of front by the deletion scheme described in step S303.
Preferably, the prefixed time interval is preferably 15 minutes.
Through the above steps, it realizes and records video file of pre-recording according to preset time interval under alarm mode.It protects
The video file within the scope of prefixed time interval before alarm command is stayed, the disk space occupied is few, therefore can improve
The memory rate of magnetic disk storage.
Embodiment three
Fig. 4 shows the composed structure for the alarm video recording record device that the embodiment of the present invention three provides, for convenience of description,
Only the parts related to the present invention are shown.
As shown in figure 4, described device includes:
Video Pre-recording module 41 preserves the video file of pre-recording under alarm mode, recording video file of pre-recording
To magnetic disk storage.
Alarm picture recording module 42 records video file of pre-recording for when receiving alarm command, stopping, and starts to record
Alarm video file.
Memory module 43, at the end of video file of alarming is recorded, the alarm video file to be saved in disk
Memory, and by the video file of pre-recording labeled as alarm video file.
The video file that will pre-record of the embodiment of the present invention is stored in magnetic disk storage, is provided more for video file of pre-recording
Memory space, more pre-record video files to obtain;And video file of pre-recording stores with alarm video file and arrives magnetic
In disk storage, avoids in existing method to the copy for preserving video file of pre-recording in memory, can reduce in system
The consumption deposited further increases the efficiency of system operation.
Preferably, the Video Pre-recording module 41 further includes:
Loop recording unit 411, for pre-recording video file according to preset time interval loop recording.
Hidden unit 412, for hiding the video file of pre-recording.
Preferably, the loop recording unit 411 is specifically used for:
Start to record video recording, records the initial time of recording;
When recording time often passes through a preset time interval, the video recording boil down to recorded in time interval is recorded a video
File, and record current recording time;
When the difference of the recording time maximum value and recording time minimum value that are recorded is more than twice of prefixed time interval,
The corresponding video file of recording time minimum value is deleted, and deletes the recording time minimum value, the recording time is maximum
It is video file of pre-recording to be worth corresponding video file.
Through the above steps, it realizes and records video file of pre-recording according to preset time interval under alarm mode.It protects
The video file within the scope of prefixed time interval before alarm command is stayed, the disk space occupied is few, therefore can improve
The memory rate of magnetic disk storage.
Preferably, in embodiments of the present invention, under alarm mode, the file attribute of the video file of pre-recording obtained is
Hidden file, user be to look at less than.In the normal mode, the video file of pre-recording of acquisition is visible.Therefore the dress
It sets and further includes:
Handover module 44 is switched to for receiving pattern switching instruction input by user from alarm mode
Normal mode.
In the normal mode, the module 41 of pre-recording is additionally operable to:Record common video file;
The alarm picture recording module 42 is additionally operable to:When receiving alarm command, stop recording common video file, and open
Begin to record alarm video file;
The memory module 43 is additionally operable to:At the end of video file of alarming is recorded, the alarm video file is preserved
Into magnetic disk storage, and by the common video file in the preset time range before alarm command labeled as alarm video recording text
Part.
Preferably, the handover module 44 is additionally operable to:
Delete the video file of pre-recording recorded under alarm mode.
It should be noted that the mobile terminal in the embodiment of the present invention can be used to implement it is complete in above method embodiment
The function of portion's technical solution, each function module can be implemented according to the method in above method embodiment, specific
Realization process can refer to the associated description in above-described embodiment, and details are not described herein again.
The embodiment of the present invention is by being arranged magnetic disk storage, under alarm mode, records video file of pre-recording, will be described pre-
Record video file is saved in magnetic disk storage;When receiving alarm command, stop recording video file of pre-recording, and start to record
Alarm video file;At the end of video file of alarming is recorded, the alarm video file is saved in magnetic disk storage, and will
The video file of pre-recording is labeled as alarm video file;To obtain more pre-record video file, and the record of pre-recording
As file is saved in magnetic disk storage, the consumption to Installed System Memory can be reduced, the efficiency of system operation is further improved.
Those of ordinary skill in the art be further appreciated that implement the method for the above embodiments be can
It is completed with instructing relevant hardware by program, the program can be stored in a computer read/write memory medium
In, described storage medium, including ROM/RAM, disk, CD etc..
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention.For example, modules are only
It is divided according to function logic, but is not limited to above-mentioned division, as long as corresponding function can be realized;Separately
Outside, the specific name of each function module is also only to facilitate mutually distinguish, the protection domain being not intended to restrict the invention.
All any modification, equivalent and improvement made by all within the spirits and principles of the present invention etc., should be included in
Within protection scope of the present invention.
Claims (6)
- The method for recording 1. a kind of alarm is recorded a video, which is characterized in that the method includes:Under alarm mode, video file of pre-recording is recorded, the video file of pre-recording is saved in magnetic disk storage;Wherein, described under alarm mode, recording video file of pre-recording includes:It pre-records video file according to preset time interval loop recording;Hide the video file of pre-recording so that user is checked under the alarm mode less than the video file of pre-recording;When receiving alarm command, stop recording video file of pre-recording, and start to record alarm video file, and removes institute State the hidden file attribute for video file of pre-recording;At the end of video file of alarming is recorded, the alarm video file is saved in magnetic disk storage, and pre-record described Video file is labeled as alarm video file;Pattern switching instruction input by user is being received, normal mode is switched to from alarm mode;In the normal mode, common video file is recorded;When receiving alarm command, stop recording common video file, and starts to record alarm video file;At the end of video file of alarming is recorded, the alarm video file is saved in magnetic disk storage, and by alarm command Common video file in preset time range before is labeled as alarm video file;Wherein, the common video file is stored in the magnetic disk storage.
- 2. alarm video recording method for recording as described in claim 1, which is characterized in that described to be recycled according to preset time interval Recording video file of pre-recording includes:Start to record video recording, records the initial time of recording;When recording time often passes through a preset time interval, the video recording boil down to recorded in time interval is recorded a video literary Part, and record current recording time;When the difference of the recording time maximum value and recording time minimum value that are recorded is more than twice of prefixed time interval, delete The corresponding video file of recording time minimum value, and the recording time minimum value is deleted, the recording time maximum value pair The video file answered is video file of pre-recording.
- 3. alarm video recording method for recording as described in claim 1, which is characterized in that be switched to normal mode from alarm mode When, the method further includes:Delete the video file of pre-recording recorded under alarm mode.
- The record device 4. a kind of alarm is recorded a video, which is characterized in that described device includes:Video Pre-recording module, under alarm mode, recording video file of pre-recording, the video file of pre-recording being saved in disk Memory;Wherein, the Video Pre-recording module includes:Loop recording unit, for pre-recording video file according to preset time interval loop recording;Hidden unit, for hiding the video file of pre-recording so that user checks pre- less than described under the alarm mode Record video file;Alarm picture recording module records video file of pre-recording for when receiving alarm command, stopping, and starts to record to alarm and record As file, and remove the hidden file attribute of the video file of pre-recording;Memory module, at the end of video file of alarming is recorded, the alarm video file to be saved in magnetic disk storage, And by the video file of pre-recording labeled as alarm video file;Handover module is switched to normal mode for receiving pattern switching instruction input by user from alarm mode;In the normal mode, the Video Pre-recording module is additionally operable to:Record common video file;The alarm picture recording module is additionally operable to:When receiving alarm command, stop recording common video file, and start to record Alarm video file;The memory module is additionally operable to:At the end of video file of alarming is recorded, the alarm video file is saved in disk Memory, and by the common video file in the preset time range before alarm command labeled as alarm video file;Wherein, the common video file is stored in the magnetic disk storage.
- 5. alarm video recording record device as claimed in claim 4, which is characterized in that the loop recording unit is specifically used for:Start to record video recording, records the initial time of recording;When recording time often passes through a preset time interval, the video recording boil down to recorded in time interval is recorded a video literary Part, and record current recording time;When the difference of the recording time maximum value and recording time minimum value that are recorded is more than twice of prefixed time interval, delete The corresponding video file of recording time minimum value, and the recording time minimum value is deleted, the recording time maximum value pair The video file answered is video file of pre-recording.
- 6. alarm video recording record device as claimed in claim 4, which is characterized in that the handover module is additionally operable to:Delete the video file of pre-recording recorded under alarm mode.
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CN105007442A (en) * | 2015-07-22 | 2015-10-28 | 深圳市万姓宗祠网络科技股份有限公司 | Marking method for continuously recording video and image |
CN105141891B (en) * | 2015-08-04 | 2019-04-30 | 浙江宇视科技有限公司 | It records a video before a kind of police caching method and device |
CN107093436B (en) * | 2017-03-10 | 2020-02-04 | 青岛海信移动通信技术股份有限公司 | Prerecorded audio and video data storage method and device and mobile terminal |
CN111405220B (en) * | 2019-09-30 | 2022-07-05 | 杭州海康威视系统技术有限公司 | Video prerecording method and cloud storage system |
CN113127680B (en) * | 2019-12-30 | 2023-05-02 | Tcl新技术(惠州)有限公司 | Cross-network alarm condition association method, storage medium and system |
CN111447473A (en) * | 2020-03-03 | 2020-07-24 | 深圳市天视通电子科技有限公司 | Alarm video processing method and system |
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