CN105744200B - The storage method and device of surveillance video - Google Patents
The storage method and device of surveillance video Download PDFInfo
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- CN105744200B CN105744200B CN201610096031.0A CN201610096031A CN105744200B CN 105744200 B CN105744200 B CN 105744200B CN 201610096031 A CN201610096031 A CN 201610096031A CN 105744200 B CN105744200 B CN 105744200B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
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Abstract
The present invention is suitable for technical field of video monitoring, provides the storage method and device of surveillance video, comprising: after video monitoring system starting, the hard disk management information in hard disk is read to memory；When detecting video recording enabled instruction, the hard disk management information in memory is updated, and hard disk is written into the hard disk management information of update；In video process, a frame Video data is often got, then the video information in memory is updated, the video information includes the hard disk management information；When detecting video recording halt instruction, hard disk is written into the video information in memory.In the present invention, memory will be changed to by hard disk to the update of hard disk management information in video process, the update of hard disk management information will be synchronized among hard disk again after video recording is completed, can greatly reduce video recording storing process in because to hard disk carry out write operation due to the irreversible disk crash of bring, effectively extend the service life of hard disk.
Description
Technical field
The invention belongs to technical field of video monitoring more particularly to the storage methods and device of surveillance video.
Background technique
In field of video monitoring, it will usually carry out continual video recording in 24 hours to monitoring site by camera, and will
Video data is stored into storage mediums such as hard disk, IPSAN, SD cards, when needing to reappear scene, is transferred out from storage medium
Video data carries out scene reproduction by the way of playing back videos.
Link is stored in data, the prior art generallys use the mode of predistribution, pre-generates video file, index file
And hard disk management file, in video process, the one frame Video data of every storage into video file will be to index file and hard
Disk management file is updated.In field of video monitoring, currently used video file size is 256M or 512M, according to
The data (I frame 200K, P frame 20K) of 1080P are averaged 50K/ frame to calculate, a video file about 5200 frames, that is to say, that
As soon as only being had 10400 times to index file and hard disk management file during the complete creation of video file
Write operation, is equivalent to and has carried out 10400 write operations to the same position of hard disk, and frequent write operation reduces storage medium
Service life, especially the frequent write operation of the same sector of hard disk is easier to damage the sector of hard disk, once storage is situated between
Matter is not available, and system will be unable to work normally.
Summary of the invention
In view of this, the embodiment of the invention provides the storage method of surveillance video and device, it is existing to solve
Surveillance video storage scheme is easy the problem of shortening the service life of storage medium.
In a first aspect, the embodiment of the invention provides a kind of storage methods of surveillance video, comprising:
After video monitoring system starting, the hard disk management information in hard disk is read to memory；
When detecting video recording enabled instruction, the hard disk management information in memory is updated, and by update
Hard disk is written in the hard disk management information；
In video process, a frame Video data is often got, then the video information in memory is updated, the record
As information includes the hard disk management information；
When detecting video recording halt instruction, hard disk is written into the video information in memory.
Second aspect, the embodiment of the invention provides a kind of storage devices of surveillance video, comprising:
Reading unit, for after video monitoring system starting, the hard disk management information in hard disk to be read to memory；
First writing unit, for when detect video recording enabled instruction when, to the hard disk management information in memory into
Row updates, and hard disk is written in the hard disk management information of update；
Updating unit often gets a frame Video data in video process, then to the video information in memory into
Row updates, and the video information includes the hard disk management information；
Second writing unit, for the video information in memory being written hard when detecting video recording halt instruction
Disk.
In embodiments of the present invention, memory will be changed to by hard disk to the update of hard disk management information in video process, recorded
As complete after the update to hard disk management information is disposably synchronized among hard disk again, due in video process to hard disk pipe
The writing data quantity for managing information is larger, and therefore, the above way can greatly reduce in video recording storing process because writing to hard disk
It operates and the irreversible disk crash of bring, effectively extends the service life of hard disk compared with the prior art.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the implementation flow chart of the storage method of surveillance video provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides surveillance video storage method implementation flow chart；
Fig. 3 be another embodiment of the present invention provides surveillance video storage method implementation flow chart；
Fig. 4 is the structural block diagram of the storage device of surveillance video provided in an embodiment of the present invention.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details understands the embodiment of the present invention to cut thoroughly.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In embodiments of the present invention, video monitoring system starting after, by the hard disk management information in hard disk read to
Memory；When detecting video recording enabled instruction, the hard disk management information in memory is updated, and will be described in update
Hard disk is written in hard disk management information；In video process, often get a frame Video data, then to the video information in memory into
Row updates, and the video information includes the hard disk management information；When detecting video recording halt instruction, described in memory
Hard disk is written in video information.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Fig. 1 shows the implementation process of the storage method of surveillance video provided in an embodiment of the present invention, and details are as follows:
In S101, after video monitoring system starting, the hard disk management information in hard disk is read to memory.
It,, in a hard disk can be according to hard-disc storage sky before video recording by the way of predistribution in video monitoring system
Between size and the frame parameter of video pre-generate the video file and hard disk management file of several skies, while can also generate
One empty index file.Hard disk management information in hard disk management file mainly includes the partition information of hard disk, video recording subregion
Information and video file information, wherein partition information is used to illustrate that the partitioning scenario of hard disk, video recording partition information to be hard for illustrating
The relevant information of the subregion of video file and index file is stored in disk, video file information is for illustrating to have been written into record in hard disk
As the relevant information of the video file of data.Index information in index file is mainly used for illustrating having been written into video recording number in hard disk
According to video file video recording time started, video recording end time, the information such as Video data size, index letter in index file
Breath real-time update with the write-in of Video data.
It in embodiments of the present invention, will be in the hard disk management file that stored in hard disk after video monitoring system starting
Hard disk management information read and be copied in memory, in order in subsequent video process, in memory to hard disk management information
It executes and updates operation.
In S102, when detecting video recording enabled instruction, the hard disk management information in memory is updated, and
Hard disk is written into the hard disk management information of update.
After detecting video recording enabled instruction, video monitoring system begins through picture pick-up device and records a video, formal
Video recording movement start before, among the empty video file being pre-created, obtain current needs according to preset strategy and write
Enter the video file of Video data, and creates the file information relevant to the video file in hard disk management information, including this
The preset data capacity of video file, frame per second etc., meanwhile, by the hard disk management text in the hard disk management information write-in hard disk of update
In part, so, the record about the video file is just generated in the hard disk management file in hard disk, show video recording text
Part starts to record a video.
In S103, in video process, a frame Video data is often got, then the video information in memory is carried out more
Newly, the video information includes the hard disk management information.
In video process, corresponding video file, each video recording number is written into Video data as unit of Video data frame
Storage format according to frame is " frame head+Video data ", is first stored in Video data into Video data frame, is created further according to Video data
Frame head is built, the information such as the size of the Video data, the check code of Video data are described in frame head.Often get frame video recording
Data, while the frame Video data is stored in video file, it is also desirable to the video information in memory is updated, recorded a video
Information includes at least hard disk management information, in particular it is required that in hard disk management information, to the relevant information of the video file into
Row updates, including carrying out real-time update to the current actual data capacity of video file.
In S104, when detecting video recording halt instruction, hard disk is written into the video information in memory.
In embodiments of the present invention, video recording halt instruction includes video recording command for stopping and video recording pause instruction, when detecting
Record a video halt instruction when, video recording terminates, at this point, another and will be synchronized in memory to the update of video information in video process
In hard disk management file in hard disk, so, just complete in the hard disk management file in hard disk about the video file
Information record, show the video file video recording terminate.
It is the technical solution provided in an embodiment of the present invention stored to surveillance video above, it can be seen that
In the embodiment of the present invention, memory will be changed to by hard disk to the update of hard disk management information in video process, after video recording is completed
The update to hard disk management information is disposably synchronized among hard disk again, due to being write in video process to hard disk management information
Data volume is larger, and therefore, the above way, which can greatly reduce, to be brought in video recording storing process because carrying out write operation to hard disk
Irreversible disk crash, effectively extend the service life of hard disk compared with the prior art.
Further, as an embodiment of the present invention, can also by video process to the update of index information
Memory is changed to by hard disk, further to reduce the write operation number to hard disk, then when detecting video recording enabled instruction, is executed
While S102, index file can also be created in memory, alternatively, the index file created in hard disk is copied to memory
In, then often getting a frame Video data in video process, the video information for needing to update in memory further includes index
Information, and when detecting video recording halt instruction, the index file of the index information write-in hard disk finished will have been updated in memory
In.
It further, as an embodiment of the present invention, can also be in the hard disk management information of hard disk to video recording text
Part carries out state mark, has distinguished the video file that Video data write-in is completed and unfinished video recording text is written with Video data
Part, specifically:
In video process, in S102 by the operation of the hard disk management information write-in hard disk of update, it is being stored in hard disk
Hard disk management information in, the state of video file is labeled as first state, the video file be the video process in record a video
The presently written video file of data, the first state are written to the video file and record for illustrating currently recording a video
As data；And when S104 detects that hard disk is written in the video information in memory by video recording halt instruction, it is hard being stored in
In the hard disk management information of disk, the state of the video file is designated as the second state, second state is for illustrating currently to have tied
Beam video recording, video file creation are completed.
It is that the embodiment carried out to the storage of surveillance video in the video monitoring system course of work illustrates, and works as above
In video process, when there is abnormal end and restarts in video monitoring system, based on above in the hard disk management information of hard disk it is right
Video file carries out the embodiment of state mark, as shown in Fig. 2, the embodiment of the present invention can also be using following scheme to may go out
The video file of existing defect carries out file repair operation:
In S201, after the video monitoring system abnormal restarting, in the hard disk management information for being stored in hard disk
Detect the state of video file.
In embodiments of the present invention, after video monitoring system is restarted because of exception, the video information in memory is because falling
Electricity and all lose, at this time, it may be necessary to be detected in the hard disk management information of hard disk to the state of video file first.
In S202, if the state for detecting the presence of video file is the first state, text is executed to the video file
Part reparation operation.
Due to only after recording a video by normal instructions stopping, and the video information in memory is updated to hard disk, depositing
The state that storage corresponds to video file in the hard disk management information of hard disk can just be noted as the second state, and in video monitoring system
In the case where abnormal restarting of uniting, since video recording remarkable action stops, it is not carried out and is updated to the video information in memory
The operation of hard disk still can be maintained at the first shape then being stored in and corresponding to the state of video file in the hard disk management information of hard disk
Therefore state in embodiments of the present invention, if the state for detecting the presence of video file is still first state, shows in the record
As file Video data writing process in, video monitoring system is by abnormal restarting, then there may be damages for the video file
The case where, it needs to execute file repair operation to the video file.
As an embodiment of the present invention, executing file repair operation to video file can be according to side shown in Fig. 3
Formula executes:
In S301, frame head verification successively is carried out to each frame of the video file.
Frame head verification is carried out to each frame Video data in video file, it specifically, can be according to entrained in frame head
Check code and the information such as Video data length, the Video data in frame is verified, if being calculated according to Video data
Check code be not consistent with information such as Video data length with the information in frame head, then check results are abnormal, otherwise, check results
Normally, verification passes through.
In S302, if the check results of present frame are normal, video information is updated in memory, and is continued pair
Next frame carries out frame head verification.
In embodiments of the present invention, since after video monitoring system abnormal restarting, the video information in memory is because falling
Electricity and all lose, the video recording therefore, it is necessary to each frame of video file by being stored in traversal hard disk, in Lai Chongjian memory
Information.In reconstruction process, according to the frame sequential in video file, frame head verification successively is carried out to each Video data frame, if right
The check results of present frame are normal, then are updated to the video information in memory, so that video information and record in memory
As the current traversal situation of file is corresponding.For example, being carried out more in video information about the actual data capacity of video file
Newly, so that actual data capacity with the video file currently to verify the sum of length of data frame passed through equal.It is completing
In memory to the update of video information after, sequentially to next frame execute frame head verification operation.
In S303, if the check results of present frame are exception, abandon all since the frame in the video file
Frame, and the relevant video information of the video file is updated in memory, by the relevant record of the updated video file
As hard disk is written in information.
As long as the check results to data frame are normal, then the operation of S302 can sequentially be repeated to data frame, directly
It is finished to the verification of entire video file, and the check results of present frame once occurs for exception, then since present frame, by this
All frames in video file after the present frame and the present frame all abandon, after abandoning and completing, in memory to the record
As the relevant video information of file is updated so that the video information and frame abandon after video file actual information phase
Meet, after aforesaid operations completion, which is completed, by the relevant record of the video file updated in memory
As information write-in hard disk, and the state of the video file is labeled as the second state in a hard disk, shows the record of the video file
As data write operation is completed.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
Corresponding to the storage method of surveillance video described in foregoing embodiments, Fig. 4 shows the embodiment of the present invention and mentions
The structural block diagram of the storage device of the surveillance video of confession, the storage device of the surveillance video, which can be, is built in view
The unit of software unit, hardware cell either soft or hard combination in frequency monitoring system.For ease of description, it illustrates only and this
The relevant part of embodiment.
Referring to Fig. 4, which includes:
Reading unit 41 reads the hard disk management information in hard disk to memory after video monitoring system starting；
First writing unit 42 carries out the hard disk management information in memory when detecting video recording enabled instruction
It updates, and hard disk is written into the hard disk management information of update；
Updating unit 43 often gets a frame Video data in video process, then carries out to the video information in memory
It updates, the video information includes the hard disk management information；
When detecting video recording halt instruction hard disk is written in the video information in memory by the second writing unit 44.
Optionally, first writing unit 42 is specifically used for:
In the hard disk management information for being stored in hard disk, the state of video file is labeled as first state, the video recording
File is the video file that Video data is presently written in the video process；
Second writing unit 44 is specifically used for:
In the hard disk management information for being stored in hard disk, the state of the video file is designated as the second state.
Optionally, described device further include:
Detection unit, after the video monitoring system abnormal restarting, in the hard disk management information for being stored in hard disk
Detect the state of video file；
Unit is repaired, if the state for detecting the presence of video file is the first state, which is executed
File repair operation.
Optionally, the reparation unit includes:
Subelement is examined, frame head verification successively is carried out to each frame of the video file；
First processing subelement, if the check results of present frame are normal, in memory to the relevant video information of the frame
It is updated, and continues to carry out frame head verification to next frame；
Second processing subelement abandons in the video file since the frame if the check results of present frame are exception
All frames, and video information is updated in memory, the relevant video information of the updated video file is written
Hard disk.
Optionally, the video information further includes index file, described device further include:
Creating unit creates index file when detecting video recording enabled instruction in memory.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, system embodiment described above is only schematical, for example, the division of the module or unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be with
In conjunction with or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention
Substantially all or part of the part that contributes to existing technology or the technical solution can be with software product in other words
Form embody, which is stored in a storage medium, including some instructions use so that one
Computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute this hair
The all or part of the steps of bright each embodiment the method for embodiment.And storage medium above-mentioned include: USB flash disk, mobile hard disk,
Read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic
The various media that can store program code such as dish or CD.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and model of each embodiment technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of storage method of surveillance video characterized by comprising
After video monitoring system starting, the hard disk management information in hard disk is read to memory；
When detecting video recording enabled instruction, the hard disk management information in memory is updated, and will be described in update
Hard disk is written in hard disk management information；In video process, often get a frame Video data, then to the video information in memory into
Row updates, and the video information includes the hard disk management information；
When detecting video recording halt instruction, hard disk is written into the video information in memory；
Wherein, described when detecting video recording enabled instruction, the hard disk management information in memory is updated, and will more
Hard disk is written in the new hard disk management information
In the hard disk management information for being stored in hard disk, the state of video file is labeled as first state, the video file
Be the presently written video file first state of Video data in the video process for illustrating currently recording a video, to
Video data is written in the video file；
It is described when detect video recording halt instruction when, by memory the video information write-in hard disk include:
In the hard disk management information for being stored in hard disk, the state of the video file is designated as the second state；Second state
For illustrating currently to have terminated to record a video, video file creation is completed；
The method also includes:
After the video monitoring system abnormal restarting, video file is detected in the hard disk management information for being stored in hard disk
State；
If the state for detecting the presence of video file is the first state, file repair operation is executed to the video file.
2. the method as described in claim 1, which is characterized in that the described pair of video file executes file repair operation and include:
Frame head verification successively is carried out to each frame of the video file；
If the check results of present frame are normal, video information is updated in memory, and continues to carry out frame to next frame
Head verification；
If the check results of present frame are exception, all frames in the video file since the frame are abandoned, and in memory
The relevant video information of the video file is updated, the relevant video information of the updated video file is written hard
Disk.
3. such as the described in any item methods of claim 1 to 2, which is characterized in that the video information further includes index file, institute
State method further include:
When detecting video recording enabled instruction, index file is created in memory.
4. a kind of storage device of surveillance video characterized by comprising
Reading unit, for after video monitoring system starting, the hard disk management information in hard disk to be read to memory；
First writing unit, for being carried out more to the hard disk management information in memory when detecting video recording enabled instruction
Newly, and by the hard disk management information of update hard disk is written；
Updating unit then carries out more the video information in memory for often getting a frame Video data in video process
Newly, the video information includes the hard disk management information；
Second writing unit, for when detecting video recording halt instruction, hard disk to be written in the video information in memory；
Wherein, first writing unit is specifically used for:
In the hard disk management information for being stored in hard disk, the state of video file is labeled as first state, the video file
For the presently written video file of Video data in the video process；The first state is for illustrating currently recording a video,
Video data is written to the video file；
Second writing unit is specifically used for:
In the hard disk management information for being stored in hard disk, the state of the video file is designated as the second state；Second state
For illustrating currently to have terminated to record a video, video file creation is completed；
Described device further include:
Detection unit is used for after the video monitoring system abnormal restarting, in the hard disk management information for being stored in hard disk
Detect the state of video file；
Unit is repaired, if the state for detecting the presence of video file is the first state, which is executed
File repair operation.
5. device as claimed in claim 4, which is characterized in that the reparation unit includes:
Subelement is examined, carries out frame head verification for each frame successively to the video file；
First processing subelement, if the check results for present frame are normal, in memory to the relevant video information of the frame
It is updated, and continues to carry out frame head verification to next frame；
Second processing subelement abandons in the video file since the frame if the check results for present frame are exception
All frames, and video information is updated in memory, the relevant video information of the updated video file is written
Hard disk.
6. such as the described in any item devices of claim 4 to 5, which is characterized in that the video information further includes index file, institute
State device further include:
Creating unit, for creating index file in memory when detecting video recording enabled instruction.
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| CN108287990B (en) * | 2017-12-26 | 2021-08-24 | 努比亚技术有限公司 | File abnormal operation processing method, electronic equipment and computer readable storage medium |
| CN109800181B (en) * | 2018-12-12 | 2021-05-04 | 深圳市景阳科技股份有限公司 | Disk-based data writing method, data writing device and terminal equipment |
| CN114363550A (en) * | 2022-01-14 | 2022-04-15 | 天地伟业技术有限公司 | Continuous writing and storage state monitoring method and system for network video recorder |
| CN115346564B (en) * | 2022-08-17 | 2024-10-29 | 上海今海医疗科技有限公司 | Signal source access system for judging recorder module based on storage capacity |
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