CN109361952A - Video management method, apparatus, system and electronic equipment - Google Patents
Video management method, apparatus, system and electronic equipment Download PDFInfo
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- CN109361952A CN109361952A CN201811539151.9A CN201811539151A CN109361952A CN 109361952 A CN109361952 A CN 109361952A CN 201811539151 A CN201811539151 A CN 201811539151A CN 109361952 A CN109361952 A CN 109361952A
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- 238000000034 method Methods 0.000 claims abstract description 49
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- 238000012544 monitoring process Methods 0.000 abstract description 36
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4332—Content storage operation, e.g. storage operation in response to a pause request, caching operations by placing content in organized collections, e.g. local EPG data repository
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The present invention provides a kind of video management method, apparatus, system and electronic equipments, are related to technical field of video monitoring, wherein the video management method includes the monitor video of receiving front-end video capture device acquisition；Compression is carried out to monitor video and generates video data；Distributed storage is carried out to video data.The video management method can alleviate the lower technical problem of safety of monitoring data coefficient existing in the prior art, improve the safety coefficient of monitoring data.In addition, this method can save memory space, on the basis of reducing memory requirement and cost, monitor video is saved from damage, is conducive to the safety for improving monitor video.
Description
Technical field
The present invention relates to technical field of video monitoring, more particularly, to a kind of video management method, apparatus, system and electronics
Equipment.
Background technique
With the progress of security protection science and technology, video monitoring system can real-time, image, the feelings for being truly reflected monitored object
Condition becomes a kind of extremely effective tool that people carry out monitoring control in modern management, is also the bursting tube of school
Reason provides powerful technical support.
Monitor video can be used as the important means of post-survey and evidence obtaining, however, would generally cause due to various reasons
Investigation and evidence obtaining get into a difficult position, such as the monitor video of important evidence, may fail to get because of the reason that hard disk is damaged
Video can only get partial video, i.e., collapse entire monitoring system, storage note
It is opaque to record information.The shortage of data problem of this monitor video produces great influence to investigation and evidence obtaining, therefore how
Monitoring data is saved from damage, the problem of safety for improving monitoring data is current urgent need to resolve.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of video management method, apparatus, system and electronic equipment, with
Alleviate the lower technical problem of safety of monitoring data coefficient existing in the prior art, is conducive to the safety system for improving monitoring data
Number.
In a first aspect, the embodiment of the invention provides a kind of video management methods, comprising:
The monitor video of receiving front-end video capture device acquisition；
Compression is carried out to the monitor video and generates video data；
Distributed storage is carried out to the video data.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
It states and distributed storage is carried out to the video data, comprising:
Distributed storage is carried out to the video data based on correcting and eleting codes technology.
The possible embodiment of with reference to first aspect the first, the embodiment of the invention provides second of first aspect
Possible embodiment, wherein the method also includes:
Receive client checks request；
Based on the segment checked request and directly get the video data from local data base；
The segment of the video data is reduced to complete video data；
The video data is sent to client, in order to which user checks.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein institute
It states and distributed storage is carried out to the video data, comprising:
Distributed storage is carried out to the video data based on correcting and eleting codes technology, while institute is generated based on the video data
The the first Hash characteristic value for stating video data, the first Hash characteristic value is written in block newborn in block chain.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein the method also includes:
Receive client checks request；
Based on the storage information checked and request to get video data from local data base；The wherein storage information
File identification and storage location including video file associated with the video data；
Video file associated with the video data is extracted from distributed network node based on the storage information；
Recovery video data is synthesized based on the video file；
It will restore video data to send to client, in order to which user checks.
The 4th kind of possible embodiment with reference to first aspect, the embodiment of the invention provides the 5th kind of first aspect
Possible embodiment, wherein the method also includes:
While the client checks recovery video data, added based on video data is restored using hash algorithm
It is dense at the second Hash characteristic value；
Second Hash characteristic value is compared with the first Hash characteristic value, to judge the view according to comparison result
Whether frequency evidence is tampered.
The possible embodiment of second with reference to first aspect or the 5th kind of possible embodiment, the embodiment of the present invention
Provide the 6th kind of possible embodiment of first aspect, wherein this method further include:
It checks that request generates log information based on described, the log information is written to block chain.
It should be noted that above-mentioned Hash characteristic value and log information can be the local block chain of write-in, it is also possible to
Cloud block chain is written, this present invention is not construed as limiting.
Second aspect, the embodiment of the present invention also provide a kind of video management device, comprising: receiving module, before receiving
Hold the monitor video of video capture device acquisition；
Compression module generates video data for carrying out compression to the monitor video；
Distributed storage module, for carrying out distributed storage to the video data.
The third aspect, the embodiment of the present invention also provide a kind of system for managing video, comprising: client and above-mentioned video
Managing device；The client is connected with the video management device.
Fourth aspect the embodiment of the invention also provides a kind of electronic equipment, including memory, processor and is stored in institute
The computer program that can be run on memory and on the processor is stated, the processor executes real when the computer program
The step of showing above-mentioned video management method.
The embodiment of the present invention brings following the utility model has the advantages that the embodiment of the invention provides a kind of video management methods, dress
It sets, system and electronic equipment, wherein the video management method includes the monitor video of receiving front-end video capture device acquisition；
Compression is carried out to monitor video and generates video data；Distributed storage is carried out to video data.Therefore, the embodiment of the present invention provides
Technical solution, can alleviate the lower technical problem of safety of monitoring data coefficient existing in the prior art, improve monitoring number
According to safety coefficient.In addition, this method can save memory space, on the basis of reducing memory requirement and cost, to monitoring
Video is saved from damage, and the safety for improving monitor video is conducive to.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of video management method provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of video management method provided in an embodiment of the present invention；
Fig. 3 is a kind of application scenario diagram of video management method provided in an embodiment of the present invention；
Fig. 4 is the flow chart of second of video management method provided in an embodiment of the present invention；
Fig. 5 is the flow chart of the third video management method provided in an embodiment of the present invention；
Fig. 6 is a kind of structure chart of video management device provided in an embodiment of the present invention；
Fig. 7 is a kind of structural block diagram of system for managing video provided in an embodiment of the present invention；
Fig. 8 is the schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Video monitoring is the basis that every profession and trade key sector or important place carry out security protection, and administrative department can pass through prison
Control obtains valid data, image or acoustic information, and the process of paroxysmal abnormality event is monitored and remembered, to improve reality
When event disposal efficiency and realize historical events investigation quick evidence obtaining.
Video Supervision Technique is widely used in the industries such as finance, education, property, politics and law, traffic, Retail chain, is monitoring
The video data generated in the process then becomes the important handgrip of these field security protections work and effective voucher of track of issues.Cause
This, in order to achieve the purpose that video monitoring will guarantee the secure storage of video data, realization is not lost, nothing is distorted.
Investigation and evidence obtaining would generally be caused to get into a difficult position, such as the monitoring of important evidence due to various reasons at present
Video may fail to get video or can only get partial video, i.e., due to individually saving because of the reason that hard disk is damaged
The failure of point and collapse entire monitoring system, storage record information is opaque.The shortage of data problem pair of this monitor video
Investigation and evidence obtaining produce great influence, therefore how to save from damage to monitoring data, and the safety for improving monitoring data is
At present the problem of urgent need to resolve, it is based on this, a kind of video management method, apparatus, system and electronics provided in an embodiment of the present invention
Equipment can alleviate the lower technical problem of safety of monitoring data coefficient existing in the prior art, be conducive to improve monitoring number
According to safety coefficient.
For convenient for understanding the present embodiment, first to a kind of video management method disclosed in the embodiment of the present invention into
Row is discussed in detail.
The embodiment of the invention provides a kind of video management methods, are applied to safety-security area, are particularly suitable for school, enterprise
The place of the needs such as industry, hospital, factory monitoring.
Specifically, as shown in Figure 1, Figure 2 and Figure 3, this method is applied to fill including front-end video acquisition device, video management
The system for managing video with client is set, wherein front-end video acquisition device, client are connected with video management device；Before
Holding video capture device and video management device is one-to-one relationship, in view of needing to monitor the multiple and different of place to one
Region be monitored, therefore in the present embodiment front-end video acquisition device be it is multiple.Correspondingly, video management device is more
It is a.The two is combined together as a node.
This method is illustrated by taking a node as an example below, this method is executed by video management device, this method packet
Include following steps:
Step S101, the monitor video of receiving front-end video capture device acquisition；
Wherein, the front-end video acquisition device is camera monitoring device, specifically, front-end video acquisition device is camera shooting
Machine, front-end video acquisition device is for acquiring monitor video.
Specifically, the monitor video of video management device receiving front-end video capture device acquisition.
When realizing, step S101 is realized by following steps:
1, front-end video acquisition device and video management device are configured in monitoring area；
2, front-end video acquisition device receives the pre-set parameter information of user；
Wherein parameter information includes but is not limited to monitoring area information, shooting angle, installation site and number of cameras；
3, front-end video acquisition device acquires monitor video according to set parameter information in monitoring area；Front end
The monitor video of acquisition is sent to coupled video management device by video capture device；
4, video management device receives the monitor video acquired from front-end video acquisition device.
It should be noted that monitor video can be history monitor video, it is also possible to monitor video in real time；Implement at one
In example, monitor video here is acquired in real time by front-end video acquisition device；Certainly, in other embodiments, monitoring view
Frequency is also possible to collect within a preset period of time one section of video.
Step S102 carries out compression to monitor video and generates video data；
Wherein the video data is used to supply to be locally stored and other parts are transferred, and other parts include: client；
Specifically, the video of acquisition is carried out lossless compression by video management device generates video data, video is arrived with storage
To facilitate other parts to transfer in managing device, such as storage is into video management device local storage (such as disk, memory)；
Certainly the extraneous memory being connected with video management device can also be stored, extraneous memory includes storage array, NVR
(Network Video Recorder, network hard disk video recorder) etc..
The model VDMS-T-1 of video management device in the present embodiment.The VDMS-T-1 can not influence video
Original resolution ratio, and do not change video frame rate, monitor video is compressed under the premise of not changing video length, stored, is managed
Reason averagely saves 10 times or more of memory space, substantially reduces memory requirement and cost, that is, the video data phase generated after compressing
It is greatly reduced than the monitor video memory space before compression, in other words, video data and monitor video are all one section of video recordings
File, only the size of file becomes, and still can be sent to client and be directly viewable.Such as monitor a video text
Part is originally H264 format, becomes the video data of BBW format after compression, it should be pointed out that BBW format and MP4,
AVI format is the same, is a kind of exclusive format, if the user desired that being watched with mainstream standard format, then transcoding clothes can be used
For business device to watching after BBW format code transferring, used herein is user client, therefore transcoding issues are not present.
Step S103 carries out distributed storage to video data.
Specifically, received video data is carried out distributed storage by video management device, be conducive to improve video data
Safety；
In one embodiment, the video management device of the node is published to other sections after can backing up video data
Point is stored by other nodes, i.e. the video management device of the node stores after can backing up video data to others
Video management device, such as store after being backed up in such a way that copy stores to other video management devices.
In other embodiments, video data can be divided into multiple video clips by the video management device of the node
After (segment is for example in the form of data block), segment (can be in random form) is then forwarded to distributed storage network
On other nodes (video management device), other nodes by receiving a segment deposit one of data block
Video data can be divided into multiple data blocks and multiple by correcting and eleting codes technology by storage, such as the video management device of the node
Then multiple data blocks and multiple check blocks are forwarded to the video management device in other nodes, the section being forwarded to by check block
Video management device in point is stored with a data block or a check block, realizes distributed storage.
It should be noted that segment (data block or check block) and node can be one-to-one relationship, that is, work as division
The quantity of segment when being less than the quantity of node, the video management device in a node stores a segment；When the piece of division
When the quantity of section is less than the quantity of node, then the video management device in node having is not no segment, the section only forwarded
A segment is just had in the video management device of point.
To sum up, step S103 is mainly realized at least one of in the following manner:
A, distributed storage is carried out to the video data based on copy memory technology；
B, based on entangle coding techniues to the video data carry out distributed storage；
The embodiment of the invention provides a kind of video management method, the monitoring including the acquisition of receiving front-end video capture device
Video；Compression is carried out to monitor video and generates video data；Distributed storage is carried out to video data.Therefore, the present invention is implemented
The technical solution that example provides, can alleviate the lower technical problem of safety of monitoring data coefficient existing in the prior art, improve
The safety coefficient of monitoring data.In addition, this method can save memory space, on the basis of reducing memory requirement and cost,
Monitor video is saved from damage, the safety for improving monitor video is conducive to.
As shown in figure 4, the embodiment of the invention provides second of video management methods, this method comprises:
Step S101, the monitor video of receiving front-end video capture device acquisition；
Step S102 carries out compression to monitor video and generates video data；
Step S401 carries out distributed storage to video data based on correcting and eleting codes technology.
Specifically, being stored to the video data placement formula into local data base based on correcting and eleting codes technology.
Here distributed storage is disk distributed storage mode, that is, is stored in and is made of multiple video management devices
In the disk of the video management device of distributed network, it is one that the disk of multiple video management devices, which forms local data base,
Mode is locally stored in kind.
Wherein, distributed storage is carried out to the video data based on correcting and eleting codes technology to realize by following steps:
The video data is divided into K data block first；Then M check block is generated based on K data block, specifically
This K data block is connected by certain mode (mathematical function relationship may refer to entangle coding techniues) and generates M school
Test block；Then by K data block and M check block distributed storage in the video management device of different nodes；When certain is several
When dropout of data block, the data block of loss is recalculated using check block.Above-mentioned K and M is the integer greater than 1, and K and M can
To set according to actual needs, such as according to the quantity, computational accuracy, security consideration of node.
Step S402, receive client checks request；
Wherein, client is equivalent to software used in viewing video；It is described check request include client information with
And in the local data base (video to be viewed of the memory (specially disk) including local multiple video management devices
The information of data (or monitor video to be viewed)；The information of above-mentioned client includes User ID (IP address, user name, mac
Location etc.) and check the time；The video data to be viewed of the local data base includes the video content of the video data；This reality
It applies in example, what it is in view of front-end collection is then real-time video compresses progress distributed storage, and what present client request was checked is
History monitor video, correspondingly, checking that request is that history checks request.
Step S403, based on checking that request directly gets the segment of video data from local data base；
Specifically, based on the video clip for requesting directly to get video data from distributed storage is checked；
Such as video clip (data block or the school of the video data are found according to the timing node of video data first
Test block) where video management device local disk position, then extract institute from the local disk of the video management device
State the segment of video data.
The segment of video data is reduced to complete video data by step S404；Specifically, the video counts that will be extracted
According to each fragment be combined, obtain complete video data.
Step S405 sends video data to client.
By step S405 in order to which user checks.
Video management method provided in this embodiment is divided video data by the distributed storage mode of correcting and eleting codes technology
It is arrived at (such as in the disk of multiple video management devices) different location of local data base at storage after many segments, works as needs
When reading (such as user check when), each segment of video data is read out, complete video is being combined into
Data are transmitted directly to user (can check without decompression).
As shown in figure 5, the embodiment of the invention provides the third video management methods, this method comprises:
Step S101, the monitor video of receiving front-end video capture device acquisition；
Step S102 carries out compression to monitor video and generates video data；
Step S501 is carried out distributed storage to video data based on correcting and eleting codes technology, while being generated based on video data
First Hash characteristic value of video data, the first Hash characteristic value is written in block newborn in block chain.Wherein, it is based on
Correcting and eleting codes technology carries out distributed storage to the video data and is realized by following steps:
The video data is divided into K data block first；Then M check block is generated based on K data block, specifically
This K data block is connected by certain mode (mathematical function relationship may refer to entangle coding techniues) and generates M school
Test block；Then by K data block and M check block distributed storage in the video management device of different nodes；When certain is several
When dropout of data block, the data block of loss is recalculated using check block.Above-mentioned K and M is the integer greater than 1, and K and M can
To set according to actual needs, such as according to the quantity, computational accuracy, security consideration of node.
Wherein, in the step of generating the first Hash characteristic value of video data based on video data, video data includes institute
Stating video data includes video content；Here video content includes monitoring area, monitored picture；Above-mentioned timing node refers to
At the time of video compress is stored in video management device；It is carried out based on video content and/or timing node by hash algorithm
Encryption (primary calculate) generates the first Hash characteristic value of the video data, hash algorithm here include but is not limited to MD5,
SHA, in the present embodiment, hash algorithm can be SHA256.
The step that first Hash characteristic value is written in block newborn in block chain includes:
1, the first Hash characteristic value is generated according to video data；
2, the first Hash characteristic value is written in block newborn in block chain.
Here the first Hash characteristic value correspond to storage when video data (compressed video data, also known as
Original video data), and with the video clip of video data it is corresponding association.
In the present embodiment, video data is not stored in block chain, is only by the first Hash characteristic value of video data
It stores in block chain, video data is still storage into local (video management device) disk；It is locally stored and block chain
It is associated by the first Hash characteristic value, while improving the safety of video data, is also convenient for video outflow when progress
It traces to the source.
Step S502, receive client checks request；
Wherein client is equivalent to software used in viewing video；It is described to check that request includes the information (packet of client
Include User ID and check the time) and in the local data base (and/or block chain) video data to be viewed information
(timing node including the video data)；Above-mentioned User ID includes IP address, user name, the address mac etc.；The local
The information of the video data to be viewed of database (and/or block chain) can also include the video content of the video data；
It can be real time monitoring video in view of monitor video, be also possible to history monitor video, correspondingly, checking request packet
It includes real time inspection request and history checks request.It should be noted however that cryptographic Hash is had based on file (video data) transmission,
Cryptographic Hash is transmitted without based on video flowing, therefore, when checking that request is that history checks request (checking historical video streams), that is, is gone through
History video flowing is not no cryptographic Hash, needs first to download history video data, first generates cryptographic Hash, is carrying out subsequent step
Suddenly.In the present embodiment, to check that request is that real time inspection requests to discuss.
Step S503, based on checking the storage information for requesting to get from local data base video data；
Above-mentioned local data base is memory (including the magnetic by all video management devices in distributed storage network
Disk, memory etc.) constitute.
Wherein the storage information includes file identification and the storage of video file associated with the video data
Position；Above-mentioned video file, that is, video clip, in other words, storage information include storage location (i.e. multiple views of video clip
Distribution situation of the frequency segment in distributed network), relevant information (as identify or number) and check value.In distributed storage
When, multiple video clips (including data block and check block) of division, each video clip is known as a video file.
Step S504 extracts video text associated with video data based on storage information from distributed network node
Part；
In the present embodiment, distributed network node is specially VDMS-T-1, it should be pointed out that VDMS-T-1 can also make
For the node of block chain.
Step S504 is realized by following steps: the multiple video files (video clip) for first looking for video data exist
Position in distributed network node；According to the multiple video files (video clip) found in distributed network node
Extract multiple video file in position；
Step S505 synthesizes recovery video data based on video file；
The multiple video files extracted are combined to obtain the video data；I.e. by above-mentioned video file according to text
Part mark (number) combination obtains video data；
Step S506 will restore video data and send to client；
By the step in order to which user is checked by client.
The first line of defence of the distributed storage as video data, second defence line of the block chain as video data are protected
Safety and the tractability of video data are demonstrate,proved.
In order to record to checking for video data, to improve the safety of monitor video, further, this method is also
May include:
The log information is written in block chain by step S507 based on request generation log information is checked, in order to
It traces to the source when user checks video.
Specifically, log information is directly write in the block of block chain new life.Newborn block herein refers to this
Check block belonging to the moment, the create-rule of block is 10min, and referring specifically to block chain the relevant technologies, which is not described herein again.
One defence line of the block chain as log information, ensure that safety and the tractability of log information.
There may be by people when monitor video (the mainly history monitor video) checked in view of user by client
The case where to distort；Further, this method can also include:
Step S508 generates the second Hash based on video data is restored while client checks recovery video data
Characteristic value；Second Hash characteristic value is compared with the first Hash characteristic value, to judge that video data is according to comparison result
It is no to be tampered.
Specifically, being based on video while the client checks recovery video data (video data when checking)
Data are encrypted (secondary calculating) using hash algorithm and generate the second Hash characteristic value；By the second Hash characteristic value and described the
One Hash characteristic value is compared, if comparison result is that the second Hash characteristic value is consistent with the first Hash characteristic value, that is, is looked into
Both video data when seeing and original video data (i.e. compressed monitor video) be it is identical, then judge video data
(original video data) is not tampered with；
If comparison result is that the second Hash characteristic value and the first Hash characteristic value are inconsistent, that is, video counts when checking
According to not identical as both original video datas, then judge that video data (i.e. compressed monitor video) is tampered；At this point, video
Managing device generates feedback information, and the feedback information includes generating the different abnormal data of Hash characteristic value；In order to basis
Feedback information searches reason；Specifically, the VDMS system meeting automatic feedback pre-installed on video management device causes Hash characteristic value
Different abnormal data can find reason by this data, by with the log in the log information of last successful access
Time (checking the time) comparison can be inferred that the time interval that video is tampered, and it is abnormal to find generation by time interval
The source user (information of client, such as IP address) of data.
Video management method provided in this embodiment is by correcting and eleting codes technology to distributed storage after video data fragment section
To local data base, while the Hash characteristic value (digital digest) of video data being stored into block chain, i.e., video data does not have
There is storage into block chain, is only that the digital digest (the first Hash characteristic value) of video data is stored into the video into block chain
Data are still storage in local (such as disk of multiple video management devices)；It is locally stored and is breathed out with block chain by first
Uncommon characteristic value (digital digest) is associated, and while improving the safety of video data, is also convenient for video outflow when progress
It traces to the source.
As shown in fig. 6, the embodiment of the invention also provides a kind of video management devices, comprising: receiving module 400, compression
Module 500, distributed storage module 600；
Wherein receiving module 400 is used for the monitor video of receiving front-end video capture device acquisition；
Compression module 500 is used to carry out the monitor video compression and generates video data, and the video data is for supplying
It is locally stored and client is transferred；
Distributed storage module 600 is used to carry out distributed storage to the video data.
Video management device provided in an embodiment of the present invention has identical with video management method provided by the above embodiment
Technical characteristic reach identical technical effect so also can solve identical technical problem.
As shown in fig. 7, the embodiment of the invention also provides a kind of system for managing video, comprising: video management device 800,
Client 900；The video data management system includes video management device according to any one of claims 8, the client and institute
Video data management system is stated to be connected.
Further, which can also include front-end video acquisition device 700.One is only schematically illustrated in Fig. 7
A front-end video acquisition device, a video management device, client connection block diagram, practical application figure is referred to figure
3。
Further, video management device is preinstalled with the video data management system VDMS；
System for managing video provided in an embodiment of the present invention is executed by taking the application scenarios for constructing Safe Campus as an example below
Video management method is briefly described:
In order to realize that the target of above-mentioned building Safe Campus, the present invention adopt the following technical scheme that: the following steps are included:
Step 1, front-end video acquisition device carry out video acquisition；
Step 2, the compression module of the video management device that the video of acquisition is connected by the front-end video acquisition device into
Again other video managements device VDMS-T-1 is forwarded to after row lossless compression, by forwarding realization distributed storage again, with
It is transferred for other video management device VDMS-T-1 or other parts (client)；When client real time inspection, and it is same
When real-time video transferred into record according to different users and time (user logs in the time point that client is checked),
One corresponding Hash characteristic value of output is calculated, (record is transferred there are in memory, turns to one according to certain sequence of rules
String generates cryptographic Hash using SHA256 or other hash algorithms) it will show that the monitor video after Hash characteristic value is written to area
In block chain in newborn block, to trace to the source when video outflow；Above-mentioned different user is the visitor by different user
Family end logging device (possessing different IP addresses, user name, the address mac etc.) indicates；
Realize that client transfers use to real-time video by step 2.
Step 3, video data management system carry out distributed storage to the compressed monitor video of video management device,
And one corresponding Hash characteristic value of output, the Kazakhstan that will be obtained are calculated according to different timing nodes to the video of front-end collection
Uncommon characteristic value is written in block newborn in block chain；Video data management system is a product, is equivalent to a platform,
Possess numerous miscellaneous goods on platform, block chain is exactly a part of this system.
Step 4, client will check the monitor video in block chain, check to the transmission of intelligent video data management system
Request；Here monitor video is primarily referred to as history monitor video.
Step 5, what video data management system received client checks request, directly can obtain file from block chain
Storage location, relevant information and check value, extract associated documents on a distribution network and restore original video, client can be with
Successfully check corresponding video；Above-mentioned associated documents refer to checking that the history video file of a certain period, one section of video are logical
Distributed storage storage is crossed into different equipment, user, which checks, then to need to merge relevant video file when video
Step 6, while client checking monitoring video, view that video data management system can be checked according to client
Frequently, it calculates and exports a corresponding Hash characteristic value；
Step 7, if calculated Hash characteristic value is different from video original Hash characteristic value, system meeting automatic feedback is caused
The different abnormal data of Hash characteristic value, can find reason by this data.
Specifically, by comparing the time zone that may infer that video is tampered with the logging time of last successful access
Between, the source user for generating abnormal data can be found by time zone.
Step 3 to step 5 realizes that client transfers use to history video.
The system has the advantage that
Memory carrier lightweight
The system makes any number of headend equipment VDMS-T-1 that can form video network by way of self-organizing
Network --- plug and play, that is, networking.The system makes the memory carrier of camera video become lightweight, flexibility height, takes with tradition
Device scheme of being engaged in is compared without strong and weak electricity transformation demand, and the huge investment of traditional IDC computer room construction is saved.
Go centered video networking
The application of block chain technology makes each VDMS-T-1 equipment all can serve as data center and goes to access all camera shootings
Machine, and check the data in other equipment.Decentralization platform brings better video data to control, and data stability is good.
Efficient lossless compression storage
The system optimizes resource management in equipment level simultaneously, makes the storage resource of each node in network available more
The distribution and utilization of adduction reason and science, improve efficiency, and save average 10 times or more of memory space for video.
It can trace to the source absolutely safe
The system increases operating time dimension by the data that are recorded as of account book data, to guarantee that video content can be tested
Card can trace to the source, high reliablity.
System for managing video provided in an embodiment of the present invention by block chain technology be applied to video monitoring data storage and
Record, so that video data during transmission and storage, accomplishes not losing and not authorized usurping for video data
Change or can be found rapidly after distorting.Specifically, system for managing video introduces block chain technology, is formed and be based on video data
The block chain of safety；Block chain technology is applied to storing and recording for school's video monitoring data, is lost with effectively solving data
It becomes estranged the problem of distorting.The system for managing video constructs Safe Campus by using block chain technology, makes controlled school
Garden informatization security network.In advance, increase one layer of invisible catch net for child, gives watchful and shake to educational work personnel
Fear；It subsequent, does not sigh because of the missing of evidence and helpless, the indignation and panic not due to the distrust of each side is built for child
More safe and healthy growth environment.
Unless specifically stated otherwise, the opposite step of the component and step that otherwise illustrate in these embodiments, digital table
It is not limit the scope of the invention up to formula and numerical value.
The technical effect and preceding method of device, system provided by the embodiment of the present invention, realization principle and generation are real
It is identical to apply example, to briefly describe, device, system embodiment part do not refer to place, can refer to corresponding in preceding method embodiment
Content.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
The flow chart and block diagram in the drawings show the system of multiple embodiments according to the present invention, method and computer journeys
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, section or code of table, a part of the module, section or code include one or more use
The executable instruction of the logic function as defined in realizing.It should also be noted that in some implementations as replacements, being marked in box
The function of note can also occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually base
Originally it is performed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that
It is the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart, can uses and execute rule
The dedicated hardware based system of fixed function or movement is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
Referring to Fig. 8, the embodiment of the present invention also provides a kind of electronic equipment 100, comprising: processor 40, memory 41, bus
42 and communication interface 43, the processor 40, communication interface 43 and memory 41 are connected by bus 42；Processor 40 is for holding
The executable module stored in line storage 41, such as computer program.
Wherein, memory 41 may include high-speed random access memory (RAM, Random Access Memory),
It may further include nonvolatile memory (non-volatile memory), for example, at least a magnetic disk storage.By at least
One communication interface 43 (can be wired or wireless) realizes the communication between the system network element and at least one other network element
Connection, can be used internet, wide area network, local network, Metropolitan Area Network (MAN) etc..
Bus 42 can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, data
Bus, control bus etc..Only to be indicated with a four-headed arrow convenient for indicating, in Fig. 8, it is not intended that an only bus or
A type of bus.
Wherein, memory 41 is for storing program, and the processor 40 executes the journey after receiving and executing instruction
Sequence, method performed by the device that the stream process that aforementioned any embodiment of the embodiment of the present invention discloses defines can be applied to handle
In device 40, or realized by processor 40.
Processor 40 may be a kind of IC chip, the processing capacity with signal.During realization, above-mentioned side
Each step of method can be completed by the integrated logic circuit of the hardware in processor 40 or the instruction of software form.Above-mentioned
Processor 40 can be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network
Processor (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital Signal
Processing, abbreviation DSP), specific integrated circuit (Application Specific Integrated Circuit, referred to as
ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or other are programmable
Logical device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute in the embodiment of the present invention
Disclosed each method, step and logic diagram.General processor can be microprocessor or the processor is also possible to appoint
What conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processing
Device executes completion, or in decoding processor hardware and software module combination execute completion.Software module can be located at
Machine memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory, register etc. are originally
In the storage medium of field maturation.The storage medium is located at memory 41, and processor 40 reads the information in memory 41, in conjunction with
Its hardware completes the step of above method.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
The computer program product of video management method is carried out provided by the embodiment of the present invention, including stores processor
The computer readable storage medium of executable non-volatile program code, the instruction that said program code includes can be used for executing
Previous methods method as described in the examples, specific implementation can be found in embodiment of the method, and details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling 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.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, 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.) executes each embodiment institute of the present invention
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of video management method characterized by comprising
The monitor video of receiving front-end video capture device acquisition；
Compression is carried out to the monitor video and generates video data；
Distributed storage is carried out to the video data.
2. the method according to claim 1, wherein described carry out distributed storage, packet to the video data
It includes:
Distributed storage is carried out to the video data based on correcting and eleting codes technology, while the view is generated based on the video data
First Hash characteristic value of frequency evidence, the first Hash characteristic value is written in block newborn in block chain.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
Receive client checks request；
Based on the storage information checked and request to get video data from local data base；Wherein the storage information includes
The file identification and storage location of video file associated with the video data；
Video file associated with the video data is extracted from distributed network node based on the storage information；
Recovery video data is synthesized based on the video file；
The recovery video data is sent to client, in order to which user checks.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
While the client checks the recovery video data, based on the recoverys video data utilize hash algorithm into
Row encryption generates the second Hash characteristic value；
Second Hash characteristic value is compared with the first Hash characteristic value, to judge the video counts according to comparison result
According to whether being tampered.
5. the method according to claim 1, wherein described carry out distributed storage, packet to the video data
It includes:
Distributed storage is carried out to the video data based on correcting and eleting codes technology.
6. according to the method described in claim 5, it is characterized in that, the method also includes:
Receive client checks request；
Based on the segment checked request and directly get the video data from local data base；
The segment of the video data is reduced to complete video data；
The video data is sent to client, in order to which user checks.
7. the method according to claim 3 or 6, which is characterized in that further include:
Based on request generation log information is checked, the log information is written to block chain.
8. a kind of video management device characterized by comprising
Receiving module, the monitor video for the acquisition of receiving front-end video capture device；
Compression module generates video data for carrying out compression to the monitor video；
Distributed storage module, for carrying out distributed storage to the video data.
9. a kind of system for managing video characterized by comprising client and video management as claimed in claim 8 dress
It sets；The client is connected with the video management device.
10. a kind of electronic equipment, including memory, processor and it is stored on the memory and can transports on the processor
Capable computer program, which is characterized in that the processor realizes the claims 1 to 6 when executing the computer program
The step of described in any item methods.
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