CN113194295B - Monitoring data storage system - Google Patents
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- CN113194295B CN113194295B CN202110481941.1A CN202110481941A CN113194295B CN 113194295 B CN113194295 B CN 113194295B CN 202110481941 A CN202110481941 A CN 202110481941A CN 113194295 B CN113194295 B CN 113194295B
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/51—Indexing; Data structures therefor; Storage structures
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2181—Source of audio or video content, e.g. local disk arrays comprising remotely distributed storage units, e.g. when movies are replicated over a plurality of video servers
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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
- H04N21/4334—Recording operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
- H04N23/631—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters
- H04N23/632—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters
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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
Abstract
The invention relates to the technical field of video monitoring, and particularly discloses a monitoring data storage system, which comprises a local management module and a plurality of video acquisition modules; the video acquisition module is used for acquiring image data, and the local management module is used for acquiring and storing the image data; the system also comprises a video output module and a cloud management module; the video output module is used for acquiring image data from the video acquisition module and converting the image data according to a preset coding format; the cloud management module is used for acquiring the converted image data, analyzing whether a preset abnormal condition exists or not based on the converted image data, and if so, generating and storing a screenshot of the abnormal condition; the cloud management module is also used for reading the stored image data from the local management module. By adopting the technical scheme of the invention, centralized management of the monitoring data can be facilitated.
Description
Technical Field
The invention relates to the technical field of video monitoring, in particular to a monitoring data storage system.
Background
Video surveillance systems are becoming more and more popular in various industries, and the amount of video data collected and stored is increasing rapidly, which presents a great challenge to users in collecting useful information from a large amount of video data. In the past, a large amount of manpower and material resources are used, and each segment of stored video data is browsed and monitored by a manual method. The online camera is rarely concerned, once an alarm event or other accidents occur, the search can be carried out in a video searching mode after the event, and therefore much inconvenience is brought to users.
To this end, chinese patent publication No. CN107835388A discloses an intelligent and automatic analysis system for surveillance video, the system comprising: the storage unit is used for storing the monitoring video information; an input unit for inputting keywords to be analyzed; the intercepting unit is used for intercepting the monitoring video to obtain a corresponding screenshot; and the generating unit is used for generating all the corresponding information of the monitoring videos containing the corresponding information of the screenshots on the basis of the screenshots.
By the scheme, the technical problems that the efficiency of the existing manual analysis monitoring video is low and the key information is easy to miss are solved, and the analysis efficiency is improved. However, in the above scheme, the screenshot is directly performed on the original surveillance video information, the data volume of the original surveillance video information is large, and the analysis processing cost is high. Moreover, if the analysis processing is set in the local processing, the processing capacity of the local equipment is required to be higher, if the monitoring is required in an immobile area, the local equipment is required to be set in each area, the cost is higher, and the centralized management is not convenient; if set up the analysis and processing in the high in the clouds, though visit conveniently, can carry out centralized management, but the requirement of the original surveillance video of direct transmission to the bandwidth is high, and when surveillance video is in large quantities, the pressure of high in the clouds processing apparatus is big.
For this reason, there is a need for a monitoring data storage system that can facilitate centralized management of monitoring data.
Disclosure of Invention
The invention provides a monitoring data storage system which can conveniently perform centralized management on monitoring data.
In order to solve the technical problem, the present application provides the following technical solutions:
a monitoring data storage system comprises a local management module and a plurality of video acquisition modules;
the video acquisition module is used for acquiring image data, and the local management module is used for acquiring and storing the image data;
the system also comprises a video output module and a cloud management module;
the video output module is used for acquiring image data from the video acquisition module and converting the image data according to a preset coding format;
the cloud management module is used for acquiring the converted image data, analyzing whether a preset abnormal condition exists or not based on the converted image data, and if so, generating and storing a screenshot of the abnormal condition;
the cloud management module is also used for reading the stored image data from the local management module.
The basic scheme principle and the beneficial effects are as follows:
in the scheme, the image data acquired by the video acquisition module is directly stored in the local management module, so that the original image data is reserved, and the original image data can be conveniently played back under the abnormal condition.
The video output module can compress the image data by converting the format of the image data, so that the image data is more suitable for network transmission and real-time preview. The cloud management module analyzes whether a preset abnormal condition exists or not based on the converted image data, and compared with the original image data, the cloud management module can reduce the data processing amount and reduce the operating pressure of the cloud management module.
When the converted image data has a preset abnormal condition, a screenshot of the abnormal condition is generated and stored, and the abnormal condition can be recorded, so that subsequent evidences are facilitated. Relevant staff knows the condition fast through transferring the screenshot, compares with current manual work video recording playback, and efficiency is higher.
And when a video playback requirement exists, the local management module can be accessed through the cloud management module, and the stored image data is read for playback. Because the playback is usually performed after abnormal conditions exist, the frequency of daily use is low, the times are few, and the occupation on the bandwidth is small. To sum up, this scheme can conveniently carry out centralized management to the control data.
Further, the cloud management module also prestores the position data of each video acquisition module; the cloud management module is further used for storing the current time and the position data corresponding to the video acquisition module while generating the abnormal condition screenshot.
And related workers can conveniently and quickly know the event occurrence time, the occurrence place and other related information.
Further, the cloud management module is also used for acquiring linkage alarm information; the linkage alarm information comprises alarm items, alarm time and alarm positions; the cloud management module is further used for judging whether a video acquisition module exists in the alarm position according to the alarm position and the position data of each video acquisition module, judging whether a preset abnormal condition exists in the image data corresponding to the converted video acquisition module if the video acquisition module exists, reading the image data corresponding to the video acquisition module from the local management module by the cloud management module if the video acquisition module does not exist, analyzing whether the preset abnormal condition exists based on the image data, and generating a screenshot of the abnormal condition and storing the screenshot if the abnormal condition exists.
For example, in the comprehensive monitoring of a residential area, a garden, and the like, there are not only video monitoring, but also an access control system, a barrier management system, a perimeter alarm system, and the like. The cloud management module can be linked with the systems to cross verify abnormal conditions. After the cloud management module receives the linkage alarm information of the systems, if the corresponding converted image data has no preset abnormal condition, the converted image data may lose some details, and at the moment, the original image data is analyzed, so that the analysis accuracy can be improved.
Further, when the cloud management module analyzes image data corresponding to the video acquisition module and does not have a preset abnormal condition, the short video with the first preset duration is intercepted and stored based on the alarm time.
Based on the short video of alarm time intercepting first preset duration and storage, the relevant staff of being convenient for carries out secondary analysis through the short video, compares with direct whole image data of reviewing, and efficiency is higher.
Further, the video output module comprises a video matrix and a video acquisition encoder, wherein the video matrix is used for acquiring image data from all the video acquisition modules and switching the image data output of each acquisition module; the video acquisition encoder is used for converting image data output by the video matrix according to a preset encoding format.
The video matrix can output the m paths of image data to the cloud management module by an array switching method in an arbitrary n-path mode, and compared with the whole output, the processing amount of the data can be reduced.
Furthermore, the local management module is further used for verifying the reading authority of the cloud management module, and when the reading authority passes the verification, the cloud management module is permitted to read the stored image data.
By verifying the reading authority, the safety of the local image data can be ensured, and random access is avoided.
Further, the first preset time is 5-30 seconds.
The system further comprises a user side, wherein the user side is used for accessing the cloud management module and acquiring the converted image data from the cloud management module for real-time preview.
Related workers can access the cloud management module through the user side and watch the converted image data in real time, namely, the images are monitored in real time.
Further, the cloud management module is further used for storing image data of a second preset duration; the image data is the image data which is previewed by the user terminal in real time.
Further, the cloud management module is further configured to acquire a current network condition and determine a second preset duration based on the network condition.
Drawings
FIG. 1 is a logic block diagram of an embodiment of a monitored data storage system.
Detailed Description
The following is further detailed by way of specific embodiments:
example one
As shown in fig. 1, the monitoring data storage system of the embodiment includes a cloud management module, a local management module, a video output module, and a plurality of video acquisition modules.
The video acquisition module is used for acquiring image data. In this embodiment, the video capture module adopts a camera.
The local management module is used for acquiring and storing the image data. In this embodiment, the local management module adopts a hard disk video recorder, and has functions of camera control and the like in addition to the storage of image data.
The video output module is used for acquiring the image data from the video acquisition module and converting the image data according to a preset coding format. In this embodiment, the video output module includes a video matrix and a video capture encoder, and the video matrix is used to acquire image data from all the video capture modules and switch the image data output of each capture module; the video acquisition encoder is used for converting image data output by the video matrix according to a preset encoding format. For example, the video matrix acquires image data of m acquisition modules and outputs image data of n acquisition modules, wherein m > n. The encoding format can adopt a high-definition low-code-stream H.264 encoding format.
The cloud management module prestores the position data of each video acquisition module. The cloud management module is used for acquiring the converted image data, analyzing whether a preset abnormal condition exists or not based on the converted image data, if so, generating a screenshot of the abnormal condition, and storing the screenshot, the current time and the position data corresponding to the video acquisition module. The abnormal condition may be set according to the monitored environment. For example, in cell monitoring, the abnormal condition may be that a person crosses a fence, and after analyzing the fence crossed by the person based on the converted image data, the cloud management module may generate a screenshot crossing the fence.
The local management module is also used for verifying the reading authority of the cloud management module, and after the reading authority passes the verification, the cloud management module is permitted to read the stored image data.
The cloud management module is also used for acquiring linkage alarm information; the linkage alarm information comprises alarm items, alarm time and alarm positions. For example, in the comprehensive monitoring of a residential area, a garden, and the like, there are not only video monitoring, but also an access control system, a barrier management system, a perimeter alarm system, and the like. Correspondingly, the alarm item of the barrier gate management system can be that a person breaks the barrier gate, and the alarm item of the perimeter alarm system can be that an object invades. The cloud management module is further used for judging whether a video acquisition module exists in the alarm position according to the alarm position and the position data of each video acquisition module, judging whether a preset abnormal condition exists in the image data corresponding to the converted video acquisition module if the video acquisition module exists, reading the image data corresponding to the video acquisition module from the local management module by the cloud management module if the video acquisition module does not exist, analyzing whether the preset abnormal condition exists or not based on the image data, and generating a screenshot of the abnormal condition and storing the screenshot if the preset abnormal condition exists; and if the preset abnormal condition does not exist, intercepting and storing the short video with the first preset time length based on the alarm time. The first predetermined period is 5 to 30 seconds, in this embodiment 15 seconds.
Example two
The difference between this embodiment and the first embodiment is that the present embodiment further includes a user side, where the user side is configured to access the cloud management module, obtain the converted image data from the cloud management module to perform real-time preview, and view a screenshot and a short video. The user side can be a desktop computer, a notebook computer, a tablet computer or a mobile phone and the like.
EXAMPLE III
The difference between this embodiment and the second embodiment is that, in this embodiment, the cloud management module is further configured to obtain a current network status, and determine a second preset duration based on the network status. In this embodiment, the cloud management module stores a table of correspondence between network conditions and second preset durations, where the network conditions specifically refer to network speeds, and a unique second preset duration may be determined in the table of correspondence between the network conditions and the second preset durations according to the current network speed.
The cloud management module is further used for storing image data of a second preset duration; the image data is the image data which is previewed by the user terminal in real time. The cloud management module is also used for pushing the stored image data to the user side when receiving a playback request of the user side; the cloud management module is further used for acquiring the stored image data from the local management module, and pushing the image data stored by the local management module when the pushing of the stored image data is finished. In this embodiment, when the cloud management module pushes the stored image data, if the remaining non-pushed stored image data is equal to the preset review duration, the cloud management module obtains the stored image data from the local management module. In this embodiment, the preset review duration is the same as the second preset duration, and is determined by the current network; in other embodiments, the preset review duration may also be a fixed value. For example, the stored image data is 10 seconds, the remaining non-pushed stored image data is equal to the preset review time duration of 5 seconds, that is, the user has watched 5 seconds, and then acquires the stored image data from the local management module, compared with the case that the user immediately acquires the stored image data from the local management module after reviewing, when the user reviews only 4 seconds, the preferred scheme does not establish connection with the local management module, does not acquire the stored image data from the local management module, and can reduce occupation of network bandwidth.
In this embodiment, the image data stored by the push local management module should remain temporally continuous with the stored image data. The playback in this embodiment refers to playing from the current time backward to the previous time, i.e., the time progress bar moves from right to left.
The cloud management module stores the image data with the second preset time length, so that when the user side plays back, the stored image data can be played back first, sufficient time is provided for the cloud management module to be connected with the local management module, and the image data are obtained from the local management module. Compared with the mode that image data are directly acquired from the local storage device for watching, the probability of generating pause or long-time loading is lower, and the watching-back experience of a user can be effectively improved. The second preset time is dynamically adjusted on the whole according to the network condition, the phenomenon that the stored image data is overlarge due to the fact that the second preset time is too long can be avoided on the premise that user experience is guaranteed, and the storage pressure of the cloud management module is reduced. For example, when the network state is poor, by increasing the preset time length, longer image data can be stored, and a user needs longer time to see the image data back, so that more time can be indirectly given to the cloud management module to establish connection with the local management module.
The cloud management module is further used for judging whether the real-time preview duration of the user side is larger than a second preview threshold value when the number of the user sides previewing the same image data is equal to one, judging whether a picture is changed based on the stored image data if the real-time preview duration of the user side is larger than the second preview threshold value, judging whether associated linkage alarm information exists in the corresponding video acquisition module if the picture is not changed, and not storing the image data of the corresponding video acquisition module any more if the picture is not changed, wherein the second preview threshold value is larger than the first preview threshold value. The second preview threshold is 30-60 minutes, in this embodiment 60 minutes.
When the user terminal previews in real time for a long time without reviewing operation, and meanwhile, the associated linkage alarm information does not exist, the picture is not changed, the probability of the user playing back the image data is low, for example, a certain user terminal only monitors and previews in real time for 24 hours. Corresponding image data are not stored any more, and the storage pressure of the cloud management module can be reduced.
The above are merely examples of the present invention, and the present invention is not limited to the field related to this embodiment, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art can know all the common technical knowledge in the technical field before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the scheme, and some typical known structures or known methods should not become barriers to the implementation of the present invention by those skilled in the art in light of the teaching provided in the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several variations and modifications can be made, which should also be considered as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. A monitoring data storage system comprises a local management module and a plurality of video acquisition modules;
the video acquisition module is used for acquiring image data, and the local management module is used for acquiring and storing the image data;
the system is characterized by also comprising a video output module and a cloud management module;
the video output module is used for acquiring image data from the video acquisition module and converting the image data according to a preset coding format;
the cloud management module is used for acquiring the converted image data, analyzing whether a preset abnormal condition exists or not based on the converted image data, and if so, generating and storing a screenshot of the abnormal condition;
the cloud management module is also used for reading the stored image data from the local management module;
the cloud management module is also prestored with the position data of each video acquisition module; the cloud management module is also used for storing the current time and the position data corresponding to the video acquisition module while generating the abnormal condition screenshot;
the cloud management module is further used for acquiring linkage alarm information; the linkage alarm information comprises alarm items, alarm time and alarm positions; the cloud management module is further used for judging whether a video acquisition module exists in the alarm position according to the alarm position and the position data of each video acquisition module, judging whether a preset abnormal condition exists in the image data corresponding to the converted video acquisition module if the video acquisition module exists, reading the image data corresponding to the video acquisition module from the local management module by the cloud management module if the video acquisition module does not exist, analyzing whether the preset abnormal condition exists based on the image data, and generating a screenshot of the abnormal condition and storing the screenshot if the abnormal condition exists.
2. The monitored data storage system of claim 1, wherein: and when the cloud management module analyzes image data corresponding to the video acquisition module based on no preset abnormal condition, the short video with the first preset duration is intercepted and stored based on the alarm time.
3. The monitored data storage system of claim 2, wherein: the video output module comprises a video matrix and a video acquisition encoder, wherein the video matrix is used for acquiring image data from all the video acquisition modules and switching the image data output of each acquisition module; the video acquisition encoder is used for converting image data output by the video matrix according to a preset encoding format.
4. The monitored data storage system of claim 3, wherein: the local management module is further used for verifying the reading authority of the cloud management module, and after the reading authority passes the verification, the cloud management module is permitted to read the stored image data.
5. The monitored data storage system of claim 4, wherein: the first preset time is 5-30 seconds.
6. The monitored data storage system of claim 5, wherein: the system further comprises a user side, wherein the user side is used for accessing the cloud management module and acquiring the converted image data from the cloud management module to preview in real time.
7. The monitored data storage system of claim 6, wherein: the cloud management module is further used for storing image data of a second preset duration; the image data is the image data which is previewed by the user terminal in real time.
8. The monitored data storage system of claim 7, wherein: the cloud management module is further used for acquiring the current network condition and determining a second preset time length based on the network condition.
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| CN114295686B (en) * | 2021-12-30 | 2023-11-03 | 山东土地集团数字科技有限公司 | Monitoring and identifying system and method for land structure change |
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