CN113297424A

CN113297424A - Video plan configuration and video content query method and device

Info

Publication number: CN113297424A
Application number: CN202110656894.XA
Authority: CN
Inventors: 曹力
Original assignee: Hangzhou Hikvision System Technology Co Ltd
Current assignee: Hangzhou Hikvision System Technology Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-08-24

Abstract

The embodiment of the invention provides a method and a device for video plan configuration and video content query, which are applied to the technical field of data storage. The method comprises the following steps: when a configuration instruction about a video recording plan of any image acquisition equipment is detected, determining a first storage node to execute the video recording plan from a plurality of storage nodes; configuring a video recording plan for the first storage node, and recording storage corresponding relation of the image acquisition equipment, the first storage node and the first time period; when any storage node is detected to be in fault, configuring a target video plan executed in the storage node in fault to a second storage node which is not in fault, and recording storage corresponding relation of image acquisition equipment, the second storage node and a second time period to which the target video plan belongs; by the scheme, a realization basis can be provided for improving the query efficiency of the video content.

Description

Video plan configuration and video content query method and device

Technical Field

The invention relates to the technical field of data storage, in particular to a method and a device for video plan configuration and video content query.

Background

The video monitoring system is used for monitoring a monitoring point. A conventional video monitoring system includes an image capturing device and a storage node, where the image capturing device is used to capture video content of a monitoring point, and the storage node is used to store the video content captured by the image capturing device according to a video schedule.

When a user needs to inquire the video content, a query request can be sent to the storage node through the client. And after receiving the query request, the storage node generates a response result aiming at the query request based on the stored video content.

In the related art, when a storage node in a video monitoring system is abnormal, a new storage node needs to be configured to continue to store video content acquired by an image acquisition device according to a video schedule. This results in that the video content captured by the same image capturing apparatus may be stored in a plurality of storage nodes. Then, when the video content needs to be queried, a query request needs to be sent to each storage node, which results in low efficiency in querying the video content.

Disclosure of Invention

The embodiment of the invention aims to provide a video plan configuration method and a video plan configuration device, which are used for accurately recording storage corresponding relations among video contents, image acquisition equipment and storage nodes, so that a realization basis is provided for improving the query efficiency of the video contents. In addition, the embodiment of the invention also provides a video content query method to improve the query efficiency of the video content. The specific technical scheme is as follows:

in a first aspect, an embodiment of the present invention provides a video recording plan configuration method, including:

when a configuration instruction about a video recording plan of any image acquisition equipment is detected, determining a first storage node to execute the video recording plan from a plurality of storage nodes;

configuring the video recording plan for the first storage node, and recording storage corresponding relation of the image acquisition equipment, the first storage node and a first time period; wherein the first time period characterizes a time period of video content belonging to the image capture device and stored in the first storage node;

when any storage node is detected to be in fault, configuring a target video recording plan executed in the storage node in fault to a second storage node which is not in fault, and recording storage corresponding relation of image acquisition equipment to which the target video recording plan belongs, the second storage node and a second time period;

wherein the second time period represents a time period of the video content that belongs to the image capture device to which the target video recording plan belongs and is stored in the second storage node.

In one implementation, the recording storage correspondence with respect to the image capture device, the first storage node, and a first time period includes:

determining a first time period with a first time as a starting time and a default null value as an ending time, and storing a storage corresponding relation of the image acquisition equipment, the first storage node and the first time period; the first time is the time when the video recording plan is configured for the first storage node, and the default null value represents that the termination time of the first time period is the current time;

and when the first storage node fault is detected, modifying the termination time in the first time period to the time when the first storage node fault is detected.

In one implementation, the recording storage correspondence regarding the image capture device to which the target video recording plan belongs, the second storage node, and a second time period includes:

determining a second time period which takes a second moment as a starting moment and takes a default null value as an ending moment, and storing a storage corresponding relation of image acquisition equipment, the second storage node and the second time period to which the target video recording plan belongs; the second moment is the moment when the target video plan is configured to the second storage node, and the default null value represents that the termination moment of the second time period is the current moment;

and when the second storage node fault is detected, modifying the termination time in the second time period to the time when the second storage node fault is detected.

In one implementation, the method further comprises:

judging whether the storage nodes in the storage corresponding relation delete the target data or not aiming at each recorded storage corresponding relation, and if so, deleting the storage corresponding relation;

wherein the target data comprises: and the image acquisition equipment in the storage corresponding relation records the video content in the time period in the storage corresponding relation.

In one implementation, the determining whether the storage node in the storage correspondence deletes the target data includes:

determining the cyclic coverage type of the storage nodes in the storage corresponding relation aiming at the video content;

detecting the starting time of the video content of the image acquisition equipment currently stored in the storage node and belonging to the storage corresponding relation based on a detection mode corresponding to the cyclic coverage type and about the starting time of the stored video content;

if the maximum time of the time period in the storage corresponding relation is smaller than the starting time, the storage node in the storage corresponding relation is judged to delete the target data, otherwise, the storage node in the storage corresponding relation is judged not to delete the target data.

In one implementation, the cyclic coverage type is capacity coverage;

the detecting, based on a preset detection manner corresponding to the loop coverage type and regarding the start time of the stored video content, the start time of the video content of the image capturing device currently stored in the storage node and belonging to the storage correspondence relationship includes:

sending a time information query request to the storage node; the time information query request is used for querying the start time of the video content which is currently stored in the storage node and belongs to the image acquisition equipment in the storage corresponding relation;

and receiving the time information fed back by the storage node as the starting time of the video content which is currently stored in the storage node and belongs to the image acquisition equipment in the storage corresponding relation.

In one implementation, the cyclic coverage type is periodic coverage;

and calculating the difference between the current time and the coverage period covered periodically to be used as the starting time of the video content of the image acquisition equipment which is currently stored in the storage node and belongs to the storage corresponding relation.

In a second aspect, an embodiment of the present invention provides a method for querying video content, including:

receiving a video query request sent by a client, wherein the video query request carries query conditions;

determining a target storage node for storing the video content meeting the query condition from a plurality of storage nodes based on each pre-recorded storage corresponding relation; wherein each storage correspondence is obtained by recording according to the method of the first aspect;

acquiring video content meeting the query condition from the target storage node;

and generating a response result aiming at the search instruction based on the acquired video recording content.

In a third aspect, an embodiment of the present invention provides a video recording plan configuration apparatus, including:

the image acquisition device comprises a storage node determining module, a storage node judging module and a video recording module, wherein the storage node determining module is used for determining a first storage node to execute a video recording plan from a plurality of storage nodes when a configuration instruction about the video recording plan of any image acquisition device is detected;

a correspondence recording module, configured to configure the video recording plan for the first storage node, and record a storage correspondence regarding the image acquisition device, the first storage node, and a first time period; wherein the first time period characterizes a time period of video content belonging to the image capture device and stored in the first storage node;

the fault detection module is used for configuring a target video recording plan executed in a storage node with a fault to a second storage node without the fault when the fault of any storage node is detected, and recording the storage corresponding relation of image acquisition equipment, the second storage node and a second time period to which the target video recording plan belongs; wherein the second time period represents a time period of the video content that belongs to the image capture device to which the target video recording plan belongs and is stored in the second storage node.

In a fourth aspect, an embodiment of the present invention provides a video content query apparatus, including:

the request receiving module is used for receiving a video query request sent by a client, wherein the video query request carries query conditions;

the node determining module is used for determining a target storage node which stores the video content meeting the query condition from a plurality of storage nodes based on each pre-recorded storage corresponding relation; wherein each storage correspondence is recorded by the apparatus of the third aspect;

the content query module is used for acquiring the video content meeting the query condition from the target storage node;

and the result generating module is used for generating a response result aiming at the searching instruction based on the acquired video recording content.

In a fifth aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of the first aspect or the second aspect when executing the program stored in the memory.

In a sixth aspect, the present invention is implemented as a computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements the method steps of the first or second aspect.

The embodiment of the invention has the following beneficial effects:

according to the technical scheme provided by the embodiment of the invention, when the video plan is configured, the storage corresponding relation of the image acquisition equipment, the storage node and the time period is recorded when the configuration instruction is received and the storage node configuration is carried out on the video plan, and the storage corresponding relation of the image acquisition equipment, the storage node and the time period is also recorded after the storage node is detected to be failed and a new storage node is switched. Therefore, the configuration scheme can accurately record the storage corresponding relation among the video content, the image acquisition equipment and the storage node, thereby providing a realization basis for improving the query efficiency of the video content and improving the query efficiency of the video content during the query of the video.

In addition, in the query method provided in the embodiment of the present invention, when the video content needs to be queried, a query request does not need to be sent to each storage node, but a target storage node storing the video content meeting the query condition is determined based on each recorded storage correspondence, and the video content meeting the query condition is acquired from the target storage node. Therefore, according to the scheme, the query requests can be prevented from being sent to all the storage nodes, and the query efficiency of the video content is improved.

Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a video recording plan configuration system according to an embodiment of the present invention;

FIG. 2 is a flowchart of a video recording schedule configuration method according to an embodiment of the present invention;

FIG. 3 is another flowchart of a video recording schedule configuration method according to an embodiment of the present invention;

FIG. 4 is a flowchart of a video recording schedule configuration method according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating a video recording schedule configuration method according to an embodiment of the present invention;

fig. 6 is a flowchart of a video content query method according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a video recording schedule configuring apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a video content query device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to improve the query efficiency of the video content, the embodiment of the invention provides a video plan configuration method, a video content query method and a video content query device.

The embodiment of the invention can be applied to various electronic devices, such as personal computers, servers, mobile phones and other devices with data processing capability. Moreover, the data processing method provided by the embodiment of the invention can be realized by software, hardware or a combination of software and hardware.

Optionally, in an embodiment, as shown in fig. 1, an embodiment of the present invention provides a schematic structural diagram of a Video recording plan configuration system, in the diagram, SAM (Storage Area Manager) is a Manager according to the embodiment of the present invention, CVR1, CVR2, cloud Storage 1, and cloud Storage 2 are Storage nodes according to the embodiment of the present invention, and CVR1 and CVR2 are CVR (Central Video Recorder). The image capturing device according to the embodiment of the present invention may be a monitoring camera (not shown in fig. 1).

As shown in fig. 2, a method for configuring a video recording plan according to an embodiment of the present invention may include the following steps:

s201, when a configuration instruction about a video recording plan of any image acquisition device is detected, determining a first storage node to execute the video recording plan from a plurality of storage nodes;

it should be noted that, when a monitored scene is needed to be monitored, a video monitoring system needs to be built for the monitored scene, that is, an image acquisition device is installed at the monitoring point, so that the image acquisition device can acquire the video content of the monitoring point, and a storage node for storing the video content acquired by the image acquisition device needs to be configured for the image acquisition device.

The configuration instruction of the video recording plan of any image acquisition device may be a configuration operation received when a storage node needs to be configured for the image acquisition device. The video plan is used for indicating the storage node to store the video content acquired by the image acquisition equipment in the time specified by the video plan.

Illustratively, the video schedule 1 instructs the storage node 1 to store the video contents acquired by the image acquisition device 1 for 8-17 points of each day, and the video schedule 2 instructs the storage node 2 to store the video contents acquired by the image acquisition device 2 for monday to 5 weeks of each week.

Optionally, in an implementation manner, when a configuration instruction for a video recording plan of the image capturing device sent by the client is received, a first storage node to be executed with the video recording plan is selected from the plurality of storage nodes.

The electronic device implementing the embodiment of the present invention may store node information of a plurality of storage nodes in advance, such as node names, node addresses, and other information related to configuring a video recording plan.

When the first storage node needs to be selected from the plurality of storage nodes, the storage nodes meeting the screening condition can be screened from the plurality of storage nodes according to a preset screening rule. Optionally, in an implementation manner, a storage node with the largest remaining storage capacity may be selected from the plurality of storage nodes as the first storage node according to the size of the remaining storage capacity of the storage node. In another implementation manner, the first storage node may be further selected from the plurality of storage nodes according to the storage type of the storage node. For example, a storage node with a storage type of CVR is selected from the plurality of storage nodes as the first storage node, or a storage node with a storage type of cloud storage is selected from the plurality of storage nodes as the first storage node, or the storage node may be further screened based on attribute information of a plurality of dimensions of the storage node, which is not specifically limited in this embodiment of the present invention.

S202, configuring a video recording plan for the first storage node, and recording storage corresponding relation of the image acquisition equipment, the first storage node and the first time period; the first time period represents the time period of the video content which belongs to the image acquisition equipment and is stored in the first storage node;

the method for configuring the video recording plan for the first storage node is the same as that in the prior art, and this is not specifically limited in the embodiment of the present invention.

After the first storage node completes the video recording plan configuration, the storage corresponding relation of the image acquisition device, the first storage node and the first time period can be recorded in a form of a table.

Exemplary, as shown in table 1:

TABLE 1

Image acquisition device	Storage node	Time period
			Image acquisition apparatus 1	Storage node 1	Time period 1

The first record represents a corresponding relationship among the image capturing device 1, the storage node 1 and the time period 1, that is, the storage node 1 stores therein the video content captured by the image capturing device 1 in the time period 1.

Optionally, when the storage node includes a plurality of resource pools, the storage correspondence relationship between the first storage node and the first resource pool and the first time period may also be recorded at the same time, where the first resource pool is a resource pool in the first storage node, which is used for storing the video content acquired by the image acquisition device in the first time period.

Exemplary, as shown in table 2:

TABLE 2

Image acquisition device	Storage node	Resource pool	Time period
				Image acquisition apparatus 1	Storage node 1	Resource pool 1	Time period1

Table 2 records the correspondence between the image capturing device 1, the storage node 1, the resource pool 1, and the time period 1.

S203, when a fault of any storage node is detected, configuring a target video plan executed in the storage node with the fault to a second storage node without the fault, and recording storage corresponding relation of image acquisition equipment, the second storage node and a second time period to which the target video plan belongs; and the second time period represents the time period of the video content which belongs to the image acquisition equipment to which the target video plan belongs and is stored in the second storage node.

The electronic device executing the embodiment of the invention can monitor the running state of the storage nodes in real time, and when any storage node is detected to be in fault, a second storage node which is not in fault needs to be configured for the image acquisition device corresponding to the storage node in fault.

Optionally, in an implementation manner, the electronic device executing the embodiment of the present invention may establish a heartbeat mechanism with each storage node, and when the heartbeat of any storage node is interrupted, determine that the storage node of the terminal heartbeat is faulty. Or, the detection information may be periodically sent to the storage node, and whether the storage node is faulty or not may be determined according to the response result.

After the storage node failure is detected, the image acquisition device corresponding to the failed storage node may be determined based on the recorded storage correspondence, and then a video recording plan for the image acquisition device, that is, a target video recording plan executed in the failed storage node, is found, and then the target video recording plan is configured to a second storage node that has not failed.

The non-failed second storage node may be determined from the plurality of non-failed storage nodes, and the determining manner of the second storage node is the same as the determining manner of the first storage node from the plurality of storage nodes, which is not described herein again in the embodiments of the present invention.

And then configuring the target video plan executed in the failed storage node to a second storage node which is not failed, and recording the storage corresponding relation of the image acquisition equipment, the second storage node and the second time period to which the target video plan belongs, or optionally, adding the storage corresponding relation of the image acquisition equipment, the second storage node and the second time period to which the target video plan belongs on the basis of the storage corresponding relation of the failed storage node.

Taking table 1 as an example, after detecting that the storage node 1 is faulty, determining that the second storage node is the storage node 2 for the image capturing device 1, at this time, adding a storage correspondence relationship between the image capturing device 1, the storage node 2, and the time period 2, as shown in table 3:

TABLE 3

Image acquisition device	Storage node	Time period
			Image acquisition apparatus 1	Storage node 1	Time period 1
Image acquisition apparatus 1	Storage node 2	Time period 2

In table 3, the time period 2 is a time period representing video content that belongs to the image capturing apparatus 1 and is stored in the storage node 2.

In the solution provided by this embodiment, the storage correspondence relation between the image capturing device, the storage node, and the time period is recorded, and after a storage node failure is detected and a new storage node is switched, the storage correspondence relation between the image capturing device, the storage node, and the time period is also recorded. Therefore, the configuration scheme can accurately record the storage corresponding relation among the video content, the image acquisition equipment and the storage node, thereby providing a realization basis for improving the query efficiency of the video content and improving the query efficiency of the video content during the query of the video.

Optionally, an embodiment of the present invention further provides a video recording plan configuration method, where the recording of the storage correspondence relation between the image capturing device, the first storage node, and the first time period in step S202 may include:

determining a first time period which takes a first time as a starting time and a default null value as an ending time, and storing a storage corresponding relation of the image acquisition equipment, the first storage node and the first time period; the first moment is the moment when a video recording plan is configured for the first storage node, and the default null value represents that the termination moment of the first time period is the current moment;

It should be noted that the first time is a time when the first storage node configures the video recording plan, that is, a time when the first storage node completes configuration of the video recording plan and starts to store the video recording content acquired by the image acquisition device. When the storage node normally operates, the termination time of the storage node is continuously updated, that is, when the storage node normally operates, the termination time of the storage node is the current time. For example, if the storage node 1 completes the configuration of the video recording plan at 17:00, the start time of the storage time is 17:00, when the storage node 1 normally operates to 17:05, the end time is 17:05, and when the storage node 1 normally operates to 17:10, the end time is 17: 10. Therefore, for convenience of recording, before a storage node failure is not detected, its termination time is represented by a default null value.

Taking table 1 as an example, if the storage node 1 completes the configuration of the recording plan at 17:00 on 1/10/2020, the starting time of the time period 1 is 17:00 on 1/10/2020, and the ending time of the time period 1 is a default null value, resulting in table 4:

TABLE 4

Image acquisition device	Storage node	Starting time	End time
				Image acquisition apparatus 1	Storage node 1	17:00 in 1/10/2020

Correspondingly, the recording of the storage correspondence relation between the image capturing device, the first storage node, and the first time period in step S203 may include:

determining a second time period which takes the second moment as a starting moment and takes a default null value as an ending moment, and storing a storage corresponding relation of image acquisition equipment, a second storage node and the second time period to which the target video plan belongs; the second moment is the moment when the target video plan is configured to the second storage node, and the default null value represents that the termination moment of the second time period is the current moment;

When a storage node fault is detected, the storage corresponding relation of the second storage node can be recorded in a mode of recording the storage corresponding relation by the first storage node, and meanwhile, because the first storage node stops acquiring the video content of the image acquisition device when the fault occurs, the time when the video content is stopped is the time when the configuration of the second storage node is completed, namely the starting time of the second storage node.

Taking table 4 as an example for illustration, after detecting that the storage node 1 fails, the reconfigured second storage node is the storage node 2, and the starting time of the storage node 2 is 10 months and 2 days 11:00 in 2020, then the starting time is also the ending time of the storage node 1, that is, table 5 is obtained:

TABLE 5

Image acquisition device	Storage node	Starting time	End time
				Image acquisition apparatus 1	Storage node 1	17:00 in 1/10/2020	Year 2020, 10, 2, 11:00
Image acquisition apparatus 1	Storage node 2	Year 2020, 10, 2, 11:00

Based on the embodiment of fig. 2, as shown in fig. 3, a video recording plan configuration method provided by another embodiment of the present invention may further include:

s204, aiming at each recorded storage corresponding relation, judging whether the storage node in the storage corresponding relation deletes the target data or not, and if so, deleting the storage corresponding relation; wherein the target data includes: and the image acquisition equipment in the storage corresponding relation records the video content in the time period in the storage corresponding relation.

It should be noted that the storage capacity of the storage node is limited, and in order to save the storage capacity, the video contents stored in the storage node may be deleted.

When the video content in the storage node is deleted, the recorded corresponding relationship cannot accurately reflect the storage node where the recorded content acquired by the image acquisition equipment is actually stored. For example, the storage correspondence relationship recorded in table 5 corresponding to the storage node 1, since the storage node 1 has deleted the recorded content of the time period 1, if the storage correspondence relationship of the storage node is recorded, table 5 may not accurately reflect the storage node where the recorded content acquired by the image acquisition device 1 is actually stored. Therefore, the storage correspondence of the storage node 1 needs to be deleted, and table 6 is obtained:

TABLE 6

Image acquisition device	Storage node	Starting time	End time
				Image acquisition apparatus 1	Storage node 2	Year 2020, 10, 2, 11:00

Therefore, it is necessary to determine, for each recorded storage correspondence, whether the storage node in the storage correspondence deletes the target data, and if so, delete the storage correspondence. To maintain the accuracy of storing the corresponding relationship.

Specifically, the determination methods are various and will be described in detail later, and will not be described herein again.

Based on the embodiment of fig. 3, as shown in fig. 4, in the video recording schedule configuring method according to another embodiment of the present invention, the step S204 may include the following steps:

S204A, determining the circular coverage type of the storage node in the storage corresponding relation for the video content;

each storage node is provided with a corresponding cyclic coverage type, wherein the cyclic coverage type comprises a capacity coverage and a periodic coverage.

The capacity coverage is that when the video content stored in the storage node reaches the preset storage capacity, the video content with the earlier acquisition time is deleted, so that the storage capacity of the stored video content is not larger than the preset storage capacity. And the periodical new covering content is the video content which exceeds the preset covering period and is deleted according to the preset covering period.

Optionally, in one implementation, the loop coverage type of the storage node for the video content may be known in advance. Optionally, the loop coverage type of the storage node for the video content may be determined by sending a loop coverage type query request to the storage node.

S204B, detecting the start time of the video content of the image acquisition equipment currently stored in the storage node and belonging to the storage corresponding relation based on the detection mode of the start time of the stored video content corresponding to the loop coverage type;

different cyclic storage types have different detection modes for storing the starting time of the video recording content. Therefore, the start time of the video content currently stored in the storage node and belonging to the image capturing device in the storage correspondence relationship can be detected based on the detection manner for the start time of the stored video content corresponding to the loop overlay type.

Optionally, in an implementation manner, when the cyclic coverage type is capacity coverage, the step S204B may include:

sending a time information query request to the storage node; the time information query request is used for querying the start time of the video content which is currently stored in the storage node and belongs to the image acquisition equipment in the storage corresponding relation; and receiving the time information fed back by the storage node as the starting time of the video content which is currently stored in the storage node and belongs to the image acquisition equipment in the storage corresponding relation.

The video content stored in the storage node is judged whether to be deleted according to the preset storage capacity, so that a time information query request can be sent to the storage node, and the time information fed back by the storage node is enabled to be sent.

Optionally, the time information fed back by the storage node may be the start time of the stored video content directly, or the time information fed back by the storage node may feed back the acquisition time of the stored video content, and use the minimum of the fed-back acquisition times as the start time of the stored video content.

Exemplary, as shown in table 7:

TABLE 7

Numbering	Image acquisition device	Storage node	Starting time	End time
					1	cam01	cvr1	2020-08-26 10:06:12	2020-08-28 12:06:12
2	cam01	hcs1	2020-08-28 12:06:12

Wherein, table 7 is two recorded storage correspondences for the image capture device cam01, which characterize that the recorded content captured by cam01 from 2020-08-2610: 06:12 to 2020-08-2812: 06:12 is stored in cvr1, and the recorded content captured from 2020-08-2812: 06:12 to the current time is stored in hcs 1.

When the storage correspondence relationship of cvr1 is capacity coverage, a time information query request may be sent to cvr1, such as a month query for month 8, so that cvr1 feeds back the time information of the recorded video content for each month 8, as shown in the following table:

TABLE 8

8.1	8.2	8.3	8.4	8.5	8.6	8.7	8.8	8.9	8.10	8.11	8.12
												0	0	0	0	0	0	0	0	0	0	0	0
8.13	8.14	8.15	8.16	8.17	8.18	8.19	8.20	8.21	8.22	8.23	8.24
												0	0	0	0	0	0	0	0	0	0	0	0
8.25	8.26	8.27	8.28	8.29	8.30	8.31
												0	0	0	0	1	1	1

Note that a value of 0 indicates that the recorded content of cam01 was not stored on date cvr1, and a value of 1 indicates that the recorded content of cam01 was stored on date cvr1, indicating that the start time of the recorded content belonging to cam01 currently stored on cvr1 was 8 months and 29 days.

Optionally, in another implementation, when the cyclic coverage type is periodic coverage, the step S204B may include:

and calculating the difference between the current time and the coverage period covered periodically to be used as the starting time of the video content of the image acquisition equipment currently stored in the storage node and belonging to the storage corresponding relation.

For example, hcs1 is a period overlay, the overlay period is 7 days, the current time is 9 month 29, and the difference between the current time and the overlay period of the period overlay is calculated to be 9 month 22, i.e. the start time of the video content belonging to cam01 currently stored in the storage node hcs1 is 9 month 22.

S204C, if the maximum time of the time period in the storage correspondence is smaller than the start time, determining that the storage node in the storage correspondence deletes the target data, otherwise, determining that the storage node in the storage correspondence does not delete the target data.

When the maximum time of the time period in the storage corresponding relation is smaller than the starting time, the video content of the time period in the storage corresponding relation is deleted, otherwise, the storage node in the storage corresponding relation is judged not to delete the target data.

In order to more clearly describe the video recording plan configuration method provided by the embodiment of the present invention, as shown in fig. 5, the embodiment of the present invention further provides a flow diagram of the video recording plan configuration method.

The embodiment of the invention is implemented in SAM, and regularly sends a request for acquiring the cyclic coverage information of the resource pool to a storage node (CRV/cloud storage), and receives the cyclic coverage type of the storage node to which the resource pool belongs, which is fed back by the storage node.

When the capacity is covered, the first video schedule position information of the monitoring point can be acquired, then the month value which represents the month in the starting time is received, the month query is made based on the month value to obtain a return result, the first date with data is determined based on the return result, namely the starting time is determined, then the video schedule information is deleted based on the determined date, namely the corresponding relation is stored. And when the data is periodically covered, calculating the date to be deleted, namely the starting time, and finally deleting the video schedule information.

As shown in fig. 6, a method for querying video content according to an embodiment of the present invention may include the following steps:

s601, receiving a video query request sent by a client, wherein the video query request carries query conditions;

the query condition may include a device identifier of the image device and/or a date of the video content to be queried.

For example, if the video content acquired by the image acquisition device 1 is queried, the query condition includes the device identifier of the image acquisition device 1. For another example, if the video content acquired by the image acquisition device 1 in the time period 1 is queried, the query condition includes the device identifier of the image acquisition device 1 and the time period 1.

S602, determining a target storage node which stores video content meeting the query condition from a plurality of storage nodes based on each pre-recorded storage corresponding relation; wherein, each storage corresponding relation is obtained by recording according to the video plan configuration method provided by the embodiment of the invention;

each storage corresponding relationship is recorded according to the video schedule configuration method provided by the embodiment of the invention, and the embodiment of the invention is not described herein again.

Because the corresponding relation of the image acquisition equipment, the storage nodes and the time period is recorded in the storage corresponding relation, the target storage node in which the video content meeting the query condition is stored can be determined according to the query condition carried in the query condition.

S603, acquiring video content meeting the query conditions from the target storage node;

the method comprises the steps of sending a video content acquisition request to a target storage node, and acquiring the video content meeting the query condition.

S604, based on the obtained video recording content, generating a response result aiming at the searching instruction.

After the video content is obtained, the video content is used as a response result aiming at the search instruction and is fed back to the client.

In the solution provided in this embodiment, when the video content needs to be queried, a query request does not need to be sent to each storage node, but a target storage node storing the video content meeting the query condition is determined based on each recorded storage correspondence, and the video content meeting the query condition is acquired from the target storage node. Therefore, according to the scheme, the query requests can be prevented from being sent to all the storage nodes, and the query efficiency of the video content is improved.

Corresponding to the above video recording plan configuring method, as shown in fig. 7, an embodiment of the present invention further provides a video recording plan configuring apparatus, including:

a storage node determining module 701, configured to determine, when a configuration instruction about a video recording plan of any image capturing device is detected, a first storage node where the video recording plan is to be executed from among a plurality of storage nodes;

a correspondence recording module 702, configured to configure a video recording plan for the first storage node, and record a storage correspondence regarding the image acquisition device, the first storage node, and the first time period; the first time period represents the time period of the video content which belongs to the image acquisition equipment and is stored in the first storage node;

a failure detection module 703, configured to, when a failure of any storage node is detected, configure a target video recording plan executed in the failed storage node to a second storage node that has not failed, and record a storage correspondence relationship between an image acquisition device to which the target video recording plan belongs, the second storage node, and a second time period; and the second time period represents the time period of the video content which belongs to the image acquisition equipment to which the target video plan belongs and is stored in the second storage node.

In one implementation, the correspondence recording module is specifically configured to determine a first time period in which a first time is used as a start time and a default null value is used as an end time, and store a storage correspondence regarding the image acquisition device, the first storage node, and the first time period; the first moment is the moment when a video recording plan is configured for the first storage node, and the default null value represents that the termination moment of the first time period is the current moment; and when the first storage node fault is detected, modifying the termination time in the first time period to the time when the first storage node fault is detected.

In one implementation, the fault detection module is specifically configured to determine a second time period taking a second time as a start time and a default null value as an end time, and store a storage correspondence relation between the image acquisition device to which the target video recording plan belongs, the second storage node, and the second time period; the second moment is the moment when the target video plan is configured to the second storage node, and the default null value represents that the termination moment of the second time period is the current moment; and when the second storage node fault is detected, modifying the termination time in the second time period to the time when the second storage node fault is detected.

In one implementation, the apparatus further comprises:

the corresponding relation deleting module is used for judging whether the storage nodes in the storage corresponding relation delete the target data or not aiming at each recorded storage corresponding relation, and if so, deleting the storage corresponding relation; wherein the target data includes: and the image acquisition equipment in the storage corresponding relation records the video content in the time period in the storage corresponding relation.

In one implementation, the correspondence deletion module is specifically configured to determine a loop coverage type of a storage node in the storage correspondence for the video content; detecting the starting time of the video content of the image acquisition equipment currently stored in the storage node and belonging to the storage corresponding relation based on a detection mode corresponding to the cyclic coverage type and about the starting time of the stored video content; if the maximum time of the time period in the storage corresponding relation is smaller than the initial time, the storage node in the storage corresponding relation is judged to delete the target data, otherwise, the storage node in the storage corresponding relation is judged not to delete the target data.

In one implementation, the cyclic coverage type is capacity coverage;

the corresponding relation deleting module is specifically used for sending a time information query request to the storage node; the time information query request is used for querying the start time of the video content which is currently stored in the storage node and belongs to the image acquisition equipment in the storage corresponding relation; and receiving the time information fed back by the storage node as the starting time of the video content which is currently stored in the storage node and belongs to the image acquisition equipment in the storage corresponding relation.

In one implementation, the cyclic coverage type is periodic coverage;

and the corresponding relation deleting module is specifically used for calculating a difference value between the current time and the coverage period covered periodically, and taking the difference value as the starting time of the video content of the image acquisition equipment which is currently stored in the storage node and belongs to the storage corresponding relation.

In the solution provided in this embodiment, the storage correspondence relationship between the image capturing device, the storage node, and the time slot is recorded not only when the configuration instruction is received to configure the storage node for the video recording plan, but also after a storage node failure is detected and a new storage node is switched, the storage correspondence relationship between the image capturing device, the storage node, and the time slot is recorded. Therefore, the configuration scheme can accurately record the storage corresponding relation among the video content, the image acquisition equipment and the storage node, thereby providing a realization basis for improving the query efficiency of the video content and improving the query efficiency of the video content during the query of the video.

Corresponding to the above video content query method, as shown in fig. 8, an embodiment of the present invention further provides a video content query apparatus, where the apparatus includes:

a request receiving module 801, configured to receive a video query request sent by a client, where the video query request carries query conditions;

a node determining module 802, configured to determine, from a plurality of storage nodes, a target storage node in which video content meeting the query condition is stored, based on each pre-recorded storage correspondence; wherein, each storage corresponding relation is recorded by any one of the video recording plan configuration devices provided by the embodiment of the invention;

a content query module 803, configured to obtain, from the target storage node, video content meeting the query condition;

a result generating module 804, configured to generate a response result for the search instruction based on the obtained video recording content.

An embodiment of the present invention further provides an electronic device, as shown in fig. 9, which includes a processor 901, a communication interface 902, a memory 903, and a communication bus 904, where the processor 901, the communication interface 902, and the memory 903 complete mutual communication through the communication bus 904,

a memory 903 for storing computer programs;

the processor 901 is configured to implement the above-mentioned recording plan configuration method or recording content query method steps when executing the program stored in the memory 903.

The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the electronic equipment and other equipment.

The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.

The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.

In another embodiment of the present invention, a computer-readable storage medium is further provided, in which a computer program is stored, and when executed by a processor, the computer program implements any of the steps of the video plan configuration and video content query method described above.

In another embodiment of the present invention, there is provided a computer program product including instructions, which when run on a computer, cause the computer to perform any one of the video schedule configuration and video content query methods in the above embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the invention are brought about in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus, device, and system embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for relevant points.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A video recording plan configuration method, comprising:

2. The method of claim 1, wherein recording the stored correspondence for the image capture device, the first storage node, and the first time period comprises:

3. The method of claim 1, wherein recording the stored correspondence for the image capture device to which the target video recording plan pertains, the second storage node, and the second time period comprises:

4. The method of claim 1, further comprising:

5. The method of claim 4, wherein the determining whether the storage node in the storage mapping relation deletes the target data comprises:

6. The method of claim 5, wherein the cyclic coverage type is capacity coverage;

7. The method of claim 5, wherein the cyclic coverage type is periodic coverage;

8. A video content query method is characterized by comprising the following steps:

determining a target storage node for storing the video content meeting the query condition from a plurality of storage nodes based on each pre-recorded storage corresponding relation; wherein each storage correspondence is recorded according to the method of any one of claims 1 to 7;

9. A video recording plan configuring apparatus, comprising:

10. A video content inquiry apparatus, comprising:

the node determining module is used for determining a target storage node which stores the video content meeting the query condition from a plurality of storage nodes based on each pre-recorded storage corresponding relation; wherein each storage correspondence is recorded according to the method of any one of claims 1 to 7;

11. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of any one of claims 1 to 7, or the method steps of claim 8, when executing a program stored in a memory.

12. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of the claims 1-7 or the method steps of claim 8.