CN111787256A - Management method, device, medium and electronic equipment for pre-alarm video - Google Patents
Management method, device, medium and electronic equipment for pre-alarm video Download PDFInfo
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- CN111787256A CN111787256A CN201911149096.7A CN201911149096A CN111787256A CN 111787256 A CN111787256 A CN 111787256A CN 201911149096 A CN201911149096 A CN 201911149096A CN 111787256 A CN111787256 A CN 111787256A
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
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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
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Abstract
The embodiment of the application discloses a management method, a device, a medium and electronic equipment for pre-alarm video. The method is implemented by a video server before alarm, wherein the video server before alarm is connected with a network camera through a local area network and is connected with a management platform through a wide area network, and the method comprises the following steps: receiving and storing a pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network; and if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network. By executing the technical scheme, the pre-alarm video can be stored by the pre-alarm video server and provided for the management platform when needed, so that the storage problem and the transmission problem of the pre-alarm video can be solved.
Description
Technical Field
The embodiment of the application relates to the technical field of computers, in particular to a management method, a management device, a management medium and electronic equipment for pre-alarm video.
Background
With the rapid development of the technology level, people rely on the safety of living environment more and more. Therefore, a large number of monitoring devices have been developed.
At present, in the field of video monitoring, the intelligent identification technology of a front-end network camera is more and more abundant, and various alarm events can be generated, such as: motion detection, video loss, occlusion detection, face recognition, area intrusion, accident occurrence, and the like. These alarm events are often important critical information, and generally, the alarm videos need to be saved for later search, so as to obtain evidence or trace back the cause of the event. Moreover, a period of time (generally several seconds to several minutes) before the alarm is often recorded, namely, the recording before the alarm is particularly important, so that the existing better video monitoring integrated management platform (hereinafter referred to as a management platform) can store complete video or all the recording before the alarm in real time. However, when the management platform and the network cameras are in different wide area network environments, due to the fact that the number of the network cameras is large, the network environment is complex, bandwidth resources are limited frequently, and important alarm videos are stored in many network cameras, the video content is not complete enough, and the actual significance of installation of the network cameras is affected.
Disclosure of Invention
The embodiment of the application provides a management method, a device, a medium and electronic equipment for pre-alarm video, which can complete storage of the pre-alarm video through a pre-alarm video server and provide the pre-alarm video to a management platform when needed, so that the storage problem and the transmission problem of the pre-alarm video can be solved.
In a first aspect, an embodiment of the present application provides a method for managing pre-alarm video, where the method is executed by a pre-alarm video server, the pre-alarm video server is connected to a network camera through a local area network and connected to a management platform through a wide area network, and the method includes:
receiving and storing a pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network;
and if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network.
Optionally, after receiving the pre-alarm video recorded by the network camera according to the alarm event, the method further includes:
identifying a unique identifier of the pre-alarm video; wherein the unique identifier is generated by a web camera;
correspondingly, if a trigger event for acquiring the target pre-alarm video is detected, the target pre-alarm video is transmitted to the management platform through a wide area network, and the method comprises the following steps:
if a trigger event for acquiring the target pre-alarm video is detected, determining a unique identifier of the target pre-alarm video;
and determining the target pre-alarm video according to the comparison result of the unique identifier of the target pre-alarm video and the stored unique identifiers of all the pre-alarm videos, and transmitting the target pre-alarm video to the management platform through a wide area network.
Optionally, before receiving a pre-alarm video recorded by the network camera according to the alarm event, the method further includes:
determining the identity code of a network camera in the current local area network;
and associating the identity code of the network camera with the identity code of the network camera, transmitting the association relation to the management platform, and performing association storage.
In a second aspect, an embodiment of the present application provides a method for managing pre-alarm videos, where the method includes:
the method is implemented by a network camera, the network camera is connected with a pre-alarm video server through a local area network and is connected with a management platform through a wide area network, the pre-alarm video server is connected with the management platform through the wide area network, and the method comprises the following steps:
if the alarm event is detected, determining the video data with preset time length before the alarm event as the pre-alarm video;
sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to the management platform, and sending the video data after the alarm event to the management platform.
Optionally, after determining the video data of the preset duration before the alarm event as the pre-alarm video, the method further includes:
adding a unique identifier to the pre-alarm video;
correspondingly, the alarm event is sent to the management platform, and the method comprises the following steps:
and sending the alarm event and the unique pre-alarm video identifier of the alarm event to a management platform so that the management platform can obtain the pre-alarm video from a pre-alarm video server according to the unique pre-alarm video identifier.
Optionally, the unique identifier includes at least one of an alarm event type and an alarm event time.
In a third aspect, an embodiment of the present application provides a method for managing pre-alarm video, where the method is executed by a management platform, the management platform is connected to a pre-alarm video server and a network camera through a wide area network, and the network camera is connected to the pre-alarm video server through a local area network, and the method includes:
receiving an alarm event sent by a network camera;
receiving and storing video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video.
In a fourth aspect, an embodiment of the present application provides a management apparatus for pre-alarm video, where the apparatus is configured in a pre-alarm video server, the pre-alarm video server is connected to a network camera through a local area network and is connected to a management platform through a wide area network, and the apparatus includes:
the pre-alarm video storage module is used for receiving and storing pre-alarm videos recorded by the network camera according to the alarm events; the pre-alarm video is acquired by a network camera and received through a local area network;
and the target pre-alarm video transmission module is used for transmitting the target pre-alarm video to the management platform through a wide area network if the trigger event for acquiring the target pre-alarm video is detected.
In a fifth aspect, an embodiment of the present application provides a management apparatus for pre-alarm video, where the apparatus is configured in a network camera, the network camera is connected to a pre-alarm video server through a local area network and is connected to a management platform through a wide area network, the pre-alarm video server is connected to the management platform through the wide area network, and the apparatus includes:
the pre-alarm video determining module is used for determining the video data with the preset time length before the alarm event as the pre-alarm video if the alarm event is detected;
the alarm event processing module is used for sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to a management platform, and sending the video data after the alarm event to the management platform.
In a sixth aspect, an embodiment of the present application provides a management device for pre-alarm video, the device is configured on a management platform, the management platform is connected to a pre-alarm video server and a network camera through a wide area network, the network camera is connected to the pre-alarm video server through a local area network, and the device includes:
the alarm event receiving module is used for receiving the alarm event sent by the network camera;
the target pre-alarm video acquisition module is used for receiving and storing video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video.
In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a method for managing a pre-alarm video according to an embodiment of the present application.
In an eighth aspect, an embodiment of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the computer program to implement the method for managing a pre-alarm video according to the embodiment of the present application.
The technical scheme provided by the embodiment of the application is implemented through a video server before warning, the video server before warning is connected with a network camera through a local area network and is connected with a management platform through a wide area network, and the method comprises the following steps: receiving and storing a pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network; and if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network. Through adopting the technical scheme that this application provided, can accomplish through video recording server before warning and save the video before warning to provide management platform when needs, thereby can solve the storage problem and the transmission problem of video before warning.
Drawings
Fig. 1 is a flowchart of a method for managing pre-alarm videos according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a method for managing pre-alarm videos according to an embodiment of the present disclosure;
fig. 3 is a flowchart of a method for managing pre-alarm videos according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a management apparatus for pre-alarm video recording according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a management apparatus for pre-alarm video recording according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a management apparatus for pre-alarm video recording according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only a part of the structure related to the present application is shown in the drawings, not the whole structure.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Fig. 1 is a flowchart of a method for managing pre-alarm video according to an embodiment of the present application, where the method is applicable to a case of managing pre-alarm video, and the method can be executed by a device for managing pre-alarm video according to an embodiment of the present application, and the device can be implemented by software and/or hardware, and can be integrated in a server device for pre-alarm video.
As shown in fig. 1, the method for managing pre-alarm videos includes:
s110, receiving a pre-alarm video recorded by the network camera according to the alarm event, and storing the pre-alarm video; the pre-alarm video is acquired by a network camera and received through a local area network.
The pre-warning video server is connected with the network camera through a local area network and connected with the management platform through a wide area network. In the technical scheme, the number of the video servers before alarm in each local area network can be determined according to requirements. Because the storage space of the pre-alarm video server is sufficient, one pre-alarm video server can be configured in each local area network under the condition that the network allows, so that the pre-alarm video of each network camera can be stored.
Because the storage capacity of the network camera is limited, and the time length of the pre-alarm video is generally within 10 minutes, such as 1 minute or 2 minutes, the pre-alarm video can be stored and sent to the pre-alarm video server at the local end after the network camera generates an alarm event. Because the network camera and the pre-alarm video server are transmitted through the local area network, the pre-alarm video can be well stored under the condition of external network interruption. Therefore, the scheme adopts a mode of designing the pre-alarm video server in the local area network, and can solve the problems of network transmission bandwidth and network interruption.
After the network interruption, the management platform can request the information of the pre-alarm video and the alarm type, time and the like during the interruption from the pre-alarm video server according to the unique code of the network camera, and completely restore the important events in the interruption process. Or, the user selectively requests all pre-alarm videos and alarm events of a certain period of time of a certain network camera from the pre-alarm video server and reports the pre-alarm videos and the alarm events to the management platform.
In the scheme, after the network camera sends the pre-alarm video to the pre-alarm video server, the locally stored video data can be removed, so that the local storage space can be fully utilized.
And S120, if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network.
The management platform may be a platform that is operated by a user to call the pre-alarm video. The management platform can send out a target pre-alarm video acquisition request based on the operation of a user or automatic identification. Because the pre-alarm video is stored in the pre-alarm video server, the acquisition request can be sent to the pre-alarm video server, and the pre-alarm video server returns the target pre-alarm video required by the management platform. In this embodiment, in addition to being acquired by the management platform, the pre-alarm video may be periodically pushed to the management platform. In this case, the target pre-alarm video may be determined based on the conditions of each push.
The target pre-alarm video can be one video or a plurality of videos. For example, the pre-alarm video stored in the pre-alarm video server may be transmitted every week and stored in the management platform, all the pre-alarm videos in the past week may be obtained, and the target pre-alarm video is a plurality of videos at this time. Or a unique target pre-alarm video can be determined according to the operation of the user.
In this technical solution, optionally, after receiving the pre-alarm image recorded by the network camera according to the alarm event, the method further includes: identifying a unique identifier of the pre-alarm video; wherein the unique identification is generated by a web cam; correspondingly, if a trigger event for acquiring the target pre-alarm video is detected, the target pre-alarm video is transmitted to the management platform through a wide area network, and the method comprises the following steps: if a trigger event for acquiring the target pre-alarm video is detected, determining a unique identifier of the target pre-alarm video; and determining the target pre-alarm video according to the comparison result of the unique identifier of the target pre-alarm video and the stored unique identifiers of all the pre-alarm videos, and transmitting the target pre-alarm video to the management platform through a wide area network.
The unique identifier is generated by the network camera, and specifically, the unique identifier can be generated according to the time and the type of the alarm event. For example, the time information and type information of the alarm event is included in the unique identification. The unique identifier may be carried in the pre-alarm video file in a named form or in a video header file. Meanwhile, the alarm event information sent to the management platform by the network camera can also carry the unique identifier. After the pre-alarm video is sent to the pre-alarm video server, the pre-alarm video server can identify and extract the unique identifier, so that after a target pre-alarm video acquisition request is received, the target pre-alarm video is determined from the locally stored pre-alarm video according to the unique identifier of the pre-alarm video, which needs to be acquired, carried in the target pre-alarm video acquisition request. Through the setting of unique identification, can carry out accurate management to the video recording before warning in video recording management system before warning, not only accord with user's the demand of looking over in real time, can also improve the computational efficiency of each end.
On the basis of the above technical solution, optionally, before receiving a pre-alarm video recorded by the network camera according to the alarm event, the method further includes: determining the identity code of a network camera in the current local area network; and associating the identity code of the network camera with the identity code of the network camera, transmitting the association relation to the management platform, and performing association storage.
After the pre-alarm video server is arranged in the local area network, the identity codes of all the network cameras in the current local area network are acquired through the pre-alarm video server, and the incidence relation is sent to the management platform through the wide area network so that the management platform can store the incidence relation. Based on the incidence relation, when the pre-alarm video needs to be called, the target pre-alarm video server can be determined according to the identity code of the network camera and called. And when the pre-alarm video of a certain local area network is called, the pre-alarm video can be called through the self identity code of the pre-alarm video server. This arrangement has the advantage of facilitating the quick determination of pre-alarm video servers and acquisition of pre-alarm video from other dimensions.
The technical scheme provided by the embodiment of the application is implemented through a video server before warning, the video server before warning is connected with a network camera through a local area network and is connected with a management platform through a wide area network, and the method comprises the following steps: receiving and storing a pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network; and if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network. Through adopting the technical scheme that this application provided, can accomplish through video recording server before warning and save the video before warning to provide management platform when needs, thereby can solve the storage problem and the transmission problem of video before warning.
Fig. 2 is a flowchart of a management method for pre-alarm video according to an embodiment of the present application, where the method is applicable to a case of managing pre-alarm video, and the method can be executed by a management apparatus for pre-alarm video according to an embodiment of the present application, and the apparatus can be implemented by software and/or hardware, and can be integrated in a network camera device.
As shown in fig. 2, the method for managing pre-alarm videos includes:
s210, if the alarm event is detected, determining the video data with the preset time length before the alarm event as the pre-alarm video.
The alarm event may be an event of motion detection, video loss, occlusion detection, face recognition, regional intrusion, accident occurrence, or the like. The manner of detecting an alarm event may be by way of image recognition or packet transmission management. When the alarm event is detected, the preset time length of the video data before the alarm event can be determined as the pre-alarm video. In the network camera, videos can be dynamically stored all the time, for example, the preset time is 1 minute, when a video stream is recorded, video stream data within 1 minute before the current time can be stored, and video stream data beyond 1 minute before the current time can be deleted. Then when an alarm event is detected, it may be determined that the currently stored video data for the period of time is pre-alarm video.
S220, sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to a management platform, and sending the video data after the alarm event to the management platform.
The pre-alarm video is transmitted to the pre-alarm video server through the local area network to be stored. Because the data transmission is carried out between the network camera and the pre-alarm video server through the local area network, the pre-alarm video can still be well stored under the condition that the external network is interrupted.
The alarm event may be sent to the management platform while the pre-alarm video is sent. After receiving the alarm event, the management platform can receive and store the video data after the alarm event, namely, receive and store the post-alarm video. At this time, if the external network is interrupted, the recording after alarm cannot be stored, and an alarm event can be sent to the management platform after the external network is recovered to be normal. Since the information of the alarm event may include the time information of the occurrence of the alarm event, if the time is inconsistent with the current time of the management platform or differs from the current time by a long time, the alarm event received in a delayed manner may be determined, and the post-alarm video is not stored.
The technical scheme that this application embodiment provided carries out through the internet protocol camera, the internet protocol camera passes through the LAN with the video server before policing and is connected to pass through the WAN with the management platform and be connected, the video server before policing with the management platform passes through the WAN and connects, the method includes: if the alarm event is detected, determining the video data with preset time length before the alarm event as the pre-alarm video; sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to a management platform, and sending the video data after the alarm event to the management platform. Through adopting the technical scheme that this application provided, can accomplish through video recording server before warning and save the video before warning to provide management platform when needs, thereby can solve the storage problem and the transmission problem of video before warning.
On the basis of the above technical solution, optionally, after determining the video data of the preset duration before the alarm event as the pre-alarm video, the method further includes: adding a unique identifier to the pre-alarm video; correspondingly, the alarm event is sent to the management platform, and the method comprises the following steps: and sending the alarm event and the unique pre-alarm video identifier of the alarm event to a management platform so that the management platform can obtain the pre-alarm video from the pre-alarm video server according to the unique pre-alarm video identifier. Wherein, each pre-alarm video can be distinguished by adding a unique identifier. And the target pre-alarm video can be quickly and accurately determined in the interaction process between the management platform and the pre-alarm video server.
On the basis of the above technical solutions, optionally, the unique identifier includes at least one of an alarm event type and an alarm event time. Wherein the unique identifier may include an alarm event type and an alarm event time. The alarm event types can be classified into the alarm events, and numbers are set for each classification, so that codes of the alarm event types are obtained and edited in the unique identifier. In addition, the time of occurrence of an alarm event may be encoded or the alarm type and time of occurrence of the alarm may be encoded in combination. Through the arrangement, each end in the pre-alarm video management system can determine the related information of the alarm event through the unique identifier, and the retrieval efficiency of the pre-alarm video can be improved.
Fig. 3 is a flowchart of a management method for pre-alarm video according to an embodiment of the present application, where the method is applicable to a case of managing pre-alarm video, and the method can be executed by a management apparatus for pre-alarm video according to an embodiment of the present application, and the apparatus can be implemented by software and/or hardware, and can be integrated in a management platform.
As shown in fig. 3, the method for managing pre-alarm videos includes:
and S310, receiving the alarm event sent by the network camera.
Wherein, the alarm event sent by the network camera can be received through the wide area network, and the related information of the alarm event can be determined. Here, the alarm event may be recorded, and prompt information may be sent to the user for the user to view and determine whether to view the pre-alarm video of the alarm event.
S320, receiving and storing the video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video.
The video stream data transmitted by the network camera can be received in real time according to the received alarm event, and the target pre-alarm video can be acquired from the pre-alarm video server automatically or under the condition of user selection.
The technical scheme that this application embodiment provided, through management platform execution, management platform passes through the wide area network with video server before warning and web camera and is connected, and the web camera passes through the LAN with video server before warning and is connected, the method includes: receiving an alarm event sent by a network camera; receiving and storing video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video. Through adopting the technical scheme that this application provided, can accomplish through video recording server before warning and save the video before warning to provide management platform when needs, thereby can solve the storage problem and the transmission problem of video before warning.
In order to make the technical scheme more clear to the technical personnel, the application also provides a specific implementation mode.
The three main equipment that this scheme relates to: the system comprises front-end network video acquisition equipment IPC, a pre-alarm video server NVR and a management platform VMS.
The typical networking is that the VMS is in a multilayer NAT of a wide area network, and the NVR and IPC are in a local area network, but the multilayer NAT is separated from the VMS, and of course, other networking can also apply the scheme of the present invention.
The work core steps of IPC are roughly divided into the following steps:
1. each IPC has a unique coded identity.
2. The method comprises the steps of collecting videos in real time and caching the latest videos in real time, wherein the caching time length is based on the time before the alarm set by the VMS, and the caching form can be a temporary file or other forms.
3. When an alarm event occurs, the cached pre-alarm video file is made into a unique number and sent to the NVR for storage (information such as the type of the alarm event, alarm time and the like can be added to the number), and meanwhile, the unique number is coded to the real-time video head and sent to the VMS for storage together with the real-time video.
The working core steps of the NVR are roughly divided into the following steps:
1. each NVR has a unique encoded identification.
2. And acquiring the unique code identifications of all current IPCs of the local area network for identifying the unique IPCs.
3. After receiving a pre-alarm video file of an IPC, the file is marked with an IPC unique coding identifier and stored, a NVR hard disk is generally large, and the pre-alarm video is small, so that the file can be stored for a long time.
The operation core steps of the VMS are roughly divided into the following steps:
1. and acquiring all accessed IPC and NVR unique coding identifications.
2. And acquiring all IPC unique coding identifications below the IPC from the NVR, and storing the IPC unique coding identifications for searching the corresponding relation between the IPC and the NVR.
3. When receiving an alarm event video of IPC, storing the video, analyzing the alarm event type and the pre-alarm video serial number of the video, obtaining the pre-alarm video from the corresponding NVR according to the pre-alarm video serial number, and storing the obtained pre-alarm video and the alarm event video together so as to continuously play the pre-alarm video and the alarm video during subsequent retrieval.
In addition, several existing implementations are provided, specifically as follows:
scheme 1: the VMS always receives IPC live of stream management and caches real-time video for a period of time, the scheme is also suitable for a local area network, and the defect 1 is that in the NAT wide area network environment, the bandwidth consumption of the VMS always receiving the stream is overlarge, and the video is easy to lose packets and lose the video; the disadvantage 2 is that all IPC live real-time streaming, VMS performance consumption is too large.
Scheme 2: the front end IPC caches a period of real-time video, and sends the real-time video to the VMS for storage while sending the cached pre-alarm video when an alarm occurs, and the scheme has the defect 1 that the possibility of losing the video due to uploading failure still exists; the disadvantage 2 is that only the latest pre-alarm video can be cached.
Scheme 3: the front end IPC caches the complete video, and the VMS backs up the alarm and records the video from the IPC after the alarm is finished, the scheme has the defects that 1, a storage medium is added to the front end IPC for storing the video, the storage time is limited, and the requirement on the front end IPC is high; the defect 2 is that all alarm videos need to be backed up, the bandwidth occupancy rate is high during backup, the timeliness of the alarm videos is not enough, and the latest videos may not be checked yet.
The disadvantages of the above three schemes are illustrated below with reference to examples.
Because the video recording time before the alarm is short (generally 0-2 minutes), and the VMS receives the alarm event and immediately goes to the NVR to obtain, the timeliness of storing the video before the alarm by the VMS is guaranteed. Examples are as follows:
the first embodiment is as follows: firstly, the premise of timeliness comparison is two conditions of network division normal and network interruption. When the IPC receives a shielding detection alarm, 30 seconds before the alarm, and ending after 20 minutes.
1. Timeliness of existing scheme 3 (backup of alarm video in IPC local):
when the network is normal: the IPC can simultaneously send the pre-alarm video and the alarm real-time video to the VMS, and 30S completes the pre-alarm video without considering network delay.
When the network is interrupted: the IPC firstly stores the alarm video (20 minutes +30S) in a local memory card, VMS downloads the alarm video after the network is recovered or the IPC actively pushes the alarm video, and 1830S is required to complete the pre-alarm video according to the downloading speed of 1 time.
2. In other schemes, when the network is normal, the pre-alarm video recording is completed when an alarm event is received, and when the network is interrupted, the pre-alarm video recording is lost, so that the contrast is avoided.
3. Timeliness of embodiments of the invention:
when the network is normal: the VMS receives the IPC real-time alarm video and analyzes the pre-alarm video code, the pre-alarm video server obtains the pre-alarm video (or the pre-alarm video server actively pushes the pre-alarm video to the VMS), and the 30S completes the pre-alarm video without considering network delay.
When the network is interrupted: the IPC can store the 30S pre-alarm video in the pre-alarm video server in real time and carry out numbering, the VMS is downloaded from the pre-alarm video server after the network is recovered, and the 30S pre-alarm video downloading is completed according to the 1-time downloading speed.
This is only one alarm video, and if many alarm videos are generated during the network interruption process, the timeliness of the pre-alarm video stored by the VMS will be worse and worse. It can be seen from the above that the timeliness of embodiments of the present invention is optimal.
If the wide area network is interrupted (the network between the VMS and the IPC) or suddenly becomes worse, the pre-alarm video is only stored in a delay way and is not lost. Examples are as follows:
example two: when the IPC receives a shielding detection alarm, 30S before the alarm, the 20 minutes are ended, and the network is interrupted for 30 minutes.
1. The pre-alarm video recording condition of the existing scheme 1(VMS pre-receiving stream cache IPC real-time video, alarm occurrence storage pre-alarm video): the pre-alarm video is lost during network outages.
2. The prior scheme 2(IPC caches pre-alarm video, and the real-time pre-alarm video to VMS when alarm occurs) has the following pre-alarm video condition: the pre-alarm video is lost during network outages.
3. The pre-alarm video recording condition of the existing scheme 3 (the alarm video is backed up locally in IPC):
the video before alarm is still stored during network interruption, but the capacity expansion of the IPC local memory card is inconvenient, and the flexibility of the storage period is poor.
The video recording before warning condition of the embodiment of the invention is as follows:
the video before alarm is still stored during network interruption, and the hard disk of the video before alarm server is expandable, so that the storage period is higher in flexibility.
It can be seen from the above that the pre-alarm video integrity of the embodiments of the present invention is optimal.
If the VMS wants to backup the pre-alarm video after the alarm event because of factors such as performance or network, the VMS can also backup the pre-alarm video at any time.
If the real-time alarm video cannot be received due to abnormity (VMS downtime, network interruption and the like), the VMS can still back up all the pre-alarm videos according to the unique coding identifiers of IPC and NVR after that, so that important event basis is ensured, and information such as alarm events, alarm time and the like can be analyzed from the unique coding identifiers.
The construction convenience is high, generally, in actual engineering, there are many IPC devices (dozens to hundreds of IPC devices) in a local area network, each IPC installation position is different, and general people cannot directly contact the IPC devices (the IPC devices can be contacted with tools), and the construction cost and the maintenance cost for increasing or expanding the capacity of the memory card far exceed the cost for increasing the pre-alarm video server in the local area network; in addition, if the storage space of the pre-alarm video is required to be expanded, the invention only needs to add a hard disk to the pre-alarm video server, and does not need to replace or add a new storage card on each IPC.
In conclusion, the scheme of the invention comprehensively expresses the most important indexes of bandwidth consumption, timeliness, video integrity, construction convenience and the like of the pre-alarm video.
By implementing the scheme, the effect of saving bandwidth and flow can be achieved; the video cannot be lost even if the VMS is down and before the alarm; the video before the alarm can be stored for a long time, and the VMS can also backup the video before the alarm after the alarm event. Meanwhile, the most important timeliness of the pre-alarm video is considered as much as possible. By adopting the pre-alarm video storage server, the installation of a storage card for each IPC is avoided, the construction cost is reduced, the capacity expansion of the hard disk of the pre-alarm video storage server can be conveniently carried out according to the actual condition, and the storage cycle requirement of the pre-alarm video is ensured.
Fig. 4 is a schematic structural diagram of a management apparatus for pre-alarm video recording according to an embodiment of the present application. The device is configured in a pre-alarm video server, and the pre-alarm video server is connected with the network camera through a local area network and is connected with the management platform through a wide area network. As shown in fig. 4, the apparatus for managing pre-alarm video includes:
the pre-alarm video storage module 410 is used for receiving and storing pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network;
and the target pre-alarm video transmission module 420 is configured to transmit the target pre-alarm video to the management platform through a wide area network if the trigger event for acquiring the target pre-alarm video is detected.
The technical scheme provided by the embodiment of the application is implemented through a video server before warning, the video server before warning is connected with a network camera through a local area network and is connected with a management platform through a wide area network, and the method comprises the following steps: receiving and storing a pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network; and if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network. Through adopting the technical scheme that this application provided, can accomplish through video recording server before warning and save the video before warning to provide management platform when needs, thereby can solve the storage problem and the transmission problem of video before warning.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method.
Fig. 5 is a schematic structural diagram of a management apparatus for pre-alarm video recording according to an embodiment of the present application. The device is configured on a network camera, the network camera is connected with a pre-alarm video server through a local area network and is connected with a management platform through a wide area network, and the pre-alarm video server is connected with the management platform through the wide area network. As shown in fig. 5, the apparatus for managing pre-alarm video includes:
a pre-alarm video determining module 510, configured to determine, if an alarm event is detected, video data of a preset time duration before the alarm event as a pre-alarm video;
the alarm event processing module 520 is configured to send the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to a management platform, and sending the video data after the alarm event to the management platform.
The technical scheme that this application embodiment provided carries out through the internet protocol camera, the internet protocol camera passes through the LAN with the video server before policing and is connected to pass through the WAN with the management platform and be connected, the video server before policing with the management platform passes through the WAN and connects, the method includes: if the alarm event is detected, determining the video data with preset time length before the alarm event as the pre-alarm video; sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to a management platform, and sending the video data after the alarm event to the management platform. Through adopting the technical scheme that this application provided, can accomplish through video recording server before warning and save the video before warning to provide management platform when needs, thereby can solve the storage problem and the transmission problem of video before warning.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method.
Fig. 6 is a schematic structural diagram of a management apparatus for pre-alarm video recording according to an embodiment of the present application. The device is configured on a management platform, the management platform is connected with the pre-alarm video server and the network camera through a wide area network, and the network camera is connected with the pre-alarm video server through a local area network. As shown in fig. 6, the apparatus for managing pre-alarm video recording includes:
an alarm event receiving module 610, configured to receive an alarm event sent by a network camera;
a target pre-alarm video acquisition module 620, configured to receive and store video data after an alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video.
The technical scheme that this application embodiment provided, through management platform execution, management platform passes through the wide area network with video server before warning and web camera and is connected, and the web camera passes through the LAN with video server before warning and is connected, the method includes: receiving an alarm event sent by a network camera; receiving and storing video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video. Through adopting the technical scheme that this application provided, can accomplish through video recording server before warning and save the video before warning to provide management platform when needs, thereby can solve the storage problem and the transmission problem of video before warning.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method.
Embodiments of the present application further provide a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method for managing pre-alarm videos, the method comprising:
receiving and storing a pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network;
and if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network.
Alternatively, the first and second electrodes may be,
if the alarm event is detected, determining the video data with preset time length before the alarm event as the pre-alarm video;
sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to the management platform, and sending the video data after the alarm event to the management platform.
Alternatively, the first and second electrodes may be,
receiving an alarm event sent by a network camera;
receiving and storing video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of storage devices or combinations thereof. In addition, the storage medium may be located in the computer system in which the program is executed, or may be located in a different second computer system connected to the computer system through a network (such as the internet). The second computer system may provide the program instructions to the computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application and containing computer-executable instructions is not limited to the management operation of the pre-alarm video, and may also perform related operations in the management method of the pre-alarm video provided in any embodiment of the present application.
The embodiment of the application provides electronic equipment, and the management device for the pre-alarm video provided by the embodiment of the application can be integrated in the electronic equipment. Fig. 7 is a structural schematic diagram of an electronic device according to an embodiment of the present application. As shown in fig. 7, the present embodiment provides an electronic device 700, which includes: one or more processors 720; storage 710 for storing one or more programs, which when executed by the one or more processors 720, cause the one or more processors 720 to implement the method for managing pre-alarm videos provided by this application, the method comprising:
receiving and storing a pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network;
and if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network.
Alternatively, the first and second electrodes may be,
if the alarm event is detected, determining the video data with preset time length before the alarm event as the pre-alarm video;
sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to the management platform, and sending the video data after the alarm event to the management platform.
Alternatively, the first and second electrodes may be,
receiving an alarm event sent by a network camera;
receiving and storing video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video.
Of course, those skilled in the art can understand that the processor 720 further implements the technical solution of the management method for pre-alarm videos provided in any embodiment of the present application.
The electronic device 700 shown in fig. 7 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 7, the electronic device 700 includes a processor 720, a storage 710, an input 730, and an output 740; the number of the processors 720 in the electronic device may be one or more, and one processor 720 is taken as an example in fig. 7; the processor 720, the storage device 710, the input device 730, and the output device 740 in the electronic apparatus may be connected by a bus or other means, and are exemplified by the bus 750 in fig. 7.
The storage device 710 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and module units, such as program instructions corresponding to the management method of pre-alarm videos in the embodiment of the present application.
The storage device 710 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the storage 710 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, storage 710 may further include memory located remotely from processor 720, which may be connected via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 730 may be used to receive input numbers, character information, or voice information, and to generate key signal inputs related to user settings and function control of the electronic apparatus. The output device 740 may include a display screen, speakers, etc.
The electronic equipment provided by the embodiment of the application can realize the effect of improving the signal-to-noise ratio and the contrast of the image obtained after fusion by performing brightness fusion on the brightness component of the visible light image and the brightness component of the infrared image, and can achieve the purpose of better retaining the edge information.
The management device, medium, and electronic device for pre-alarm video provided in the above embodiments may execute the management method for pre-alarm video provided in any embodiment of the present application, and have corresponding functional modules and beneficial effects for executing the method. For the technical details not described in detail in the above embodiments, reference may be made to a method for managing pre-alarm videos provided in any embodiment of the present application.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (12)
1. A management method of pre-alarm video is characterized in that the management method is executed by a pre-alarm video server, the pre-alarm video server is connected with a network camera through a local area network and is connected with a management platform through a wide area network, and the method comprises the following steps:
receiving and storing a pre-alarm video recorded by the network camera according to the alarm event; the pre-alarm video is acquired by a network camera and received through a local area network;
and if the trigger event for acquiring the target pre-alarm video is detected, transmitting the target pre-alarm video to the management platform through the wide area network.
2. The method of claim 1, wherein after receiving the pre-alarm video recorded by the webcam based on the alarm event, the method further comprises:
identifying a unique identifier of the pre-alarm video; wherein the unique identifier is generated by a web camera;
correspondingly, if a trigger event for acquiring the target pre-alarm video is detected, the target pre-alarm video is transmitted to the management platform through a wide area network, and the method comprises the following steps:
if a trigger event for acquiring the target pre-alarm video is detected, determining a unique identifier of the target pre-alarm video;
and determining the target pre-alarm video according to the comparison result of the unique identifier of the target pre-alarm video and the stored unique identifiers of all the pre-alarm videos, and transmitting the target pre-alarm video to the management platform through a wide area network.
3. The method of claim 1, wherein prior to receiving the pre-alarm video recorded by the webcam upon the alarm event, the method further comprises:
determining the identity code of a network camera in the current local area network;
and associating the identity code of the network camera with the identity code of the network camera, transmitting the association relation to the management platform, and performing association storage.
4. A management method of pre-alarm video is characterized in that the management method is executed by a network camera, the network camera is connected with a pre-alarm video server through a local area network and is connected with a management platform through a wide area network, the pre-alarm video server is connected with the management platform through the wide area network, and the method comprises the following steps:
if the alarm event is detected, determining the video data with preset time length before the alarm event as the pre-alarm video;
sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to a management platform, and sending the video data after the alarm event to the management platform.
5. The method of claim 4, wherein after determining the pre-alarm recording data as the pre-alarm recording data, the method further comprises:
adding a unique identifier to the pre-alarm video;
correspondingly, the alarm event is sent to the management platform, and the method comprises the following steps:
and sending the alarm event and the unique pre-alarm video identifier of the alarm event to a management platform so that the management platform can obtain the pre-alarm video from a pre-alarm video server according to the unique pre-alarm video identifier.
6. The method of claim 5, wherein the unique identifier comprises at least one of an alarm event type and an alarm event time.
7. A management method of pre-alarm video is characterized in that the management method is executed by a management platform, the management platform is connected with a pre-alarm video server and a network camera through a wide area network, the network camera is connected with the pre-alarm video server through a local area network, and the method comprises the following steps:
receiving an alarm event sent by a network camera;
receiving and storing video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video.
8. The utility model provides a management device of video recording before warning which characterized in that disposes in the video recording server before warning, the video recording server before warning passes through LAN with the network camera and passes through wide area network with the management platform and connect, the device includes:
the pre-alarm video storage module is used for receiving and storing pre-alarm videos recorded by the network camera according to the alarm events; the pre-alarm video is acquired by a network camera and received through a local area network;
and the target pre-alarm video transmission module is used for transmitting the target pre-alarm video to the management platform through a wide area network if the trigger event for acquiring the target pre-alarm video is detected.
9. A management device for pre-alarm video is characterized in that the management device is configured in a network camera, the network camera is connected with a pre-alarm video server through a local area network and is connected with a management platform through a wide area network, the pre-alarm video server is connected with the management platform through the wide area network, and the device comprises:
the pre-alarm video determining module is used for determining video data with preset time length before the alarm event as the pre-alarm video if the alarm event is detected;
the alarm event processing module is used for sending the pre-alarm video to a pre-alarm video server through a local area network for storage; and sending the alarm event to a management platform, and sending the video data after the alarm event to the management platform.
10. A management device for pre-alarm video is characterized in that the management device is configured on a management platform, the management platform is connected with a pre-alarm video server and a network camera through a wide area network, the network camera is connected with the pre-alarm video server through a local area network, and the device comprises:
the alarm event receiving module is used for receiving the alarm event sent by the network camera;
the target pre-alarm video acquisition module is used for receiving and storing video data after the alarm event according to the alarm event; and receiving the pre-alarm video server to determine and return the target pre-alarm video.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of managing pre-alarm videos according to any one of claims 1 to 3, claims 4 to 6, and claim 7.
12. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for managing pre-alarm videos according to any one of claims 1-3, 4-6 and 7 when executing the computer program.
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