CN112333015A - Media data storage method, device, system, electronic equipment and storage medium - Google Patents
Media data storage method, device, system, electronic equipment and storage medium Download PDFInfo
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- CN112333015A CN112333015A CN202011169489.7A CN202011169489A CN112333015A CN 112333015 A CN112333015 A CN 112333015A CN 202011169489 A CN202011169489 A CN 202011169489A CN 112333015 A CN112333015 A CN 112333015A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
- G06F11/1469—Backup restoration techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
Abstract
The invention provides a media data storage method, a device, a system, an electronic device and a storage medium, wherein the method comprises the following steps: receiving first signaling data sent by a central management service; the first signaling data comprises first identification information of a main storage service and second identification information of a standby storage service; the main storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services except the main storage service; sending the media data to a main storage service according to the first identification information; and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information. The invention can reduce the time delay of taking over the media data stream, and meanwhile, does not depend on the control of the central management service in the process of taking over the media data, thereby reducing the risk of single point failure.
Description
Technical Field
The invention relates to the field of video monitoring, in particular to a media data storage method, a device, a system, electronic equipment and a storage medium.
Background
Video monitoring is an important component of a safety precaution system, is visual, accurate and timely, has rich information content and is widely applied to many occasions, the video monitoring not only can monitor and prejudge dangerous events, but also can call videos to obtain evidence and solve cases after the events, and under the scenes, the storage of media data obtained by video monitoring is very important.
At present, in the related art, a central management service in a video monitoring system is used for storing and managing a large amount of media data acquired by a front-end device, and the central management service is responsible for data flow between the front-end device and the storage service.
Disclosure of Invention
In view of this, the present invention provides a media data storage method, apparatus, system, electronic device and storage medium, so as to reduce the takeover delay of media data and reduce the risk of single point failure.
The technical scheme of the invention is as follows:
in a first aspect, the present invention provides a media data storage method, applied to a first media data acquisition device; the first media data acquisition equipment is arranged in the media data storage system; the system comprises a plurality of media data acquisition devices, a central management service and a plurality of storage services with a storage function, wherein the first media data acquisition device is one of the plurality of media data acquisition devices; the method comprises the following steps: receiving first signaling data sent by the central management service; the first signaling data comprises first identification information of a main storage service and second identification information of a standby storage service; the primary storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service; sending media data to the main storage service according to the first identification information; and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
In a second aspect, the present invention provides a media data storage method, which is applied to a central management service; the central management service is arranged in a media data storage system, the system also comprises a plurality of media data acquisition devices and a plurality of storage services with storage functions, and the method comprises the following steps: receiving a storage request of at least one first media data acquisition device, so that a central management service distributes a main storage service and a standby storage service for the first media data acquisition device; the primary storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service; the first media data acquisition device is at least one of the plurality of media data acquisition devices; and sending first signaling data to the first media data acquisition equipment so that the first media data acquisition equipment sends media data to the main storage service according to first identification information in the first signaling data, and when detecting that the main storage service is in a fault state, sending the media data to the standby storage service according to second identification information in the first signaling data.
In a third aspect, the present invention provides a media data storage device disposed in a media data storage system; the system comprises a central management service and a plurality of storage services with storage functions, and comprises a receiving module and a sending module; the receiving module is used for receiving first signaling data sent by the central management service; the first signaling data comprises first identification information of a main storage service and second identification information of a standby storage service; the primary storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service; the sending module is used for sending the media data to the main storage service according to the first identification information; and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
In a fourth aspect, the present invention provides a media data storage device disposed in a media data storage system; the system also comprises a plurality of media data acquisition devices and a plurality of storage services with storage functions, and comprises: the device comprises a receiving module and a sending module; the receiving module is used for receiving a storage request of the first media data acquisition equipment, wherein the storage request is used for distributing main storage service and standby storage service for the first media data acquisition equipment; the primary storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service; the first media data acquisition device is at least one of the plurality of media data acquisition devices; the sending module is configured to send first signaling data to the first media data collection device, so that the first media data collection device sends media data to the primary storage service according to first identification information in the first signaling data, and when it is detected that the primary storage service is in a failure state, the media data is sent to the backup storage service according to second identification information in the first signaling data.
In a fifth aspect, the present invention provides a media data storage system comprising: the system comprises a central management service, a plurality of media data acquisition devices and a plurality of storage services with storage functions; the central management service is used for receiving a storage request of a first media data acquisition device, wherein the storage request is used for distributing a main storage service and a standby storage service for the first media data acquisition device; the primary storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service; the first media data acquisition device is at least one of the plurality of media data acquisition devices; first signaling data are sent to the first media data acquisition equipment, so that the first media data acquisition equipment sends media data to the main storage service according to first identification information in the first signaling data, and when the main storage service is detected to be in a fault state, the media data are sent to the standby storage service according to second identification information in the first signaling data; the media data acquisition equipment is used for receiving first signaling data sent by the central management service; sending media data to the main storage service according to the first identification information; and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
In a sixth aspect, the present invention also provides an electronic device, including a processor and a memory, where the memory stores machine executable instructions capable of being executed by the processor, and the processor can execute the machine executable instructions to implement the media data storage method of the first aspect or the media data storage method of the second aspect.
In a seventh aspect, the present invention also provides a storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the media data storage method of the first aspect or the media data storage method of the second aspect.
The invention provides a media data storage method, a device, a system, an electronic device and a storage medium, wherein the method comprises the following steps: when the media data acquisition equipment receives signaling data sent by a central management service, the media data are sent to a main storage service for storage according to first identification information of the main storage service in the signaling data, and once the main storage service fails, the media data are sent to a standby storage service for storage according to second identification information The central management service reestablishes the signaling interaction time of the transmission channel between the at least one first media data acquisition device and the standby storage service, and meanwhile, the central management service does not rely on the control of the central management service in the media data taking-over process, so that the risk of single-point failure is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a video data monitoring system;
fig. 2 is a schematic flow chart of a media data storage method according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of another media data storage method according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of another media data storage method provided by the embodiment of the invention;
FIG. 5 is a schematic flow chart of another media data storage method according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart of another media data storage method according to an embodiment of the present invention;
FIG. 7 is a functional block diagram of a media data storage device according to an embodiment of the present invention;
FIG. 8 is a functional block diagram of another media data storage device according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a media data storage system according to an embodiment of the present invention;
fig. 10 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Fig. 1 is a schematic diagram of an architecture of a video data monitoring system, referring to fig. 1, the architecture includes: a central management service 11, a plurality of storage services 12, and a plurality of webcams IPC (IPCamera).
The central management service 11 is used for managing the IPC13 and the storage service 12 and implementing control signaling for establishing and releasing the video stream between the IPC13 and the storage service 12.
The IPC13 is used to collect a large amount of video data and send the collected video data to the storage service 12 for storage under the scheduling of the central management service 10. IPC13 may be, but is not limited to, a webcam IPC (IPCamera), a surveillance camera, and the like.
In some possible embodiments, the central management service 11 may be software or hardware installed in a server with a control function, and the storage service 12 may be software or hardware installed in a device with a control function, but the central management service 11 and the storage service 12 may also be installed in the same device, and the device may have a control function and a storage function.
In the related art, in the process of implementing video stream transmission between the IPC13 and the storage service 12 through the central management service 11, the central management service 11 may detect an equipment failure of the storage service through a keep-alive mechanism, and when a failure occurs in a certain storage service 12, for a plurality of IPCs 13 corresponding to the storage service, implement storage takeover processing of video streams of each IPC13 one by one, that is, select another storage service 12 as a takeover object, and implement video stream establishment between the IPC13 and the takeover service through signaling again, thereby implementing storage service takeover of video streams.
For example, continuing with fig. 1, taking IPCs 1-m and storage service 1 as an example, storage service 1 is responsible for receiving video streams sent from IPCs 1-m, when a failure occurs in a device where storage service 1 is located, for video streams of IPCs 1-m, the central management service determines a storage service for each IPC to take over the video streams on the IPCs, and in each taking over process, the central management service sends signaling data to the IPCs and the taking over devices to indicate that the two parties establish a video stream transmission channel, so that the video streams of IPCs 1-m can be stored in other storages.
The inventor finds that the video stream storage mode has the following defects in the process of researching the related technology:
first, the process of detecting a service failure by the central management service through the keep-alive mechanism is time-consuming, and in some possible embodiments, the central management server considers a certain storage service to be offline if it does not receive keep-alive messages of the service N times in succession. For example, assuming that the one-time keep-alive time is 5 seconds, and N is 3, the time for detecting the service offline is: 5 seconds 3 times 15 seconds. It can be seen that the time for the central management service to detect the failure is long, and once a certain storage service fails, the video data transmitted to the failed storage service may be lost.
Secondly, the time for the central management service to establish the video streams between the IPCs and the takeover devices one by one through control signaling (for example, SIP control signaling defined by the GB/T28181 protocol) increases significantly with the increase of the number of IPCs, for example, a single storage service device supports 600 IPC video streams in total, and 7-8 seconds are required to complete the signaling interaction flow of all IPCs. If other services need to be processed in the central management service in the period of time, it may take more than 15 seconds at most to complete the process. In the process, the phenomenon of packet loss of the video data to be taken over easily occurs.
Thirdly, the time for establishing a video stream transmission connection (e.g. socket connection) between each IPC and the storage service on the takeover device also increases significantly with the rapid increase of the number of IPCs, for example, a certain takeover device needs to take over 150 paths of video streams on the IPCs, which is generally completed within 3 seconds, but when the taken-over IPCs increase significantly, the takeover time is long.
Therefore, the inventor finds that the overall delay of the video stream takeover process in the above technical scheme is relatively long, which may cause the phenomenon of data loss of the video stream on the IPC; moreover, the takeover process depends on the central management service, and if the central management service is abnormal, all IPCs on the failed storage service device cannot complete takeover.
In order to solve the above technical problem, the inventor provides a media data storage method, where the media data may be video data, game data, voice data, and the like, and the method can effectively reduce the delay of taking over service to access a video stream after a storage service fails. Meanwhile, the whole takeover process does not depend on the central management service any more, so that the signaling processing delay of the service is reduced, and meanwhile, the central fault point of the takeover process is reduced.
Before describing the media data storage method in the embodiment of the present invention, first, an implementation manner of multiple storage services in the embodiment of the present invention is described, and it is considered that each storage service may correspond to one device, in the embodiment of the present invention, in order to implement load balancing of all online storage service devices, a peak video stream access path number of the device is reduced to a maximum access path number in a normal case, in a possible implementation manner, multiple storage services may form a cluster, and a video stream access capability of a certain path number may be reserved for a storage service on each device in a case where there is no node failure. That is, the cluster as a whole reserves the normal maximum number of access paths for one device. And the reserved path number of the single equipment node is equal to the actual maximum access path number (1/N-1) under the normal condition.
For example, there are 5 devices in the cluster, each device is deployed with storage services, where the peak access capability of each device is 750 routes of media data, and the maximum actual access of the device is 600 routes under normal conditions, then it can be known from the above formula that each device can reserve 150 routes, and the number of routes reserved by all devices is exactly the maximum actual access route of one device, so that it can be ensured that when one storage service device fails, other storage service devices can commonly take over the media data on the failed device, and a data interruption phenomenon is avoided.
Based on the implementation of the storage service, in order to understand the media data storage method, please refer to fig. 2, where fig. 2 is a schematic flow chart of a media data storage method according to an embodiment of the present invention, the method may include a first media data acquisition device, and the first media data acquisition device may be any one of a plurality of media data acquisition devices shown in fig. 1; the method comprises the following steps:
s101, receiving first signaling data sent by a center management service.
In a possible implementation manner, it may be understood that the first identification information in the first signaling data sent by the central management service may include an IP address/port of the primary storage service for receiving the media data stream, and the second identification information in the first signaling data may include an IP address/port of the backup storage service for receiving the media data stream, and the IP address/port corresponding to the backup storage service has a backup identifier, so as to instruct the first media data collection device not to send data to the backup storage service in the process of sending the media video stream to the primary storage service.
In some possible embodiments, the primary storage service is one of a plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service.
And S104, sending the media data to a main storage service according to the first identification information.
It is to be understood that, for the backup storage service, the first media data collection device does not transmit the media data stream according to the backup identifier in the first signaling data.
And S105, when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
It is understood that the first media data collection device may perform header stripping, buffering, frame splicing, storing, and the like on the media data packet after sending the media data packet, which may be RTP video stream data, game data, voice data, and the like, and the standby storage service may perform header stripping, buffering, frame splicing, storing, and the like on the media data packet after receiving the media data packet.
Through the mode, after a storage service device receiving the media data stream fails, the time consumed for switching all the media data streams carried by the storage service device to the standby storage service device can be optimized from tens of seconds to several seconds, the time delay of cross-device takeover of the first media data acquisition device is reduced, and the risk of data packet loss is reduced.
For convenience of understanding, please continue to refer to fig. 1, taking video data storage as an example, assuming that the main storage service of IPC1 is storage service 1 and the standby storage service is storage service 2, when the storage service 1 is normal, data of IPC1 is sent to the storage service 1 for storage, and when the storage service 1 fails, the IPC1 can directly send the video stream to the storage service 2 without signaling control between the IPC1 and the storage service 2 through a central management service at this time, which can greatly reduce the takeover delay in the conventional scheme and reduce the risk of data packet loss.
Based on the above description, it can be known that, in the media data storage method provided by the present application, when a media data acquisition device receives signaling data sent by a central management service, media data can be sent to a main storage service for storage according to first identification information of the main storage service in the signaling data, and once the main storage service fails, media data is sent to a backup storage service for storage according to second identification information, and in this process, the difference from the prior art is that, after a storage service that is docked with the media data acquisition device fails, it is necessary to determine to take over other storage services of the media data, and then it is necessary to control a video stream connection to be established between a media acquisition terminal and other storage services through the signaling data, and after a storage service that is docked with the media data acquisition device fails in the present application, the media data acquisition equipment directly sends the media data to the standby storage service, so that the keep-alive overtime detection time between the central management service and the storage service is saved, the signaling interaction time of the central management service for reestablishing the transmission channel between the first media data acquisition equipment and the standby storage service is saved, and meanwhile, the media data taking-over process is independent of the control of the central management service, so that the risk of single-point faults is reduced.
Optionally, in order to obtain the main storage service information and the backup storage service information corresponding to each media data collection device, the present invention further provides a possible implementation manner, referring to fig. 3, fig. 3 provides a schematic flowchart of another media data storage method for an embodiment of the present invention, that is, before step S101, the method may further include:
s100, sending a storage request to a central management service so that the central management service distributes a main storage service and a standby storage service for the media data acquisition equipment.
It can be understood that, when the first media data acquisition device currently has a need for storing media data, a storage request is sent to the central management service, and when the central management service receives the storage request of the first media data acquisition device, the central management service may allocate a primary storage service and a standby storage service to the first media data acquisition device.
In a possible implementation manner, the central management service may allocate a main storage service to the first media data acquisition device according to a load balancing principle, and then allocate a spare storage service device according to a principle of evenly scattering the total number of data paths accessed by each service to the service, so that load balancing of all online storage services can be achieved, and the peak number of media data stream access paths of the storage service is reduced to the maximum number of access paths under a normal condition.
For example, continuing to take an example that 5 devices (which may be understood as one storage service corresponding to each device) form a cluster, and each device normally accesses 600 media data at maximum as an example: for 600 paths of IPC access of the device 1, the IPC access is uniformly distributed according to the number of the rest devices of the cluster, namely 150 paths of devices 2 to 5 are respectively distributed. By analogy, 600 video streams of the devices 2 to 5 are also uniformly distributed to the other 4 devices according to 150 channels of each device. That is, when the device 1 fails, among 600 video streams on the device 1, the 1 st to 150 th video streams are taken over by the device 2, the 151 th to 300 th video streams are taken over by the device 3, the 301 th to 450 th video streams are taken over by the device 4, and the 451 th to 600 th video streams are taken over by the device 5, so that load balancing of all online storage services can be realized, and the peak media data stream access path number of the storage services is reduced to the maximum access path number under normal conditions.
Optionally, in order to send the media data to the primary storage service or the backup storage service for storage, the first media data collecting device needs to establish a transmission channel for transmitting the media data between the primary storage service and the backup storage service in advance, and a possible implementation manner is given below on the basis of fig. 1, referring to fig. 4, where fig. 4 is a schematic flow chart of another media data storage method provided by an embodiment of the present invention, that is, before step S104, the method may further include:
s102, establishing a main transmission channel linked with the main storage service according to the first identification information.
S103, establishing a standby transmission channel linked with the standby storage service according to the second identification information.
It can be understood that, since the first identification information and the second identification information respectively have the stream receiving IP addresses and ports of the main storage service and the backup storage service, after the first media data acquisition device obtains the stream receiving IP addresses and ports of the main storage service and the backup storage service, the first media data acquisition device can respectively establish socket connection for transmitting media streams with the stream receiving IP addresses and ports of the main storage device and the backup storage device, and generate a main transmission channel and a backup transmission channel. The main transmission channel is used for the first media data acquisition equipment to transmit media data to the main storage service; the standby transmission channel is used for the first media data acquisition equipment to transmit media data to the standby storage service.
In some possible embodiments, the mode in which the main storage service receives the media data stream through the main transmission channel may be any one of a stream receiving mode of TCP, UDP, and the like, and similarly, the mode in which the backup storage service receives the media data stream through the backup transmission channel may also be any one of the above modes, when the first media data acquisition device transmits the media data to the main storage service, the backup transmission channel does not transmit the media data, and if the receiving mode of the backup storage service is the TCP stream receiving mode, the first media data acquisition device may maintain the connection of the backup transmission channel through a long connection keep-alive mechanism of the TCP itself between the first media data acquisition device and the backup device;
it should be noted that there is no execution sequence between the steps S102 and S103, and in an implementation manner, after the step S102 is executed to establish the main transmission channel first, then the step S103 is executed to establish the standby transmission channel, or after the step S103 is executed to establish the standby transmission channel first, then the step S102 is executed to establish the main transmission channel, or the steps S102 and S103 are executed simultaneously.
Optionally, in order to detect whether the primary storage service fails during the process of sending data, the following provides a possible implementation manner, that is: and starting a link detection mechanism to detect the channel state of the main transmission channel, wherein the link detection mechanism can be, but is not limited to, RTCP detection, TCP detection and the like.
In a possible implementation manner, the IPC continuously performs detection whether the main storage service is normal according to the link detection mechanism during the video stream transmission process. If the transmission channel is detected to have a fault (such as continuous failure of streaming and abnormal disconnection of TCP connection), the IPC switches the video stream data to the standby transmission channel for transmission, and meanwhile, the main transmission channel continues to maintain after stopping transmitting the data.
Optionally, when the first media data collection device has a requirement of suspending storage, in order to enable the first media data to no longer send media data to the peer end, a possible implementation manner is given below, referring to fig. 5, where fig. 5 is a schematic flow chart of another media data storage method provided by an embodiment of the present invention, and the method further includes:
s106, sending a storage suspension request to the central management service so that the central management service sends a channel closing instruction.
And S107, receiving a channel closing instruction sent by the central management service.
S108, responding to the channel closing instruction, and closing the transmission channel for transmitting the media data.
It can be understood that, the first media data acquisition device sends a storage suspension request to the central management service, and the central management service may notify, through a signaling, the first media data acquisition device and the main storage service device or the backup storage service device to close a channel according to media data stream information of the first media data acquisition device recorded by the central management service, and the first media data acquisition device closes a transmission channel between the first media data acquisition device and the main storage service device or the backup storage device according to an actual connection status of the first media data acquisition device.
For example, if the first media data collection device is currently performing media data transmission with the backup storage service, the backup transmission channel is closed, and if the first media data collection device is currently performing media data transmission with the main storage service, the main transmission channel is closed.
Optionally, in order to ensure the integrity of the media data (e.g., video stream data) sent by the first media data collection device, the first media data collection device may send a mandatory I-frame request to the encoding module before sending the media data to the backup storage service, so as to ensure the integrity of a video stream GOP on the backup transmission channel.
Based on the embodiment of the media data storage method, the invention also provides a media data storage method, which can be applied to the central management service of the media data storage system; the system further includes a plurality of media data acquisition devices and a plurality of storage services having a storage function, referring to fig. 6, fig. 6 is another media data storage method provided by an embodiment of the present invention, and the method includes:
s201, receiving a storage request of a first media data acquisition device, so that a central management service distributes a main storage service and a standby storage service for the first media data acquisition device.
It is to be understood that the first media data acquisition device described above is at least one of a plurality of media data acquisition devices in the media data storage system; the main storage service is one of a plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service.
S202, sending first signaling data to first media data acquisition equipment, so that the first media data acquisition equipment sends the media data to the main storage service according to first identification information in the first signaling data, and when detecting that the main storage service is in a failure state, sending the media data to a standby storage service according to second identification information in the first signaling data.
It can be understood that the first identification information in the first signaling data sent by the central management service may include an IP address/port of the primary storage service for receiving the media data stream, and the second identification information in the first signaling data may include an IP address/port of the backup storage service for receiving the media data stream, and the IP address/port corresponding to the backup storage service has a backup identifier, so as to instruct the first media data collection device not to send data to the backup storage service in the process of sending the media video stream to the primary storage service.
Optionally, after sending the first signaling data to the first media data acquisition device, in order to enable the main storage service or the backup storage service to obtain information of the first data acquisition device sending the media data before receiving the media data, so as to establish a transmission channel for transmitting the media data, the central management service may also send second signaling data to the main storage service and the backup storage service, respectively. The second signaling data may at least include information such as an IP address/port, a device code, and the like of the media data stream sent by the first media data collection device.
It can be understood that, after the first media data collection device obtains the IP address/port of the main storage service for receiving the media data stream and the IP address/port of the backup storage service for receiving the media data stream, the main storage service and the backup storage service obtain the IP address/port of the first media data collection device for sending the media data stream, the first media data collection device may establish a main transmission channel and a backup transmission channel for transmitting media data with the main storage service and the backup storage service, respectively.
Optionally, after performing signaling interaction with the first media data collection device, the main storage service, and the main storage service, respectively, the central management service is further configured to maintain information of a media data stream corresponding to the first media data collection device, where the media data stream information may include, but is not limited to: the device code of the first media data acquisition device, the IP address/port used for sending the media data stream, the IP address/port used for receiving the media data stream by the main storage service, the channel identifier of the main transmission channel, the IP address/port used for receiving the media data stream by the standby storage service, the standby identifier of the IP address/port, and the channel identifier of the standby transmission channel, wherein the main channel identifier is in an active state, and the standby channel identifier is in an idle state.
Optionally, before the main storage service fails, the main transmission channel is configured to transmit media data, where the main transmission channel is identified as an active state, and the channel of the standby transmission channel is identified as an idle state, and when the main storage service fails, the media data is switched to the standby transmission channel for transmission, so that, in order to synchronize data transmission information by the central management service, a possible implementation manner is given below:
and when third signaling data sent by the standby storage service is received, setting the standby transmission channel identifier in a use state, and setting the main transmission channel identifier in an idle state.
In some possible embodiments, after receiving the media data, the backup storage service may adjust an interface (e.g., a restful interface) provided by the central management service to send third signaling data to the central management service, where the third signaling data may include a device code of the first media data acquisition device and an identifier of switching between the master channel and the backup channel, and at this time, after receiving the third signaling data, the central management service may set the backup transmission channel identifier in a use state and set the master transmission channel identifier in an idle state.
In some possible embodiments, if the central management service is normal, after receiving the third signaling data, setting the standby channel identifier of the first media data collection device to be in the active state, and setting the active channel identifier to be in the state, and then returning success in the interface response.
In other possible embodiments, if the central management service is abnormal, the interface response of the central management service returns a failure, and after receiving the failure response, the backup storage service records that the third signaling data is not successfully sent, and sends the third signaling data to the central management service again.
Optionally, when the failed primary storage service is recovered to be normal, rejoining the cluster, in order to implement seamless switching of the media data on the first media data acquisition device to the primary storage service, a possible implementation manner is given below:
receiving registration information sent by a main storage service; the registration information comprises the device code of the main storage device;
inquiring at least one first media data acquisition device corresponding to the main storage service and a standby storage service of the first media data acquisition device according to the device code;
the first media data collection device sends the media data to the main storage service by sending signaling data to the main storage service, the first media data collection device, and the backup storage service.
In some possible embodiments, the detailed implementation process of the above implementation may be as follows:
first, the central management service first calls an interface (such as a restful interface) of the primary storage service, and sends a stream sending IP address/port of at least one first media data acquisition device corresponding to the primary storage service and a stream receiving IP address/port of the primary storage service to the primary storage service. So that the main storage service and the first media data acquisition equipment perform socket creation, establish a main transmission channel, wait for receiving a media data stream and then return success to the central management service;
the central management service then signals the first media data collection device to cause the first media data collection device to switch the media data stream back to the primary transmission channel with the primary storage service. It will be appreciated that no data is lost since the primary storage service has completed preparation to receive the media data stream;
finally, the central management service calls a device interface (such as a restful interface) of the standby storage service corresponding to the first media data acquisition device, and signals that the standby storage service does not accept the media data stream.
After all the processes are successfully processed, the main transmission channel identifier in the media data stream information of the first media data acquisition device maintained by the central management service is updated to be in use, and the main transmission channel identifier is updated to be idle.
Through the processing, the media data stream of each path of first media data acquisition equipment is restored to the original main/standby mode, so that the redundancy switching protection capability is achieved.
In order to implement the steps in the foregoing embodiments to achieve the corresponding technical effects, an implementation manner of a media data storage device is given below, referring to fig. 7, fig. 7 is a functional block diagram of a media data storage device according to an embodiment of the present invention, the device 20 may be disposed in a media data storage system, the system further includes a central management service and a plurality of storage services having storage functions, and the device includes a receiving module 201 and a sending module 202.
A receiving module 201, configured to receive first signaling data sent by a central management service; the first signaling data comprises first identification information of a main storage service and second identification information of a standby storage service; the main storage service is one of a plurality of storage services; the standby storage service is one of the plurality of storage services except the main storage service;
a sending module 202, configured to send the media data to a primary storage service according to the first identification information; and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
It is understood that the receiving module 201 and the sending module 202 may be used to perform the steps S101, S104, S105 to achieve the corresponding technical effect.
Optionally, the sending module 202 is further configured to send a storage request to the central management service, so that the central management service allocates the primary storage service and the backup storage service to the first media data collection apparatus.
Optionally, the media data storage device 20 further comprises: the establishing module is used for establishing a main transmission channel linked with the main storage service according to the first identification information; the main transmission channel is used for transmitting the media data to the main storage service; establishing a standby transmission channel linked with the standby storage service according to the second identification information; the backup transport channel is used to transport media data to the backup storage service.
It is to be understood that the setup module may be used to perform steps S102, S103 to achieve a corresponding technical effect.
Optionally, the sending module 202 is further configured to send a storage suspension request to a central management service, so that the central management service sends a channel closing instruction; the receiving module 201 is further configured to receive the channel closing instruction sent by the central management service; and closing the transmission channel for transmitting the media data in response to the channel closing instruction.
Optionally, the media data storage device 20 further comprises: and the detection module is used for detecting the channel state of the main transmission channel through a link detection mechanism.
In order to implement the steps in the foregoing embodiments to achieve the corresponding technical effects, an implementation manner of a media data storage device is further provided below, referring to fig. 8, fig. 8 is a functional block diagram of another media data storage device according to an embodiment of the present invention, where the device 30 may be disposed in a media data storage system, and the system further includes a plurality of media data acquisition devices and a plurality of storage services having a storage function, including: a receiving module 301 and a transmitting module 302;
a receiving module 301, configured to receive a storage request of a first media data acquisition device, where the storage request is used to allocate a primary storage service and a backup storage service to the first media data acquisition device; the main storage service is one of a plurality of storage services; the standby storage service is one of the plurality of storage services except the main storage service; the first media data acquisition device is at least one of a plurality of media data acquisition devices;
a sending module 302, configured to send the first signaling data to the first media data collecting device, so that the first media data collecting device sends the media data to the primary storage service according to the first identification information in the first signaling data, and when it is detected that the primary storage service is in a failure state, sends the media data to the backup storage service according to the second identification information in the first signaling data.
It is understood that the receiving module 301 and the sending module 302 can be used to execute the steps S201, S202 to achieve the corresponding technical effect.
Optionally, the sending module 302 is further configured to send second signaling data to the main storage service and the backup storage service, respectively, so that the main storage service sends and establishes a main transmission channel with the first media data acquisition device according to third identification information of the first media data acquisition device in the second signaling data, and the backup storage service establishes a backup transmission channel with the first media data acquisition device according to the third identification information; the main transmission channel is used for transmitting the media data to the main storage service; the backup transport channel is used to transport media data to the backup storage service.
Optionally, the central management service maintains media data stream information of the first media data acquisition device; the media data stream information comprises a main transmission channel identifier and a standby transmission channel identifier; the receiving module 301 is further configured to set the standby transmission channel identifier in a use state and set the main transmission channel identifier in an idle state when receiving the third signaling data sent by the standby storage service. The sending module 302 is further configured to send a success response to the backup storage service.
An embodiment of the present invention further provides a media data storage system, referring to fig. 9, where fig. 9 is a schematic structural diagram of a media data storage system according to an embodiment of the present invention, and the system 40 includes: a central management service 41, a plurality of media data acquisition devices 42 and a plurality of storage services 43 having a storage function.
A central management service 41 for receiving a storage request of the media data collection device 44; the storage request is used for instructing the central management service 41 to allocate a main storage service and a standby storage service for the media data acquisition device 42; the main storage service is one of a plurality of storage services; the backup storage service is one of the plurality of storage services 43 other than the primary storage service; first signaling data sent to media data collection device 42; the first signaling data comprises first identification information of a main storage service and second identification information of a standby storage service;
a media data collecting device 42, configured to receive first signaling data sent by the central management service 41; sending the media data to a main storage service according to the first identification information; and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
An embodiment of the present invention further provides an electronic device, as shown in fig. 10, and fig. 10 is a block diagram of the electronic device according to the embodiment of the present invention. The electronic device 50 comprises a communication interface 501, a processor 502 and a memory 503. The processor 502, memory 503 and communication interface 501 are electrically connected to each other, directly or indirectly, to enable the transfer or interaction of data. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The memory 503 may be used for storing software programs and modules, such as program instructions/modules corresponding to the media data storage method provided by the embodiment of the present invention, and the processor 502 executes various functional applications and data processing by executing the software programs and modules stored in the memory 503. The communication interface 501 may be used for communicating signaling or data with other node devices. The electronic device 50 may have a plurality of communication interfaces 501 in the present invention.
The memory 503 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a programmable read-only memory (PROM), an erasable read-only memory (EPROM), an electrically erasable read-only memory (EEPROM), and the like.
The processor 502 may be an integrated circuit chip having signal processing capabilities. The processor may be a general-purpose processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc.
An embodiment of the present invention provides a storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements a media data storage method as in any one of the foregoing embodiments. The computer readable storage medium may be, but is not limited to, various media that can store program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a PROM, an EPROM, an EEPROM, a magnetic or optical disk, etc.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (13)
1. A media data storage method is characterized in that the method is applied to a first media data acquisition device; the first media data acquisition equipment is arranged in the media data storage system; the system comprises a plurality of media data acquisition devices, a central management service and a plurality of storage services with a storage function, wherein the first media data acquisition device is one of the plurality of media data acquisition devices; the method comprises the following steps:
receiving first signaling data sent by the central management service; the first signaling data comprises first identification information of a main storage service and second identification information of a standby storage service; the primary storage service is one of a plurality of the storage services; the backup storage service is one of the plurality of storage services other than the primary storage service;
sending media data to the main storage service according to the first identification information;
and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
2. The media data storage method according to claim 1, further comprising, before acquiring the first signaling data sent by the central management service:
and sending a storage request to the central management service so that the central management service allocates the main storage service and the standby storage service to the first media data acquisition equipment.
3. The media data storage method according to claim 1, before sending media data to the primary storage service according to the identification information of the primary storage service, further comprising:
establishing a main transmission channel linked with the main storage service according to the first identification information; the main transmission channel is used for transmitting the media data to the main storage service;
establishing a standby transmission channel linked with the standby storage service according to the second identification information; the backup transmission channel is used for transmitting the media data to a backup storage service.
4. The media data storage method according to claim 3, further comprising:
sending a storage suspension request to the central management service so that the central management service sends a channel closing instruction;
receiving the channel closing instruction sent by the central management service;
and closing the transmission channel for transmitting the media data in response to the channel closing instruction.
5. The media data storage method according to claim 3, further comprising, after sending media data to the primary storage service according to the first identification information:
and detecting the channel state of the main transmission channel through a link detection mechanism.
6. A media data storage method is applied to a central management service; the central management service is arranged in a media data storage system, the system also comprises a plurality of media data acquisition devices and a plurality of storage services with storage functions, and the method comprises the following steps:
receiving a storage request of a first media data acquisition device, so that a central management service distributes a main storage service and a standby storage service to the first media data acquisition device; the primary storage service is one of a plurality of the storage services; the backup storage service is one of the plurality of storage services other than the primary storage service; the first media data acquisition device is at least one of the plurality of media data acquisition devices;
and sending first signaling data to the first media data acquisition equipment so that the first media data acquisition equipment sends media data to the main storage service according to first identification information in the first signaling data, and when detecting that the main storage service is in a fault state, sending the media data to the standby storage service according to second identification information in the first signaling data.
7. The media data storage method according to claim 6, further comprising:
respectively sending second signaling data to the main storage service and the standby storage service, so that the main storage service establishes a main transmission channel with the first media data acquisition equipment according to third identification information of the first media data acquisition equipment in the second signaling data, and the standby storage service establishes a standby transmission channel with the first media data acquisition equipment according to the third identification information; the main transmission channel is used for transmitting the media data to the main storage service; the backup transmission channel is used for transmitting the media data to a backup storage service.
8. The media data storage method according to claim 7, wherein the central management service maintains media data stream information of the first media data collection device; the media data stream information comprises a main transmission channel identifier and a standby transmission channel identifier; further comprising:
when third signaling data sent by the standby storage service is received, setting the standby transmission channel identifier in a use state, and setting the main transmission channel identifier in an idle state;
sending a success response to the backup storage service.
9. A media data storage device is characterized in that the media data storage device is arranged in a media data storage system; the system comprises a central management service and a plurality of storage services with storage functions, and comprises a receiving module and a sending module;
the receiving module is used for receiving first signaling data sent by the central management service; the first signaling data comprises first identification information of a main storage service and second identification information of a standby storage service; the primary storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service;
the sending module is used for sending the media data to the main storage service according to the first identification information; and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
10. A media data storage device is characterized in that the device is arranged in a media data storage system; the system also comprises a plurality of media data acquisition devices and a plurality of storage services with storage functions, and comprises: the device comprises a receiving module and a sending module;
the receiving module is used for receiving a storage request of the first media data acquisition equipment, wherein the storage request is used for distributing main storage service and standby storage service for the first media data acquisition equipment; the primary storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service; the first media data acquisition device is at least one of the plurality of media data acquisition devices;
the sending module is configured to send first signaling data to the first media data collection device, so that the first media data collection device sends media data to the primary storage service according to first identification information in the first signaling data, and when it is detected that the primary storage service is in a failure state, the media data is sent to the backup storage service according to second identification information in the first signaling data.
11. A media data storage system, comprising: the system comprises a central management service, a plurality of media data acquisition devices and a plurality of storage services with storage functions;
the central management service is used for receiving a storage request of a first media data acquisition device, wherein the storage request is used for distributing a main storage service and a standby storage service for the first media data acquisition device; the primary storage service is one of the plurality of storage services; the backup storage service is one of the plurality of storage services other than the primary storage service; the first media data acquisition device is at least one of the plurality of media data acquisition devices;
the center management service is used for sending first signaling data to the first media data acquisition equipment, wherein the first signaling data comprises first identification information and second identification information; the first signaling data comprises first identification information of a main storage service and second identification information of a standby storage service;
the media data acquisition equipment is used for receiving first signaling data sent by the central management service; sending media data to the main storage service according to the first identification information; and when the primary storage service is detected to be in a failure state, sending the media data to the standby storage service according to the second identification information.
12. An electronic device comprising a processor and a memory, the memory storing machine executable instructions executable by the processor to implement the media data storage method of any one of claims 1 to 5 or the media data storage method of any one of claims 6 to 8.
13. A storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the media data storage method of any one of claims 1-5 or the media data storage method of any one of claims 6-8.
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