CN113301299B - Multi-channel video transmission method, system, terminal and storage medium - Google Patents
Multi-channel video transmission method, system, terminal and storage medium Download PDFInfo
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- CN113301299B CN113301299B CN202110490071.4A CN202110490071A CN113301299B CN 113301299 B CN113301299 B CN 113301299B CN 202110490071 A CN202110490071 A CN 202110490071A CN 113301299 B CN113301299 B CN 113301299B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application relates to a multichannel video transmission method, a multichannel video transmission system, a terminal and a storage medium, wherein the method comprises the following steps: the method comprises the following steps that a device side receives a long connection request from a client side, wherein the type of the long connection request comprises a picture transmission request and an audio transmission request; establishing long connection with a client according to the type of the long connection request, wherein the long connection type comprises a picture channel and an audio channel; data is transmitted to the client over the long connection. The method and the device have the effect of overcoming the defect that the existing video audio-video transmission scheme is single, different requirements received by the client cannot be met, and resource waste is caused.
Description
Technical Field
The present application relates to the field of video transmission technologies, and in particular, to a method, a system, a terminal, and a storage medium for multi-channel video transmission.
Background
The video transmission technology is a real-time data transmission technology based on a network, can be used for the functions of live broadcast, monitoring and the like, and is wide in application.
With the rapid development of internet technology, user demands are gradually diversified and complicated. Conventional solutions have no longer satisfied these changes. In order to reduce the pressure of a server, the equipment end synthesizes a picture and audio and transmits the synthesized picture and audio to the mobile end, so that the problems of network resource waste, incapability of meeting the requirements of users and the like are caused.
For the above related technologies, the inventor thinks that there is a defect that the existing video audio-video transmission scheme is single, and cannot meet different requirements of client reception, resulting in resource waste.
Disclosure of Invention
In order to solve the defects that the existing video audio-video transmission scheme is single and cannot meet different requirements of client receiving, and resource waste is caused, the application provides a multichannel video transmission method, a multichannel video transmission system, a multichannel video transmission terminal and a storage medium.
In a first aspect, the present application provides a multichannel video transmission method, which adopts the following technical scheme:
a multi-channel video transmission method, comprising the steps of:
the method comprises the following steps that a device side receives a long connection request from a client side, wherein the type of the long connection request comprises a picture transmission request and an audio transmission request;
establishing long connection with a client according to the type of the long connection request, wherein the long connection type comprises a picture channel and an audio channel;
data is transmitted to the client over the long connection.
By adopting the technical scheme, the pictures and the audio are transmitted in channels, the transmission mode is long connection, and users at the client can select the contents to be transmitted according to actual requirements so as to reduce occupied network resources, so that the adaptability is better and different requirements of the users can be met.
Preferably, the method for establishing the long connection comprises the following steps:
receiving a long connection request forwarded from a cloud, wherein request information comprises an equipment end ID and a client ID;
sending response request information to the cloud according to the client ID;
receiving the initiating connection information generated by the client in response to the request information;
a long connection is established with the client in response to the initiating connection information.
By adopting the technical scheme, the connection is established for the first time, the cloud is used for switching and addressing, the equipment end responds to the request of the client and makes a response, so that the equipment end and the client can know the state of the other side, and the long connection is established more stably.
Preferably, the method further comprises the following steps:
storing the client information of the established long connection;
if a long connection request is received from a stored client, a long connection is established with the client in response to the long connection request.
By adopting the technical scheme, if the client side is connected with the equipment side too long before, the client side can be directly connected without passing through a cloud end during subsequent reconnection, so that the step of connection establishment is simplified.
Preferably, the method further comprises the following steps:
sending heartbeat information to a client which does not perform data transmission and has established long connection at intervals of preset time;
if the client does not respond within the preset time, closing and terminating the long connection with the client.
By adopting the technical scheme, if the client and the equipment end have no data transmission for a long time, the long connection corresponding to the client is closed so as to release network resources.
Preferably, the method further comprises the following steps:
accumulating the number of the established long connections;
recording data receiving and transmitting quantity, receiving and transmitting frequency and priority level of the client with the established long connection;
if the number of the long connections is larger than the preset number, calculating the receiving and sending amount, the receiving and sending frequency and the weight of the priority level of the client;
and when receiving the long connection request, closing the long connection of the client with the smallest weight.
By adopting the technical scheme, the weight of each client side which is accessed is calculated, and the closed client side is selected according to the weight so as to realize the optimization of network resources.
Preferably, a transmitting and receiving quantity grade table and a transmitting and receiving frequency grade table are preset, wherein transmitting and receiving quantity grade intervals are arranged in the transmitting and receiving quantity grade table, and each transmitting and receiving quantity grade interval is associated with a unique transmitting and receiving quantity weight value; a transceiving frequency grade interval is arranged in the transceiving frequency grade table, and each transceiving frequency interval is associated with a unique transceiving frequency weight value;
the calculation formula of the weight of the receiving and sending quantity, the receiving and sending frequency and the priority level of the client is as follows:
X=（A+F）/T+P，
wherein, A is a weighted value of the receiving and sending quantity, F is a weighted value of the receiving and sending frequency, P is a priority, and T is the access duration of the client.
By adopting the technical scheme, the weight of the client is calculated, so that the corresponding client is closed according to the weight comparison, and the reasonable optimized utilization of network resources is realized.
In a second aspect, the present application provides a multichannel video transmission system, which adopts the following technical solutions:
a multi-channel video transmission system comprising:
the data receiving module is used for receiving a long connection request from a client by a device side, wherein the type of the long connection request comprises a picture transmission request and an audio transmission request;
the long connection establishing module is used for establishing long connection with the client according to the type of the long connection request, and the long connection type comprises a picture channel and an audio channel respectively;
and the data transmission module is used for transmitting data to the client side through the long connection.
By adopting the technical scheme, the data receiving module receives the long connection request, the long connection establishing module establishes the long connection, and the data transmission module transmits data, so that the data direct connection between the client and the equipment end is realized, and the separate transmission of the picture data and the audio data is realized, thereby adapting to different requirements.
In a second aspect, the present application provides an intelligent terminal, which adopts the following technical scheme:
an intelligent terminal comprising a memory and a processor, said memory having stored thereon a computer program capable of being loaded by the processor and of carrying out any of the methods as described above.
In a third aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions:
a computer-readable storage medium storing a computer program that can be loaded by a processor and executed to perform a method as any one of the preceding.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the picture and the audio are transmitted in channels in a transmission mode of establishing long connection, and users at the client can select contents to be transmitted according to actual requirements so as to reduce occupied network resources, so that the adaptability is better and the different requirements of the users can be met;
2. the connection is established for the first time, the cloud is used for switching and addressing, the equipment end responds to the request of the client, so that the equipment end and the client can both know the state of the other side, and the long connection is established more stably;
3. the data receiving module receives the long connection request, the long connection establishing module establishes long connection, and the data transmission module transmits data, so that data direct connection between the client and the equipment is realized, and picture data and audio data are separately transmitted, and different requirements are met.
Drawings
Fig. 1 is a block flow diagram of a multi-channel video transmission method according to an embodiment of the present application;
FIG. 2 is a block diagram of a flow chart of a method for multi-channel video transmission according to another embodiment of the present application;
FIG. 3 is a block flow diagram of a multi-channel video transmission method according to another embodiment of the present application;
fig. 4 is a block flow diagram of a method for multi-channel video transmission according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to fig. 1-4 and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
Referring to fig. 1, it should be noted that the step combination sequence in this embodiment is only used to illustrate this embodiment, and is not used to limit other combination sequences of the steps in this embodiment, and the method includes the following steps:
s1: the device side receives a long connection request from the client side, and the type of the long connection request comprises a picture transmission request and an audio transmission request.
S2: and establishing long connection with the client according to the type of the long connection request, wherein the long connection type comprises a picture channel and an audio channel.
S3: data is transmitted to the client over the long connection.
Specifically, network modules are arranged in the equipment end and the client side and are respectively connected with the cloud end through the network modules, and the equipment end and the client side can also be directly connected through the network modules.
In this embodiment, the device side may be a device such as a camera and a mobile phone that has functions of processing data and recording video and audio, and the client side may be a device such as a display screen, a computer, and a mobile phone that can play video and audio.
Before the connection between the equipment terminal and the client terminal is not established, the client terminal requests to acquire image and audio data received by a certain equipment terminal, and then sends a long connection request to the client terminal, wherein the long connection request is divided into a picture transmission request and an audio transmission request, so that a user can send the picture transmission request according to actual requirements, for example, when only pictures are needed and audio is not needed, audio transmission is not needed, unnecessary data transmission is reduced, and network resources are reasonably utilized.
The client receives audio data from the equipment end, transmits the audio data to the audio processing module for processing and then stores the audio data in the storage module, and the audio processed by the audio processing module can be directly played; the image data is transmitted to the image processing module for processing and then stored in the storage module, and the image processed by the image processing module can also be directly played; the client can play audio and pictures simultaneously, and also can play audio only or pictures only.
And the channels for transmitting the picture and the audio are separated, so that the client side can conveniently access the data through the corresponding interface and directly store the data in the corresponding folder, the data is convenient to arrange and summarize, the response rate of the client side is shortened, and the processing memory occupied by the data transceiving of the client side and the equipment side is reduced.
After the long connection is established between the client and the equipment end, and before the long connection is not disconnected, the client and the equipment end do not need to establish the connection for multiple times when data transmission is carried out, so that the resource occupation is reduced, and the probability of errors caused by the multiple times of connection establishment is also reduced.
Optionally, in another embodiment, the method for establishing the long connection includes:
(1) And receiving a long connection request forwarded from the cloud, wherein the request information comprises an equipment end ID and a client ID.
(2) And sending response request information to the cloud according to the client ID.
(3) And receiving the initiating connection information generated by the client in response to the request information.
(4) A long connection is established with the client in response to the initiating connection information.
When the device side and the client side are in long connection for the first time, the client side integrates the device side ID carrying the long connection to be established and the client side ID of the client side to form request information, the request information is sent to the cloud side, the cloud side carries out addressing according to the device side ID in a routing table and sends the request information to the corresponding device side, after the device side receives the request information, the cloud side can obtain the routing information of the client side, then the response request information is sent to the cloud side, and the cloud side forwards the response request information and the routing information of the client side to the device side.
The method comprises the steps that through request information sending and responding, the equipment end and the client can know the states of the two parties, if the cloud end normally forwards long connection request information to the equipment end and forwards response request information of the equipment end to the client, the equipment end and the client are in a connectable state, and waiting time and processing time caused by the fact that the equipment end and/or the client cannot be connected when connection is conducted are avoided; routing information of the equipment end and the client side is mutually forwarded to the other party through the cloud side, so that the equipment end and the client side can be directly connected according to the routing information, the cloud side forwarding is not needed, the connection is directly established, the forwarding times are reduced, and the probability of errors in the forwarding of data can also be reduced.
Referring to fig. 2, optionally, in another embodiment, the method further comprises the following steps:
s4: storing the client information of the established long connection.
S5: if a long connection request is received from a stored client, a long connection is established with the client in response to the long connection request.
The device side stores the client information of the client side which has established the long connection, the specific client information comprises a client ID and client routing information, the client side also stores the device side information of the device side which establishes the long connection, and the device side information comprises the device ID and the device routing information. If the long connection between the client and the equipment end is disconnected, the client requests to be connected with the equipment end to acquire images and audio, the client directly sends the long connection request to the equipment end according to the routing information of the equipment end needing to be connected, the equipment end judges whether the equipment end ID carried in the long connection request information is the same as the equipment end ID of the equipment end, if the equipment end ID carried in the long connection request information is the same as the equipment end ID of the equipment end, the equipment end acquires the client information stored in the equipment end, associates the routing information of the client of the equipment end according to the client ID information in the long connection request, sends response information to the client according to the routing information and establishes long connection with the client, and the step of reestablishing long connection between the equipment end and the client recorded by existing connection is simplified, so that the processing time of establishing long connection between the equipment end and the client is shortened.
Optionally, in other embodiments, when the device side establishes connection with the client for the first time, the client sends a long connection request to the cloud, and needs to carry a preset key, and the cloud analyzes the key to determine whether the key is correct; and if the connection request is correct, forwarding the long connection request to the corresponding equipment end so as to control the access state of the equipment end. The analysis and verification of the key are arranged at the cloud end, so that the processing steps of the equipment end are simplified, and the response time of the equipment end is shortened; the client information verified by the cloud is recorded in the equipment end, so that when the same client needs to be accessed to the equipment end next time, the equipment end only needs to confirm the ID of the client, and long connection is established with the corresponding client according to the routing information associated with the ID of the client, the client can be allowed to be accessed, and the client does not need to be verified by a key of the cloud again.
Referring to fig. 3, optionally, in another embodiment, the method further includes the following steps:
s6: and sending heartbeat information to the client which does not perform data transmission and has established the long connection at preset time intervals.
S7: if the client does not respond within the preset time, closing and terminating the long connection with the client.
In this embodiment, the preset time is 2 hours, and the actual preset time may be 1 hour, 3 hours, 4 hours, etc., and is set according to the actual situation.
If the client and the device do not perform data interaction within the preset time, namely within 2 hours specified in the embodiment, the device sends heartbeat information to the client without data interaction, if the client has a response, the representation connection is normal, and if the client does not have a response, the representation connection is abnormal; the preset time may be a time that after it is determined that the client does not respond, heartbeat information is sent once every 75 seconds, and the heartbeat information is continuously sent for 10 times, and if the client does not respond within the preset time, the long connection is disconnected to release the network resource.
Referring to fig. 4, optionally, in another embodiment, the method further includes the following steps:
s8: the number of long connections established is accumulated.
S9: and recording the data receiving and transmitting quantity, the receiving and transmitting frequency and the priority level of the client with the established long connection.
S10: and if the long connection quantity is greater than the preset quantity, calculating the weight of the receiving and sending quantity, the receiving and sending frequency and the priority level of the client.
S11: and when receiving the long connection request, closing the long connection of the client with the smallest weight.
The number of the accessible clients of the equipment end is limited to a certain extent, the preset number is the maximum number of the accessible clients of the equipment end, and if the access number of the equipment end exceeds the maximum accessible number, the response time and the processing time of the equipment end are both increased to exceed the normal range, so that network redundancy is caused.
When the number of the devices accessed by the device side is equal to the preset number, a new client side is ready to access, the device side obtains the information of the client sides which establish the long connection at the moment, the weight of each client side is calculated, and the client sides with the relation are selected according to the weight relation so as to free network resources to access the new client side.
Specifically, the receiving and sending amount, the receiving and sending frequency and the priority level receiving and sending amount of the weight associated with the client refer to the total amount of data transmitted between the client and the equipment end when the client establishes a long connection with the equipment end at the current time; the receiving and sending frequency refers to the number of times of data transmission since the equipment end establishes long connection with the client; the priority level is a priority level preset by the staff according to the property of the client, for example, the first priority level is the client of the manager, the second priority level is the client of the operator, and the weight ratio of the first priority level is greater than that of the second priority level.
And calculating the weight by the data related to the weight to realize better network resource allocation.
Optionally, in a real-time manner, a transceiver level table and a transceiver frequency level table are preset, transceiver level intervals are set in the transceiver level table, and each transceiver level interval is associated with a unique transceiver weight value; the transceiving frequency grade table is internally provided with transceiving frequency grade intervals, and each transceiving frequency interval is associated with a unique transceiving frequency weight value.
The calculation formula of the weight of the transmitting and receiving quantity, the transmitting and receiving frequency and the priority level of the client is as follows: x = (a + F)/T + P, where a is a transmit-receive weight, F is a transmit-receive frequency weight, P is a priority, and T is a client access duration.
Specifically, the transmit-receive amount level table forms a large interval with the transmit-receive amount of 0 and the transmit-receive amount of X (X is a positive number) as end values at both ends, a plurality of small intervals are evenly divided along the size in the large interval, each small interval is associated with a unique weight value, and when the transmit-receive amount falls into a certain small interval, the weight value corresponding to the transmit-receive amount of the client can be obtained through the association relation.
The receiving and transmitting frequency grade table forms a large interval by taking the frequency from 0 to Y as end values at two ends, the large interval is evenly divided into a plurality of small intervals along the size, each receiving and transmitting frequency small interval is associated with a unique weight value, and if the receiving and transmitting frequency falls into the small interval, the weight value of the receiving and transmitting frequency of the client is considered as the weight value associated with the interval.
The present embodiment further discloses a multi-channel video transmission system, which includes:
and the data receiving module is used for enabling the equipment terminal to receive a long connection request from the client terminal, wherein the type of the long connection request comprises a picture transmission request and an audio transmission request.
And the long connection establishing module is used for establishing long connection with the client according to the type of the long connection request, and the long connection type comprises a picture channel and an audio channel.
And the data transmission module is used for transmitting data to the client side through the long connection.
The embodiment also discloses an intelligent terminal, which comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes the method.
The present embodiment also discloses a computer readable storage medium storing a computer program that can be loaded by a processor and execute the method as described above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware associated with instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, databases, or other media used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It should be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional units and modules is only used for illustration, and in practical applications, the above function distribution may be performed by different functional units and modules as needed, that is, the internal structure of the device is divided into different functional units or modules, so as to perform all or part of the above described functions.
Claims (7)
1. A multi-channel video transmission method, comprising the steps of:
the method comprises the steps that a device side receives a long connection request from a client side, wherein the type of the long connection request comprises a picture transmission request and an audio transmission request, the picture transmission request is sent when only pictures are needed and audio is not needed, and audio transmission is not needed;
the method comprises the steps that long connection is established with a client according to the type of a long connection request, the long connection type is respectively provided with a picture channel and an audio channel, the long connection is established, the long connection comprises the steps that a device end receives the long connection request forwarded by a cloud, request information comprises a device end ID and a client ID, the device end sends response request information to the cloud according to the client ID, the cloud forwards the response request information of the device end to the client normally, the device end receives initiation connection information generated by the client in response to the request information, and the device end responds to the initiation connection information and establishes long connection with the client;
transmitting data to the client over the long connection;
the method comprises the steps that an equipment side stores client side information of long connection established, wherein the client side information comprises a client side ID and client side routing information, the client side also stores equipment side information of the equipment side of the long connection established, and the equipment side information comprises an equipment side ID and client side routing information;
if a long connection request is received from a stored client, a long connection is established with the client in response to the long connection request.
2. The multi-channel video transmission method according to claim 1, further comprising:
sending heartbeat information to a client side which does not perform data transmission and has established long connection at intervals of preset time;
if the client does not respond within the preset time, closing and terminating the long connection with the client.
3. The multi-channel video transmission method according to claim 1, further comprising:
accumulating the number of the established long connections;
recording data receiving and transmitting quantity, receiving and transmitting frequency and priority level of the client with the established long connection;
if the number of the long connections is larger than the preset number, calculating the receiving and sending amount, the receiving and sending frequency and the weight of the priority level of the client;
and when receiving the long connection request, closing the long connection of the client with the minimum weight.
4. The multi-channel video transmission method according to claim 3, wherein a transceiving quantity level table and a transceiving frequency level table are preset, wherein transceiving quantity level intervals are provided in the transceiving quantity level table, and each transceiving quantity level interval is associated with a unique transceiving quantity weight value; a transceiving frequency grade interval is arranged in the transceiving frequency grade table, and each transceiving frequency interval is associated with a unique transceiving frequency weight value;
the calculation formula of the weight of the receiving and sending quantity, the receiving and sending frequency and the priority level of the client is as follows:
X=（A+F）/T+P，
wherein, A is a weighted value of the receiving and sending quantity, F is a weighted value of the receiving and sending frequency, P is a priority, and T is the access duration of the client.
5. A multi-channel video transmission system, comprising:
the data receiving module is used for enabling the equipment terminal to receive a long connection request from the client terminal, wherein the types of the long connection request comprise a picture transmission request and an audio transmission request, and when only pictures are needed and audio is not needed, the picture transmission request is sent without transmitting the audio;
the long connection establishing module is used for establishing long connection with the client according to the type of the long connection request, the long connection types are respectively provided with a picture channel and an audio channel, the long connection establishing comprises the steps that the equipment end receives the long connection request forwarded by the cloud, the request information comprises an equipment end ID and a client ID, the equipment end sends response request information to the cloud according to the client ID, the equipment end receives initiating connection information generated by the client in response to the request information, and the equipment end responds to the initiating connection information and establishes long connection with the client;
the data transmission module is used for transmitting data to the client through the long connection;
the system further comprises: storing client information of the established long connection, wherein the client information comprises a client ID and client routing information, the client also stores equipment end information of the equipment end of the established long connection, and the equipment end information comprises an equipment end ID and client routing information; if a long connection request from a stored client is received, a long connection is established with the client in response to the long connection request.
6. An intelligent terminal, comprising a memory and a processor, the memory having stored thereon a computer program which can be loaded by the processor and which performs the method of any of claims 1 to 4.
7. A computer-readable storage medium, characterized in that a computer program is stored which can be loaded by a processor and which executes a method according to any one of claims 1 to 4.
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| CN113923249B (en) * | 2021-10-12 | 2024-08-27 | 工银科技有限公司 | High-performance network long connection establishment method and device |
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| CN116506507A (en) * | 2023-06-29 | 2023-07-28 | 天津市城市规划设计研究总院有限公司 | Data processing method based on client characteristics |
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