CN112887744A - Live broadcast data transmission control method for large healthy intelligent live broadcast hall - Google Patents
Live broadcast data transmission control method for large healthy intelligent live broadcast hall Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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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
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2385—Channel allocation; Bandwidth allocation
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Abstract
The invention discloses a live broadcast data transmission control method for a large healthy intelligent live broadcast hall, which is applied to a 5G live broadcast system and comprises a video acquisition module, a local processing module and a 5G module, wherein the 5G module is connected with a live broadcast server, the 5G processing module comprises n 5G terminals, and each 5G terminal preferentially uses different 5G operators; the method comprises the following steps: the method comprises the steps that videos are collected through a video collection module, and are transcoded through a local processing module, and then the transcoded videos are divided into data packets with the same size; data segmentation and check packet generation: data transmission; and the live broadcast server receives the data strips and the check data strips, and checks the accuracy of the data strips. Through the setting, a plurality of 5G terminals can be organically integrated through the method, so that clearer single-channel or multi-channel videos can be transmitted, meanwhile, the error rate of live data transmission can be further reduced through the setting of the check data strips, and the stability and accuracy of the live data transmission are improved.
Description
Technical Field
The invention relates to the technical field of live broadcasting, in particular to a live broadcasting data transmission control method for a large healthy intelligent live broadcasting hall.
Background
Live webcasting generally refers to erecting independent signal acquisition equipment (audio and video) on site, importing the signal acquisition equipment into a director terminal (director equipment or platform), uploading the signal to a server through a network, and publishing the signal to a website for people to watch.
The network live broadcast absorbs and continues the advantages of the internet, the online live broadcast is carried out by utilizing a video mode, the contents such as product display, related conferences, background introduction, scheme evaluation, online investigation, conversation interview, online training and the like can be released to the internet on site, and the popularization effect of the activity site is enhanced by utilizing the characteristics of intuition, quickness, good expression form, rich contents, strong interactivity, unlimited region, divisible audience and the like of the internet. After the live broadcast is finished, the live broadcast can also continuously provide rebroadcast and on-demand for readers at any time, effectively prolongs the live broadcast time and space, and exerts the maximum value of the live broadcast content.
The greatest advantage of live webcasting lies in the autonomy of live webcasting: the independently controllable audio and video acquisition is completely different from the single (not as smooth as the television watching effect) watching of the rebroadcast television signal. The system can be used for live broadcast of television media which are difficult to be live broadcast, such as government affair open meetings, audience audition meetings, court trial live broadcast in court, official examination training, product release meetings, enterprise meetings, industry meetings, exhibition live broadcast and the like.
For example, the invention patent application with publication number CN109218764A discloses a live data transmission method, which is applied to a live data transmission system, where the system includes a first server and a second server, and the first server and the second server are respectively used for storing a live data packet to be sent, and the method includes: when a first server fails, acquiring a first direct broadcast data packet of the first server, wherein the first direct broadcast data packet is the last direct broadcast data packet sent to a client by the first server and carries a first sequence number; determining a second live broadcast data packet according to the first sequence number, wherein the second live broadcast data packet carries a second sequence number; and sending the second live broadcast data packet to the client. The invention also provides a server and a live data transmission system. The embodiment of the invention can ensure that the live broadcast data packets received by the client are continuous, thereby greatly improving the playing fluency of the live broadcast video.
The method can improve the fluency of playing in the live broadcasting process, and is favorable for improving the stability of live broadcasting. However, as with the existing live broadcast technology, the problem of practical application of the live broadcast technology in combination with the 5G network is not considered.
Meanwhile, with the development of health live broadcast in recent years, the application is more and more extensive. This type of live broadcast is typically present in hospitals and typically employs a small, mobile live broadcast hall as the live broadcast venue. Therefore, the health live broadcast mainly depends on a 5G network, and further, the application of the live broadcast technology combined with the 5G should be considered.
In order to solve the above situation, the application provides a live broadcast data transmission control method for a big healthy intelligent live broadcast hall.
Disclosure of Invention
The invention aims to provide a live broadcast data transmission control method for a large healthy intelligent live broadcast hall, which can organically integrate a plurality of 5G terminals, so that clearer single-channel or multi-channel videos can be transmitted, meanwhile, the error rate of live broadcast data transmission can be further reduced by checking the arrangement of data strips, and the stability and the accuracy of the live broadcast data transmission are improved.
In order to achieve the purpose, the invention provides the following technical scheme: a big health intelligent live broadcast living room live broadcast data transmission control method is applied to a 5G live broadcast system, the 5G live broadcast system comprises a video acquisition module, a local processing module and a 5G module, the 5G module is connected with a live broadcast server, the 5G processing module comprises n 5G terminals, n is more than or equal to 3, and each 5G terminal preferentially uses different 5G operators;
the method comprises the following steps:
s1, acquiring a video through a video acquisition module, transcoding the video through a local processing module, and then dividing the transcoded video into data packets with the same size;
s2, generating a data segmentation and check package:
s2.1, dividing the data packet into n-1 parts with equal size, wherein each part forms a data strip;
s2.2, numbering the data strips in sequence, and carrying out corresponding XOR (exclusive OR) verification on data 0 or 1 at the same position of the data strips in sequence through a data processing module;
s2.3, sequentially integrating the XOR check results into check data stripes;
s3, data transmission: transmitting the n-1 data stripes and the check data stripes to a live broadcast server through the n 5G terminals in sequence;
s4, data receiving and forwarding:
s4.1, the live broadcast server receives the n-1 data strips and the check data strips, and checks the accuracy of the n-1 data strips;
s4.2, if the verification result is accurate, integrating the data stripes into a data packet;
s4.3, if one of the verification results is inaccurate, reversely calculating an error data stripe through the verification data stripe, and integrating the data stripes into a data packet;
and S4.4, decoding the data packet, and distributing the decoded data packet to the live broadcast client.
Preferably, the check mode for the data stripe in S4 is CRC check.
Preferably, the data stripes and the fixed positions of the verification data stripes are further provided with serial number check codes, and the serial number check codes are binary characters of the reference numbers of the data stripes.
Preferably, the fixed positions of the data stripe and the check data stripe are further provided with a time check code, and the check of the time check code is preferably performed with the CRC check.
Preferably, a time threshold T is set, if a time difference value between the n-2 data stripes that have been received and the last data stripe among the n-1 data stripes having the same time check code is T, if T is greater than T, the last data stripe is reversely calculated by the check data stripe.
Preferably, if T is greater than T and repeatedly appears in one of the 5G terminals, the 5G terminal is judged to have too high delay, the use of the 5G terminal is stopped, and the check result is returned as inaccurate.
Preferably, an electronic device is provided, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the above method when executing the program.
Preferably, a non-transitory computer-readable storage medium is provided, wherein the non-transitory computer-readable storage medium stores computer instructions for causing the computer to perform the above-mentioned method.
Compared with the prior art, the invention has the beneficial effects that:
(1) the bandwidths of a plurality of 5G terminals can be organically combined together, so that the transmission bandwidth is larger, more clear single-path and multi-path videos can be transmitted, and the application prospect is better;
(2) the data check strip is arranged, so that the error rate of live data transmission can be further reduced, and the stability and accuracy of live data transmission are improved;
(3) the setting of the time threshold t can reduce the calculation amount of the live broadcast server, so that the cost is further saved, and the method has a wider application range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of example 1 of the present invention;
FIG. 2 is a schematic diagram of the structure of a data stripe and a check data stripe in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It is to be noted that technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Example 1: a big health intelligent live broadcast living room live broadcast data transmission control method is applied to a 5G live broadcast system, as shown in figures 1 and 2, the 5G live broadcast system comprises a video acquisition module, a local processing module and a 5G module, the 5G module is connected with a live broadcast server, the 5G processing module comprises n 5G terminals, n is more than or equal to 3, and each 5G terminal preferentially uses different 5G operators;
the method comprises the following steps:
s1, acquiring a video through a video acquisition module, transcoding the video through a local processing module, and then dividing the transcoded video into data packets with the same size;
s2, generating a data segmentation and check package:
s2.1, dividing the data packet into n-1 parts with equal size, wherein each part forms a data strip;
s2.2, numbering the data strips in sequence, and carrying out corresponding XOR (exclusive OR) verification on data 0 or 1 at the same position of the data strips in sequence through a data processing module;
s2.3, sequentially integrating the XOR check results into check data stripes;
s3, data transmission: transmitting the n-1 data stripes and the check data stripes to a live broadcast server through the n 5G terminals in sequence;
s4, data receiving and forwarding:
s4.1, the live broadcast server receives the n-1 data strips and the check data strips, and checks the accuracy of the n-1 data strips;
s4.2, if the verification result is accurate, integrating the data stripes into a data packet;
s4.3, if one of the verification results is inaccurate, reversely calculating an error data stripe through the verification data stripe, and integrating the data stripes into a data packet;
and S4.4, decoding the data packet, and distributing the decoded data packet to the live broadcast client.
Further, in the present embodiment, the following setting is also made:
1. the data stripe is checked in S4 in a CRC check.
2. The fixed position of the data strip is also provided with a serial number check code and a time check code, and the serial number check code is a binary character of the serial number of the data strip. And the check of the time check code is prior to the CRC check.
3. And setting a time threshold T, if the time difference value between the received n-2 data stripe and the last data stripe in the n-1 data stripes with the same time check code is T, and if T is greater than T, reversely calculating the last data stripe through the check data stripe. If T is larger than T and repeatedly appears in one of the 5G terminals, the 5G terminal is judged to have too high delay, the 5G terminal is stopped from being used, and the check result is returned to be inaccurate.
4. In this example n is equal to 3.
It should be noted that the method of the embodiment of the present invention may be executed by a single device, such as a computer or a server. The method of the embodiment can also be applied to a distributed scene and completed by the mutual cooperation of a plurality of devices. In the case of such a distributed scenario, one of the multiple devices may only perform one or more steps of the method according to the embodiment of the present invention, and the multiple devices interact with each other to complete the method.
Example 2: the 5G live broadcast system comprises a video acquisition module, a local processing module and a 5G module, wherein the 5G module is connected with a live broadcast server, the 5G processing module comprises n 5G terminals, and n is greater than or equal to 3, and each 5G terminal preferentially uses different 5G operators.
Example 3: an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of embodiment one when executing the program.
Example 4: a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of embodiment one.
Computer-readable media of the present embodiments, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
In conclusion, the beneficial effects of the invention are as follows: (1) the bandwidths of a plurality of 5G terminals can be organically combined together, so that the transmission bandwidth is larger, more clear single-path and multi-path videos can be transmitted, and the application prospect is better; (2) the data check strip is arranged, so that the error rate of live data transmission can be further reduced, and the stability and accuracy of live data transmission are improved; (3) the setting of the time threshold t can reduce the calculation amount of the live broadcast server, so that the cost is further saved, and the method has a wider application range.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A big health wisdom live broadcast room live broadcast data transmission control method is characterized in that: the method is applied to a 5G live broadcast system, the 5G live broadcast system comprises a video acquisition module, a local processing module and a 5G module, the 5G module is connected with a live broadcast server, the 5G processing module comprises n 5G terminals, n is more than or equal to 3, and each 5G terminal preferentially uses different 5G operators;
the method comprises the following steps:
s1, acquiring a video through a video acquisition module, transcoding the video through a local processing module, and then dividing the transcoded video into data packets with the same size;
s2, generating a data segmentation and check package:
s2.1, dividing the data packet into n-1 parts with equal size, wherein each part forms a data strip;
s2.2, numbering the data strips in sequence, and carrying out corresponding XOR (exclusive OR) verification on data 0 or 1 at the same position of the data strips in sequence through a data processing module;
s2.3, sequentially integrating the XOR check results into check data stripes;
s3, data transmission: transmitting the n-1 data stripes and the check data stripes to a live broadcast server through the n 5G terminals in sequence;
s4, data receiving and forwarding:
s4.1, the live broadcast server receives the n-1 data strips and the check data strips, and checks the accuracy of the n-1 data strips;
s4.2, if the verification result is accurate, integrating the data stripes into a data packet;
s4.3, if one of the verification results is inaccurate, reversely calculating an error data stripe through the verification data stripe, and integrating the data stripes into a data packet;
and S4.4, decoding the data packet, and distributing the decoded data packet to the live broadcast client.
2. The big health intelligent living room live broadcast data transmission control method as claimed in claim 1, wherein: the data stripe is checked in S4 in a CRC check.
3. The big health intelligent living room live broadcast data transmission control method as claimed in claim 2, wherein: and the fixed positions of the data strip and the check data strip are also provided with a serial number check code which is a binary character of the serial number of the data strip.
4. The big health intelligent living room live broadcast data transmission control method as claimed in claim 2, wherein: and time check codes are further arranged at the fixed positions of the data strips and the check data strips, and the check of the time check codes is prior to the check of the CRC.
5. The big health intelligent living room live broadcast data transmission control method as claimed in claim 4, wherein: and setting a time threshold T, if the time difference value between the received n-2 data stripe and the last data stripe in the n-1 data stripes with the same time check code is T, and if T is greater than T, reversely calculating the last data stripe through the check data stripe.
6. The big health intelligent living room live broadcast data transmission control method as claimed in claim 5, wherein: if T is larger than T and repeatedly appears in one of the 5G terminals, the 5G terminal is judged to have too high delay, the 5G terminal is stopped from being used, and the check result is returned to be inaccurate.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1 to 6 when executing the program.
8. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 6.
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