CN115567099A - Big data transmission method and device based on satellite communication - Google Patents
Big data transmission method and device based on satellite communication Download PDFInfo
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- CN115567099A CN115567099A CN202211417419.8A CN202211417419A CN115567099A CN 115567099 A CN115567099 A CN 115567099A CN 202211417419 A CN202211417419 A CN 202211417419A CN 115567099 A CN115567099 A CN 115567099A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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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
Abstract
The invention provides a big data transmission method and a big data transmission device based on satellite communication, which relate to the technical field of satellite communication and are characterized in that data to be transmitted are obtained; judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not; if so, splitting the data to be transmitted according to the splicing service frame type structure and then transmitting the data; otherwise, the data to be transmitted is directly sent according to the common service frame type structure, short message large data volume information transmission can be achieved, type distinguishing is added, splitting operation is carried out only by splicing the service frame type data when the common service frame type data is directly processed, transmission efficiency is improved, and the unpacking mode, namely the length of each packet of data and the total packet number can be flexibly processed according to actual conditions, so that the method is more intelligent.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a big data transmission method and device based on satellite communication.
Background
With the progress and development of society and science and technology, a satellite system is gradually integrated into social life, a short message system based on satellite communication can solve the communication problem in areas without operator network coverage, and communication of information can be realized between different user application terminals through a short message function, so that the application of short message communication is greatly popularized in various fields. In the using process, as the civil use is limited by the frequency and the length, the single data capacity is limited, such as that the big dipper generation is about 300 bytes, and the transmission of large data volume information, such as large texts or pictures, can not be carried out, great inconvenience is brought when the user uses the system, and the use experience of the user is influenced.
Disclosure of Invention
The invention provides a satellite communication-based big data transmission method and device, which are used for solving the defect that the use experience of a user is influenced because the traditional short message communication cannot transmit big data information.
The invention provides a big data transmission method based on satellite communication, which comprises the following steps:
acquiring data to be transmitted;
judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not;
if so, splitting the data to be transmitted according to a splicing service frame type structure and then transmitting the data;
otherwise, the data to be transmitted is directly sent according to the common service frame type structure.
According to the big data transmission method based on satellite communication provided by the invention, the splicing service frame type structure comprises the following steps:
splicing business frame subtype, frame stream, effective data length and frame effective data, wherein the frame effective data determines data content according to the splicing business frame subtype.
According to the big data transmission method based on satellite communication provided by the invention, the data to be transmitted is split according to the splicing service frame type structure and then is transmitted, and the method comprises the following steps:
determining a packet sequence number and a total packet number according to the data size of the data to be transmitted and/or the idle condition of the satellite channel resources;
splitting the data to be transmitted into a plurality of actual data packets according to the total packet number;
and sending the plurality of actual data packets according to the packet sequence numbers.
According to the satellite communication-based big data transmission method provided by the invention, when the number of bytes of the actual data packet is less than the preset number of bytes, the empty bytes are filled with 0.
According to the big data transmission method based on satellite communication provided by the invention, after the data to be transmitted is obtained, the method further comprises the following steps:
judging whether the total capacity of the data to be transmitted exceeds a preset transmission amount upper limit or not;
if yes, the exception is directly returned.
The big data transmission method based on satellite communication provided by the invention further comprises the following steps:
after receiving the transmission data frame, judging the type of the transmission data frame;
if the transmission data frame type is a common service frame type, directly carrying out subsequent processing on the received data;
if the transmission data frame type is the splicing service frame type, storing the received transmission data frame into a cache region, sequentially acquiring actual data packets from the cache region according to the frame flow and the total packet number corresponding to the sub-type of the splicing service frame, splicing the actual data packets according to packet sequence numbers, and then carrying out subsequent processing.
According to the big data transmission method based on satellite communication provided by the invention, the method comprises the following steps
A splicing traffic frame subtype comprising:
splicing the common frame of the service frame and splicing the tail frame of the service frame.
The invention also provides a big data transmission device based on satellite communication, which comprises:
the acquisition module is used for acquiring data to be transmitted;
the judging module is used for judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not;
the splitting and sending module is used for splitting and sending the data to be transmitted according to a splicing service frame type structure when the capacity of the data to be transmitted is larger than a preset splitting capacity threshold;
and the direct sending module is used for directly sending the data to be transmitted according to a common service frame type structure when the capacity of the data to be transmitted is not more than a preset splitting capacity threshold value.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to realize the satellite communication-based big data transmission method.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the satellite communication-based big data transmission method as any one of the above.
According to the big data transmission method and device based on satellite communication, data to be transmitted are obtained; judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not; if so, splitting the data to be transmitted according to the splicing service frame type structure and then transmitting the data; otherwise, the data to be transmitted is directly sent according to the common service frame type structure, the short message large data volume information transmission can be realized, the type distinction is increased, the non-spliced service frame type data is directly processed, the spliced service frame type data is split, and the transmission efficiency is improved.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flow chart of a method for transmitting big data based on satellite communication according to the present invention;
FIG. 2 is a second schematic flowchart of a method for transmitting big data based on satellite communication according to the present invention;
FIG. 3 is a timing diagram of a method for transmitting big data based on satellite communication according to the present invention;
FIG. 4 is a functional block diagram of a large data transmission device based on satellite communication according to the present invention;
fig. 5 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present 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.
Fig. 1 is a flowchart of a method for transmitting big data based on satellite communication according to an embodiment of the present invention, and as shown in fig. 1, the method for transmitting big data based on satellite communication according to the embodiment of the present invention includes:
in the embodiment of the invention, the data acquired by the data acquisition end is used as the data to be transmitted.
in the embodiment of the present invention, the preset split capacity threshold is 160 bits (20 bytes).
and step 104, otherwise, directly sending the data to be transmitted according to a common service frame type structure.
In the embodiment of the present invention, the common service frame type structure includes: frame type, frame pipeline, effective data length, and frame effective data, as shown in table 1; the splicing service frame type structure comprises: the frame effective data comprises a packet total number and actual data if the frame effective data is a splicing service frame tail frame, the frame effective data comprises a packet sequence number and actual data if the frame effective data is a splicing service frame common frame, and the type structure of the splicing service frame is shown in tables 2.1, 2.2,3.1, 3.2,4.1 and 4.2.
Table 1 general service frame type structure table
Table 2.1 table of splicing service frame end frame type structure after 8bit expansion
Table 2.2 table of general frame type structure of splicing service frame extended by 8bit
Table 3.1 table of splicing service frame end frame type structure after expansion according to 4bit
Table 3.2 table of structure of generic frame type of splicing service frame extended by 4 bits
Table 4.1 table of splicing service frame end frame type structure after 16bit expansion
Table 4.2 table of structure of generic frame type of splicing service frame extended by 16 bits
In the step 103, splitting the data to be transmitted according to the splicing service frame type structure and then transmitting the split data, specifically including:
step 1031, determining a packet sequence number and a total packet number according to the data size of the data to be transmitted and/or the idle condition of the satellite channel resources;
in the embodiment of the invention, data is sent out with the fastest efficiency according to the idle condition of the current satellite channel resources (long data channels and short data channels). If the long channel resources are idle at present, the unpacking quantity can be reduced, and the data packet can be sent out as soon as possible; if the band transmission data is less, the unpacking quantity can be reduced.
The unpacking mode, namely the length of each packet of data and the total number of the packets can be flexibly processed according to actual conditions, and the unpacking mode is more intelligent.
Step 1032, dividing the data to be transmitted into a plurality of actual data packets according to the total packet number;
and 1033, sending the plurality of actual data packets according to the packet sequence numbers.
In the embodiment of the invention, when the number of bytes of the actual data packet is less than the preset number of bytes, 0 is used for filling the vacant bytes. The preset number of bytes is, for example, 20 bytes.
The transmission data split transmission procedure exceeding 160 bits (20 bytes) is exemplified as follows:
the data to be transmitted is 25 bytes, and the content is 1234567890123456789012345;
splitting data to be transmitted into two data packets, namely 1234567890123456789 and 012345;
actual transmission, first packet 19 bytes data: 0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9; second packet 6 bytes data: <xnotran> 1,0,1,2,3,4,5,0,0,0,0,0,0,0,0,0,0,0,0,0, . </xnotran>
The big data transmission method based on satellite communication provided by the embodiment of the invention obtains data to be transmitted; judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not; if so, splitting the data to be transmitted according to the splicing service frame type structure and then transmitting the data; otherwise, the data to be transmitted is directly sent according to the common service frame type structure, the short message large data volume information transmission can be realized, the type distinction is increased, the non-spliced service frame type data is directly processed, the spliced service frame type data is split, and the transmission efficiency is improved.
In some embodiments of the present invention, after acquiring the data to be transmitted, the method further includes:
judging whether the total capacity of the data to be transmitted exceeds a preset transmission amount upper limit or not;
if yes, directly returning to the exception.
The predetermined upper limit of the transfer size is 304 bytes, for example.
Based on any of the above embodiments, as shown in fig. 2, a method for transmitting big data based on satellite communication according to the present invention includes:
and step 204, sequentially acquiring actual data packets from the cache region according to the total packet number of the data region at the tail of the splicing service frame and the frame flow of the tail of the splicing service frame, splicing the actual data packets according to the packet serial numbers, and then carrying out subsequent processing.
In step 205, if all the packet data have not been received, the packet data are reprocessed after a period of time.
For example, the frame stream is 2022, and the total number of packets is 10, data of the frame streams 2013-2022 is obtained. Because each actual data packet does not contain the total number of packets, but distinguishes the data frame with the same transmission data by the serial number, the defect that each packet of data needs to transmit the total number of packets is avoided, and limited resources are utilized to a greater extent.
The transmission data processing sequence is shown in fig. 3:
1) When the sending end receives the data information to be transmitted by the acquisition end, if the data information exceeds the upper limit of the designed transmission amount of the system (304 bytes), the exception is directly returned;
2) Judging whether the data size exceeds the capacity of the common service frame by 160 bits (20 bytes), and if not, directly sending the data according to the type of the original common service frame;
3) Normal data with more than 160 bits (20 bytes) are split according to a set protocol, and the last packet of data packet is filled with 0 when the number of bytes is less than 20 bytes;
4) After receiving the data, the receiving end firstly judges whether splicing is needed according to the frame type, and the common service frame directly carries out subsequent processing;
5) Firstly, putting the spliced service frame into a cache region, judging whether the frame type is a tail frame or not, then obtaining sequential frame data in the cache according to the frame flow and the total packet number of the frame, splicing according to the packet sequence number, and then carrying out normal subsequent processing;
6) If all the packet data do not arrive, the packet data are reprocessed after a period of time.
For example, using the first 8 bits of the effective data area of the frame as unpacking information, the higher 4 bits as a packet sequence number, and the lower 4 bits as a total packet number, each frame of data can be maximally split into 16 packets, and 156 bits (19.5 bytes) are maximally transmitted per packet, so that the maximum data capacity can be expanded from the original 160 bits (20 bytes) to 16 × 156= 2496bits (312 bytes); the capacity expansion can also be adjusted and optimized according to actual conditions, for example, the capacity expansion is performed according to the first 4 bits to 632 bits (79 bytes), or the capacity expansion is performed according to the first 16 bits to 38400 bits (4800 bytes), it needs to be noted that the capacity expansion capacity can be set according to actual requirements, and the embodiment of the present invention is not limited.
In this embodiment, the transmission of the short message with a large data volume can be realized by splitting the large data.
The following describes a satellite communication-based big data transmission apparatus according to the present invention, and the following description and the above-described satellite communication-based big data transmission method may be referred to in correspondence with each other.
Fig. 4 is a schematic diagram of a big data transmission device based on satellite communication according to an embodiment of the present invention, and as shown in fig. 4, the big data transmission device based on satellite communication according to the embodiment of the present invention includes:
an obtaining module 401, configured to obtain data to be transmitted;
a determining module 402, configured to determine whether a capacity of data to be transmitted is greater than a preset splitting capacity threshold;
a splitting and sending module 403, configured to split and send data to be transmitted according to a splicing service frame type structure when the capacity of the data to be transmitted is greater than a preset splitting capacity threshold;
and a direct sending module 404, configured to send the data to be transmitted directly according to a common service frame type structure when the capacity of the data to be transmitted is not greater than the preset splitting capacity threshold.
The embodiment of the invention provides a big data transmission device based on satellite communication, which obtains data to be transmitted; judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not; if so, splitting the data to be transmitted according to the splicing service frame type structure and then transmitting the data; otherwise, the data to be transmitted is directly sent according to a common service frame type structure, short message large data volume information transmission can be achieved, type distinction is added, non-spliced service frame type data are directly processed, splitting operation is carried out on the spliced service frame type data, and transmission efficiency is improved.
Fig. 5 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 5: a processor (processor) 510, a communication interface (communications interface) 520, a memory (memory) 530, and a communication bus 540, wherein the processor 510, the communication interface 520, and the memory 530 communicate with each other via the communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform a satellite communication-based big data transfer method comprising: acquiring data to be transmitted; judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not; if so, splitting the data to be transmitted according to the splicing service frame type structure and then transmitting the data; otherwise, the data to be transmitted is directly sent according to the common service frame type structure.
Furthermore, the logic instructions in the memory 530 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
In another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to perform the satellite communication-based big data transmission method provided by the above methods, the method including: acquiring data to be transmitted; judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not; if so, splitting the data to be transmitted according to the splicing service frame type structure and then transmitting the data; otherwise, the data to be transmitted is directly sent according to the common service frame type structure.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A big data transmission method based on satellite communication is characterized by comprising the following steps:
acquiring data to be transmitted;
judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not;
if so, splitting the data to be transmitted according to a splicing service frame type structure and then transmitting the data;
otherwise, the data to be transmitted is directly transmitted according to the common service frame type structure.
2. The satellite communication-based big data transmission method according to claim 1, wherein the splicing service frame type structure comprises:
splicing business frame subtype, frame stream, effective data length and frame effective data, wherein the frame effective data determines data content according to the splicing business frame subtype.
3. The big data transmission method based on satellite communication according to claim 1, wherein the splitting the data to be transmitted according to a splicing service frame type structure and then sending the split data comprises:
determining a packet sequence number and a total packet number according to the data size of the data to be transmitted and/or the idle condition of the satellite channel resources;
splitting the data to be transmitted into a plurality of actual data packets according to the total packet number;
and sending the plurality of actual data packets according to the packet sequence numbers.
4. The satellite communication-based big data transmission method according to claim 3, wherein the actual data packet is filled with 0 for the empty byte when the number of bytes is less than a preset number.
5. The satellite communication-based big data transmission method according to claim 1, wherein after the obtaining of the data to be transmitted, the method further comprises:
judging whether the total capacity of the data to be transmitted exceeds a preset transmission amount upper limit or not;
if yes, the exception is directly returned.
6. The satellite communication-based big data transmission method according to claim 1, further comprising:
after receiving the transmission data frame, judging the type of the transmission data frame;
if the transmission data frame type is a common service frame type, directly carrying out subsequent processing on the received data;
if the transmission data frame type is the splicing service frame type, storing the received transmission data frame into a cache region, sequentially acquiring actual data packets from the cache region according to frame flow and total packet number corresponding to the splicing service frame subtype, and splicing the actual data packets according to packet sequence numbers and then carrying out subsequent processing.
7. The big data transmission method based on satellite communication according to claim 2, wherein the spliced service frame subtype comprises:
splicing the common frame of the service frame and splicing the tail frame of the service frame.
8. A big data transmission apparatus based on satellite communication, comprising:
the acquisition module is used for acquiring data to be transmitted;
the judging module is used for judging whether the capacity of the data to be transmitted is larger than a preset splitting capacity threshold value or not;
the splitting and sending module is used for splitting and sending the data to be transmitted according to a splicing service frame type structure when the capacity of the data to be transmitted is larger than a preset splitting capacity threshold;
and the direct sending module is used for directly sending the data to be transmitted according to a common service frame type structure when the capacity of the data to be transmitted is not more than a preset splitting capacity threshold value.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the satellite communication-based big data transmission method according to any one of claims 1 to 7 when executing the program.
10. A non-transitory computer-readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the satellite communication-based big data transmission method according to any one of claims 1 to 7.
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| CN103278823A (en) * | 2013-04-24 | 2013-09-04 | 深圳北斗位途信息科技有限公司 | Position sharing method and ground processing device based on Beidou satellite |
| CN103415001A (en) * | 2013-08-22 | 2013-11-27 | 国家电网公司 | Device, system and method for message forwarding |
| US20200280873A1 (en) * | 2017-10-31 | 2020-09-03 | Huawei Technologies Co., Ltd. | Communication method, device, and system |
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