CN112738847A - Narrow-band satellite communication system and method - Google Patents
Narrow-band satellite communication system and method Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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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- H—ELECTRICITY
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- H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
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- H—ELECTRICITY
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- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
The application discloses a narrow-band satellite communication system and a method, the application receives first data to be transmitted from a first data transmission interface through a central processing module, the central processing module performs sub-packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted, the central processing module sequentially sends the plurality of first data packets to be transmitted to a plurality of corresponding satellite communication sub-modules according to a preset satellite communication priority sorting table, the corresponding satellite communication sub-modules respectively perform protocol conversion processing on the first data packets to be transmitted to obtain corresponding first target data packets to be transmitted, the corresponding satellite communication sub-modules respectively carry out satellite network transmission on the first target data packets to be transmitted, the data transmission rate of the narrow-band satellite communication system can be greatly improved, and meanwhile, the transmission delay and the transmission interval are greatly reduced.
Description
Technical Field
The invention relates to the field of satellite communication, in particular to a narrow-band satellite communication system and a narrow-band satellite communication method.
Background
With the rapid development of the internet of things, more and more devices have the requirement of network access. However, the existing cellular mobile communication network only covers 5% of the land area on the earth, and a large area such as the sea, desert, mountain area and the like is not covered, so that the internet of things devices such as monitoring devices, large-scale machinery, unmanned planes, unmanned ships, animal monitors and the like in the area can only be networked in a satellite communication mode.
Currently, mainstream satellite communication equipment is mainly divided into narrow-band satellite communication equipment and broadband satellite communication equipment. The narrow-band satellite communication equipment has small volume, light weight, low price and low data transmission rate; the broadband satellite communication equipment has the advantages of large volume, heavy weight, high price and high data transmission rate. Because the internet of things equipment is low in data transmission rate, the narrow-band satellite communication equipment can basically meet the requirements of the internet of things equipment, and meanwhile, compared with the broadband satellite communication equipment, the narrow-band satellite communication equipment has the advantages of being small in size, light in weight, low in price and the like, the narrow-band satellite communication equipment is used for assisting the internet of things equipment in the field of satellite internet of things. At present, the mainstream products comprise a Beidou short message terminal, an iridium satellite data transmission terminal, an Orbcomm data transmission terminal and the like.
However, the devices are still insufficient in the field of satellite internet of things, and the main disadvantages are that the data transmission speed of the devices is too low, the transmission delay is high, and the message transmission interval is large. Therefore, when the user uses the device, the user has to sacrifice the corresponding functions, such as reducing the transmitted data quantity and increasing the message transmission interval. Meanwhile, the application scenes of the narrow-band satellite communication equipment are limited, and the current narrow-band satellite communication equipment cannot be used in occasions with higher data transmission delay and certain requirements on data transmission rate, such as unmanned planes, unmanned ships and the like.
Disclosure of Invention
In order to solve the technical problem, the invention provides a narrowband satellite communication system and a method thereof, which can realize the multiple-level promotion of the data transmission rate of the narrowband satellite communication system and greatly reduce the transmission delay and the transmission interval.
To achieve the above object, the present application provides a narrowband satellite communication system, which may include:
the system comprises a central processing module, a plurality of satellite communication sub-modules, a storage module, a power supply and a first data transmission interface;
the first data transmission interface, the central processing module and the storage module are sequentially connected, and the central processing module is also respectively connected with the plurality of satellite communication sub-modules;
the power supply is respectively connected with the central processing module, the plurality of satellite communication sub-modules and the storage module;
the central processing module is used for receiving first data to be transmitted from a first data transmission interface, performing sub-packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted, and sequentially sending the plurality of first data packets to be transmitted to the corresponding plurality of satellite communication sub-modules according to a preset satellite communication priority sorting table;
the plurality of satellite communication sub-modules are used for performing protocol conversion processing on the plurality of first data packets to be transmitted to obtain a plurality of corresponding first data packets to be transmitted of a first target, and performing satellite network transmission on the plurality of data packets to be transmitted of the first target respectively.
In another aspect, the present application further provides a narrowband satellite communication method, where the method may include:
the central processing module receives first data to be transmitted from the first data transmission interface;
the central processing module performs sub-packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted;
the central processing module sequentially sends the plurality of first data packets to be transmitted to the corresponding plurality of satellite communication sub-modules according to a preset satellite communication priority ranking table;
the corresponding satellite communication sub-modules respectively perform protocol conversion processing on the first data packets to be transmitted to obtain corresponding first target data packets to be transmitted;
and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the first target data packets to be transmitted.
The application has the following beneficial effects:
receiving first data to be transmitted from a first data transmission interface through a central processing module; the central processing module performs sub-packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted; the central processing module sequentially sends the plurality of first data packets to be transmitted to the corresponding plurality of satellite communication sub-modules according to a preset satellite communication priority ranking table; the corresponding satellite communication sub-modules perform protocol conversion processing on the first data packets to be transmitted to obtain corresponding first target data packets to be transmitted; the corresponding satellite communication sub-modules respectively carry out satellite network transmission on the first target data packets to be transmitted, so that the multiple-level improvement of the data transmission rate of the narrow-band satellite communication system can be realized, and the transmission delay and the transmission interval are greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a narrowband satellite communication system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a satellite communication sub-module according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of a narrowband satellite communication method according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of a process for updating a satellite communication priority ranking list according to an embodiment of the present disclosure;
fig. 5 is a schematic flowchart of a narrowband satellite communication method according to another embodiment of the present application;
FIG. 6 is a schematic flow chart illustrating an update of a prioritized list of satellite communications according to another embodiment of the present application;
fig. 7 is a schematic flowchart of a narrowband satellite communication method according to another embodiment of the present application;
fig. 8 is a schematic flowchart of a narrowband satellite communication method according to another embodiment of the present application;
fig. 9 is a schematic flowchart of a narrowband satellite communication method according to another embodiment of the present application;
fig. 10 is a flowchart illustrating a narrowband satellite communication method according to another embodiment of the present application;
fig. 11 is a flowchart illustrating a narrowband satellite communication method for transmitting second data to be transmitted according to another embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In order to implement the technical solution of the present application, so that more engineering workers can easily understand and apply the present application, the working principle of the present application will be further described with reference to specific embodiments.
The following describes an embodiment of a narrowband satellite communication system according to the present application, which may include, as shown in fig. 1:
the system comprises a central processing module 11, a plurality of satellite communication submodules 12, a storage module 13, a power supply 14 and a first data transmission interface 15. The first data transmission interface 15, the central processing module 11 and the storage module 13 are sequentially connected, and the central processing module 11 is further connected with the plurality of satellite communication sub-modules 12 respectively. The power supply 14 is respectively connected with the central processing module 11, the plurality of satellite communication sub-modules 12 and the storage module 14. The central processing module 11 is a core in the narrowband satellite communication system, and is mainly responsible for managing the plurality of satellite communication subunits 12, receiving input data, processing and forwarding the input data, performing man-machine interaction, and the like, and specifically, may be used for receiving first data to be transmitted from the first data transmission interface 15, performing packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted, and sequentially sending the plurality of first data packets to the corresponding plurality of satellite communication subunits 12 according to a preset satellite communication priority sorting table. The satellite communication sub-modules 12 are configured to perform protocol conversion processing on the first to-be-transmitted data packets to obtain corresponding first target to-be-transmitted data packets, and perform satellite network transmission on the first target to-be-transmitted data packets respectively. The first data transmission interface 15 may include an RS485 interface and/or an RS232 interface.
In the embodiment, the central processing module 11 is connected with the plurality of satellite communication submodules 12 respectively, the central processing module 11 is used for performing sub-packet processing on input data, and a plurality of sub-packet data packets to be transmitted are sequentially sent to the corresponding plurality of satellite communication submodules 12 according to the preset satellite communication priority ranking table, the plurality of satellite communication submodules 12 perform protocol conversion processing on the corresponding first data packets to be transmitted to obtain a plurality of corresponding first target data packets to be transmitted, and perform satellite network transmission on the plurality of first target data packets to be transmitted respectively, so that the data transmission rate of the narrow-band satellite communication system can be greatly improved, and meanwhile, the transmission delay and the transmission interval are greatly reduced.
In some embodiments, as shown in fig. 2, each satellite communication sub-module 12 may include:
In some embodiments, the satellite communication sub-module may employ a satellite communication module having a data transmission rate of 9.6 kbps. The number of the plurality of satellite communication submodules is not more than 5. The number of the satellite communication submodules can be adjusted according to the actual application scene, and correspondingly, after the satellite communication submodules are adjusted, the satellite communication priority ranking list is updated, so that the satellite communication priority ranking list can be continuously used.
Specifically, a plurality of satellite communication sub-modules with the number not more than 5 and the data transmission rate of 9.6kbps are adopted, so that the satellite network transmission rate of data in narrow-band satellite communication can be greatly improved under the condition of ensuring that the volume, weight and cost of equipment are not obviously increased.
Based on the foregoing narrowband satellite communication system in any embodiment to perform narrowband satellite communication, another aspect of the present application further provides an embodiment of a narrowband satellite communication method, as shown in fig. 3, the method may include:
s101: the central processing module receives first data to be transmitted from the first data transmission interface.
Specifically, the central processing module is connected with external equipment, such as an upper computer, a testing machine and the like, through the first data transmission interface, and a man-machine interaction function can be achieved. The first data to be transmitted may be a long segment message.
S103: and the central processing module performs packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted.
Specifically, the central processing module may perform packetization on the first to-be-transmitted data according to a preset packetization condition to obtain a plurality of first to-be-transmitted data packets, for example, packetizing the first to-be-transmitted data according to a packetization condition such as a delimiter or a fixed length.
S105: and the central processing module sequentially sends a plurality of first data packets to be transmitted to the corresponding satellite communication submodules according to a preset satellite communication priority ranking table.
Specifically, the satellite communication priority ranking table is a sequence table for ranking a plurality of satellite communication submodules capable of performing satellite communication, and the satellite communication submodule ranked in front will receive the first data packet to be transmitted first. When the number of the plurality of first data packets to be transmitted is larger than that of the satellite communication submodules, the central processing unit firstly issues the first data packets to be transmitted to all the satellite communication submodules, and when the satellite communication submodule receiving the first data packets to be transmitted transmits the corresponding first data packets to be transmitted through the satellite network, the satellite communication submodules reenter the satellite communication priority ranking list for queuing. And when the number of the first data packets to be transmitted is not greater than that of the satellite communication sub-modules, the central processing module sequentially sends the first data packets to be transmitted to the corresponding satellite communication sub-modules according to a preset satellite communication priority ranking list.
S107: and the corresponding satellite communication sub-modules respectively perform protocol conversion processing on the first data packets to be transmitted to obtain corresponding first target data packets to be transmitted.
Specifically, each satellite communication submodule receives a first data packet to be transmitted from the central processing module from the serial port, and then the microcontroller performs protocol conversion processing on the first data packet to be transmitted to obtain a corresponding first target data packet to be transmitted. The microcontroller performs Protocol conversion on the first data packet to be transmitted, can optimize a User Datagram Protocol (UDP) Protocol, is used as an equipment network application layer Protocol, and can improve the ratio of the effective load of the first target data packet to be transmitted while reducing the byte length occupied by the Protocol, thereby improving the data transmission rate.
S109: and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the first target data packets to be transmitted.
In the embodiment, the central processing module receives the first data to be transmitted from the first data transmission interface, the central processing module performs sub-packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted, the central processing module sequentially sends the plurality of first data packets to be transmitted to the corresponding plurality of satellite communication submodules according to the preset satellite communication priority ranking table, the corresponding plurality of satellite communication submodules perform protocol conversion processing on the plurality of first data packets to be transmitted respectively to obtain a plurality of corresponding first data packets to be transmitted, and the corresponding plurality of satellite communication submodules perform satellite network transmission on the plurality of first data packets to be transmitted respectively.
In some embodiments, as shown in fig. 4, after the satellite network transmission is performed on the multiple data packets to be transmitted by the multiple first targets respectively by the corresponding multiple satellite communication sub-modules, the method may further include:
s211: when any satellite communication submodule in the corresponding plurality of satellite communication submodules completes satellite network transmission of the first target data packet to be transmitted, any satellite communication submodule sends transmission success result data to the central processing module, and the transmission success result data comprises the identity of the successfully transmitted satellite communication submodule.
Specifically, the satellite communication sub-module can have three states, namely a first state in data transmission and a second state in queue idle. When any satellite communication submodule sends the result data of successful transmission to the central processing module, the satellite communication submodule can be released to the sorting vacancy of the satellite communication priority sorting list.
S213: and the central processing module updates the satellite communication priority ranking list based on the identity serial number of the successfully transmitted satellite communication submodule to obtain the updated satellite communication priority ranking list.
Specifically, the identity of the satellite communication sub-module that completes transmission of the first target data packet to be transmitted is updated to the last bit of the satellite communication priority ranking table, so that the central processing module continues to send the first target data packet to be transmitted to the satellite communication sub-module that is the first in the ranking of the updated satellite communication priority ranking table when all the first target data packets to be transmitted are not transmitted. The satellite communication priority ranking list can only comprise the satellite communication sub-modules in the queuing idle state, and when the satellite communication priority ranking list only comprises the satellite communication sub-modules in the queuing idle state, the central processing module selects the satellite communication sub-module with the highest priority according to the priority sequence in the satellite communication priority ranking list to transmit the first target data packet to be transmitted. The satellite communication priority ranking list can also comprise a queuing idle state, a data sending state and an off-line state satellite communication submodule, when one satellite communication submodule completes the transmission of a first target data packet to be transmitted, the identification of the satellite communication submodule is ranked to the last bit in the queuing idle state, and the identification of all the satellite communication submodules in the data sending state and the off-line state is after the identification ranking of the satellite communication submodules in the queuing idle state.
After the satellite communication priority ranking list is updated, the central processing module is repeated to sequentially send a plurality of first data packets to be transmitted to the corresponding satellite communication sub-modules according to the updated satellite communication priority ranking list, the corresponding satellite communication sub-modules respectively perform protocol conversion processing on the first data packets to be transmitted to obtain a plurality of corresponding first target data packets to be transmitted, and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the first data packets to be transmitted until satellite network transmission is completed on all the first data packets to be transmitted.
In the above embodiment, as shown in fig. 5, after the central processing module obtains the updated satellite communication priority ranking table, the method may further include:
s215: and the central processing module receives second data to be transmitted from the first data transmission interface.
Specifically, the second data to be transmitted refers to the long-segment message data received after the central processing module receives the first data to be transmitted.
S217: and the central processing module performs packet processing on the second data to be transmitted to obtain a plurality of second data packets to be transmitted.
S219: and the central processing module sequentially sends a plurality of second data packets to be transmitted to the corresponding satellite communication submodules according to the updated satellite communication priority ranking table.
Specifically, the satellite communication priority ranking list may only include the satellite communication sub-modules in the queuing idle state, and when the satellite communication priority ranking list only includes the satellite communication sub-modules in the queuing idle state, the central processing module selects the satellite communication sub-module with the highest priority according to the priority order in the satellite communication priority ranking list, and transmits the first target data packet to be transmitted. The satellite communication priority ranking list can also comprise a queuing idle state, a data sending state and an off-line state satellite communication submodule, when one satellite communication submodule completes the transmission of a first target data packet to be transmitted, the identification of the satellite communication submodule is ranked to the last bit in the queuing idle state, and the identification of all the satellite communication submodules in the data sending state and the off-line state is after the identification ranking of the satellite communication submodules in the queuing idle state.
S221: and the corresponding satellite communication sub-modules perform protocol conversion processing on the second data packets to be transmitted to obtain corresponding second target data packets to be transmitted.
S223: and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the second target data packets to be transmitted.
In some embodiments, as shown in fig. 6, before the central processing module sequentially sends the first to-be-transmitted data packets to the corresponding satellite communication submodules according to the preset satellite communication priority ranking table, the central processing module may first detect the network connection of the satellite communication submodules, and specifically, the method may include:
s3041: and the central processing module sends satellite network connection instructions to the plurality of satellite communication sub-modules.
S3043: and based on the satellite network connection instruction, the plurality of satellite communication sub-modules respectively judge whether the satellite network connection is successful.
Specifically, after the central processing module sends a satellite network connection instruction to the satellite communication submodule, the satellite communication submodule can periodically send a heartbeat packet to the central processing module when the satellite communication submodule can normally connect with the satellite network. The central processing module determines whether the satellite communication submodule is successfully connected with the satellite network or not by whether the heartbeat packet is received or not.
S3045: if not, the corresponding satellite communication sub-module sends an off-line state updating instruction to the central processing module.
Specifically, the offline state updating command may include an identity of the offline satellite communication sub-module.
S3047: and the central processing module updates the satellite communication priority ranking list based on the identity of the offline satellite communication submodule to obtain the updated satellite communication priority ranking list.
Specifically, the queuing idle identification of the updated satellite communication priority ranking table does not contain the identification of the offline satellite communication sub-module.
In this embodiment, the satellite communication sub-module may have three states, which are a first state during data transmission, a second state in a queue idle state, and a third state offline. And determining whether the satellite communication submodule is in an off-line state by judging whether the satellite network of the satellite communication submodule is successfully connected or not, so as to update the satellite communication priority ranking list.
In the above embodiment, as shown in fig. 7, after the central processing module obtains the updated satellite communication priority ranking table, the method may further include:
s315: and the central processing module receives second data to be transmitted from the first data transmission interface.
S317: and the central processing module performs packet processing on the second data to be transmitted to obtain a plurality of second data packets to be transmitted.
S319: and the central processing module sequentially sends a plurality of second data packets to be transmitted to the corresponding satellite communication submodules according to the updated satellite communication priority ranking table.
S321: and the corresponding satellite communication sub-modules perform protocol conversion processing on the second data packets to be transmitted to obtain corresponding second target data packets to be transmitted.
S323: and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the second target data packets to be transmitted.
In some embodiments, as shown in fig. 8, after the central processing module sequentially sends the first to-be-transmitted data packets to the corresponding satellite communication submodules according to the preset satellite communication priority ranking table, the method may further include:
s406: and the central processing module updates the satellite communication priority ranking list based on the identity marks of the sending objects of the first data packets to be transmitted to obtain the updated satellite communication priority ranking list.
Specifically, the satellite communication sub-module may have three states, which are a first state during data transmission, a second state in a queue idle state, and a third state in an offline state. The satellite communication priority ranking table is updated based on the identity marks of the sending objects of the first data packets to be transmitted, the satellite communication sub-modules which are sending data can be identified, and the satellite communication sub-modules in the data sending state are kicked out of the queuing queue.
S408: and the central processing module sequentially sends the remaining first data packets to be transmitted to the corresponding satellite communication submodules according to the updated satellite communication priority ranking table.
In the above embodiment, after the central processing module obtains the updated satellite communication priority ranking table in fig. 9, the method may further include:
s411: and the central processing module receives second data to be transmitted from the first data transmission interface.
S413: and the central processing module performs packet processing on the second data to be transmitted to obtain a plurality of second data packets to be transmitted.
S415: and the central processing module sequentially sends a plurality of second data packets to be transmitted to the corresponding satellite communication submodules according to the updated satellite communication priority ranking table.
S417: and the corresponding satellite communication sub-modules perform protocol conversion processing on the second data packets to be transmitted to obtain corresponding second target data packets to be transmitted.
S419: and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the second target data packets to be transmitted.
In some embodiments, as shown in fig. 10, after the plurality of satellite communication sub-modules each determine whether the connection with the satellite network is successful based on the satellite network connection command, the method may further include:
s5044: if the satellite communication sub-module is unsuccessful, the corresponding satellite communication sub-module repeats the connection with the satellite network for preset times.
S5046: and if the connection fails, the corresponding satellite communication sub-modules send offline state updating instructions to the central processing module.
Specifically, the offline state updating command includes an identity of the offline satellite communication sub-module.
S5048: and the central processing module updates the satellite communication priority ranking list based on the identity of the offline satellite communication submodule to obtain the updated satellite communication priority ranking list.
In the embodiment, by repeating the connection of the satellite communication submodule and the satellite network for many times, the false alarm of the off-line state can be reduced, and the processing efficiency of satellite communication is improved.
In the above embodiment, as shown in fig. 11, after the central processing module sends all the first data packets to be transmitted to the corresponding satellite communication sub-modules, the method may further include:
s515: and the central processing module receives second data to be transmitted from the first data transmission interface.
S517: and the central processing module performs packet processing on the second data to be transmitted to obtain a plurality of second data packets to be transmitted.
S519: and the central processing module sequentially sends a plurality of second data packets to be transmitted to the corresponding satellite communication submodules according to the updated satellite communication priority ranking table.
S521: and the corresponding satellite communication sub-modules perform protocol conversion processing on the second data packets to be transmitted to obtain corresponding second target data packets to be transmitted.
S523: and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the second target data packets to be transmitted.
In the embodiment, the central processing module receives the first data to be transmitted from the first data transmission interface; the central processing module performs sub-packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted; the central processing module sequentially sends the plurality of first data packets to be transmitted to the corresponding plurality of satellite communication sub-modules according to a preset satellite communication priority ranking table; the corresponding satellite communication sub-modules perform protocol conversion processing on the first data packets to be transmitted to obtain corresponding first target data packets to be transmitted; and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the first target data packets to be transmitted. After the satellite network transmission of the first data to be transmitted is finished, the central processing module receives second data to be transmitted from the first data transmission interface, the central processing module performs packet processing on the second data to be transmitted to obtain a plurality of second data packets to be transmitted, the central processing module sequentially sends a plurality of second data packets to be transmitted to a plurality of corresponding satellite communication submodules according to an updated satellite communication priority sorting table, the plurality of corresponding satellite communication submodules perform protocol conversion processing on the plurality of second data packets to be transmitted to obtain a plurality of corresponding second target data packets to be transmitted, the plurality of corresponding satellite communication submodules perform satellite network transmission on the plurality of second target data packets to be transmitted respectively, wherein the second data to be transmitted is the data to be transmitted at a moment after the first data to be transmitted, when the plurality of satellite communication submodules are used to complete the satellite network transmission of the data to be transmitted at a previous moment, and continuously performing sub-packet processing on the data to be transmitted at the next moment by using the central processing module so that the plurality of satellite communication sub-modules perform split-flow satellite network transmission on the data to be transmitted at the next moment, thereby achieving cyclic split-flow satellite network transmission, realizing multiple-level promotion of data transmission rate of the narrow-band satellite communication system, and greatly reducing transmission delay and transmission interval.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that although embodiments described herein include some features included in other embodiments, not other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
The present invention may also be embodied as apparatus or system programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website, provided on a carrier signal, or provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps or the like not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several systems, several of these systems may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering and these words may be interpreted as names.
Claims (10)
1. A narrowband satellite communications system, the system comprising:
the system comprises a central processing module, a plurality of satellite communication sub-modules, a storage module, a power supply and a first data transmission interface;
the first data transmission interface, the central processing module and the storage module are sequentially connected, and the central processing module is also respectively connected with the plurality of satellite communication sub-modules;
the power supply is respectively connected with the central processing module, the plurality of satellite communication sub-modules and the storage module;
the central processing module is used for receiving first data to be transmitted from a first data transmission interface, performing sub-packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted, and sequentially sending the plurality of first data packets to be transmitted to the corresponding plurality of satellite communication sub-modules according to a preset satellite communication priority sorting table;
the plurality of satellite communication sub-modules are used for performing protocol conversion processing on the plurality of first data packets to be transmitted to obtain a plurality of corresponding first data packets to be transmitted of a first target, and performing satellite network transmission on the plurality of data packets to be transmitted of the first target respectively.
2. The system of claim 1, wherein each of the plurality of satellite communication submodules comprises:
the system comprises a serial port, a power interface, a microcontroller and a satellite communication unit;
the microcontroller is respectively connected with the serial port, the power interface and the satellite communication unit, and the satellite communication unit is also connected with the power interface;
the serial port is used for data interaction between the microcontroller and the central processing module;
the power interface is used for being connected with the power supply;
the microcontroller is used for carrying out protocol conversion processing on the plurality of first data packets to be transmitted to obtain a plurality of corresponding first target data packets to be transmitted;
and the satellite communication unit is used for carrying out satellite network transmission on the data packets to be transmitted of the targets.
3. The system of claim 1, wherein the plurality of satellite communication submodules each have a data transmission rate of 9.6 kilobits per second.
4. The system of claim 3, wherein the number of said plurality of satellite communication submodules is no greater than 5.
5. A narrowband satellite communication method, wherein narrowband satellite communication is performed based on the system of any one of claims 1 to 4, the method comprising:
the central processing module receives first data to be transmitted from the first data transmission interface;
the central processing module performs sub-packet processing on the first data to be transmitted to obtain a plurality of first data packets to be transmitted;
the central processing module sequentially sends the plurality of first data packets to be transmitted to the corresponding plurality of satellite communication sub-modules according to a preset satellite communication priority ranking table;
the corresponding satellite communication sub-modules perform protocol conversion processing on the first data packets to be transmitted to obtain corresponding first target data packets to be transmitted;
and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the first target data packets to be transmitted.
6. The method of claim 5, wherein after the satellite network transmission is performed by the corresponding plurality of satellite communication sub-modules on the plurality of first target data packets to be transmitted, the method further comprises:
when any satellite communication submodule in the plurality of corresponding satellite communication submodules completes satellite network transmission of a first target data packet to be transmitted, any satellite communication submodule sends transmission success result data to the central processing module, wherein the transmission success result data comprises an identity of the successfully transmitted satellite communication submodule;
and the central processing module updates the satellite communication priority ranking table based on the identity serial number of the successfully transmitted satellite communication submodule to obtain an updated satellite communication priority ranking table.
7. The method of claim 5, wherein before the central processing module sequentially sends the first to-be-transmitted data packets to the corresponding satellite communication submodules according to a preset satellite communication priority ranking table, the method further comprises:
the central processing module sends satellite network connection instructions to the plurality of satellite communication sub-modules;
based on the satellite network connection instruction, the plurality of satellite communication sub-modules respectively judge whether the satellite network connection is successful;
if the satellite communication sub-modules are not successful, the corresponding satellite communication sub-modules send offline state updating instructions to the central processing module, and the offline state updating instructions comprise the identity marks of the offline satellite communication sub-modules;
and the central processing module updates the satellite communication priority ranking table based on the identity of the off-line satellite communication submodule to obtain the updated satellite communication priority ranking table.
8. The method of claim 5, wherein after the central processing module sequentially sends the first to-be-transmitted data packets to the corresponding satellite communication submodules according to a preset satellite communication priority ranking table, the method further comprises:
the central processing module updates the satellite communication priority ranking table based on the identity marks of the sending objects of the first data packets to be transmitted to obtain an updated satellite communication priority ranking table;
and the central processing module sequentially sends the remaining first data packets to be transmitted to the corresponding satellite communication submodules according to the updated satellite communication priority ranking table.
9. The method of claim 7, wherein after the plurality of satellite communication submodules each determine whether the satellite network connection is successful based on the satellite network connection command, the method further comprises:
if the satellite communication sub-module is unsuccessful, the corresponding satellite communication sub-module repeats the connection with the satellite network for preset times;
if the connection fails, the corresponding satellite communication sub-modules send offline state updating instructions to the central processing module, wherein the offline state updating instructions comprise the identity identification of the offline satellite communication sub-modules;
and the central processing module updates the satellite communication priority ranking table based on the identity of the off-line satellite communication submodule to obtain the updated satellite communication priority ranking table.
10. The method according to any one of claims 6-9, further comprising:
the central processing module sequentially sends the plurality of second data packets to be transmitted to the corresponding plurality of satellite communication sub-modules according to the updated satellite communication priority ranking table;
the corresponding satellite communication sub-modules perform protocol conversion processing on the second data packets to be transmitted to obtain corresponding second target data packets to be transmitted;
and the corresponding satellite communication sub-modules respectively perform satellite network transmission on the second target data packets to be transmitted.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667904A (en) * | 2023-05-15 | 2023-08-29 | 捷信（浙江）通信技术有限公司 | Communication system based on satellite narrowband transmission and data self-adaptation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032391A1 (en) * | 2001-08-09 | 2003-02-13 | Craig Schweinhart | Low latency handling of transmission control protocol messages in a broadband satellite communications system |
| CN103840924A (en) * | 2014-02-27 | 2014-06-04 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Oceanic autonomous observation platform data transmission method based on Beidou communication |
| CN205304865U (en) * | 2016-01-12 | 2016-06-08 | 上海汉佑电子科技有限公司 | Multichannel big dipper satellite changes ethernet communication device |
| CN107682069A (en) * | 2017-09-19 | 2018-02-09 | 安徽继远软件有限公司 | A kind of power distribution communication device and its communication means based on the Big Dipper |
| CN111510871A (en) * | 2020-03-16 | 2020-08-07 | 浙江时空道宇科技有限公司 | Beidou satellite capacity expansion communication method, electronic equipment and storage medium |
| CN111556051A (en) * | 2020-04-26 | 2020-08-18 | 上海航天测控通信研究所 | High-speed space network data protocol conversion and multiplexing device based on FPGA |
-
2020
- 2020-12-24 CN CN202011573225.8A patent/CN112738847A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032391A1 (en) * | 2001-08-09 | 2003-02-13 | Craig Schweinhart | Low latency handling of transmission control protocol messages in a broadband satellite communications system |
| CN103840924A (en) * | 2014-02-27 | 2014-06-04 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Oceanic autonomous observation platform data transmission method based on Beidou communication |
| CN205304865U (en) * | 2016-01-12 | 2016-06-08 | 上海汉佑电子科技有限公司 | Multichannel big dipper satellite changes ethernet communication device |
| CN107682069A (en) * | 2017-09-19 | 2018-02-09 | 安徽继远软件有限公司 | A kind of power distribution communication device and its communication means based on the Big Dipper |
| CN111510871A (en) * | 2020-03-16 | 2020-08-07 | 浙江时空道宇科技有限公司 | Beidou satellite capacity expansion communication method, electronic equipment and storage medium |
| CN111556051A (en) * | 2020-04-26 | 2020-08-18 | 上海航天测控通信研究所 | High-speed space network data protocol conversion and multiplexing device based on FPGA |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667904A (en) * | 2023-05-15 | 2023-08-29 | 捷信（浙江）通信技术有限公司 | Communication system based on satellite narrowband transmission and data self-adaptation |
| CN116667904B (en) * | 2023-05-15 | 2024-02-13 | 捷信（浙江）通信技术有限公司 | Communication system based on satellite narrowband transmission and data self-adaptation |
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