CN117768012A - Transmission method and device based on space base - Google Patents
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Abstract
The application discloses a transmission method and device based on a space base, and belongs to the field of wireless data transmission. The method comprises the following steps: the narrowband communication module of the Internet of things receives data information and sends the data information to the control processing module; the control processing module receives the data information, judges whether the data information belongs to the narrow-band communication data of the Internet of things, and if the data information belongs to the narrow-band communication data of the Internet of things, converts the data format of the data information into target day-based data information supporting the data format of day-based communication through a day-based communication coding rule and sends the target day-based data information to the day-based communication module; and the space-based communication module receives the target space-based data information and transmits the target space-based data information to the space-based platform, so that the base platform transmits the target space-based data information to the data receiving and processing terminal for processing. The method and the device realize the technical effects of high-efficiency and accurate transmission of the narrowband communication data information of the Internet of things and cost reduction.
Description
Technical Field
the application belongs to the field of wireless data transmission, and particularly relates to a transmission method and device based on a space base.
Background
In a field remote environment, which is generally not covered by a public network base station, for terminal information sensing equipment with small information quantity and low frequency transmission, data transmission is basically carried out in a mode of narrow-band communication of the Internet of things. The transmission method is that the terminal information sensing equipment sends data to the narrow-band communication gateway of the Internet of things through the narrow-band communication link of the Internet of things, and the narrow-band communication gateway of the Internet of things forwards the data to the information processing receiving terminal through the narrow-band communication link of the Internet of things.
Because of the limitations of the narrowband communication technology of the internet of things, the communication distance of the information transmission mode is relatively short, and if the narrowband communication gateway of the internet of things is relatively far away from the information processing receiving terminal, real-time effective information transmission cannot be performed.
at present, a plurality of narrow-band communication gateways of the internet of things are built between a terminal information sensing terminal and an information processing receiving terminal to realize information forwarding, and the method is high in cost and poor in maneuverability.
based on the problems, the application provides a transmission method and device based on a space base and electronic equipment.
Disclosure of Invention
In order to solve the defects in the prior art, the application provides a transmission method, a transmission device and electronic equipment based on a space base, and solves the problems of distance limitation and labor cost when information transmission is carried out by using a narrow-band communication gateway of the Internet of things in the prior art.
The technical effects to be achieved by the application are realized by the following scheme:
in a first aspect, the present application provides a transmission method based on a space base, including:
s1, receiving data information sent by a plurality of terminals by an Internet of things narrowband communication module, and sending the data information to a control processing module;
S2, the control processing module receives the data information and judges whether the data information belongs to the narrow-band communication data of the Internet of things, if the data information belongs to the narrow-band communication data of the Internet of things, the data format of the data information is converted into target day-based data information of a data format supporting day-based communication through a day-based communication coding rule, and after the target day-based data information is obtained, the target day-based data information is sent to a day-based communication module;
And S3, the space-based communication module receives the target space-based data information and sends the target space-based data information to a space-based platform, so that the space-based platform sends the target space-based data information to a data receiving and processing terminal for processing.
In some embodiments, the determining whether the data information belongs to narrowband communication data of the internet of things includes:
If the data information is sent out through the narrowband communication link of the Internet of things, the data information belongs to narrowband communication data of the Internet of things; or alternatively
and if the data information is received from the terminal information sensing terminal, the data information belongs to the narrowband communication data of the Internet of things.
In some embodiments, the converting the data format of the data information into the target day-based data information supporting the data format of the day-based communication through the day-based communication coding rule includes:
judging the integrity of the data information through CRC redundancy check;
And if the data information is complete, converting the data format of the data information into target day-based data information of a data format supporting the day-based communication through a day-based communication coding rule.
In some embodiments, prior to encoding the data information, comprising:
Decoding the data information according to the narrowband communication decoding rule of the Internet of things to obtain decoded source data information, wherein the decoding mode comprises the following steps: lora technology.
in some embodiments, converting the source data information into target day-based data information in a data format supporting day-based communications by day-based communication encoding rules comprises:
Performing hamming coding on the source data information;
Whitening the source data information after hamming coding, and carrying out diagonal interleaving and gray coding on the source data information after whitening;
and performing chirp modulation on the source data information subjected to Gray coding to obtain target day-base data information.
in some embodiments, the control processing module monitors external data in an external interrupt mode, when data information arrives, the control processing module jumps out of the main program to perform an interrupt service function, and stores the received data information into the first-in first-out buffer.
In a second aspect, the present application provides a space-based transmission device, where the transmission device includes a power module, an internet of things narrowband communication module, a space-based communication module, and a control processing module, where
The power module is used for supplying power to the narrowband communication module of the Internet of things, the space-based communication module and the control processing module;
the narrow-band communication module of the Internet of things is used for receiving data information sent by a plurality of terminals and sending the data information to the control processing module;
The control processing module is used for receiving the data information, judging whether the data information belongs to the narrowband communication data of the Internet of things, if the data information belongs to the narrowband communication data of the Internet of things, converting the data format of the data information into target day-based data information of a data format supporting day-based communication through a day-based communication coding rule, and sending the target day-based data information to the day-based communication module after obtaining the target day-based data information;
The space-based communication module is used for receiving the target space-based data information and sending the target space-based data information to a space-based platform so that the space-based platform sends the target space-based data information to a data receiving and processing terminal for processing.
In some embodiments, the determining whether the data information belongs to narrowband communication data of the internet of things includes:
If the data information is sent out through the narrowband communication link of the Internet of things, the data information belongs to narrowband communication data of the Internet of things; or alternatively
and if the data information is received from the terminal information sensing terminal, the data information belongs to the narrowband communication data of the Internet of things.
In a third aspect, the present application provides 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 any one of the preceding claims when the computer program is executed.
In a fourth aspect, the present application provides a computer readable storage medium storing one or more programs executable by one or more processors to implement the method of any of the preceding claims.
The embodiment of the application provides a transmission method based on a space base, which is used for forwarding data information in a narrow-band communication network of the Internet of things through a space base communication module, can effectively solve the problems of distance limitation and labor cost when only using narrow-band communication of the Internet of things to transmit the data information in the prior art, and realizes the technical effects of high-efficiency and accurate transmission of the narrow-band communication data information of the Internet of things and cost reduction.
Drawings
In order to more clearly illustrate the embodiments of the application or the prior art solutions, the drawings which are used in the description of the embodiments or the prior art will be briefly described below, it being obvious that the drawings in the description below are only some of the embodiments described in the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for transmitting based on space base according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a space-based transmission device according to an embodiment of the application;
Fig. 3 is a schematic block diagram of an electronic device in an embodiment of the application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present application should be taken in a general sense as understood by one of ordinary skill in the art to which the present application belongs. The use of the terms "first," "second," and the like in one or more embodiments of the present application does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In the related art, the space-based refers to taking the communication load of a satellite in the sky as a base station, for example, the communication load of a low-orbit satellite can be used; space-based communication refers to a means for providing communication services for ground users by taking space-based satellite communication load as a base station. The space-based satellite communication refers to a communication mode for realizing information transmission through satellites, and the communication principle mainly uses satellites between any two points of the earth to transmit signals. When the information is transmitted from the ground, it is transmitted to another ground location via a satellite. Information can be transmitted between satellites without being affected by the ground environment, and obstacles and distances can be overcome. The reliability and the transmission speed of communication can be greatly improved by the space-based communication technology, and the safety and confidentiality of information transmission are ensured.
the core idea of the transmission method based on the space base provided by the application is as follows:
And judging whether the data information transmitted by the narrow-band communication link of the Internet of things is received or not, if the data information transmitted by the narrow-band communication link of the Internet of things is received, converting the data format of the data information into the data format of the data format supporting the space-based communication through a space-based communication coding rule, after the data format supporting the space-based communication is obtained, transmitting the space-based data information to a space-based communication module, transmitting the space-based data information to a space-based platform through the space-based communication module, and then forwarding the space-based data information to a data receiving and processing terminal for processing by the space-based platform.
various non-limiting embodiments of the present application are described in detail below with reference to the attached drawing figures.
first, referring to fig. 1, a detailed description is given of a transmission method based on a space base according to the present application, and this embodiment provides a transmission method based on a space base, including:
s1, receiving data information sent by a plurality of terminals by an Internet of things narrowband communication module, and sending the data information to a control processing module;
S2, the control processing module receives the data information and judges whether the data information belongs to the narrow-band communication data of the Internet of things, if the data information belongs to the narrow-band communication data of the Internet of things, the data format of the data information is converted into target day-based data information of a data format supporting day-based communication through a day-based communication coding rule, and after the target day-based data information is obtained, the target day-based data information is sent to a day-based communication module;
And S3, the space-based communication module receives the target space-based data information and sends the target space-based data information to a space-based platform, so that the space-based platform sends the target space-based data information to a data receiving and processing terminal for processing.
According to the technical scheme, the data format of the narrow-band communication data of the Internet of things is converted into the data format of the space-based Internet of things, so that the data information after the data format conversion is sent to the space-based platform through the space-based communication module and then forwarded to the data receiving and processing terminal.
specifically, the terminal (e.g., terminal information aware terminal) sends the data information to the internet of things narrowband communication module through the internet of things narrowband communication link.
the narrow-band communication link of the Internet of things comprises, but is not limited to, a Lora technology, which is a wireless communication technology special for long distance and low power consumption and can be used for transmitting information such as data and voice; the Lora technology can spread data over a longer range than WiFi, bluetooth or ZigBee technologies.
And the data information is sent to the control processing module after the data information is received by the narrow-band communication module of the Internet of things, and the control processing module judges the data information.
The data forwarding mode of the narrowband communication module of the internet of things is set to be a transparent transmission mode, wherein the transparent transmission mode refers to that the module transmits a data packet to target equipment (referred to as a control processing module herein) through a transmission protocol without any analysis and processing of the data, and the transparent transmission mode has the main advantages of fast data transmission and high efficiency, and meanwhile, the related problems of delay and data loss are avoided.
in some embodiments, the control processing module determines whether the data information belongs to narrowband communication data of the internet of things, including:
If the data information is sent out through the narrowband communication link of the Internet of things, the data information belongs to narrowband communication data of the Internet of things; or alternatively
and if the data information is received from the terminal information sensing terminal, the data information belongs to the narrowband communication data of the Internet of things.
In some embodiments, the converting the data format of the data information into the target day-based data information supporting the data format of the day-based communication through the day-based communication coding rule includes:
judging the integrity of the data information through CRC redundancy check;
And if the data information is complete, converting the data format of the data information into target day-based data information of a data format supporting the day-based communication through a day-based communication coding rule.
specifically, the control processing module judges and analyzes the received data and judges whether the data information is complete and accurate;
The control processing module is in a data monitoring state, monitors external data in an external interrupt mode, jumps out of the main program to perform an interrupt service function when the data arrives, stores the received data into a first-in first-out buffer (FIFO), and ends interrupt and returns to the main program.
if the control processing module detects that the buffer is not empty in the main program, the data information arrives, the data type is judged through the data frame head, and the data is delivered to the receiving processing function of the current protocol to perform the operations of frame decomposition, verification, response and the like.
The integrity of the data information is achieved through data verification. The data frame contains data check bits, which are used for ensuring the integrity of the data in the data transmission process, and a formulated algorithm is adopted to calculate the data information so as to obtain a check value. When the control processing module receives the data information, the same checking algorithm is adopted to calculate the data information, if the calculation result is consistent with the received checking value, the data information is correctly checked, the frame data can be used, and if the calculation result is inconsistent with the received checking value, the frame data is lost, the error occurs in the transmission process.
the integrity of the information in this example may be achieved by a CRC redundancy check, also known as cyclic redundancy check, which is a calculation method that checks the accuracy of the digital transmission over the communication link; each terminal uses a certain formula to calculate a value of the information contained in the transmitted data information, and after attaching the value to the transmitted data information, the control processing module performs the same calculation on the unified data, so that the same result should be obtained. If the two CRC results do not agree, indicating an error in transmission, the control processing module may require the sender device to retransmit the data information.
In some embodiments, prior to encoding the data information, comprising:
Decoding the data information according to the narrowband communication decoding rule of the Internet of things to obtain decoded source data information, wherein the decoding mode comprises the following steps: lora technology.
in some embodiments, converting the source data information into target day-based data information in a data format supporting day-based communications by day-based communication encoding rules comprises:
Performing hamming coding on the source data information;
Whitening the source data information after hamming coding, and carrying out diagonal interleaving and gray coding on the source data information after whitening;
and performing chirp modulation on the source data information subjected to Gray coding to obtain target day-base data information.
specifically, the control processing module judges that received data is complete, then decodes the received data according to the narrowband communication decoding rule of the Internet of things, and acquires decoded source data information;
the internet of things narrowband communication decoding rule comprises a Lora technology.
The Lora technology is a low-power wide area network technology, which is a complete set of network protocols and packet format specifications. The Lora network protocol is divided into a physical layer and a data link layer, wherein the physical layer defines a signal transmission mode and communication modulation and demodulation, and the data link layer is responsible for data transmission and management.
illustratively, the decoded source data information is encoded according to a space-based communication encoding rule to obtain space-based communication data.
The space-based communication coding rule is based on a linear spread spectrum modulation technology, chirp pulse with linear frequency modulation is adopted to transmit information, and the expression of a chirp waveform c (t) is as follows:
,/>，
In the middle ofFor the chirp phase, T is the sweep period, then the chirp instantaneous frequency is:
，
For chirp with chirping, then f (t) is defined as:
，
Wherein fcRepresenting the carrier center frequency of the carrier wave,Denoted as 1 is the corresponding up-chirp, and-1 is the corresponding down-chirp, B denotes the modulation bandwidth, and T denotes the sweep period.
For source data information, hamming encoding (the header adopts a fixed code rate of 4/8, the data code rate is 4/5, 4/6, 4/7 and 4/8 are optional) is firstly carried out, then sequence whitening is carried out, linear spread spectrum modulation is carried out after diagonal interleaving and Gray encoding, and the initial frequency point of a linear frequency modulation signal is determined by the output ratio after Gray encoding.
specifically, standard Hamming code is taken as female parent, bit cutting is carried out on the standard Hamming code by adopting code rate of 4/5 and 4/6 (only having error detection capability and no error correction capability), and the whitened bit sequence b is added first0,b1,b2,b3,…,bB-1Grouping is performed, with each group of 4 bits, and then hamming encoding is performed on each group of bit sequences according to different code rates, with B referring to constants, e.g., b=0, 1,2 ….
Let b be the bit sequence to be encoded4i,b4i+1,b4i+2,b4i+3The K bits after encoding are CKi,CKi+1,CKi+2, … ,CKi+K-1the code rate is 4/K, K=5, 6,7,8, and the mapping relation can be expressed as
where G is the coding matrix and i is a constant, e.g., i=0, 1,2 ….
In order to cope with continuous errors, the chirp signal adopts diagonal interleaving, combines Gray codes and Hamming codes, and has stronger error correction capability; gray coding is adopted to enable bit sequences corresponding to two adjacent shift chirp sequences to differ by 1 bit, so that the influence of detection errors of the chirp sequences is reduced, and the error recovery capability is realized by combining Hamming codes.
in some embodiments, the control processing module monitors external data in an external interrupt mode, when data information arrives, the control processing module jumps out of the main program to perform an interrupt service function, and stores the received data information into the first-in first-out buffer.
the advantages of the transmission of the space-based communication data information are that: in some large-scale, trans-regional and harsh environments, transmission based on terrestrial communication networks is difficult to achieve large-scale coverage of geographic areas such as complex terrain and remote areas. The space-based communication network uses communication satellites in space as information relay and exchange nodes to link various communication networks in land, sea, air and space so as to realize a remote communication function, and has the characteristics of global coverage, insensitivity to space and environmental influences and the like.
According to the method, the data information forwarding in the narrow-band communication network of the Internet of things is carried out through the space-based communication module, the problems of distance limitation and labor cost when the data information is transmitted only by using the narrow-band communication of the Internet of things in the prior art can be effectively solved, and the technical effects of efficient and accurate transmission of the narrow-band communication data information of the Internet of things and cost reduction are achieved.
In a second aspect, the present application provides a space-based transmission device, as shown in fig. 2, where the transmission device includes a power module, an internet of things narrowband communication module, a space-based communication module, and a control processing module, where
The power module is used for supplying power to the narrowband communication module of the Internet of things, the space-based communication module and the control processing module;
the narrow-band communication module of the Internet of things is used for receiving data information sent by a plurality of terminals and sending the data information to the control processing module;
The control processing module is used for receiving the data information, judging whether the data information belongs to the narrowband communication data of the Internet of things, if the data information belongs to the narrowband communication data of the Internet of things, converting the data format of the data information into target day-based data information of a data format supporting day-based communication through a day-based communication coding rule, and sending the target day-based data information to the day-based communication module after obtaining the target day-based data information;
The space-based communication module is used for receiving the target space-based data information and sending the target space-based data information to a space-based platform so that the space-based platform sends the target space-based data information to a data receiving and processing terminal for processing.
In some embodiments, the determining whether the data information belongs to narrowband communication data of the internet of things includes:
If the data information is sent out through the narrowband communication link of the Internet of things, the data information belongs to narrowband communication data of the Internet of things; or alternatively
and if the data information is received from the terminal information sensing terminal, the data information belongs to the narrowband communication data of the Internet of things.
The transmission device based on the space base in this embodiment may also be referred to as a narrowband communication gateway of the internet of things.
In some embodiments, the narrowband communication gateway of the internet of things may include a power module, a narrowband communication module of the internet of things, a space-based communication module, and a control processing module.
Specifically, the power module is mainly used as power supply for each module in the gateway.
The narrowband communication module of the internet of things is mainly used for receiving and transmitting data between the narrowband communication module and the terminal information sensing terminal equipment and transmitting the data to the control processing module; the control processing module is mainly used for judging whether the narrowband data information and the data integrity of the Internet of things are received or not; if the received narrow-band communication data of the Internet of things is complete, the narrow-band data information of the Internet of things is converted into data information in a space-based communication format, and the data information in the space-based communication format is sent to a space-based communication module.
illustratively, the space-based communication module mainly receives the data information in the space-based communication format converted by the control processing module, and sends the data information to the space-based platform.
In some embodiments, the control processing module is connected with the narrowband communication module of the internet of things by adopting a serial port, and is connected with the space-based communication module by adopting a UART interface; the power module is connected with the Internet of things narrowband communication module, the control processing module and the space-based communication module through IO ports, and supplies power to the modules.
the narrowband communication gateway of the internet of things can complete all the above-mentioned transmission methods based on the space base and realize the technical effects of all the above-mentioned transmission methods based on the space base, and the description is omitted here.
It should be noted that the method according to one or more embodiments of the present application may be performed by a single device, such as a computer or server. The method of the embodiment can also be applied to a distributed scene, and is completed by mutually matching a plurality of devices. In the case of such a distributed scenario, one of the devices may perform only one or more steps of the methods of one or more embodiments of the present application, the devices interacting with each other to accomplish the methods.
It should be noted that the foregoing describes specific embodiments of the present application. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
based on the same inventive concept, the application also discloses an electronic device corresponding to the method of any embodiment;
specifically, fig. 3 shows a schematic hardware structure of an electronic device according to the present embodiment, where the electronic device may include: processor 410, memory 420, input/output interface 430, communication interface 440, and bus 450. Wherein processor 410, memory 420, input/output interface 430 and communication interface 440 are communicatively coupled to each other within the device via bus 450.
The processor 410 may be implemented by a general-purpose CPU (Central Processing Unit ), a microprocessor, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, etc. for executing relevant programs to implement the technical solutions provided by the embodiments of the present application.
The Memory 420 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory ), static storage device, dynamic storage device, or the like. Memory 420 may store an operating system and other application programs, and when implementing the techniques provided by embodiments of the present application by software or firmware, the associated program code is stored in memory 420 and invoked for execution by processor 410.
The input/output interface 430 is used to connect with an input/output module to realize information input and output. The input/output module may be configured as a component in a device (not shown in the figure) or may be external to the device to provide corresponding functionality. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various types of sensors, etc., and the output devices may include a display, speaker, vibrator, indicator lights, etc.
The communication interface 440 is used to connect communication modules (not shown) to enable communication interactions of the device with other devices. The communication module may implement communication through a wired manner (e.g., USB, network cable, etc.), or may implement communication through a wireless manner (e.g., mobile network, WIFI, bluetooth, etc.).
Bus 450 includes a path to transfer information between components of the device (e.g., processor 410, memory 420, input/output interface 430, and communication interface 440).
It should be noted that although the above device only shows the processor 410, the memory 420, the input/output interface 430, the communication interface 440, and the bus 450, in the implementation, the device may further include other components necessary to achieve normal operation. Furthermore, it will be understood by those skilled in the art that the above-described apparatus may include only the components necessary for implementing the embodiments of the present application, and not all the components shown in the drawings.
the electronic device of the foregoing embodiment is configured to implement the corresponding space-based transmission method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.
Based on the same inventive concept, one or more embodiments of the present application also provide a non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform the method of any of the embodiments described above.
The computer readable media of the present embodiments, including both permanent and non-permanent, removable and non-removable media, may be used to 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 storage media for a computer 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 disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.
The storage medium of the foregoing embodiments stores computer instructions for causing the computer to execute the method for transmitting based on the space base according to any one of the foregoing embodiments, and has the advantages of the corresponding method embodiments, which are not described herein.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the application (including the claims) is limited to these examples; combinations of features of the above embodiments or in different embodiments are also possible within the spirit of the application, steps may be implemented in any order and there are many other variations of the different aspects of one or more embodiments of the application described above which are not provided in detail for the sake of brevity.
Additionally, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures, in order to simplify the illustration and discussion, and so as not to obscure one or more embodiments of the application. Furthermore, the apparatus may be shown in block diagram form in order to avoid obscuring the embodiment(s) of the present application, and also in view of the fact that specifics with respect to implementation of such block diagram apparatus are highly dependent upon the platform on which the embodiment(s) of the present application are to be implemented (i.e., such 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 application, it should be apparent to one skilled in the art that one or more embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.
while the application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.
The present application is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalents, improvements and others which are within the spirit and principle of the one or more embodiments of the application are intended to be included within the scope of the application.
Claims (10)
1. A method of space-based transmission, the method comprising:
s1, receiving data information sent by a plurality of terminals by an Internet of things narrowband communication module, and sending the data information to a control processing module;
S2, the control processing module receives the data information and judges whether the data information belongs to the narrow-band communication data of the Internet of things, if the data information belongs to the narrow-band communication data of the Internet of things, the data format of the data information is converted into target day-based data information of a data format supporting day-based communication through a day-based communication coding rule, and after the target day-based data information is obtained, the target day-based data information is sent to a day-based communication module;
And S3, the space-based communication module receives the target space-based data information and sends the target space-based data information to a space-based platform, so that the space-based platform sends the target space-based data information to a data receiving and processing terminal for processing.
2. The method for transmitting data based on the space-based system of claim 1, wherein the determining whether the data information belongs to the narrowband communication data of the internet of things comprises:
If the data information is sent out through the narrowband communication link of the Internet of things, the data information belongs to narrowband communication data of the Internet of things; or alternatively
and if the data information is received from the terminal information sensing terminal, the data information belongs to the narrowband communication data of the Internet of things.
3. the space-based transmission method according to claim 1 or 2, wherein the converting the data format of the data information into the target space-based data information of the data format supporting space-based communication by the space-based communication coding rule comprises:
judging the integrity of the data information through CRC redundancy check;
And if the data information is complete, converting the data format of the data information into target day-based data information of a data format supporting the day-based communication through a day-based communication coding rule.
4. a method of space-based transmission according to claim 3, comprising, prior to encoding the data information:
Decoding the data information according to the narrowband communication decoding rule of the Internet of things to obtain decoded source data information, wherein the decoding mode comprises the following steps: lora technology.
5. The space-based transmission method of claim 4, wherein converting the source data information into target space-based data information in a data format supporting space-based communication by space-based communication coding rules, comprises:
Performing hamming coding on the source data information;
Whitening the source data information after hamming coding, and carrying out diagonal interleaving and gray coding on the source data information after whitening;
and performing chirp modulation on the source data information subjected to Gray coding to obtain target day-base data information.
6. the method of claim 5, wherein the control processing module monitors external data by means of external interrupt, and when data information arrives, the control processing module jumps out of the main program to perform interrupt service function, and stores the received data information in the fifo buffer.
7. the transmission device based on the space base is characterized by comprising a power supply module, an Internet of things narrowband communication module, a space base communication module and a control processing module, wherein
The power module is used for supplying power to the narrowband communication module of the Internet of things, the space-based communication module and the control processing module;
the narrow-band communication module of the Internet of things is used for receiving data information sent by a plurality of terminals and sending the data information to the control processing module;
The control processing module is used for receiving the data information, judging whether the data information belongs to the narrowband communication data of the Internet of things, if the data information belongs to the narrowband communication data of the Internet of things, converting the data format of the data information into target day-based data information of a data format supporting day-based communication through a day-based communication coding rule, and sending the target day-based data information to the day-based communication module after obtaining the target day-based data information;
The space-based communication module is used for receiving the target space-based data information and sending the target space-based data information to a space-based platform so that the space-based platform sends the target space-based data information to a data receiving and processing terminal for processing.
8. The space-based transmission device of claim 7, wherein the determining whether the data information belongs to narrowband communication data of the internet of things comprises:
If the data information is sent out through the narrowband communication link of the Internet of things, the data information belongs to narrowband communication data of the Internet of things; or alternatively
and if the data information is received from the terminal information sensing terminal, the data information belongs to the narrowband communication data of the Internet of things.
9. An electronic device, the electronic device comprising: 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 computer program.
10. a computer readable storage medium storing one or more programs executable by one or more processors to implement the method of any of claims 1-6.
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