CN112260768A - Electro-optical hybrid underwater communication method based on optical fiber zooming - Google Patents
Electro-optical hybrid underwater communication method based on optical fiber zooming Download PDFInfo
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Abstract
The invention discloses an electro-optical hybrid underwater communication method, an electro-optical hybrid underwater communication system and a storage medium based on optical fiber remote, wherein tight coupling function integration is carried out on an optical fiber communication module and a radio communication module, high-speed, networking and long-distance data transmission are realized through the optical fiber communication module, radio communication is realized through a radio communication module arranged on a submarine optical cable communication node, and long-distance communication between an underwater mobile platform node and another platform with the distance exceeding the radio attenuation radius is realized through electro-optical signal mutual conversion. The invention increases the transmission distance of underwater radio communication by equivalent of optical fiber remote, expands the coverage range of optical fiber communication by radio signals, and flexibly switches and breaks through an electric-optical communication link by multiple physical field signals, thereby providing important reference for constructing an underwater communication network which has the advantages of long transmission distance, wide coverage range and cross-medium transmission.
Description
Technical Field
The invention belongs to the interdisciplinary field of optical fiber communication and radio communication, in particular to an underwater communication method for realizing long-distance transmission and large-range coverage by performing functional coupling integration on an optical cable communication system and a radio communication system at the sea bottom, and particularly relates to an electro-optic hybrid underwater communication method and system based on optical fiber zooming and a storage medium.
Background
The underwater communication is an important means for information interaction between the underwater platform and the above-water platform and between the underwater platform, and the main means comprises radio communication, submarine optical cable communication, sound wave communication, blue-green light communication and the like. Different from the above-water free space, the transmission medium of underwater communication is seawater, so that many bottleneck factors are faced, and a single communication means is difficult to meet the communication requirements of various application scenarios: the wireless communication coding rate is low, the antenna size is large, the power consumption is high, the electromagnetic pollution is serious, and the transmission distance is less than one hundred meters under the influence of seawater absorption loss; blue-green light communication is a mobile communication means with higher coding rate, but also faces severe seawater absorption loss; the acoustic communication is the most advantageous underwater communication technical scheme at present, but the mechanical transducer has large size and high power consumption and is easily influenced by background noise; submarine optical cable communication has the advantages of long transmission distance, high coding rate, stable system and the like, but a communication link can be established only for a fixed node, the overhauling difficulty is high, the energy supply pressure is high, and the large-range coverage cannot be realized.
Disclosure of Invention
In view of the fact that a single underwater communication means is difficult to simultaneously give consideration to application requirements of long transmission distance, wide coverage range, high coding rate, cross-medium transmission and the like, the invention provides an electro-optic hybrid underwater communication method based on optical fiber remote by taking microwave photon technology as a reference, and the invention solves the technical problem of how to tightly couple and integrate an optical fiber communication module and a radio communication module, wherein the optical fiber communication module arranged at each fixed node transmits plaintext information in the form of optical signals through a submarine optical cable, and the radio communication module arranged at each fixed node transmits radio signals and establishes a durable and stable mobile communication link by taking a multicast form as any platform (no matter an underwater platform or an aerial platform) within an attenuation radius; communication interconnection among all fixed nodes is realized through the submarine optical cables which are arranged in a grid mode, communication coverage in a certain range around the fixed nodes is realized through the radio modules, and an electro-optical hybrid long-distance communication link is established for communication parties outside a radio attenuation radius.
In order to achieve the effect, the electro-optical hybrid underwater communication method based on optical fiber zooming comprises a plurality of nodes, wherein the nodes are connected through submarine optical cables, and optical fiber communication modules and radio communication modules are arranged on the nodes; the method comprises the following steps of,
the method comprises the following steps of firstly, optical fiber communication, namely, taking an undersea optical cable as a transmission channel, completing signal modulation, signal transmission, relay amplification and signal demodulation, and mainly facing high-speed data transmission services among various underwater fixed platforms which are distributed in a grid lattice manner and connected with each other through the undersea optical cable;
step two, radio communication, namely sending signals in a multicast mode through a radio module, establishing an underwater radio communication link with a radio module carried by a maneuvering platform, and mainly facing low-speed data transmission service between a fixed node and an underwater maneuvering platform node or an overwater/aerial maneuvering platform node within an attenuation radius range;
and step three, optical fiber zooming, which is implemented through optical fiber communication, radio communication and electro-optical physical field interconnection and mainly faces low-speed data transmission services between underwater maneuvering platform nodes with distances far exceeding the radio attenuation radius and between the underwater maneuvering platform nodes and the overwater maneuvering platform.
Preferably, the nodes are fixed nodes or underwater maneuvering platform nodes or aerial maneuvering platform nodes.
Preferably, the optical fiber communication module provides data transmission service for the fixed node by using the submarine optical cable as a transmission channel, and the radio communication module searches for a mobile platform or a fixed platform within an attenuation radius, transmits signals in a multicast mode, and establishes a radio communication link.
Preferably, a communication link is established between the two nodes, two communication parties select different working modes according to service requirements and actual conditions, both the communication parties are all optical modes selected by fixed nodes, at least one party of the two communication parties is not a fixed node and selects an all-optical mode with a distance smaller than a radio attenuation radius, at least one party of the two communication parties is not a fixed node and has a distance larger than the radio attenuation radius, or one party of the two communication parties selects an optical fiber remote mode on water.
Preferably, both communication parties in the optical fiber remote mode establish a complete communication link through the logic conversion or multi-physical field direct conversion of radio signals and optical fiber communication signals, and realize communication interconnection with another platform at an arbitrary position in a coverage range.
Preferably, the nodes are connected logically or directly by physical fields.
Preferably, the information transmission carrier is long-wave, very-long-wave and ultra-long-wave radio which absorbs relatively small waves in water, information is sent in a multicast mode through an antenna, and two communication parties share the same working wavelength, communication protocol and encryption scheme; the information transmission carrier is a fixed node which absorbs relatively small light waves in light, and two communication parties are connected through a submarine optical cable and adopt the same working wavelength, communication protocol and encryption scheme.
Preferably, at least one of the two communication parties of the nodes is underwater, at least one of the two communication parties is a mobile platform, the distance between the mobile platform and the nearest fixed node is smaller than the radio attenuation radius, the mobile platform establishes communication interconnection with the nearest fixed node through a radio communication module, and a long-distance communication link is established by the two communication parties of which the distance exceeds the radio attenuation radius by means of mutual conversion of radio signals and optical fiber communication signals.
The system comprises a plurality of fixed nodes, underwater mobile platform nodes and aerial mobile platform nodes, wherein the fixed nodes are connected through submarine optical cables, the depth fixed nodes of the fixed nodes are smaller than the radio attenuation radius, the fixed nodes are provided with optical fiber communication modules and radio communication modules, the optical fiber communication modules and the radio communication modules are logically connected or directly connected in a physical field, and the underwater mobile platform nodes or the aerial mobile platform nodes are arranged in the attenuation radius of part of the fixed nodes.
The optical fiber communication module is used for completing signal modulation, signal transmission, relay amplification and signal demodulation by taking the submarine optical cable as a transmission channel, and mainly faces high-speed data transmission services among various underwater fixed platforms which are distributed in a grid lattice manner and connected with each other through the submarine optical cable;
the wireless communication module is used for sending signals in a multicast mode through the wireless module and establishing an underwater wireless communication link with a wireless module carried by a maneuvering platform, and mainly faces low-speed data transmission services between a fixed node and an underwater maneuvering platform node or an overwater/aerial maneuvering platform node within an attenuation radius range;
the system also comprises an optical fiber remote module which is used for implementing the interconnection through optical fiber communication, radio communication and an electro-optical physical field and mainly faces low-speed data transmission services among underwater maneuvering platform nodes with distances far exceeding the radio attenuation radius and between the underwater maneuvering platform nodes and the overwater maneuvering platform.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the above-mentioned method.
Compared with the prior art, the invention has the following advantages:
1. the invention provides a hybrid integration method of radio communication and submarine optical cable communication, which has the technical advantages of long submarine optical cable communication transmission distance, high coding rate, strong environmental stability, random access of radio communication, three-dimensional coverage and cross-medium transmission;
2. the idea of using the optical fiber to pull the radio signal far can solve the problems of large antenna size, high power consumption, high waterproof difficulty index improvement and the like caused by the fact that the output power of the traditional radio communication system is improved for pursuing long-distance transmission;
3. the idea of the invention for constructing the grid-radio communication to realize the three-dimensional coverage by the submarine optical cable can provide important reference for constructing an underwater communication network which has long transmission distance and wide coverage and can transmit across media.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic diagram of an electro-optical hybrid underwater communication system based on optical fiber remote of the invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The invention provides an embodiment of an electro-optical hybrid underwater communication method based on optical fiber zooming, which comprises a plurality of nodes, wherein the nodes are connected through submarine optical cables and are provided with an optical fiber communication module and a radio communication module; the method comprises the following steps:
the method comprises the following steps of firstly, optical fiber communication, namely, taking an undersea optical cable as a transmission channel, completing signal modulation, signal transmission, relay amplification and signal demodulation, and mainly facing high-speed data transmission services among various underwater fixed platforms which are distributed in a grid lattice manner and connected with each other through the undersea optical cable;
step two, radio communication, namely sending signals in a multicast mode through a radio module, establishing an underwater radio communication link with a radio module carried by a maneuvering platform, and mainly facing low-speed data transmission service between a fixed node and an underwater maneuvering platform node or an overwater/aerial maneuvering platform node within an attenuation radius range;
and step three, optical fiber zooming, which is implemented through optical fiber communication, radio communication and electro-optical physical field interconnection and mainly faces low-speed data transmission services between underwater maneuvering platform nodes with distances far exceeding the radio attenuation radius and between the underwater maneuvering platform nodes and the overwater maneuvering platform.
In some embodiments, the nodes are fixed nodes or underwater mobile platform nodes or airborne mobile platform nodes.
In some embodiments, the fiber optic communication module provides data transmission services to the fixed nodes using submarine fiber cables as transmission channels, and the radio communication module searches for mobile platforms or fixed platforms within the attenuation radius, transmits signals by multicast, and establishes radio communication links.
In some embodiments, a communication link is established between two nodes, two communication parties select different working modes according to service requirements and actual conditions, both the communication parties are selected full optical modes of fixed nodes, at least one party of the two communication parties is not a fixed node and selects a full electrical mode with a distance smaller than a radio attenuation radius, at least one party of the two communication parties is not a fixed node and has a distance larger than the radio attenuation radius, or one party of the two communication parties selects a fiber remote mode on water.
In some embodiments, both communication parties in the fiber-optic remote mode establish a complete communication link through the logic conversion or multi-physical field direct conversion of radio signals and fiber-optic communication signals, and realize communication interconnection with another platform at an extra-long distance at any position in a coverage range.
In some embodiments, the nodes are logically connected or are directly connected by physical fields.
In some embodiments, the information transmission carrier is long-wave, very-long-wave and ultra-long-wave radio which absorbs relatively small amount in water, information is sent in a multicast mode through an antenna, and two communication parties share the same working wavelength, communication protocol and encryption scheme; the information transmission carrier is a fixed node which absorbs relatively small light waves in light, and two communication parties are connected through a submarine optical cable and adopt the same working wavelength, communication protocol and encryption scheme.
In some embodiments, at least one of the two communication parties of the nodes is underwater, at least one of the two communication parties is a mobile platform, the distance between the mobile platform and the nearest fixed node is smaller than the radio attenuation radius, the mobile platform establishes communication interconnection with the nearest fixed node through a radio communication module, and a long-distance communication link is established by the two communication parties of which the distance exceeds the radio attenuation radius by means of mutual conversion of radio signals and optical fiber communication signals.
The invention provides an embodiment of a system for realizing the electro-optical hybrid underwater communication method based on optical fiber zooming, which comprises a plurality of fixed nodes, underwater maneuvering platform nodes and aerial maneuvering platform nodes, wherein the fixed nodes are connected through submarine optical cables, the depth fixed nodes of the fixed nodes are smaller than the radio attenuation radius, the fixed nodes are provided with optical fiber communication modules and radio communication modules, the optical fiber communication modules and the radio communication modules are logically connected or directly connected in a physical field, and the underwater maneuvering platform nodes or the aerial maneuvering platform nodes are arranged in the attenuation radius of part of the fixed nodes.
The optical fiber communication is used for completing signal modulation, signal transmission, relay amplification and signal demodulation by taking the submarine optical cable as a transmission channel, and mainly faces to high-speed data transmission services among various underwater fixed platforms which are distributed in a grid lattice manner and connected with each other through the submarine optical cable;
the wireless communication module is used for sending signals in a multicast mode through the wireless module and establishing an underwater wireless communication link with a wireless module carried by a maneuvering platform, and mainly faces low-speed data transmission services between a fixed node and an underwater maneuvering platform node or an overwater/aerial maneuvering platform node within an attenuation radius range;
the system also comprises an optical fiber remote module which is used for implementing the interconnection through optical fiber communication, radio communication and an electro-optical physical field and mainly faces low-speed data transmission services among underwater maneuvering platform nodes with distances far exceeding the radio attenuation radius and between the underwater maneuvering platform nodes and the overwater maneuvering platform.
As shown in fig. 1, the present invention provides an embodiment of an electro-optical hybrid underwater communication method based on optical fiber zooming, where a to G are fixed nodes, I, J is an underwater maneuvering platform, and H is an aerial maneuvering node; the nodes A-B, A-D, B-E, D-E, E-F, F-C, C-G are connected through submarine optical cables; D. e, F three fixed nodes are deeper, A, B, C three fixed nodes are deeper, and G fixed node depth is the smallest and smaller than the radio attenuation radius. Each fixed node is provided with an optical fiber communication module and a radio communication module which can be logically connected (the optical fiber communication signal and the radio signal can be converted only by plaintext information interpretation) or directly connected in a physical field (the optical fiber communication signal and the radio signal are directly converted with each other); an underwater maneuvering platform I is arranged in the node A attenuation radius, an underwater maneuvering platform J is arranged in the node F attenuation radius, and a hollow maneuvering platform H is arranged in the node G attenuation radius (the attenuation radius needs to be comprehensively obtained by considering an underwater part and a free space part).
Based on the above settings, the electro-optical hybrid underwater communication based on optical fiber remote according to the present invention includes, but is not limited to, the following operation modes:
1. an all-light mode: the communication between any two fixed nodes can be realized through an all-optical mode, and at the moment, only the optical fiber communication module works in the electro-optical hybrid underwater communication system, namely, the traditional submarine optical cable communication system.
2. Full electric mode: the communication within the radio attenuation radius, wherein at least one party of the two communication parties is the underwater mobile platform, can be realized through a full electric mode, and at the moment, the electro-optical hybrid underwater communication system only has a radio communication module to work, namely a traditional radio communication system.
3. Fiber pull-out mode: communication of at least one of the two communication parties except the radio attenuation radius is the underwater mobile platform can be realized through a fiber optic remote mode, for example, in the figure 1, the underwater mobile platform I and the fixed node B can communicate in a mode of I → radio → A → optical cable → B, the underwater mobile platforms I and J can communicate in a mode of I → radio → A → optical cable → B (D) → optical cable → E → optical cable → F → radio → J, and the underwater mobile platform J and the air mobile platform H can communicate in a mode of J → radio → E → optical cable → G → radio → H. Although the distance between the underwater maneuvering platform I and the underwater maneuvering platform J is far beyond the radio attenuation radius, and the deepwater maneuvering platform J and the high-altitude maneuvering platform H even belong to two medium spaces, the two can still carry out effective communication interconnection by virtue of the optical fiber remote mode.
The invention provides an embodiment of an electro-optical hybrid underwater communication method based on optical fiber zooming, which specifically comprises the following steps:
s101, the optical fiber communication module provides data transmission service for a fixed node by taking an optical cable at the sea bottom as a transmission channel, and the radio communication module searches a maneuvering platform or a fixed platform (which can be underwater or above water) within an attenuation radius, sends signals in a multicast mode and establishes a radio communication link;
s102, two communication parties select different working modes according to business requirements and actual conditions, wherein the two communication parties are both selected all-optical modes of fixed nodes, at least one of the two communication parties is not a fixed node and selects a full-electrical mode with a distance smaller than a radio attenuation radius, at least one of the two communication parties is not a fixed node and has a distance larger than the radio attenuation radius, or one of the two communication parties selects an optical fiber remote mode on water;
s103, both communication parties in the optical fiber remote mode establish a complete communication link through logic conversion or multi-physical field direct conversion of radio signals and optical fiber communication signals, and communication interconnection with another ultra-remote platform is realized at any position in a coverage range.
The invention provides an embodiment of an electro-optical hybrid underwater communication method based on optical fiber remote, which integrates the tight coupling function of an optical fiber communication module and a radio communication module, realizes high-speed, networking and long-distance data transmission through the optical fiber communication module, realizes radio communication by utilizing the radio communication module arranged on a submarine optical cable communication node, and realizes long-distance communication between an underwater mobile platform and another platform with the distance exceeding the radio attenuation radius through the mutual conversion of electro-optical signals. The invention increases the transmission distance of underwater radio communication by equivalent of optical fiber remote, expands the coverage range of optical fiber communication by radio signals, and flexibly switches and breaks through an electric-optical communication link by multiple physical field signals, thereby providing important reference for constructing an underwater communication network which has the advantages of long transmission distance, wide coverage range and cross-medium transmission.
The invention provides an embodiment of an electro-optical hybrid underwater communication method based on optical fiber remote, which integrates optical fiber communication modules and radio communication modules by applying work and tightly coupling, realizes high-speed, networking and long-distance data transmission through the optical fiber communication modules, realizes data transmission with any maneuvering platform within an attenuation radius range through the radio communication modules, equivalently improves the radio communication transmission distance through the optical fiber remote, equivalently expands the optical fiber communication coverage range through radio multicast, and finally can construct an underwater communication network which has a long transmission distance and can carry out cross-medium transmission.
In some embodiments, the information transmission carrier for radio communication is long-wave, very-long-wave, and ultra-long-wave radio with relatively small absorption in water, and the information is transmitted in multicast form through an antenna, and both communication parties share the same operating wavelength, communication protocol, and encryption scheme, typical system structures include, but are not limited to, a signal source, a modulator, a frequency converter, an amplifier, an antenna, a mixer, a demodulator, a filter, and the like, and typical standardized application modes include, but are not limited to, cellular mobile communication, broadband wireless access, digital trunking, short-range communication, and the like, without limitation to carrier frequency band, communication protocol, and industry standard. The marine stations include, but are not limited to, shore-based fixed stations, marine fixed stations, ship-based towing stations, and airborne towing stations.
In some embodiments, the information transmission carrier for submarine optical fiber communication is a fixed node that absorbs relatively small light waves in light, and both communication parties are connected through the submarine optical fiber, and the same operating wavelength, communication protocol and encryption scheme are adopted, and typical system structures include, but are not limited to, a light source, a modulator, a filter, an erbium-doped fiber amplifier, a demodulator, a photodetector, and the like, and do not limit specific operating wavelengths, communication protocols, industry standards, system structures and carrying platforms.
In some embodiments, at least one of the two communication parties of the optical fiber remote communication is underwater, at least one of the two communication parties is a mobile platform, the distance between the mobile platform and the nearest fixed node is smaller than the radio attenuation radius, the mobile platform establishes communication interconnection with the nearest fixed node through a radio communication module, and a long-distance communication link is established by the two communication parties of which the distance exceeds the radio attenuation radius by means of mutual conversion of radio signals and optical fiber communication signals. The types of the two communication parties are not limited, the distance between the two communication parties is not limited, the specific path of data transmission between the fixed nodes is not limited, and the routing scheme is not limited.
In some embodiments, the conversion between the radio signal and the optical fiber communication signal can be realized by a logical conversion method, in which plaintext information carried by the radio signal is interpreted and re-encoded and modulated on the optical fiber communication signal (or vice versa), or by a physical field direct conversion method, in which a carrier wave of the optical fiber communication is modulated directly by the radio signal, and the plaintext information is not interpreted during the conversion process (or vice versa). The particular manner of conversion, the particular system architecture, and the particular waveforms and encoding schemes are not limited.
Compared with the prior art, the invention has the following advantages:
firstly, the invention provides a hybrid integration method of radio communication and submarine optical cable communication, which has the technical advantages of long submarine optical cable communication transmission distance, high coding rate, strong environmental stability, random access of radio communication, three-dimensional coverage and cross-medium transmission;
secondly, the idea of using the optical fiber to pull the radio signal far can solve the problems of large antenna size, high power consumption, high waterproof difficulty index and the like caused by the fact that the output power of the traditional radio communication system is increased for pursuing long-distance transmission;
in addition, the idea of constructing the grid-radio communication to realize three-dimensional coverage by the submarine optical cable can provide important reference for constructing an underwater communication network which has long transmission distance and wide coverage and can transmit across media.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. An electro-optical hybrid underwater communication method based on optical fiber remote comprises a plurality of nodes, wherein the nodes are connected through submarine optical cables and are provided with optical fiber communication modules and radio communication modules; the method is characterized in that: the method comprises the following steps of,
the method comprises the following steps of firstly, optical fiber communication, namely, taking an undersea optical cable as a transmission channel, completing signal modulation, signal transmission, relay amplification and signal demodulation, and mainly facing high-speed data transmission services among various underwater fixed platforms which are distributed in a grid lattice manner and connected with each other through the undersea optical cable;
step two, radio communication, namely sending signals in a multicast mode through a radio module, establishing an underwater radio communication link with a radio module carried by a maneuvering platform, and mainly facing low-speed data transmission service between a fixed node and an underwater maneuvering platform node or an overwater/aerial maneuvering platform node within an attenuation radius range;
and step three, optical fiber zooming, which is implemented through optical fiber communication, radio communication and electro-optical physical field interconnection and mainly faces low-speed data transmission services between underwater maneuvering platform nodes with distances far exceeding the radio attenuation radius and between the underwater maneuvering platform nodes and the overwater maneuvering platform.
2. The optical fiber remote-based electro-optical hybrid underwater communication method according to claim 1, wherein the node is a fixed node or an underwater maneuvering platform node or an aerial maneuvering platform node.
3. The electro-optical hybrid underwater communication method based on optical fiber remote according to claim 2, wherein the optical fiber communication module provides data transmission service for the fixed node by using an optical fiber cable at the sea as a transmission channel, and the radio communication module searches for a mobile platform or a fixed platform within an attenuation radius, transmits signals in a multicast mode, and establishes a radio communication link.
4. The electro-optical hybrid underwater communication method based on optical fiber remote according to claim 2, wherein a communication link is established between the two nodes, two communication parties select different working modes according to business requirements and practical situations, both the communication parties are selected full optical modes of fixed nodes, at least one party of the two communication parties is not a fixed node and selects a full electrical mode with a distance smaller than a radio attenuation radius, at least one party of the two communication parties is not a fixed node and has a distance larger than the radio attenuation radius, or both the communication parties have a selected optical fiber remote mode with one party on water.
5. The electro-optical hybrid underwater communication method based on optical fiber remote of claim 2, wherein the communication link is established between the two communication parties in the optical fiber remote mode through the logic conversion or the multi-physical field direct conversion of the radio signal and the optical fiber communication signal, and the communication interconnection with another platform at an extra-long distance is realized at any position in the coverage area.
6. The optical fiber remote-based electro-optical hybrid underwater communication method according to claim 2, wherein the nodes are logically connected or directly connected by a physical field.
7. The electro-optical hybrid underwater communication method based on optical fiber remote of claim 2, wherein the information transmission carrier is long-wave, very-long-wave, and ultra-long-wave radio which absorbs relatively small amount in water, and transmits information in a multicast mode through an antenna, and both communication parties share the same working wavelength, communication protocol, and encryption scheme; the information transmission carrier is a fixed node which absorbs relatively small light waves in light, and two communication parties are connected through a submarine optical cable and adopt the same working wavelength, communication protocol and encryption scheme.
8. The electro-optical hybrid underwater communication method based on optical fiber remote according to any one of claims 2 to 7, wherein at least one of the two communication parties of the node is underwater, at least one of the two communication parties is a mobile platform, the distance between the mobile platform and the nearest fixed node is smaller than the radio attenuation radius, the mobile platform establishes communication interconnection with the nearest fixed node through a radio communication module, and a long-distance communication link is established between the two communication parties whose distance exceeds the radio attenuation radius by mutual conversion of radio signals and optical fiber communication signals.
9. A system for realizing the electro-optical hybrid underwater communication method based on optical fiber remote according to claims 1-8, comprising a plurality of fixed nodes, underwater mobile platform nodes and aerial mobile platform nodes, wherein the fixed nodes are connected through submarine optical cables, the depth of the fixed nodes is smaller than the radio attenuation radius, the fixed nodes are provided with optical fiber communication modules and radio communication modules which are logically connected or directly connected with a physical field, the underwater mobile platform nodes or the aerial mobile platform nodes are arranged in the attenuation radius of part of the fixed nodes,
the optical fiber communication module is used for completing signal modulation, signal transmission, relay amplification and signal demodulation by taking the submarine optical cable as a transmission channel, and mainly faces high-speed data transmission services among various underwater fixed platforms which are distributed in a grid lattice manner and connected with each other through the submarine optical cable;
the wireless communication module is used for sending signals in a multicast mode through the wireless module and establishing an underwater wireless communication link with a wireless module carried by a maneuvering platform, and mainly faces low-speed data transmission services between a fixed node and an underwater maneuvering platform node or an overwater/aerial maneuvering platform node within an attenuation radius range;
the system also comprises an optical fiber remote module which is used for implementing the interconnection through optical fiber communication, radio communication and an electro-optical physical field and mainly faces low-speed data transmission services among underwater maneuvering platform nodes with distances far exceeding the radio attenuation radius and between the underwater maneuvering platform nodes and the overwater maneuvering platform.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 8.
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