WO2023040571A1

WO2023040571A1 - Communication method between base station and terminal, communication system and storage medium

Info

Publication number: WO2023040571A1
Application number: PCT/CN2022/113345
Authority: WO
Inventors: 陈雄颖; 罗丁元; 蔡俊; 刘德良; 王满; 刘振河; 潘浩; 李德炎; 苏鹏; 许俊伟; 刘根弟; 谢一民; 欧秀平; 李英乐; 许学艺; 邓林波; 廖冠生; 梁钢兴; 陈晓民; 刘凯鹏
Original assignee: 高勘(广州)技术有限公司
Priority date: 2021-09-17
Filing date: 2022-08-18
Publication date: 2023-03-23
Also published as: CN113541800A; CN113541800B

Abstract

The present application provides a communication method between a base station and a terminal and a corresponding communication system. Information that needs to be transmitted by a terminal is modulated into state variables such as temperature, vibration, stress, deformation, an electric field, and a magnetic field. After the actively modulated state variables act on an optical cable, a base station end demodulates the state variables by means of an optical fiber sensing technology, and an information transmission system in a new form is formed. In this way, the limitation caused by the use of a photoelectric conversion mode in the traditional optical communication can be avoided, and the terminal access does not need to cut over and couple the optical cable, such that the construction difficulty of the communication system is greatly reduced, and meanwhile, each physical point of the whole optical cable body can be used as an information loading point, and the distributed terminal information access is realized. Moreover, the system can expand the information transmission coverage range by using a huge existing optical cable network, and realizes accurate transmission of information carried by different types of state variables.

Description

Communication method, communication system and storage medium between base station and terminal

This application claims the priority of the Chinese patent application submitted to the China Patent Office on September 17, 2021, with the application number 202111090373.9 and the application name "A communication method between a base station and a terminal and a corresponding communication system". The entire contents of this application are incorporated by reference.

technical field

The present application relates to a communication method, a communication system and a storage medium between a base station and a terminal.

Background technique

Communication system is a general term for technical systems used to complete the process of information transmission. Modern communication systems are mainly realized by the propagation of electromagnetic waves in free space or the transmission mechanism in guided media. The former is called wireless communication system, and the latter is called wired communication system. When the wavelength of the electromagnetic wave reaches the light wave range, such a telecommunication system is called an optical communication system, and the communication system in other electromagnetic wave ranges is called an electromagnetic communication system, or a telecommunication system for short. Since the light guiding medium adopts special glass fiber, the wired optical communication system is also called the optical fiber communication system. Generally, the guiding medium of electromagnetic wave is wire, which can be divided into cable communication system and open wire communication system according to its specific structure; wireless telecommunication system can be divided into microwave communication system and short wave communication system according to the wavelength of electromagnetic wave. On the other hand, according to different communication services, communication systems can be divided into telephone communication systems, data communication systems, facsimile communication systems, and image communication systems. Because people have higher and higher requirements for communication capacity and more and more diversified communication business requirements, the communication system is rapidly developing in the direction of broadband, and the optical fiber communication system plays an important role in the communication network. In some mountainous areas, plateaus, and sparsely populated suburbs, the strength of traditional radio frequency signals is relatively weak, and it is difficult to cover the above-mentioned areas without blind spots; in addition, in some space environments, various signals overlap. On both sides, the external electromagnetic field interference is quite large. Therefore, in the above scenario, continuing to use the traditional wireless communication method to complete the communication will affect the quality of the communication, and various problems such as data packet loss and data delay will occur. Therefore, it is necessary to propose an improved communication method to overcome the above occurrences. The problem.

Contents of the invention

According to various embodiments disclosed in the present application, a communication method, a communication system, and a storage medium between a base station and a terminal are provided.

A communication method between a base station and a terminal, applied to a communication system, the communication system is composed of a base station, a communication terminal and an optical cable, and the communication method includes:

The communication terminal modulates the information to be transmitted into a state variable through the regulator; the state variable is used to act on the optical cable through the loading device, and the optical fiber in the optical cable is affected by the state variable to change its state;

the base station receives the optical signal of the optical fiber; and

The base station demodulates the state variable to obtain the information to be transmitted.

Further, the state variable is one or more of a temperature signal, a vibration signal, a stress signal, a deformation signal, an electric field signal, and a magnetic field signal.

Further, the vibration signal is used to periodically deform the shape of the optical cable.

Further, the state variable is used to change the state of the optical cable, thereby modulating the communication parameters of the optical signal of the optical fiber in the optical cable; the communication parameters include wavelength, phase, frequency, phase, polarization state and at least one of the energies.

Further, the optical signal includes a backscattered optical signal;

The base station demodulates the state variable, and the step of obtaining the information to be transmitted includes:

The photoelectric device and information processing module of the base station detect the amplitude, phase, and polarization state of the backscattered optical signal, based on the direct and cyclostationary relationship between the amplitude, phase, and polarization state and the state variable According to the corresponding relationship, the current value of the state variable is obtained to obtain the information to be transmitted.

Further, the base station demodulates the state variable, and the step of obtaining the signal to be transmitted includes:

The photoelectric device of the base station converts the optical signal of the optical fiber into an electrical signal;

The laser demodulation module of the base station demodulates the electrical signal to obtain the state variable; and,

The information processing module of the base station analyzes the state variables to obtain the information to be transmitted.

Further, the information to be transmitted is digital communication information;

The step of the communication terminal modulating the information to be transmitted into a state variable through the regulator includes:

The communication terminal converts the digital communication information into a vibration signal through the adjuster; and,

The communication terminal loads the vibration signal onto the optical cable through the loading device, so that the optical fiber in the optical cable undergoes periodic deformation under the influence of the vibration signal, thereby affecting the optical signal of the optical fiber in the optical cable The communication parameters are modulated.

Further, the base station is used for generating laser light, injecting laser light into the optical cable, receiving the optical signal modulated by the state variable transmitted in the optical fiber, and obtaining the state variable through demodulation.

Further, the communication terminal obtains information through the information input module, modulates the information into the state variable through the regulator, and the information receiver receives the state variable and loads it onto the optical cable through the loading device, A modulation of the optical signal in the optical fiber is formed.

A communication system, including a base station, a communication terminal and an optical cable;

The communication terminal is used to modulate the information to be transmitted into a state variable through the regulator, and apply the state variable to the optical cable to change the state of the optical cable, thereby modulating the optical fiber in the optical cable The communication parameters of the optical signal;

The base station is used to receive the optical signal in the optical fiber, and perform format conversion and demodulation on the optical signal in the optical fiber to obtain information to be transmitted.

Further, the base station includes:

a laser emitting section for generating laser light for modulation and injecting said laser light into said optical fiber;

The receiving part of the laser is used to receive the optical signal transmitted in the optical fiber and modulated by the state variable, and obtain the information to be transmitted after format conversion and demodulation.

Further, the receiving part of the laser includes:

a laser receiving module, configured to receive the optical signal transmitted in the optical fiber and modulated by the state variable, and convert the optical signal into an electrical signal;

The laser demodulation module is used to extract the characteristic parameters in the electrical signal, and demodulate the electrical signal based on the characteristic parameters to obtain the original physical state quantity, wherein the characteristic parameters include at least amplitude, phase, frequency, polarization state and energy;

The information processing module is configured to further analyze the original physical state quantity, obtain the information source transmitted by the communication terminal, and obtain the information to be transmitted from the communication terminal to the base station.

Further, the communication terminal includes an information input module, an information modulation module, and a state generation module; the information input module is used for inputting information;

The information input module is used to obtain information to be transmitted;

The information modulation module is used to modulate the information to be transmitted into the state variable;

The state generation module is used to load the state variable onto the optical cable to form a modulation of the laser in the optical fiber to obtain an optical signal.

Further, the information modulation module includes a regulator;

The regulator is used to modulate the information to be transmitted into a vibration signal with a specific corresponding relationship;

The state generation module is used to load the vibration signal onto the optical cable, and the optical cable undergoes periodic deformation under the influence of the vibration signal, so as to modulate the communication parameters of the laser of the optical fiber in the optical cable, get light signal.

the conditioner is used to transform the digital communication information into a vibration signal;

The state generating module is used to apply the vibration signal to the optical cable directly or indirectly, the state of the optical fiber in the optical cable changes under the action of the state variable, and the optical fiber The communication parameters of the laser are modulated to obtain an optical signal.

Further, the state generation module includes a signal receiver, a fixing device, and a loading device;

the signal receiver is configured to receive the state variable modulated by the regulator;

The fixing device is used to fix the state generating module and the optical cable;

The loading device is arranged on the fixing device, and is used for loading the state variable onto the optical cable.

Further, the state generation module further includes an excitation unit provided on the loading device, which is used to load the state variable onto the optical cable, and the optical cable undergoes periodic vibration under the influence of the state variable. deformation.

Further, the information input module adopts a sensor, and the sensor is one of a mechanical sensor, an electrical sensor, a magnetic sensor, a thermal sensor, an acoustic sensor, a gas sensor, a temperature sensor, an ion sensor, a biological sensor, and a biochemical sensor or more.

One or more non-volatile storage media storing computer-readable instructions that, when executed by one or more processors, cause one or more processors to perform the following steps:

The communication terminal modulates the information to be transmitted into a state variable through the regulator; the state variable acts on the optical cable through the loading device, and the optical fiber in the optical cable is affected by the state variable and changes its state;

the base station receives an optical signal in the optical fiber; and

The base station demodulates the state variables to obtain information to be transmitted.

Further, the optical signal includes a backscattered optical signal; when the computer readable instructions are executed by the processor, the following steps are also performed:

Further, when the computer readable instructions are executed by the processor, the following steps are also performed:

Further, the information to be transmitted is digital communication information; when the computer readable instructions are executed by the processor, the following steps are also performed:

The information to be transmitted is digital communication information;

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features and advantages of the application will be apparent from the description, drawings, and claims.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

FIG. 1 is a schematic structural diagram of a communication system in an embodiment of the present application;

FIG. 2 is a block diagram of a base station in an embodiment of the present application;

FIG. 3 is a schematic diagram of an architecture of a communication terminal in a communication system in an embodiment of the present application;

Fig. 4 is a schematic diagram of a discrete mirror model in a sensing fiber.

Explanation of the serial numbers of the attached drawings: 401-mirror; 402 discrete components

Detailed ways

In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and/or components, but does not exclude one or more other features. , whole, step, operation, element, component and/or the presence or addition of a collection thereof.

It should also be understood that the terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural referents unless the context clearly dictates otherwise.

It should also be further understood that the term "and/or" used in the description of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations .

As shown in Figure 1, a system using optical fiber as a communication medium consists of a base station and several terminals covered by the base station. A base station (A terminal) is installed on one side of the optical cable, and a base station (Z terminal) can also be installed on the other side. Without setting up a base station, due to the existence of a communication medium, traditionally, the terminal will directly establish communication with the base station through an optical fiber. However, the inventor found in actual research that there are certain limitations in directly using the traditional optical fiber communication technology to establish the above-mentioned communication between the base station and the terminal, specifically the following aspects:

1) Cutting and splicing of optical fibers requires certain tools, equipment and techniques.

Due to the fragility and precision of optical fibers, the cutting and connection of optical fibers requires special tools, equipment and technology. The construction of optical networks requires high technical requirements for personnel and equipment. Therefore, optical fiber communication is rarely used underground, underwater, and overhead. Terminal communication data access in such environments.

2) Cutover and coupling are inflexible.

Traditional optical communication needs to inject information-modulated light into the optical fiber, but optical fiber cutover and coupling are not flexible, so the construction of optical communication terminals connected to the optical network is difficult and the equipment cost is high, so optical fiber communication is rarely used in the bus Class distributed communication scenarios.

3) There is a problem of power supply difficulties.

Traditional optical communication equipment has high requirements for power supply, so optical fiber communication terminals cannot be deployed in underground, underwater, overhead and other environments.

4) The perception and transmission errors of some physical parameters such as temperature are relatively large in existing optical cables. In many cases, qualitative analysis can only be performed based on rough data, and quantitative analysis cannot be done with accurate data. The perception and transmission accuracy of parameters is very high, so through its superposition with optical sensing technology, the precise transmission of data can be realized, and at the same time, the huge existing optical cable network can be used to expand the coverage of information transmission.

For this reason, this application proposes to apply optical fiber sensing technology to the communication between the base station and the terminal, and complete the transmission of information by converting the information to be transmitted into a form that can be recognized by the optoelectronic device of the base station terminal. In the situation where the communication network cannot achieve the ideal communication coverage, the necessary information transmission is completed; at the same time, because this communication method is non-invasive compared to optical fibers, it avoids the limitations brought about by injecting lasers into optical fibers in traditional optical communication Therefore, it can better reduce the power consumption of communication devices, and at the same time, because it does not need to cut and couple the optical fiber, it can significantly increase the service life of the optical fiber.

Continuing to refer to the communication structure in FIG. 1 , the base station of this communication structure is called a base station, which is used to generate laser light for modulation and transmit the laser light to one or more fiber cores of the optical cable. At the same time, the base station (A terminal) receives the reflected laser or the base station (Z terminal) receives the incident laser, and obtains relevant information according to the received laser signal's amplitude, phase, frequency, polarization state, energy and other characteristics; the structure of the base station is as follows As shown in Figure 2, it includes laser generation module, laser control module, laser emission module, circulator, laser receiving module, laser demodulation module, information processing module and other functional modules, wherein the laser generation module, laser control module and laser emission module constitute The laser emitting part, the laser receiving module, the laser demodulation module, and the information processing module constitute the laser receiving part. The specific functions of each module are introduced as follows:

laser generation module

The laser generation module is used to generate laser light with specific frequency, linewidth or polarization state.

Laser Control Module

The laser control module is used to control the emission frequency, emission amplitude, emission phase and polarization state of the laser. During the optical fiber transmission process, the laser has a great impact on the physical state of the optical cable/fiber, such as temperature, vibration, stress, deformation, electric field, magnetic field, etc. Sensitive, capable of modulating physical states onto this laser.

Laser emission module

The laser emitting module is used to inject laser into the optical fiber and emit it.

Laser receiver module

The laser receiving module is used to receive the laser in the optical fiber after being affected by the state variable, and convert the laser into an electrical signal.

Laser demodulation module

The laser demodulation module is used to demodulate the received electrical signal to obtain the original physical state quantity.

Information processing module

The information processing module is used to further analyze the physical state quantity, obtain the information source transmitted by the communication terminal, and obtain the information communication data from the communication terminal to the base station.

The terminal of this communication structure is called a communication terminal, which is composed of three parts: an information input module, an information modulation module, and a state generation module. The information input module is implemented in the form of a sensor, which can be one of mechanical sensors, electrical sensors, magnetic sensors, thermal sensors, acoustic sensors, gas sensors, temperature sensors, ion sensors, biosensors, and biochemical sensors. Multiple means provide multiple ways to obtain the digital communication information that the user needs to transmit. The information modulation module modulates the digital communication information into state variables (including but not limited to temperature, vibration, stress, deformation, electric field, magnetic field, etc.). The state generation module is loaded onto the optical cable according to the state variables carrying information.

Specifically, the communication terminal converts the information that needs to be transmitted to the base station through the regulator to convert the output digital communication information into state variables such as temperature, vibration, stress, deformation, electric field, magnetic field, etc. These state variables act directly or indirectly on the optical cable. The state of the optical cable changes (such as an increase in surface temperature or a change in horizontal or longitudinal displacement), thereby changing the communication parameters (such as wavelength, phase, frequency, phase, polarization state, energy, etc.) of the optical signal in the optical fiber in the cable. ) for modulation, and the modulated optical signal is transmitted back to the optoelectronic device of the base station through the optical fiber to complete the format conversion and demodulation of the signal, thereby completing the reception of the information sent by the communication terminal.

This application directly modulates the communication information to be transmitted by the communication terminal into state variables such as temperature, vibration, stress, deformation, electric field, magnetic field, etc., and uses optical sensing technology to directly modulate the above state variables into the laser in the optical fiber, so as to realize the modulation of information and transmission. Using this method can avoid the limitations brought by the traditional optical communication using photoelectric conversion, and does not need to cut and couple optical cables, which greatly reduces the difficulty of construction of the communication system. A physical point is used as an information loading point to realize distributed terminal information access. At the same time, the system can use the huge existing optical cable network to expand the coverage of information transmission, and realize the accurate transmission of information carried by different types of state variables, which has never been proposed in traditional technologies.

The communication method between the base station and the terminal provided by this application is applied to a communication system, the communication system is composed of a base station, a communication terminal and an optical cable, and the communication terminal converts the information to be transmitted into a state variable through a regulator, and the The state variable acts on the optical cable through the loading device, and the optical fiber in the optical cable is affected by the state variable to change its state, and the base station receives the optical signal in the optical fiber, and then demodulates the state variable , to obtain the information to be transmitted after demodulation.

Further, the state variable is one or more of temperature, vibration, stress, deformation, electric field, and magnetic field.

A communication system, the communication system is composed of a base station, a communication terminal and an optical cable, the communication terminal modulates the information to be transmitted into a state variable through a regulator, and the state variable acts on the optical cable through a loading device, the The state of the optical fiber in the optical cable changes due to the influence of the state variable, the base station receives the optical signal in the optical fiber, and then demodulates the state variable, and obtains information to be transmitted after demodulation.

In one embodiment, the communication system includes a base station, a communication terminal and an optical cable;

Further, the base station includes a laser generation module, a laser control module, a laser emission module, a circulator, a laser receiving module, a laser demodulation module, and an information processing module, wherein the laser generation module, the laser control module, and the laser emission module constitute the laser The transmitting part, the laser receiving module, the laser demodulation module and the information processing module constitute the receiving part of the laser;

The base station is used to generate laser light, inject laser light into the optical cable, receive the optical signal modulated by the state variable transmitted in the optical fiber, and obtain the information to be transmitted through demodulation.

Further, the communication terminal includes an information input module, an information modulation module, and a state generation module; the information input module is used to input information; the information modulation module includes a regulator, and the regulator is used to modulate the input information into the The state variable; the state generation module includes a signal receiver, a fixing device, and a loading device, the signal receiver is used to receive the state variable modulated by the regulator, and the fixing device is used to use the state generation module It is fixed with the optical cable, and the loading device is arranged on the fixing device, and is used for loading the state variable onto the optical cable.

The present invention directly modulates the communication information to be transmitted by the communication terminal into state variables such as temperature, vibration, stress, deformation, electric field, magnetic field, etc., and uses optical sensing technology to directly modulate the above state variables into the laser in the optical fiber, thereby realizing information modulation and transmission. Using this method can avoid the limitations brought by the traditional optical communication using photoelectric conversion, and does not need to cut and couple optical cables, which greatly reduces the difficulty of construction of the communication system. A physical point is used as an information loading point to realize distributed terminal information access. At the same time, the system can use the huge existing optical cable network to expand the coverage of information transmission, and realize the accurate transmission of information carried by different types of state variables, which has never been proposed in traditional technologies.

The specific embodiment of this program is given below with the state variable as the vibration signal. The communication system is composed of a base station, a communication terminal and an optical cable. The communication terminal includes an information input module, an information modulation module, and a state generation module; the information input module uses sensors for Information collection and input; the information modulation module includes a regulator, and the regulator is used to modulate the input information into a state variable; the state generation module includes a signal receiver, a fixing device, a loading device and an excitation unit, and the signal receiver is set in the communication terminal It is used to receive the vibration signal modulated by the regulator. The fixing device is arranged outside the communication terminal to fix the communication terminal and the optical cable. The fixing device is provided with a loading device; the loading device is used to apply the vibration signal received by the signal receiver; The unit is arranged on the loading device, and the vibration unit is used for vibration. Wherein, the above-mentioned part of the optical cable will change its shape after being pressed by the modulated vibration signal, thereby affecting its light transmittance, light refractive index and other parameters.

When the communication terminal needs to transmit data with the base station, the regulator modulates the information to be transmitted into a vibration signal with a specific corresponding relationship. The conversion of information into vibration signals can be used as the type of device to be protected in this application, for example, it can be an acoustic wave transducer. The data to be transmitted of the communication terminal is transformed into a state variable in the form of a vibration signal. This state variable is loaded onto the optical cable through the excitation unit of the loading device, and then the optical cable will be periodically deformed under the influence of the vibration signal. Based on the elastic-optic theory, the phase of the backscattered light at the vibration position will change, so that the total phase, amplitude and polarization state of the superimposed interference light generated in the scattering interference interval including the vibration position will change, as shown in Figure 4 , in the optical fiber, after the optical signal is reflected at the reflector 401, after experiencing the action of multiple scattering elements 402, it continues to scatter in the optical fiber; the backward Rayleigh scattering of the mth scattering element 402 at the distance mΔL Light can be represented as follows:

Among them, E ₀ is the initial light intensity, E _back is the back scattered light, P _k , r _k , and Φ _k respectively represent the polarization coefficient, the backward Rayleigh scattering coefficient and the initial phase of the kth scattering point in the scattering interference interval, All obey random distribution, and ΔΦ _k is the phase change of the kth scattering point caused by vibration. The amplitude, phase, and polarization state of the received backscattered light are detected by the photodetector on the base station side and the subsequent processing unit, based on the direct and cyclostationary relationship between the amplitude, phase, and polarization state parameters and the state variables, etc. Corresponding relationship, the current value of the state variable can be known, and then the data sequence transmitted by the communication terminal can be obtained.

Since the structure of the base station, communication terminal and optical cable in the above-mentioned communication system is relatively easy to realize and can adapt to different external working environments, it has great use value in practical engineering applications; in addition, the use of optical sensing technology to realize signal The modulation and transmission of source data solves the defects of laser injection traditional optical communication, and uses optical cables for non-injection information modulation and transmission, which is especially suitable for the application scenarios of distributed sensor networks.

Using this method can avoid the limitations brought about by injecting laser into the optical fiber in traditional optical communication. It does not need to cut, split, and couple the optical fiber, which greatly reduces the difficulty of optical communication construction. At the same time, the entire optical cable body can be Each physical point of the network is used as an information loading point to realize distributed terminal access.

The communication system based on optical sensing technology is very suitable for the collection and return of sensing data in underground, underwater, overhead and other environments, and can realize a distributed access and ready-to-use sensor communication network.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated module/unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments in the present application can also be completed by instructing related hardware through computer programs. The computer programs can be stored in a computer-readable storage medium, and the computer When the program is executed by the processor, the steps in the above-mentioned various method embodiments can be realized. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a removable hard disk, a magnetic disk, an optical disk, a computer memory, and a read-only memory (Read-Only Memory, ROM) , random access memory (Random Access Memory, RAM), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, computer-readable media Excluding electrical carrier signals and telecommunication signals.

In one embodiment of the present application, one or more non-volatile storage media store computer-readable instructions, and when the computer-readable instructions are executed by one or more processors, one or more processors are made to perform the following steps :

the base station receives an optical signal in the optical fiber; and

Wherein, the state variable is one or more of a temperature signal, a vibration signal, a stress signal, a deformation signal, an electric field signal, and a magnetic field signal.

Wherein, the vibration signal is used to periodically deform the shape of the optical cable.

Wherein, the state variable is used to change the state of the optical cable, thereby modulating the communication parameters of the optical signal of the optical fiber in the optical cable; the communication parameters include wavelength, phase, frequency, phase, polarization state and energy at least one of the

The information to be transmitted is digital communication information;

The base station is used to generate laser light, inject laser light into the optical cable, receive the optical signal modulated by the state variable transmitted in the optical fiber, and obtain the state variable through demodulation.

The communication terminal acquires information through the information input module, modulates the information into the state variable through the regulator, and the information receiver receives the state variable and loads it onto the optical cable through the loading device to form a The modulation of the optical signal in the optical fiber.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing related hardware through computer-readable instructions, and the computer-readable instructions can be stored in a non-volatile computer In the readable storage medium, the computer-readable instructions may include the processes of the embodiments of the above-mentioned methods when executed. Wherein, any references to memory, storage, database or other media used in the various embodiments provided in the present application may include non-volatile and/or volatile memory. Nonvolatile memory can include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Chain Synchlink DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc. It should be noted that the content contained in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computers can Reading media does not include electrical carrier signals and telecommunication signals.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still implement the foregoing embodiments Modifications to the technical solutions recorded in the examples, or equivalent replacement of some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should be included in Within the protection scope of this application.

Claims

A communication method between a base station and a terminal, applied to a communication system, the communication system is composed of a base station, a communication terminal and an optical cable, and the communication method includes:

The communication terminal modulates the information to be transmitted into a state variable through the regulator; the state variable is used to act on the optical cable through the loading device, and the optical fiber in the optical cable is affected by the state variable to change its state;

the base station receives the optical signal of the optical fiber; and

The base station demodulates the state variable to obtain the information to be transmitted.
The method according to claim 1, wherein the state variable is one or more of a temperature signal, a vibration signal, a stress signal, a deformation signal, an electric field signal, and a magnetic field signal.
The method according to claim 2, wherein the vibration signal is used to periodically deform the shape of the optical cable.
The method according to claim 1, wherein the state variable is used to change the state of the optical cable, thereby modulating the communication parameter of the optical signal of the optical fiber in the optical cable; the communication parameter includes a wavelength At least one of , phase, frequency, phase, polarization state, and energy.
The method according to claim 1, wherein the optical signal comprises a backscattered optical signal;

The base station demodulates the state variable, and the step of obtaining the information to be transmitted includes:

The photoelectric device and information processing module of the base station detect the amplitude, phase, and polarization state of the backscattered optical signal, based on the direct and cyclostationary relationship between the amplitude, phase, and polarization state and the state variable According to the corresponding relationship, the current value of the state variable is obtained to obtain the information to be transmitted.
The method according to claim 1, wherein the base station demodulates the state variable, and the step of obtaining the information to be transmitted comprises:

The photoelectric device of the base station converts the optical signal of the optical fiber into an electrical signal;

The laser demodulation module of the base station demodulates the electrical signal to obtain the state variable; and,

The information processing module of the base station analyzes the state variables to obtain the information to be transmitted.
The method according to claim 1, wherein the information to be transmitted is digital communication information;

The step of the communication terminal modulating the information to be transmitted into a state variable through the regulator includes:

The communication terminal converts the digital communication information into a vibration signal through the adjuster; and,

The communication terminal loads the vibration signal onto the optical cable through the loading device, so that the optical fiber in the optical cable undergoes periodic deformation under the influence of the vibration signal, thereby affecting the optical signal of the optical fiber in the optical cable The communication parameters are modulated.
A communication system, including a base station, a communication terminal and an optical cable;

The communication terminal is used to modulate the information to be transmitted into a state variable through the regulator, and apply the state variable to the optical cable to change the state of the optical cable, thereby modulating the optical fiber in the optical cable The communication parameters of the optical signal;

The base station is used to receive the optical signal in the optical fiber, and perform format conversion and demodulation on the optical signal in the optical fiber to obtain information to be transmitted.
The communication system according to claim 8, wherein the base station comprises:

a laser emitting section for generating laser light for modulation and injecting said laser light into said optical fiber;

The receiving part of the laser is used to receive the optical signal transmitted in the optical fiber and modulated by the state variable, and obtain the information to be transmitted after format conversion and demodulation.
The communication system according to claim 9, wherein the receiving part of the laser comprises:

a laser receiving module, configured to receive the optical signal transmitted in the optical fiber and modulated by the state variable, and convert the optical signal into an electrical signal;

The laser demodulation module is used to extract the characteristic parameters in the electrical signal, and demodulate the electrical signal based on the characteristic parameters to obtain the original physical state quantity, wherein the characteristic parameters include at least amplitude, phase, frequency, polarization state and energy;

The information processing module is configured to further analyze the original physical state quantity, obtain the information source transmitted by the communication terminal, and obtain the information to be transmitted from the communication terminal to the base station.
The communication system according to any one of claims 8-10, wherein the communication terminal comprises an information input module, an information modulation module, and a state generation module;

The information input module is used to obtain information to be transmitted;

The information modulation module is used to modulate the information to be transmitted into the state variable;

The state generation module is used to load the state variable onto the optical cable to form a modulation of the laser in the optical fiber to obtain an optical signal.
The communication system according to claim 11, wherein the information modulation module comprises a regulator;

The regulator is used to modulate the information to be transmitted into a vibration signal with a specific corresponding relationship;

The state generation module is used to load the vibration signal onto the optical cable, and the optical cable undergoes periodic deformation under the influence of the vibration signal, so as to modulate the communication parameters of the laser of the optical fiber in the optical cable, get light signal.
The communication system according to claim 12, wherein the information to be transmitted is digital communication information;

the conditioner is used to transform the digital communication information into a vibration signal;

The state generating module is used to apply the vibration signal to the optical cable directly or indirectly, the state of the optical fiber in the optical cable changes under the action of the state variable, and the optical fiber The communication parameters of the laser are modulated to obtain an optical signal.
The communication system according to claim 13, wherein the state generation module comprises a signal receiver, a fixing device and a loading device;

the signal receiver is configured to receive the state variable modulated by the regulator;

The fixing device is used to fix the state generating module and the optical cable;

The loading device is arranged on the fixing device, and is used for loading the state variable onto the optical cable.
The communication system according to claim 14, wherein the state generating module further comprises an excitation unit provided on the loading device, for loading the state variable onto the optical cable, and the optical cable Periodic deformations take place under the influence of the state variable.
The communication system according to claim 11, wherein the information input module adopts a sensor, and the sensor is a mechanical sensor, an electrical sensor, a magnetic sensor, a thermal sensor, an acoustic sensor, a gas sensor, a temperature sensor, an ion sensor One or more of biosensors, biochemical sensors.
One or more non-volatile storage media storing computer-readable instructions that, when executed by one or more processors, cause one or more processors to perform the following steps:

The communication terminal modulates the information to be transmitted into a state variable through the regulator; the state variable is used to act on the optical cable through the loading device, and the optical fiber in the optical cable is affected by the state variable to change its state;

the base station receives an optical signal in the optical fiber; and

The base station demodulates the state variables to obtain information to be transmitted.
The storage medium according to claim 17, wherein the optical signal comprises a backscattered optical signal; when the computer readable instructions are executed by the processor, the following steps are further performed:

The photoelectric device and information processing module of the base station detect the amplitude, phase, and polarization state of the backscattered optical signal, based on the direct and cyclostationary relationship between the amplitude, phase, and polarization state and the state variable According to the corresponding relationship, the current value of the state variable is obtained to obtain the information to be transmitted.
The storage medium according to claim 17, wherein when the computer-readable instructions are executed by the processor, the following steps are also performed:

The photoelectric device of the base station converts the optical signal of the optical fiber into an electrical signal;

The laser demodulation module of the base station demodulates the electrical signal to obtain the state variable; and,

The information processing module of the base station analyzes the state variables to obtain the information to be transmitted.
The storage medium according to claim 17, wherein the information to be transmitted is digital communication information; when the computer readable instructions are executed by the processor, the following steps are also performed:

The information to be transmitted is digital communication information;

The step of the communication terminal modulating the information to be transmitted into a state variable through the regulator includes:

The communication terminal converts the digital communication information into a vibration signal through the adjuster; and,

The communication terminal loads the vibration signal onto the optical cable through the loading device, so that the optical fiber in the optical cable undergoes periodic deformation under the influence of the vibration signal, thereby affecting the optical signal of the optical fiber in the optical cable The communication parameters are modulated.