Intelligent reflective surface assisted ship receiving signal enhancement method, system and device

Abstract

The present invention provides a method, system and device for enhancing a ship receiving signal assisted by an intelligent reflective surface, wherein the method comprises: obtaining the ship receiving signal strength, and comparing the ship receiving signal strength with a preset strength threshold, wherein if the ship receiving signal strength is less than the strength threshold, obtaining a receiving antenna height value, adjusting the arrangement height and transmission phase of the ship-side intelligent reflective surface based on the receiving antenna height value so that the transmission signal is received by the receiving antenna; or adjusting the propagation height and propagation angle of the transmission signal based on the shore-based intelligent reflective surface so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation. The present invention changes the propagation angle of the signal through the intelligent reflective surface, which not only allows more signals to be captured by the waveguide layer, but also allows more signals after leaving the waveguide layer to reach the ship antenna, especially in long-distance propagation scenarios, which can support normal communication of the ship.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, system and device for enhancing ship receiving signals assisted by an intelligent reflecting surface. Background Art

[0002] In recent years, the research on marine broadband communications has become a hot topic in academia and industry, and my country's marine activities are increasing and the marine economy is growing stronger.

[0003] However, marine communications face challenges that are very different from those on land, including sparse scattering, wave motion, and waveguide effects. And with the development of communication technology, people are constantly improving communication frequency bands to achieve faster communication. The use of higher frequency bands means that more dense communication base stations need to be deployed to ensure signal transmission. However, compared with the densely populated land environment, the marine communication environment is vast and sparsely populated, and high-frequency signals are easily affected by the ocean evaporation effect, resulting in accelerated attenuation of scattering effects during signal propagation. Based on this, the current work of researchers focuses on testing the communication range that land base stations can cover at sea under existing frequency bands. However, the communication coverage of shore-based base stations is limited, the ocean floating relay is easily affected by waves and has a high damage rate, and satellite communications are expensive, with fewer available frequency bands, slower transmission rates, and larger delays. Summary of the invention

[0004] The object of the present invention is to provide a method, system and device for enhancing ship receiving signals assisted by an intelligent reflective surface, so as to solve the problem of poor communication signals when the existing ship is far away from a shore-based base station.

[0005] In a first aspect, the present application provides a method for enhancing a ship receiving signal assisted by an intelligent reflective surface. The method for enhancing a ship receiving signal assisted by an intelligent reflective surface comprises:

[0006] Obtain the ship receiving signal strength, and compare the ship receiving signal strength with a preset strength threshold, wherein if the ship receiving signal strength is less than the strength threshold, then

[0007] Acquire a receiving antenna height value, and adjust the arrangement height and transmission phase of the smart reflector on the ship side based on the receiving antenna height value so that the transmission signal is received by the receiving antenna; or

[0008] Based on the smart reflective surface on the shore side, the propagation height and propagation angle of the transmission signal are adjusted so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates; or

[0009] Based on the smart reflective surface on the shore side, the propagation height and propagation angle of the transmission signal are adjusted so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates, and the height value of the receiving antenna is obtained. Based on the height value of the receiving antenna, the arrangement height and transmission phase of the smart reflective surface on the ship side are adjusted so that the transmission signal is received by the receiving antenna.

[0010] Among them, when the signal strength received by the ship is weak, the smart reflective surface on the shore side can be considered for signal enhancement. First, it is necessary to collect meteorological information at the location of the transmitting antenna to calculate the height of the waveguide layer, so that the smart reflective surface carried by the drone is deployed near the height of the waveguide layer, and the propagation angle / propagation height of the signal is changed so that the signal can be propagated in the waveguide layer with lower path loss; then, when the signal is ready to leave the waveguide layer, the smart reflective surface on the ship side is used to change the propagation angle of the signal so that more signals reach the receiving antenna. By combining waveguides and smart reflective surfaces, not only more signals are captured by the waveguide layer, but also more signals after leaving the waveguide layer reach ship users. Especially in long-distance propagation scenarios, it can support normal communication of ships.

[0011] In a possible implementation of the present application, if the ship receiving signal strength is higher than or equal to the strength threshold, the transmission signal is directly received based on the receiving antenna.

[0012] In a possible implementation of the present application, adjusting the arrangement height and transmission phase of the smart reflective surface on the ship side based on the height value of the receiving antenna so that the transmission signal is received by the receiving antenna specifically includes:

[0013] Adjusting the arrangement height of the smart reflective surface on the ship side based on the height value of the receiving antenna;

[0014] The transmission phase of the ship-side smart reflector is adjusted to change the propagation angle of the transmission signal so that the transmission signal is received by the receiving antenna.

[0015] In a possible implementation of the present application, adjusting the propagation height and propagation angle of the transmission signal based on the shore-side intelligent reflection surface so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates specifically includes:

[0016] Obtain the height value of the transmitting antenna and the height value range of the waveguide layer where the transmitting antenna is located;

[0017] Determine whether the transmitting antenna height value is within the height value range, wherein:

[0018] If the height value of the transmitting antenna is not within the height value range, the propagation angle and propagation height of the transmission signal are changed based on the smart reflection surface on the shore side so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates;

[0019] If the height value of the transmitting antenna is within the height value range, the propagation angle of the transmission signal is changed based on the smart reflection surface on the shore side so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates.

[0020] In a possible implementation of the present application, the method further includes acquiring meteorological data at the location of the transmitting antenna to calculate a waveguide strength value, and calculating a waveguide trap angle value based on the waveguide strength value, wherein the propagation angle of the transmission signal is changed so that the absolute value of the incident angle of the transmission signal entering the waveguide layer is less than or equal to the waveguide trap angle value.

[0021] In a possible implementation of the present application, the arrangement height of the smart reflective surface on the ship side is changed and / or the propagation height of the transmission signal is changed based on a preset controllable height device, wherein the controllable height device includes at least a drone.

[0022] Among them, the intelligent reflective surface is arranged by drones, which has strong maneuverability and can be changed in time according to needs. It has wide applicability and is easy to use.

[0023] In a second aspect, the present application provides a ship receiving signal enhancement system assisted by an intelligent reflecting surface, and the ship receiving signal enhancement system assisted by an intelligent reflecting surface includes:

[0024] An acquisition module is used to obtain the signal strength received by the ship;

[0025] A judgment module, used for judging the received signal strength and a preset strength threshold;

[0026] A control module, wherein when the signal strength received by the ship is less than the strength threshold, a receiving antenna height value is obtained, and the arrangement height and transmission phase of the ship-side intelligent reflection surface are adjusted based on the receiving antenna height value so that the transmission signal is received by the receiving antenna; or the propagation height and propagation angle of the transmission signal are adjusted based on the shore-based intelligent reflection surface so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation, or the propagation height and propagation angle of the transmission signal are adjusted based on the shore-based intelligent reflection surface so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation, and the receiving antenna height value is obtained, and the arrangement height and transmission phase of the ship-side intelligent reflection surface are adjusted based on the receiving antenna height value so that the transmission signal is received by the receiving antenna.

[0027] In a third aspect, the present application provides a computer-readable storage medium as described above, on which a computer program is stored, and when the program is executed by a processor, the method for enhancing ship receiving signals assisted by the intelligent reflecting surface is implemented.

[0028] In a fourth aspect, the present application provides an electronic device as mentioned above, comprising: a processor and a memory; wherein the memory is used to store a computer program, and the processor is used to load and execute the computer program so that the electronic device executes the method for enhancing ship reception signals assisted by the intelligent reflecting surface.

[0029] In a fifth aspect, the present application provides a ship receiving signal enhancement device assisted by an intelligent reflective surface.

[0030] In this application, the ship receiving signal enhancement device assisted by the intelligent reflective surface includes:

[0031] Electronic devices as described above; and

[0032] An antenna, communicatively connected to the electronic device, the antenna comprising a receiving antenna and a transmitting antenna, wherein the transmitting antenna is used to send a transmission signal, and the receiving antenna is used to receive the transmission signal;

[0033] An intelligent reflecting surface, comprising a ship-side intelligent reflecting surface and a shore-side intelligent reflecting surface, wherein the ship-side intelligent reflecting surface is located at one side of the receiving antenna, and the shore-side intelligent reflecting surface is located at one side of the transmitting antenna, and the intelligent reflecting surface is used to change the propagation direction of the transmission signal, wherein the propagation direction includes a propagation height and a propagation angle;

[0034] A controllable height device is fixedly connected to the smart reflective surface and is used to adjust the arrangement height of the smart reflective surface and / or the propagation height of the transmission signal.

[0035] As described above, the method, system and device for enhancing the ship receiving signal assisted by the intelligent reflecting surface of the present invention, by using the intelligent reflecting surface to change the signal propagation angle and propagation height, allows the radio electromagnetic wave signal to propagate in the waveguide layer with less attenuation or the intelligent reflecting surface directly reflects the signal to the ship's receiving antenna, thereby enhancing the receiving signal of the ship traveling far from the shore and ensuring the normal communication of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A diagram showing the method steps of a method for enhancing a ship receiving signal assisted by a smart reflective surface according to an embodiment of the present invention;

[0037] Figure 2 A schematic diagram showing the arrangement of smart reflective surfaces in an embodiment of a method for enhancing a ship receiving signal assisted by a smart reflective surface of the present invention;

[0038] Figure 3 A schematic diagram showing the arrangement of a smart reflective surface in another embodiment of the method for enhancing a ship receiving signal assisted by a smart reflective surface of the present invention;

[0039] Figure 4 A schematic diagram showing the arrangement of a smart reflective surface in another embodiment of the method for enhancing a ship receiving signal assisted by a smart reflective surface of the present invention;

[0040] Figure 5 It is a schematic structural diagram of a ship receiving signal enhancement system assisted by a smart reflective surface according to an embodiment of the present invention;

[0041] Figure 6 Shown is a schematic diagram of the structure of an electronic device in one embodiment of the present invention;

[0042] Figure 7 It is a schematic structural diagram of a smart reflective surface-assisted ship receiving signal enhancement device in one embodiment of the present invention.

[0043] Component number description

[0044] Steps S102 to S112

[0045] 50 Intelligent reflective surface assisted ship reception signal enhancement system

[0046] 51 Get Module

[0047] 52 Judgment module

[0048] 53 Control module

[0049] 70 Intelligent reflective surface-assisted ship reception signal enhancement device

[0050] 71 Electronic equipment

[0051] 721 Receiving Antenna

[0052] 722 Transmitting Antenna

[0053] 731 Ship side intelligent reflective surface

[0054] 732 Shore-based intelligent reflector

[0055] 74 Controllable height equipment DETAILED DESCRIPTION

[0056] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0057] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0058] In ship communication systems, currently commonly used communication methods include shore-based base station communication, ocean buoy relay communication, and satellite communication. However, all three methods have the problems of high maintenance cost, difficulty in regulation, and slow transmission rate. In this regard, the present invention proposes a ship receiving signal enhancement method assisted by an intelligent reflective surface. The method uses the characteristics of the intelligent reflective surface, which is passive, has multiple reflection units, is low-cost and easy to deploy, and can adjust the signal propagation angle and height, to enhance the ship receiving signal, thereby ensuring that the ship can still maintain normal communication when sailing far from the shore.

[0059] See also Figure 1 In one embodiment of the invention, the method for enhancing ship receiving signals assisted by a smart reflective surface of the present invention comprises the following steps:

[0060] Step S102, obtaining the ship receiving signal strength;

[0061] Step S104, determining the magnitude of the ship receiving signal strength and a preset strength threshold;

[0062] Step S106, if the ship receiving signal strength is higher than or equal to the strength threshold, directly receiving the transmission signal based on the receiving antenna;

[0063] Step S108, if the ship receiving signal strength is less than the strength threshold, obtaining a receiving antenna height value, and adjusting the arrangement height and transmission phase of the ship side smart reflector based on the receiving antenna height value so that the transmission signal is received by the receiving antenna;

[0064] Step S110, if the ship receiving signal strength is less than the strength threshold, adjusting the propagation height and propagation angle of the transmission signal based on the shore-side intelligent reflection surface so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates;

[0065] Step S112: If the signal strength received by the ship is less than the strength threshold, the propagation height and propagation angle of the transmission signal are adjusted based on the smart reflection surface on the shore side so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates, and the height value of the receiving antenna is obtained. Based on the height value of the receiving antenna, the arrangement height and transmission phase of the smart reflection surface on the ship side are adjusted so that the transmission signal is received by the receiving antenna.

[0066] It should be noted that, in this embodiment, the professional and technical names involved in the technical solution of the present application are, for example, waveguide layer, intelligent reflecting surface, among which the waveguide effect is a special atmospheric phenomenon. The electromagnetic waves propagating in the near-ground layer are affected by atmospheric refraction and their propagation trajectory bends toward the ground. When the curvature exceeds the curvature of the earth's surface, the electromagnetic waves will be partially trapped in a thin layer of atmosphere of a certain thickness (i.e., the waveguide layer). The captured radio electromagnetic wave signals will be confined in an atmosphere of a certain thickness and propagate forward through reflections back and forth at the upper and lower boundaries, just like propagating in a metal waveguide tube.

[0067] Correspondingly, the intelligent reflector IRS is composed of a large number of low-cost, sub-wavelength structured, controllable electromagnetic elements (superatoms) artificially integrated on a plane, and the parameters such as the on-off, capacitance, resistance, inductance, etc. of the electromagnetic elements are controlled by software or hardware, so as to achieve the control of the characteristics such as the phase and amplitude of the electromagnetic wave, and finally achieve the purpose of reconstructing the wireless propagation environment and providing the system with new spatial degrees of freedom. Compared with traditional active relays, the intelligent reflector device has no radio frequency, signal processing and other parts, and has lower implementation complexity and lower cost. In addition, the hardware cost and power consumption of the intelligent reflector are low. Secondly, the intelligent reflector operates in full-duplex mode, which better avoids the problems of antenna amplification noise and signal self-interference. Then, the intelligent reflector is usually small in size, light in weight and thin, so it is more flexible and convenient to deploy and replace, thus providing great flexibility and compatibility for existing wireless communication networks.

[0068] Specifically, during the movement of the ship, the ship's received signal strength is obtained, and the size of the ship's received signal strength and the preset strength threshold is determined, wherein the preset strength threshold is determined according to the sensitivity of different equipment, and in specific applications, it can be in the range of "85-115dbm". Specifically, if the ship's received signal strength is higher than or equal to the strength threshold, the transmission signal is directly received based on the receiving antenna; if the ship's received signal strength is less than the strength threshold, there are three solutions, one of which is to obtain the height value of the receiving antenna, and adjust the arrangement height and transmission phase of the ship's side smart reflector based on the height value of the receiving antenna so that the transmission signal is received by the receiving antenna; the second is based on the shore-based side The intelligent reflecting surface adjusts the propagation height and propagation angle of the transmission signal so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation. The third is a combination of the first two, that is, based on the intelligent reflecting surface on the shore side, the propagation height and propagation angle of the transmission signal are adjusted so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation, and at the same time, the height value of the receiving antenna is obtained, and the arrangement height and transmission phase of the intelligent reflecting surface on the ship side are adjusted based on the height value of the receiving antenna so that the transmission signal is received by the receiving antenna, wherein the arrangement height of the intelligent reflecting surface on the ship side is changed based on a preset controllable height device and / or the propagation height of the transmission signal is changed, wherein the controllable height device at least includes a drone.

[0069] Furthermore, if Figure 2 As shown, when the ship receiving signal strength is less than the strength threshold, the drone carries the ship side intelligent reflective surface, and uses the intelligent reflective surface to directly transmit the radio electromagnetic wave signal that is transmitted in the waveguide layer of the transmitting antenna to the ship receiving antenna. At this time, the radio electromagnetic wave signal propagating in the free space is concentrated to the ship receiving antenna by the ship side intelligent reflective surface, so that the signal received by the ship receiving antenna will be stronger than before.

[0070] Furthermore, if Figure 3 As shown, when the signal strength received by the ship is less than the strength threshold, a shore-based intelligent reflector is carried by a drone and deployed at the transmitting antenna of the shore-based base station. The transmitting signal is induced into the waveguide layer by the intelligent reflector for signal transmission, and the low attenuation of the signal propagated in the waveguide layer is used for propagation. At this time, the attenuation of the signal transmitted in the waveguide layer is significantly reduced compared to the radio electromagnetic wave signal propagating in free space, so the signal received at the ship receiving antenna will be improved compared to the previous signal strength.

[0071] Furthermore, if Figure 4As shown, when the signal strength received by the ship is less than the intensity threshold, the shore-based intelligent reflector is carried by an unmanned aerial vehicle and deployed at the transmitting antenna of the shore-based base station. The transmitting signal is induced into the waveguide layer for signal transmission by the intelligent reflector. The ship-side intelligent reflector is carried by an unmanned aerial vehicle and the radio electromagnetic wave signal transmitted in the waveguide layer in the transmitting antenna is directly transmitted to the ship's receiving antenna by the intelligent reflector. Through double insurance, the signal strength received at the ship's receiving antenna is improved compared with the previous signal strength.

[0072] Among them, Figure 4 As shown, there are two communication links from the transmitting antenna to the receiving antenna. One is that the signal reaches the receiving antenna directly, and the other is the waveguide enhancement path through the smart reflector. Assume that the channel coefficient of the direct path is h d , the channel coefficient of the waveguide enhanced path of the UAV equipped with a smart reflector is h IRS , so the received signal at the ship is:

[0073] y(t)=(h d +h IRs )x(t)+n o ;

[0074] Among them, x(t) represents the transmitted signal, represents Gaussian white noise.

[0075] The waveguide enhancement path of the drone equipped with the smart reflector is mainly composed of three parts. The first part is that the signal is freely attenuated in space. The second part is that the signal adjusted by the smart reflector is captured by the waveguide layer and propagates in the waveguide layer. The third part is that the signal propagated in the waveguide layer adjusted by the smart reflector is changed in propagation height and propagation angle to be transmitted to the receiving antenna. Assume that the channel coefficient of the signal propagating in free space is The channel coefficient of the signal propagating in the waveguide layer after being adjusted by the smart reflector is The signal in the waveguide layer is adjusted by the smart reflector surface and transmitted to the receiving antenna through the channel coefficient: When the channel coefficient of the entire link is h IRS It can be expressed as:

[0076]

[0077] in, and Represents a diagonal matrix, reflecting the changing properties of phase and amplitude, α i ∈[0, 1] and β i ∈[0, 1], represents the coefficient of the change of the fixed amplitude caused by the i-th phase shift, θ i and Indicates the phase change of the reflected signal.

[0078] Further, in one embodiment of the invention, adjusting the arrangement height and transmission phase of the smart reflective surface on the ship side based on the height value of the receiving antenna so that the transmission signal is received by the receiving antenna specifically includes:

[0079] Adjusting the arrangement height of the smart reflective surface on the ship side based on the height value of the receiving antenna;

[0080] The transmission phase of the ship-side smart reflector is adjusted to change the propagation angle of the transmission signal so that the transmission signal is received by the receiving antenna.

[0081] It should be noted that, in this embodiment, in order to allow the radio electromagnetic wave signal transmitted through the waveguide layer to be received by the receiving antenna more, the radio electromagnetic wave signal is the transmission signal, and the height value of the receiving antenna needs to be obtained, so as to adjust the arrangement height of the ship side smart reflective surface based on the height value of the receiving antenna, referring to Figure 2 After the smart reflective surface on the ship side is arranged at a corresponding height, the transmission phase is adjusted to change the propagation angle of the transmission signal so that the transmission signal is received by the receiving antenna.

[0082] Further, in one embodiment of the invention, adjusting the propagation height and propagation angle of the transmission signal based on the shore-side smart reflector so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates specifically includes:

[0083] Obtain the height value of the transmitting antenna and the height value range of the waveguide layer where the transmitting antenna is located;

[0084] Determine whether the transmitting antenna height value is within the height value range, wherein:

[0085] If the height value of the transmitting antenna is not within the height value range, the propagation angle and propagation height of the transmission signal are changed based on the smart reflection surface on the shore side so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates;

[0086] If the height value of the transmitting antenna is within the height value range, the propagation angle of the transmission signal is changed based on the smart reflection surface on the shore side so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates.

[0087] It should be noted that, in this embodiment, when arranging the smart reflective surface on the shore side, it is necessary to make a judgment based on the height value of the transmitting antenna and the height value range of the waveguide layer where the transmitting antenna is located. If the height value of the transmitting antenna is not within the height value range, the propagation angle and propagation height of the transmission signal are changed based on the smart reflective surface on the shore side so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation, that is, the propagation height of the transmission signal is first changed by using the smart reflective surface on the shore side so that the transmission signal can enter the waveguide layer height value range, and then the propagation angle of the transmission signal is changed by using the smart reflective surface on the shore side so that the transmission signal enters the waveguide layer for propagation. In this scenario, it can be seen that the smart reflective surface on the shore side includes at least two smart reflective surfaces.

[0088] Further, if the height value of the transmitting antenna is within the height value range, the propagation angle of the transmission signal is changed based on the smart reflection surface on the shore side so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation. Since the height value of the transmitting antenna on the shore side is within the corresponding waveguide layer height value range, there is no need to change the propagation height, only the propagation angle needs to be changed. The propagation angle of the transmission signal is directly changed by using the smart reflection surface on the shore side so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation. In this scenario, it can be known that the smart reflection surface on the shore side includes at least one smart reflection surface.

[0089] Furthermore, in one embodiment of the invention, the method also includes obtaining meteorological data at the location of the transmitting antenna to calculate a waveguide strength value, and calculating a waveguide trap angle value based on the waveguide strength value, wherein the propagation angle of the transmission signal is changed so that the absolute value of the incident angle of the transmission signal entering the waveguide layer is less than or equal to the waveguide trap angle value.

[0090] It should be noted that, in the present embodiment, the above embodiment describes changing the propagation angle of the transmission signal so that the transmission signal can propagate in the waveguide layer, wherein, if the transmission signal (i.e., the radio electromagnetic wave signal) needs to propagate in the waveguide layer, it means that the transmission signal needs to be captured by the waveguide layer. Specifically, the waveguide trapping angle value is calculated by the waveguide intensity value, and the propagation angle of the transmission signal is changed so that the absolute value of the incident angle of the transmission signal entering the waveguide layer is less than or equal to the waveguide trapping angle value, thereby ensuring that the transmission signal is trapped in the waveguide layer.

[0091] Furthermore, the waveguide strength value is calculated based on the meteorological data, wherein the height of the waveguide layer is first calculated, and the expression is:

[0092]

[0093]

[0094] Where M is the atmospheric refractive index, N is the atmospheric refractive index, h is the height above the ground, R is the radius of the earth, T is the temperature, P is the pressure, and e is the water vapor pressure. Substitute the N expression into the M expression and take the derivative of the M expression. When When the height h above the ground is the height h of the waveguide layer w It can be seen that the height of the waveguide layer can be calculated by three meteorological parameters: temperature, pressure and water vapor pressure. ΔM is the waveguide strength value. Correspondingly, the expression of the waveguide trap angle is The meteorological data therefore include at least temperature, pressure and water vapor pressure.

[0095] The protection scope of the method for enhancing ship receiving signals assisted by the intelligent reflecting surface described in the embodiment of the present application is not limited to the execution order of the steps listed in the present embodiment. All solutions implemented by adding, reducing or replacing steps in the prior art based on the principles of the present application are included in the protection scope of the present application.

[0096] The application of the intelligent reflective surface mentioned in the ship receiving signal enhancement assisted by an intelligent reflective surface proposed in this application is the most important protection point of the present invention. The signal of the receiving antenna mainly comes from two paths, including the path where the signal directly reaches the receiving antenna and the waveguide path assisted by the intelligent reflective surface. First, the strength of the ship's receiving signal is judged. When the strength of the receiving signal is unstable or weakened and it is difficult to maintain normal communication, the parameter information of the height of the ship's receiving antenna is collected. Secondly, meteorological data is collected. Specifically, it can be based on the meteorological data published by the meteorological website or the sensor mobile phone carried by the ship itself, and the current waveguide layer height and waveguide strength are calculated based on the meteorological data. When the ship's receiving signal needs to be enhanced, three methods are mainly used: the first method is to compare the calculated waveguide height with the receiving antenna height. When the receiving antenna height is located in the waveguide layer, the drone equipment can be released from the ship, and the drone and other height-adjustable equipment are used to carry the intelligent reflective surface to the height of the waveguide layer, and the propagation angle and propagation height of the transmitted signal are adjusted so that the transmitted signal can be propagated in the waveguide layer; the second is to directly adjust the intelligent reflective surface deployed on the shore side. The intelligent reflective surface can be used to adjust the transmission signal to propagate in the waveguide layer, so that the signal can be received by the receiving antenna with low loss; the third method is a combination of the first two, not only using the shore-based intelligent reflective surface to induce the transmission signal to propagate in the waveguide layer, but also using the ship-side intelligent reflective surface to change the propagation angle and propagation height of the signal propagating in the waveguide layer, so that the signal is directly propagated toward the receiving antenna, thereby achieving signal enhancement at the receiving antenna. The present invention does not make any specific restrictions on the methods of obtaining and processing various data, as well as details such as the equipment carrying the smart reflective surface. This actually means that as long as the smart reflective surface is used to improve the received signal strength of the ship, it violates the claims of the present invention. In addition, similarly, the number of reflective units in the smart reflective surface and the size and number of the smart reflective surface and other specific details are not specifically restricted in the present invention. It needs to be emphasized again that the design of these mechanisms has an important impact on the performance of the ship signal enhancement method assisted by the smart reflective surface involved in the present invention. The present invention does not claim the details of the smart reflective surface parameters, and the use of smart reflective surfaces to enhance the ship's received signal is the highlight of this application.

[0097] An embodiment of the present application also provides a ship reception signal enhancement system assisted by an intelligent reflecting surface. The ship reception signal enhancement system assisted by an intelligent reflecting surface can implement the ship reception signal enhancement method assisted by an intelligent reflecting surface described in the present application. However, the implementation device of the ship reception signal enhancement method assisted by an intelligent reflecting surface described in the present application includes but is not limited to the structure of the ship reception signal enhancement system assisted by an intelligent reflecting surface listed in the present embodiment. All structural deformations and replacements of the prior art made according to the principles of the present application are included in the protection scope of the present application.

[0098] See also Figure 5 In one embodiment, this embodiment provides a ship receiving signal enhancement system 50 assisted by an intelligent reflective surface, the system comprising:

[0099] An acquisition module 51 is used to acquire the strength of a ship receiving signal;

[0100] A judging module 52, used for judging the magnitude of the signal strength received by the ship and a preset strength threshold;

[0101] The control module 53 is used to directly receive the transmission signal based on the receiving antenna when the ship's received signal strength is higher than or equal to the strength threshold; and when the ship's received signal strength is less than the strength threshold, obtain the receiving antenna height value, and adjust the arrangement height and transmission phase of the ship-side intelligent reflection surface based on the receiving antenna height value so that the transmission signal is received by the receiving antenna; or when the ship's received signal strength is less than the strength threshold, adjust the propagation height and propagation angle of the transmission signal based on the shore-based intelligent reflection surface so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation; or when the ship's received signal strength is less than the strength threshold, adjust the propagation height and propagation angle of the transmission signal based on the shore-based intelligent reflection surface so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation, and at the same time obtain the receiving antenna height value, and adjust the arrangement height and transmission phase of the ship-side intelligent reflection surface based on the receiving antenna height value so that the transmission signal is received by the receiving antenna.

[0102] Since the specific implementation of this embodiment corresponds to the aforementioned method embodiment, the same details will not be repeated here, and those skilled in the art should also understand that Figure 5 The division of the modules in the embodiment is merely a division of logical functions, and in actual implementation, all or part of them can be integrated into one or more physical entities, and these modules can be implemented entirely in the form of software called by processing elements, or entirely in the form of hardware, or some modules can be implemented in the form of software called by processing elements, and some modules can be implemented in the form of hardware.

[0103] See also Figure 6 This embodiment provides an electronic device. Specifically, the electronic device includes at least a memory and a processor connected via a bus, wherein the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory to execute all or part of the steps in the aforementioned method embodiment.

[0104] See also Figure 7 This embodiment provides a device 70 for enhancing ship receiving signals assisted by an intelligent reflective surface, the device comprising:

[0105] Electronic device 71; and

[0106] An antenna, communicatively connected to the electronic device 71, the antenna comprising a receiving antenna 721 and a transmitting antenna 722, wherein the transmitting antenna 721 is used to send a transmission signal, and the receiving antenna 722 is used to receive the transmission signal;

[0107] The smart reflection surface includes a ship-side smart reflection surface 731 and a shore-side smart reflection surface 732. The ship-side smart reflection surface 731 is located on one side of the receiving antenna 721, and the shore-side smart reflection surface 732 is located on one side of the transmitting antenna 722. The smart reflection surface is used to change the propagation direction of the transmission signal, wherein the propagation direction includes a propagation height and a propagation angle.

[0108] The controllable height device 74 is fixedly connected to the smart reflective surface and is used to adjust the arrangement height of the smart reflective surface and / or the propagation height of the transmission signal.

[0109] In summary, the present invention utilizes the intelligent reflecting surface to change the signal propagation angle and propagation height, so that the radio electromagnetic wave signal can be propagated in the waveguide layer with less attenuation or the intelligent reflecting surface directly reflects the signal to the receiving antenna of the ship, thereby enhancing the receiving signal of the ship traveling far from the shore and ensuring the normal communication of the ship.

[0110] In the several embodiments provided in the present application, it should be understood that the disclosed system, device or method can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of modules / units is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or units can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules or units, which can be electrical, mechanical or other forms.

[0111] The modules / units described as separate components may or may not be physically separated, and the components displayed as modules / units may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules / units may be selected according to actual needs to achieve the purpose of the embodiments of the present application. For example, the functional modules / units in the various embodiments of the present application may be integrated into one processing module, or each module / unit may exist physically separately, or two or more modules / units may be integrated into one module / unit.

[0112] Those of ordinary skill in the art should further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0113] The present application embodiment also provides a computer-readable storage medium. A person of ordinary skill in the art can understand that all or part of the steps in the method for implementing the above embodiment can be completed by a program to instruct the processor, and the program can be stored in a computer-readable storage medium, and the storage medium is a non-transitory medium, such as a random access memory, a read-only memory, a flash memory, a hard disk, a solid-state hard disk, a magnetic tape, a floppy disk, an optical disc, and any combination thereof. The above storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., a solid-state hard disk (SSD)), etc.

[0114] The present application embodiment may also provide a computer program product, the computer program product including one or more computer instructions. When the computer instructions are loaded and executed on a computing device, the process or function described in the embodiment of the present application is generated in whole or in part. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer or data center.

[0115] When the computer program product is executed by a computer, the computer executes the method described in the above method embodiment. The computer program product may be a software installation package, and when the above method is required, the computer program product may be downloaded and executed on a computer.

[0116] The descriptions of the processes or structures corresponding to the above-mentioned figures have different emphases. For parts that are not described in detail in a certain process or structure, please refer to the relevant descriptions of other processes or structures.

[0117] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A method for enhancing ship receiving signals assisted by an intelligent reflective surface, characterized in that: include: Obtain the ship receiving signal strength, and compare the ship receiving signal strength with a preset strength threshold, wherein if the ship receiving signal strength is less than the strength threshold, then Adjusting the propagation height and propagation angle of the transmission signal based on the shore-based smart reflector so that the transmission signal enters the waveguide layer at the location of the transmitting antenna for propagation, specifically includes: obtaining the height value of the transmitting antenna and the height value range of the waveguide layer at the location of the transmitting antenna; judging whether the height value of the transmitting antenna is within the height value range, wherein if the height value of the transmitting antenna is not within the height value range, changing the propagation angle and propagation height of the transmission signal based on the shore-based smart reflector so that the transmission signal enters the waveguide layer at the location of the transmitting antenna for propagation; if the height value of the transmitting antenna is within the height value range, changing the propagation angle of the transmission signal based on the shore-based smart reflector so that the transmission signal enters the waveguide layer at the location of the transmitting antenna for propagation, or adjusting the propagation height and propagation angle of the transmission signal based on the shore-based smart reflector so that the transmission signal enters the waveguide layer at the location of the transmitting antenna for propagation, and obtaining the height value of the receiving antenna, and adjusting the arrangement height and transmission phase of the ship-side smart reflector based on the receiving antenna height value so that the transmission signal is received by the receiving antenna.

2. The method for enhancing ship receiving signals assisted by intelligent reflective surfaces according to claim 1, characterized in that: If the ship receiving signal strength is higher than or equal to the strength threshold, the transmission signal is directly received based on the receiving antenna.

3. The method for enhancing ship receiving signals assisted by intelligent reflective surfaces according to claim 1, characterized in that: The adjusting the arrangement height and transmission phase of the smart reflective surface on the ship side based on the height value of the receiving antenna so that the transmission signal is received by the receiving antenna specifically includes: Adjusting the arrangement height of the smart reflective surface on the ship side based on the height value of the receiving antenna; The transmission phase of the ship-side smart reflector is adjusted to change the propagation angle of the transmission signal so that the transmission signal is received by the receiving antenna.

4. The method for enhancing ship receiving signals assisted by intelligent reflective surfaces according to claim 1, characterized in that: The method also includes obtaining meteorological data at the location of the transmitting antenna to calculate a waveguide strength value, and calculating a waveguide trap angle value based on the waveguide strength value, wherein the propagation angle of the transmission signal is changed so that the absolute value of the incident angle of the transmission signal entering the waveguide layer is less than or equal to the waveguide trap angle value.

5. The method for enhancing ship receiving signals assisted by intelligent reflective surfaces according to claim 4, characterized in that: The arrangement height of the ship side intelligent reflective surface is changed based on a preset controllable height device and / or the propagation height of the transmission signal is changed, wherein the controllable height device includes at least a drone.

6. A ship receiving signal enhancement system assisted by an intelligent reflective surface, characterized in that: include: An acquisition module is used to obtain the signal strength received by the ship; A judgment module, used for judging the received signal strength and a preset strength threshold; The control module comprises: when the signal strength received by the ship is less than the strength threshold, the propagation height and propagation angle of the transmission signal are adjusted based on the shore-side intelligent reflection surface so that the transmission signal enters the waveguide layer where the transmitting antenna is located for propagation, specifically comprising: obtaining the height value of the transmitting antenna and the height value range of the waveguide layer where the transmitting antenna is located; judging whether the height value of the transmitting antenna is within the height value range, wherein if the height value of the transmitting antenna is not within the height value range, then changing the propagation angle and propagation height of the transmission signal based on the shore-side intelligent reflection surface so that the transmission signal Enter the waveguide layer where the transmitting antenna is located and propagate; if the height value of the transmitting antenna is within the height value range, then based on the smart reflection surface on the shore side, change the propagation angle of the transmission signal so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates, or based on the smart reflection surface on the shore side, adjust the propagation height and propagation angle of the transmission signal so that the transmission signal enters the waveguide layer where the transmitting antenna is located and propagates, and obtain the height value of the receiving antenna, and adjust the arrangement height and transmission phase of the smart reflection surface on the ship side based on the height value of the receiving antenna so that the transmission signal is received by the receiving antenna.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for enhancing ship receiving signals assisted by an intelligent reflecting surface as described in any one of claims 1 to 6 is implemented.

8. An electronic device, characterized in that: The electronic device comprises: a processor and a memory; wherein the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the electronic device executes the ship receiving signal enhancement method assisted by the intelligent reflecting surface as described in any one of claims 1 to 6.

9. A ship receiving signal enhancement device assisted by an intelligent reflective surface, characterized in that: The device comprises: The electronic device as claimed in claim 8; and An antenna, communicatively connected to the electronic device, the antenna comprising a receiving antenna and a transmitting antenna, wherein the transmitting antenna is used to send a transmission signal, and the receiving antenna is used to receive the transmission signal; An intelligent reflecting surface, comprising a ship-side intelligent reflecting surface and a shore-side intelligent reflecting surface, wherein the ship-side intelligent reflecting surface is located at one side of the receiving antenna, and the shore-side intelligent reflecting surface is located at one side of the transmitting antenna, and the intelligent reflecting surface is used to change the propagation direction of the transmission signal, wherein the propagation direction includes a propagation height and a propagation angle; A controllable height device is fixedly connected to the smart reflective surface and is used to adjust the arrangement height of the smart reflective surface and / or the propagation height of the transmission signal.

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