Mobile dynamic networking method for satellite flash near field communication

Abstract

The invention relates to the technical field of wireless networking, and particularly discloses a mobile dynamic networking method for star-flash near-field communication, which comprises the following steps: S1, determining the maximum physical section of a transmitting main body, constructing a transmitting main body signal point section based on the vertex of the maximum physical section, dividing transmitting units, and constructing a transmitting main body signal point section; acquiring the maximum cross sectional area of the obstacle based on the transmitting unit; s2, acquiring a center point of a signal point section of the transmitting main body, calculating an initial length, setting an annular slide rail according to the initial length, and correcting the initial length based on the frequency of transmitting a beam and the frequency of receiving the beam to obtain a corrected length; and S3, resetting the corrected annular sliding rail according to the corrected length, obtaining a corrected section based on the type of the annular sliding rail, and setting a launching point. According to the invention, through the physical diversity space redundancy channel, the negative influence caused by external environment change or uncertainty is solved, and the reliability of the diversity space redundancy link is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless networking, and in particular to a mobile dynamic networking method for star flash near-field communication. Background Art

[0002] Currently, near-field communication in open frequency bands primarily relies on wireless technology to ensure high reliability. This technology is typically implemented through data retransmission or content redundancy mechanisms, with multi-link redundancy being the primary implementation method. In high-speed motion scenarios, where personal safety is a concern, communication systems must meet extremely high reliability standards. However, redundant retransmission mechanisms based on a single wireless air interface link have significant limitations. When the beam path is blocked by obstacles, a single-link system struggles to maintain a stable communication connection and cannot consistently meet high reliability requirements.

[0003] In the existing technology, the single-channel wireless air interface link and dual-channel redundant retransmission mechanism are usually easily affected by the external environment. Once the beam path is blocked, the high reliability of the communication link cannot be guaranteed. At this time, the retransmission mechanism cannot solve the problem of the obstructed beam path, and thus will block the communication link and cause communication interruption. Summary of the Invention

[0004] The purpose of the present invention is to provide a mobile dynamic networking method for Star Flash near-field communication to solve the above technical problems.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A mobile dynamic networking method for Star Flash near-field communication comprises the following steps: S1: Instruct the transmitting entity to transmit a beam. If the receiving entity does not receive the beam, obtain the maximum physical cross-section of the transmitting entity and construct a signal point cross-section of the transmitting entity based on the maximum physical cross-section. The signal point section of the transmitting subject is divided into A transmitting unit, obtaining a maximum cross-sectional area S of the obstacle based on the transmitting unit, wherein N represents a preset unit length; S2: Obtain the center point O of the signal point section of the transmitting subject and calculate the initial length , set the annular slide rail with the center point O as the center and the initial length r as the radius; The transmitting unit is caused to perform uniform circular motion on the annular slide rail and transmit beams at a preset time interval t. The number of times the transmitting unit transmits beams during one uniform circular motion, M, and the number of times the receiving body receives beams, m, are obtained. The initial length r is corrected based on the number of times M and m of beams transmitted and received to obtain a corrected length. The above operation is repeated until M=m and the corrected length R at this time is obtained. S3: Reset the annular slide rail with the center point O as the center of the circle and the correction length R as the radius, and record it as the corrected annular slide rail. If the corrected annular slide rail is inside the cross-section of the transmitting main body signal point, it is recorded as a Class I annular slide rail, otherwise it is recorded as a Class II annular slide rail. Based on the type of the annular slide rail, the cross-section of the transmitting main body signal point is corrected to obtain a corrected cross-section, and the transmitting point is set at the vertex of the corrected cross-section and on the corrected annular slide rail.

[0006] As a further solution of the present invention: in the step S1, the method of constructing the signal point section of the transmitting subject based on the maximum physical section includes: Preset a standard plane, obtain the angle θ between the maximum physical section and the standard plane, and obtain the mapping surface of the maximum physical section on the standard plane; Get the maximum transmission angle θ within the beam transmission range of the transmitting subject max , the edge length in the mapping surface is enlarged, and the enlarged edge length , where L s It represents the corresponding side length before magnification in the mapping surface, and the mapping surface after all side lengths are magnified is used as the cross section of the transmitting main signal point.

[0007] As a further solution of the present invention: in the step S1, the method for obtaining the maximum cross-sectional area S of the obstacle based on the transmitting unit includes: The beam perpendicular to the plane where the transmitting unit is located is recorded as a vertical beam. The vertical beam is emitted at the center point of the transmitting unit. If the vertical beam is received by the receiving body, the corresponding transmitting unit is recorded as an effective unit, and the maximum cross-sectional area is calculated. , where I represents the number of transmitting units in the signal point section of the transmitting subject, I u Represents the number of valid units.

[0008] As a further solution of the present invention: in the step S2, the initial length r is corrected based on the number M of beam transmissions and the number m of beam receptions to obtain the corrected length, including: If M>m, let the corrected length R=Mr / m.

[0009] As a further solution of the present invention: in the step S2, the linear velocity v of the transmitting unit in uniform circular motion is obtained, and the time T=2πr / v for one uniform circular motion is calculated, and the time interval t≤0.25T.

[0010] As a further solution of the present invention: if the vertically transmitted beam is not received by the receiving subject, the corresponding transmitting unit is recorded as an invalid unit, and when the invalid unit is adjacent to the boundary of the signal point section of the transmitting subject, it is recorded as an error state; When in error state, a circle of transmitting units is added to the periphery of the signal point section of the transmitting subject, and new invalid units are marked.

[0011] As a further solution of the present invention: in the step S3, the method of correcting the signal point cross section of the transmitting body based on the type of the annular slide rail to obtain the corrected cross section includes: If it is a type of annular slide rail, no correction is performed and the cross section of the transmitting main signal point is recorded as the correction cross section; If it is a second-class annular slide, the preset side length gradient LD=(1+λ)LD s , where λ represents the preset gradient coefficient and λ=0.1, 0.2, 0.3, ..., LD s Represents the side length in the section of the transmitting main signal point, and reconstructs the section of the transmitting main signal point with the side length gradient LD. When the second-class annular slide rail is in the reconstructed section of the transmitting main signal point, it stops and is recorded as the corrected section.

[0012] As a further solution of the present invention: in the step S3, when there is a tangent point between the annular slide rail and the signal point section of the transmitting body, the annular slide rail is recorded as a second-class annular slide rail.

[0013] The beneficial effects of the present invention are as follows: first, whether the receiving subject receives the beam is used to determine whether there is an obstacle between the two. In order to ensure smooth communication, the signal point section of the transmitting subject needs to be constructed based on the vertex of the maximum physical section of the transmitting subject, and then the signal point section of the transmitting subject needs to be adjusted to obtain the best solution. Ordinary dual-channel redundancy usually adopts a dual physical link design, but it can only form a plane connection effect. When an obstacle appears in a certain place, all physical direct channels of the plane may be affected. Figure 3 As shown, if an obstacle happens to pass through this plane, the physical air interface link will be interrupted momentarily. The positive effect of this invention lies in shifting from two-dimensional physical redundancy to three-dimensional physical redundancy, overcoming the impact of external obstructions. Specifically, multiple redundancies are provided in both height and width directions, eliminating the negative impact of a single-plane obstruction affecting the wireless direct channel.

[0014] When the maximum physical cross-section is obtained, it needs to be corrected first and mapped to a preset standard plane. This way, all emission points are on the same plane, which is beneficial for subsequent adjustments and avoids the influence of irrelevant factors. However, there are certain problems with the obtained mapping figure, so it needs to be corrected in subsequent steps.

[0015] The signal point cross-section of the transmitting body is divided into transmitting units of equal specifications, and then the transmitting units are used to determine the maximum cross-sectional area of ​​the obstacle. This method can simplify the steps of measuring the maximum cross-sectional area of ​​the obstacle. The initial length is calculated based on the obtained maximum cross-sectional area of ​​the obstacle, and the annular slide is set with the initial length as the radius. The current annular slide is the minimum value, so it needs to be corrected in subsequent steps to ensure that the annular slide is large enough to ignore the obstruction of the obstacle. The purpose of pre-setting uniform circular motion is to avoid the result error caused by selecting certain special positions and enhance the objectivity of the experiment.

[0016] Then, the initial length is corrected according to the number of times the beam is transmitted and the number of times the beam is received to obtain the corrected length. The greater the difference between the number of times the beam is transmitted and the number of times the beam is received, the greater the correction force on the initial length.

[0017] The correction annular rail is then reset with the correction length as its radius. The cross-section of the transmitter's signal point is then corrected based on the reset correction annular rail. Because the reset radius of the correction annular rail increases, the annular rail may become larger than the original cross-section of the transmitter's signal point. Therefore, the original cross-section of the transmitter's signal point needs to be further enlarged to obtain a correction cross-section based on the specific situation, ensuring that the annular rail is within the correction cross-section. Therefore, the present invention addresses the negative impacts of external environmental changes or uncertainties through the use of physically diverse spatially redundant channels, thereby improving the reliability of diverse spatially redundant links. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a flow chart of a mobile dynamic networking method for Star Flash near-field communication according to the present invention; Figure 2 This is a schematic diagram of a physical channel device of a transmitting body of a mobile dynamic networking method for star flash near-field communication according to the present invention; Figure 3 This is a dual-channel redundancy diagram of a mobile dynamic networking method for Star Flash near-field communication according to the present invention; Figure 4 It is a working diagram of a mobile dynamic networking method for Star Flash near-field communication of the present invention. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] See also Figure 1 As shown, the present invention is a mobile dynamic networking method for Star Flash near-field communication, comprising the following steps: S1: Instruct the transmitting entity to transmit a beam. If the receiving entity does not receive the beam, obtain the maximum physical cross-section of the transmitting entity and construct a signal point cross-section of the transmitting entity based on the maximum physical cross-section. The signal point section of the transmitting subject is divided into A transmitting unit, obtaining a maximum cross-sectional area S of the obstacle based on the transmitting unit, wherein N represents a preset unit length; S2: Obtain the center point O of the signal point section of the transmitting subject and calculate the initial length , set the annular slide rail with the center point O as the center and the initial length r as the radius; The transmitting unit is caused to perform uniform circular motion on the annular slide rail and transmit beams at a preset time interval t. The number of times the transmitting unit transmits beams during one uniform circular motion, M, and the number of times the receiving body receives beams, m, are obtained. The initial length r is corrected based on the number of times M and m of beams transmitted and received to obtain a corrected length. The above operation is repeated until M=m and the corrected length R at this time is obtained. S3: Reset the annular slide rail with the center point O as the center of the circle and the correction length R as the radius, and record it as the corrected annular slide rail. If the corrected annular slide rail is inside the cross-section of the transmitting main body signal point, it is recorded as a Class I annular slide rail, otherwise it is recorded as a Class II annular slide rail. Based on the type of the annular slide rail, the cross-section of the transmitting main body signal point is corrected to obtain a corrected cross-section, and the transmitting point is set at the vertex of the corrected cross-section and on the corrected annular slide rail.

[0022] It should be noted that the transmitting entity will first detect whether the receiving entity has successfully captured the beam and determine whether there are physical obstacles on the communication path. In order to ensure smooth communication, it is necessary to construct the transmitting entity's signal point cross-section based on the transmitting entity's maximum physical cross-section characteristics. The maximum physical cross-section is mapped on a preset standard plane to obtain the transmitting entity's signal point cross-section, and finally a three-dimensional beamforming scheme is obtained. Compared with the traditional dual-channel redundant scheme, it achieves a breakthrough in the spatial dimension, extending the redundant design from a two-dimensional plane to a three-dimensional space, and constructing multiple redundant links in the three dimensions of height, width and depth, thereby ensuring the stability of communication.

[0023] exist Figure 2 In the embodiment, the circling direction of the transmitting unit in the transmitting entity physical channel device has no effect on the final result of the present invention and is therefore not specified. However, it is necessary to ensure that the circular track and the signal point section of the transmitting entity are in the same plane. Figure 3The figure is a schematic diagram of dual-channel redundancy, which is a traditional dual-channel redundancy method. The traditional solution only relies on the dual physical link design in a single plane. When an obstacle appears in the plane, all physical direct channels may fail at the same time, resulting in communication interruption. In the present invention, through real-time spatial perception, when an obstacle is detected in a certain plane, it can immediately switch to the backup link in other spatial dimensions, thereby ensuring the continuity of communication and improving the anti-interference ability of the present invention. The traditional dual-channel redundancy solution may completely fail when encountering complex environments such as building structures, natural obstacles or human interference, while the three-dimensional redundancy design of the present invention can still maintain at least one effective communication path through spatial diversity. Therefore, the stability of communication is further improved by increasing the redundancy level of the spatial dimension.

[0024] Then, the signal point cross-section of the transmitting entity is obtained by obtaining the maximum physical cross-section of the transmitting entity. However, the obtained maximum physical cross-section cannot be directly used for subsequent analysis and calculation, because in the actual physical scene, various factors may cause the obtained maximum physical cross-section to have deviations or be in different spatial positions, which is not conducive to subsequent unified processing and analysis. Therefore, the maximum physical cross-section is mapped on the standard plane, which provides a unified reference benchmark for subsequent operations, thereby ensuring that all transmitting points are on the same plane, and can more conveniently optimize and calibrate the position, angle and other parameters of each transmitting point, and can also reduce the influence of irrelevant variables.

[0025] After the launch units are divided, they can be used to accurately determine the maximum cross-sectional area of ​​an obstacle. This method's advantage lies in simplifying the complex problem of measuring the cross-sectional area of ​​an obstacle into the analysis and processing of individual launch units. By monitoring and analyzing the interaction between each launch unit and the obstacle, the maximum cross-sectional area of ​​the obstacle can be comprehensively determined. Based on this maximum cross-sectional area, the initial length can be calculated and the circular rail can be set accordingly. It should be noted that the current circular rail setting is only a minimum value. This is because the initial calculation and setting uses the maximum cross-sectional area of ​​the obstacle to determine a relatively conservative rail radius to ensure that the rail can accommodate the obstacle to a certain extent. However, in actual application, simply setting a minimum circular rail may not meet experimental requirements. Due to the variability of factors such as the shape and position of the obstacle, if the circular rail is too small, it may cause excessive interference between the rail and the obstacle, affecting the normal progress of the experiment. Therefore, in subsequent steps, the circular rail needs to be adjusted. The purpose of this adjustment is to ensure that the circular rail is large enough to ignore the obstruction. Specifically, the radius of the circular slide was adjusted appropriately based on the actual experimental conditions and measurement data to minimize the impact of obstacles on the experiment while ensuring experimental accuracy. Furthermore, the launch unit on the circular slide was made to perform uniform circular motion to reduce errors in the results caused by certain special positions. Uniform circular motion also exhibits a certain regularity and repeatability, which facilitates accurate analysis and processing of experimental data and enhances the objectivity of the experiment.

[0026] In the process of calculating the corrected length, the initial length is adjusted according to the number of transmitted beams and the number of received beams. The larger the difference between the number of transmitted beams and the number of received beams, the more significant the obstruction encountered by the signal during propagation. Therefore, the correction strength of the initial length also needs to be increased accordingly. This correction mechanism can effectively compensate for signal attenuation or distortion caused by environmental complexity or the presence of obstacles, ensuring the accuracy of subsequent measurements. Figure 4As shown in the schematic diagram of the multi-redundant link operation, a correction circular rail is reset based on the corrected length, using this corrected length as its radius. The goal is to adjust the rail radius to better adapt to changes in the experimental environment. In particular, when obstacles change in size or position, the corrected circular rail provides a larger operating space, thereby reducing experimental errors caused by interference between the rail and the obstacle. However, since the corrected length is typically greater than the initial length, the reset circular rail radius also increases, potentially causing the circular rail to extend beyond the original signal point cross-section. Therefore, the original signal point cross-section needs to be further enlarged to obtain a corrected cross-section, depending on the specific situation. The introduction of a corrected cross-section ensures that the circular rail remains within a reasonable range, meaning it is completely contained within the corrected cross-section. This prevents signal loss or measurement errors caused by the rail extending beyond the signal point cross-section, ensuring that the enlargement ratio meets the rail requirements without excessively affecting signal quality and experimental accuracy.

[0027] In another preferred embodiment of the present invention, the method for constructing the signal point cross section of the transmitting subject based on the maximum physical cross section includes: Preset a standard plane, obtain the angle θ between the maximum physical section and the standard plane, and obtain the mapping surface of the maximum physical section on the standard plane; Get the maximum transmission angle θ within the beam transmission range of the transmitting subject max , the edge length in the mapping surface is enlarged, and the enlarged edge length , where L s It represents the corresponding side length before magnification in the mapping surface, and the mapping surface after all side lengths are magnified is used as the cross section of the transmitting main signal point.

[0028] It is worth noting that in actual physical scenarios, various factors may cause the obtained maximum physical cross-section to deviate or be in different spatial positions, which is not conducive to subsequent unified processing and analysis. Therefore, the maximum physical cross-section is mapped on a standard plane, which provides a unified reference benchmark for subsequent operations, thereby ensuring that all emission points are on the same plane. It can more conveniently optimize and calibrate the position, angle and other parameters of each emission point, and can also reduce the influence of irrelevant variables.

[0029] In another preferred embodiment of the present invention, the method for obtaining the maximum cross-sectional area S of an obstacle based on the transmitting unit includes: The beam perpendicular to the plane where the transmitting unit is located is recorded as a vertical beam. The vertical beam is emitted at the center point of the transmitting unit. If the vertical beam is received by the receiving body, the corresponding transmitting unit is recorded as an effective unit, and the maximum cross-sectional area is calculated. , where I represents the number of transmitting units in the signal point section of the transmitting subject, Iu Represents the number of valid units.

[0030] Its advantage is that it can simplify the complex problem of measuring the cross-sectional area of ​​an obstacle into the analysis and processing of each transmitting unit. By monitoring and analyzing the interaction between each transmitting unit and the obstacle, the maximum cross-sectional area of ​​the obstacle can be comprehensively calculated.

[0031] In another preferred embodiment of the present invention, the modified length obtained by modifying the initial length r based on the number M of beam transmissions and the number m of beam receptions includes: If M>m, let the corrected length R=Mr / m.

[0032] It should be noted that the initial length is adjusted according to the number of transmitted beams and the number of received beams. The larger the difference between the number of transmitted beams and the number of received beams, the more significant the obstruction encountered by the signal during propagation. Therefore, the correction strength of the initial length also needs to be increased accordingly. This correction mechanism can effectively compensate for signal attenuation or distortion caused by environmental complexity or the presence of obstacles, ensuring the accuracy of subsequent measurements.

[0033] In another preferred embodiment of the present invention, the linear velocity v of the transmitting unit performing uniform circular motion is obtained, and the time T=2πr / v for one uniform circular motion is calculated, and the time interval t≤0.25T.

[0034] It should be noted that the purpose of doing this is to reduce the result errors caused by certain special positions. At the same time, uniform circular motion has a certain regularity and repeatability, which helps to accurately analyze and process the experimental data and ensure that at least 4 data are collected in a uniform circular motion, so as to demonstrate the objectivity of the experiment.

[0035] In a preferred embodiment of this invention, if the vertically transmitted beam is not received by the receiving subject, the corresponding transmitting unit is recorded as an invalid unit. When the invalid unit is adjacent to the boundary of the signal point section of the transmitting subject, it is recorded as an error state. When in error state, a circle of transmitting units is added to the periphery of the signal point section of the transmitting subject, and new invalid units are marked.

[0036] It is understandable that in order to avoid the situation where the maximum cross-sectional area measurement fails due to the obstacle being too large, the measured maximum cross-sectional area can be made more accurate.

[0037] In another preferred embodiment of the present invention, a method for correcting the signal point cross section of the transmitting body based on the type of the annular slide rail to obtain a corrected cross section includes: If it is a type of annular slide rail, no correction is performed and the cross section of the transmitting main signal point is recorded as the correction cross section; If it is a second-class annular slide, the preset side length gradient LD=(1+λ)LD s , where λ represents the preset gradient coefficient and λ=0.1, 0.2, 0.3, ..., LD s Represents the side length in the section of the transmitting main signal point, and reconstructs the section of the transmitting main signal point with the side length gradient LD. When the second-class annular slide rail is in the reconstructed section of the transmitting main signal point, it stops and is recorded as the corrected section.

[0038] It is worth noting that since the correction length is usually greater than the initial length, the radius of the reset circular slide will also increase accordingly, which may cause the circular slide range to exceed the original transmitting body signal point cross-section. Therefore, it is necessary to further amplify the original transmitting body signal point cross-section according to the specific situation to obtain the correction cross-section. The introduction of the correction cross-section is to ensure that the circular slide is always within a reasonable range, that is, it is completely contained within the correction cross-section. This avoids signal loss or measurement errors caused by the slide exceeding the signal point cross-section, and ensures that the amplification ratio not only meets the slide requirements, but also does not excessively affect the signal quality and experimental accuracy.

[0039] In another preferred embodiment of the present invention, when there is a tangent point between the annular slide rail and the signal point section of the transmitting body, the annular slide rail is recorded as a second-class annular slide rail.

[0040] It is noteworthy that the extreme case where the cross section of the annular slide rail and the signal point of the transmitting body are tangent is specially described, which improves the resistance of the present invention to extreme cases.

[0041] The above is a detailed description of an embodiment of the present invention. However, the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A mobile dynamic networking method for Star Flash near-field communication, characterized in that: The following steps are involved: S1: Instruct the transmitting entity to transmit a beam. If the receiving entity does not receive the beam, obtain the maximum physical cross-section of the transmitting entity and construct a signal point cross-section of the transmitting entity based on the maximum physical cross-section. The signal point section of the transmitting subject is divided into A transmitting unit, obtaining a maximum cross-sectional area S of the obstacle based on the transmitting unit, wherein N represents a preset unit length; S2: Obtain the center point O of the signal point section of the transmitting subject and calculate the initial length , set the annular slide rail with the center point O as the center and the initial length r as the radius; The transmitting unit is caused to perform uniform circular motion on the annular slide rail and transmit beams at a preset time interval t. The number of times the transmitting unit transmits beams during one uniform circular motion, M, and the number of times the receiving body receives beams, m, are obtained. The initial length r is corrected based on the number of times M and m of beams transmitted and received to obtain a corrected length. The above operation is repeated until M=m and the corrected length R at this time is obtained. S3: Reset the annular slide rail with the center point O as the center of the circle and the correction length R as the radius, and record it as the corrected annular slide rail. If the corrected annular slide rail is inside the cross-section of the transmitting main body signal point, it is recorded as a Class I annular slide rail, otherwise it is recorded as a Class II annular slide rail. Based on the type of the annular slide rail, the cross-section of the transmitting main body signal point is corrected to obtain a corrected cross-section, and the transmitting point is set at the vertex of the corrected cross-section and on the corrected annular slide rail.

2. A mobile dynamic networking method for Star Flash near field communication according to claim 1, characterized in that: In step S1, the method for constructing the signal point section of the transmitting subject based on the maximum physical section includes: Preset a standard plane, obtain the angle θ between the maximum physical section and the standard plane, and obtain the mapping surface of the maximum physical section on the standard plane; Get the maximum transmission angle θ within the beam transmission range of the transmitting subject max , the edge length in the mapping surface is enlarged, and the enlarged edge length , where L s It represents the corresponding side length before magnification in the mapping surface, and the mapping surface after all side lengths are magnified is used as the cross section of the transmitting main signal point.

3. The mobile dynamic networking method of Star Flash near field communication according to claim 1, characterized in that: In step S1, the method for obtaining the maximum cross-sectional area S of the obstacle based on the transmitting unit includes: The beam perpendicular to the plane where the transmitting unit is located is recorded as a vertical beam. The vertical beam is emitted at the center point of the transmitting unit. If the vertical beam is received by the receiving body, the corresponding transmitting unit is recorded as an effective unit, and the maximum cross-sectional area is calculated. , where I represents the number of transmitting units in the signal point section of the transmitting subject, I u Represents the number of valid units.

4. The mobile dynamic networking method for Star Flash near field communication according to claim 1, characterized in that: In the step S2, the initial length r is corrected based on the number M of beam transmissions and the number m of beam receptions to obtain the corrected length, which includes: If M>m, let the corrected length R=Mr / m.

5. The mobile dynamic networking method of Star Flash near field communication according to claim 1, characterized in that: In the step S2, the linear velocity v of the transmitting unit in uniform circular motion is obtained, and the time T=2πr / v for one uniform circular motion is calculated, and the time interval t≤0.25T.

6. The mobile dynamic networking method of Star Flash near field communication according to claim 3, characterized in that: If the vertically transmitted beam is not received by the receiving subject, the corresponding transmitting unit is recorded as an invalid unit. When the invalid unit is adjacent to the boundary of the signal point section of the transmitting subject, it is recorded as an error state; When in an error state, a circle of transmitting units is added to the periphery of the signal point section of the transmitting subject, and new invalid units are marked.

7. The mobile dynamic networking method of Star Flash near field communication according to claim 1, characterized in that: In the step S3, the method of correcting the signal point cross section of the transmitting body based on the type of the annular slide rail to obtain the corrected cross section includes: If it is a type of annular slide rail, no correction is performed and the cross section of the transmitting main signal point is recorded as the correction cross section; If it is a second-class annular slide, the preset side length gradient LD=(1+λ)LD s , where λ represents the preset gradient coefficient and λ=0.1, 0.2, 0.3, ..., LD s Represents the side length in the section of the transmitting main signal point, and reconstructs the section of the transmitting main signal point with the side length gradient LD. When the second-class annular slide rail is in the reconstructed section of the transmitting main signal point, it stops and is recorded as the corrected section.

8. The mobile dynamic networking method of Star Flash near field communication according to claim 1, characterized in that: In the step S3, when there is a tangent point between the annular slide rail and the signal point section of the transmitting body, the annular slide rail is recorded as a second-class annular slide rail.

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