A mobile dynamic networking method for star-flash near-field communication

Abstract

This invention relates to the field of wireless networking technology, specifically disclosing a mobile dynamic networking method for star-flash near-field communication, comprising the following steps: S1: Determine the maximum physical cross-section of the transmitting entity, construct the transmitting entity signal point cross-section based on the vertex of the maximum physical cross-section, divide the transmitting entity into transmitting units, and obtain the maximum cross-sectional area of ​​obstacles based on the transmitting units; S2: Obtain the center point of the transmitting entity signal point cross-section, calculate the initial length, and set a circular guide rail accordingly, correcting the initial length based on the number of transmitted beams and the number of received beams to obtain a corrected length; S3: Reset the corrected circular guide rail with the corrected length, obtain the corrected cross-section based on the type of the circular guide rail, and set the transmitting point. This invention solves the negative impact caused by changes or uncertainties in the external environment through physical diversity spatial redundancy channels, improving the reliability of diverse spatial redundancy links.

Description

Technical Field

[0001] This invention relates to the field of wireless networking technology, and specifically to a mobile dynamic networking method using Star Flash near-field communication. Background Technology

[0002] Currently, near-field communication in open frequency bands primarily employs wireless technology to ensure high reliability. This technology typically achieves this through data retransmission or content redundancy mechanisms, with multi-link redundancy being the main implementation method. In high-speed motion scenarios, due to concerns about personal safety, communication systems need to meet extremely high reliability standards. However, redundancy retransmission mechanisms based on single-channel wireless air interface links have significant limitations. When the beam path is blocked by obstacles, a single-link system struggles to maintain a stable communication connection and cannot continuously meet high reliability requirements.

[0003] In existing technologies, single-channel wireless air interface links and dual-channel redundant retransmission mechanisms are often susceptible to external environmental influences. Once the beam path is obstructed, the high reliability of the communication link cannot be guaranteed. At this time, the retransmission mechanism cannot solve the problem of beam path obstruction, thus blocking the communication link and causing communication interruption. Summary of the Invention

[0004] The purpose of this invention is to provide a mobile dynamic networking method for star-flash near-field communication, thereby solving the above-mentioned technical problems.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A mobile dynamic networking method for star-flash near-field communication includes the following steps:

[0007] S1: The transmitting entity transmits a beam. If the receiving entity does not receive the beam, the maximum physical cross-section of the transmitting entity is obtained, and the signal point cross-section of the transmitting entity is constructed based on the maximum physical cross-section.

[0008] The cross-section of the transmitting main body signal point is divided into dimensions as follows: The launching unit obtains the maximum cross-sectional area S of the obstacle based on the launching unit, where N represents the preset unit length;

[0009] S2: Obtain the center point O of the cross-section of the transmitting main body signal point, and calculate the initial length. A circular slide rail is set with center point O as the center and initial length r as the radius;

[0010] The transmitting unit is made to perform uniform circular motion on the annular slide rail and transmits beams at preset time intervals t. The number of times the transmitting unit transmits beams M and the number of times the receiving body receives beams m during one uniform circular motion are obtained. The initial length r is corrected based on the number of times the beams are transmitted M and the number of times the beams are received m to obtain the corrected length. The above operation is repeated until M=m and the corrected length R at this time is obtained.

[0011] S3: With center point O as the center and correction length R as the radius, reset the annular slide rail, which is called the correction annular slide rail. If the correction annular slide rail is inside the cross section of the transmitting main body signal point, it is called a type I annular slide rail; otherwise, it is called a type II annular slide rail. Based on the type of annular slide rail, the cross section of the transmitting main body signal point is corrected to obtain the correction cross section, and the transmission point is set at the vertex of the correction cross section and on the correction annular slide rail.

[0012] As a further aspect of the present invention: in step S1, the method for constructing the transmission main signal point cross section based on the maximum physical cross section includes:

[0013] Pre-set a standard plane, obtain the angle θ between the maximum physical cross section and the standard plane, and obtain the mapping surface of the maximum physical cross section on the standard plane;

[0014] Obtain the maximum transmission angle θ within the beam transmission range of the transmitting entity. max Enlarge the side length in the mapping plane, and the enlarged side length , where L s The length of the side before magnification in the mapping surface is represented by the length of the side before magnification. The mapping surface after magnification of all side lengths is taken as the cross section of the main signal point of the transmitting body.

[0015] As a further aspect of the present invention: in step S1, the method for obtaining the maximum cross-sectional area S of the obstacle based on the transmitting unit includes:

[0016] A beam perpendicular to the plane of the transmitting unit is designated as a vertical beam. The vertical beam is transmitted from the center point of the transmitting unit. If the vertical beam is received by the receiving entity, the corresponding transmitting unit is designated as an effective unit, and the maximum cross-sectional area is calculated. Where I represents the number of transmitting units in the cross-section of the transmitting main body signal point, I u Represents the number of valid units.

[0017] As a further aspect of the present invention: in step S2, the corrected length is obtained by correcting the initial length r based on the number of transmitted beams M and the number of received beams m, including:

[0018] If M > m, let the correction length R = Mr / m.

[0019] As a further aspect of the present invention: in step S2, the linear velocity v of the transmitting unit in uniform circular motion is obtained, the time T = 2πr / v for one uniform circular motion is calculated, and the time interval t ≤ 0.25T is set.

[0020] As a further aspect of the present invention: if the vertically transmitted beam is not received by the receiving body, 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 body, it is recorded as an error state.

[0021] When in an error state, add a ring of transmitting units around the signal point section of the transmitting main body and mark the new invalid units.

[0022] As a further aspect of the present invention: in step S3, the method for modifying the cross-section of the transmitting body signal point based on the type of the annular slide rail to obtain the modified cross-section includes:

[0023] If it is a type of circular slide rail, no correction is made, and the cross section of the main signal point is recorded as the correction section.

[0024] For a type II circular guide rail, the preset side length gradient is LD = (1 + λ)LD. s Where λ represents the preset gradient coefficient and λ = 0.1, 0.2, 0.3, ..., LD s The side length of the signal point section of the main transmitter is represented by the side length gradient LD. The signal point section of the main transmitter is reconstructed. The process stops when the second type of annular slide rail is within the reconstructed signal point section of the main transmitter and is recorded as the corrected section.

[0025] As a further aspect of the present invention: in step S3, when there is a tangent point between the annular slide rail and the cross section of the signal point of the transmitting body, the annular slide rail is denoted as a type II annular slide rail.

[0026] The beneficial effects of this invention are as follows: First, the presence of an obstacle between the receiving and transmitting entities is determined by whether the receiving entity receives the beam. To ensure smooth communication, the signal point cross-section of the transmitting entity needs to be constructed based on the vertex of the maximum physical cross-section of the transmitting entity. Then, the signal point cross-section of the transmitting entity is adjusted to obtain the optimal solution. Ordinary dual-channel redundancy typically employs a dual physical link design, but this only achieves a planar connection effect. When an obstacle appears at a certain location, all physical direct channels in that plane may be affected. For example... Figure 3As shown, when an obstacle happens to pass through this plane, the physical air interface link will be momentarily interrupted. The positive effect of this invention is that it changes the physical redundancy from planar to three-dimensional spatial redundancy, overcoming the impact of external environmental obstacles. That is, multiple redundancies are set in both the height and width directions, breaking the negative effect of a single plane obstructing the wireless direct access channel.

[0027] When the maximum physical cross section is obtained, it needs to be corrected first by mapping the maximum physical cross section onto a preset standard plane. This ensures that all launch points are on the same plane, which is beneficial for subsequent adjustments and avoids the influence of irrelevant factors. However, the obtained mapping graphic has some problems, so it needs to be corrected in subsequent steps.

[0028] The cross-section of the main signal point is divided into equal-sized transmission units. The transmission units are then used to determine the maximum cross-sectional area of ​​the obstacle. This method simplifies 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 a circular slide rail is set with the initial length as the radius. The current circular slide rail is at its minimum value, so it needs to be corrected in subsequent steps to ensure that the circular slide rail is large enough to ignore the obstruction of the obstacle. The purpose of setting a uniform circular motion is to avoid the result error caused by selecting certain special positions and to enhance the objectivity of the experiment.

[0029] Then, the initial length is corrected based on the number of transmitted beams and the number of received beams to obtain the corrected length. The greater the difference between the number of transmitted beams and the number of received beams, the greater the correction to the initial length.

[0030] The corrected annular slide rail is then reset with the corrected length as the radius. The cross-section of the transmitting main body signal point is corrected based on this reset annular slide rail. Because the radius of the reset annular slide rail increases, it may result in the slide rail being larger than the original transmitting main body signal point cross-section. Therefore, the original transmitting main body signal point cross-section needs to be further enlarged to obtain the corrected cross-section, ensuring that the annular slide rail is within the corrected cross-section. Thus, this invention, through a physically diverse spatial redundancy channel, addresses the negative impacts caused by changes or uncertainties in the external environment, improving the reliability of the diverse spatial redundancy link. Attached Figure Description

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] Figure 1 This is a flowchart illustrating a mobile dynamic networking method for star-flash near-field communication according to the present invention.

[0033] Figure 2This is a schematic diagram of the physical channel device of the transmitting body in the mobile dynamic networking method of star flash near-field communication according to the present invention;

[0034] Figure 3 This is a schematic diagram of dual-channel redundancy in a mobile dynamic networking method for star-flash near-field communication according to the present invention.

[0035] Figure 4 This is a schematic diagram illustrating the operation of a mobile dynamic networking method for star-flash near-field communication according to the present invention. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 As shown, this invention provides a mobile dynamic networking method for star-flash near-field communication, comprising the following steps:

[0038] S1: The transmitting entity transmits a beam. If the receiving entity does not receive the beam, the maximum physical cross-section of the transmitting entity is obtained, and the signal point cross-section of the transmitting entity is constructed based on the maximum physical cross-section.

[0039] The cross-section of the transmitting main body signal point is divided into dimensions as follows: The launching unit obtains the maximum cross-sectional area S of the obstacle based on the launching unit, where N represents the preset unit length;

[0040] S2: Obtain the center point O of the cross-section of the transmitting main body signal point, and calculate the initial length. A circular slide rail is set with center point O as the center and initial length r as the radius;

[0041] The transmitting unit is made to perform uniform circular motion on the annular slide rail and transmits beams at preset time intervals t. The number of times the transmitting unit transmits beams M and the number of times the receiving body receives beams m during one uniform circular motion are obtained. The initial length r is corrected based on the number of times the beams are transmitted M and the number of times the beams are received m to obtain the corrected length. The above operation is repeated until M=m and the corrected length R at this time is obtained.

[0042] S3: With center point O as the center and correction length R as the radius, reset the annular slide rail, which is called the correction annular slide rail. If the correction annular slide rail is inside the cross section of the transmitting main body signal point, it is called a type I annular slide rail; otherwise, it is called a type II annular slide rail. Based on the type of annular slide rail, the cross section of the transmitting main body signal point is corrected to obtain the correction cross section, and the transmission point is set at the vertex of the correction cross section and on the correction annular slide rail.

[0043] It should be noted that, firstly, the transmitting entity detects whether the receiving entity has successfully captured the beam and determines whether there are physical obstacles in the communication path. In order to ensure smooth communication, it is necessary to construct the transmitting entity signal point cross-section based on the maximum physical cross-sectional characteristics of the transmitting entity. The maximum physical cross-section is mapped onto a preset standard plane to obtain the transmitting entity signal point cross-section, thus obtaining a three-dimensional beamforming scheme. Compared with the traditional dual-channel redundancy scheme, it achieves a breakthrough in spatial dimension, extending the redundancy design from a two-dimensional plane to a three-dimensional space, constructing multiple redundant links in the three dimensions of height, width, and depth, thereby ensuring the stability of communication.

[0044] exist Figure 2 The orientation of the launch unit in the physical channel device of the launch body has no effect on the final result of the present invention, so it is not specified. However, it is necessary to ensure that the circular track and the cross-section of the signal point of the launch body are on the same plane. Figure 3 This diagram illustrates dual-channel redundancy, a traditional method that relies solely on dual physical links within a single plane. When an obstacle appears in that plane, all physical direct links may fail simultaneously, leading to communication interruption. In this invention, real-time spatial awareness allows for immediate switching to backup links in other spatial dimensions when an obstacle is detected in a plane, ensuring communication continuity and improving the invention's anti-interference capability. Traditional dual-channel redundancy schemes may fail completely in complex environments such as building structures, natural obstacles, or human interference. However, the three-dimensional redundancy design of this invention maintains at least one effective communication path through spatial diversity. Therefore, increasing the redundancy levels in the spatial dimensions further enhances communication stability.

[0045] Next, the signal point cross section of the transmitting body is obtained by acquiring the maximum physical cross section of the transmitting body. However, the obtained maximum physical cross section cannot be directly used for subsequent analysis and calculation because in the actual physical scenario, 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 onto a standard plane, which provides a unified reference benchmark for subsequent operations, thereby ensuring that all transmitting points are on the same plane. This makes it easier to optimize and calibrate the position, angle and other parameters of each transmitting point, and also reduces the influence of irrelevant variables.

[0046] After dividing the launching units, these units can be used to accurately determine the maximum cross-sectional area of ​​obstacles. Its advantage lies in simplifying the complex problem of measuring the cross-sectional area of ​​obstacles into the analysis and processing of individual launching units. By monitoring and analyzing the interaction between each launching unit and the obstacle, the maximum cross-sectional area of ​​the obstacle can be comprehensively determined. Based on the obtained maximum cross-sectional area, the initial length can be calculated, and a circular guide rail can be set according to the initial length. It should be noted that the circular guide rail currently set is only the minimum value. This is because during the initial calculation and setting, a relatively conservative guide rail radius is determined based on the maximum cross-sectional area of ​​the obstacle to ensure that the guide rail can adapt to the presence of the obstacle to a certain extent. However, in practical applications, setting only the minimum value of the circular guide rail may not meet the experimental requirements. Due to the possible changes in the shape and position of the obstacle, if the circular guide rail is too small, it may lead to excessive interference between the guide rail and the obstacle, affecting the normal progress of the experiment. Therefore, in subsequent steps, the circular guide rail needs to be modified. The purpose of the modification is to ensure that the circular guide rail is large enough to negate the obstruction of the obstacle. Specifically, based on the actual experimental conditions and measurement data, the radius of the circular slide rail was appropriately adjusted to minimize the impact of obstacles on the experiment while ensuring its accuracy. Furthermore, the launching unit on the circular slide rail was made to perform uniform circular motion. This aimed to reduce errors caused by certain specific positions. At the same time, uniform circular motion has a certain regularity and repeatability, which helps in the accurate analysis and processing of experimental data and enhances the objectivity of the experiment.

[0047] In calculating the correction length, the initial length is adjusted based on the number of transmitted and received beams. The greater the difference between the number of transmitted and received beams, the more significant the obstruction encountered during signal propagation. Therefore, the correction force for the initial length needs to be increased accordingly. This correction mechanism effectively compensates 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, the modified circular slide rail is reset with the modified length as its radius. The purpose is to adjust the slide rail radius to better adapt to changes in the experimental environment, especially when the size or position of obstacles changes. The modified circular slide rail provides more operating space, thereby reducing experimental errors caused by interference between the slide rail and obstacles. However, since the modified length is usually larger than the initial length, the radius of the reset circular slide rail also increases accordingly, which may cause the circular slide rail to extend beyond the original transmitter's signal point cross-section. Therefore, it is necessary to further enlarge the original transmitter's signal point cross-section according to the specific situation to obtain the modified cross-section. The introduction of the modified cross-section is to ensure that the circular slide rail is always within a reasonable range, i.e., completely contained within the modified cross-section. This avoids signal loss or measurement errors caused by the slide rail exceeding the signal point cross-section, ensuring that the amplification ratio meets the requirements of the slide rail without excessively affecting signal quality and experimental accuracy.

[0048] In another preferred embodiment of the present invention, the method for constructing the transmission main signal point cross section based on the maximum physical cross section includes:

[0049] Pre-set a standard plane, obtain the angle θ between the maximum physical cross section and the standard plane, and obtain the mapping surface of the maximum physical cross section on the standard plane;

[0050] Obtain the maximum transmission angle θ within the beam transmission range of the transmitting entity. max Enlarge the side length in the mapping plane, and the enlarged side length , where L s The length of the side before magnification in the mapping surface is represented by the length of the side before magnification. The mapping surface after magnification of all side lengths is taken as the cross section of the main signal point of the transmitting body.

[0051] It is worth noting that in actual physical scenarios, various factors may cause deviations in the obtained maximum physical cross section or place it in different spatial locations, which is not conducive to subsequent unified processing and analysis. Therefore, mapping the maximum physical cross section onto a standard plane provides a unified reference benchmark for subsequent operations, thereby ensuring that all launch points are on the same plane. This makes it easier to optimize and calibrate the position, angle and other parameters of each launch point, and also reduces the influence of irrelevant variables.

[0052] In another preferred embodiment of the present invention, the method for obtaining the maximum cross-sectional area S of an obstacle based on the aforementioned transmitting unit includes:

[0053] A beam perpendicular to the plane of the transmitting unit is designated as a vertical beam. The vertical beam is transmitted from the center point of the transmitting unit. If the vertical beam is received by the receiving entity, the corresponding transmitting unit is designated as an effective unit, and the maximum cross-sectional area is calculated. Where I represents the number of transmitting units in the cross-section of the transmitting main body signal point, I u Represents the number of valid units.

[0054] Understandably, its advantage lies in its ability to simplify the complex problem of measuring the cross-sectional area of ​​obstacles into the analysis and processing of individual launching units. By monitoring and analyzing the interaction between each launching unit and the obstacle, the maximum cross-sectional area of ​​the obstacle can be derived comprehensively.

[0055] In another preferred embodiment of the present invention, the corrected length is obtained by correcting the initial length r based on the number of transmitted beams M and the number of received beams m, including:

[0056] If M > m, let the correction length R = Mr / m.

[0057] It is important to note that the initial length is adjusted based on the number of transmitted and received beams. The greater the difference between the number of transmitted and received beams, the more significant the obstruction encountered by the signal during propagation. Therefore, the correction force for the initial length 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.

[0058] In another preferred embodiment of the present invention, 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, with the time interval t ≤ 0.25T.

[0059] It should be noted that the purpose of doing this is to reduce the error in the results caused by certain special positions. At the same time, uniform circular motion has certain regularity and repeatability, which helps to accurately analyze and process the experimental data. It is necessary to ensure that at least 4 data points need to be collected in one uniform circular motion to demonstrate the objectivity of the experiment.

[0060] In a preferred embodiment, if the vertically transmitted beam is not received by the receiving body, 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 body, it is recorded as an error state.

[0061] When in an error state, add a ring of transmitting units around the signal point section of the transmitting main body and mark the new invalid units.

[0062] Understandably, this is to avoid situations where the maximum cross-sectional area measurement fails due to excessively large obstacles, thus making the measured maximum cross-sectional area more accurate.

[0063] In another preferred embodiment of the present invention, the method for obtaining a modified cross-section by modifying the cross-section of the transmitting main signal point based on the type of the annular slide rail includes:

[0064] If it is a type of circular slide rail, no correction is made, and the cross section of the main signal point is recorded as the correction section.

[0065] For a type II circular guide rail, the preset side length gradient is LD = (1 + λ)LD. s Where λ represents the preset gradient coefficient and λ = 0.1, 0.2, 0.3, ..., LD s The side length of the signal point section of the main transmitter is represented by the side length gradient LD. The signal point section of the main transmitter is reconstructed. The process stops when the second type of annular slide rail is within the reconstructed signal point section of the main transmitter and is recorded as the corrected section.

[0066] It is worth noting that since the correction length is usually larger than the initial length, the radius of the re-set annular slide rail will also increase accordingly. This may cause the annular slide rail to extend beyond the original transmitter's signal point cross-section. Therefore, it is necessary to further enlarge the original transmitter's 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 annular slide rail is always within a reasonable range, that is, completely contained within the correction cross-section. This avoids signal loss or measurement errors caused by the slide rail extending beyond the signal point cross-section, ensuring that the amplification ratio meets the requirements of the slide rail without excessively affecting the signal quality and experimental accuracy.

[0067] In another preferred embodiment of the present invention, when there is a tangent point between the annular slide rail and the cross section of the signal point of the transmitting body, the annular slide rail is denoted as a type II annular slide rail.

[0068] It is worth noting that a special explanation is given for the extreme case where the cross-section of the annular slide rail and the signal point of the transmitting body are tangent, which improves the invention's resistance to extreme cases.

[0069] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications 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 starburst near field communication, characterized in that, The method comprises the following steps: S1: the transmitting subject emits a beam, if the receiving subject does not receive the beam, the maximum physical cross section of the transmitting subject is obtained, and a signal point cross section of the transmitting subject is constructed based on the maximum physical cross section; The transmitting main body signal point section is divided into transmitting units with specifications of The maximum cross-sectional area S of the obstacle is obtained based on the transmitting units, wherein N represents a preset unit length. S2: Obtain the center point O of the transmitting body signal point section, 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 performs uniform circular motion on the ring-shaped slide rail, emits a beam at a preset time interval t, the number of times M of emitting the beam in one uniform circular motion of the transmitting unit and the number of times m of receiving the beam by the receiving subject are obtained, the initial length r is corrected based on the number of times M of emitting the beam and the number of times m of receiving the beam to obtain a corrected length, and the above operation is repeated until M=m and the corrected length R at this time is obtained; S3: the ring-shaped slide rail is re-set with the center point O as the center and the corrected length R as the radius, and is recorded as a corrected ring-shaped slide rail, if the corrected ring-shaped slide rail is inside the signal point cross section of the transmitting subject, it is recorded as a first type of ring-shaped slide rail, otherwise, it is recorded as a second type of ring-shaped slide rail, the signal point cross section of the transmitting subject is corrected based on the type of the ring-shaped slide rail to obtain a corrected cross section, and the transmitting point is set at the vertex of the corrected cross section and on the corrected ring-shaped slide rail.

2. The mobile dynamic networking method of star flash near field communication according to claim 1, characterized in that, In the step S1, the method for constructing the signal point cross section of the transmitting subject based on the maximum physical cross section comprises: a standard plane is preset, the included angle θ between the maximum physical cross section and the standard plane is obtained, and the mapping surface of the maximum physical cross section on the standard plane is obtained; Obtaining the maximum emission angle θ in the beam emission range of the sending subject max , the edge length in the mapping surface is enlarged, and the enlarged edge length , wherein L s represents the corresponding edge length in the mapping surface before enlargement, and the mapping surface after enlargement of all edge lengths is taken as the signal point cross section of the emission subject.

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

4. The mobile dynamic networking method of star flash near field communication according to claim 1, wherein, In the step S2, the corrected length is obtained by correcting the initial length r based on the number of times M of emitting the beam and the number of times m of receiving the beam. If M>m, the corrected length R=Mr / m.

5. The mobile dynamic networking method of star flash near field communication according to claim 1, wherein, In the step S2, the linear velocity v of the uniform circular motion of the transmitting unit is obtained, the time T=2πr / v of 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, wherein, If the beam emitted vertically 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 cross section of the transmitting subject, it is recorded as an error state; When in the error state, a circle of transmitting units is added to the periphery of the signal point cross section of the transmitting subject, and the new invalid unit is marked.

7. The mobile dynamic networking method of star flash near field communication according to claim 1, wherein, In the step S3, the method for correcting the signal point cross section of the transmitting subject based on the type of the ring-shaped slide rail to obtain the corrected cross section comprises: If it is a first type of ring-shaped slide rail, no correction is performed, and the signal point cross section of the transmitting subject is recorded as the corrected cross section; If the second type of annular slide rail, pre-set side length gradient LD=(1+λ)LD s wherein λ represents a preset gradient coefficient and λ=0.1, 0.2, 0.3,..., LD s represents the side length in the cross section of the emission main signal point, reconstruct the emission main signal point cross section with the side length gradient LD, stop and record as the corrected cross section when the second type of annular slide rail is in the reconstructed emission main signal point cross section.

8. The mobile dynamic networking method of star flash near field communication according to claim 1, wherein, In the step S3, when the ring-shaped slide rail and the signal point cross section of the transmitting subject have a tangent point, the ring-shaped slide rail is recorded as a second type of ring-shaped slide rail.

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