A design method, device and equipment of a wireless friendly composite building material

Abstract

This application provides a design method, apparatus, and device for wireless-friendly composite building materials, including: constructing an initial building material model based on acquired target wall design information, the target wall design information including the target wall's dimensions, load-bearing materials, insulation materials, and cylindrical convex lens structure type; the target wall including an insulation layer and a cylindrical convex lens embedded in the insulation layer; generating cross-sectional dimension information of the cylindrical convex lens; determining the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing materials; determining the path loss from the base station to each horizontal intersection point on the target horizontal plane, and the transmission loss at each horizontal intersection point, where the horizontal intersection point is the intersection of the target horizontal plane and the incident surface of the cylindrical convex lens, based on the focal length and cross-sectional dimension information; and determining the target building material model based on the path loss and transmission loss corresponding to each horizontal intersection point. This can suppress deep channel fading and improve user fairness within the horizontal plane.

Description

Technical Field

[0001] This application relates to the fields of wireless communication, electromagnetics, architecture and civil engineering, and in particular to a design method, apparatus and equipment for a wireless-friendly composite building material. Background Technology

[0002] Wireless communication plays a crucial role in the blueprint for smart buildings and smart cities. Indoor scenarios, such as homes, office buildings, and smart factories, have high demands for wireless data traffic. Therefore, good indoor wireless performance will become one of the indispensable prerequisites for future buildings.

[0003] Building materials used in actual engineering projects need to have multiple functions such as load-bearing, heat insulation, sound insulation, rainproofing, and fireproofing, and are generally composite materials with multi-layered structures. For example, precast concrete sandwich panels are widely used in residential and commercial buildings, and are mainly composed of three layers: a concrete layer, an insulation layer, and a concrete layer, forming an existing material design scheme.

[0004] When electromagnetic waves are incident on a multilayered composite material, they penetrate and exit each layer multiple times, engaging in complex interactions with the interfaces between layers, such as multiple reflections, multiple transmissions, and combinations of transmission and reflection. Numerous theorems and experiments confirm that reflection and transmission losses are affected not only by the incident angle and the polarization of the electromagnetic wave, but also by the electromagnetic properties of the building materials themselves (i.e., dielectric constant and conductivity) and their internal structure (i.e., thickness). Reflection and transmission losses directly determine the amplitude and phase changes of the emitted signal, thus influencing the quality of wireless communication reaching the receiver.

[0005] Deep fading is a significant factor limiting indoor wireless performance. Specifically, due to limited indoor space, complex boundaries, and severe obstruction, electromagnetic waves undergo a series of interactions with surrounding objects during propagation, including reflection, refraction, scattering, transmission, and diffraction. This results in the received signal being a superposition of multiple copies of the transmitted signal. Each copy of the transmitted signal travels along a different path, experiencing varying attenuation, delay, and phase shift. When the superimposed received signal is subjected to strong destructive interference, this is termed deep fading. Deep fading leads to inconsistencies in wireless service quality across different locations within an indoor environment, resulting in poor user fairness. Summary of the Invention

[0006] The technical objective of this application is to provide a design method, apparatus, and equipment for wireless-friendly composite building materials, in order to solve the problem of indoor wireless service quality being affected by deep fading of indoor channels in buildings currently constructed of composite materials.

[0007] To address the aforementioned technical problems, this application provides a design method for a wireless-friendly composite building material, comprising:

[0008] An initial building material model is constructed based on the obtained target wall design information. The target wall design information includes the dimensions of the target wall, load-bearing materials, insulation materials, and cylindrical convex lens structure type. The target wall includes an insulation layer and a cylindrical convex lens embedded in the insulation layer. The load-bearing material is used to fill the cylindrical convex lens, and the insulation material is used to fill the insulation layer.

[0009] Generate the cross-sectional dimension information of the cylindrical convex lens, the cross-sectional dimension information including: lens thickness and radius of curvature;

[0010] Based on the cross-sectional dimensions and the relative permittivity of the load-bearing material, the focal length and focal line of the cylindrical convex lens are determined.

[0011] Based on the focal length and the cross-sectional dimensions, the path loss from the base station to each horizontal intersection on the target horizontal plane, and the transmission loss at each horizontal intersection are determined. The target horizontal plane is the horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection is the intersection of the target horizontal plane and the incident surface of the cylindrical convex lens.

[0012] The target building material model is determined based on the path loss and transmission loss corresponding to each of the horizontal intersection points.

[0013] Specifically, in the method described above, determining the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing material includes:

[0014] The cross-sectional dimensions and the relative permittivity are substituted into a preset focal length calculation method to obtain the focal length, and the focal line is determined based on the focal length.

[0015] The method for calculating the preset focal length is as follows:

[0016]

[0017] in, ∈ represents the relative permittivity;

[0018] r1 is the curvature of the incident surface;

[0019] r2 is the curvature of the exit surface;

[0020] d represents the lens thickness.

[0021] Specifically, the method described above, based on the focal length and the cross-sectional size information, determines the path loss from the base station to each horizontal intersection point on the target horizontal plane, including:

[0022] Substitute the focal length, the cross-sectional size information, and the ordinate of the target intersection point into the preset path loss algorithm to obtain the path loss corresponding to the target intersection point, where the target intersection point is any one of the horizontal intersection points;

[0023] The preset path loss algorithm is as follows:

[0024]

[0025] Where L(y) is the path loss corresponding to the target intersection point;

[0026] D is the focal length;

[0027] r1 is the radius of curvature of the incident surface;

[0028] y is the ordinate of the intersection point;

[0029] λ is the wavelength of the electromagnetic wave.

[0030] Specifically, the method described above, based on the focal length and the cross-sectional size information, determines the transmission loss at each of the horizontal intersection points on the target horizontal plane, including:

[0031] Obtain the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection point on the cylindrical convex lens, wherein the target intersection point is any one of the horizontal intersection points;

[0032] Substituting the incident surface reflection coefficient and the exit surface reflection coefficient into the transmission loss algorithm, the transmission loss is obtained, wherein the transmission loss algorithm is as follows:

[0033] T(y)=(1-|Γ L | 2 )(1-|Γ R | 2 )

[0034] Where T(y) is the transmission loss corresponding to the target intersection point;

[0035] Γ L The incident surface reflection coefficient;

[0036] Γ R The reflection coefficient of the exit surface is denoted as .

[0037] Furthermore, in the method described above, obtaining the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection point on the cylindrical convex lens includes:

[0038] The reflection coefficient corresponding to the target surface is determined based on the concave-convex shape of the target surface, the type of incident wave, and the incident angle corresponding to the intersection point of the target. The target surface is the incident surface or the exit surface of the cylindrical convex lens.

[0039] Specifically, in the method described above, determining the target building material model based on the path loss and transmission loss corresponding to each of the horizontal intersection points includes:

[0040] When the product of the transmission loss and the path loss at each horizontal intersection point is the same, the current initial building material model is determined as the target building material model.

[0041] When the product of the transmission loss and the path loss at each horizontal intersection point is not the same, the cross-sectional dimension information is adjusted, and the process returns to the step of determining the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing material.

[0042] Another preferred embodiment of this application also provides a control device, including:

[0043] The model building module is used to build an initial building material model based on the obtained target wall design information. The target wall design information includes the dimensions of the target wall, load-bearing materials, thermal insulation materials, and cylindrical convex lens structure type. The target wall includes a thermal insulation layer and a cylindrical convex lens embedded in the thermal insulation layer. The load-bearing material is used to fill the cylindrical convex lens, and the thermal insulation material is used to fill the thermal insulation layer.

[0044] The first processing module is used to generate the cross-sectional dimension information of the cylindrical convex lens, the cross-sectional dimension information including: lens thickness and radius of curvature;

[0045] The second processing module is used to determine the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing material.

[0046] The third processing module is used to determine the path loss from the base station to each horizontal intersection point on the target horizontal plane, and the transmission loss of each horizontal intersection point, based on the focal length and the cross-sectional size information. The target horizontal plane is the horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection point is the intersection point of the target horizontal plane and the incident surface of the cylindrical convex lens.

[0047] The fourth processing module is used to determine the target building material model based on the path loss and transmission loss corresponding to each of the horizontal intersection points.

[0048] Another preferred embodiment of this application provides an electronic device including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the design method for wireless-friendly composite building materials as described above.

[0049] Another preferred embodiment of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the design method for wireless-friendly composite building materials as described above.

[0050] Another preferred embodiment of this application provides a computer program product including computer instructions that, when executed by a processor, implement the steps of the design method for wireless-friendly composite building materials as described above.

[0051] Compared with the prior art, the design method, apparatus and equipment for a wireless-friendly composite building material provided in this application have at least the following beneficial effects:

[0052] This application alters the propagation mode of electromagnetic waves by incorporating cylindrical convex lenses within building materials. This ensures that the electromagnetic waves emanating from the material propagate only in a parallel direction within the target horizontal plane. By analyzing the path loss and transmission loss at each horizontal intersection point, the final target building material model is determined. This ensures that regardless of the user equipment's location within the target horizontal plane, it is unaffected by path loss and multipath effects, thus receiving identical wireless communication quality. This achieves the goal of suppressing deep channel fading and significantly improves user fairness within the target horizontal plane. Attached Figure Description

[0053] Figure 1 This is one of the flowcharts illustrating the design method for wireless-friendly composite building materials in this application;

[0054] Figure 2 Schematic diagrams of cross-sections for various cylindrical convex lens structures;

[0055] Figure 3 This is a schematic diagram of the propagation of electromagnetic waves emitted by a base station located on the target horizontal plane towards the target wall in this application;

[0056] Figure 4 for Figure 3 A schematic diagram of a cross-section based on the target horizontal plane;

[0057] Figure 5 This is the second flowchart illustrating the design method for wireless-friendly composite building materials in this application;

[0058] Figure 6This is a schematic diagram of the control device in this application. Detailed Implementation

[0059] To make the technical problems, technical solutions, and advantages of this application clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0060] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0061] In the various embodiments of this application, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0062] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0063] In the embodiments provided in this application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0064] See Figure 1 One embodiment of this application provides a design method for a wireless-friendly composite building material, comprising:

[0065] Step S101: Construct an initial building material model based on the obtained target wall design information. The target wall design information includes the dimensions of the target wall, load-bearing materials, insulation materials, and cylindrical convex lens structure type. The target wall includes an insulation layer and a cylindrical convex lens embedded in the insulation layer. The load-bearing material is used to fill the cylindrical convex lens, and the insulation material is used to fill the insulation layer.

[0066] Step S102: Generate the cross-sectional dimension information of the cylindrical convex lens, the cross-sectional dimension information including: lens thickness and radius of curvature;

[0067] Step S103: Determine the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing material;

[0068] Step S104: Based on the focal length and the cross-sectional size information, determine the path loss from the base station to each horizontal intersection point on the target horizontal plane, and the transmission loss of each horizontal intersection point, wherein the target horizontal plane is the horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection point is the intersection point of the target horizontal plane and the incident surface of the cylindrical convex lens.

[0069] Step S105: Determine the target building material model based on the path loss and transmission loss corresponding to each of the horizontal intersection points.

[0070] The design method for wireless-friendly composite building materials provided in this application requires the construction of an initial building material model based on pre-acquired target wall design information. This target wall design information includes the dimensions of the target wall, load-bearing materials, insulation materials, and the type of cylindrical convex lens structure. The dimensions of the target wall are used to determine the overall structural dimensions of the constructed wall, including its length, height, and thickness. Figure 3 As shown, the target wall 1 is a structure made of composite materials, mainly including an insulation layer 102 and a cylindrical convex lens 101 embedded in the insulation layer 102. Specifically, the load-bearing material is used to fill the cylindrical convex lens 101, and the insulation material is used to fill the insulation layer 102; as shown... Figure 2 As shown in Figure ae, the cylindrical convex lens structure types include: biconvex lens, first plano-convex lens, first positive meniscus lens, second plano-convex lens (with curvature opposite to that of the first positive meniscus lens), and second positive meniscus lens (with curvature opposite to that of the first positive meniscus lens). Therefore, based on the above information, a preliminary initial building material model can be constructed.

[0071] After obtaining the initial building material model, to ensure fairness among users in the room, the structure of the cylindrical convex lens 101 will be further determined. Firstly, based on at least one of the dimensions of the target wall, load-bearing materials, and insulation materials, initial cross-sectional dimension information of the cylindrical convex lens 101 will be generated. This cross-sectional dimension information includes: lens thickness and radius of curvature (e.g., ...). Figure 2 or Figure 4(as shown by r1 and r2 in the figure), where the lens thickness needs to be less than the thickness of the target wall. Based on the cross-sectional dimensions and the relative permittivity of the load-bearing material, the focal length, focal point, and focal line of the cylindrical convex lens 101 can be calculated. The focal point is the point where parallel light rays on a horizontal plane converge after passing through the cylindrical convex lens 101. The focal length is the distance from the focal point to the surface of the cylindrical convex lens 101, and the focal line is the straight line where the focal point is located.

[0072] After obtaining the focal length and focal line of the cylindrical convex lens 101, the target horizontal plane 3 (e.g., ...) can be determined based on the focal length and cross-sectional dimensions. Figure 3 or Figure 4 On base station 2 (as shown) Figure 3 The path loss to each horizontal intersection point (as shown) and the transmission loss at each horizontal intersection point are calculated. The target horizontal plane 3 is the horizontal plane at the height of the base station 2 located on the focal line. The horizontal intersection point is the intersection point of the target horizontal plane 3 and the incident surface of the cylindrical convex lens 101. Since the propagation direction of the electromagnetic wave after passing through the cylindrical convex lens 101 is horizontal, and the transmission characteristics of the composite material can be used to compensate for the propagation loss between the base station and the material, the wireless communication quality (received power, received signal-to-noise ratio, wireless capacity, coverage, etc.) on the electromagnetic wave propagation path at each horizontal intersection point can be characterized by calculating the path loss and transmission loss corresponding to each horizontal intersection point. In this way, the fairness of the wireless communication quality at each horizontal intersection point can be judged, and the final target building material model required can be determined.

[0073] In summary, this application alters the propagation mode of electromagnetic waves by incorporating cylindrical convex lenses within the building, ensuring that the electromagnetic waves emitted from the material propagate only in a parallel direction within the target horizontal plane. By analyzing the path loss and transmission loss at each horizontal intersection point, the final target building material model is determined. This ensures that regardless of the user equipment's location within the target horizontal plane, it is unaffected by path loss and multipath effects, thus receiving identical wireless communication quality. This achieves the goal of suppressing deep channel fading and significantly improves user fairness within the target horizontal plane.

[0074] Furthermore, the technical solution of this application also has the following advantages:

[0075] 1. The multi-layer composite material, which fills the cylindrical convex lens 101 structure with load-bearing material and fills the rest with thermal insulation material, can meet the load-bearing and thermal insulation requirements of the building and has practical significance.

[0076] 2. Load-bearing materials can be traditional building materials, such as concrete walls, gypsum board, wood panels, and glass, which are inexpensive. Insulation materials can be polyurethane foam, rock wool, etc., which are also inexpensive. Therefore, this application can suppress deep fading characteristics of indoor channels in a low-cost manner, achieving a high-efficiency improvement in indoor wireless performance.

[0077] 3. The technology of 3D printing to create building material models is relatively mature, which makes the technical solution in this application highly feasible.

[0078] 4. In the technical solution of this application, the base station placement location needs to be adapted to the designed building material model with a cylindrical convex lens, that is, the base station is placed at the focal line of the cylindrical convex lens 101, in order to achieve the effect of suppressing deep fading of indoor channels. The advantage of placing the base station in this way is that the focal point of the convex lens is usually close to the building, so that the location of the base station will not affect the visual effect, functionality and safety of the room, reducing inconvenience and accident risk.

[0079] It should be noted that, in one specific implementation, when obtaining the design information of the target wall, the room 4 where the target wall is located (e.g., Figure 3 The overall design information (or as shown in Figure 4) includes the room dimensions (length, width, and height). The environmental information of the target room can be determined by these room dimensions, which is the environmental information when the base station interacts with the user equipment in the target room via electromagnetic waves.

[0080] In the above embodiments, taking a cubic house as an example, except for the target wall, the other walls, ceiling and floor are all provided with wave-absorbing materials, and it is assumed that the wave-absorbing materials can completely absorb electromagnetic waves.

[0081] It should be noted that the methods for obtaining the target wall design information in advance as described above include, but are not limited to, detecting user manual input or selection, or receiving the corresponding design information file.

[0082] It should be noted that, in order to accurately calculate the path loss corresponding to the base station, the height of the user equipment in the design will be obtained first (if there are multiple user equipment, it will be assumed that all user equipment is located at the same height), and this user equipment height will be determined as the height of the base station, thereby ensuring that the final target building materials meet the actual requirements. The methods for obtaining the user equipment height include, but are not limited to, obtaining it from user input during the initial information collection.

[0083] Specifically, the method described above, determining the focal length and focal line of the cylindrical convex lens 101 based on the cross-sectional dimension information and the relative permittivity of the load-bearing material, includes:

[0084] The cross-sectional dimensions and the relative permittivity are substituted into a preset focal length calculation method to obtain the focal length, and the focal line is determined based on the focal length.

[0085] The method for calculating the preset focal length is as follows:

[0086]

[0087] in, ∈ represents the relative permittivity;

[0088] r1 is the curvature of the incident surface;

[0089] r2 is the curvature of the exit surface;

[0090] d represents the lens thickness.

[0091] In this embodiment, a specific example is given of how to determine the focal length and focal line of the cylindrical convex lens 101. Since the relative permittivity of the thermal insulation material is approximately 1, it hardly changes the direction of electromagnetic wave propagation. Therefore, the influence of the thermal insulation layer is ignored in the calculation. Specifically, this step involves substituting the cross-sectional size information and the relative permittivity of the load-bearing material into the above-mentioned preset focal length calculation method, obtaining the corresponding focal length through calculation, determining the focal points on each plane based on the focal length, and then determining the focal line based on the line connecting the focal points.

[0092] Specifically, the method described above, based on the focal length and the cross-sectional size information, determines the path loss from the base station to each horizontal intersection point on the target horizontal plane, including:

[0093] Substitute the focal length, the cross-sectional size information, and the ordinate of the target intersection point into the preset path loss algorithm to obtain the path loss corresponding to the target intersection point, where the target intersection point is any one of the horizontal intersection points;

[0094] The preset path loss algorithm is as follows:

[0095]

[0096] Where L(y) is the path loss corresponding to the target intersection point;

[0097] D is the focal length;

[0098] r1 is the radius of curvature of the incident surface;

[0099] y is the ordinate of the intersection point;

[0100] λ is the wavelength of the electromagnetic wave.

[0101] This embodiment illustrates the steps for determining the path loss from the base station to each horizontal intersection point on the target horizontal plane. A spatial Cartesian coordinate system is pre-constructed on the target wall; for example, see [link to documentation]. Figure 3The origin of the coordinate system is set at the center of the side line on the left side of the bottom surface of the target wall, and the spatial rectangular coordinate system is established based on the right-hand rule. At this time, the left and right surfaces of the target wall 1 that are penetrated by electromagnetic waves are located at the positions with zero coordinates and wall thickness on the horizontal axis, respectively. The upper and lower surfaces of the target wall are located at the positions with wall height and zero coordinates on the vertical axis, respectively. The front and rear surfaces of the target wall are located at the positions with negative half of the wall length and positive half of the wall length on the vertical axis, respectively.

[0102] Then, by substituting the focal length, the radius of curvature in the cross-sectional dimension information, and the ordinate of each horizontal intersection point into the aforementioned preset path loss algorithm, the path loss of the electromagnetic wave from the base station to each horizontal intersection point can be obtained.

[0103] See Figure 5 Specifically, the method described above, based on the focal length and the cross-sectional dimension information, determines the transmission loss at each of the horizontal intersection points on the target horizontal plane, including:

[0104] Step S501: Obtain the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection point on the cylindrical convex lens 101, wherein the target intersection point is any one of the horizontal intersection points;

[0105] Step S502: Substitute the incident surface reflection coefficient and the exit surface reflection coefficient into the transmission loss algorithm to obtain the transmission loss, wherein the transmission loss algorithm is:

[0106] T(y)=(1-|Γ L | 2 )(1-|Γ R | 2 )

[0107] Where T(y) is the transmission loss corresponding to the target intersection point y;

[0108] Γ L The incident surface reflection coefficient;

[0109] Γ R The reflection coefficient of the exit surface is denoted as .

[0110] This embodiment illustrates the steps for obtaining the transmission loss at each horizontal intersection point on a target horizontal plane, wherein, see [link to relevant documentation]. Figure 3The cylindrical convex lens 101 has an incident surface 1011 (facing the base station) for receiving electromagnetic waves and an exit surface 1012 for transmitting electromagnetic waves. When calculating the transmission loss at each horizontal intersection point, it is necessary to first obtain the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to each horizontal intersection point, and then substitute the incident surface reflection coefficient and the exit surface reflection coefficient into the above transmission loss algorithm to obtain the transmission loss corresponding to each horizontal intersection point.

[0111] To facilitate understanding by those skilled in the art, further, in the method described above, obtaining the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection point on the cylindrical convex lens includes:

[0112] The reflection coefficient corresponding to the target surface is determined based on the concave-convex shape of the target surface, the polarization type of the incident wave, and the incident angle corresponding to the intersection point of the target. The target surface is the incident surface or the exit surface of the cylindrical convex lens.

[0113] To facilitate understanding by those skilled in the art, this embodiment provides an example of how to obtain the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection point. Since cylindrical convex lenses include the five types mentioned above, the concavity and convexity of the incident and exit surfaces differ for different types. Therefore, it is necessary to calculate the corresponding reflection coefficients based on the concavity and convexity shapes of the incident and exit surfaces, the polarization type of the incident wave, and the incident angle corresponding to the target intersection point. The specific calculation formula is as follows:

[0114]

[0115] z = kr 曲面

[0116] Wherein, φ is the incident angle of the surface, which can be obtained from the focal length, the ordinate of the intersection point of the target and the radius of curvature of the surface. The specific calculation method is relatively conventional and will not be elaborated here.

[0117] j is

[0118] (·) * For complex conjugate;

[0119] k is the wave number in free space;

[0120] This represents the m-th order second-type Hankel function.

[0121] Then, based on the concave and convex shapes of the incident and exit surfaces and the polarization type of the incident wave, the specific algorithm can be determined and the required reflection coefficient can be calculated.

[0122] Specifically, in the method described above, determining the target building material model based on the path loss and transmission loss corresponding to each of the horizontal intersection points includes:

[0123] When the product of the transmission loss and the path loss at each horizontal intersection point is the same, the current initial building material model is determined as the target building material model.

[0124] When the product of the transmission loss and the path loss at each horizontal intersection point is not the same, the cross-sectional dimension information is adjusted, and the process returns to the step of determining the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing material.

[0125] That is, in this implementation, after obtaining the path loss and transmission loss corresponding to each horizontal intersection point, the product of the transmission loss and path loss corresponding to each horizontal intersection point is calculated. If the loss products corresponding to each horizontal intersection point are the same, it indicates that the loss of electromagnetic waves after passing through each horizontal intersection point is consistent, so that the wireless service quality after passing through each horizontal intersection point is the same. Moreover, the electromagnetic waves after passing through the horizontal intersection points are emitted in parallel, without reflection or refraction, so that the wireless service quality in the space is the same. At this time, it can be determined that the current initial building material model is the required target building material model, and the fairness of users in the space is guaranteed.

[0126] If the loss products corresponding to each horizontal intersection point are not the same, it indicates that the electromagnetic wave loss after passing through each horizontal intersection point is inconsistent, and there is still a phenomenon that the user does not disclose. Therefore, the cross-sectional dimension information used in the previous calculation is adjusted, and the above calculation and judgment steps are repeated for iteration until the loss products corresponding to each horizontal intersection point are the same, and the building material model at this time is determined to be the target building material model.

[0127] See Figure 6 Another preferred embodiment of this application also provides a control device, including:

[0128] The model building module 601 is used to build an initial building material model based on the obtained target wall design information. The target wall design information includes the dimensions of the target wall, load-bearing materials, insulation materials, and cylindrical convex lens structure type. The target wall includes an insulation layer and a cylindrical convex lens embedded in the insulation layer. The load-bearing material is used to fill the cylindrical convex lens, and the insulation material is used to fill the insulation layer.

[0129] The first processing module 602 is used to generate the cross-sectional dimension information of the cylindrical convex lens, the cross-sectional dimension information including: lens thickness and radius of curvature;

[0130] The second processing module 603 is used to determine the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing material.

[0131] The third processing module 604 is used to determine the path loss from the base station to each horizontal intersection point on the target horizontal plane, and the transmission loss of each horizontal intersection point, based on the focal length and the cross-sectional size information. The target horizontal plane is the horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection point is the intersection point of the target horizontal plane and the incident surface of the cylindrical convex lens.

[0132] The fourth processing module 605 is used to determine the target building material model based on the path loss and transmission loss corresponding to each of the horizontal intersection points.

[0133] Specifically, in the control device described above, the second processing module specifically includes:

[0134] The cross-sectional dimensions and the relative permittivity are substituted into a preset focal length calculation method to obtain the focal length, and the focal line is determined based on the focal length.

[0135] The method for calculating the preset focal length is as follows:

[0136]

[0137] in, ∈ represents the relative permittivity;

[0138] r1 is the curvature of the incident surface;

[0139] r2 is the curvature of the exit surface;

[0140] d represents the lens thickness.

[0141] Specifically, in the control device described above, the third processing module specifically includes:

[0142] The first processing unit is used to substitute the focal length, the cross-sectional size information, and the ordinate of the target intersection point into a preset path loss algorithm to obtain the path loss corresponding to the target intersection point, wherein the target intersection point is any one of the horizontal intersection points;

[0143] The preset path loss algorithm is as follows:

[0144]

[0145] Where L(y) is the path loss corresponding to the target intersection point;

[0146] D is the focal length;

[0147] r1 is the radius of curvature of the incident surface;

[0148] y is the ordinate of the intersection point;

[0149] λ is the wavelength of the electromagnetic wave.

[0150] Specifically, in the control device described above, the third processing module specifically includes:

[0151] The second processing unit is used to obtain the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection point on the cylindrical convex lens, wherein the target intersection point is any one of the horizontal intersection points;

[0152] The third processing unit is used to substitute the incident surface reflection coefficient and the exit surface reflection coefficient into the transmission loss algorithm to obtain the transmission loss, wherein the transmission loss algorithm is:

[0153] T(y)=(1-|Γ L | 2 )(1-|Γ R | 2 )

[0154] Where T(y) is the transmission loss corresponding to the target intersection point y;

[0155] Γ L The incident surface reflection coefficient;

[0156] Γ R The reflection coefficient of the exit surface is denoted as .

[0157] Furthermore, in the control device described above, the second processing unit specifically includes:

[0158] The reflection coefficient corresponding to the target surface is determined based on the concave-convex shape of the target surface, the polarization type of the incident wave, and the incident angle corresponding to the intersection point of the target. The target surface is the incident surface or the exit surface of the cylindrical convex lens.

[0159] Specifically, in the control device described above, the fourth processing module specifically includes:

[0160] The fourth processing unit is used to determine the current initial building material model as the target building material model when the product of the transmission loss and the path loss corresponding to each horizontal intersection point is the same.

[0161] The fifth processing unit is used to adjust the cross-sectional size information when the product of the transmission loss and the path loss at each horizontal intersection is not the same, and then return to execute the step of determining the focal length and focal line of the cylindrical convex lens based on the cross-sectional size information and the relative permittivity of the load-bearing material.

[0162] The control device embodiment of this application corresponds to the embodiment of the design method for the aforementioned wireless-friendly composite building material. All implementation means in the above method embodiments are applicable to the embodiment of this device and can achieve the same technical effect. The control device provided in this application embodiment can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Therefore, the parts that are the same as those in the method embodiments and their beneficial effects will not be described in detail here.

[0163] Another preferred embodiment of this application provides an electronic device, including a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the steps of the design method for wireless-friendly composite building materials as described above and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0164] Another preferred embodiment of this application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the steps of the design method for wireless-friendly composite building materials as described above and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0165] Another preferred embodiment of this application provides a computer program product, including computer instructions, which, when executed by a processor, implement the steps of the design method for wireless-friendly composite building materials as described above, and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0166] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0167] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0168] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A design method for a wireless-friendly composite building material, characterized in that, include: An initial building material model is constructed based on the obtained target wall design information. The target wall design information includes the dimensions of the target wall, load-bearing materials, thermal insulation materials, and cylindrical convex lens structure type. The target wall includes a thermal insulation layer and a cylindrical convex lens embedded in the thermal insulation layer. The load-bearing material is used to fill the cylindrical convex lens, and the thermal insulation material is used to fill the thermal insulation layer. Generate the cross-sectional dimension information of the cylindrical convex lens, the cross-sectional dimension information including: lens thickness and radius of curvature; Based on the cross-sectional dimensions and the relative permittivity of the load-bearing material, the focal length and focal line of the cylindrical convex lens are determined. Based on the focal length and the cross-sectional dimensions, the path loss from the base station to each horizontal intersection on the target horizontal plane, and the transmission loss at each horizontal intersection are determined. The target horizontal plane is the horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection is the intersection of the target horizontal plane and the incident surface of the cylindrical convex lens. The target building material model is determined based on the path loss and transmission loss corresponding to each of the horizontal intersection points. Determining the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimensions and the relative permittivity of the load-bearing material includes: The cross-sectional dimensions and the relative permittivity are substituted into a preset focal length calculation method to obtain the focal length, and the focal line is determined based on the focal length. The step of determining the target building material model based on the path loss and transmission loss corresponding to each of the horizontal intersection points includes: When the product of the transmission loss and the path loss at each horizontal intersection point is the same, the current initial building material model is determined as the target building material model. When the product of the transmission loss and the path loss at each horizontal intersection point is not the same, the cross-sectional dimension information is adjusted, and the process returns to the step of determining the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing material.

2. The method according to claim 1, characterized in that, The method for calculating the preset focal length is as follows: in, , The relative permittivity is denoted as . The curvature of the incident surface; The curvature of the exit surface; This represents the lens thickness.

3. The method according to claim 1, characterized in that, Based on the focal length and cross-sectional dimensions, the path loss from the base station to each horizontal intersection point on the target horizontal plane is determined, including: Substitute the focal length, the cross-sectional size information, and the ordinate of the target intersection point into the preset path loss algorithm to obtain the path loss corresponding to the target intersection point, where the target intersection point is any one of the horizontal intersection points; The preset path loss algorithm is as follows: in, The path loss corresponding to the target intersection point; The focal length is mentioned; Let be the radius of curvature of the incident surface; The ordinate of the intersection point; The wavelength of electromagnetic waves.

4. The method according to claim 1, characterized in that, Based on the focal length and the cross-sectional dimensions, determine the transmission loss at each horizontal intersection point on the target horizontal plane, including: Obtain the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection point on the cylindrical convex lens, wherein the target intersection point is any one of the horizontal intersection points; Substituting the incident surface reflection coefficient and the exit surface reflection coefficient into the transmission loss algorithm, the transmission loss is obtained, wherein the transmission loss algorithm is as follows: in, The transmission loss corresponding to the target intersection point; The incident surface reflection coefficient; The reflection coefficient of the exit surface is denoted as .

5. The method according to claim 4, characterized in that, The step of obtaining the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection point on the cylindrical convex lens includes: The reflection coefficient corresponding to the target surface is determined based on the concave-convex shape of the target surface, the polarization type of the incident wave, and the incident angle corresponding to the intersection point of the target. The target surface is the incident surface or the exit surface of the cylindrical convex lens.

6. A control device, characterized in that, include: The model building module is used to build an initial building material model based on the obtained target wall design information. The target wall design information includes the dimensions of the target wall, load-bearing materials, thermal insulation materials, and cylindrical convex lens structure type. The target wall includes a thermal insulation layer and a cylindrical convex lens embedded in the thermal insulation layer. The load-bearing material is used to fill the cylindrical convex lens, and the thermal insulation material is used to fill the thermal insulation layer. The first processing module is used to generate the cross-sectional dimension information of the cylindrical convex lens, the cross-sectional dimension information including: lens thickness and radius of curvature; The second processing module is used to determine the focal length and focal line of the cylindrical convex lens based on the cross-sectional dimension information and the relative permittivity of the load-bearing material. The third processing module is used to determine the path loss from the base station to each horizontal intersection point on the target horizontal plane, and the transmission loss of each horizontal intersection point, based on the focal length and the cross-sectional size information. The target horizontal plane is the horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection point is the intersection point of the target horizontal plane and the incident surface of the cylindrical convex lens. The fourth processing module is used to determine the target building material model based on the path loss and transmission loss corresponding to each of the horizontal intersection points. The second processing module specifically includes: The cross-sectional dimensions and the relative permittivity are substituted into a preset focal length calculation method to obtain the focal length, and the focal line is determined based on the focal length. The fourth processing module specifically includes: The fourth processing unit is used to determine the current initial building material model as the target building material model when the product of the transmission loss and the path loss corresponding to each horizontal intersection point is the same. The fifth processing unit is used to adjust the cross-sectional size information when the product of the transmission loss and the path loss at each horizontal intersection is not the same, and then return to execute the step of determining the focal length and focal line of the cylindrical convex lens based on the cross-sectional size information and the relative permittivity of the load-bearing material.

7. An electronic device, characterized in that, The invention includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the design method for the wireless-friendly composite building material as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the steps of the design method for the wireless-friendly composite building material as described in any one of claims 1 to 5.

9. A computer program product, characterized in that, It includes computer instructions that, when executed by a processor, implement the steps of the design method for the wireless-friendly composite building material as described in any one of claims 1 to 5.

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