Design method, device and equipment of wireless friendly composite building material

Abstract

The invention provides a wireless friendly composite building material design method, device and equipment, and the method comprises the steps: building an initial building material model according to obtained target wall design information, the target wall design information comprises the size of a target wall, a bearing material, a thermal insulation material and a cylindrical convex lens structure type, the target wall body comprises a thermal insulation layer and a cylindrical convex lens embedded in the thermal insulation layer; generating section size information of the cylindrical convex lens; determining the focal length and the focal line of the cylindrical convex lens according to the section size information and the relative dielectric constant of the bearing material; according to the focal length and the section size information, path loss from the base station to each horizontal intersection point and transmission loss of each horizontal intersection point on the target horizontal plane are determined, and the horizontal intersection points are intersection points of the target horizontal plane and the incident plane of the cylindrical convex lens; and determining a target building material model according to the path loss and the transmission loss corresponding to each horizontal intersection point. Channel deep fading can be suppressed, and user fairness in a horizontal plane is improved.

Description

Technical Field

[0001] The present application relates to the fields of wireless communications, electromagnetism, construction and civil engineering, and in particular to a design method, device and equipment for wireless-friendly composite building materials. Background Art

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

[0003] The building materials in actual projects need to have multiple functions such as load-bearing, heat preservation, sound insulation, rainproof, fireproof, etc., and are generally composite materials with multi-layer structures. For example, precast concrete sandwich panels are widely used in residential and commercial buildings, and are mainly composed of three layers: concrete layer, insulation layer and concrete layer.

[0004] When electromagnetic waves are incident on composite materials with multi-layer structures, they will penetrate into and out of each layer of material multiple times, and interact with the interfaces of each layer of material in a complex manner, such as multiple reflections, multiple transmissions, and a combination of multiple transmissions and reflections. A large number of theorems and experiments have confirmed that reflection loss and transmission loss are not only affected 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, conductivity) and their internal structure (i.e., thickness). Reflection loss and transmission loss directly determine the changes in the amplitude and phase of the emitted signal, and thus affect the quality of wireless communication reaching the receiver.

[0005] Deep fading of indoor channels is one of the important factors that restrict indoor wireless performance. Specifically, due to the limited indoor volume, complex boundaries, and severe shielding effects, electromagnetic waves undergo a series of effects such as reflection, refraction, scattering, transmission, and diffraction with surrounding objects during indoor propagation, causing the signal received by the receiving end to be a superposition of multiple copies of the transmitted signal. Each copy of the transmitted signal experiences a different path during the propagation process, resulting in different attenuation, delay, and phase shift. When the superimposed received signal is subject to strong destructive interference, we call it a deep fading phenomenon of the channel. The deep fading phenomenon will cause differences in the quality of wireless services in various places indoors, resulting in poor user fairness. Summary of the invention

[0006] The technical purpose to be achieved by the embodiments of the present application is to provide a design method, device and equipment for wireless-friendly composite building materials, so as to solve the problem that the quality of indoor wireless services is affected by deep fading of indoor channels in buildings currently made of composite materials.

[0007] In order to solve the above technical problems, the embodiment of the present application provides a design method of a wireless-friendly composite building material, including:

[0008] Constructing an initial building material model according to the acquired target wall design information, wherein the target wall design information includes the size, load-bearing material, thermal insulation material, and cylindrical convex lens structure type of the target wall, wherein 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;

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

[0010] Determine the focal length and focal line of the cylindrical convex lens according to the cross-sectional dimension information and the relative dielectric constant of the load-bearing material;

[0011] According to the focal length and the cross-sectional size information, determine the path loss from the base station to each horizontal intersection on the target horizontal plane, and the transmission loss of each horizontal intersection, wherein the target horizontal plane is a 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] A target building material model is determined according to the path loss corresponding to each of the horizontal intersection points and the transmission loss.

[0013] Specifically, the method as described above, determining the focal length and focal line of the cylindrical convex lens according to the cross-sectional dimension information and the relative dielectric constant of the load-bearing material, comprises:

[0014] Substituting the cross-sectional dimension information and the relative dielectric constant into a preset focal length calculation method to obtain the focal length, and determining the focal line according to the focal length;

[0015] The preset focal length calculation method is:

[0016]

[0017] in, ∈ is the relative dielectric constant;

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

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

[0020] d is the lens thickness.

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

[0022] Substituting the focal length, the cross-sectional dimension information, and the ordinate of the target intersection into a preset path loss algorithm to obtain the path loss corresponding to the target intersection, where the target intersection is any one of the horizontal intersections;

[0023] The preset path loss algorithm is:

[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 target intersection point;

[0029] λ is the wavelength of electromagnetic wave.

[0030] Specifically, the method as described above, determining the transmission loss of each horizontal intersection on the target horizontal plane according to the focal length and the cross-sectional size information, includes:

[0031] Obtaining an incident surface reflection coefficient and an exit surface reflection coefficient corresponding to a 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 to obtain the transmission loss, wherein the transmission loss algorithm is:

[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 is the reflection coefficient of the incident surface;

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

[0037] Furthermore, in the above method, 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:

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

[0039] Specifically, in the method as described above, determining the target building material model according to the path loss and the transmission loss corresponding to each of the horizontal intersections includes:

[0040] When the products of the transmission loss and the path loss corresponding to each horizontal intersection point are the same, determining the current initial building material model as the target building material model;

[0041] When the product of the transmission loss at each horizontal intersection and the path loss is not the same, adjust the cross-sectional dimension information, and return to execute 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 dielectric constant of the load-bearing material.

[0042] Another preferred embodiment of the present application further provides a control device, comprising:

[0043] A model building module, used to build an initial building material model according to the acquired target wall design information, wherein the target wall design information includes the size, load-bearing material, thermal insulation material and cylindrical convex lens structure type of the target wall, wherein 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] A first processing module is used to generate cross-sectional dimension information of the cylindrical convex lens, wherein the cross-sectional dimension information includes: lens thickness and curvature radius;

[0045] A second processing module, used to determine the focal length and focal line of the cylindrical convex lens according to the cross-sectional size information and the relative dielectric constant of the load-bearing material;

[0046] A third processing module is used to determine the path loss from the base station to each horizontal intersection on the target horizontal plane and the transmission loss of each horizontal intersection according to the focal length and the cross-sectional size information, wherein the target horizontal plane is a horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection is an intersection 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 according to the path loss corresponding to each of the horizontal intersection points and the transmission loss.

[0048] Another preferred embodiment of the present application also 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 implements the steps of the method for designing wireless-friendly composite building materials as described above when executed by the processor.

[0049] Another preferred embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for designing wireless-friendly composite building materials as described above are implemented.

[0050] Yet another preferred embodiment of the present application provides a computer program product, comprising computer instructions, which, when executed by a processor, implement the steps of the method for designing wireless-friendly composite building materials as described above.

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

[0052] The present application changes the propagation mode of electromagnetic waves by setting a cylindrical convex lens in the building material, so that the electromagnetic waves emitted from the material only propagate in a parallel direction within the target horizontal plane, and determines the final required target building material model through the path loss and transmission loss corresponding to each horizontal intersection point, so that no matter where the user equipment is located within the target horizontal plane, it is free from the influence of path loss and multipath effect, and thus receives exactly the same wireless communication quality, thereby achieving the purpose of suppressing deep channel fading and greatly improving user fairness within the target horizontal plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 One of the flow charts of the design method of the wireless-friendly composite building material in this application;

[0054] Figure 2 It is a cross-sectional schematic diagram of various cylindrical convex lens structure types;

[0055] Figure 3 A schematic diagram of the propagation of electromagnetic waves emitted by a base station located at a target horizontal plane to a target wall in this application;

[0056] Figure 4 for Figure 3 Schematic diagram of the cross section based on the target horizontal plane;

[0057] Figure 5 This is the second flow chart of the design method of the wireless-friendly composite building material in this application;

[0058] Figure 6It is a schematic diagram of the structure of the control device in this application. DETAILED DESCRIPTION

[0059] In order to make the technical problems, technical solutions and advantages to be solved by the application clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, for clarity and brevity, the description of known functions and structures has been omitted.

[0060] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0061] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the following processes does not mean 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 the present application.

[0062] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

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

[0064] See also Figure 1 An embodiment of the present application provides a design method for a wireless-friendly composite building material, comprising:

[0065] Step S101, constructing an initial building material model according to the acquired target wall design information, wherein the target wall design information includes the size, load-bearing material, thermal insulation material and cylindrical convex lens structure type of the target wall, wherein 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;

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

[0067] Step S103, determining the focal length and focal line of the cylindrical convex lens according to the cross-sectional dimension information and the relative dielectric constant of the load-bearing material;

[0068] Step S104, determining the path loss from the base station to each horizontal intersection on the target horizontal plane and the transmission loss of each horizontal intersection according to the focal length and the cross-sectional size information, wherein the target horizontal plane is a 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;

[0069] Step S105: determining a target building material model according to the path loss corresponding to each of the horizontal intersection points and the transmission loss.

[0070] The design method of the wireless-friendly composite building material provided in the present application needs to construct an initial building material model according to the pre-acquired target wall design information when in use, wherein the target wall design information includes the size, load-bearing material, thermal insulation material and cylindrical convex lens structure type of the target wall, wherein the size of the target wall is used to determine the overall structural size of the constructed wall, including the length, height and thickness of the wall; Figure 3 As shown, the target wall 1 is a structure made of composite materials, which mainly includes a thermal insulation layer 102 and a cylindrical convex lens 101 embedded in the thermal insulation layer 102. Specifically, the load-bearing material is used to fill the cylindrical convex lens 101, and the thermal insulation material is used to fill the thermal insulation layer 102; Figure 2 As shown in ae in , the cylindrical convex lens structure types include: a double convex lens, a first plano-convex lens, a first positive meniscus lens, a second plano-convex lens (bending in the opposite direction to the first positive meniscus lens) and a second positive meniscus lens (bending in the opposite direction to the first positive meniscus lens). Then, the required initial building material model can be preliminarily constructed based on the above information.

[0071] After obtaining the above initial building material model, in order to ensure fairness among users in the room, the structure of the cylindrical convex lens 101 will be further determined; wherein, firstly, based on the size of the target wall, at least one of the load-bearing material and the thermal insulation material, the initial cross-sectional size information of the cylindrical convex lens 101 is generated, and the cross-sectional size information includes: lens thickness and curvature radius (such as Figure 2 or Figure 4, where the lens thickness needs to be less than the thickness of the target wall. According to the cross-sectional dimension information and the relative dielectric constant corresponding to the above-mentioned load-bearing material, the focal length, focus and focal line corresponding to the cylindrical convex lens 101 can be obtained, where the focus is the point where parallel light on a horizontal plane converges after passing through the cylindrical convex lens 101, the focal length is the distance from the focus to the surface of the cylindrical convex lens 101, and the focal line is the straight line where the focus is located;

[0072] After obtaining the focal length and focal line of the cylindrical convex lens 101, the target horizontal plane 3 (such as Figure 3 or Figure 4 As shown), base station 2 (as shown Figure 3 As shown in the figure, the path loss from the target horizontal plane 3 to each horizontal intersection, and the transmission loss of each horizontal intersection, wherein the target horizontal plane 3 is a horizontal plane at the height of the base station 2 located on the focal line, and the horizontal intersection is the intersection 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 from the base station to the material, the path loss and transmission loss corresponding to each horizontal intersection can be calculated to characterize the wireless communication quality (received power, received signal-to-noise ratio, wireless capacity, coverage, etc.) on the electromagnetic wave propagation route where each horizontal intersection is located, and then the fairness of the wireless communication quality of each horizontal intersection can be judged, and the final target building material model required can be determined.

[0073] In summary, the present application changes the propagation mode of electromagnetic waves by setting a cylindrical convex lens in the building, so that the electromagnetic waves of the emitted material only propagate in a parallel direction within the target horizontal plane, and determines the final required target building material model through the path loss and transmission loss corresponding to each horizontal intersection, so that no matter where the user device is located within the target horizontal plane, it is free from the influence of path loss and multipath effect, and thus receives exactly the same wireless communication quality, thereby achieving the purpose of suppressing deep channel fading and greatly improving user fairness within the target horizontal plane.

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

[0075] 1. The multilayer composite material of filling the cylindrical convex lens 101 structure with load-bearing materials and filling the rest with thermal insulation materials can meet the load-bearing and thermal insulation requirements of the building and has practical significance.

[0076] 2. The load-bearing materials can be made of traditional building materials, such as concrete walls, gypsum boards, wooden boards, glass, etc., which are cheap. The heat-insulating materials can be made of polyurethane foam, rock wool, etc., which are cheap. Therefore, the present application can suppress the deep fading characteristics of indoor channels in a low-cost manner and achieve a high-efficiency improvement in indoor wireless performance.

[0077] 3. The technology of 3D printing technology for shaping building material models is relatively mature, making the technical solution in this application highly feasible.

[0078] 4. The placement of the base station in the technical solution of this application 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 deep fading suppression effect of the indoor channel. The advantage of placing the base station in this way is that the focus of the convex lens is usually close to the building, so that the location of the base station will not affect the visual effect, use function and safety of the room, reducing the inconvenience of use and the risk of accidents.

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

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

[0081] It should be noted that the above-mentioned method of pre-acquiring the target wall design information includes, but is not limited to, detecting a user's manual input or selection, or receiving a 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 is assumed that all user equipment are at the same height), and the height of the user equipment will be determined to be the height of the base station, so as to ensure that the target building material finally obtained meets the actual needs. Among them, the method of obtaining the height of the user equipment includes but is not limited to obtaining it by the user input when initially collecting information.

[0083] Specifically, the method described above, determining the focal length and focal line of the cylindrical convex lens 101 according to the cross-sectional dimension information and the relative dielectric constant of the load-bearing material, comprises:

[0084] Substituting the cross-sectional dimension information and the relative dielectric constant into a preset focal length calculation method to obtain the focal length, and determining the focal line according to the focal length;

[0085] The preset focal length calculation method is:

[0086]

[0087] in, ∈ is the relative dielectric constant;

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

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

[0090] d is 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 dielectric constant of the thermal insulation material is approximately 1 and hardly changes the propagation direction of the electromagnetic wave, the influence of the thermal insulation layer is ignored during the calculation, so that this step specifically involves substituting the cross-sectional dimension information and the relative dielectric constant of the load-bearing material into the above-mentioned preset focal length calculation method, obtaining the corresponding focal length through calculation, and determining the focal point on each plane based on the focal length, and then determining the focal line based on the focal line.

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

[0093] Substituting the focal length, the cross-sectional dimension information, and the ordinate of the target intersection into a preset path loss algorithm to obtain the path loss corresponding to the target intersection, where the target intersection is any one of the horizontal intersections;

[0094] The preset path loss algorithm is:

[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 target intersection point;

[0100] λ is the wavelength of electromagnetic wave.

[0101] In this embodiment, the steps of determining the path loss from the base station to each horizontal intersection on the target horizontal plane are illustrated, wherein a spatial rectangular coordinate system is pre-constructed on the target wall, for example, see Figure 3, set the coordinate origin at the center of the side line on the left side of the bottom surface of the target wall, and establish the spatial rectangular coordinate system based on the right-hand system. At this time, the left and right surfaces of the target wall 1 for electromagnetic wave penetration are respectively located at the positions of zero coordinates and wall thickness on the horizontal axis, the upper and lower surfaces of the target wall are respectively located at the positions of wall height and zero coordinates on the vertical axis, and the front and rear surfaces of the target wall are respectively located at the positions of negative half of the wall length and positive half of the wall length on the vertical axis.

[0102] Furthermore, the focal length, the radius of curvature in the cross-sectional dimension information, and the ordinate of each horizontal intersection are substituted into the above-mentioned preset path loss algorithm for calculation, so as to obtain the path loss of the electromagnetic wave from the base station to each horizontal intersection.

[0103] See also Figure 5 Specifically, the method as described above, determining the transmission loss of each horizontal intersection on the target horizontal plane according to the focal length and the cross-sectional size information, includes:

[0104] Step S501, obtaining 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 a 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 is the reflection coefficient of the incident surface;

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

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

[0111] To facilitate understanding by those skilled in the art, further, in the above method, 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:

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

[0113] To facilitate understanding by those skilled in the art, in this embodiment, an example is given of how to obtain the incident surface reflection coefficient and the exit surface reflection coefficient corresponding to the target intersection. Since the cylindrical convex lens includes the above five types, the incident surface and the exit surface of different types have different concave and convex conditions. Therefore, it is necessary to calculate the corresponding reflection coefficients according to the concave and convex shapes corresponding to the incident surface and the exit surface, the polarization type of the incident wave, and the incident angle corresponding to the target intersection. The specific calculation formula can be expressed as:

[0114]

[0115] z=kr 曲面

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

[0117] j is

[0118] (·) * is complex conjugate;

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

[0120] represents the m-th order Hankel function of the second kind.

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

[0122] Specifically, in the method as described above, determining the target building material model according to the path loss and the transmission loss corresponding to each of the horizontal intersections includes:

[0123] When the products of the transmission loss and the path loss corresponding to each horizontal intersection point are the same, determining the current initial building material model as the target building material model;

[0124] When the product of the transmission loss at each horizontal intersection and the path loss is not the same, adjust the cross-sectional dimension information, and return to execute 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 dielectric constant of the load-bearing material.

[0125] That is, in this implementation, after obtaining the path loss and transmission loss corresponding to each horizontal intersection, the product of the transmission loss and the path loss corresponding to each horizontal intersection will be calculated. If the loss products corresponding to each horizontal intersection are the same, it means that the loss of the electromagnetic waves after passing through each horizontal intersection is consistent, so that the quality of wireless services after passing through each horizontal intersection is the same, and the electromagnetic waves after passing through the horizontal intersections are emitted in parallel without reflection, refraction, etc., so that the quality of wireless services 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 are different, it means that the loss of the electromagnetic wave after passing through each horizontal intersection is inconsistent, and there is still a phenomenon that is not disclosed to users. Therefore, the cross-sectional size information used in the previous calculation is adjusted, and the above calculation and judgment steps are repeated, and it is iterated until the loss products corresponding to each horizontal intersection are the same, and the building material model at this time is determined to be the required target building material model.

[0127] See also Figure 6 Another preferred embodiment of the present application further provides a control device, comprising:

[0128] The model building module 601 is used to build an initial building material model according to the acquired target wall design information, wherein the target wall design information includes the size, load-bearing material, thermal insulation material and cylindrical convex lens structure type of the target wall, wherein 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;

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

[0130] The second processing module 603 is used to determine the focal length and focal line of the cylindrical convex lens according to the cross-sectional size information and the relative dielectric constant 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 on the target horizontal plane and the transmission loss of each horizontal intersection according to the focal length and the cross-sectional size information, wherein the target horizontal plane is a horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection is an intersection 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 according to the path loss corresponding to each of the horizontal intersection points and the transmission loss.

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

[0134] Substituting the cross-sectional dimension information and the relative dielectric constant into a preset focal length calculation method to obtain the focal length, and determining the focal line according to the focal length;

[0135] The preset focal length calculation method is:

[0136]

[0137] in, ∈ is the relative dielectric constant;

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

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

[0140] d is the lens thickness.

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

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

[0143] The preset path loss algorithm is:

[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 target intersection point;

[0149] λ is the wavelength of electromagnetic wave.

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

[0151] A second processing unit is used to obtain an incident surface reflection coefficient and an exit surface reflection coefficient corresponding to a 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 a 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 is the reflection coefficient of the incident surface;

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

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

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

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

[0160] a fourth processing unit, configured to determine that the current initial building material model is a target building material model when the products of the transmission loss and the path loss corresponding to each horizontal intersection point are the same;

[0161] The fifth processing unit is used to adjust the cross-sectional size information when the product of the transmission loss at each horizontal intersection and the path loss is different, and 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 dielectric constant of the load-bearing material.

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

[0163] Another preferred embodiment of the present application also 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, the steps of the method for designing wireless-friendly composite building materials as described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0164] Another preferred embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the design method of the wireless-friendly composite building material as described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0165] Another preferred embodiment of the present application further provides a computer program product, including computer instructions, which, when executed by a processor, implement the steps of the design method of the wireless-friendly composite building material as described above and can achieve the same technical effect. To avoid repetition, they are not described here.

[0166] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

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

[0168] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for designing a wireless-friendly composite building material, characterized in that: include: Constructing an initial building material model according to the acquired target wall design information, wherein the target wall design information includes the size, load-bearing material, thermal insulation material, and cylindrical convex lens structure type of the target wall, wherein 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 cross-sectional dimension information of the cylindrical convex lens, wherein the cross-sectional dimension information includes: lens thickness and curvature radius; Determine the focal length and focal line of the cylindrical convex lens according to the cross-sectional dimension information and the relative dielectric constant of the load-bearing material; According to the focal length and the cross-sectional size information, determine the path loss from the base station to each horizontal intersection on the target horizontal plane, and the transmission loss of each horizontal intersection, wherein the target horizontal plane is a 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; A target building material model is determined according to the path loss corresponding to each of the horizontal intersection points and the transmission loss.

2. The method according to claim 1, characterized in that Determining the focal length and focal line of the cylindrical convex lens according to the cross-sectional dimension information and the relative dielectric constant of the load-bearing material includes: Substituting the cross-sectional dimension information and the relative dielectric constant into a preset focal length calculation method to obtain the focal length, and determining the focal line according to the focal length; The preset focal length calculation method is: in, ∈ is the relative dielectric constant; r1 is the curvature of the incident surface; r2 is the curvature of the exit surface; d is the lens thickness.

3. The method according to claim 1, characterized in that: Determining the path loss from the base station to each horizontal intersection point on the target horizontal plane according to the focal length and the cross-sectional size information includes: Substituting the focal length, the cross-sectional dimension information, and the ordinate of the target intersection into a preset path loss algorithm to obtain the path loss corresponding to the target intersection, where the target intersection is any one of the horizontal intersections; The preset path loss algorithm is: Where L(y) is the path loss corresponding to the target intersection point; D is the focal length; r1 is the radius of curvature of the incident surface; y is the ordinate of the target intersection point; λ is the wavelength of electromagnetic wave.

4. The method according to claim 1, characterized in that: Determining the transmission loss of each horizontal intersection point on the target horizontal plane according to the focal length and the cross-sectional size information includes: Obtaining an incident surface reflection coefficient and an exit surface reflection coefficient corresponding to a 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 to obtain the transmission loss, wherein the transmission loss algorithm is: T(y)=(1-|Γ L | 2 )(1-|C R | 2 ) Where T(y) is the transmission loss corresponding to the target intersection point; Γ L is the reflection coefficient of the incident surface; Γ R is the reflection coefficient of the exit surface.

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 curved surface is determined according to the concave-convex shape of the target curved surface, the polarization type of the incident wave and the incident angle corresponding to the target intersection point. The target curved surface is the incident surface or the exit surface of the cylindrical convex lens.

6. The method according to claim 1, characterized in that The step of determining a target building material model according to the path loss and the transmission loss corresponding to each of the horizontal intersection points comprises: When the products of the transmission loss and the path loss corresponding to each horizontal intersection point are the same, determining the current initial building material model as the target building material model; When the product of the transmission loss at each horizontal intersection and the path loss is not the same, adjust the cross-sectional dimension information, and return to execute 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 dielectric constant of the load-bearing material.

7. A control device, characterized in that: include: A model building module, used to build an initial building material model according to the acquired target wall design information, wherein the target wall design information includes the size, load-bearing material, thermal insulation material and cylindrical convex lens structure type of the target wall, wherein 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; A first processing module is used to generate cross-sectional dimension information of the cylindrical convex lens, wherein the cross-sectional dimension information includes: lens thickness and curvature radius; A second processing module, used to determine the focal length and focal line of the cylindrical convex lens according to the cross-sectional size information and the relative dielectric constant of the load-bearing material; A third processing module is used to determine the path loss from the base station to each horizontal intersection on the target horizontal plane and the transmission loss of each horizontal intersection according to the focal length and the cross-sectional size information, wherein the target horizontal plane is a horizontal plane at the height of the base station, the base station is located on the focal line, and the horizontal intersection is an intersection 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 according to the path loss corresponding to each of the horizontal intersection points and the transmission loss.

8. An electronic device, characterized in that: The invention comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the steps of the method for designing a wireless-friendly composite building material according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for designing a wireless-friendly composite building material according to any one of claims 1 to 6 are implemented.

10. A computer program product, characterized in that The invention comprises computer instructions, which, when executed by a processor, implement the steps of the method for designing a wireless-friendly composite building material according to any one of claims 1 to 6.

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