Space reflector antenna cell skeleton structure, method, system, medium and apparatus

Abstract

An equal-interval modular space reflector antenna cell framework structure, a generation method, a system, a medium and equipment, in the method, an envelope polygon of a center cell of the space reflector antenna cell framework is generated; an envelope polygon of a high-level cell in a main direction of the space reflector antenna cell framework is established, cell envelope polygons in other directions of the space reflector antenna cell framework are established, the high-level cell is arranged in a circumferential array based on a center point of the center cell as a reference, and an envelope polygon of the high-level cell in the other directions is obtained; key points of the cell framework structure are determined from a vertex of the envelope polygon of the center cell and a geometric center of the center cell on a spherical surface, the key points are extended in a direction from a spherical center to the key points by a distance of a back frame to obtain new key points; and the key points are sequentially connected to obtain the space reflector antenna cell framework. The method meets the folding and unfolding requirements of the space reflector antenna, and reserves installation space for an adaptive adjustment mechanism between cells.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of space reflector antenna, in particular to an equal-interval modular space reflector antenna cell framework structure, method, system, medium and equipment. BACKGROUND

[0002] The space reflector antenna is parabolic in shape and can be fitted with a spherical surface. The traditional reflector antenna has a small overall size, and only one folding and unfolding mechanism is needed to fold up the entire antenna and put it into the fairing of a launch vehicle. With the development of space technology, the requirements for antenna performance are becoming higher and higher. On the one hand, the size requirement of the antenna can reach more than 100 meters, and a single folding and unfolding mechanism cannot meet the transportation requirements, so the antenna needs to be divided into multiple small modules, and a folding and unfolding mechanism is designed for each module. On the other hand, the antenna is required to have self-adaptive adjustment capability. A feasible method is to reserve gaps between the small modules for installing adjustment mechanisms, and at the same time, the equal-interval distance between the gaps should be ensured to reduce the workload in the design process of the antenna support truss. There is an urgent need in the field for an efficient generation method that meets the folding and unfolding requirements of the space reflector antenna while reserving installation space for the self-adaptive adjustment mechanisms between the cells.

[0003] The above information disclosed in the background section is only intended to enhance the understanding of the background of the present application, and therefore can contain information that is not prior art known to those of ordinary skill in the art. SUMMARY

[0004] The present application provides an equal-interval modular space reflector antenna cell framework structure, generation method, system, medium and equipment, which meets the folding and unfolding requirements of the space reflector antenna while reserving installation space for the self-adaptive adjustment mechanisms between the cells.

[0005] A generation method of an equal-interval modular space reflector antenna cell framework structure includes:

[0006] Generating an envelope polygon of a central cell of the space reflector antenna cell framework, wherein the envelope geometry of the central cell on the projection source plane is projected onto the spherical surface by the projection mode to obtain the envelope polygon of the central cell;

[0007] Establishing an envelope polygon of a high-level cell in the main direction of the space reflector antenna cell framework, taking the boundary line in the main direction of the envelope polygon of the central cell as the basis, finding the midpoint position of the boundary line of the envelope polygon of the high-level cell on the spherical surface based on the gap auxiliary circle, projecting the midpoint position of the boundary line onto the projection source plane in reverse as the position reference of the envelope geometry of the high-level cell in the main direction, to establish the envelope geometry of the high-level cell in the main direction, and projecting the envelope geometry of the high-level cell on the projection source plane onto the spherical surface by the projection mode to obtain the envelope polygon of the high-level cell in the main direction;

[0008] establishing the cell envelope polygon of the cell skeleton structure in other directions, taking the center point of the center cell as the reference, arranging the high-level cells in a circular array to obtain the envelope polygon of the high-level cell in other directions;

[0009] The key points of the cell skeleton structure are determined by the vertices of the envelope polygon of the center cell and the geometric center of the envelope polygon on the spherical surface. The key points are extended in the direction from the spherical center to the key points by a distance of a back frame to obtain new key points. The key points are sequentially connected to obtain the cell skeleton structure of the spatial reflector antenna.

[0010] In the method, the size parameters of the center cell are determined by projecting the envelope geometric shape of the center cell on the source plane. The envelope polygon of the center cell is determined by the shape, size parameters and position parameters of the envelope geometric shape of the center cell, and is projected onto the spherical surface by the envelope geometric shape on the source plane. The shape and position parameters of the envelope geometric shape of the center cell are determined by the expected envelope polygon parameters of the center cell.

[0011] In the method, the center of the circle is the midpoint of the boundary of the envelope polygon of the low-level cell in the main direction, the diameter is the expected gap size of the low-level cell, and the circle is drawn on the plane determined by the perpendicular line of the boundary of the envelope polygon of the low-level cell and the spherical center. The circle is the gap auxiliary circle, and the spherical surface intersected by the gap auxiliary circle and the plane produces two intersection points. The midpoint of a certain boundary line of the envelope polygon of the high-level cell in the main direction is a point outside the boundary of the low-level cell. The midpoint is inversely projected onto the projection source plane, and the projection point is the midpoint of a side of the envelope geometric shape of the high-level cell in the main direction. The position parameters of the envelope geometric shape of the high-level cell in the main direction are determined based on the midpoint.

[0012] In the method, the boundary line of the envelope polygon of the high-level cell in the main direction is used to determine the envelope geometric shape parameters of the high-level cell.

[0013] In the method, the envelope geometric shape of the cell in other directions is determined by the envelope geometric shapes of two adjacent low-level cells and the geometric centers of two adjacent cells of the same level.

[0014] In the method, the gap between cells is adjusted by adjusting the radius of the gap auxiliary circle.

[0015] An equal-interval modular spatial reflector antenna cell skeleton structure is generated by the method.

[0016] An equal-interval modular space reflector antenna cell skeleton generation system comprises,

[0017] An envelope polygon generation unit of a central cell is configured to generate an envelope polygon of a central cell of a space reflector antenna cell skeleton, wherein the projection mode projects an envelope geometry of the central cell on a projection source plane onto a spherical surface to obtain the envelope polygon of the central cell.

[0018] An envelope polygon generation unit of a high-level cell in a main direction is configured to establish an envelope polygon of a high-level cell in a main direction of a space reflector antenna cell skeleton, to establish an envelope geometry of the high-level cell in the main direction, based on a boundary line of the envelope polygon of the high-level cell in the main direction, based on a midpoint position of the boundary line of the envelope polygon of the high-level cell on the spherical surface, and based on a position reference of the envelope geometry of the high-level cell on the projection source plane, by inversely projecting the midpoint position of the boundary line of the envelope polygon of the high-level cell on the projection source plane, as the position reference of the envelope geometry of the high-level cell in the main direction, to establish the envelope geometry of the high-level cell in the main direction, and to obtain the envelope polygon of the high-level cell in the main direction by projecting the envelope geometry of the high-level cell on the projection source plane onto the spherical surface by the projection mode.

[0019] An envelope polygon generation unit of a cell in other directions is configured to establish an envelope polygon of a cell in other directions of a space reflector antenna cell skeleton, to establish the envelope polygon of the high-level cell in the other directions by arranging the high-level cells in a circumferential array based on the center point of the central cell as a reference.

[0020] A space reflector antenna cell skeleton generation unit is configured to determine key points of a cell skeleton structure from a vertex of the envelope polygon of the central cell and a geometric center of the vertex on the spherical surface, to obtain new key points by extending the key points in a direction from the center of the spherical surface to the key points by a distance of a back frame, and to obtain the space reflector antenna cell skeleton by sequentially connecting the key points.

[0021] A computer storage medium comprises computer instructions, which, when executed on a computer, cause the computer to perform the method.

[0022] An electronic device comprises:

[0023] A memory, a processor, and a computer program stored on the memory and executable on the processor, wherein,

[0024] The processor implements the method when executing the program.

[0025] Compared with the prior art, the present application has the following advantages: based on the determination of the center cell size and the size of the spherical surface to be fitted, the establishment of the cell envelope polygon is determined according to the direction of the cell to be established, and finally the partial spherical surface is fitted out using, for example, a hexagon, and the adjacent hexagons leave a gap with equal gap spacing, which meets the folding and unfolding requirements of the modular antenna cell and the installation requirements of the adaptive structure. BRIEF DESCRIPTION OF DRAWINGS

[0026] Various other advantages and benefits of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not to be considered limitations of the present application. It should be readily understood that the drawings described below are only some embodiments of the present application, and other drawings can be obtained from these drawings by those of ordinary skill in the art without creative labor. Moreover, the same reference numerals are used to represent the same components throughout the drawings.

[0027] In the drawings:

[0028] Figure 1 is a flowchart of the present application;

[0029] Figure 2 is a part naming diagram of the present application;

[0030] Figure 3 is a part naming diagram of the present application;

[0031] Figure 4 is a center cell envelope polygon generation diagram of the present application;

[0032] Figure 5 is an interval gap auxiliary circle generation diagram of the present application;

[0033] Figure 6 is a complete interval gap auxiliary circle generation diagram of the present application;

[0034] Figure 7 is a main direction advanced envelope geometry boundary line midpoint generation diagram of the present application;

[0035] Figure 8 is a main direction advanced envelope geometry generation diagram of the present application;

[0036] Figure 9 is a main direction advanced envelope polygon generation diagram of the present application;

[0037] Figure 10 is a main direction circumferential advanced envelope geometry generation diagram of the present application;

[0038] Figure 11Fig. 1 is a schematic diagram of a high-level envelope polygon generation in a main direction of the present application;

[0039] Figure 12 Fig. 2 is a schematic diagram of a high-level envelope geometry center point generation in other directions of the present application;

[0040] Figure 13 Fig. 3 is a schematic diagram of a high-level envelope geometry generation in other directions of the present application;

[0041] Figure 14 Fig. 4 is a schematic diagram of a high-level envelope polygon generation in other directions of the present application;

[0042] Figure 15 Fig. 5 is a schematic diagram of a high-level envelope polygon generation in other directions of the present application;

[0043] Figure 16 Fig. 6 is a final rendering of the present application;

[0044] Figure 17 Fig. 7 is a final rendering of the present application.

[0045] The present application will be further explained with reference to the drawings and embodiments. DETAILED DESCRIPTION

[0046] The specific embodiments of the present application will be described in greater detail below with reference to the drawings. Although the specific embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood and so that the scope of the present application can be conveyed to those skilled in the art.

[0047] It should be noted that certain terms have been used throughout the specification and claims which have been used for the purpose of clarity in describing the application. Those skilled in the art will appreciate that the same component can be referred to by different names and that the name given is not intended to limit the component. As used throughout this application, the following terms have the following meanings. "Include" or "comprising" as used herein is meant to be interpreted as "including but not limited to." The description of the preferred embodiments of the application has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the application to the precise form disclosed. The description was presented as an illustrative example of the application and should not be used to construe the scope of the application. The scope of the application is to be only as defined by the claims appended hereto.

[0048] For the purpose of clarity, the following will further explain the embodiments of the present application with reference to the drawings and specific embodiments. The drawings do not constitute a limitation on the embodiments of the present application.

[0049] As Figures 1 to 17As shown, the method for generating the equal-interval modular space reflector antenna cell framework structure comprises the following steps:

[0050] Generating an envelope polygon of the central cell of the space reflector antenna cell framework, wherein the envelope geometry of the central cell on the projection source plane is projected onto the spherical surface in a projection mode to obtain the envelope polygon of the central cell; for example, the high-level cell and the low-level cell refer to relative high-level or low-level, and there is no absolute level division, and the central cell is the lowest level cell, which is sequentially increased from inside to outside.

[0051] Establishing the envelope polygon of the high-level cell in the main direction of the space reflector antenna cell framework, taking the boundary line in the main direction of the envelope polygon of the central cell as the basis, finding the midpoint position of the boundary line of the envelope polygon of the high-level cell on the spherical surface based on the gap auxiliary circle, reversely projecting the midpoint position of the boundary line onto the projection source plane as the position reference of the envelope geometry of the high-level cell in the main direction, to establish the envelope geometry of the high-level cell in the main direction, and projecting the envelope geometry of the high-level cell on the projection source plane onto the spherical surface in the projection mode to obtain the envelope polygon of the high-level cell in the main direction;

[0052] Establishing the cell envelope polygon in other directions of the space reflector antenna cell framework, and arranging the high-level cells in a circumferential array based on the central point of the central cell to obtain the envelope polygon of the high-level cell in other directions;

[0053] Determining the key points of the cell framework structure from the vertex of the envelope polygon of the central cell and the geometric center thereof on the spherical surface, extending the key points in the direction from the spherical center to the key points by a distance of a back frame to obtain new key points, and sequentially connecting the key points to obtain the space reflector antenna cell framework structure.

[0054] In the preferred embodiment of the method for generating the equal-interval modular space reflector antenna cell framework structure, the size parameter of the central cell is determined by the envelope geometry of the central cell on the projection source plane, the envelope polygon of the central cell is determined by the shape, size parameter and position parameter of the envelope geometry of the central cell, and is obtained by projecting the envelope geometry on the projection source plane onto the spherical surface, wherein the shape and position parameter of the envelope geometry of the central cell are determined by the expected envelope polygon parameter of the central cell. For example, the envelope polygon is usually a regular hexagon, the size parameter refers to the side length of the regular hexagon, and the position parameter refers to the angle of the regular hexagon relative to the Y-Z reference plane.

[0055] In the preferred embodiment of the method for generating the equal-interval modular space reflector antenna cell skeleton structure, the midpoint of the boundary of the low-level cell envelope polygon in the main direction is taken as the center of a circle, the desired low-level cell interval size is taken as the diameter, a circle is drawn on the plane determined by the perpendicular of the boundary of the low-level cell envelope polygon and the sphere center, the circle is an interval auxiliary circle, the sphere surface section obtained by the interval auxiliary circle intersecting the plane produces two intersection points, the point outside the low-level cell boundary is a midpoint of a certain boundary line of the high-level cell envelope polygon in the main direction, the midpoint is inversely projected onto the projection source plane, the projection point is the midpoint of a certain side of the high-level cell envelope geometry in the main direction, and the position parameters of the high-level cell envelope geometry in the main direction are determined based on the midpoint.

[0056] In the preferred embodiment of the method for generating the equal-interval modular space reflector antenna cell skeleton structure, the boundary line of the high-level cell envelope polygon in the main direction is determined according to the envelope geometry parameters of the high-level cell.

[0057] In the preferred embodiment of the method for generating the equal-interval modular space reflector antenna cell skeleton structure, the cell envelope geometry in other directions is determined by the envelope geometry of two adjacent low-level cells and the geometric center of two adjacent cells of the same level.

[0058] In the preferred embodiment of the method for generating the equal-interval modular space reflector antenna cell skeleton structure, the adjustment of the cell interval is achieved by adjusting the radius of the interval auxiliary circle.

[0059] An equal-interval modular space reflector antenna cell skeleton structure is generated by the method.

[0060] An equal-interval modular space reflector antenna cell skeleton generation system comprises,

[0061] An envelope polygon generation unit for generating the envelope polygon of the central cell of the space reflector antenna cell skeleton, wherein the envelope geometry of the central cell on the projection source plane is projected onto the sphere surface by the projection mode to obtain the envelope polygon of the central cell.

[0062] An envelope polygon generating unit of a high-level cell in a main direction, which is used to establish the envelope polygon of the high-level cell in the main direction of the cell skeleton of the space reflector antenna, and based on the boundary line of the envelope polygon of the high-level cell in the main direction, finds the midpoint position of the boundary line of the envelope polygon of the high-level cell on the sphere, reversely projects the midpoint position of the boundary line of the envelope polygon of the high-level cell on the projection source plane as the position reference of the envelope geometry of the high-level cell in the main direction, establishes the envelope geometry of the high-level cell in the main direction, and projects the envelope geometry of the high-level cell in the main direction on the projection source plane to the sphere to obtain the envelope polygon of the high-level cell in the main direction;

[0063] An envelope polygon generating unit of a cell in other directions, which is used to establish the envelope polygon of the cell in other directions of the cell skeleton of the space reflector antenna, and based on the center point of the center cell, arranges the high-level cells in a circular array to obtain the envelope polygon of the high-level cell in other directions.

[0064] A cell skeleton generating unit of the space reflector antenna, which is used to determine the key points of the cell skeleton structure from the vertices of the envelope polygon of the center cell and the geometric center of the envelope polygon of the center cell on the sphere, extend the key points along the direction from the sphere center to the key points by a distance of a back frame to obtain new key points, and sequentially connect the key points to obtain the cell skeleton of the space reflector antenna.

[0065] A computer storage medium, which comprises computer instructions, and when the computer instructions are run on a computer, make the computer execute the method.

[0066] An electronic device, which comprises:

[0067] A memory, a processor, and a computer program stored on the memory and executable on the processor, wherein,

[0068] The processor implements the method when executing the program.

[0069] In one embodiment, a method for generating an equal-interval modular space reflector antenna cell skeleton structure includes generating a central cell envelope polygon, generating a high-level antenna cell envelope polygon in a main direction, generating a high-level antenna cell envelope polygon in other directions, generating an antenna cell skeleton structure, and designing antenna cell intervals. The method for designing the equal-interval modular space reflector antenna cell skeleton structure projects the envelope geometry of the central cell on a projection plane onto a spherical surface to obtain a central cell envelope polygon. Then, based on the boundary line in the main direction of the central cell envelope polygon, a midpoint position of a boundary line of a high-level antenna cell envelope polygon on the spherical surface is found by designing an interval auxiliary circle, and the midpoint is inversely projected onto the projection plane as a position reference of the high-level cell envelope geometry in the main direction, thereby establishing the high-level cell envelope geometry in the main direction. The envelope geometry of the high-level cell on the projection plane is projected onto the spherical surface again to obtain a high-level cell envelope polygon in the main direction. The high-level cell is arranged in a circumferential array based on the central point of the central cell to obtain high-level cell envelope polygons in other ranges. The process of designing an interval auxiliary circle, inverse projection, envelope geometry establishment, projection, and circumferential array is repeated to establish high-level antenna cell envelope polygons in the main direction and in other ranges.

[0070] When establishing a cell envelope polygon in other directions, the geometric center of a high-level antenna cell envelope geometry in other directions is established based on the adjacent boundary line of the envelope geometry of the adjacent low-level cell of the cell to be established on the projection plane as a position reference. The envelope geometry of the high-level antenna cell in other directions is established based on the geometric center and the center of the envelope geometry of the adjacent same-level cell of the cell to be established. The process of projection and circumferential array is repeated to obtain a secondary antenna cell support truss envelope polygon in other directions. The process of determining a position reference, determining a geometric center, envelope geometry establishment, projection, and circumferential array is repeated to establish a high-level antenna cell envelope polygon in other directions.

[0071] By analogy, the process of designing an interval auxiliary circle, determining a position reference, inverse projection, envelope geometry establishment, projection, and circumferential array is repeated to establish a high-level antenna cell envelope polygon in the main direction. The process of determining a position reference, determining a geometric center, envelope geometry establishment, projection, and circumferential array is repeated to establish a high-level antenna cell envelope polygon in other directions.

[0072] By analogy, the envelope polygon of the advanced antenna cell in the main direction can be established by repeating the process of: designing the gap auxiliary circle-determining the position reference-inverse projection-envelope geometry establishment-projection-circumferential array; and the envelope polygon of the advanced antenna cell in other directions can be established by repeating the process of: determining the position reference-determining the geometric center-envelope geometry establishment-projection-circumferential array.

[0073] The process of: designing the gap auxiliary circle-determining the position reference-inverse projection-envelope geometry establishment-projection-circumferential array has the following corresponding relationship with the modeling steps shown:

[0074] Designing the gap auxiliary circle: when the envelope polygon of the advanced cell in the main direction is established, the position parameters thereof need to be determined. A circle is drawn on the perpendicular line of the boundary of the envelope polygon of the low-level cell and the plane determined by the center of the sphere, with the midpoint of the boundary of the envelope polygon of the low-level cell in the main direction as the center of the circle and the desired low-level cell gap size as the diameter. The circle is the gap auxiliary circle.

[0075] Determining the position reference-inverse projection: the spherical surface section obtained by the intersection of the gap auxiliary circle and the plane has two intersection points, wherein the point outside the boundary of the low-level cell is the midpoint of a certain boundary line of the envelope polygon of the advanced cell in the main direction, and the midpoint is the initial position reference. The midpoint is inversely projected onto the projection source plane, and the projection point is the midpoint of a certain side of the envelope geometry of the advanced cell in the main direction. The point is the position reference of the envelope geometry of the advanced cell in the main direction.

[0076] Establishing the envelope geometry: after the position reference of the envelope geometry of the advanced cell in the main direction is determined, the position parameters of the envelope geometry can be determined, and thus the envelope geometry of the advanced cell in the main direction is completely determined.

[0077] Projection: projecting the completely determined envelope geometry of the advanced cell in the main direction onto the spherical surface can obtain the envelope polygon of the advanced cell in the main direction.

[0078] Circumferential array: performing circumferential array on the envelope polygon of the advanced cell in the main direction with the central cell as the reference can obtain the corresponding envelope polygon of the advanced cell in the module.

[0079] The process of: determining the position reference-determining the geometric center-envelope geometry establishment-projection-circumferential array has the following corresponding relationship with the modeling steps shown:

[0080] Determining the position reference: two low-level cells adjacent to the cell to be established and two same-level cells adjacent to the cell to be established are found. The perpendicular lines of the adjacent edges of the two low-level cells are drawn, and the perpendicular bisector of the perpendicular lines is drawn. The connecting line of the two same-level cells intersects at a point, and the point is the center point of the cell to be established, which is used as the position reference of the cell to be established.

[0081] Envelope geometry establishment: on the basis of the position reference in the previous step, the envelope geometry of the adjacent cell is added to the position reference, which can completely determine the envelope geometry of the cell to be established.

[0082] Projection: projecting the completely determined envelope geometry of the cell to be established onto the spherical surface can obtain the envelope polygon of the cell to be established.

[0083] Circumferential array: taking the cell envelope polygon established in the previous step as the reference, performing circumferential array on the cell envelope polygon can obtain the corresponding cell envelope polygon on the module.

[0084] In one embodiment, please refer to Figures 4 to 10 , which shows the specific implementation of establishing an advanced cell along the main direction, including the following steps:

[0085] S1: as shown in Figure 4 , a projection source plane and a spherical surface to be fitted are established, and a regular hexagon is established on the projection source plane with the spherical center as the center, as the envelope geometry of the center cell. The normal vector of the projection source plane pointing to the spherical center is the projection direction. The envelope polygon of the center cell is obtained by projecting the envelope geometry of the center cell onto the spherical surface. Since the envelope geometry of the center cell is a regular hexagon, and the spherical surface has the property of central symmetry, the set of all cell envelope polygons finally obtained has the same central symmetry property as the regular hexagon. Therefore, when modeling, only the cell envelope polygon with the geometric center of the center cell as the vertex and within the range of 60° angle needs to be established. The envelope polygons in other ranges can be obtained by circumferential array with the geometric center of the center cell envelope polygon as the center and the number of 6.

[0086] S2: as shown in Figure 5 , take the midpoint of an edge of the center cell envelope polygon, and the direction of the center cell envelope polygon pointing to the midpoint is the main direction. Draw a circle 1 on the plane formed by the main direction and the spherical center with the spherical center as the center and the spherical radius as the radius. Obviously, the circle 1 is on the spherical surface.

[0087] S3: as shown in Figures 6 to 7 , take the midpoint determined in the previous step as the center and the desired gap distance as the radius, draw a circle 2 on the plane where the circle 1 is located. The intersection point of the two circles outside the cell boundary is the midpoint of a certain boundary line of the envelope polygon of the advanced cell in the main direction. The inverse projection of the midpoint onto the projection source plane is the midpoint of a certain boundary line of the envelope geometry of the advanced cell in the main direction.

[0088] S4: as shown in Figures 8 to 9As shown in the figure, based on the midpoint determined in the previous step and the envelope geometry of the low-level cell, a regular hexagon is drawn as the envelope geometry of the high-level cell. The new envelope geometry is projected onto the sphere to obtain the envelope polygon of the high-level cell.

[0089] S5: If Figure 10 As shown, the new envelope polygon obtained in the previous step is circularly arrayed to obtain the cell envelope polygons within other ranges.

[0090] like Figure 11 As shown, by repeating the implementation method of establishing high-level cells along the main direction, the envelope geometry and envelope polygon of the high-level cells in the main direction, as well as the array pattern of the cells, can be obtained.

[0091] See also Figures 12 to 15 , shows the specific implementation method of establishing advanced cells along other directions, including the following steps (unless otherwise specified, the cell in this step refers to the envelope geometry of the cell):

[0092] S1: If Figure 12 As shown, two lower-level cells adjacent to the higher-level cell to be established are found, which are cells 1 and 2 in this example, and two same-level cells adjacent to the higher-level cell to be established are found, which are cells 3 and 4 in this example.

[0093] S2: If Figures 12 to 13 As shown, draw a perpendicular line between the adjacent sides of cell 1 and cell 2. Draw the perpendicular bisector of this perpendicular line, which intersects the line connecting cells 3 and 4 at a point. This point is the center point of the cell to be created. Using this point and the adjacent cells as the positional reference, create a regular hexagon as the enveloping geometric shape of the cell to be created.

[0094] S3: If Figure 14 As shown, the envelope geometry of the new cell is projected onto the sphere to obtain the envelope polygons of the advanced cells in other directions.

[0095] S4: As Figure 15 As shown, the new envelope polygon obtained in the previous step is circularly arrayed to obtain the cell envelope polygons within other ranges.

[0096] like Figures 16 to 17 As shown, by repeating the above two steps, a cell envelope polygon with any number of circles can be established within a certain range. When the number of cell circles established meets the requirement, the skeleton structure of all cells can be obtained through the following steps:

[0097] S1: Select the envelope polygon of a cell, retain its vertices, and calculate its geometric center on the sphere. The geometric center is equidistant from all vertices. The geometric center and the vertices serve as the key points of the cell skeleton structure.

[0098] S2: extend the key points along the direction from the sphere center to itself by a distance of a back frame to obtain new key points.

[0099] S3: connect the key points in a certain order to obtain the skeleton structure of the cell.

[0100] S4: perform the above operation on all cells to obtain the skeleton structure of all cells.

[0101] In summary, the design method of the equal-interval modular space reflector antenna support truss skeleton structure is based on the determination of the center cell size and the size of the spherical surface to be fitted, determines and performs cell envelope polygon establishment according to the direction of the cell to be established, finally uses a hexagon to fit part of the spherical surface, and the adjacent hexagons leave an interval and the interval distances are equal, and the requirements of the folding and unfolding of the modular antenna cell and the installation requirements of the adaptive structure are met.

[0102] Although the embodiments of the present application are described above in combination with the drawings, the present application is not limited to the above specific embodiments and application fields, and the above specific embodiments are only illustrative and guiding, but not limiting. Those skilled in the art can make many forms under the guidance of the present application and without departing from the scope protected by the claims of the present application, which all belong to the protection of the present application.

Claims

1. A method for creating an equal-interval modularized space reflector antenna cell skeleton structure, characterized in that, The method comprises the following steps: An envelope polygon of a center cell of the space reflector antenna cell skeleton is generated, wherein the envelope geometry of the center cell on the projection source plane is projected onto the spherical surface by the projection mode to obtain the envelope polygon of the center cell; An envelope polygon of a high-level cell in a main direction of the space reflector antenna cell skeleton is determined, a boundary line midpoint of the envelope polygon of the high-level cell on the spherical surface is found based on a gap auxiliary circle, the boundary line midpoint is reversely projected onto the projection source plane to serve as a position reference of the envelope geometry of the high-level cell in the main direction, the envelope geometry of the high-level cell in the main direction is determined, and the envelope geometry of the high-level cell on the projection source plane is projected onto the spherical surface by the projection mode to obtain the envelope polygon of the high-level cell in the main direction; wherein the midpoint of the boundary of the envelope polygon of the low-level cell is taken as the center of the circle, the desired gap size of the low-level cell is taken as the diameter, and the circle is drawn on the plane determined by the perpendicular line of the boundary of the envelope polygon of the low-level cell and the center of the spherical surface, and the circle is the gap auxiliary circle; An envelope polygon of a cell in other directions of the space reflector antenna cell skeleton is determined, and the high-level cells are arranged in a circumferential array based on the center point of the center cell to obtain the envelope polygon of the high-level cell in the other directions; Key points of the cell skeleton structure are determined by the vertex of the envelope polygon of the center cell and the geometric center of the vertex on the spherical surface, the key points are extended in the direction from the center of the spherical surface to the key points by a distance of a back frame to obtain new key points, and the space reflector antenna cell skeleton structure is obtained by sequentially connecting the key points.

2. The method of claim 1, wherein the method further comprises: determining a plurality of equal-interval modular space reflector antenna cell skeleton structures; and selecting one of the plurality of equal-interval modular space reflector antenna cell skeleton structures. The size parameter of the center cell is determined by the envelope geometry of the center cell on the projection source plane, the envelope polygon of the center cell is determined by the shape, size parameter and position parameter of the envelope geometry of the center cell, and the envelope geometry on the projection source plane is projected onto the spherical surface, wherein the shape and position parameter of the envelope geometry of the center cell are determined by the desired envelope polygon parameter of the center cell.

3. The method of claim 1, wherein the method further comprises: determining a plurality of equal-interval modular space reflector antenna cell skeleton structures; and selecting one of the plurality of equal-interval modular space reflector antenna cell skeleton structures. The gap auxiliary circle intersects the spherical surface section to generate two intersection points, wherein the midpoint of a certain boundary line of the envelope polygon of the high-level cell in the main direction is outside the boundary of the low-level cell, the midpoint is reversely projected onto the projection source plane, the projection point is the midpoint of a certain side of the envelope geometry of the high-level cell in the main direction, and the position parameter of the envelope geometry of the high-level cell in the main direction is determined based on the midpoint.

4. The method of claim 1, wherein the method further comprises: The envelope geometry parameter of the high-level cell is determined based on the position parameter of the envelope geometry of the high-level cell in the main direction and the envelope geometry of the adjacent cell in the main direction.

5. The method of claim 1, wherein the method further comprises: The envelope geometry of the cell in the other directions is determined by the envelope geometry of two adjacent low-level cells and the geometric center of two adjacent high-level cells.

6. The method of claim 1, wherein the method further comprises: The gap between the cells is adjusted by adjusting the radius of the gap auxiliary circle.

7. An equal-interval modularized space reflector antenna cell skeleton generation system, characterized in that, The method comprises the following steps: An envelope polygon of a center cell of the space reflector antenna cell skeleton is generated, wherein the envelope geometry of the center cell on the projection source plane is projected onto the spherical surface by the projection mode to obtain the envelope polygon of the center cell; The envelope polygon generation unit of the high-level cell in the main direction is used to determine the envelope polygon of the high-level cell in the main direction of the cell skeleton of the space reflector antenna, and the envelope polygon of the high-level cell in the main direction is determined based on the boundary line of the envelope polygon of the central cell in the main direction, the position of the midpoint of the boundary line of the envelope polygon of the high-level cell on the sphere is found based on the gap auxiliary circle, the midpoint of the boundary line is reversely projected onto the projection source plane as the position reference of the envelope geometry of the high-level cell in the main direction, the envelope geometry of the high-level cell in the main direction is projected onto the sphere through the projection mode, and the envelope polygon of the high-level cell in the main direction is obtained; wherein the midpoint of the boundary of the envelope polygon of the low-level cell in the main direction is taken as the center of the circle, the desired gap size of the low-level cell is taken as the diameter, and the circle is drawn on the plane determined by the perpendicular line of the boundary of the envelope polygon of the low-level cell and the center of the sphere, and the circle is the gap auxiliary circle; The cell envelope polygon generation unit in other directions is used to determine the cell envelope polygon in other directions of the cell skeleton of the space reflector antenna, and the high-level cell is arranged in a circular array based on the central point of the central cell to obtain the envelope polygon of the high-level cell in other directions. The cell skeleton generation unit of the space reflector antenna is used to determine the key points of the cell skeleton structure from the vertexes of the envelope polygon of the central cell and the geometric center of the envelope polygon of the central cell on the sphere, extend the key points in the direction from the center of the sphere to the key points by a distance of a back frame to obtain new key points, and sequentially connect the key points to obtain the cell skeleton of the space reflector antenna.

8. A computer storage medium, characterized in that, The storage medium comprises computer instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-6.

9. An electronic device, comprising: The electronic device comprises: a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1-6 when executing the program.

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