Spatial reflector antenna cell skeleton structure, method, system, medium and device

Abstract

The invention discloses an equal-gap modular space reflector antenna cell skeleton structure, a generation method, a system, a medium and equipment, and the method comprises the steps: generating an envelope polygon of a central cell of a space reflector antenna cell skeleton; determining envelope polygons of high-level cells in the main direction of the spatial reflector antenna cell skeleton, establishing cell envelope polygons in other directions of the spatial reflector antenna cell skeleton, and performing circumferential array on the high-level cells by taking the central point of the central cell as a reference to obtain the envelope polygons of the high-level cells in other directions; determining a key point of the cell skeleton structure according to the vertex of the center cell enveloping polygon and the geometric center of the center cell enveloping polygon on the spherical surface, and extending the key point by a distance of a back frame in the direction from the sphere center to the key point to obtain a new key point; and connecting the key points in sequence to obtain the spatial reflector antenna cell skeleton. According to the method, the folding and unfolding requirements of the space reflector antenna are met, and meanwhile, a mounting space is reserved for a self-adaptive adjusting mechanism between the cell elements.

Description

Technical Field

[0001] The present invention relates to the technical field of space reflector antennas, and in particular to an equal-gap modular space reflector antenna cell skeleton structure, method, system, medium and equipment. Background Art

[0002] The space reflector antenna is parabolic in shape and can be fitted with a spherical surface. The overall size of the traditional reflector antenna is relatively small, and only one folding and unfolding mechanism is needed to fold the entire antenna and put it into the fairing of the launch vehicle. With the development of space technology, the requirements for antenna performance are getting higher and higher. On the one hand, the size of the antenna can reach more than 100 meters, and a single folding and unfolding mechanism will not be able to meet the transportation requirements. Therefore, it is necessary to decompose the antenna into multiple small modules and design the folding and unfolding mechanisms separately; on the other hand, the antenna is required to have the ability of adaptive adjustment. A more feasible method is to reserve gaps between each small module for installing the adjustment mechanism, and at the same time, the spacing between each gap should be equal to reduce the workload in the design process of the antenna support truss. This field urgently needs to meet the folding and unfolding requirements of the space reflector antenna while reserving an efficient generation method for the installation space for the adaptive adjustment mechanism between cells.

[0003] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0004] The present invention provides an equal-gap modular space reflector antenna cell skeleton structure, generation method, system, medium and equipment, which meet the folding and unfolding requirements of the space reflector antenna while reserving installation space for an adaptive adjustment mechanism between cells.

[0005] A method for generating a cellular skeleton structure of an equi-gap modular space reflector antenna comprises: Generate an envelope polygon of a central cell of a cell skeleton of a space reflector antenna, wherein the envelope geometric shape of the central cell on a projection source plane is projected onto a spherical surface to obtain an envelope polygon of the central cell; Establishing the envelope polygon of the high-level cell in the main direction of the cell skeleton of the space reflection surface antenna, taking the boundary line of the envelope polygon of the central cell in the main direction as the basis, finding the midpoint position of the boundary line of the high-level cell envelope polygon 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 high-level cell envelope geometry in the main direction, so as to establish the envelope geometry of the high-level cell in the main direction, projecting the envelope geometry of the high-level cell on the projection source plane onto the spherical surface by projection, and obtaining the envelope polygon of the high-level cell in the main direction; Establishing the cell envelope polygons in other directions of the cell skeleton of the space reflection surface antenna, performing a circular array of the advanced cells based on the center point of the central cell, and obtaining the envelope polygons of the advanced cells in other directions; The key points of the cell skeleton structure are determined by the vertices of the central cell envelope polygon and its geometric center on the sphere. The key points are extended from the center of the sphere to the direction of the sphere itself by a distance of the back frame to obtain new key points. The key points are connected in sequence to obtain the cell skeleton structure of the space reflection surface antenna.

[0006] In the method for generating an equal-gap modular space reflector antenna cell skeleton structure, the size parameters of the center cell are 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 parameters, and position parameters of the envelope geometry of the center cell, and is obtained by projecting the envelope geometry on the projection source plane onto a spherical surface, wherein the shape and position parameters of the envelope geometry of the center cell are determined by the desired center cell envelope polygon parameters.

[0007] In the method for generating a cellular skeleton structure of an equal-gap modular space reflector antenna, a circle is drawn on a plane determined by the perpendicular bisector of the boundary of the low-level cell envelope polygon and the center of the sphere, with the boundary midpoint of the low-level cell envelope polygon in the main direction as the center of the circle and the desired low-level cell gap size as the diameter. The circle is a gap auxiliary circle, and the gap auxiliary circle and the spherical cross section intercepted by the plane produce two intersection points, wherein the point outside the low-level cell boundary is the midpoint of a boundary line of the high-level cell envelope polygon in the main direction, and the midpoint is reversely projected onto the projection source plane. The projection point is the midpoint of a certain side of the high-level cell envelope geometric shape in the main direction. Taking this point as a reference, the position parameters of the high-level cell envelope geometric shape in the main direction are determined.

[0008] In the method for generating a cellular skeleton structure of an equi-gap modular space reflector antenna, the boundary line of the high-level cellular envelope polygon in the main direction is used as a basis to determine the envelope geometric shape parameters of the high-level cellular.

[0009] In the method for generating a cell skeleton structure of an equal-gap modular space reflector antenna, the cell envelope geometry in other directions is determined by the envelope geometry of two adjacent lower-level cells and the geometric centers of two adjacent same-level cells.

[0010] In the method for generating a cell skeleton structure of an equal-gap modular space reflector antenna, the cell gap is adjusted by adjusting the radius of the gap auxiliary circle.

[0011] An equal-gap modular space reflector antenna cell skeleton structure is generated via the generation method.

[0012] A cell skeleton generation system for an equal-gap modular space reflector antenna includes: The central cell envelope polygon generating unit is used to generate the envelope polygon of the central cell of the space reflection surface antenna cell skeleton, wherein the envelope geometric shape of the central cell on the projection source plane is projected onto the spherical surface to obtain the envelope polygon of the central cell; The envelope polygon generation unit of the high-level cell in the main direction is used to establish the envelope polygon of the high-level cell in the main direction of the cell skeleton of the space reflection surface antenna, based on the boundary line of the envelope polygon of the central cell in the main direction, find the midpoint position of the boundary line of the high-level cell envelope polygon on the spherical surface based on the gap auxiliary circle, reversely project the midpoint position of the boundary line onto the projection source plane as the position reference of the high-level cell envelope geometry in the main direction, so as to establish the envelope geometry of the high-level cell in the main direction, and project the envelope geometry of the high-level cell on the projection source plane onto the spherical surface by projection to obtain the envelope polygon of the high-level cell in the main direction; A cell envelope polygon generating unit in other directions is used to establish cell envelope polygons in other directions of the cell skeleton of the space reflection surface antenna, and circularly array the high-level cells based on the center point of the center cell to obtain the envelope polygons of the high-level cells in other directions; The space reflection surface antenna cell skeleton generation unit is used to determine the key points of the cell skeleton structure from the vertices of the central cell envelope polygon and its geometric center on the sphere, extend the key points along the direction from the center of the sphere to itself by a back frame distance to obtain new key points; connect the key points in sequence to obtain the space reflection surface antenna cell skeleton.

[0013] A computer storage medium includes computer instructions, which, when executed on a computer, cause the computer to execute the method described.

[0014] An electronic device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the method described is implemented.

[0015] Compared with the prior art, the present invention has the following advantages: based on determining the size of the central cell and the size of the sphere to be fitted, the present invention determines and establishes the cell envelope polygon according to the direction of the cell to be established, and finally uses a hexagon to fit a part of the sphere, and gaps are left between adjacent hexagons and the spacing between the gaps is equal, while meeting the folding and expansion requirements of the modular antenna cell and the installation requirements of the adaptive structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the preferred specific embodiments below, various other advantages and benefits of the present invention will become clear to those of ordinary skill in the art. The drawings in the specification are only for the purpose of illustrating the preferred embodiments and are not considered to be limitations of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work. Moreover, the same reference numerals are used to represent the same components throughout the drawings.

[0017] In the attached picture: Figure 1 It is a schematic diagram of the process of the present invention; Figure 2 A schematic diagram of some of the naming of the present invention; Figure 3 A schematic diagram of some of the naming of the present invention; Figure 4 A schematic diagram for generating the central cell envelope polygon of the present invention; Figure 5 A schematic diagram of generating the gap auxiliary circle of the present invention; Figure 6 A schematic diagram of generating a complete gap auxiliary circle according to the present invention; Figure 7 A schematic diagram for generating midpoints of boundary lines of advanced envelope geometric shapes in the main direction of the present invention; Figure 8 Generate a schematic diagram for the advanced envelope geometry in the main direction of the present invention; Fig. 9 A schematic diagram for generating a high-level envelope polygon in the main direction of the present invention; Fig.10 Generate a schematic diagram for the circumferential high-level envelope geometry in the main direction of the present invention; Fig.11 A schematic diagram of generating a high-level envelope polygon in the main direction under general circumstances of the present invention; Fig.12 Generate schematic diagrams for the center points of advanced envelope geometry in other directions of the present invention; Fig.13 Generate schematic diagrams for advanced envelope geometries in other directions of the present invention; Fig.14 A schematic diagram for generating advanced envelope polygons in other directions of the present invention; Fig.15 A schematic diagram for generating a circumferential advanced envelope polygon in other directions of the present invention; Fig.16 This is the final effect diagram of the present invention; Fig.17 This is the final effect diagram of the present invention.

[0018] The present invention is further explained below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the specific embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0020] It should be noted that certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that technicians may use different nouns to refer to the same component. This specification and claims do not use the difference in nouns as a way to distinguish components, but use the difference in the functions of the components as the criterion for distinction. As mentioned throughout the specification and claims, "including" or "comprising" is an open term, so it should be interpreted as "including but not limited to". The subsequent description of the specification is a preferred embodiment of the present invention, but the description is based on the general principles of the specification and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the attached claims.

[0021] To facilitate understanding of the embodiments of the present invention, further explanation will be given below by taking specific embodiments as examples in conjunction with the accompanying drawings, and each of the accompanying drawings does not constitute a limitation on the embodiments of the present invention.

[0022] like Figures 1 to 17 As shown, the method for generating the skeleton structure of the cell of the equal-gap modular space reflector antenna includes the following steps: Generate an envelope polygon of a central cell of a cell skeleton of a space reflection surface antenna, wherein the projection method projects the envelope geometry of the central cell on a projection source plane onto a spherical surface to obtain an envelope polygon of the central cell; for example, high-level cells and low-level cells refer to relatively high or low levels, and there is no absolute level division, the central cell is the lowest level cell, and they increase from the inside to the outside.

[0023] Establishing the envelope polygon of the high-level cell in the main direction of the cell skeleton of the space reflection surface antenna, taking the boundary line of the envelope polygon of the central cell in the main direction as the basis, finding the midpoint position of the boundary line of the high-level cell envelope polygon 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 high-level cell envelope geometry in the main direction, so as to establish the envelope geometry of the high-level cell in the main direction, projecting the envelope geometry of the high-level cell on the projection source plane onto the spherical surface by projection, and obtaining the envelope polygon of the high-level cell in the main direction; Establishing the cell envelope polygons in other directions of the cell skeleton of the space reflection surface antenna, performing a circular array of the advanced cells based on the center point of the central cell, and obtaining the envelope polygons of the advanced cells in other directions; The key points of the cell skeleton structure are determined by the vertices of the central cell envelope polygon and its geometric center on the sphere. The key points are extended from the center of the sphere to the direction of the sphere itself by a distance of the back frame to obtain new key points. The key points are connected in sequence to obtain the cell skeleton structure of the space reflection surface antenna.

[0024] In a preferred embodiment of the method for generating a skeleton structure of a cell of an equi-gap modular space reflector antenna, the size parameters of the center cell are determined by the envelope geometry of the center cell on the projection source plane, and the envelope polygon of the center cell is determined by the shape, size parameters, and position parameters of the envelope geometry of the center cell, and is obtained by projecting the envelope geometry on the projection source plane onto a spherical surface, wherein the shape and position parameters of the envelope geometry of the center cell are determined by the desired center cell envelope polygon parameters. 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 YZ reference plane.

[0025] In a preferred implementation of the method for generating a cell skeleton structure of an equal-gap modular space reflector antenna, a circle is drawn on a plane determined by the perpendicular bisector of the boundary of the low-level cell envelope polygon and the center of the sphere, with the boundary midpoint of the low-level cell envelope polygon in the main direction as the center of the circle and the desired low-level cell gap size as the diameter. The circle is an auxiliary gap circle, and the auxiliary gap circle and the spherical cross section intercepted by the plane produce two intersection points, wherein the point outside the boundary of the low-level cell is the midpoint of a boundary line of the high-level cell envelope polygon in the main direction, and the midpoint is reversely projected onto the projection source plane, and the projection point is the midpoint of a side of the high-level cell envelope geometric shape in the main direction. Taking this point as a reference, the position parameters of the high-level cell envelope geometric shape in the main direction are determined.

[0026] In a preferred implementation of the method for generating a skeleton structure of a cell of an equi-gap modular space reflector antenna, the boundary line of the high-level cell envelope polygon in the main direction is used as a basis for determining the envelope geometric shape parameters of the high-level cell.

[0027] In a preferred implementation of the method for generating a cell skeleton structure of an equal-gap modular space reflector antenna, the cell envelope geometry in other directions is determined by the envelope geometry of two adjacent lower-level cells and the geometric centers of two adjacent same-level cells.

[0028] In a preferred implementation of the method for generating a cell skeleton structure of an equal-gap modular space reflector antenna, the cell gap is adjusted by adjusting the radius of the gap auxiliary circle.

[0029] An equal-gap modular space reflector antenna cell skeleton structure is generated via the generation method.

[0030] A cell skeleton generation system for an equal-gap modular space reflector antenna includes: The central cell envelope polygon generating unit is used to generate the envelope polygon of the central cell of the space reflection surface antenna cell skeleton, wherein the envelope geometric shape of the central cell on the projection source plane is projected onto the spherical surface to obtain the envelope polygon of the central cell; The envelope polygon generation unit of the high-level cell in the main direction is used to establish the envelope polygon of the high-level cell in the main direction of the cell skeleton of the space reflection surface antenna, based on the boundary line of the envelope polygon of the central cell in the main direction, find the midpoint position of the boundary line of the high-level cell envelope polygon on the spherical surface based on the gap auxiliary circle, reversely project the midpoint position of the boundary line onto the projection source plane as the position reference of the high-level cell envelope geometry in the main direction, so as to establish the envelope geometry of the high-level cell in the main direction, and project the envelope geometry of the high-level cell on the projection source plane onto the spherical surface by projection to obtain the envelope polygon of the high-level cell in the main direction; A cell envelope polygon generating unit in other directions is used to establish cell envelope polygons in other directions of the cell skeleton of the space reflection surface antenna, and circularly array the high-level cells based on the center point of the center cell to obtain the envelope polygons of the high-level cells in other directions; The space reflection surface antenna cell skeleton generation unit is used to determine the key points of the cell skeleton structure from the vertices of the central cell envelope polygon and its geometric center on the sphere, extend the key points along the direction from the center of the sphere to itself by a back frame distance to obtain new key points; connect the key points in sequence to obtain the space reflection surface antenna cell skeleton.

[0031] A computer storage medium includes computer instructions, which, when executed on a computer, cause the computer to execute the method described.

[0032] An electronic device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the method described is implemented.

[0033] In one embodiment, a method for generating a skeleton structure of an antenna cell of an equal-gap modular space reflector includes generating a central cell envelope polygon, generating a high-level antenna cell envelope polygon in a main direction, generating high-level antenna cell envelope polygons in other directions, generating an antenna cell skeleton structure, and designing an antenna cell gap. The method for designing a skeleton structure of an antenna cell of an equal-gap modular space reflector includes projecting the envelope geometry of the central cell on a projection plane onto a spherical surface to obtain an envelope polygon of the central cell, and then designing a gap auxiliary circle based on the boundary line of the central cell envelope polygon in the main direction to find the midpoint position of the boundary line of a high-level antenna cell envelope polygon on the spherical surface, and reversely projecting the midpoint onto the projection plane as a position reference of the high-level cell envelope geometry in the main direction, thereby establishing the envelope geometry of the high-level cell in the main direction. The envelope geometry of the advanced cell on the projection plane is projected onto the sphere again to obtain the envelope polygon of the advanced cell in the main direction, and then the advanced cell is arrayed in a circular pattern based on the center point of the central cell to obtain the envelope polygon of the advanced cell in other ranges. The process of designing the gap auxiliary circle-reverse projection-envelope geometry establishment-projection-circular array is repeated to establish the envelope polygon of the advanced antenna cell in the main direction and other ranges.

[0034] When establishing the cell envelope polygon in other directions, the geometric center of the high-level antenna cell envelope geometry in other directions is established with the adjacent boundary line of the low-level cell envelope geometry of the cell to be established on the projection plane as the position reference, and the envelope geometry of the high-level antenna cell in other directions is established with the geometric center and the center of the envelope geometry of the adjacent same-level cell of the cell to be established as the reference, and the process of projection-circular array is repeated to obtain the envelope polygon of the secondary antenna cell support truss in other directions. The envelope polygon of the high-level antenna cell in other directions can be established by repeating the process of determining the position reference-determining the geometric center-establishing the envelope geometry-projection-circular array.

[0035] By analogy, the envelope polygon of the advanced antenna cell in the main direction can be established by repeating the process of: designing gap auxiliary circle - determining position reference - reverse projection - establishing envelope geometry - projection - circular array; the envelope polygon of the advanced antenna cell in other directions can be established by repeating the process of determining position reference - determining geometric center - establishing envelope geometry - projection - circular array.

[0036] By analogy, the envelope polygon of the advanced antenna cell in the main direction can be established by repeating the process of: designing gap auxiliary circle - determining position reference - reverse projection - establishing envelope geometry - projection - circular array; the envelope polygon of the advanced antenna cell in other directions can be established by repeating the process of determining position reference - determining geometric center - establishing envelope geometry - projection - circular array.

[0037] Process: Design gap auxiliary circle - determine position reference - reverse projection - establish envelope geometry - projection - circular array and the modeling steps shown have the following corresponding relationship: Design gap auxiliary circle: When establishing the envelope polygon of the high-level cell in the main direction, its position parameters need to be determined. With the midpoint of the boundary of the low-level cell envelope polygon in the main direction as the center of the circle and the desired low-level cell gap size as the diameter, draw a circle on the plane determined by the perpendicular line of the boundary of the low-level cell envelope polygon and the center of the sphere. This circle is the gap auxiliary circle.

[0038] Determine the position reference - reverse projection: The gap auxiliary circle and the spherical section intercepted by the plane generate two intersection points, where the point outside the boundary of the low-level cell is the midpoint of a boundary line of the high-level cell envelope polygon in the main direction, and this midpoint is the initial position reference. The midpoint is reversely projected onto the projection source plane, and the projection point is the midpoint of a side of the high-level cell envelope geometry in the main direction, which is the position reference for determining the high-level cell envelope geometry in the main direction.

[0039] Envelope geometry is established: Once the position reference of the high-level cell envelope geometry in the main direction is determined, the position parameters of the envelope geometry can be determined. At this point, the high-level cell envelope geometry in the main direction is completely determined.

[0040] Projection: Project the fully determined high-level cell envelope geometry in the main direction onto the sphere to obtain the high-level cell envelope polygon in the main direction.

[0041] Circular array: By taking the central cell as the reference, the high-level cell envelope polygon in the main direction is arrayed in a circular manner to obtain the corresponding high-level cell envelope polygon on its module.

[0042] The process: determine the position reference - determine the geometric center - establish the envelope geometry - project - the circular array has the following corresponding relationship with the modeling steps shown: Determine the position reference: Find two lower-level cells adjacent to the cell to be established and two same-level cells adjacent to the cell to be established. The perpendicular lines of the adjacent sides of the two lower-level cells are drawn, and the perpendicular bisector of the perpendicular lines is drawn. The lines connecting the two same-level cells intersect at one point, which is the center point of the cell to be established and serves as the position reference of the cell to be established.

[0043] Establishment of envelope geometry: Based on the position reference in the previous step, the envelope geometry of the adjacent cells is added as the position reference, so that the envelope geometry of the cell to be established can be completely determined.

[0044] Projection: Project the fully determined envelope geometry of the cell to be established onto the spherical surface to obtain the envelope polygon of the cell to be established.

[0045] Circular array: Array the cell envelope polygon created in the previous step in a circular manner based on the central cell, and you can get the corresponding cell envelope polygon on its module.

[0046] In one embodiment, see Figures 4 to 10 , shows a specific implementation method for establishing high-level cells along the main direction, including the following steps: S1: Figure 4 As shown, 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 center of the sphere as the center as the envelope geometry of the central cell. The normal vector pointing to the center of the sphere along the projection source plane is the projection direction, and the envelope geometry of the central cell is projected onto the spherical surface to obtain the envelope polygon of the central cell. Since the envelope geometry of the central cell is a regular hexagon and the sphere has the property of central symmetry, the final set of all cell envelope polygons has the same central symmetry property as the regular hexagon. Therefore, when modeling, it is only necessary to establish the cell envelope polygon within the 60° angle range with the geometric center of the central cell as the vertex. Envelope polygons within other ranges can be obtained by a circular array of 6 with the geometric center of the central cell envelope polygon as the center.

[0047] S2: Figure 5 As shown, take the midpoint of one edge of the central cell envelope polygon, and the direction from the central cell envelope polygon to the midpoint is the main direction. Take the center of the sphere as the center of the circle, and the radius of the sphere as the radius of the circle. Draw circle 1 on the plane formed by the main direction and the center of the sphere. Obviously, circle 1 is on the sphere.

[0048] S3: Figure 6 to Figure 7 As shown in the figure, the midpoint determined in the previous step is the center of the circle, the expected gap distance is the radius, and circle 2 is drawn on the plane where circle 1 is located. The intersection of the two circles outside the cell boundary is the midpoint of a boundary line of the high-level cell envelope polygon in the main direction. The midpoint is reversely projected onto the projection source plane, and the projection point is the midpoint of a boundary line of the high-level cell envelope geometric shape in the main direction.

[0049] S4: Figures 8 to 9 As shown, 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.

[0050] S5: Fig.10 As shown, the new envelope polygon obtained in the previous step is arrayed in a circular pattern to obtain the cell envelope polygons within other ranges.

[0051] like Fig.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.

[0052] 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): S1: Fig.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.

[0053] S2: Figure 12 to Figure 13 As shown, draw a perpendicular line between the adjacent sides of cell 1 and cell 2, and draw the perpendicular bisector of the perpendicular line, which intersects the line connecting cell 3 and cell 4 at a point. This point is the center point of the cell to be established. With this point and the adjacent cells as the position reference, establish a regular hexagon as the envelope geometry of the cell to be established.

[0054] S3: Fig.14 As shown, the envelope geometry of the new cell is projected onto the sphere to obtain the envelope polygons of the higher-level cells in other directions.

[0055] S4: Fig.15 As shown, the new envelope polygon obtained in the previous step is arrayed in a circular pattern to obtain the cell envelope polygons within other ranges.

[0056] like Figure 16 to Figure 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: 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 point and the vertices serve as the key points of the cell skeleton structure.

[0057] S2: Extend the key point along the direction from the center of the ball to itself by a distance of the back frame to obtain a new key point.

[0058] S3: Connect the key points in a certain order to obtain the skeleton structure of the cell.

[0059] S4: Perform the above operations on all cells to obtain the skeleton structure of all cells.

[0060] In summary, the design method of the truss skeleton structure supporting the equal-gap modular space reflector antenna determines the size of the central cell and the size of the sphere to be fitted, determines the direction of the cell to be established and establishes the cell envelope polygon, and finally uses hexagons to fit part of the sphere, and leaves gaps between adjacent hexagons and the spacing between gaps is equal, which meets the folding and expansion requirements of the modular antenna cell and the installation requirements of the adaptive structure.

[0061] Although the embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention is not limited to the above specific embodiments and application fields, and the above specific embodiments are only illustrative and instructive, rather than restrictive. A person of ordinary skill in the art can also make many forms under the guidance of this specification and without departing from the scope of protection of the claims of the present invention, all of which belong to the protection of the present invention.

Claims

1. A method for generating a cell skeleton structure of an equal-gap modular space reflector antenna, characterized in that: The steps include: Generate an envelope polygon of a central cell of a cell skeleton of a space reflector antenna, wherein the envelope geometric shape of the central cell on a projection source plane is projected onto a spherical surface to obtain an envelope polygon of the central cell; Establishing the envelope polygon of the high-level cell in the main direction of the cell skeleton of the space reflection surface antenna, taking the boundary line of the envelope polygon of the central cell in the main direction as the basis, finding the midpoint position of the boundary line of the high-level cell envelope polygon 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 high-level cell envelope geometry in the main direction, so as to establish the envelope geometry of the high-level cell in the main direction, projecting the envelope geometry of the high-level cell on the projection source plane onto the spherical surface by projection, and obtaining the envelope polygon of the high-level cell in the main direction; Establishing the cell envelope polygons in other directions of the cell skeleton of the space reflection surface antenna, performing a circular array of the advanced cells based on the center point of the central cell, and obtaining the envelope polygons of the advanced cells in other directions; The key points of the cell skeleton structure are determined by the vertices of the central cell envelope polygon and its geometric center on the sphere. The key points are extended from the center of the sphere to the direction of the sphere itself by a distance of the back frame to obtain new key points. The key points are connected in sequence to obtain the cell skeleton structure of the space reflection surface antenna.

2. The method for generating a cell skeleton structure of an equal-gap modular space reflector antenna according to claim 1, characterized in that: Preferably, the size parameters of the center cell are determined by the envelope geometry of the center cell on the projection source plane, and the envelope polygon of the center cell is determined by the shape, size parameters and position parameters of the envelope geometry of the center cell, and is obtained by projecting the envelope geometry on the projection source plane onto a spherical surface, wherein the shape and position parameters of the envelope geometry of the center cell are determined by the desired center cell envelope polygon parameters.

3. The method for generating a cell skeleton structure of an equal-gap modular space reflector antenna according to claim 1, characterized in that: With the boundary midpoint of the low-level cell envelope polygon in the main direction as the center of the circle and the desired low-level cell gap size as the diameter, a circle is drawn on the plane determined by the perpendicular bisector of the boundary of the low-level cell envelope polygon and the center of the sphere. The circle is the gap auxiliary circle. The gap auxiliary circle and the spherical cross section intercepted by the plane produce two intersection points, where the point outside the low-level cell boundary is the midpoint of a boundary line of the high-level cell envelope polygon in the main direction. The midpoint is reversely projected onto the projection source plane. The projection point is the midpoint of a side of the high-level cell envelope geometric shape in the main direction. Taking this point as the reference, the position parameters of the high-level cell envelope geometric shape in the main direction are determined.

4. The method for generating a cell skeleton structure of an equal-gap modular space reflector antenna according to claim 1, characterized in that: The envelope geometry parameters of the higher-level cell are determined based on the position parameters of the envelope geometry of the higher-level cell in the main direction and the envelope geometry of the adjacent cells in the main direction.

5. The method for generating a cell skeleton structure of an equal-gap modular space reflector antenna according to claim 1, characterized in that: The cell envelope geometry in other directions is determined by the envelope geometry of the two adjacent lower-level cells and the geometric centers of the two adjacent same-level cells.

6. The method for generating a cell skeleton structure of an equal-gap modular space reflector antenna according to claim 1, characterized in that: The cell gap is adjusted by adjusting the radius of the gap auxiliary circle.

7. An equal-gap modular space reflector antenna cell skeleton structure, characterized in that: It is generated via the generation method according to any one of claims 1 to 6.

8. A system for generating a cell skeleton of an equal-gap modular space reflector antenna, characterized in that: These include, The central cell envelope polygon generating unit is used to generate the envelope polygon of the central cell of the space reflection surface antenna cell skeleton, wherein the envelope geometric shape of the central cell on the projection source plane is projected onto the spherical surface to obtain the envelope polygon of the central cell; The envelope polygon generation unit of the high-level cell in the main direction is used to establish the envelope polygon of the high-level cell in the main direction of the cell skeleton of the space reflection surface antenna, based on the boundary line of the envelope polygon of the central cell in the main direction, find the midpoint position of the boundary line of the high-level cell envelope polygon on the spherical surface based on the gap auxiliary circle, reversely project the midpoint position of the boundary line onto the projection source plane as the position reference of the high-level cell envelope geometry in the main direction, so as to establish the envelope geometry of the high-level cell in the main direction, and project the envelope geometry of the high-level cell on the projection source plane onto the spherical surface by projection to obtain the envelope polygon of the high-level cell in the main direction; A cell envelope polygon generating unit in other directions is used to establish cell envelope polygons in other directions of the cell skeleton of the space reflection surface antenna, and circularly array the high-level cells based on the center point of the center cell to obtain the envelope polygons of the high-level cells in other directions; The space reflection surface antenna cell skeleton generation unit is used to determine the key points of the cell skeleton structure from the vertices of the central cell envelope polygon and its geometric center on the sphere, extend the key points along the direction from the center of the sphere to itself by a back frame distance to obtain new key points; connect the key points in sequence to obtain the space reflection surface antenna cell skeleton.

9. A computer storage medium, characterized in that: The storage medium includes computer instructions, which, when executed on a computer, enable the computer to execute the method according to any one of claims 1 to 6.

10. An electronic device, characterized in that: The electronic device comprises: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the method according to any one of claims 1 to 6 is implemented.

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