Dual-path multi-satellite simulation device

Abstract

The utility model relates to astronomical observation equipment technical field provides a kind of double-path multi-star simulation equipment, including box, the side of the box is detachably provided with lens assembly, first star path subassembly and second star path subassembly are provided in the box;The first star path subassembly is along the axis direction of lens assembly and is set, the beam direction of the first star path subassembly is parallel with the axis of lens assembly, the box is provided with optical splitter, and the optical splitter is located between lens assembly and first star path subassembly;Second star path subassembly is set to one side of optical splitter, the beam direction of the second star path subassembly is located in the same plane with the beam direction of first star path subassembly and is perpendicular to each other, the utility model can realize high-precision simulation adjustment, realize the flexible switching of scene, to significantly improve the authenticity and test efficiency of starry sky simulation.

Description

Technical Field

[0001] This utility model relates to the field of astronomical observation equipment technology, and more specifically, to a dual-path multi-star simulation device. Background Technology

[0002] The content in this section only provides background information related to this utility model and may not constitute prior art.

[0003] The multi-star simulation device is a ground-based testing facility for astronomical observation equipment. Its main function is to simulate the real starry sky environment, including star distribution and background sky area, to verify the target extraction, star identification and astronomical positioning performance of the optical system. This device is widely used in scenarios such as spacecraft attitude determination, astronomical telescope calibration and optical tracking system testing, providing a reliable ground verification method for the research and development and acceptance of high-precision astronomical observation equipment.

[0004] Existing multi-star simulators mostly adopt a single optical path structure, typically consisting of a fixed star point plate, a single light source such as a halogen lamp, and a simple support structure. In actual use, the star point plate is illuminated by the light source, and the micro-holes or clusters on the star point plate project simulated star points to form an artificial star sky image, which is then received and processed by the optical system under test, thus basically realizing the simulated kinetic energy of the star sky.

[0005] However, the above-mentioned technologies have the following drawbacks. In actual use, because the star point plate is fixed and cannot be adjusted, it is difficult to achieve accurate focusing and position calibration of the star points, which severely limits the simulation accuracy and flexibility, affects the accuracy of test results, and results in low efficiency of simulation scene switching, making it difficult to adapt to the needs of multi-task testing. Utility Model Content

[0006] To address the aforementioned technical problems, the purpose of this utility model is to provide a dual-channel multi-satellite simulation device that can achieve high-precision simulation adjustment and flexible scene switching, thereby significantly improving the realism of star simulation and testing efficiency.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A dual-path multi-satellite simulation device includes a housing. A lens assembly is detachably mounted on one side of the housing. A first star path assembly and a second star path assembly are disposed inside the housing. The first star path assembly is arranged along the axial direction of the lens assembly, and the beam direction of the first star path assembly is parallel to the axial direction of the lens assembly. A beam splitter is disposed inside the housing, located between the lens assembly and the first star path assembly. The second star path assembly is disposed on one side of the beam splitter, and the beam direction of the second star path assembly is in the same plane and perpendicular to the beam direction of the first star path assembly.

[0009] In some possible embodiments, the first star path assembly includes a first mounting base, a sliding base, a first light source, and a first mounting frame; the first mounting base is disposed inside a housing, the sliding base is disposed on the first mounting base, the first light source is disposed on the sliding base, the first mounting frame is disposed on the sliding base, the first mounting frame is disposed between the first light source and the beam splitter, a first star point plate is disposed on the first mounting frame, and a first fixing member is disposed on the first mounting frame, the first fixing member being used to define the position of the first star point plate on the first mounting frame.

[0010] In some possible embodiments, the sliding base is provided with a first sliding stage, the bottom of the first sliding stage is slidably disposed on the sliding base along the axial direction of the lens assembly, the sliding end of the first sliding stage is fixedly connected to the bottom of the first mounting frame, and the sliding direction of the sliding end of the first sliding stage is parallel to the sliding direction of the bottom of the first sliding stage.

[0011] In some possible embodiments, the first fixing member is configured as a first fixing frame, the first mounting frame having a first mounting groove on the side near the beam splitter, the first star plate being movably embedded in the first mounting groove, the first fixing groove being connected to the first mounting groove on the side of the first mounting frame near the beam splitter, the first fixing member being movably embedded in the first fixing groove, the side of the first fixing member away from the beam splitter being used to abut against the first star plate, and the first fixing member being mounted on the first mounting frame by bolts.

[0012] In some possible embodiments, the second star path assembly includes a second mounting base, a second light source, and a second mounting frame; the second mounting base is disposed inside the housing, the second light source is disposed on the inner side wall of the housing, the second mounting frame is disposed on the second mounting base, the second mounting frame is located between the second light source and the beam splitter, a second star point plate is disposed on the second mounting frame, and the second star point plate is detachably connected to the second mounting frame.

[0013] In some possible embodiments, a second sliding stage is provided on the second mounting base, the bottom of the second sliding stage is fixedly mounted on the top of the second mounting base, the sliding end of the second sliding stage is fixedly connected to the bottom of the second mounting frame, and the sliding direction of the sliding end of the second sliding stage is parallel to the beam direction of the second star path assembly.

[0014] In some possible embodiments, the bottom of the second mounting frame is provided with a connecting part, the connecting part is fixedly connected to the top of the second sliding stage, the top of the connecting part is provided with an abutting part, the top of the second mounting frame is provided with an insertion hole, the mounting part is slidably disposed in the insertion hole along the vertical direction, and the second star plate is disposed on the mounting part.

[0015] In some possible embodiments, the mounting part has a second mounting groove on the side near the second light source, the second star plate is disposed in the second mounting groove, and the mounting part is provided with a second fixing member, which is used to limit the position of the second star plate in the second mounting groove.

[0016] In some possible embodiments, the second fixing member is configured as a second fixing frame, the second fixing member is snapped into the second mounting groove, one side of the second fixing member is used to abut against the second star point plate, a fixing ear is fixedly provided on the second fixing member, and a second fixing groove is opened on the mounting part for the fixing ear to be snapped into, and the fixing ear is fixedly installed in the second fixing groove by bolts.

[0017] In some possible embodiments, a through hole is provided on the top of the housing, located above the insertion hole, for the mounting part to pass through. A sealing plate is provided on the top of the housing to close the through hole, and the sealing plate is detachably mounted on the top of the housing by bolts.

[0018] In summary, the technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0019] 1. The optical path is divided into a first star path and a second star path by a beam splitter. The two star paths are located on the same plane and are perpendicular to each other, which can simultaneously simulate target stars and background stars, realizing dual-path parallel output. Compared with the traditional single-path simulator, there is no need to change equipment or reconfigure the optical path when simulating star paths, which can complete multi-scenario tests, greatly improving the testing efficiency. At the same time, dual-path simulation is closer to the actual star observation conditions, improving the authenticity and reliability of the test, and is suitable for the comprehensive performance verification of high-precision astronomical positioning systems.

[0020] 2. The first star path assembly is equipped with a sliding base and a first sliding stage, which can move the first star plate along the optical axis to achieve fine adjustment and focusing of the star position. The second star path assembly is also equipped with a second sliding stage, which allows the second star plate to be translated along the beam direction. This overcomes the defect that the traditional fixed star plate cannot be adjusted, significantly improves the simulation accuracy, and is suitable for testing optical systems with different focal lengths and imaging requirements, enhancing the practicality and debugging flexibility of the equipment.

[0021] 3. The first star dot plate is detachably installed via the first mounting slot and the first fixing component, and the second star dot plate is installed by snapping the mounting part with the second fixing frame. Both are detachably and quickly installed by bolt tightening. Users can quickly replace star dot plates with different patterns or densities according to testing needs, adapting to various simulation scenarios, significantly improving the reusability of the equipment and the efficiency of task switching, and overcoming the problem of limited functionality caused by the non-replaceable star dot plates in traditional equipment.

[0022] 4. The top of the enclosure is equipped with a through hole and a sealing plate, which facilitates the direct placement and removal of the second star point plate from the outside of the enclosure. This operation is convenient and does not affect the optical path sealing, ensuring the stability of the optical path and mechanical reliability. It is suitable for long-term, high-frequency testing tasks. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the box in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the first star path component according to an embodiment of the present utility model;

[0026] Figure 4 for Figure 3 Enlarged view of part A in the image;

[0027] Figure 5 This is a schematic diagram of the structure of the second star path component according to an embodiment of the present utility model;

[0028] Figure 6 This is an exploded structural diagram of the mounting section according to an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the through hole and sealing plate in an embodiment of the present utility model.

[0030] Icons: 1. Housing; 11. Beam splitter; 2. Lens assembly; 21. Lens mounting tube; 22. Lens lens; 3. First star path assembly; 31. First mounting base; 32. Sliding base; 33. First light source; 34. First mounting frame; 35. First star point plate; 36. First fixing component; 37. First sliding stage; 38. First mounting groove; 39. First fixing groove; 4. Second star path assembly; 41. Second mounting base; 42. Second light source; 43. Second mounting frame; 44. Second star point plate; 5. Second sliding stage; 6. Connecting part; 61. Abutting part; 7. Insertion hole; 71. Mounting part; 72. Second mounting groove; 73. Second fixing component; 74. Fixing ear; 75. Second fixing groove; 8. Through hole; 81. Sealing plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] The following is for reference Figures 1 to 7 The present invention will be described in further detail below.

[0033] Reference Figure 1 and Figure 2 A dual-path multi-satellite simulation device includes a housing 1, a lens assembly 2 detachably mounted on one side of the housing 1, and a first satellite path assembly 3 and a second satellite path assembly 4 mounted inside the housing 1.

[0034] As one embodiment of this utility model, refer to Figure 2 Lens assembly 2 includes a lens mounting tube 21 and several lens elements 22, such as Figure 2 As shown, there are three lenses 22. The three lenses 22 are arranged from the outside to the inside along the axis of the lens mounting tube 21 as a double-sided convex lens, a single-sided concave lens and a single-sided convex lens; wherein, the lens mounting tube 21 and the housing 1 can be installed by bolt connection.

[0035] Among them, reference Figure 2 and Figure 3 The first star path component 3 is arranged along the axis of the lens component 2, and the beam direction of the first star path component 3 is parallel to the axis of the lens component 2. A beam splitter 11 is arranged inside the housing 1, and the beam splitter 11 is located between the lens component 2 and the first star path component 3.

[0036] As another possible embodiment of this utility model, the beam splitter 11 can be configured as a beam-splitting prism or a beam-splitting plate. Any device capable of transmitting and refracting light can be used as the beam splitter 11.

[0037] Among them, reference Figure 2 and Figure 5 The second star path component 4 is disposed on one side of the beam splitter 11. The beam direction of the second star path component 4 is on the same plane as the beam direction of the first star path component 3 and is perpendicular to each other.

[0038] Specifically, refer to Figure 3 and Figure 4 As one embodiment of the present invention, the first star path component 3 includes a first mounting base 31, a sliding base 32, a first light source 33, and a first mounting frame 34.

[0039] Reference Figure 3 and Figure 4The first mounting base 31 is disposed inside the housing 1, the sliding base 32 is disposed on the first mounting base 31, the first light source 33 is disposed on the sliding base 32, the first mounting frame 34 is disposed on the sliding base 32, the first mounting frame 34 is disposed between the first light source 33 and the beam splitter 11, the first mounting frame 34 is provided with a first star point plate 35, and the first mounting frame 34 is provided with a first fixing member 36, which is used to limit the position of the first star point plate 35 on the first mounting frame 34.

[0040] Reference Figure 3 A first sliding stage 37 is provided on the sliding seat 32. The bottom of the first sliding stage 37 is slidably disposed on the sliding seat 32 along the axial direction of the lens assembly 2. The sliding end of the first sliding stage 37 is fixedly connected to the bottom of the first mounting frame 34. The sliding direction of the sliding end of the first sliding stage 37 is parallel to the sliding direction of the bottom of the first sliding stage 37.

[0041] Reference Figure 3 and Figure 4 In one embodiment of this utility model, the first fixing member 36 is configured as a first fixing frame, the first mounting frame 34 has a first mounting groove 38 on the side near the beam splitter 11, the first star plate 35 is movably embedded in the first mounting groove 38, the first mounting frame 34 has a first fixing groove 39 on the side near the beam splitter 11, the first fixing groove 39 is connected to the first mounting groove 38, the first fixing member 36 is movably embedded in the first fixing groove 39, the side of the first fixing member 36 away from the beam splitter 11 is used to abut against the first star plate 35, and the first fixing member 36 is installed on the first mounting frame 34 by bolts.

[0042] Reference Figure 5 The second star path component 4 includes a second mounting base 41, a second light source 42, and a second mounting frame 43.

[0043] Reference Figure 2 and Figure 5 The second mounting base 41 is disposed inside the housing 1, the second light source 42 is disposed on the inner side wall of the housing 1, the second mounting frame 43 is disposed on the second mounting base 41, the second mounting frame 43 is located between the second light source 42 and the beam splitter 11, the second mounting frame 43 is provided with a second star point plate 44, and the second star point plate 44 is detachably connected to the second mounting frame 43.

[0044] Reference Figure 5 A second sliding stage 5 is provided on the second mounting base 41. The bottom of the second sliding stage 5 is fixedly installed on the top of the second mounting base 41. The sliding end of the second sliding stage 5 is fixedly connected to the bottom of the second mounting frame 43. The sliding direction of the sliding end of the second sliding stage 5 is parallel to the beam direction of the second star path component 4.

[0045] Reference Figure 5 and Figure 6 The bottom of the second mounting frame 43 is provided with a connecting part 6, which is fixedly connected to the top of the second sliding stage 5. The top of the connecting part 6 is provided with an abutting part 61. The top of the second mounting frame 43 is provided with an insertion hole 7, and the mounting part 71 is slidably disposed in the insertion hole 7 along the vertical direction. The second star plate 44 is disposed on the mounting part 71.

[0046] Reference Figure 6 The mounting part 71 has a second mounting groove 72 on the side near the second light source 42. The second star plate 44 is disposed in the second mounting groove 72. The mounting part 71 is provided with a second fixing member 73, which is used to limit the position of the second star plate 44 in the second mounting groove 72.

[0047] Reference Figure 6 In one embodiment of this utility model, the second fixing member 73 is configured as a second fixing frame. The second fixing member 73 is snapped into the second mounting groove 72. One side of the second fixing member 73 is used to abut against the second star point plate 44. A fixing ear 74 is fixedly provided on the second fixing member 73. A second fixing groove 75 is provided on the mounting part 71 for the fixing ear 74 to be snapped into. The fixing ear 74 is fixedly installed in the second fixing groove 75 by bolts.

[0048] As one possible implementation of this utility model, multiple fixing ears 74 may be provided, and multiple corresponding second fixing slots 75 are also provided at corresponding positions for the fixing ears 74 to be inserted.

[0049] Reference Figure 7 The top of the housing 1 has a through hole 8, located above the insertion hole 7, for the mounting part 71 to pass through. A sealing plate 81 is provided on the top of the housing 1 to seal the through hole 8. The sealing plate 81 is detachably mounted on the top of the housing 1 by bolts. The through hole 8 and sealing plate 81 on the top of the housing 1 facilitate direct access to and removal of the second star point plate 44 from the outside of the housing 1. This convenient operation does not affect the optical path sealing, ensuring optical path stability and mechanical reliability, and is suitable for long-term, high-frequency testing tasks.

[0050] The first star dot plate 35 is detachably installed via the first mounting slot 38 and the first fixing member 36. The second star dot plate 44 is installed by snapping the mounting part 71 with the second fixing frame. Both are detachably and quickly installed by bolt tightening. Users can quickly replace star dot plates with different patterns or densities according to testing needs, adapting to various simulation scenarios. This significantly improves the reusability and task switching efficiency of the equipment and overcomes the problem of limited functionality caused by the non-replaceable star dot plates in traditional equipment.

[0051] As another possible implementation of this utility model, the inner surface of the housing 1 can be treated with a matte finish, which can effectively suppress stray light interference and ensure the clarity and contrast of the simulated image. The first light source 33 and the second light source 42 can be set as LED surface light sources, which have adjustable brightness and better uniformity and longer service life compared with halogen lamps, making them suitable for long-term, high-frequency testing tasks.

[0052] In actual use, the first star path component 3 and the second star path component 4 are each equipped with a corresponding first sliding stage 37 and a second sliding stage 5, which can be used for fine-tuning of the distance, enabling precise adjustment of the distance to the object surface, and also facilitating subsequent maintenance.

[0053] The implementation principle of the dual-channel multi-satellite simulation device proposed in this embodiment is as follows:

[0054] The optical path is divided into a first star path and a second star path by the beam splitter 11. The two star paths are located on the same plane and are perpendicular to each other, which can simultaneously simulate target stars and background stars, realizing dual-path parallel output. Compared with the traditional single-path simulator, when simulating star paths, there is no need to change equipment or reconfigure the optical path to complete multi-scenario tests, which greatly improves the testing efficiency. At the same time, dual-path simulation is closer to the actual star observation conditions, improving the authenticity and reliability of the test, and is suitable for the comprehensive performance verification of high-precision astronomical positioning systems.

[0055] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual-channel multi-satellite analog device, characterized in that: Includes a housing (1), on one side of which a lens assembly (2) is detachably provided, and inside the housing (1) are a first star path assembly (3) and a second star path assembly (4). The first star path component (3) is arranged along the axial direction of the lens assembly (2), and the beam direction of the first star path component (3) is parallel to the axis of the lens assembly (2). A beam splitter (11) is arranged inside the housing (1), and the beam splitter (11) is located between the lens assembly (2) and the first star path component (3). The second star path component (4) is disposed on one side of the beam splitter (11), and the beam direction of the second star path component (4) is on the same plane and perpendicular to the beam direction of the first star path component (3).

2. The dual-channel multi-satellite analog device according to claim 1, characterized in that: The first star path assembly (3) includes a first mounting base (31), a sliding base (32), a first light source (33), and a first mounting frame (34); The first mounting base (31) is disposed inside the housing (1), the sliding base (32) is disposed on the first mounting base (31), the first light source (33) is disposed on the sliding base (32), the first mounting frame (34) is disposed on the sliding base (32), the first mounting frame (34) is disposed between the first light source (33) and the beam splitter (11), the first mounting frame (34) is provided with a first star plate (35), the first mounting frame (34) is provided with a first fixing member (36), the first fixing member (36) is used to limit the position of the first star plate (35) on the first mounting frame (34).

3. The dual-channel multi-satellite simulation device according to claim 2, characterized in that: The sliding seat (32) is provided with a first sliding stage (37). The bottom of the first sliding stage (37) is slidably disposed on the sliding seat (32) along the axial direction of the lens assembly (2). The sliding end of the first sliding stage (37) is fixedly connected to the bottom of the first mounting frame (34). The sliding direction of the sliding end of the first sliding stage (37) is parallel to the sliding direction of the bottom of the first sliding stage (37).

4. The dual-channel multi-satellite simulation device according to claim 2, characterized in that: The first fixing member (36) is configured as a first fixing frame. The first mounting frame (34) has a first mounting groove (38) on the side near the beam splitter (11). The first star plate (35) is movably embedded in the first mounting groove (38). The first mounting frame (34) has a first fixing groove (39) on the side near the beam splitter (11). The first fixing groove (39) is connected to the first mounting groove (38). The first fixing member (36) is movably embedded in the first fixing groove (39). The side of the first fixing member (36) away from the beam splitter (11) is used to abut against the first star plate (35). The first fixing member (36) is installed on the first mounting frame (34) by bolts.

5. A dual-channel multi-satellite analog device according to claim 1, characterized in that: The second star path assembly (4) includes a second mounting base (41), a second light source (42), and a second mounting frame (43); The second mounting base (41) is disposed inside the housing (1), the second light source (42) is disposed on the inner side wall of the housing (1), the second mounting frame (43) is disposed on the second mounting base (41), the second mounting frame (43) is located between the second light source (42) and the beam splitter (11), the second mounting frame (43) is provided with a second star plate (44), and the second star plate (44) is detachably connected to the second mounting frame (43).

6. A dual-channel multi-satellite analog device according to claim 5, characterized in that: The second mounting base (41) is provided with a second sliding stage (5). The bottom of the second sliding stage (5) is fixedly installed on the top of the second mounting base (41). The sliding end of the second sliding stage (5) is fixedly connected to the bottom of the second mounting frame (43). The sliding direction of the sliding end of the second sliding stage (5) is parallel to the beam direction of the second star path assembly (4).

7. A dual-channel multi-satellite analog device according to claim 6, characterized in that: The bottom of the second mounting frame (43) is provided with a connecting part (6), which is fixedly connected to the top of the second sliding stage (5). The top of the connecting part (6) is provided with an abutting part (61). The top of the second mounting frame (43) is provided with an insertion hole (7), and the mounting part (71) is slidably provided in the insertion hole (7) along the vertical direction. The second star plate (44) is provided on the mounting part (71).

8. A dual-channel multi-satellite analog device according to claim 7, characterized in that: The mounting part (71) has a second mounting groove (72) on the side near the second light source (42), and the second star plate (44) is disposed in the second mounting groove (72). The mounting part (71) is provided with a second fixing member (73), which is used to limit the position of the second star plate (44) in the second mounting groove (72).

9. A dual-channel multi-satellite analog device according to claim 8, characterized in that: The second fixing member (73) is configured as a second fixing frame. The second fixing member (73) is inserted into the second mounting groove (72). One side of the second fixing member (73) is used to abut against the second star plate (44). A fixing ear (74) is fixedly provided on the second fixing member (73). A second fixing groove (75) is provided on the mounting part (71) for the fixing ear (74) to be inserted. The fixing ear (74) is fixedly installed in the second fixing groove (75) by bolts.

10. A dual-channel multi-satellite analog device according to claim 7, characterized in that: The top of the box (1) is provided with a through hole (8), which is located above the insertion hole (7). The through hole (8) is used for the installation part (71) to pass through. The top of the box (1) is provided with a sealing plate (81), which is used to close the through hole (8). The sealing plate (81) is detachably set on the top of the box (1) by bolts.

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