AR dynamic interaction device based on holographic projection technology

Abstract

The utility model discloses AR dynamic interactive device based on holographic projection technique, including interactive device ontology, the upper portion of interactive device ontology is provided with main projection mouth, and the upside of main projection mouth is installed with compound projection support mechanism, and compound projection support mechanism includes the chassis, and the fixed setting of chassis has acrylic sheet, and the top fixed mounting of acrylic sheet has the positioning frame. This AR dynamic interactive device based on holographic projection technique, and the upper and lower sides of four acrylic sheets are fixedly provided with positioning frame and chassis respectively, form a stable holographic projection curtain wall, will not happen " collapse waist " condition, avoid destroying the symmetry light path required for holographic projection, guarantee holographic projection work normal progress, and four acrylic sheets are combined together and show the pyramid shape, can accurate construction meet the optical space of holographic projection principle, make the light form symmetrical reflection in it, let the observer can clearly see the complete three -dimensional holographic image from multiple angles.

Description

Technical Field

[0001] This utility model relates to the field of interactive devices, specifically an AR dynamic interactive device based on holographic projection technology. Background Technology

[0002] Holographic projection, a type of 3D technology, originally refers to the technology of recording and reproducing the true three-dimensional image of an object using the principle of interference. AR dynamic picture books based on holographic projection are AR dynamic picture books with holographic projection capabilities. Interactive devices are devices that enable human-computer interaction. Because the projected content requires human control, the interactive device is an essential structure of the entire AR dynamic picture book based on holographic projection. However, existing AR dynamic picture book interactive devices based on holographic projection technology have certain shortcomings that need improvement. First, existing AR dynamic picture book interactive devices based on holographic projection technology are inconvenient to store. When the interactive device is not in use, it is inconvenient to store it. During exhibition, there are safety concerns such as bumps, impacts, water ingress, and dust, resulting in poor practicality. Second, existing AR dynamic picture book interactive devices based on holographic projection technology lack voice interaction and motion-sensing interaction functions, resulting in poor functionality.

[0003] To address the aforementioned issues, a search revealed Chinese patent CN113703566A, which discloses an AR dynamic picture book interactive device and its interaction method based on holographic projection technology. The device includes a base with a transparent window centrally located on the upper surface. A transparent film is provided on the upper part of the base outside the transparent window. A motion-sensing camera is embedded in the center of one side of the base near the top. A groove is formed on the front surface of the base, and a shell is provided inside the groove. A touch screen is embedded in the top of the shell.

[0004] Although the aforementioned device can be drawn using a CPU software program via a touchscreen, and the drawn content is sent to a holographic projector via a Bluetooth module or serial port, and the holographic projector works with a transparent window and a transparent film to perform holographic projection; however, in actual use, the projected information is displayed on the transparent film, which is cone-shaped, narrow at the bottom and wide at the top. The transparent film is soft and has no supporting frame, so it will gradually "collapse" and change from a regular cone shape to an irregular shape that is "wide at the top and narrow at the bottom but tilted", which will destroy the symmetrical light path required for holographic projection. Utility Model Content

[0005] The purpose of this invention is to provide an AR dynamic interactive device based on holographic projection technology to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, an AR dynamic interactive device based on holographic projection technology is provided, including an interactive device body. The upper part of the interactive device body has a main projection port, and a composite projection support mechanism is installed on the upper side of the main projection port. The composite projection support mechanism includes a base frame, an acrylic sheet is fixedly mounted on the base frame, a positioning frame is fixedly mounted on the top of the acrylic sheet, a diagonal brace is fixedly mounted on the outer side of the acrylic sheet, and a positioning seat is fixedly mounted on the outer side of the base frame.

[0007] Furthermore, two sets of positioning grooves are provided at the four corners of the inner wall of the main projection port. The base frame is square, and two sets of positioning seats are fixedly installed at the four corners of the base frame. The dimensions of the positioning seats and the positioning grooves are compatible.

[0008] Furthermore, the positioning seat is inserted into the inside of the positioning groove, the depth of the positioning groove is equal to the thickness of the positioning seat, and both the positioning seat and the positioning groove are dovetail-shaped. The base frame is positioned and assembled on the main projection port by multiple sets of positioning seats and positioning grooves.

[0009] Furthermore, the composite projection support mechanism also includes a diagonal brace, a support column, a support plate, an equipment placement slot, and a secondary projection port. A support column is fixedly installed on the top of the positioning seat, and the support plate is square.

[0010] Furthermore, the bottom of the support plate is evenly provided with multiple sets of insertion holes, the insertion holes being adapted to the size of the support column, and the top of the support column being inserted into the insertion hole.

[0011] Furthermore, the support plate has a device placement slot in the middle, a secondary projection port on the device placement slot, a secondary projection channel at the bottom of the secondary projection port, and the secondary projection channel is fixedly connected to the positioning frame.

[0012] Furthermore, the positioning frame is square, and four inclined acrylic sheets are evenly arranged between the positioning frame and the base frame, with diagonal bracing frames fixed between adjacent groups of acrylic sheets.

[0013] Furthermore, the four acrylic sheets are combined to form a pyramid shape, with all four acrylic sheets having the same surface area, and the acrylic sheets are isosceles trapezoids.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this solution, the acrylic sheets are supported and fixed by diagonal bracing. At the same time, positioning frames and base frames are fixed on the upper and lower sides of the four sets of acrylic sheets, forming a stable holographic projection screen wall. This will prevent the "waist collapse" and avoid disrupting the symmetrical light path required for holographic projection, thus ensuring the normal operation of holographic projection.

[0016] 2. This solution uses a projection device inside the interactive device to holographically project the first image onto four sets of acrylic sheets. At the same time, a projection device is placed inside the device placement slot to holographically project the second image onto the four sets of acrylic sheets, thus achieving the purpose of composite holographic projection. It can present richer and more three-dimensional information content through the superposition of multiple images, making the holographic image more layered and complete.

[0017] 3. In this solution, four acrylic sheets are combined to form a pyramid shape, which can accurately construct an optical space that conforms to the principle of holographic projection, so that light forms symmetrical reflections in it, allowing the observer to clearly see the complete three-dimensional holographic image from multiple angles. At the same time, this structure, together with the positioning frame, base frame, and diagonal support frame, can further enhance the overall stability, ensure the accuracy of the optical path, and improve the display effect and reliability of holographic projection. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Side view;

[0020] Figure 3 This is a schematic diagram of the composite projection support mechanism of this utility model.

[0021] Figure 4 for Figure 3 Cross-sectional view;

[0022] Figure 5 for Figure 4 A bottom view.

[0023] The following are the labeling elements in the diagram: 1. Interactive device body; 2. Main projection port; 3. Positioning slot; 4. Composite projection support mechanism; 40. Base frame; 41. Positioning seat; 42. Acrylic sheet; 43. Positioning frame; 431. Secondary projection channel; 44. Diagonal brace; 45. Support column; 46. Support plate; 461. Insertion hole; 47. Equipment placement slot; 48. Secondary projection port. Detailed Implementation

[0024] Please see Figure 1-5 This utility model provides an AR dynamic interactive device based on holographic projection technology, including an interactive device body 1. The upper part of the interactive device body 1 is provided with a main projection port 2. A composite projection support mechanism 4 is installed on the upper side of the main projection port 2. The composite projection support mechanism 4 includes a base frame 40. An acrylic sheet 42 is fixedly installed on the base frame 40. A positioning frame 43 is fixedly installed on the top of the acrylic sheet 42. A diagonal support frame 44 is fixedly installed on the outer side of the acrylic sheet 42. A positioning seat 41 is fixedly installed on the outer side of the base frame 40.

[0025] Working principle: Four sets of acrylic sheets 42 are installed on the upper side of the interactive device body 1. The acrylic sheets 42 are supported and fixed by diagonal braces 44. At the same time, positioning frames 43 and base frames 40 are fixed on the upper and lower sides of the four sets of acrylic sheets 42 respectively, forming a stable holographic projection screen wall. It will not "collapse" and avoids destroying the symmetrical light path required for holographic projection, ensuring that the holographic projection works normally. The interactive device body 1 uses the CPU software program to draw on the touch screen. The drawn content is sent to the holographic projector through Bluetooth module or serial port. The holographic projector works with the transparent window and holographic projection screen wall to perform holographic projection. The aforementioned touch screen and CPU and other electronic devices are installed inside the interactive device. Their working method has been fully disclosed in the prior art in the background art documents. They are not essential technical features to be protected in this case and will not be described again here.

[0026] As a preferred embodiment, two sets of positioning grooves 3 are provided at the four corners of the inner wall of the main projection port 2. The base frame 40 is square, and two sets of positioning seats 41 are fixedly installed at the four corners of the base frame 40. The dimensions of the positioning seats 41 and the positioning grooves 3 are compatible.

[0027] The positioning seat 41 is inserted into the inside of the positioning groove 3. The depth of the positioning groove 3 is equal to the thickness of the positioning seat 41. Both the positioning seat 41 and the positioning groove 3 are dovetail-shaped. The base frame 40 is positioned and assembled on the main projection port 2 by multiple sets of positioning seats 41 and positioning grooves 3.

[0028] The composite projection support mechanism 4 also includes a diagonal brace 44, a support column 45, a support plate 46, an equipment placement slot 47, and a secondary projection port 48. The support column 45 is fixedly installed on the top of the positioning seat 41, and the support plate 46 is square.

[0029] The bottom of the support plate 46 has multiple sets of insertion holes 461 evenly distributed. The insertion holes 461 are adapted to the size of the support column 45, and the top of the support column 45 is inserted into the inside of the insertion holes 461.

[0030] The support plate 46 has an equipment placement slot 47 in the middle, and a secondary projection port 48 is provided on the equipment placement slot 47. A secondary projection channel 431 is provided at the bottom of the secondary projection port 48, and the secondary projection channel 431 is fixedly connected to the positioning frame 43.

[0031] like Figure 1-2As shown: The first image information is holographically projected onto four sets of acrylic sheets 42 through the projection device inside the interactive device body 1. At the same time, the projection device inside the device placement slot 47 projects the second image information holographically onto the four sets of acrylic sheets 42, thus achieving the purpose of composite holographic projection. It can present richer and more three-dimensional information content through the superposition of multiple images, making the holographic image more layered and complete. At the same time, the cooperation of the two projection devices can flexibly adjust the image combination method to meet the display needs of different scenarios, improve the efficiency of information transmission and the richness of the viewing experience.

[0032] In a preferred embodiment, the positioning frame 43 is square, and four acrylic sheets 42 in an inclined state are evenly arranged between the positioning frame 43 and the base frame 40. An inclined support frame 44 is fixedly arranged between two adjacent sets of acrylic sheets 42.

[0033] like Figure 1-4 As shown: The four sets of acrylic sheets 42 installed on the upper side of the interactive device body 1 are supported and fixed by the diagonal brace 44, and the positioning frame 43 and the base frame 40 are fixed on the upper and lower sides respectively. The holographic projection screen wall formed by this is extremely stable and can effectively avoid the "waist collapse" situation, thereby ensuring that the symmetrical light path required for holographic projection is not destroyed. This fundamentally ensures that the holographic projection can work normally. This structural design not only improves the overall stability of the device, but also provides a reliable structural foundation for the precise operation of holographic projection, so that the projection effect is not affected by structural deformation and maintains good display quality. At the same time, the four acrylic sheets 42 are combined together to form a pyramid shape, which can accurately construct an optical space that conforms to the principle of holographic projection, so that light forms symmetrical reflection in it, allowing the observer to clearly see the complete three-dimensional holographic image from multiple angles. At the same time, this structure, together with the positioning frame 43, the base frame 40, and the diagonal brace 44, can further enhance the overall stability, ensure the accuracy of the optical path, and improve the display effect and reliability of holographic projection.

[0034] The four acrylic sheets 42 are combined together to form a pyramid shape. The four acrylic sheets 42 have the same surface area and are isosceles trapezoids.

Claims

1. An AR dynamic interactive device based on holographic projection technology, comprising an interactive device body (1), characterized in that: The main projection port (2) is provided on the upper part of the interactive device body (1). A composite projection support mechanism (4) is installed on the upper side of the main projection port (2). The composite projection support mechanism (4) includes a base frame (40). An acrylic sheet (42) is fixedly installed on the base frame (40). A positioning frame (43) is fixedly installed on the top of the acrylic sheet (42). A diagonal support frame (44) is fixedly installed on the outer side of the acrylic sheet (42). A positioning seat (41) is fixedly installed on the outer side of the base frame (40).

2. The AR dynamic interactive device based on holographic projection technology according to claim 1, characterized in that: The main projection port (2) has two sets of positioning grooves (3) at the four corners of its inner wall. The base frame (40) is square, and two sets of positioning seats (41) are fixedly installed at the four corners of the base frame (40). The dimensions of the positioning seats (41) and the positioning grooves (3) are compatible.

3. The AR dynamic interactive device based on holographic projection technology according to claim 2, characterized in that: The positioning seat (41) is inserted into the inside of the positioning groove (3). The depth of the positioning groove (3) is equal to the thickness of the positioning seat (41). At the same time, both the positioning seat (41) and the positioning groove (3) are dovetail-shaped. The base frame (40) is positioned and assembled on the main projection port (2) by multiple sets of positioning seats (41) and positioning grooves (3).

4. The AR dynamic interactive device based on holographic projection technology according to claim 3, characterized in that: The composite projection support mechanism (4) also includes a diagonal brace (44), a support column (45), a support plate (46), an equipment placement slot (47), and a secondary projection port (48). The top of the positioning seat (41) is fixedly provided with a support column (45), and the support plate (46) is square.

5. The AR dynamic interactive device based on holographic projection technology according to claim 4, characterized in that: The bottom of the support plate (46) has a plurality of sets of insertion holes (461) evenly provided. The insertion holes (461) are adapted to the size of the support column (45), and the top of the support column (45) is inserted into the inside of the insertion hole (461).

6. The AR dynamic interactive device based on holographic projection technology according to claim 5, characterized in that: The support plate (46) has a device placement slot (47) in the middle, and a secondary projection port (48) is provided on the device placement slot (47). A secondary projection channel (431) is provided at the bottom of the secondary projection port (48), and the secondary projection channel (431) is fixedly connected to the positioning frame (43).

7. The AR dynamic interactive device based on holographic projection technology according to claim 6, characterized in that: The positioning frame (43) is square, and four acrylic sheets (42) in an inclined state are evenly arranged between the positioning frame (43) and the base frame (40). An inclined support frame (44) is fixedly arranged between two adjacent sets of acrylic sheets (42).

8. The AR dynamic interactive device based on holographic projection technology according to claim 7, characterized in that: The four acrylic sheets (42) are combined together to form a pyramid shape. The four acrylic sheets (42) have the same surface area and are isosceles trapezoids.

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