A ground interactive projection display system

Abstract

The application relates to the technical field of ground interactive projection, and discloses a ground interactive projection display system, which comprises a mounting rod, a motor is fixedly connected to the right side surface of the mounting rod, and a bidirectional threaded rod is fixedly connected to the output shaft of the motor. The ground interactive projection display system is provided with a bidirectional threaded rod, a sliding block, an ultra-short-focus laser projector and other components, the motor is started to drive the bidirectional threaded rod to rotate, the sliding block is relatively moved through the bidirectional threaded rod, and then the two ultra-short-focus laser projectors on the two sides can be close to or away from the ultra-short-focus laser projector in the middle, so that the pictures can be seamlessly spliced, the device can improve the flexibility and adaptability of display content, supports quick switching of multi-theme content, meets the needs of exhibition hall layout in different periods, the depth camera and the infrared sensor can provide basic data for interactive experience, the radar sensor and the laser radar can provide a basis for triggering of personalized display content, and real-time interactive response can be realized.

Description

Technical Field

[0001] This application relates to the field of ground interactive projection technology, specifically a ground interactive projection display system. Background Technology

[0002] With the continuous innovation of cultural exhibition methods, history museums are gradually evolving from traditional static display boards to dynamic, multimedia, and immersive exhibition methods. Among them, ground projection display systems have become an important technical means to enhance the interactive experience of museums due to their intuitive visual impact and visual storytelling capabilities.

[0003] However, most existing ground projection systems use top-mounted projection equipment to project images onto the ground and display content through preset dynamic images. However, top-mounted projection equipment is usually installed in a fixed manner, which makes it impossible to seamlessly stitch the images when different themes need to be changed. This results in difficulties in updating content and the inability to flexibly switch or customize the display content according to the exhibition theme, causing the display effect to be mismatched with the exhibition theme. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a ground interactive projection display system, which has the advantages of improving the flexibility and adaptability of display content, supporting rapid switching of multiple themes, and meeting the exhibition needs of different periods of exhibition. It solves the problem that in existing technologies, projection equipment is usually fixed, and when different themes need to be changed, the images cannot be seamlessly spliced, the content is difficult to update, and the display content cannot be flexibly switched or customized according to the exhibition theme, resulting in a mismatch between the display effect and the exhibition theme.

[0005] To achieve the above objectives, this application provides the following technical solution: a ground interactive projection display system, including a mounting rod, a motor fixedly connected to the right side of the mounting rod, a bidirectional threaded rod fixedly connected to the output shaft of the motor, the outer surface of the bidirectional threaded rod being rotatably connected to the inner wall of the mounting rod, a fixing block being rotatably connected to the outer surface of the bidirectional threaded rod, two sliding blocks being threadedly connected to the outer surface of the bidirectional threaded rod, a sliding groove being formed on the bottom surface of the mounting rod, the outer surface of the fixing block being fixedly connected to the inner wall of the sliding groove, the outer surface of each sliding block being slidably connected to the inner wall of the sliding groove, and an ultra-short-throw laser projector being fixedly mounted on the bottom surface of each sliding block and the fixing block.

[0006] The above solution enhances the flexibility and adaptability of the displayed content, facilitates seamless splicing of images projected from multiple projectors, supports rapid switching between multiple themes, and meets the exhibition needs of different periods. A motor is fixed to the right side of the mounting rod, and a bidirectional threaded rod is connected to the motor. A sliding groove is created on the bottom of the mounting rod. A fixing block rotates with the bidirectional threaded rod and is fixed to the sliding groove, thus limiting the movement of the bidirectional threaded rod. A sliding block is placed on the inner wall of the sliding groove and slides, with a threaded connection between the sliding block and the bidirectional threaded rod. When different themes need to be changed, the motor rotates the bidirectional threaded rod, which in turn moves the corresponding sliding block. This allows the two ultra-short-throw laser projectors on the left and right sides to move closer to or further away from the central ultra-short-throw laser projector, enabling seamless image splicing. This device enhances the flexibility and adaptability of the displayed content, supports rapid switching between multiple themes, and meets the exhibition needs of different periods.

[0007] Furthermore, the upper surface of the mounting rod is fixedly connected with crossbars arranged at equal intervals, and the inner wall of each crossbar is slidably provided with connecting rods arranged at equal intervals.

[0008] The above scheme involves setting the crossbar on the upper surface of the mounting rod, fixing the crossbar to the mounting rod, setting the connecting rod on the inner wall of the corresponding crossbar, and allowing the crossbar and connecting rod to slide while also being able to separate the crossbar from the connecting rod.

[0009] Furthermore, a limit block is fixedly connected to the outer surface of each connecting rod, and a locking nut is threaded onto the outer surface of each connecting rod.

[0010] The above method involves installing the limiting block on the surface of the corresponding connecting rod, setting it as a fixed connection, and thus achieving the installation of the limiting block. The limiting block can limit the movement of the crossbar. The locking nut is connected to the connecting rod. After the crossbar is connected to the corresponding connecting rod, the locking nut is installed so that the crossbar can be locked on the surface of the connecting rod, thereby achieving the installation of the mounting rod.

[0011] Furthermore, the main body of the exhibition hall is located below the mounting rod, and the top of each connecting rod is fixedly connected to the inner top wall of the main body of the exhibition hall.

[0012] The above method involves placing the main body of the exhibition hall below the installation rod, and connecting the top of the connecting rod to the inner top wall of the main body of the exhibition hall to install the connecting rod, thereby enabling the hoisting of the crossbar.

[0013] Furthermore, the inner wall of the main body of the exhibition hall is fixedly installed with mounting plates arranged at equal intervals, and an infrared sensor is fixedly installed on the bottom surface of each mounting plate.

[0014] The above method involves fixing the mounting plates to the inner wall of the main body of the exhibition hall. Mounting plates are installed on the left, right, front, and back sides. Infrared sensors are installed on the bottom surface of the mounting plates to achieve the installation of infrared sensors.

[0015] Furthermore, a central control host is fixedly installed on the inner top wall of the main body of the exhibition hall, and a display logic processing unit is fixedly installed on the inner top wall of the main body of the exhibition hall.

[0016] The above solution involves installing the central control host on the inner ceiling wall of the main exhibition hall, and similarly, installing the display logic processing unit on the inner ceiling wall of the main exhibition hall. The central control host is responsible for the coordination and control of the entire system, while the display logic processing unit focuses on processing and analyzing the sensor signals. The display logic processing unit can quickly and accurately process the sensor signals, determine the audience's behavioral intentions, and trigger corresponding display content, thus realizing real-time interaction between the audience and the display content.

[0017] Furthermore, a radar sensor and a lidar are fixedly connected to the inner top wall of the main body of the exhibition hall.

[0018] The above solution involves installing radar sensors on the inner ceiling of the main exhibition hall, setting them as fixed installations, and similarly installing lidar on the inner ceiling of the main exhibition hall. Through the radar sensors and lidar, the audience's hand gestures and actions can be further identified, as well as the audience's lingering behavior in front of a certain exhibit, providing a basis for triggering personalized display content.

[0019] Furthermore, a fixed frame is fixedly installed on the inner top wall of the main body of the exhibition hall, and a depth camera is fixedly installed on the inner wall of the fixed frame.

[0020] The above solution involves installing a mounting bracket on the inner ceiling of the main exhibition hall and connecting the depth camera to the bracket. This allows for the precise capture of various movements of visitors on the ground using the depth camera and infrared sensors, providing basic data for the interactive experience.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This ground-based interactive projection display system, through the use of components such as a bidirectional threaded rod, sliding blocks, and ultra-short-throw laser projectors, allows for seamless image stitching when different themes need to be changed. The motor is activated to rotate the bidirectional threaded rod, which, through its connection to the sliding blocks, moves relative to the sliding blocks. This allows the ultra-short-throw laser projectors on both sides to move closer to or further away from the central ultra-short-throw laser projector, enhancing the flexibility and adaptability of the displayed content. It supports rapid switching between multiple themes, meeting the needs of exhibition halls at different times. Depth cameras and infrared sensors accurately capture various movements of visitors on the ground, providing basic data for interactive experiences. Radar sensors and lidar further identify visitor gestures and determine their lingering behavior in front of exhibits, providing a basis for triggering personalized display content. A central control unit coordinates and controls the entire system, while the display logic processing unit focuses on processing and analyzing the sensed signals, enabling real-time interactive responses. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is the overall main view structure diagram of this application;

[0025] Figure 3 This is a diagram of the internal structure of the main exhibition hall in this application;

[0026] Figure 4 This is a structural diagram showing the connection relationship between the mounting plate and the infrared sensor in this application;

[0027] Figure 5 This is a structural diagram showing the connection relationship between the connecting rod and the limiting block in this application;

[0028] Figure 6 This is a structural diagram showing the connection relationship between the bidirectional threaded rod and the sliding block in this application.

[0029] In the picture:

[0030] 1. Mounting rod; 2. Motor; 3. Bidirectional threaded rod; 4. Fixing block; 5. Sliding block; 6. Sliding groove; 7. Ultra-short throw laser projector; 8. Crossbar; 9. Connecting rod; 10. Limiting block; 11. Locking nut; 12. Main body of the exhibition hall; 13. Mounting plate; 14. Infrared sensor; 15. Central control host; 16. Display logic processing unit; 17. Fixing frame; 18. Depth camera; 19. Radar sensor; 20. LiDAR. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 3 , Figure 4 and Figure 6 This embodiment of a ground interactive projection display system includes a mounting rod 1, a motor 2 fixedly connected to the right side of the mounting rod 1, a bidirectional threaded rod 3 fixedly connected to the output shaft of the motor 2, the outer surface of the bidirectional threaded rod 3 being rotatably connected to the inner wall of the mounting rod 1, a fixing block 4 being rotatably connected to the outer surface of the bidirectional threaded rod 3, two sliding blocks 5 being threadedly connected to the outer surface of the bidirectional threaded rod 3, a sliding groove 6 being provided on the bottom surface of the mounting rod 1, the outer surface of the fixing block 4 being fixedly connected to the inner wall of the sliding groove 6, the outer surface of each sliding block 5 being slidably connected to the inner wall of the sliding groove 6, and an ultra-short-throw laser projector 7 being fixedly installed on the bottom surface of each sliding block 5 and the fixing block 4.

[0033] Please see Figure 3 , Figure 5 and Figure 6 The upper surface of the mounting rod 1 is fixedly connected with crossbars 8 arranged at equal intervals. Each crossbar 8 has a connecting rod 9 arranged at equal intervals slidingly on its inner wall. The crossbars 8 are set on the upper surface of the mounting rod 1 and fixed to the mounting rod 1. The connecting rods 9 are set on the inner wall of the corresponding crossbars 8. The crossbars 8 and the connecting rods 9 can slide, and at the same time, the crossbars 8 and the connecting rods 9 can be separated.

[0034] Please see Figure 5 Each connecting rod 9 has a limiting block 10 fixedly connected to its outer surface, and a locking nut 11 threadedly connected to its outer surface. The limiting block 10 is installed on the surface of the corresponding connecting rod 9 to form a fixed connection, thereby realizing the installation of the limiting block 10. The limiting block 10 can limit the movement of the crossbar 8. The locking nut 11 is connected to the connecting rod 9. After the crossbar 8 is connected to the corresponding connecting rod 9, the locking nut 11 is installed so that the crossbar 8 can be locked on the surface of the connecting rod 9, thereby realizing the installation of the mounting rod 1.

[0035] Please see Figure 1 , Figure 2 and Figure 3Below the mounting rod 1 is the main body 12 of the exhibition hall. The top of each connecting rod 9 is fixedly connected to the inner top wall of the main body 12 of the exhibition hall. The main body 12 of the exhibition hall is set below the mounting rod 1, and the top of the connecting rod 9 is connected to the inner top wall of the main body 12 of the exhibition hall, so as to realize the installation of the connecting rod 9 and thus realize the hoisting of the crossbar 8.

[0036] Please see Figure 4 The inner wall of the main body 12 of the exhibition hall is fixedly equipped with mounting plates 13 arranged at equal intervals. An infrared sensor 14 is fixedly installed on the bottom surface of each mounting plate 13. The mounting plates 13 are fixed to the inner wall of the main body 12 of the exhibition hall. Mounting plates 13 are installed on the left, right, front and back. The infrared sensor 14 is installed on the bottom surface of the mounting plate 13 to realize the installation of the infrared sensor 14.

[0037] Please see Figure 4 A central control host 15 is fixedly installed on the inner ceiling wall of the main body 12 of the exhibition hall, and a display logic processing unit 16 is also fixedly installed on the inner ceiling wall of the main body 12 of the exhibition hall. The central control host 15 is responsible for the coordination and control of the entire system, while the display logic processing unit 16 focuses on processing and analyzing the sensing signals. The display logic processing unit 16 can quickly and accurately process the sensing signals, judge the audience's behavioral intentions, and trigger the corresponding display content to realize real-time interaction between the audience and the display content.

[0038] Please see Figure 4 A radar sensor 19 is fixedly connected to the inner top wall of the main body 12 of the exhibition hall, and a lidar 20 is also fixedly connected to the inner top wall of the main body 12 of the exhibition hall. The radar sensor 19 is installed on the inner top wall of the main body 12 of the exhibition hall and is set as fixed. The lidar 20 is also installed on the inner top wall of the main body 12 of the exhibition hall. The radar sensor 19 and lidar 20 can further identify the audience's hand gestures and determine the audience's lingering behavior in front of a certain exhibit, providing a basis for triggering personalized display content.

[0039] Please see Figure 3 and Figure 4 A mounting bracket 17 is fixedly installed on the inner top wall of the main body 12 of the exhibition hall. A depth camera 18 is fixedly installed on the inner wall of the mounting bracket 17. The mounting bracket 17 is installed on the inner top wall of the main body 12 of the exhibition hall, and the depth camera 18 is connected to the mounting bracket 17 to realize the installation of the depth camera 18. Through the depth camera 18 and the infrared sensor 14, various movements of the audience in the ground area can be accurately captured, providing basic data for interactive experience.

[0040] This embodiment of a ground interactive projection display system includes components such as a bidirectional threaded rod 3, a sliding block 5, and an ultra-short-throw laser projector 7. When different themes need to be changed, the motor 2 is started to rotate the bidirectional threaded rod 3. The connection between the bidirectional threaded rod 3 and the sliding block 5 causes the sliding block 5 to move relative to the central ultra-short-throw laser projector 7, allowing the ultra-short-throw laser projectors 7 on both sides to move closer to or further away from the central ultra-short-throw laser projector 7. This enables seamless image splicing, improving the flexibility and adaptability of the display content, supporting rapid switching between multiple themes, and meeting the exhibition needs of different periods in the exhibition hall. The depth camera 18 and infrared sensor 14 can accurately capture various actions of the audience in the ground area, providing basic data for the interactive experience. The radar sensor 19 and lidar 20 can further identify the audience's gestures and determine the audience's lingering behavior in front of a certain exhibit, providing a basis for triggering personalized display content. The central control host 15 is responsible for the coordination and control of the entire system, while the display logic processing unit 16 focuses on processing and analyzing the sensed signals, enabling real-time interactive response.

[0041] It should be noted that motor 2 is a servo motor, which can realize the forward and reverse rotation of the bidirectional threaded rod 3, thereby enabling the sliding block 5 to move laterally for adjustment.

[0042] The working principle of the above embodiments is as follows:

[0043] When different themes need to be changed, the motor 2 is started to rotate the bidirectional threaded rod 3. The connection between the bidirectional threaded rod 3 and the sliding block 5 causes the sliding block 5 to move relative to the sliding block 5, thereby allowing the ultra-short-throw laser projectors 7 on both sides to move closer to or further away from the ultra-short-throw laser projector 7 in the middle. This allows for seamless image splicing, enhancing the flexibility and adaptability of the displayed content. It supports rapid switching between multiple themes to meet the exhibition needs of different periods. The infrared sensor 14 and depth camera 18 can accurately capture various actions of the audience on the ground, providing basic data for interactive experiences. The radar sensor 19 and lidar 20 can further identify the audience's gestures and determine the audience's lingering behavior in front of a certain exhibit, providing a basis for triggering personalized display content. The central control host 15 is responsible for the coordination and control of the entire system, while the display logic processing unit 16 focuses on processing and analyzing the sensor signals. It can quickly and accurately process the sensor signals, determine the audience's behavioral intentions, and trigger the corresponding display content, realizing real-time interaction between the audience and the display content. This enables the device to achieve real-time interactive response.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ground interactive projection display system, comprising a mounting pole (1), characterized in that: A motor (2) is fixedly connected to the right side of the mounting rod (1). A bidirectional threaded rod (3) is fixedly connected to the output shaft of the motor (2). The outer surface of the bidirectional threaded rod (3) is rotatably connected to the inner wall of the mounting rod (1). A fixing block (4) is rotatably connected to the outer surface of the bidirectional threaded rod (3). Two sliding blocks (5) are threadedly connected to the outer surface of the bidirectional threaded rod (3). A sliding groove (6) is provided on the bottom surface of the mounting rod (1). The outer surface of the fixing block (4) is fixedly connected to the inner wall of the sliding groove (6). The outer surface of each sliding block (5) is slidably connected to the inner wall of the sliding groove (6). An ultra-short-throw laser projector (7) is fixedly installed on the bottom surface of each sliding block (5) and the fixing block (4).

2. The ground interactive projection display system according to claim 1, characterized in that: The upper surface of the mounting rod (1) is fixedly connected with crossbars (8) arranged at equal intervals, and each crossbar (8) has a connecting rod (9) arranged at equal intervals slidingly disposed on its inner wall.

3. The ground interactive projection display system according to claim 2, characterized in that: Each of the connecting rods (9) has a limit block (10) fixedly connected to its outer surface, and each of the connecting rods (9) has a locking nut (11) threadedly connected to its outer surface.

4. The ground interactive projection display system according to claim 2, characterized in that: The exhibition hall body (12) is located below the mounting rod (1), and the top of each of the connecting rods (9) is fixedly connected to the inner top wall of the exhibition hall body (12).

5. A ground interactive projection display system according to claim 4, characterized in that: The inner wall of the main body (12) of the exhibition hall is fixedly installed with mounting plates (13) arranged at equal intervals, and an infrared sensor (14) is fixedly installed on the bottom surface of each mounting plate (13).

6. The ground interactive projection display system according to claim 4, characterized in that: The main body of the exhibition hall (12) is fixedly installed with a central control host (15) on the inner top wall, and the main body of the exhibition hall (12) is fixedly installed with a display logic processing unit (16).

7. A ground interactive projection display system according to claim 4, characterized in that: A radar sensor (19) is fixedly connected to the inner top wall of the main body of the exhibition hall (12), and a lidar (20) is fixedly connected to the inner top wall of the main body of the exhibition hall (12).

8. A ground interactive projection display system according to claim 4, characterized in that: A mounting bracket (17) is fixedly installed on the inner top wall of the main body of the exhibition hall (12), and a depth camera (18) is fixedly installed on the inner wall of the mounting bracket (17).

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