Adjustable camera array suitable for posture interaction equipment

Abstract

The utility model discloses an adjustable camera array suitable for posture interaction equipment, which comprises a positioning frame, a control panel is fixedly arranged on the outer wall of the positioning frame, a data transmission box is fixedly arranged at the upper end of the positioning frame, two adjusting structures are fixedly arranged in the positioning frame, and the two adjusting structures are connected with the control panel. The two adjusting structures comprise two limiting frames fixedly installed in the positioning frame, first motors are fixedly installed in the two limiting frames, the output ends of the first motors are fixedly connected with threaded rods, the outer walls of the two threaded rods are in threaded connection with a plurality of guide bases, and guide frames are fixedly installed on the outer walls of the guide bases; second motors are fixedly installed in the multiple guide frames, threaded lead screws are fixedly connected to the output ends of the second motors, three nut seats are in threaded connection with the outer walls of the threaded lead screws, and the positions and angles of the camera units can be flexibly adjusted according to different application scenes, user body types and action ranges.

Description

Technical Field

[0001] This utility model relates to the field of body interaction device technology, and in particular to an adjustable camera array suitable for body interaction devices. Background Technology

[0002] Camera arrays are used to accurately capture human posture information, providing data support for fields such as virtual reality, film and television production, sports training, and medical rehabilitation. In the application scenarios of body interaction devices, such as virtual reality games and motion capture, accurately capturing human posture is the key to achieving good interactive effects.

[0003] Currently, traditional camera arrays have many shortcomings. Most camera arrays have fixed camera positions and angles, which cannot be flexibly adjusted according to different application scenarios, user body shapes, and range of motion. This results in some movements or body parts not being effectively captured, reducing the accuracy of posture recognition and the flexibility of the camera. To address these issues, an adjustable camera array suitable for body interaction devices is proposed for improvement and upgrade. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable camera array suitable for body interaction devices to solve the problems mentioned in the background art.

[0005] To solve the above problems, the following technical solution is provided: an adjustable camera array suitable for body interaction devices, including a positioning frame, a control panel fixedly installed on the outer wall of the positioning frame, a data transmission box fixedly installed at the upper end of the positioning frame, two adjustment structures fixedly installed inside the positioning frame, the two adjustment structures including two limiting frames fixedly installed inside the positioning frame, a first motor fixedly installed inside each of the two limiting frames, and a threaded rod fixedly connected to the output end of the first motor, multiple guide seats threadedly connected to the outer walls of the two threaded rods, and guide frames fixedly installed on the outer walls of the guide seats, a second motor fixedly installed inside each of the multiple guide frames, a threaded screw fixedly connected to the output end of each of the second motors, three nut seats threadedly connected to the outer walls of each threaded screw, and two support plates fixedly installed on the outer walls of each nut seat, with a camera body installed above each support plate;

[0006] The positioning frame is equipped with omnidirectional wheels at the four corners of its bottom and limit structures on both sides.

[0007] As a preferred embodiment of the above technical solution, each of the two limiting frames has two guide grooves inside, and the inner walls of the multiple guide frames are symmetrically arranged with two guide sliders located in the guide seat, and the guide sliders are slidably connected inside the guide grooves.

[0008] As a preferred embodiment of the above technical solution, the threaded rod is rotatably installed inside the limiting frame, and multiple guide frames are equally spaced on the threaded rod, with the two limiting frames positioned relative to each other.

[0009] As a preferred embodiment of the above technical solution, a protective cover is fixedly installed on the upper end of the guide frame, the second motor is fixedly installed inside the protective cover, the threaded screw is rotatably installed inside the guide frame, and the three nut seats are equidistantly arranged.

[0010] As a preferred embodiment of the above technical solution, the inner wall of the support plate is symmetrically and fixedly provided with limiting protrusions on both sides of the nut seat, and the limiting protrusions are slidably connected to two guide slide rods respectively, and the two guide slide rods are fixedly installed inside the guide frame respectively.

[0011] As a preferred embodiment of the above technical solution, a rotary motor is fixedly installed inside each of the two support plates, and a limit plate is fixedly connected to the upper end of each rotary motor, with the upper end of the limit plate fixedly connected to the camera body.

[0012] As a preferred embodiment of the above technical solution, the camera body adopts a high resolution, high frame rate camera, and the limiting structure includes electric push rods fixedly installed on both sides of the positioning frame. A positioning plate is fixedly installed at one end of each of the two electric push rods, and an anti-slip pad is attached to the bottom of the positioning plate. Two limiting rods are symmetrically fixedly connected to the upper end of the positioning plate, and the limiting rods are slidably connected to both sides of the positioning frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Flexible and adjustable: Through the coordinated work of horizontal, vertical and rotational adjustment, the camera array can flexibly adjust the position and angle of the camera units according to different application scenarios, user body size and range of motion, so as to achieve all-round coverage and effective capture of human posture, which greatly improves the accuracy of posture recognition.

[0015] Meanwhile, the adjustable camera array is suitable for a variety of body posture interaction devices and application fields, with good versatility and scalability, and can provide reliable human posture data acquisition solutions for different industries, thus improving the wide applicability of the camera array.

[0016] By setting a limiting structure, multiple cameras on the positioning frame can be easily moved using omnidirectional wheels when shooting human body postures from different positions. After moving to the appropriate shooting distance, the positioning plate is moved downwards to fit with the ground by driving two electric push rods. At the same time, the anti-slip pad increases the friction with the ground, which is beneficial for the easy movement of multiple cameras and improves the support stability of the positioning frame, making it easier to shoot relatively clear images.

[0017] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope therefrom. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of an adjustable camera array suitable for body interaction devices according to this utility model;

[0020] Figure 2 This is a schematic diagram of a local adjustment structure for an adjustable camera array suitable for body interaction devices according to this utility model;

[0021] Figure 3 for Figure 2 A partial enlarged diagram of the split structure;

[0022] Figure 4 for Figure 3 A partial enlarged diagram of the split structure;

[0023] Figure 5 for Figure 4 A magnified diagram of the partially disassembled structure.

[0024] In the diagram: 1. Positioning frame; 2. Control panel; 3. Data transmission box; 4. Adjustment structure; 41. Limiting frame; 42. First motor; 43. Threaded rod; 44. Guide groove; 45. Guide frame; 451. Protective cover; 452. Second motor; 453. Threaded screw; 454. Nut seat; 455. Limiting protrusion; 456. Support plate; 4561. Rotary motor; 4562. Limiting plate; 457. Guide slide rod; 46. Guide seat; 47. Guide slider; 5. Camera body; 6. Universal wheel; 7. Limiting structure; 71. Electric push rod; 72. Positioning plate; 73. Limiting rod; 74. Anti-slip pad. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1 to 5As shown, this embodiment provides an adjustable camera array suitable for body interaction devices, including a positioning frame 1. A control panel 2 is fixedly installed on the outer wall of the positioning frame 1. A data transmission box 3 is fixedly installed on the upper end of the positioning frame 1. Two adjustment structures 4 are fixedly installed inside the positioning frame 1. The two adjustment structures 4 include two limiting frames 41 fixedly installed inside the positioning frame 1. A first motor 42 is fixedly installed inside each of the two limiting frames 41, and a threaded rod 43 is fixedly connected to the output end of the first motor 42. Multiple guide seats 46 are threadedly connected to the outer walls of the two threaded rods 43, and guide frames 45 are fixedly installed on the outer walls of the guide seats 46. A second motor 452 is fixedly installed inside each of the multiple guide frames 45. A threaded screw 453 is fixedly connected to the output end of each of the second motors 452. Three nut seats 454 are threadedly connected to the outer walls of each threaded screw 453, and two support plates 456 are fixedly installed on the outer walls of each nut seat 454. A camera body 5 is installed above each support plate 456.

[0027] The positioning frame 1 is connected to four omnidirectional wheels 6 at the bottom corners, and the positioning frame 1 is equipped with limit structures 7 on both sides.

[0028] like Figures 3 to 4 As shown, each of the two limit frames 41 has two guide grooves 44 inside. The inner walls of multiple guide frames 45 are symmetrically arranged with two guide sliders 47 on the guide seat 46. The guide sliders 47 are slidably connected inside the guide grooves 44. The threaded rod 43 is rotatably installed inside the limit frame 41. Multiple guide frames 45 are equidistantly arranged on the threaded rod 43. The two limit frames 41 are positioned opposite each other. A protective cover 451 is fixedly installed on the upper end of the guide frame 45. The second motor 452 is fixedly installed inside the protective cover 451. The threaded screw 453 is rotatably installed inside the guide frame 45. Three nut seats 454 are equidistantly arranged.

[0029] The threaded rod 43 synchronously drives the four sets of guide frames 45 on the three guide seats 46 to move synchronously. When the four sets of guide frames 45 move, they slide and engage with the guide slider 47 in the guide groove 44 in the limit frame 41. This facilitates the synchronous horizontal movement and adjustment of multiple cameras by the four sets of guide frames 45. At the same time, the second motor 452 drives the three support plates 456 on the threaded screw 453 to move vertically. The limit protrusion 455 behind the support plate 456 slides and engages with the guide slide rod 457 to facilitate relative stability when the camera moves vertically.

[0030] The inner wall of the support plate 456 is symmetrically fixed with limiting protrusions 455 on both sides of the nut seat 454. The limiting protrusions 455 are slidably connected to two guide slide rods 457 respectively. The two guide slide rods 457 are fixedly installed inside the guide frame 45. A rotary motor 4561 is fixedly installed inside both support plates 456. A limiting plate 4562 is fixedly connected to the upper end of the rotary motor 4561. The upper end of the limiting plate 4562 is fixedly connected to the camera body 5. The camera body 5 adopts a high resolution, high frame rate camera. The limiting structure 7 includes electric push rods 71 ​​fixedly installed on both sides of the positioning frame 1. A positioning plate 72 is fixedly installed at one end of each of the two electric push rods 71. An anti-slip pad 74 is attached to the bottom of the positioning plate 72. Two limiting rods 73 are symmetrically fixedly connected to the upper end of the positioning plate 72. The limiting rods 73 are slidably connected to both sides of the positioning frame 1.

[0031] A rotary motor 4561 is installed inside the support plate 456, causing the motor 4561 to drive the limit plate 4562 to rotate at multiple angles for shooting at different angles. Simultaneously, the data transmission box 3 uses a 10 Gigabit Ethernet ultra-high-speed acquisition and transmission system to transmit image data acquired by multiple camera units to the control panel 2 in real time, ensuring the timeliness and accuracy of data transmission and avoiding the loss of attitude information due to data transmission delays. Inside the control panel 2, a camera calibration algorithm is used to determine the focal length, principal point, and position and attitude of each camera unit. Through shooting and calculation of known calibration objects, precise calibration of camera parameters is achieved. The synchronization control algorithm uses a millisecond-level synchronization system to achieve multiple... The precise synchronous shooting of the camera unit ensures the consistency of the collected human posture data in time. The camera body 5 adopts a high resolution and high frame rate camera with different field of view to shoot the target human body from multiple angles and obtain human posture image data. The camera can be selected with different pixel, frame rate and field of view parameters according to the application scenario requirements. For example, in medical rehabilitation scenarios with high accuracy requirements, a high pixel camera is used, and in sports training scenarios that capture fast movements, a high frame rate camera is selected. By setting two limit rods 73, it is easy to relatively stably limit the movement of the positioning plate 72, so as to stably drive the positioning plate 72 to fit with the ground and limit the camera body 5 on the positioning frame 1.

[0032] The working principle and process of this utility model are as follows: When it is necessary to shoot different application scenarios, user body shapes and range of motion, by connecting an external power source, the first motor 42 in the two limit frames 41 drives the threaded rod 43 to rotate stably within the limit frame 41. Then, the two threaded rods 43 synchronously drive the cameras on multiple guide frames 45 to move and shoot the user body horizontally at multiple distances. At the same time, the second motor 452 in the guide frame 45 is driven, which drives the second motor 452 to drive the multiple nut seats 454 on the threaded screw 453 to move vertically. At the same time, when the nut seats 454 drive the camera on the support plate 456 to move, the limiting protrusion 455 slides on the guide slide rod 457 to limit the movement, which facilitates the relatively stable vertical movement of multiple cameras. While moving vertically, the rotary motor 4561 is driven, which causes the rotary motor 4561 to drive the camera on the limit plate 4562 to rotate at multiple angles, which facilitates the flexible adjustment of the camera horizontally, vertically and rotating at multiple angles to suit different application scenarios, user body shapes and range of motion for shooting.

[0033] Then, the image data collected by multiple cameras is transmitted in real time to the control panel 2 through the data transmission box 3. The control panel 2 then uses built-in camera calibration algorithm, synchronization control algorithm and image matching and 3D reconstruction algorithm to achieve precise calibration of camera parameters, precise synchronous shooting of multiple cameras and processing and analysis of images captured by different cameras. The image information is fused to construct a 3D model of the human body, thereby achieving accurate estimation of human posture, making the body interaction data more accurate and reducing the error value of the collected human posture data.

[0034] When multiple camera bodies 5 on the positioning frame 1 need to be moved at the same time to take pictures of human postures in different positions, the bottom universal wheels 6 are used to move and transport them to multiple positions. After moving them to a suitable distance, the two electric push rods 71 ​​on the positioning frame 1 drive the positioning plate 72 to move downwards and fit with the ground. At the same time, the anti-slip pad 74 is used to increase its friction and prevent the positioning frame 1 from sliding sideways, which facilitates the convenient movement of multiple cameras while improving its positioning stability.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

Claims

1. An adjustable camera array suitable for body-body interaction devices, characterized in that, The positioning frame (1) includes a control panel (2) fixedly installed on its outer wall. A data transmission box (3) is fixedly installed on the upper end of the positioning frame (1). Two adjustment structures (4) are fixedly installed inside the positioning frame (1). The two adjustment structures (4) include two limit frames (41) fixedly installed inside the positioning frame (1). A first motor (42) is fixedly installed inside each of the two limit frames (41), and a threaded rod (43) is fixedly connected to the output end of the first motor (42). The two threaded rods (43) The outer wall of each guide seat (46) is threadedly connected to multiple guide seats (46), and a guide frame (45) is fixedly installed on the outer wall of each guide seat (46). A second motor (452) is fixedly installed inside each of the multiple guide frames (45). A threaded screw (453) is fixedly connected to the output end of each second motor (452). Three nut seats (454) are threadedly connected to the outer wall of each threaded screw (453), and two support plates (456) are fixedly installed on the outer wall of each nut seat (454). A camera body (5) is installed above each support plate (456). The positioning frame (1) has universal wheels (6) rolling at the four corners of its bottom, and the positioning frame (1) has limit structures (7) on both sides.

2. The adjustable camera array suitable for body interaction devices according to claim 1, characterized in that, Two guide grooves (44) are opened inside each of the two limiting frames (41), and two guide sliders (47) are symmetrically arranged on the inner wall of the multiple guide frames (45) located on the guide seat (46). The guide sliders (47) are slidably connected inside the guide grooves (44).

3. An adjustable camera array suitable for body interaction devices according to claim 2, characterized in that, The threaded rod (43) is rotatably installed inside the limiting frame (41), and multiple guide frames (45) are equally spaced on the threaded rod (43), with the two limiting frames (41) positioned relative to each other.

4. An adjustable camera array suitable for body interaction devices according to claim 3, characterized in that, A protective cover (451) is fixedly installed on the upper end of the guide frame (45), the second motor (452) is fixedly installed inside the protective cover (451), the threaded screw (453) is rotatably installed inside the guide frame (45), and the three nut seats (454) are equidistantly arranged.

5. An adjustable camera array suitable for body interaction devices according to claim 4, characterized in that, The inner wall of the support plate (456) is symmetrically fixed with limiting protrusions (455) on both sides of the nut seat (454), and the limiting protrusions (455) are slidably connected to two guide slide rods (457), and the two guide slide rods (457) are fixedly installed inside the guide frame (45).

6. An adjustable camera array suitable for body interaction devices according to claim 5, characterized in that, A rotary motor (4561) is fixedly installed inside each of the two support plates (456). A limit plate (4562) is fixedly connected to the upper end of each rotary motor (4561), and the upper end of the limit plate (4562) is fixedly connected to the camera body (5).

7. An adjustable camera array suitable for body interaction devices according to claim 1, characterized in that, The camera body (5) adopts a high resolution, high frame rate camera. The limiting structure (7) includes electric push rods (71) fixedly installed on both sides of the positioning frame (1). One end of each of the two electric push rods (71) is fixedly installed with a positioning plate (72) and the bottom of the positioning plate (72) is fitted with an anti-slip pad (74). The upper end of the positioning plate (72) is symmetrically fixedly connected with two limiting rods (73) and the limiting rods (73) are slidably connected to both sides of the positioning frame (1).

Images