VR air floating ball behavior training device and method
Patent Information
- Application Number
- CN202511296306.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2045-09-11
AI Technical Summary
固定跑台虽然能让小鼠进行奔跑训练,但与自然环境差异较大,小鼠在跑台上的运动模式受到跑台结构和运动方式的限制,无法真实反映其在自然环境中的运动特点,例如自然环境中小鼠运动路径的灵活多变、运动节奏的自主调整等,在固定跑台上都难以实现
[0019]与现有技术相比,本发明提供的一种VR气浮球行为训练装置及方法,
Smart Images

Figure CN121003156B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to VR air-floating ball behavior training technology, specifically to a VR air-floating ball behavior training device and method. Background Technology
[0002] In animal behavior research and related motor ability assessment, accurately simulating the natural movement state of animals and obtaining reliable data is crucial. Traditional mouse behavior training devices often have many limitations and cannot meet the increasingly sophisticated, reproducible, and miniaturized needs of scientific research.
[0003] Currently, most common mouse training devices are fixed treadmills or simple exercise platforms. While fixed treadmills allow mice to run and train, they differ significantly from their natural environment. The movement patterns of mice on these platforms are limited by the platform's structure and movement methods, failing to accurately reflect their movement characteristics in the natural environment. For example, the flexibility and variability of movement paths and the autonomous adjustment of movement rhythm that mice exhibit in the natural environment are difficult to achieve on fixed treadmills. Simple exercise platforms, on the other hand, lack effective support and stabilization mechanisms. Mice are easily disturbed during exercise, leading to unstable movement and consequently affecting the accuracy and reliability of the data. Summary of the Invention
[0004] The purpose of this invention is to provide a VR air-floating ball behavior training device and method to overcome the aforementioned shortcomings in the prior art. To achieve the above objective, this invention provides the following technical solution:
[0005] In a first aspect, the present invention provides a VR air-floating ball behavior training device, including a mobile platform and a support frame. A head fixing bracket is provided on the mobile platform, a head-mounted VR display is provided on the head fixing bracket, and a display array is fixedly connected to the support frame.
[0006] An air cylinder tube is fixedly connected to the support frame, an air float support is fixedly connected to the air cylinder tube, an air float is installed on the air float support, a first air inlet pipe is fixedly connected to the bottom of the air cylinder tube, a solenoid valve is installed on the first air inlet pipe, the first air inlet pipe is connected to a blower, and a set of orthogonally placed two-dimensional photoelectric sensors are installed on the support frame.
[0007] Furthermore, a first air inlet tube is fixedly connected inside the air float support, a plurality of first air blowing hoods are fixedly connected to the first air inlet tube, a second air inlet pipe is fixedly connected to the outer surface of the first air inlet tube, an electromagnetic valve is provided on the second air inlet pipe, and the second air inlet pipe is connected to a blower.
[0008] Furthermore, an adjusting column is slidably connected to the air float support. A telescopic drive component is fixedly connected to the top of the adjusting column via a connecting block. A mounting ring is fixedly connected to the bottom of the adjusting column. Multiple transmission plates are slidably connected to the mounting ring. Multiple second air blowing hoods are fixedly connected to the bottom of the transmission plates. An air supply mechanism connected to the air float support is fixedly connected to the outer surface of the second air blowing hood via a hose. A transmission mechanism connected to the mounting ring is driven to the outer surface of the transmission plate. The transmission mechanism is used to drive the transmission plate to move.
[0009] Furthermore, the air supply mechanism includes a second air inlet ring tube fixedly connected to the air float bracket. The outer surface of the second air inlet ring tube is fixedly connected to the second air blowing hood via a hose. A third air inlet pipe is fixedly connected to the outer surface of the second air inlet ring tube. An electromagnetic valve is provided on the third air inlet pipe. The third air inlet pipe is connected to a blower.
[0010] Furthermore, the transmission mechanism includes a functional groove on the mounting ring, a transmission gear ring rotatably connected in the functional groove, a transmission gear rotatably connected to the functional groove on the inner surface of the transmission gear ring, a transmission rack on the outer surface of the transmission gear, one side of the transmission rack being fixedly connected to a transmission plate, and a drive mechanism connected to the functional groove being throttlely connected to the inner surface of the transmission gear ring, the drive mechanism being used to drive the transmission gear ring to rotate.
[0011] Furthermore, the driving mechanism includes a rotating driving component fixedly connected to the functional slot, the output end of the rotating driving component is fixedly connected to a driving shaft, and the outer surface of the driving shaft is fixedly sleeved with a driving gear that meshes with a transmission gear ring.
[0012] Secondly, this application also provides a VR air-bearing ball behavior training method, including:
[0013] The real-time displacement data of the air-floating ball is collected by a set of orthogonally placed two-dimensional photoelectric sensors. The displacement data includes the lateral displacement recorded by the bottom sensor and the directional displacement recorded by the equatorial plane sensor.
[0014] Based on the lateral and directional displacements, kinematic calculations are performed using the air-bearing ball radius and preset conversion scalars to generate translational and yaw angle parameters in the virtual environment. These parameters are then transmitted to a head-mounted VR display and a display array to drive synchronous updates of the virtual scene, ensuring that the changes in the virtual scene's viewpoint match the air-bearing ball's motion state.
[0015] The air flow rate is adjusted by electromagnetic valves on the first, second, and third air intake pipes. The rotation damping of the air float is changed according to the terrain features in the virtual scene, and a multimodal feedback signal corresponding to the virtual terrain is generated.
[0016] The mouse's position in the virtual scene is determined based on the real-time displacement data continuously collected by the two-dimensional photoelectric sensor. When the position reaches the preset target area, the air supply mechanism is controlled to output a specific airflow through the second air blowing hood, or the external reward device is controlled to release a reward, forming a behavioral reinforcement signal.
[0017] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the above-described VR air-bearing ball behavior training method.
[0018] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described VR air-bearing ball behavior training method.
[0019] Compared with existing technologies, the present invention provides a VR air-floating ball behavior training device and method.
[0020] (1) A series of ingenious designs greatly improve the measurement accuracy and stability. On the one hand, a first air inlet ring and multiple first air blowing hoods are set in the air float support. Air is supplied by a blower through the second air inlet pipe, and the air flow is precisely controlled by an electromagnetic valve. This allows the first air blowing hoods to blow air evenly on the surface around the air float, keeping the air float stable in the horizontal direction and preventing excessive deviation. This avoids the photoelectric sensor from recording the movement of the air float with reduced accuracy due to the positional deviation of the air float, which would affect the subsequent calculation results. On the other hand, for mice of different weights, when a larger air flow is required for heavier mice, the telescopic drive component moves the mounting ring, transmission plate, and second air blowing hood up and down. At the same time, the transmission mechanism moves the transmission plate horizontally, adjusting the second air blowing hood to a suitable position to supply air, so that the air float is stably suspended, further improving the measurement stability and achieving accurate measurement of mice of different weights.
[0021] (2) The design of this device significantly enhances its applicability and optimizes animal training effects. In terms of applicability, the device can be flexibly adjusted for mice of different weights. For heavier mice, when a larger airflow is supplied through the first air inlet, adjusting the position of the second air hood prevents airflow turbulence on the surface of the air-floating ball, ensuring stable suspension and meeting the needs of mice of different weights for stable movement on the air-floating ball, thus expanding the device's applicability. Regarding animal training effects, the air-floating ball acts as an air bearing, allowing the mouse to move stably on it, while the treadmill provides micro-damping, enabling the animal to achieve continuous running at a near-natural gait frequency. This near-natural training method more realistically simulates the movement of mice in their natural environment, helping to more accurately study mouse behavior patterns and motor abilities, and providing more reliable data support for related scientific research. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0023] Figure 1 This is a perspective view of the external structure of the present invention;
[0024] Figure 2 This is a partial three-dimensional view of the structure of the present invention;
[0025] Figure 3 This is a first front view of the internal structure of the air cylinder, air float support, and air float of the present invention.
[0026] Figure 4 This is a second front view of the internal structure of the air cylinder, air float support, and air float of the present invention;
[0027] Figure 5 This is a third front view of the internal structure of the air cylinder, air float support, and air float of the present invention;
[0028] Figure 6 This is a top view of the internal structure of the mounting ring of the present invention;
[0029] Figure 7 For the present invention Figure 5 Enlarged view of A in the middle;
[0030] Figure 8 For the present invention Figure 6 A magnified view of B in the middle.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Mobile platform; 2. Support frame; 3. Headrest bracket; 4. Head-mounted VR display; 5. Display array; 6. Air cylinder tube; 7. Air float bracket; 8. Air float; 9. First air inlet pipe; 11. First air inlet ring tube; 12. First air blowing hood; 13. Second air inlet pipe; 21. Adjustment column; 22. Telescopic drive component; 23. Mounting ring; 24. Transmission plate; 25. Second air blowing hood; 31. Second air inlet ring tube; 32. Third air inlet pipe; 41. Functional slot; 42. Transmission gear ring; 43. Transmission gear; 44. Transmission rack; 51. Rotation drive component; 52. Drive shaft; 53. Drive gear. Detailed Implementation
[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0034] Example 1
[0035] Please see Figures 1 to 8 As shown, a VR air-floating ball behavior training device includes a mobile platform 1 and a support frame 2. A head fixing bracket 3 is provided on the mobile platform 1, a head-mounted VR display 4 is provided on the head fixing bracket 3, and a display array 5 is fixedly connected to the support frame 2.
[0036] An air cylinder pipe 6 is fixedly connected to the support frame 2, an air float support 7 is fixedly connected to the air cylinder pipe 6, an air float 8 is set on the air float support 7, a first air inlet pipe 9 is fixedly connected to the bottom of the air cylinder pipe 6, a solenoid valve is set on the first air inlet pipe 9, the first air inlet pipe 9 is connected to a blower, and a set of orthogonally placed two-dimensional photoelectric sensors are set on the support frame 2. The motion data is accurately captured by a set of orthogonally placed (preferably, one is placed at the bottom and one at the equatorial plane) two-dimensional photoelectric sensors.
[0037] By fixing the VR head-mounted display 4 on the fixed bracket to the mouse's head, a small ball is placed on the air-float ball bracket 7. At the same time, a blower blows air into the first air intake pipe 9. The solenoid valve on the first air intake pipe 9 controls the air intake volume of the first air intake pipe 9. Then, the first air intake pipe 9 introduces air into the air cylinder pipe 6. The air cylinder pipe 6 then blows air onto the air-float ball 8 on the air-float ball bracket 7, causing the air-float ball 8 to float. At the same time, through the control of the solenoid valve, the buoyancy of the blowing air, the weight of the mouse, and the weight of the air-float ball 8 itself are balanced, so that the air-float ball 8 forms an air bearing. This allows the mouse to move on the air-float ball 8 while driving the air-float ball 8 to move stably. At the same time, the treadmill is slightly damped, and the animal can achieve continuous running at a near-natural gait frequency. Then, the movement of the air-float ball 8 is recorded by a photoelectric sensor, thereby recording the movement of the mouse.
[0038] Example 2
[0039] Please see Figure 4 As shown, this embodiment provides a technical solution based on Embodiment 1:
[0040] A first air inlet tube 11 is fixedly connected inside the air float support 7. Multiple first air blowing hoods 12 are fixedly connected to the first air inlet tube 11. A second air inlet tube 13 is fixedly connected to the outer surface of the first air inlet tube 11. An electromagnetic valve is installed on the second air inlet tube 13. The second air inlet tube 13 is connected to a blower.
[0041] Based on Embodiment 1, a blower blows air into the second air intake pipe 13, and then the air flow rate of the second air intake pipe 13 is controlled by an electromagnetic valve on the second air intake pipe 13. Subsequently, the gas enters the first air intake ring pipe 11, and then the first air intake ring pipe 11 blows air evenly onto the surface around the air float 8 through multiple first air blowing hoods 12 on its inner surface, so that the air float 8 maintains a certain stability in the horizontal direction and prevents the air float 8 from deviating too much in the horizontal direction. If the photoelectric sensor records the movement of the air float 8 with poor accuracy, it will affect the subsequent calculation results.
[0042] Example 3
[0043] Please see Figures 5 to 8 As shown, this embodiment provides a technical solution based on Embodiment 1 and Embodiment 2: An adjusting column 21 is slidably connected to the air float support 7. The top of the adjusting column 21 is fixedly connected to a telescopic drive component 22 via a connecting block. The telescopic drive component 22 is an electric telescopic rod. An installation ring 23 is fixedly connected to the bottom of the adjusting column 21. Multiple transmission plates 24 are slidably connected to the installation ring 23. Multiple second air blowing covers 25 are fixedly connected to the bottom of the transmission plates 24. An air supply mechanism connected to the air float support 7 is fixedly connected to the outer surface of the second air blowing covers 25 via a hose. A transmission mechanism connected to the installation ring 23 is driven to the outer surface of the transmission plates 24. The transmission mechanism is used to drive the transmission plates 24 to move.
[0044] The air supply mechanism includes a second air inlet pipe 31 fixedly connected to the air float support 7. The outer surface of the second air inlet pipe 31 is fixedly connected to the second air blowing hood 25 through a hose. A third air inlet pipe 32 is fixedly connected to the outer surface of the second air inlet pipe 31. An electromagnetic valve is installed on the third air inlet pipe 32. The third air inlet pipe 32 is connected to a blower. The blower supplies air to the third air inlet pipe 32, and the electromagnetic valve on the third air inlet pipe 32 controls the air flow rate.
[0045] The transmission mechanism includes a functional slot 41 on the mounting ring 23. A transmission gear ring 42 is rotatably connected in the functional slot 41. A transmission gear 43, which is rotatably connected to the functional slot 41, is meshed on the inner surface of the transmission gear ring 42. A transmission rack 44 is meshed on the outer surface of the transmission gear 43. One side of the transmission rack 44 is fixedly connected to the transmission plate 24. A drive mechanism connected to the functional slot 41 is throttle connected to the inner surface of the transmission gear ring 42. The drive mechanism is used to drive the transmission gear ring 42 to rotate. The drive mechanism includes a rotation drive component 51, which is fixedly connected to the functional slot 41. The rotation drive component 51 is a servo motor. The servo motor is controlled by a PLC programming program, which can control the servo motor to rotate in both directions and rotate at different angles. The output end of the rotation drive component 51 is fixedly connected to the drive shaft 52. The outer surface of the drive shaft 52 is fixedly sleeved with a drive gear 53 that meshes with the transmission gear ring 42. The rotation drive component 51 drives the drive shaft 52 to rotate, and the drive shaft 52 drives the transmission gear ring 42 to rotate through the drive gear 53. The transmission gear ring 42 drives the transmission gear 43 to rotate, and the transmission gear 43 drives the transmission rack 44 to move. The transmission rack 44 drives the transmission plate 24 to move.
[0046] When some mice are heavier, the first air intake pipe 9 needs to supply a larger airflow. This larger airflow creates a higher velocity on the upper surface of the air float 8. At this time, the airflow blown downwards by the second air blowing hood 25 is countered by the upward airflow, causing turbulence on the surface of the air float 8. This causes the air float 8 to vibrate back and forth in the horizontal direction, making it difficult for the mice to move stably on the air float 8. At this time, the telescopic drive 22 drives the mounting ring 23 to move up and down. The mounting ring 23 drives the transmission plate 24 and multiple second air blowing hoods 25 to move up and down. At the same time, the transmission mechanism drives multiple transmission plates 24 to move horizontally. The transmission plates 24 drive the second air blowing hoods 25 to move horizontally, adjusting the multiple second air blowing hoods 25 to a suitable and stable blowing position. Then, the air supply mechanism supplies air to the second air blowing hoods 25, so that the air float 8 is stably suspended in the air float support 7, further improving the stability of subsequent measurements. This allows the device to accurately measure mice of different weights, further improving the applicability of the device.
[0047] Working principle: In use, the VR head-mounted display 4 on the fixed bracket is fixed to the mouse's head. Then, the small ball is placed on the air-float ball bracket 7. At the same time, the blower blows air into the first air intake pipe 9. The solenoid valve on the first air intake pipe 9 controls the air intake volume of the first air intake pipe 9. Then, the first air intake pipe 9 introduces air into the air cylinder pipe 6. The air cylinder pipe 6 then blows air onto the air-float ball 8 on the air-float ball bracket 7, causing the air-float ball 8 to float. At the same time, the solenoid valve controls the buoyancy of the blowing air, the weight of the mouse, and the weight of the air-float ball 8 itself to balance, so that the air-float ball 8 forms an air bearing. This allows the mouse to move on the air-float ball 8 while driving the air-float ball 8 to move stably. At the same time, the treadmill is slightly damped, and the animal can run continuously at a near-natural gait frequency. Then, the movement of the air-float ball 8 is recorded by the photoelectric sensor, thereby recording the movement of the mouse.
[0048] Based on the same inventive concept, this application also provides a VR air-bearing ball behavior training method for implementing the VR air-bearing ball behavior training device described above. The solution provided by this method is similar to the implementation scheme described in the above system. Therefore, the specific limitations in one or more VR air-bearing ball behavior training method embodiments provided below can be found in the limitations of the VR air-bearing ball behavior training device described above, and will not be repeated here.
[0049] Example 4
[0050] Please see Figures 1 to 7 As shown, this embodiment provides a VR air-bearing ball behavior training method, including the following steps:
[0051] Real-time displacement data of the air-floating ball 8 is collected by a set of orthogonally placed two-dimensional photoelectric sensors. The displacement data includes the lateral displacement recorded by the bottom sensor and the directional displacement recorded by the equatorial surface sensor.
[0052] Specifically, the bottom sensor is installed directly below the air-float 8, which can capture the forward and backward, left and right movement distance of the air-float 8 on the horizontal plane in real time when the mouse runs; the equatorial plane sensor is set around the middle of the air-float 8, which can sense the circumferential rotational displacement of the air-float 8 caused by the mouse's turning action. For example, when the mouse runs forward on the air-float 8, the bottom sensor will record the corresponding forward lateral displacement; when the mouse turns its head to the left, the equatorial plane sensor will capture the corresponding leftward turning displacement of the air-float 8. This data will serve as the basic input for subsequent virtual environment mapping, ensuring accurate capture of the mouse's movement state.
[0053] Based on lateral and directional displacements, kinematic calculations are performed using the radius of the air-bearing ball 8 and preset conversion scalars to generate translational and yaw angle parameters in the virtual environment. These parameters are then transmitted to the head-mounted VR display 4 and the display array 5 to drive synchronous updates of the virtual scene, ensuring that the changes in the virtual scene's viewpoint match the motion state of the air-bearing ball 8.
[0054] Specifically, for lateral displacement, the actual displacement is converted into coordinate increments in the virtual environment using a preset conversion scalar. For example, every 1 mm increase in lateral displacement corresponds to a forward movement of 10 coordinate units in the virtual scene. For directional displacement, the arc length of the directional displacement is converted into an angle value, i.e., the yaw angle parameter, using the radius of the air buoy. For example, when the arc length corresponding to the directional displacement is 2 mm and the air buoy radius is 50 mm, the yaw angle parameter can be calculated as 2.29 degrees. After calculation, these parameters are sent to the display device in real time. The head-mounted VR display 4 adjusts the screen orientation according to the yaw angle parameter, while the display array 5 updates the scene content according to the translation parameter. For example, when the mouse runs forward, the path in front of it in the virtual scene will unfold synchronously, realizing real-time linkage between motion and vision.
[0055] The air flow rate is adjusted by electromagnetic valves on the first air intake pipe 9, the second air intake pipe 13 and the third air intake pipe 32, the rotation damping of the air float 8 is changed according to the terrain features in the virtual scene, and a multimodal feedback signal corresponding to the virtual terrain is generated.
[0056] For example, the multimodal feedback signals include force feedback, olfactory feedback, visual feedback, and auditory feedback. Force feedback can be achieved through airflow regulation. When the virtual scene simulates flat ground, the electromagnetic valve controls the output of a stable basic airflow through each air intake pipe, keeping the air float 8 in a low-damping state, so that the mouse runs with almost no additional resistance. When simulating sand, the electromagnetic valve of the first air intake pipe 9 reduces its opening to decrease the airflow at the bottom, while the second air intake pipe 13 increases the airflow to enhance horizontal constraint, increasing the rotational resistance of the air float, so that the mouse needs to exert more force to push the ball. When simulating an uphill slope, the third air intake pipe 32 adjusts the airflow direction and intensity of the second air blower 25 through the electromagnetic valve to form directional resistance, allowing the mouse to feel force feedback similar to that of going uphill. Through this dynamic adjustment of airflow, the mouse can perceive the differences in virtual terrain through touch, enhancing the immersion of training. For example, olfactory feedback can be linked to terrain features. In the "flower field area" of the virtual scene, the odor release device (a fragrance storage tank connected to the third air intake pipe 32) opens the fragrance channel through a solenoid valve, and the fragrance diffuses to the tip of the mouse's nose with the airflow. When entering the "sewage area", the device switches to release a small amount of irritating odor, which, in conjunction with the high damping characteristics of force feedback, enhances scene recognition. For example, auditory feedback can simulate scene soundscape through an audio generator, and visual feedback can be achieved through various means such as a head-mounted VR display 4, a display screen, or a projector. Multimodal feedback is not limited to the independent superposition of each modality. A synergistic effect is formed through the logic of "scene triggering - parameter linkage - sensory complementarity" to ensure that the mouse can accurately perceive the state of the virtual scene through multiple sensory channels. No specific limitations are made here.
[0057] The mouse's position in the virtual scene is determined by real-time displacement data continuously collected by a two-dimensional photoelectric sensor. When the position reaches the preset target area, the air supply mechanism is controlled to output a specific airflow through the second air blowing hood 25, or the external reward device is controlled to release a reward, forming a behavioral reinforcement signal.
[0058] For example, when the virtual location corresponding to the real-time displacement data shows that the mouse has reached the food marker in the virtual scene, the air supply mechanism can output a gentle airflow through the second air blower 25 as a prompt, while the external reward device (such as a miniature water pump) releases a small amount of water as a reward; if the mouse enters a dangerous area in the virtual scene, the second air blower 25 outputs a stronger airflow as a warning. This location-based real-time feedback can guide the mouse to form behavioral memories of specific virtual scenes during training, thereby improving the training effect.
[0059] The above embodiments achieve precise linkage between movement and virtual scene based on scene task-based trajectory mapping, viewport matching and feedback control, and preset rules. This not only ensures the repeatability of behavioral training, but also improves training efficiency through task-oriented feedback mechanism, which is more in line with the controllability and targeting needs of animal behavior research.
[0060] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A VR air-floating ball behavior training device, characterized in that, include: A mobile platform (1) and a support frame (2), wherein a head fixing bracket (3) is provided on the mobile platform (1), a head-mounted VR display (4) is provided on the head fixing bracket (3), and a display array (5) is fixedly connected to the support frame (2). An air cylinder pipe (6) is fixedly connected to the support frame (2), an air float support (7) is fixedly connected to the air cylinder pipe (6), an air float (8) is provided on the air float support (7), a first air inlet pipe (9) is fixedly connected to the bottom of the air cylinder pipe (6), an electromagnetic valve is provided on the first air inlet pipe (9), the first air inlet pipe (9) is connected to a blower, and a set of orthogonally placed two-dimensional photoelectric sensors are provided on the support frame (2). The air float support (7) is fixedly connected to a first air inlet tube (11), and a plurality of first air blowing hoods (12) are fixedly connected to the first air inlet tube (11). A second air inlet tube (13) is fixedly connected to the outer surface of the first air inlet tube (11). An electromagnetic valve is provided on the second air inlet tube (13), and the second air inlet tube (13) is connected to a blower. An adjusting column (21) is slidably connected to the air float support (7). A telescopic drive component (22) is fixedly connected to the top of the adjusting column (21) via a connecting block. An installation ring (23) is fixedly connected to the bottom of the adjusting column (21). Multiple transmission plates (24) are slidably connected to the installation ring (23). Multiple second air blowing hoods (25) are fixedly connected to the bottom of the transmission plate (24). An air supply mechanism connected to the air float support (7) is fixedly connected to the outer surface of the second air blowing hood (25) via a hose. A transmission mechanism connected to the installation ring (23) is driven to the outer surface of the transmission plate (24). The transmission mechanism is used to drive the transmission plate (24) to move. The air supply mechanism includes a second air inlet pipe (31) fixedly connected to the air float support (7). The outer surface of the second air inlet pipe (31) is fixedly connected to the second air blowing hood (25) through a hose. A third air inlet pipe (32) is fixedly connected to the outer surface of the second air inlet pipe (31). An electromagnetic valve is provided on the third air inlet pipe (32). The third air inlet pipe (32) is connected to a blower. The transmission mechanism includes a functional groove (41) opened on the mounting ring (23). A transmission gear ring (42) is rotatably connected in the functional groove (41). A transmission gear (43) rotatably connected to the functional groove (41) is meshed on the inner surface of the transmission gear ring (42). A transmission rack (44) is meshed on the outer surface of the transmission gear (43). One side of the transmission rack (44) is fixedly connected to the transmission plate (24). A drive mechanism connected to the functional groove (41) is throttle connected to the inner surface of the transmission gear ring (42). The drive mechanism is used to drive the transmission gear ring (42) to rotate.
2. The VR air-floating ball behavior training device according to claim 1, characterized in that, The drive mechanism includes a rotating drive component (51) fixedly connected to the functional slot (41), and a drive shaft (52) fixedly connected to the output end of the rotating drive component (51). A drive gear (53) that meshes with the transmission gear ring (42) is fixedly sleeved on the outer surface of the drive shaft (52).
3. A VR air-floating ball behavior training method, characterized in that, The method applied to the VR air-floating ball behavior training device according to any one of claims 1 to 2, the method comprising: Real-time displacement data of the air-floating ball (8) is collected by a set of orthogonally placed two-dimensional photoelectric sensors. The real-time displacement data includes the lateral displacement recorded by the bottom sensor and the directional displacement recorded by the equatorial surface sensor. Based on the lateral displacement and steering displacement, kinematic calculations are performed using the radius of the air-floating ball (8) and preset conversion scalars to generate translation parameters and yaw angle parameters in the virtual environment; the translation parameters and yaw angle parameters are transmitted to the head-mounted VR display (4) and the display array (5) to drive the virtual scene to update synchronously, so that the viewpoint change of the virtual scene matches the motion state of the air-floating ball (8); The air flow rate is adjusted by the electromagnetic valves on the first air intake pipe (9), the second air intake pipe (13) and the third air intake pipe (32), and the rotation damping of the air float (8) is changed according to the terrain features in the virtual scene to generate a force feedback signal corresponding to the virtual terrain. The mouse's position in the virtual scene is determined based on the real-time displacement data continuously collected by the two-dimensional photoelectric sensor. When the position reaches the preset target area, the air supply mechanism is controlled to output a specific airflow through the second air blowing hood (25), or the external reward device is controlled to release a reward to form a behavior reinforcement signal.
4. A VR air-floating ball behavior training system, characterized in that, The system applied to the VR air-floating ball behavior training method of claim 3 above includes: The motion data acquisition module is used to acquire real-time displacement data of the air-floating ball (8) through a set of orthogonally placed two-dimensional photoelectric sensors. The real-time displacement data includes the lateral displacement recorded by the bottom sensor and the turning displacement recorded by the equatorial plane sensor. The virtual parameter generation and scene driving module is used to perform kinematic calculations based on the lateral displacement and steering displacement, combined with the radius of the air-floating ball (8) and the preset conversion scalar, to generate translation parameters and yaw angle parameters in the virtual environment; and to transmit the translation parameters and yaw angle parameters to the head-mounted VR display (4) and the display array (5) to drive the virtual scene to update synchronously, so that the viewpoint change of the virtual scene matches the motion state of the air-floating ball (8); The force feedback adjustment module is used to adjust the air flow rate through the electromagnetic valves on the first air intake pipe (9), the second air intake pipe (13) and the third air intake pipe (32), and to change the rotation damping of the air float (8) according to the terrain features in the virtual scene, thereby generating a force feedback signal corresponding to the virtual terrain. The behavior reinforcement control module is used to determine the position of the mouse in the virtual scene based on the real-time displacement data continuously collected by the two-dimensional photoelectric sensor. When the position reaches the preset target area, the module controls the air supply mechanism to output a specific airflow through the second air blowing hood (25), or controls the external reward device to release a reward, thereby forming a behavior reinforcement signal.
5. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, The processor executes the computer program to implement the method of claim 3.
6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method of claim 3.
Citation Information
Patent Citations
Animal behavior training device before magnetic resonance imaging based on air floating ball
CN120113607A
Virtual reality simulator and method for small laboratory animals
US20220295743A1