Gaze stability training system and control method

Abstract

The present invention discloses a gaze stability training system and control method. The system is used to implement the control method. The training system includes: a display component for forming a visible target within the field of view; a head-mounted controller including a head motion sensor and a microprocessor; the head motion sensor is connected to the microprocessor and is used to collect user head movement information. The target can be moved according to preset speeds and angles, or the user's head movement information can be collected in real time and moved accordingly. This system replaces manual assisted training, has a simple structure, and quantitatively controls the target, making it scientific and effective.

Description

Technical Field

[0001] The present invention relates to the technical field of vestibular training, and in particular to a gaze stability training system and a control method. Background Art

[0002] Human balance is primarily achieved through the integration of proprioception, vision, and vestibular senses in the brain. Problems with any of these senses, or imbalances in the integration process, can lead to balance disorders. Vestibular rehabilitation training targets these three senses and their integration, achieving a balanced integration of these three senses and central nervous system functions.

[0003] Vestibular rehabilitation training includes three methods: adaptation, substitution, and habituation. Clinically, adaptation is often the primary approach. Adaptation involves training patients with specific head or eye movement patterns to improve their residual function, achieve adaptation to stimuli, and thus alleviate dizziness or vertigo symptoms. Common adaptations include the following types of gaze stability training: The first, corresponding to Figure 1(a), involves holding a target approximately 90 cm in front of the eyes while the head moves side to side or up and down at a specific frequency, keeping the eyes fixed on the fixed target. The second, Figure 1(a), involves moving the head to one side while the target moves in the opposite direction at the same rate and amplitude, keeping the eyes fixed on the fixed target. The third, involves synchronizing the target with the head while the target moves side to side, keeping the eyes fixed on the target. The fourth, while the head remains stationary, the target moves side to side while the target moves side to side, keeping the eyes fixed on the target. These types of training require different head movement speed, acceleration, amplitude, and frequency, depending on the patient's condition.

[0004] Current methods for gaze stability training are still at the traditional manual-assisted training stage. Typically, in hospitals or rehabilitation centers, patients hold a visual target and move it in front of their eyes. Patients perform head and eye movements according to medical prompts. This manual-assisted training method has significant drawbacks: first, moving the visual target results in large subjective errors, resulting in poor rehabilitation outcomes; second, the results and effectiveness of rehabilitation training cannot be quantified, making it difficult for patients to adhere to the training; and third, patients require medical assistance to ensure optimal training outcomes. Summary of the Invention

[0005] Therefore, the purpose of the present invention is to provide a gaze stability training system and control method, which can move the visual target according to a preset speed and angle, and can also collect the user's head movement information in real time and move the visual target according to the head movement information; it replaces manual assisted training, has a simple structure, and quantitatively controls the visual target, making the training process more scientific and effective.

[0006] In order to achieve the above objectives, the present invention provides a gaze stability training system, comprising:

[0007] A display component, used for forming a target visible to the naked eye within a field of view;

[0008] The head-mounted controller includes a head motion sensor and a microprocessor; the head motion sensor is connected to the microprocessor and is used to collect user head movement information; the microprocessor is connected to the display component and is used to adjust the visual target position according to the user's head movement information.

[0009] Further preferably, the display component includes an optomechanical component, which includes a light source module and a deflection module connected to the light source module; the light source module is used to emit visible light to form a visual target; and the deflection module is used to adjust the emission angle of the visible light.

[0010] Further preferably, the microprocessor is connected to the deflection module, and is used to control the action of the deflection module to adjust the angle of the emitted light of the light source module.

[0011] The deflection module includes a rotating mirror and a first motor that drives the rotating mirror to rotate; the rotating mirror is connected to the first motor; the optical axis of the light source module is coaxial or parallel to the rotating axis of the rotating mirror, and the reflecting surface of the rotating mirror forms an angle of 45 degrees with the optical axis direction of the light source module.

[0012] The deflection module includes a second motor; the light source module is connected to the power output end of the second motor, and the second motor directly or indirectly drives the deflection angle of the light source module.

[0013] Further preferably, the display mode of the visual target formed by the display component includes at least one of the following modes:

[0014] Mode 1: Adjust the position of the visual target according to the first angle of the user's head deflection so that the visual target is always in the first position;

[0015] Mode 2: Adjust the position of the visual target according to the first angle of the user's head deflection, so that the visual target is deflected in the same direction as the user's head deflection by a second angle and moves to a second position;

[0016] Mode 3: adjusting the position of the visual target according to the first angle of the user's head deflection, so that the visual target is deflected by a third angle in the opposite direction of the user's head deflection direction and moves to a third position.

[0017] Further preferably, the target deflection angle is calculated using the following formula:

[0018] θ=I*gain*θ gyro

[0019] Where I is the target motion coefficient corresponding to the target display mode, which takes the value of 0, 1 or -1; gain is the gain value, and gain>0; θ gyro is the head deflection angle.

[0020] Further preferably, the display mode of the display component forming the visual target includes:

[0021] Mode 4: After the target position is initialized, the target moves back and forth according to the input or preset amplitude and frequency, that is, the target deflects the fourth angle to move to the fourth position, moves to the initial first position, and deflects the fifth angle to move to the fifth position.

[0022] Further preferably, when the visual target reciprocates according to the input or preset amplitude and frequency, the motion pattern of the input or preset amplitude and frequency includes a sinusoidal simple harmonic motion pattern, a square wave motion pattern or a triangle wave motion pattern.

[0023] Further preferably, the optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly forms a limiting portion at one end to limit the stroke of the rotating assembly;

[0024] The microprocessor further includes an initialization adjustment module, which is used to control the driving component to drive the rotating component to rotate forward toward the limiting portion until it is blocked by the limiting portion and then rotate in the reverse direction by a preset angle.

[0025] Further preferably, the optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly is respectively formed with a first limiting portion and a second limiting portion at two ends thereof to limit the stroke of the rotating assembly;

[0026] The microprocessor also includes an initialization adjustment module, which is used to control the driving component to drive the rotating component to rotate forward toward the first limit part until it is blocked by the first limit part, and then rotate in the opposite direction until it is blocked by the second limit part, detect the rotation angle α between the two blockings, and then rotate forward by an angle of α / 2.

[0027] Further preferably, the head-mounted controller further comprises an input / output module for acquiring user input information and outputting feedback information to the user. The input / output module comprises a sensor carpet for sensing foot movement, and the sensor carpet is connected to the head-mounted controller.

[0028] The optical system further comprises a first bracket rotatably connected to the optical-mechanical assembly for adjusting the optical axis swing plane of the light source module and a second bracket rotatably connected to the first bracket for adjusting the optical axis swing plane of the light source module.

[0029] The present invention also provides a control method for a gaze stability training system, comprising:

[0030] The display component forms a target visible to the naked eye within the field of view;

[0031] The head-mounted controller collects the user's head information and adjusts the position of the visual target according to the user's head movement information.

[0032] Further preferably, the display mode of the visual target includes at least one of the following modes:

[0033] Mode 1: Adjust the position of the visual target according to the first angle of the user's head deflection so that the visual target is always in the first position;

[0034] Mode 2: Adjust the position of the visual target according to the first angle of the user's head deflection, so that the visual target is deflected in the same direction as the user's head deflection by a second angle and moves to a second position;

[0035] Mode 3: adjusting the position of the visual target according to the first angle of the user's head deflection, so that the visual target is deflected by a third angle in the opposite direction of the user's head deflection direction and moves to a third position.

[0036] Further preferably, the target deflection angle is calculated using the following formula:

[0037] θ=I*gain*θ gyro

[0038] Where I is the target motion coefficient corresponding to the target display mode, which takes the value of 0, 1 or -1; gain is the gain value, and gain>0; θ gyro is the head deflection angle.

[0039] Further preferably, the display modes of the visual target include:

[0040] Mode 4: After the target position is initialized, the target moves back and forth according to the input or preset amplitude and frequency, that is, the target deflects the fourth angle to move to the fourth position, moves to the initial first position, and deflects the fifth angle to move to the fifth position.

[0041] Further preferably, when the visual target reciprocates according to the input or preset amplitude and frequency, the motion pattern of the input or preset amplitude and frequency includes a sinusoidal simple harmonic motion pattern, a square wave motion pattern or a triangle wave motion pattern.

[0042] Further preferably, the method further includes a step of initializing the visual target position, which is achieved by an optical-mechanical assembly in the display assembly, wherein the optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly has a limiting portion formed at one end to limit the travel of the rotating assembly;

[0043] The step of initializing the sight target position comprises:

[0044] The control driving assembly drives the rotating assembly to rotate in the forward direction toward the limiting portion until it is blocked by the limiting portion and then rotates in the reverse direction by a preset angle.

[0045] Further preferably, the method further includes a step of initializing the visual target position, which is implemented by an optical-mechanical assembly in the display assembly, wherein the optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly is respectively formed with a first limiting portion and a second limiting portion at two ends thereof to limit the travel of the rotating assembly;

[0046] The step of initializing the sight target position comprises:

[0047] The control driving assembly drives the rotating assembly to rotate forward toward the first limit portion until it is blocked by the first limit portion, and then rotate in the opposite direction until it is blocked by the second limit portion, detect the rotation angle α between the two blockings, and then rotate forward by an angle of α / 2.

[0048] The gaze stability training system and control method disclosed in this application have at least the following advantages over the prior art:

[0049] 1. The gaze stability training system and control method of the present application can collect the patient's head posture data and provide a movable visual target. By collecting the patient's head posture data while looking at the visual target during training, it is convenient to use the head posture data for quantitative analysis, making the training process more scientific and effective; ultimately helping patients improve their vestibular function and enhance their balance ability.

[0050] 2. The gaze stability training system and control method of the present application can adjust the target position according to the head posture data, and calculate the head deflection angle and speed of the collected head posture data to adjust the target position accordingly; the target parameters can be set quantifiably, and the target position setting is more objective and scientific, avoiding the influence of human subjective factors, and avoiding the influence of the target position setting not meeting the standards on the training effect;.

[0051] 3. The gaze stability training system and control method of the present application, the optical-mechanical component realizes the movement of the visual target by controlling the deflection of the light source reflector, has a simple and compact structure, low cost, and is suitable for promotion and use in home rehabilitation training; the design of the rotation adjustment of the optical-mechanical component and the first bracket, as well as the design of the rotation structure of the first bracket and the second bracket, has a simple structure, and can conveniently realize the switching of the visual target movement plane, meet the gaze stability training needs in different directions, and can correct the deviation of the visual target movement plane caused by different individual physiological parameters.

[0052] 4. The gaze stability training system and control method of the present application are equipped with multiple modes according to head movement information. According to the preset mode, the deflection angle of the visual target is calculated and the movement of the visual target is precisely controlled. Compared with manual control of the visual target, the system has a high degree of automation and can meet the needs of refined management of visual target control. It can be generally applied to patients at any stage for different levels of rehabilitation training. By switching between different modes, the testing needs of different users can be further met.

[0053] 5. The gaze stability training system and control method provided in this application output prompt information during training to urge patients to perform standardized training and ensure the effectiveness of the training process. It also outputs feedback information to scientifically evaluate the results of the patient's gaze training, allowing patients to adjust their training plans based on the training results, enabling patients to conduct more scientific and efficient independent gaze stability training.

[0054] 6. The gaze stability training system and control method provided in this application can store the user's training records, providing data basis for clinicians to review the rehabilitation training effect and formulate the next training plan. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] FIG1( a ) shows a training mode in the prior art mentioned in the background technology of this application.

[0056] FIG1( b ) shows another training mode in the prior art mentioned in the background of this application.

[0057] Figure 2 Shown is a schematic diagram of a gaze stability training system provided by the present application.

[0058] Figure 3 Shown is a side sectional view of the gaze stability training system provided by the present application.

[0059] Figure 4 Shown is a front view of the internal structure of the gaze stability training system provided by this application.

[0060] Figure 5 Shown is a transverse cross-sectional view of the gaze stability training system provided by the present application.

[0061] Figure 6 Shown is a structural schematic diagram of another embodiment of the gaze stability training system provided by the present application.

[0062] Figure 7 Shown is a schematic diagram of display component mode 1 of a gaze stability training system provided by another embodiment of the present application.

[0063] Figure 8 Shown is a schematic diagram of display component mode 2 of a gaze stability training system provided by another embodiment of the present application.

[0064] Figure 9 Shown is a schematic diagram of display component mode 3 of a gaze stability training system provided by another embodiment of the present application.

[0065] Figure 10 Shown is a schematic diagram of display component mode 4 of a gaze stability training system provided by another embodiment of the present application.

[0066] Figure 11 Shown is a flow chart of the gaze stability training method provided by this application.

[0067] Reference numerals:

[0068] 1- Optical mechanical assembly; 2- First bracket; 3- Second bracket; 101- Light source module; 102- Rotating mirror; 103- First motor; 104- Headset controller; 105- Second motor;

[0069] 001, initial head position; 011, first position; 012, second position; 013, third position; 014, fourth position; 015, fifth position; 021, first angle; 022, second angle; 023, third angle; 024, fourth angle; 025, fifth angle. DETAILED DESCRIPTION

[0070] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0071] like Figure 2 As shown, an embodiment of the present invention provides a display component for gaze stability training, the display component is an optical-mechanical component 1, and the optical-mechanical component 1 includes a light source module 101 and a deflection module; the light source module 101 is connected to the deflection module; the light source module 101 is used to emit visible light to form a visual target; the deflection module is used to adjust the emission angle of the visible light

[0072] like Figure 3-4 As shown, the deflection module includes a rotating mirror 102 and a first motor 103 for driving the rotating mirror 102 to rotate; the rotating mirror 102 is connected to the first motor 103; the optical axis of the light source module 101 is coaxial or parallel to the rotation axis of the rotating mirror 102, and the reflecting surface of the rotating mirror 102 is at an angle of 45 degrees to the optical axis direction of the light source module 101.

[0073] The rotating mirror 102 includes any one of the following forms: a plane reflector, a dielectric film reflector, a metal film reflector, and a molybdenum reflector.

[0074] The combination of the rotating mirror 102 and the motor further includes any one of the following integrated modules: a piezoelectric vibrating mirror, a micro vibrating mirror, a MEMS vibrating mirror, a scanning mirror, and a fast-reflecting mirror.

[0075] like Figure 6 As shown, in another embodiment of the present invention, the deflection module includes a second motor 105; the light source module 101 is connected to the power output end of the second motor 105, and the second motor 105 directly or indirectly drives the deflection angle of the light source module 101.

[0076] The gaze stability training optical-mechanical assembly 1 includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly. The limiting assembly can limit the stroke of the rotating assembly at least at one end.

[0077] The light source module 101 includes any one of the following devices: a laser, a laser pen, a semiconductor laser lamp or a visible light LED.

[0078] The optical system further comprises a first bracket 2, which is rotatably connected to the optical-mechanical assembly 1 and is used to adjust the optical axis swing plane of the light source module 101. When the optical-mechanical assembly 1 and bracket 2 are rotated 90 degrees, the visual target within the user's field of view is transformed to move in a vertical plane.

[0079] The second bracket 3 is further included. The second bracket 3 is rotatably connected to the first bracket 2 and is used to adjust the optical axis swing plane of the light source module 101 .

[0080] like Figure 5 As shown, the pitch angle between the first bracket 2 and the second bracket 3 is adjustable, and the second bracket 3 is used to connect elastic straps, hats, etc. for users to wear on their heads. When the first bracket 2 and the second bracket 3 rotate relative to each other around the hinge connection, the angle between the optical-mechanical assembly 1 and the user's line of sight is adjusted so that the target is projected at the center of the user's field of vision. The design of the rotation adjustment of the optical-mechanical assembly 1 and the first bracket 2 has a simple structure and can conveniently switch the target movement plane to meet the gaze stability training needs in different directions. The design of the hinge connection between the first bracket 2 and the second bracket 3 can flexibly adjust the pitch angle of the optical-mechanical assembly 1 to adapt to the differences in head shapes of different users.

[0081] The above embodiment further includes a head-mounted controller; the head-mounted controller includes a head motion sensor and a microprocessor; the head motion sensor is connected to the microprocessor; an optical-mechanical assembly is connected to the microprocessor; and the optical-mechanical assembly and the head-mounted controller are integrated into a single structure.

[0082] The present invention also provides a gaze stability training system, including the display component provided in the above embodiment, which is used to form a visual target visible to the naked eye within the field of view; a head-mounted controller, including a head motion sensor and a microprocessor; the head motion sensor is connected to the microprocessor and is used to collect user head movement information.

[0083] Furthermore, the microprocessor is connected to the display assembly and is used to adjust the position of the visual target according to the user's head movement information.

[0084] The display assembly includes an optomechanical assembly, which includes a light source module and a deflection module connected to the light source module; the light source module is used to emit visible light to form a visual target; and the deflection module is used to adjust the emission angle of the visible light.

[0085] Furthermore, the microprocessor is connected to the deflection module and is used to control the action of the deflection module to adjust the angle of the emitted light of the light source module.

[0086] like Figure 7-10 As shown, the display mode of the display component forming the visual target includes at least one of the following modes:

[0087] Mode 1: adjusting the position of the visual target according to the first angle 021 of the user's head deflection so that the visual target is always located at the first position 011;

[0088] Mode 2: Adjust the position of the visual target according to the first angle 021 of the user's head deflection, so that the visual target deflects in the same direction as the user's head deflection by a second angle 022 and moves to the second position 012;

[0089] Mode 3: Adjust the position of the viewing target according to the first angle 021 of the user's head deflection, so that the viewing target is deflected by a third angle 023 in the opposite direction of the user's head deflection direction and moves to the third position 013. Furthermore, the viewing target deflection angle is calculated using the following formula:

[0090] θ=I*gain*θ gyro

[0091] Where I is the target motion coefficient corresponding to the target display mode, which takes the value of 0, 1 or -1; gain is the gain value, and gain>0; θ gyro is the head deflection angle.

[0092] The display modes of the display component forming the visual target include:

[0093] Mode 4: After the visual target position is initialized, the visual target reciprocates at an input or preset amplitude and frequency. Specifically, the visual target is deflected by a fourth angle 024 to move to a fourth position 014, then to the initial first position 011, and finally deflected by a fifth angle 025 to move to a fifth position 015. Furthermore, when the visual target reciprocates at an input or preset amplitude and frequency, the motion pattern of the input or preset amplitude and frequency includes a sinusoidal simple harmonic motion mode, a square wave motion mode, or a triangular wave motion mode.

[0094] The optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly forms a limiting portion at one end to limit the stroke of the rotating assembly;

[0095] Further, if Figure 3-5 As shown; the microprocessor also includes an initialization adjustment module, which is used to control the drive component to drive the rotating component to rotate forward toward the limit portion until it is blocked by the limit portion and then rotates in the opposite direction by a preset angle.

[0096] The optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly is respectively formed with a first limiting portion and a second limiting portion at both ends to limit the stroke of the rotating assembly;

[0097] The initialization adjustment module is used to control the driving component to drive the rotating component to rotate forward toward the first limit part until it is blocked by the first limit part, then rotate in the opposite direction until it is blocked by the second limit part, detect the rotation angle α between the two blockings, and then rotate forward by an angle of α / 2.

[0098] In one embodiment of the present invention, the rotating assembly includes the rotating mirror 102, the driving assembly includes the driving motor, and a limiting ridge is provided on the rotating mirror 102. During initialization, the head-mounted controller 104 drives the motor and the rotating mirror 102 to deflect forward, and the limiting ridge of the rotating mirror 102 hits the left limit position (first limit part) of the optical machine component 1 frame. After the head-mounted controller 104 detects the first motor stall, it drives the motor and the rotating mirror 102 to deflect in the opposite direction, and the limiting ridge of the rotating mirror 102 hits the right limit position (second limit part) of the optical machine component 1 frame. After the head-mounted controller 104 detects the second motor stall, the head-mounted controller 104 calculates the step distance of the motor rotation between the first motor stall and the second motor stall, that is, the deflection angle stroke. The head-mounted controller 104 drives the motor and the rotating mirror 102 to deflect forward 1 / 2 of the deflection angle stroke again, and the initialization of the rotating mirror 102 to the middle position is completed.

[0099] Furthermore, the head-mounted controller also includes an input / output module for obtaining user input information and outputting feedback information to the user. The input / output module is used to obtain user input information and output feedback information to the user. Further, the input / output module of the head-mounted controller 104 includes a wireless connection module with a mobile phone APP / computer software, a physical button / keyboard, or a virtual button or virtual keyboard implemented on a touch screen.

[0100] It also includes a sensor carpet for sensing foot movement, which is connected to the head-mounted controller via a USB interface or wirelessly.

[0101] The microprocessor is configured to obtain head information and input information collected by the head motion sensor, drive the motor, and control the light source module according to a preset mode. Furthermore, the system preferably includes a storage unit connected to the microprocessor; the storage unit is configured to store preset training plans, patient information, head information collected during training, and feedback on training results.

[0102] like Figure 11 As shown, the present invention also provides a control method for a gaze stability training system, comprising:

[0103] S1. The display component forms a visual target visible to the naked eye within the field of view;

[0104] S2. The head-mounted controller collects the user's head information.

[0105] Furthermore, the visual target position is adjusted according to the user's head movement information.

[0106] like Figure 7-10 As shown, preferably, the display mode of the visual target includes at least one of the following modes:

[0107] Mode 1: adjusting the position of the visual target according to the first angle 021 of the user's head deflection so that the visual target is always located at the first position 011;

[0108] Mode 2: Adjust the position of the visual target according to the first angle 021 of the user's head deflection, so that the visual target deflects in the same direction as the user's head deflection by a second angle 022 and moves to the second position 012;

[0109] Mode 3: adjusting the position of the viewing target according to the first angle 021 of the user's head deflection, so that the viewing target is deflected by a third angle 023 in the opposite direction of the user's head deflection direction and moves to the third position 013.

[0110] Furthermore, the target deflection angle is calculated using the following formula:

[0111] θ=I*gain*θ gyro

[0112] Where I is the target motion coefficient corresponding to the target display mode, which takes the value of 0, 1 or -1; gain is the gain value, and gain>0; θ gyro is the head deflection angle.

[0113] Furthermore, the display modes of the visual target include: Mode 4, after the visual target position is initialized, the visual target reciprocates according to the input or preset amplitude and frequency, that is, the visual target is deflected by the fourth angle to move to the fourth position, the visual target moves to the initial first position, and the visual target is deflected by the fifth angle to move to the fifth position.

[0114] Further preferably, when the visual target reciprocates according to the input or preset amplitude and frequency, the motion pattern of the input or preset amplitude and frequency includes a sinusoidal simple harmonic motion pattern, a square wave motion pattern or a triangle wave motion pattern.

[0115] In another embodiment of the present invention, the balance exercise in the gaze stabilization exercise is performed in conjunction with the induction carpet:

[0116] 1) Keeping the target in the center, stand with your feet shoulder-width apart, looking straight ahead, and arms out to the sides. Hold for 30 seconds with your eyes open, then 30 seconds with your eyes closed. Bring your legs together, hold for 30 seconds with your eyes open, then 30 seconds with your eyes closed.

[0117] (Cartoon characters are displayed on the screen, demonstrating the movements and playing a countdown, accompanied by encouraging voices)

[0118] 2) Hold your arms across your chest with your eyes open for 30 seconds, then close your eyes for 30 seconds.

[0119] (Cartoon characters are displayed on the screen, demonstrating the movements and playing a countdown, accompanied by encouraging voices)

[0120] 2) Stand on one leg

[0121] Open your eyes, stand on one leg, and hold for 5-10 seconds.

[0122] Alternate legs.

[0123] Close your eyes and stand on one leg, hold for 5-10 seconds.

[0124] Alternate legs.

[0125] (When the patient fails to stand on one leg, he or she will put the other foot on the ground. The vestibular rehabilitation sensing carpet can sense it and make a warning sound to encourage the patient to cheer up and continue practicing).

[0126] 3) Walking exercises

[0127] Walk on the induction mat, holding one hand against the wall. Gradually lift your hand away from the wall, and walk straight forward, back and forth. Do this for two minutes at a time, then close your eyes and repeat on the induction mat. As you walk, shake your head left and right, and nod up and down.

[0128] The control method of the gaze stability training system of the present invention further includes a step of initializing the visual target position, which is implemented by an optical-mechanical assembly in the display assembly, wherein the optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly has a limiting portion formed at one end to limit the travel of the rotating assembly;

[0129] The step of initializing the sight target position comprises:

[0130] The control driving assembly drives the rotating assembly to rotate forward toward the limit portion until it is blocked by the limit portion, and then rotates in the reverse direction by a preset angle. The control driving assembly drives the rotating assembly to rotate forward toward the first limit portion until it is blocked by the first limit portion, and then rotates in the reverse direction by an angle β, even if the sight target is at the zero position, β is the preset value.

[0131] In another embodiment, the control method of the gaze stability training system of the present invention includes a step of initializing the target position, which is implemented by an optomechanical component in a display component. The optomechanical component includes a rotating component, a driving component for driving the rotating component to rotate, and a limiting component. The limiting component forms a first limiting portion and a second limiting portion at both ends, respectively, to limit the stroke of the rotating component.

[0132] The step of initializing the sight target position comprises:

[0133] The control driving assembly drives the rotating assembly to rotate forward toward the first limit portion until it is blocked by the first limit portion, and then rotate in the opposite direction until it is blocked by the second limit portion, detect the rotation angle α between the two blockings, and then rotate forward by an angle of α / 2.

[0134] In one embodiment of the present invention, the rotating assembly includes the rotating mirror 102, the driving assembly includes the driving motor, and a limiting ridge is provided on the rotating mirror 102. During initialization, the head-mounted controller 104 drives the motor and the rotating mirror 102 to deflect forward, and the limiting ridge of the rotating mirror 102 hits the left limit position (first limit part) of the optical machine component 1 frame. After the head-mounted controller 104 detects the first motor stall, it drives the motor and the rotating mirror 102 to deflect in the opposite direction, and the limiting ridge of the rotating mirror 102 hits the right limit position (second limit part) of the optical machine component 1 frame. After the head-mounted controller 104 detects the second motor stall, the head-mounted controller 104 calculates the step distance of the motor rotation between the first motor stall and the second motor stall, that is, the deflection angle stroke. The head-mounted controller 104 drives the motor and the rotating mirror 102 to deflect forward 1 / 2 of the deflection angle stroke again, and the initialization of the rotating mirror 102 to the middle position is completed.

[0135] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A gaze stability training system, characterized in that: include: A display component, used for forming a target visible to the naked eye within a field of view; The display assembly includes an optical-mechanical assembly, which includes a light source module and a deflection module connected to the light source module; the light source module is used to emit visible light to form a visual target; the deflection module is used to adjust the emission angle of the visible light; The deflection module includes a rotating mirror and a first motor that drives the rotating mirror to rotate; the rotating mirror is connected to the first motor; Or the deflection module is a second motor; the light source module is connected to the power output end of the second motor, and the second motor directly or indirectly drives the deflection angle of the light source module; The head-mounted controller includes a head motion sensor and a microprocessor; the head motion sensor is connected to the microprocessor for collecting user head movement information, and the microprocessor is connected to the display component for adjusting the visual target position according to the user's head movement information.

2. The gaze stability training system according to claim 1, characterized in that: The microprocessor is connected to the deflection module and is used to control the action of the deflection module to adjust the angle of the emitted light of the light source module.

3. The gaze stability training system according to claim 2, characterized in that: When the rotating mirror of the deflection module is connected to the first motor, the optical axis of the light source module is coaxial with or parallel to the rotating axis of the rotating mirror, and the reflecting surface of the rotating mirror forms an angle of 45 degrees with the optical axis direction of the light source module.

4. The gaze stability training system according to any one of claims 1 to 3, characterized in that: The display mode of the display component forming the visual target includes at least one of the following modes: Mode 1: Adjust the position of the visual target according to the first angle of the user's head deflection so that the visual target is always in the first position; Mode 2: Adjust the position of the visual target according to the first angle of the user's head deflection, so that the visual target is deflected in the same direction as the user's head deflection by a second angle and moves to a second position; Mode 3: adjusting the position of the visual target according to the first angle of the user's head deflection, so that the visual target is deflected by a third angle in the opposite direction of the user's head deflection direction and moves to a third position.

5. The gaze stability training system according to claim 4, characterized in that: The target deflection angle is calculated using the following formula: θ = I * gain * θ gyro Where, I is the target motion coefficient corresponding to the target display mode, which takes the value of 0, 1 or -1; gain is the gain value, and gain>0; θ gyro is the head deflection angle.

6. The gaze stability training system according to any one of claims 1 to 3, characterized in that: The display modes of the display component forming the visual target include: Mode 4, after the visual target position is initialized, the visual target reciprocates according to the input or preset amplitude and frequency, that is, the visual target is deflected by the fourth angle to move to the fourth position, the visual target moves to the initial first position, and the visual target is deflected by the fifth angle to move to the fifth position.

7. The gaze stability training system according to claim 6, characterized in that: When the sight target reciprocates according to the input or preset amplitude and frequency, the motion mode of the input or preset amplitude and frequency includes a sinusoidal simple harmonic motion mode, a square wave motion mode or a triangle wave motion mode.

8. The gaze stability training system according to any one of claims 1 to 3, characterized in that: The optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly forms a limiting portion at one end to limit the stroke of the rotating assembly; the microprocessor also includes an initialization adjustment module, which is used to control the driving assembly to drive the rotating assembly to rotate forward toward the limiting portion until it is blocked by the limiting portion and then rotates in the opposite direction by a preset angle.

9. The gaze stability training system according to any one of claims 1 to 3, characterized in that: The optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limit assembly, wherein the limit assembly forms a first limit portion and a second limit portion at both ends respectively to limit the stroke of the rotating assembly; the microprocessor also includes an initialization adjustment module, which is used to control the driving assembly to drive the rotating assembly to rotate forward toward the first limit portion until it is blocked by the first limit portion, and then rotate in the opposite direction until it is blocked by the second limit portion, detect the rotation angle α between the two blockages, and then rotate forward by an angle of α / 2.

10. The gaze stability training system according to any one of claims 1 to 3, characterized in that: The head mounted controller further comprises an input and output module for obtaining user input information and outputting feedback information to the user.

11. The gaze stability training system according to claim 10, characterized in that: The input-output module includes a sensing carpet for sensing foot movement, and the sensing carpet is connected to a head-mounted controller.

12. The gaze stability training system according to any one of claims 1 to 3, characterized in that: It also includes a first bracket, which is rotatably connected to the optical-mechanical assembly and is used to adjust the optical axis swing plane of the light source module.

13. The gaze stability training system according to claim 12, characterized in that: It also includes a second bracket, which is rotatably connected to the first bracket and is used to adjust the optical axis swing plane of the light source module.

14. A control method for a gaze stability training system, characterized in that: The gaze stability training system according to any one of claims 1 to 13 is implemented, comprising: a display component forming a visual target visible to the naked eye within the field of view; a head-mounted controller collecting user head information and adjusting the position of the visual target according to the user's head movement information.

15. The control method of the gaze stability training system according to claim 14, characterized in that: The display mode of the visual target includes at least one of the following modes: Mode 1, adjusting the visual target position according to the first angle of deflection of the user's head, so that the visual target is always in the first position; Mode 2, adjusting the visual target position according to the first angle of deflection of the user's head, so that the visual target is deflected in the same direction as the deflection direction of the user's head by a second angle and moves to the second position; Mode 3, adjusting the visual target position according to the first angle of deflection of the user's head, so that the visual target is deflected in the opposite direction to the deflection direction of the user's head by a third angle and moves to the third position.

16. The control method of the gaze stability training system according to claim 15, characterized in that: The target deflection angle is calculated using the following formula: θ=I*gain*θ gyro Where, I is the target motion coefficient corresponding to the target display mode, which takes the value of 0, 1 or -1; gain is the gain value, and gain>0; θ gyro is the head deflection angle.

17. The control method for gaze stability training according to claim 14, characterized in that: The display modes of the visual target include: Mode 4. After the visual target position is initialized, the visual target moves back and forth according to the input or preset amplitude and frequency, that is, the visual target is deflected by the fourth angle to move to the fourth position, the visual target moves to the initial first position, and the visual target is deflected by the fifth angle to move to the fifth position.

18. The control method of the gaze stability training system according to claim 17, characterized in that: When the sight target reciprocates according to the input or preset amplitude and frequency, the motion mode of the input or preset amplitude and frequency includes a sinusoidal simple harmonic motion mode, a square wave motion mode or a triangle wave motion mode.

19. The control method of the gaze stability training system according to any one of claims 14 to 18, characterized in that: The method further includes a step of initializing the visual target position, which is achieved by an optical-mechanical assembly in the display assembly, wherein the optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly has a limiting portion formed at one end to limit the travel of the rotating assembly; The step of initializing the sight target position includes: controlling the driving component to drive the rotating component to rotate forward toward the limiting portion until the rotating component is blocked by the limiting portion and then rotates backward by a preset angle.

20. The control method of the gaze stability training system according to any one of claims 14 to 18, characterized in that: The method further includes a step of initializing the visual target position, which is achieved by an optical-mechanical assembly in the display assembly, wherein the optical-mechanical assembly includes a rotating assembly, a driving assembly for driving the rotating assembly to rotate, and a limiting assembly, wherein the limiting assembly is respectively formed with a first limiting portion and a second limiting portion at two ends thereof to limit the travel of the rotating assembly; The step of initializing the target position includes: controlling the driving component to drive the rotating component to rotate forward toward the first limit part until it is blocked by the first limit part, then rotating in the opposite direction until it is blocked by the second limit part, detecting the rotation angle α between the two blockings, and then rotating forward by an angle of α / 2.

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