Control method of head-mounted device

Abstract

The invention belongs to the technical field of intelligent head-mounted equipment, and discloses a control method of head-mounted equipment, which uses the head-mounted equipment, and comprises the following steps: when the head-mounted equipment is worn, equipment supporting legs detect a wearing pressure value through a pressure sensor; when the wearing pressure value is larger than the set pressure value, the driving device drives the adjusting gear to rotate in one direction and drives the two adjusting push blocks to act so as to reduce the wearing pressure value; when the wearing pressure value is smaller than the set pressure value, the driving device drives the adjusting gear to rotate in the other direction and drives the two adjusting push blocks to act, so that the wearing pressure value is increased; and when the wearing pressure value is equal to the set pressure value, the driving device stops acting. According to the invention, the wearing pressure value detected in real time is compared with the set pressure value required by the target, the driving device is controlled to act, and the adjusting gear is driven to rotate clockwise or anticlockwise, so that the wearing pressure value reaches and is kept at the set pressure value, and the wearing comfort is improved.

Description

[0001] This invention is a divisional application of Chinese Patent No. 202310273689.4, filed on March 20, 2023, entitled "Head-mounted device and control method for head-mounted device". Technical Field

[0002] This invention relates to the field of smart head-mounted devices, and more particularly to a control method for head-mounted devices. Background Technology

[0003] Among existing smart glasses, AR devices, VR devices, and other smart head-mounted devices, some lack adjustment mechanisms and rely on the elastic deformation of the material itself to provide clamping force for secure wearing. This limits their applicability, and different users experience varying pressure when wearing them. Others use elastic straps for secure wearing, but this also limits their applicability, and users with different head shapes experience varying levels of comfort. Some devices, while equipped with adjustment mechanisms, require manual adjustment of the tightness using knobs, resulting in poor adjustment accuracy, a complex and cumbersome adjustment process, and poor adaptability. Summary of the Invention

[0004] The purpose of this invention is to provide a control method for a head-mounted device that can efficiently and conveniently adjust the tightness and improve wearing comfort.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A control method for a head-mounted device, the head-mounted device including a device main unit and two device legs, the two device legs being respectively connected to the device main unit, at least one of the device legs being configured with an adjustment component, and the device main unit and the device legs being provided with a fixed seat and a movable seat respectively;

[0007] The adjustment assembly includes an adjustment push block, a drive device, an adjustment gear, and a pressure sensor. Two adjustment push blocks are provided, each slidably mounted on the fixed base. The adjustment gear is located at the output end of the drive device, between the two adjustment push blocks, and meshes with them. One adjustment push block can drive the device leg to rotate relative to its equilibrium position by pushing against the movable base. The two adjustment push blocks can drive the device leg to rotate in opposite directions. The pressure sensor is mounted on the device leg. The drive device is configured to drive the adjustment gear based on the pressure value detected by the pressure sensor.

[0008] The control method for the head-mounted device uses the head-mounted device and includes:

[0009] When the head-mounted device is worn, the device's legs detect the wearing pressure value through the pressure sensor;

[0010] When the wearing pressure value is greater than the set pressure value, the driving device drives the adjusting gear to rotate in one direction, which in turn drives the two adjusting push blocks to move, thereby reducing the wearing pressure value.

[0011] When the wearing pressure value is less than the set pressure value, the drive device drives the adjusting gear to rotate in another direction, which in turn drives the two adjusting push blocks to move, thereby increasing the wearing pressure value.

[0012] When the wearing pressure value equals the set pressure value, the drive device stops operating.

[0013] Preferably, the head-mounted device has multiple usage modes, each with a different set pressure value. The head-mounted device can be connected to an electronic device via a signal, allowing the electronic device to select the usage mode of the head-mounted device, so that the head-mounted device operates in the selected usage mode.

[0014] Preferably, the various usage modes include sports mode, movie-watching mode, and comfort mode;

[0015] The sports mode is designed for users to play games or exercise while wearing the headset, with a relatively high set pressure value. The movie viewing mode is designed for users to remain still, with a moderate set pressure value. The comfort mode has the lowest set pressure value.

[0016] Preferably, the usage mode is selected via an app on the electronic device or an adjustment terminal on the device's main unit.

[0017] Preferably, when the wearing pressure value is zero, the driving device drives the device leg to the balance position through the adjusting gear. When the device leg is in the balance position, the two adjusting push blocks extend out of the fixed seat at the same length.

[0018] Preferably, the head-mounted device is a smart glasses, an AR device, or a VR device, and the pressure value is adjusted and set by an APP on the electronic device or an adjustment terminal on the device host.

[0019] Preferably, the adjusting push block includes a push rod and a support block connected to each other, the push rod being slidably connected to the fixed base, and the support block being engaged with the adjusting gear.

[0020] Preferably, the movable seat is provided with a boss, which is located between the two adjusting push blocks and abuts against the fixed seat.

[0021] Preferably, the boss is provided with a stop arc surface, which abuts against the fixing seat.

[0022] Preferably, the movable seat is also provided with two abutting surfaces, which are symmetrically arranged on both sides of the boss, and the two adjusting push blocks can abut against the two abutting surfaces in a one-to-one correspondence.

[0023] The beneficial effects of this invention are:

[0024] By comparing the real-time detected wearing pressure value with the target set pressure value, the drive device is controlled to rotate clockwise or counterclockwise, so that the wearing pressure value reaches and is maintained at the set pressure value, thereby improving wearing comfort. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the head-mounted device according to an embodiment of the present invention when both device legs are in a balanced position;

[0026] Figure 2 yes Figure 1 The diagram shown is a partial structural schematic of the head-mounted device.

[0027] Figure 3 yes Figure 1 The diagram shows the structure of the adjustment components in the head-mounted device.

[0028] Figure 4 yes Figure 3 The diagram shows another structural schematic of the adjustment component from another direction;

[0029] Figure 5 yes Figure 3 The diagram shows a partial structure of the adjustment component. Figure 1 ;

[0030] Figure 6 yes Figure 5 Top view of the structure shown;

[0031] Figure 7 yes Figure 3 The diagram shows a partial structure of the adjustment component. Figure 2 ;

[0032] Figure 8 This is a schematic diagram of the structure of the movable seat according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the head-mounted device according to an embodiment of the present invention when one of the device's support legs deviates from its balanced position;

[0034] Figure 10 yes Figure 9The diagram shown is a partial structural schematic of the head-mounted device.

[0035] Figure 11 yes Figure 10 Top view of the structure shown.

[0036] In the picture:

[0037] 100. Main unit of equipment; 110. Fixed base; 111. Fixed cable hole; 200. Equipment support leg; 210. Movable base; 211. Anti-stop arc surface; 212. Pushing surface; 213. Movable cable hole;

[0038] 1. Adjust the push block;

[0039] 11. Push rod; 12. Support block; 13. Guide channel;

[0040] 2. Drive unit;

[0041] 3. Adjust the gears;

[0042] 4. Reset device;

[0043] 41. Rotating shaft; 42. Connecting rod; 43. Elastic element;

[0044] 5. Pressure sensor. Detailed Implementation

[0045] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0049] like Figures 1-11 As shown, the present invention provides a head-mounted device, including a main unit 100 and two support legs 200. The two support legs 200 are respectively connected to the main unit 100. At least one support leg 200 is equipped with an adjustment component, which includes an adjustment push block 1, a drive device 2, and an adjustment gear 3. There are two adjustment push blocks 1, one with a fixed base 110 and the other with a movable base 210 on the main unit 100 and the support leg 200, respectively. The two adjustment push blocks 1 are slidably mounted on the fixed base 110. The adjustment gear 3 is located at the output end of the drive device 2, between the two adjustment push blocks 1, and meshes with them. When the drive device 2 drives the adjustment gear 3 to rotate, one adjustment push block 1 can push against the movable base 210 to drive the support leg 200 to rotate relative to its equilibrium position. The two adjustment push blocks 1 can drive the support leg 200 to rotate in opposite directions.

[0050] In this invention, when the gear 3 is engaged, the adjustment push block 1 extends and retracts with higher precision. Based on this, the gear 3 is driven to rotate by the drive device 2, and one of the two adjustment push blocks 1 on both sides of the gear 3 is extended, which realizes the swing of the device leg 200 in two directions relative to the balance position. This allows for efficient and convenient adjustment of the tightness of the head-mounted device when worn, and improves the applicability of the device.

[0051] In this embodiment, the drive device 2 is a servo motor, powered by the host device 100, and the adjusting gear 3 is directly mounted on the output shaft of the motor. Alternatively, the drive device 2 may include a motor, a transmission wheel, and a transmission belt. In this case, one transmission wheel is mounted on the output shaft of the motor, the other transmission wheel is coaxially fixed to the adjusting gear 3, and the transmission belt is wound around the two transmission wheels.

[0052] Specifically, the adjusting push block 1 includes a push rod 11 and a support block 12 connected to each other. The push rod 11 is slidably connected to the fixed base 110, and the support block 12 is engaged with the adjusting gear 3. The above structural design is more targeted, enabling the adjusting push block 1 to safely engage with the adjusting gear 3 while sliding smoothly.

[0053] More specifically, the push rod 11 is a rod-shaped structure that slides through the fixed seat 110 along the first direction. One end extends out of the fixed seat 110 to push the movable seat 210, and the other end extends out of the fixed seat 110 and connects to the support block 12. The support block 12 is a rack and pinion structure. Two support blocks 12 are spaced apart along the second direction. The adjusting gear 3 is located between the two support blocks 12 and meshes with the two support blocks 12. The second direction is perpendicular to the first direction.

[0054] In this embodiment, each device leg 200 is equipped with an adjustment component. A fixed base 110 is mounted on the device host 100, a movable base 210 is mounted on the device leg 200, and a drive device 2 is correspondingly mounted on the device host 100. A guide protrusion is also provided on the device host 100, and a guide channel 13 is provided on the support block 12. The guide channel 13 extends along a first direction, and the guide protrusion is slidably disposed within the guide channel 13. The guide protrusion and the guide channel 13 cooperate to support and guide the support block 12, allowing the adjustment push block 1 to slide more evenly and stably relative to the fixed base 110. Alternatively, the fixed base 110 can be mounted on the device leg 200, and the movable base 210 can be mounted on the device host 100. In this case, the guide protrusion and drive device 2 are correspondingly mounted on the device leg 200.

[0055] Specifically, the movable seat 210 is provided with a boss, which is located between the two adjusting push blocks 1 and abuts against the fixed seat 110. By providing the boss, interference between the fixed seat 110 and the movable seat 210 is avoided when the equipment support leg 200 rotates relative to the balance position.

[0056] More specifically, a stop arc surface 211 is provided on the boss, and the stop arc surface 211 abuts against the fixed seat 110. By providing the stop arc surface 211, the movable seat 210 can be deflected more smoothly.

[0057] More specifically, the movable seat 210 is also provided with two abutment surfaces 212, which are symmetrically arranged on both sides of the boss. The two adjusting push blocks 1 can abut against the two abutment surfaces 212 in a one-to-one correspondence. By providing two abutment surfaces 212, the abutment of the adjusting push blocks 1 is made safer and more reliable.

[0058] In this embodiment, the stop arc surface 211 is in line contact with the fixed base 110, and the line of the line contact extends along the third direction. The push surface 212 is parallel to the third direction, and the third direction is perpendicular to the first direction and the second direction.

[0059] Specifically, the adjustment assembly also includes a reset device 4. The equipment leg 200 is connected to the main equipment 100 via the reset device 4. The reset device 4 is configured to drive the equipment leg 200 to stop in a balanced position relative to the main equipment 100. In addition to its transfer function, the reset device 4 also ensures that the equipment leg 200 can be stably and reliably in a balanced position when the drive device 2 drives the two adjustment push blocks 1 to extend and retract by the same length relative to the fixed base 110.

[0060] More specifically, the reset device 4 includes a rotating shaft 41, a connecting rod 42, and an elastic element 43. The rotating shaft 41 is fixed to the movable seat 210, the connecting rod 42 is slidably disposed on the fixed seat 110, with one end rotatably connected to the rotating shaft 41, and the elastic element 43 is sandwiched between the other end of the connecting rod 42 and the fixed seat 110. This structure of the reset device 4 is simple and reliable. In addition to the above configuration, the reset device 4 can also be a structure in which a rotating shaft and a torsion spring cooperate. The equipment support leg 200 is rotatably connected to the main equipment 100 via the rotating shaft, and the torsion spring is disposed on the rotating shaft, capable of driving the equipment support leg 200 to stop relative to the main equipment 100 in a balanced position.

[0061] In this embodiment, when the equipment support leg 200 is in the balanced position, the two adjusting push blocks 1 have the same extension length relative to the fixed seat 110. At this time, the two adjusting push blocks 1 are symmetrically arranged with respect to the first plane. The first plane is parallel to the first direction and perpendicular to the second direction. The reset device 4 is located on the first plane and there are two of them. The two reset devices 4 are symmetrically arranged in the third direction. The connecting rod 42 is slidably arranged on the fixed seat 110 along the first direction. One end extends out of the fixed seat 110 and is provided with a sleeve hole. It is rotatably sleeved on the rotating shaft 41 on the movable seat 210. The rotating shaft extends along the third direction. The other end extends out of the fixed seat 110 and is provided with a limit block. The elastic element 43 is a spring, which is sleeved on the connecting rod 42 and clamped between the limit block and the fixed seat 110.

[0062] Specifically, the adjustment assembly also includes a pressure sensor 5, which is mounted on the equipment support leg 200. The drive unit 2 is configured to drive the adjustment gear 3 to actuate based on the pressure value detected by the pressure sensor 5. By using the pressure sensor 5, the operation of the drive unit 2 becomes more precise and reliable.

[0063] More specifically, the fixed base 110 is provided with a fixed wire hole 111, and the movable base 210 is provided with a movable wire hole 213. The pressure sensor 5 is connected to the controller in the main unit 100 via a wire, which passes through the fixed wire hole 111 and the movable wire hole 213. The above arrangement makes the electrical connection between the pressure sensor 5 and the controller safer and more reliable.

[0064] In this embodiment, the pressure sensor 5 is a thin-film pressure sensor. Each of the two device legs 200 is equipped with a pressure sensor 5. The adjustment component on each device leg 200 can control the tightness based on the pressure sensor 5. When the head-mounted device is worn, the main unit 100 is located in front of the user's eyes, and the two device legs 200 are located on either side of the user's head. At this time, the device legs 200 apply pressure to the user's head to ensure stability. The pressure sensor 5 on the device leg 200 specifically detects the pressure applied by the device leg 200 to the user's head. The pressure sensor 5 and the drive device 2 are both electrically connected to the controller. The pressure sensor 5 transmits the detected pressure value to the controller, which then controls the drive device 2 to adjust the tightness of the head-mounted device. The specific structure, connection circuit, and control logic of the pressure sensor 5, drive device 2, and controller described above are conventional setups in the art and will not be elaborated further here.

[0065] In the head-mounted device of the present invention, driven by the driving device 2, the angle adjustment range of the device leg 200 relative to the balance position is -15° to 15°. Driven by the servo motor, the device leg 200 can achieve stepless angle adjustment with high adjustment accuracy and strong adaptability, and can adapt to different wearing pressure requirements of users. In addition to the above-mentioned angle range, other angles can be set according to wearing needs, which are not limited here.

[0066] The present invention also provides a control method for a head-mounted device, using the above-described head-mounted device, comprising:

[0067] When the head-mounted device is worn, the device's support legs 200 detect the wearing pressure value through the pressure sensor 5;

[0068] When the wearing pressure value is greater than the set pressure value, the drive device 2 drives the adjustment gear 3 to rotate in one direction, which drives the two adjustment push blocks 1 to move to reduce the wearing pressure value.

[0069] When the wearing pressure value is less than the set pressure value, the drive device 2 drives the adjusting gear 3 to rotate in another direction, which in turn drives the two adjusting push blocks 1 to move, thereby increasing the wearing pressure value.

[0070] When the wearing pressure value equals the set pressure value, the drive device 2 stops operating.

[0071] In the control method of the head-mounted device of the present invention, by comparing the real-time detected wearing pressure value with the target required set pressure value, the drive device 2 is controlled to operate, thereby driving the adjustment gear 3 to rotate clockwise or counterclockwise, so that the wearing pressure value reaches and is maintained at the set pressure value, thereby improving the wearing comfort.

[0072] Specifically, when the wearing pressure value is zero, the drive device 2 drives the device legs 200 to a balanced position by adjusting the gear 3. The above setting ensures that when the head-mounted device is not worn or is turned off, the device legs 200 can maintain a balanced position, avoiding ineffective operation of the drive device 2.

[0073] More specifically, the head-mounted device has multiple usage modes, each with a different set pressure value. The head-mounted device can connect to an electronic device, allowing the user to select the desired mode and operate accordingly. This configuration enables remote control of the head-mounted device, making operation more convenient and preventing issues caused by the inability to see the control buttons or knobs on the device while wearing it.

[0074] In this invention, the head-mounted device is a smart device such as smart glasses, AR device, or VR device. The controller is an electronic IC control module installed in the device host 100. The electronic device is a mobile phone or tablet computer, which can be accessed and adjusted via a mobile APP. The set pressure value is stored in the controller and can be adjusted by the APP on the mobile phone or other electronic device or the adjustment terminal on the device host 100. This allows users to set different set pressure values ​​according to their own needs, such as 5N, 8N, 10N, etc. The adjustment range of the set pressure value can be 0-50N. The maximum set pressure value is determined according to the temple structure and material. Ultimately, users can determine the set pressure value according to their own wearing pressure tolerance, which is more flexible and has stronger applicability.

[0075] Specifically, different usage modes can be defined, each applicable to a specific scenario, with each usage mode corresponding to a set pressure value. Users can select the usage mode via an app on their mobile phone or other electronic device, or via the adjustment terminal on the device host 100.

[0076] More specifically, multiple usage modes include sports mode, movie viewing mode, and comfort mode. The corresponding sports mode, movie viewing mode, and comfort mode options are available on the app on mobile devices such as smartphones. During operation, the user selects the sports mode, movie viewing mode, or comfort mode option on the app. The electronic device sends a signal to the head-mounted device, which automatically adjusts to the corresponding usage mode upon receiving the signal. In sports mode, the user wears the head-mounted device for gaming or exercise, with a higher pressure setting. In movie viewing mode, the user only needs to remain still, ensuring the head-mounted device doesn't fall off, with a moderate pressure setting. In comfort mode, the pressure setting is the lowest to reduce wearing pressure.

[0077] The initial clamping force of a head-mounted device is affected by material aging, and it will loosen after being worn for a certain period of time. However, the head-mounted device of the present invention is equipped with an adjustment component, which can maintain a consistent clamping force and avoid the effects of material aging and loosening.

[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A control method for a head-mounted device, characterized in that, The head-mounted device includes a main unit and two support legs, which are respectively connected to the main unit. At least one support leg is equipped with an adjustment component. The main unit and the support leg are provided with a fixed base and a movable base, respectively. The adjustment assembly includes an adjustment push block, a drive device, an adjustment gear, and a pressure sensor. Two adjustment push blocks are provided, each slidably mounted on the fixed base. The adjustment gear is located at the output end of the drive device, between the two adjustment push blocks, and meshes with them. One adjustment push block can drive the device leg to rotate relative to its equilibrium position by pushing against the movable base. The two adjustment push blocks can drive the device leg to rotate in opposite directions. The pressure sensor is mounted on the device leg. The drive device is configured to drive the adjustment gear based on the pressure value detected by the pressure sensor. The control method for the head-mounted device uses the head-mounted device and includes: When the head-mounted device is worn, the device's legs detect the wearing pressure value through the pressure sensor; When the wearing pressure value is greater than the set pressure value, the driving device drives the adjusting gear to rotate in one direction, which in turn drives the two adjusting push blocks to move, thereby reducing the wearing pressure value. When the wearing pressure value is less than the set pressure value, the drive device drives the adjusting gear to rotate in another direction, which in turn drives the two adjusting push blocks to move, thereby increasing the wearing pressure value. When the wearing pressure value equals the set pressure value, the drive device stops operating.

2. The control method for a head-mounted device according to claim 1, characterized in that, The head-mounted device has multiple usage modes, each with a different set pressure value. The head-mounted device can be connected to an electronic device via a signal, allowing the electronic device to select the usage mode of the head-mounted device, thus enabling the head-mounted device to operate in the selected usage mode.

3. The control method for a head-mounted device according to claim 2, characterized in that, The various usage modes include sports mode, movie mode, and comfort mode; The sports mode is designed for users to play games or exercise while wearing the headset, with a relatively high set pressure value. The movie viewing mode is designed for users to remain still, with a moderate set pressure value. The comfort mode has the lowest set pressure value.

4. The control method for a head-mounted device according to claim 2, characterized in that, The usage mode is selected via an app on the electronic device or an adjustment terminal on the device's main unit.

5. The control method for a head-mounted device according to claim 1, characterized in that, When the wearing pressure value is zero, the drive device drives the device leg to the balance position through the adjustment gear. When the device leg is in the balance position, the two adjustment push blocks extend out of the fixed seat at the same length.

6. The control method for a head-mounted device according to claim 1, characterized in that, The head-mounted device is a smart glasses, AR device, or VR device, and the pressure value is set by an APP on the electronic device or an adjustment terminal on the device host.

7. The control method for a head-mounted device according to claim 1, characterized in that, The adjusting push block includes a push rod and a support block connected to each other. The push rod is slidably connected to the fixed base, and the support block is engaged with the adjusting gear.

8. The control method for a head-mounted device according to any one of claims 1-7, characterized in that, The movable seat is provided with a boss, which is located between the two adjusting push blocks and abuts against the fixed seat.

9. The control method for a head-mounted device according to claim 8, characterized in that, The boss is provided with a stop arc surface, which abuts against the fixing seat.

10. The control method for a head-mounted device according to claim 8, characterized in that, The movable seat is also provided with two abutting surfaces, which are symmetrically arranged on both sides of the boss. The two adjusting push blocks can abut against the two abutting surfaces in a one-to-one correspondence.

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