Annular interaction device and man-machine interaction system

Abstract

The invention provides an annular interaction device, which comprises an annular main body, an annular main body, an annular main body and an annular main body, the piezoelectric module is connected to the annular main body and located in the containing space, and the piezoelectric module generates a first electric signal when being pressed; the magnetoelectric conversion module is located in the containing space, and when the magnetic field intensity of a magnetic field penetrating through the magnetoelectric conversion module changes, the magnetoelectric conversion module generates a second electric signal; wherein the annular interaction device is used for detecting a pressing operation of a user on the annular main body according to the first electric signal or detecting a rotating operation of the user on the annular main body according to the second electric signal. The invention further provides a man-machine interaction system.

Description

Technical Field

[0001] The present application relates to a ring-shaped interactive device and a human-computer interaction system including the ring-shaped interactive device. Background Art

[0002] At present, when operating the display interface of smart devices such as augmented reality (AR), virtual reality (VR) and mixed reality (MR), most of them use joysticks, gloves, handles or gesture recognition devices to recognize user gestures. Smart devices can be connected to these interactive devices by wire or wirelessly. In order to enable smart devices to receive input at a large distance without having to be physically connected to the interactive device, these interactive devices can send interactive instructions to smart devices via wireless communication modules such as Bluetooth or Wifi to achieve wireless communication connection between the interactive device and the smart device. At present, most of these interactive devices are large in size and difficult to operate. Summary of the invention

[0003] The first aspect of the present application provides a ring-shaped interactive device, comprising: The annular main body is formed with a receiving space; a piezoelectric module connected to the annular body and located in the accommodation space, wherein the piezoelectric module generates a first electrical signal when subjected to pressure; and A magnetoelectric conversion module is located in the accommodation space, and when the magnetic field strength of the magnetic field passing through the magnetoelectric conversion module changes, the magnetoelectric conversion module generates a second electrical signal; The annular interactive device is used to detect a user's pressing operation on the annular body according to the first electrical signal or to detect a user's rotating operation on the annular body according to the second electrical signal.

[0004] In the above annular interactive device, the piezoelectric module and the magnetoelectric conversion module are both arranged in the accommodation space, which is conducive to reducing the volume of the annular interactive device and making it convenient for users to carry. In addition, when users use the annular interactive device to interact with smart devices, the operation is simple, and the user is concise and light to use.

[0005] Furthermore, the piezoelectric module includes a first electrode layer, a piezoelectric layer, and a second electrode layer stacked in sequence, and the first electrode layer or the second electrode layer is attached to the annular body; When the piezoelectric layer is subjected to pressure, a potential difference is generated between the first electrode layer and the second electrode layer, thereby outputting the first electrical signal.

[0006] Furthermore, the piezoelectric layer may be a polyvinylidene fluoride film or a lead zirconate titanate film, and the first electrode layer and the second electrode layer may be silver paste electrodes.

[0007] Furthermore, the annular body includes a first annular structure and a second annular structure, the inner diameter of the first annular structure is greater than the outer diameter of the second annular structure, the first annular structure surrounds and is connected to the periphery of the second annular structure, and the first annular structure and the second annular structure together enclose the accommodating space; The first annular structure and the second annular structure can rotate relative to each other, and the magnetoelectric conversion module is used to sense the rotation angle of the first annular structure relative to the second annular structure or the movement distance of the first annular structure relative to the second annular structure to output the second electrical signal.

[0008] Furthermore, the magnetoelectric conversion module includes a Hall sensor and a plurality of magnets, and the Hall sensor is arranged on the first annular structure; Among the multiple magnets, one magnet is connected to the first annular structure, and the remaining magnets are connected to the second annular structure and are closely arranged in sequence; among the magnets located in the second annular structure, the magnetic properties of each two adjacent magnets are opposite.

[0009] Furthermore, the annular interactive device also includes a gyroscope, which is connected to the annular body and located in the accommodating space, and is used to sense the overall movement of the annular interactive device to output a capacitive signal.

[0010] Further, the gyroscope includes a sensing object, a first spring, a second spring, a first capacitor and a second capacitor, the sensing object is a plate-shaped structure, the first spring and the first capacitor are respectively connected to two opposite sides of the sensing object, and the second spring and the second capacitor are respectively connected to the other two opposite sides of the sensing object; When the annular interactive device moves, the sensing object moves accordingly, causing the capacitance value of the first capacitor and / or the capacitance value of the second capacitor to change, thereby causing the capacitance difference between the first capacitor and the second capacitor to change, and the gyroscope is used to output the capacitance difference.

[0011] Furthermore, the annular interactive device further comprises a wireless transmission module and a power supply, and the wireless transmission module and the power supply are both buried in the second annular structure; The wireless transmission module is electrically connected to the piezoelectric module, the magnetoelectric conversion module and the gyroscope respectively, and is used to send interaction instructions according to the received first electrical signal, the second electrical signal or the capacitance difference; the power supply is electrically connected to the Hall sensor, and is used to provide electrical energy to the Hall sensor.

[0012] Furthermore, along the axial direction of the annular body, the width of the first annular structure is 6 to 15 mm, including the endpoint values, and the width of the second annular structure is 8 to 15 mm, including the endpoint values.

[0013] A second aspect of the present application provides a human-computer interaction system, comprising: A ring-shaped interactive device as described in any one of the above items; and The smart device is communicatively connected with the ring-shaped interactive device.

[0014] The above-mentioned human-computer interaction system is integrated with the above-mentioned annular interaction device, and all the beneficial effects of the above-mentioned annular interaction device can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the ring-shaped interactive device according to an embodiment of the present application.

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the II-II section line.

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the medium voltage electric module.

[0018] Figure 4 for Figure 2 Schematic diagram of the planar structure inside the gyroscope.

[0019] Figure 5 for Figure 1 A schematic side view of the middle ring-shaped interactive device viewed from front to back along a direction perpendicular to the axis.

[0020] Figure 6 A systematic schematic diagram of a human-computer interaction system according to an embodiment of the present application.

[0021] Main component symbols Human-computer interaction system: 1 Ring interactive device: 100 Ring body: 10 Accommodation space: 101 First ring structure: 11 Second ring structure: 12 Piezoelectric module: 20 First electrode layer: 21 Second electrode layer: 22 Piezoelectric layer: 23 Magnetoelectric conversion module: 30 Hall sensor: 31 Magnets: 32 Gyroscope: 40 Sensed objects: 41 First spring: 42 Second spring: 43 First capacitor: 44 Second capacitor: 45 Wireless transmission module: 50 Power: 60 Smart devices: 200 The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0022] Smart devices can detect and receive input instructions from fingers or styluses. Fingers or styluses can operate smart devices without physically touching them. This operation mode generally requires a specific interactive device that is connected to the smart device for communication. The present application provides a ring-shaped interactive device, through which a user can input interactive instructions when wearing the ring-shaped interactive device to control the smart device to perform corresponding operations.

[0023] In this embodiment, the ring-shaped interactive device is a finger ring, which is worn on the user's finger. In other embodiments of the present application, the ring-shaped interactive device can also be in the form of a necklace, a bracelet, earrings, etc., which is convenient for the user to wear.

[0024] Please also read Figure 1 and Figure 2 The annular interactive device 100 of the embodiment of the present application includes an annular body 10, a piezoelectric module 20 and a magnetoelectric conversion module 30. An accommodating space 101 is formed in the annular body 10, the piezoelectric module 20 is connected to the annular body 10 and is located in the accommodating space 101, and the magnetoelectric conversion module 30 is located in the accommodating space 101.

[0025] The piezoelectric module 20 is used to convert mechanical energy into electrical energy according to the piezoelectric effect. When the piezoelectric module 20 is subjected to pressure, a first electrical signal is generated. The magnetoelectric conversion module 30 is used to convert electromagnetic energy into electrical energy according to the Hall effect. When a current flows through the magnetoelectric conversion module 30 and the magnetic field strength of the magnetic field passing through the magnetoelectric conversion module 30 changes, the magnetoelectric conversion module 30 generates a second electrical signal. When the user uses the annular interactive device 100, the annular interactive device 100 detects the user's pressing operation on the annular body 10 according to the first electrical signal or detects the user's rotating operation on the annular body 10 according to the second electrical signal. In this embodiment, the user's pressing operation on the annular body 10 refers to the process in which the user touches the surface of the annular body 10 and applies pressure to the surface of the annular body 10, and the user's rotating operation on the annular body 10 refers to the process in which the user touches the surface of the annular body 10 and causes the annular body 10 to rotate.

[0026] Please also read Figure 2 and Figure 3 In this embodiment, the piezoelectric module 20 includes a first electrode layer 21, a piezoelectric layer 23, and a second electrode layer 22 stacked in sequence. The first electrode layer 21 or the second electrode layer 22 is attached to the annular body 10. The first electrode layer 21 and the second electrode layer 22 are made of conductive materials, and the piezoelectric layer 23 is made of piezoelectric material. The piezoelectric layer 23 can be a polyvinylidene fluoride film (PVDF) or a lead zirconate titanate film (Lead Zirconate Titanate), and the first electrode layer 21 and the second electrode layer 22 can be silver paste electrodes.

[0027] ‌‌Piezoelectric effect is divided into positive piezoelectric effect and inverse piezoelectric effect. Positive piezoelectric effect refers to the conversion of mechanical energy into electrical energy, and inverse piezoelectric effect refers to the conversion of electrical energy into mechanical energy. The piezoelectric layer 23 uses the positive piezoelectric effect to convert the pressure (mechanical energy) received into a first electrical signal (electrical energy). When the piezoelectric layer 23 is subjected to pressure, polarization occurs inside (that is, the positive and negative charges inside the piezoelectric layer 23 move in opposite directions). After the first electrode layer 21 and the second electrode layer 22 receive positive and negative charges respectively, an electric potential difference is generated between the first electrode layer 21 and the second electrode layer 22, so that the first electrode layer 21 and the second electrode layer 22 output a first electrical signal.

[0028] When the user presses (touches) the outer surface of the annular body 10, and the position pressed on the annular body 10 corresponds to the position of the piezoelectric module 20 in the annular body 10, the piezoelectric layer 23 is subjected to pressure, and at this time, the first electrical signal is output between the first electrode layer 21 and the second electrode layer 22 as the interactive command input by the user. The first electrical signal can be a voltage signal.

[0029] Please refer to Figure 2 The annular body 10 includes a first annular structure 11 and a second annular structure 12. The inner diameter of the first annular structure 11 is greater than the outer diameter of the second annular structure 12, and the first annular structure 11 surrounds and is connected to the periphery of the second annular structure 12. The first annular structure 11 and the second annular structure 12 together enclose a receiving space 101. In this embodiment, a groove is formed on the outer side wall of the second annular structure 12 (the surface facing the first annular structure 11), and the first annular structure 11 is sleeved on the periphery of the second annular structure 12 and closes the opening of the groove, thereby forming the receiving space 101. The first annular structure 11 and the second annular structure 12 can rotate relative to each other, and the magnetoelectric conversion module 30 is used to sense the rotation angle of the first annular structure 11 relative to the second annular structure 12 or the moving distance of the first annular structure 11 relative to the second annular structure 12 to output a second electrical signal.

[0030] In this embodiment, the magneto-electric conversion module 30 includes a Hall sensor 31 and a plurality of magnets 32, wherein the Hall sensor 31 is disposed on the first annular structure 11. Among the plurality of magnets 32, one magnet 32 ​​is connected to the first annular structure 11, and the remaining magnets 32 are connected to the second annular structure 12 and are closely arranged in sequence (two adjacent magnets are in contact with each other). The number of magnets 32 located on the second annular structure 12 is greater than or equal to 4. Among the magnets 32 located on the second annular structure 12, the magnetic properties of each two adjacent magnets 32 are opposite.

[0031] The Hall sensor 21 outputs the second electrical signal according to the Hall effect. The Hall effect refers to the phenomenon that when a solid conductor is placed in a magnetic field and current flows through the conductor, the charge carriers in the conductor are deflected to one side by the Lorentz force, thereby generating a voltage (Hall voltage).

[0032] The first annular structure 11 and the second annular structure 12 rotate relative to each other (one of the first annular structure 11 and the second annular structure 12 is fixed and the other rotates, or the first annular structure 11 and the second annular structure 12 rotate simultaneously in opposite directions), and when current passes through the Hall sensor 21, the magnet 32 ​​arranged on the first annular structure 11 rotates around the axis of the second annular structure 12, that is, the relative position of the magnet 32 ​​arranged on the first annular structure 11 relative to the magnet 32 ​​arranged on the second annular structure 12 changes, so that the magnetic flux density (that is, the magnetic field strength) of the magnetic field passing through the Hall sensor 31 changes, so that the Hall sensor 31 outputs a second electrical signal that is perpendicular to both the current direction and the magnetic field direction to sense the angle or arc length of the magnet 32 ​​arranged on the first annular structure 11 rotating around the axis of the second annular structure 12. The angle of rotation of the magnet 32 ​​disposed on the first annular structure 11 around the axis of the second annular structure 12 is equivalent to the rotation angle of the first annular structure 11 relative to the second annular structure 12, and the arc length of rotation of the magnet 32 ​​disposed on the first annular structure 11 around the axis of the second annular structure 12 is equivalent to the moving distance of the first annular structure 11 relative to the second annular structure 12. The second electrical signal may be a voltage signal.

[0033] In this embodiment, the annular interactive device 100 further includes a gyroscope 40, which is connected to the annular body 10 and is located in the accommodating space 101, and is used to sense the movement of the annular interactive device 100 as a whole (that is, to sense the posture change of the annular interactive device 100 as a whole) to output a capacitive signal. The gyroscope 40 can be connected to the first annular structure 11 or to the second annular structure 12.

[0034] See also Figure 4In this embodiment, a two-dimensional elastic damping system is provided in the gyroscope 40, that is, the gyroscope 40 is provided with elastic members in two different directions at the same time. The gyroscope 40 includes a sensing object 41, a first spring 42, a second spring 43, a first capacitor 44, and a second capacitor 45. The sensing object 41 is a plate-like structure, one end of the first spring 42 and one end of the first capacitor 44 are respectively connected to two opposite sides of the sensing object 41, one end of the second spring 42 and one end of the second capacitor 45 are respectively connected to the other two opposite sides of the sensing object 41, and the other end of the first spring 42, the other end of the second spring 43, the other end of the first capacitor 44, and the other end of the second capacitor 45 are respectively connected to the inner wall of the gyroscope 40.

[0035] When the annular interactive device 100 as a whole moves in three-dimensional space (including translation, rotation, etc.), the sensing object 41 in the gyroscope 40 moves accordingly. When the sensing object 41 moves in the gyroscope 40, it will squeeze or stretch the first spring 42 and / or the second spring 43, so that the capacitance value of the first capacitor 44 and / or the capacitance value of the second capacitor 45 changes, thereby changing the capacitance difference between the first capacitor 44 and the second capacitor 45. At this time, the capacitance difference between the first capacitor 44 and the second capacitor 45 output by the gyroscope 40 represents the movement mode of the annular interactive device 100 in three-dimensional space (including translation distance, rotation angle, etc.).

[0036] Please refer to Figure 2 In this embodiment, the annular interactive device 100 also includes a wireless transmission module 50 and a power supply 60, both of which are buried in the second annular structure 12. The wireless transmission module 50 is electrically connected to the piezoelectric module 20, the magnetoelectric conversion module 30 and the gyroscope 40, respectively, and is used to send a wireless signal as an interactive instruction to an external smart device according to the received first electrical signal, the second electrical signal or the capacitance difference. The wireless transmission module 50 can be a Bluetooth or WiFi module. The power supply 60 is electrically connected to the Hall sensor 31, and is used to provide electrical energy to the Hall sensor 31, so that current flows through the Hall sensor 31.

[0037] See also Figure 5 Along the axial direction of the annular body 10, the width W1 of the first annular structure 11 is 6 to 15 mm, including the end value, and the width W2 of the second annular structure 12 is 8 to 15 mm, including the end value.

[0038] In summary, in the annular interactive device 100 of the present application, the piezoelectric module 20, the magnetoelectric conversion module 30 and the gyroscope 40 are all located in the accommodating space 101, and are used to generate the first electrical signal, the second electrical signal or the capacitance difference according to different operation types (pressing, rotating, waving) of the user, and the wireless transmission module 50 is used to send the interaction instruction to the smart device according to the first electrical signal, the second electrical signal or the capacitance difference, so as to implement the corresponding operation on the operation interface of the smart device. The annular interactive device 100 is small in size, and the annular design is more convenient for users to wear, and the operation type of the user is simple when using the annular interactive device 100, which improves the user's experience.

[0039] This application also provides a human-computer interaction system. Figure 6 The human-computer interaction system 1 of the embodiment of the present application includes the above-mentioned ring-shaped interactive device 100 and a smart device 200, and the smart device 200 is communicatively connected with the ring-shaped interactive device 100. The smart device 200 can be augmented reality glasses, virtual reality glasses, or mixed reality glasses. The smart device 200 is used to activate the corresponding function based on the interaction instruction sent by the ring-shaped interactive device 100.

[0040] Taking the example of a user wearing the annular interactive device 100 on a finger, when the user touches the first annular structure 11 of the annular interactive device 100, the piezoelectric module 20 is subjected to pressure, thereby generating a first electrical signal. After the smart device 200 receives the interactive instruction generated based on the first electrical signal through the wireless transmission module 50, the icon on the operation interface can be selected.

[0041] When the user rotates the first ring structure 11, the magnetic field strength of the magnetic field on the Hall sensor 31 in the magnetoelectric conversion module 30 changes, thereby generating a second electrical signal, and the smart device 200 can switch the display screen on the operation interface after receiving the interactive instruction generated based on the second electrical signal through the wireless transmission module 50. When the user changes the direction of rotating the first ring structure 11, the switching direction of the display screen on the operation interface will also change.

[0042] When the user's finger moves, the annular interactive device 100 as a whole moves in three-dimensional space. After the gyroscope 40 senses the movement of the annular interactive device 100, it outputs a capacitance difference. After the smart device 200 receives the interaction instruction generated based on the capacitance difference through the wireless transmission module 50, it can identify the movement mode of the annular interactive device 100, so that the cursor on the operation interface moves synchronously with the annular interactive device 100.

[0043] As can be seen from the above, the user can achieve corresponding operations on the smart device 200 through simple operations on the ring-shaped interactive device 100, that is, the user can interact with the smart device 200 through the ring-shaped interactive device 100. The ring-shaped interactive device 100 is simple to operate and easy to carry, which can improve the user experience.

[0044] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of protection claimed in the present application.

Claims

1. A ring-shaped interactive device, characterized in that: include: The annular main body is formed with a receiving space; A piezoelectric module connected to the annular body and located in the accommodation space, wherein the piezoelectric module generates a first electrical signal when subjected to pressure; as well as A magnetoelectric conversion module is located in the accommodation space, and when the magnetic field strength of the magnetic field passing through the magnetoelectric conversion module changes, the magnetoelectric conversion module generates a second electrical signal; The annular interactive device is used to detect a user's pressing operation on the annular body according to the first electrical signal and / or to detect a user's rotating operation on the annular body according to the second electrical signal.

2. The ring-shaped interactive device according to claim 1, characterized in that: The piezoelectric module comprises a first electrode layer, a piezoelectric layer, and a second electrode layer stacked in sequence, wherein the first electrode layer or the second electrode layer is attached to the annular body; When the piezoelectric layer is subjected to pressure, a potential difference is generated between the first electrode layer and the second electrode layer, thereby outputting the first electrical signal.

3. The annular interactive device according to claim 2, characterized in that: The piezoelectric layer may be a polyvinylidene fluoride film or a lead zirconate titanate film, and the first electrode layer and the second electrode layer may be silver paste electrodes.

4. The ring-shaped interactive device according to claim 1, characterized in that: The annular body comprises a first annular structure and a second annular structure, the first annular structure surrounds and is connected to the periphery of the second annular structure, and the first annular structure and the second annular structure together enclose the accommodation space; The first annular structure and the second annular structure can rotate relative to each other, and the magnetoelectric conversion module is used to sense the rotation angle of the first annular structure relative to the second annular structure or the movement distance of the first annular structure relative to the second annular structure to output the second electrical signal.

5. The ring-shaped interactive device according to claim 4, characterized in that: The magnetoelectric conversion module includes a Hall sensor and a plurality of magnets, and the Hall sensor is arranged on the first annular structure; Among the multiple magnets, one magnet is connected to the first annular structure, and the remaining magnets are connected to the second annular structure and are closely arranged in sequence; among the magnets located on the second annular structure, the magnetic properties of each two adjacent magnets are opposite.

6. The ring-shaped interactive device according to claim 1, characterized in that: The annular interactive device further comprises a gyroscope, which is connected to the annular body and located in the accommodating space, and is used for sensing the movement of the annular interactive device as a whole to output a capacitance signal.

7. The ring-shaped interactive device according to claim 6, characterized in that: The gyroscope comprises a sensing object, a first spring, a second spring, a first capacitor and a second capacitor, wherein the sensing object is a plate-shaped structure, the first spring and the first capacitor are respectively connected to two opposite sides of the sensing object, and the second spring and the second capacitor are respectively connected to the other two opposite sides of the sensing object; When the annular interactive device moves, the sensing object moves accordingly, causing the capacitance value of the first capacitor and / or the capacitance value of the second capacitor to change, thereby causing the capacitance difference between the first capacitor and the second capacitor to change, and the gyroscope is used to output the capacitance difference.

8. The annular interactive device according to any one of claims 1 to 7, characterized in that: The annular interactive device further comprises a wireless transmission module and a power source, and the wireless transmission module and the power source are both buried in the second annular structure; The wireless transmission module is electrically connected to the piezoelectric module, the magnetoelectric conversion module and the gyroscope respectively, and is used to send interaction instructions according to the received first electrical signal, the second electrical signal or the capacitance difference; the power supply is electrically connected to the Hall sensor, and is used to provide electrical energy to the Hall sensor.

9. The ring-shaped interactive device according to claim 1, characterized in that: Along the axial direction of the annular body, the width of the first annular structure is 6 to 15 mm, including the endpoint values, and the width of the second annular structure is 8 to 15 mm, including the endpoint values.

10. A human-computer interaction system, characterized in that: include: The annular interactive device as claimed in any one of claims 1 to 9; as well as The smart device is communicatively connected with the ring-shaped interactive device.

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