Smart ring and gesture detection method

Abstract

The application discloses an intelligent ring and a gesture detection method, and relates to the technical field of intelligent wearable devices, wherein the intelligent ring comprises an outer ring, a middle frame, an inner ring and a plurality of locking electrodes, and a circuit board is arranged in the outer ring; the outer ring is rotatably sleeved on the middle frame, and a plurality of rotating holes penetrating in the radial direction of the intelligent ring are arranged on the middle frame at intervals along the circumference of the middle frame; the inner ring is embedded in the middle frame, a plurality of elastic abutting portions are arranged on the inner ring at intervals along the circumference of the inner ring, the elastic abutting portions are used for contacting the body surface of a wearer, the number of the elastic abutting portions is consistent with and one-to-one corresponds to the number of the rotating holes; the number of the locking electrodes is consistent with and one-to-one corresponds to the number of the rotating holes, and each locking electrode is radially arranged in the corresponding rotating hole. The application acquires body electric data in different directions of a finger through the plurality of locking electrodes, analyzes the gesture of a user according to the body electric data, and is more accurate in gesture detection, and the user experience is improved without being triggered by arm movement.

Description

Technical Field

[0001] The present invention relates to the technical field of smart wearable devices, and in particular to a smart ring and a gesture detection method. Background Art

[0002] Finger rings are a type of jewelry people wear daily. They come into close contact with the skin, are small and difficult to detect, and are therefore a very convenient way to monitor health. Consequently, smart rings are becoming increasingly popular among smart wearable devices. However, due to limitations in size and battery life, smart rings offer limited functionality, primarily enabling human-computer interaction, collecting user activity information, and performing simple heart rate monitoring.

[0003] Existing smart rings achieve human-computer interaction functions by mostly using accelerometers within the smart rings to identify the user's motion posture and thus gestures. However, smart rings are worn on the fingers. If the goal is only to capture finger movements, the accelerometers may be affected by arm movements, resulting in false triggering or inaccurate gesture detection results, affecting the user experience. Summary of the Invention

[0004] The main purpose of the present invention is to provide a smart ring and a gesture detection method, which aims to solve the problem in the prior art that smart rings use acceleration sensors to detect gestures, resulting in false triggering or inaccurate gesture detection results.

[0005] To achieve the above objectives, the present invention proposes a smart ring comprising:

[0006] an outer ring, wherein a circuit board is disposed inside the outer ring;

[0007] A middle frame, wherein the outer ring is rotatably sleeved on the outside of the middle frame, and the middle frame is provided with a plurality of rotation holes extending radially through the smart ring at intervals along its circumference;

[0008] an inner ring, the inner ring being embedded in the middle frame, and the inner side of the inner ring being surrounded by a wearing hole for the wearer's fingers to pass through, the inner side of the inner ring being provided with a plurality of elastic abutment portions spaced along its circumference, the elastic abutment portions being configured to contact the wearer's body surface, the number of the elastic abutment portions being consistent with and corresponding to the number of the rotating holes;

[0009] Multiple locking electrodes, the number of the locking electrodes is consistent with the number of the rotating holes and corresponds one to one, each locking electrode is radially inserted into the corresponding rotating hole, and the two ends of each locking electrode in the radial direction are respectively an inner end and an outer end, wherein a hinge position is formed on the locking electrode between the inner end and the outer end, and the hinge position is hinged to the middle frame, the inner end is connected to the outer ring, and the outer end abuts and conducts with the corresponding elastic abutment portion, so that each locking electrode can detect the wearer's body electrical data and send it to the circuit board, and when the outer ring rotates relative to the middle frame, it drives the outer end to move, so that the inner end swings relative to the middle frame, and pushes inward or outward away from the corresponding elastic abutment portion.

[0010] In one embodiment, a plurality of rotating seats are provided on the inner circumference of the outer ring at positions corresponding to the rotating holes, a rotating shaft is provided on the wall of each rotating hole, the outer end is hinged to the rotating seat, a through hole is provided at the hinge position, and the rotating shaft is rotatably mounted in the through hole;

[0011] When the outer ring rotates relative to the middle frame in a first direction, it can drive the inner end to swing and move toward the elastic abutment portion to push the elastic abutment portion inward;

[0012] When the outer ring rotates relative to the middle frame in the second direction, it can drive the inner end to swing and move in a direction away from the elastic abutment portion, so as to move outward away from the elastic abutment portion;

[0013] The first direction is opposite to the second direction.

[0014] In one embodiment, the locking electrode includes a connecting rod and an abutment block connected to each other, the end of the connecting rod away from the abutment block forms the outer end, the abutment block forms the inner end, and the end of the abutment block away from the connecting rod forms an abutment surface for abutting against a finger, and the abutment surface is an inwardly protruding arc-shaped abutment surface. The abutment block and the connecting rod are set at an angle so that the abutment block can move inward or outward when the outer ring rotates relative to the middle frame.

[0015] In one embodiment, the middle frame is provided with a plurality of spacer blocks at intervals along its circumference, and the rotation hole is formed between any two adjacent spacer blocks. The spacer blocks are used to abut against the adjacent connecting rods to limit the locking switch.

[0016] In one embodiment, a snap-fit ​​piece is provided on the inner periphery of the outer ring, and a latching tooth is provided on the outer periphery of the middle frame. The snap-fit ​​piece is used to slide with the latching tooth when the outer ring rotates relative to the middle frame, and to snap-fit ​​with the latching tooth when the outer ring is stationary, so as to lock the outer ring and the middle frame.

[0017] In one embodiment, the snap-fitting member includes a buckle and an elastic member, and the buckle is connected to the inner circumference of the outer ring through the elastic member. The elastic member is compressed when the buckle is squeezed by the middle frame, and can press the buckle against the tooth through elastic restoring force to achieve a snap-fit ​​fit.

[0018] In one embodiment, any two adjacent elastic abutting portions on the inner ring are connected by an insulating material member;

[0019] or,

[0020] The inner ring is made of anisotropic conductive film material.

[0021] The present invention also provides a gesture detection method, which is applied to a smart finger ring. The smart finger ring includes an outer ring, a middle frame, an inner ring and a plurality of locking electrodes. A circuit board is provided in the outer ring, and the outer ring is rotatably sleeved on the outside of the middle frame. The middle frame is provided with a plurality of rotation holes that pass through the smart finger ring radially at intervals along its circumference. The inner ring is embedded in the middle frame, and a plurality of elastic abutment portions are provided on the inner side of the inner ring at intervals along its circumference. The number of the locking electrodes is consistent with the number of the rotation holes and corresponds one to one. Each locking electrode is radially inserted into the corresponding rotation hole, and the two ends of each locking electrode in the radial direction are an inner end and an outer end, respectively. A hinge position is formed on the locking electrode between the inner end and the outer end, and the hinge position is hinged to the middle frame. The inner end is connected to the outer ring, and the outer end abuts and conducts with the corresponding elastic abutment portion. The gesture detection method includes the following steps:

[0022] Putting the smart ring on the wearer's finger;

[0023] Rotating the outer ring so that the inner end swings relative to the middle frame and drives the locking electrode to push the corresponding elastic abutment portion inward;

[0024] The locking electrode detects the wearer's body electrical data and sends it to the circuit board, and the circuit board analyzes the wearer's gesture according to the body electrical data.

[0025] In one embodiment, the locking electrode detects the wearer's body electrical data and sends it to the circuit board, and the circuit board analyzes the wearer's gesture according to the body electrical data, including:

[0026] Setting one of the locking electrodes as a positive electrode and the remaining locking electrodes as negative electrodes, sequentially acquiring voltage data and current data between the positive electrode and each of the negative electrodes, and using the acquired voltage data and current data as the body electrical data;

[0027] The body electrical data is sent to the circuit board, and the circuit board calculates corresponding impedance data according to the voltage data and current data, and obtains image information of the finger cross section through the impedance data;

[0028] The wearer's muscle cross-sectional changes are acquired according to the image information, and the wearer's gestures are analyzed according to the muscle cross-sectional changes.

[0029] In one embodiment, the locking electrode detects the wearer's body electrical data and sends it to the circuit board, and the circuit board analyzes the wearer's gesture according to the body electrical data, including:

[0030] Each locking electrode acquires body surface current data of the wearer, and uses the body surface current data as the body electrical data;

[0031] The body electrical data is sent to the circuit board, and the circuit board obtains the electromyogram of the finger according to the current data, and analyzes the wearer's gesture according to the electromyogram.

[0032] The technical solution of the present invention is to set a radially extending locking electrode in the smart ring. After the wearer puts on the smart ring, by rotating the outer ring, the outer ring drives the outer end of the locking electrode to move. Since the hinged position of the locking electrode is hinged to the middle frame, and the middle frame and the inner ring are stationary, the hinged position of the locking electrode is fixed to the middle frame, and only the inner end is driven by the outer end to swing, so that the inner end pushes the elastic abutment part inward, so that it comes close to the wearer's finger skin, and the elastic abutment part is connected to the locking electrode, which is convenient for detecting the wearer's body electrical data and sending the body electrical data to the circuit board, so as to obtain the wearer's gesture through the body electrical data. The present invention drives the locking electrode to lift or relax the elastic abutment part through the outer ring. When lifted, the locking electrode detects body electrical data more accurately, and when relaxed, it is easier to wear or take off the smart ring. The body electrical data of the fingers in different directions are obtained through multiple locking electrodes, so the wearer's gestures are analyzed based on the body electrical data. Compared with the traditional acceleration sensor method, the locking electrode will not be affected by the arm posture, the gesture detection is more accurate, and it will not be triggered by arm movements, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1A schematic diagram of the structure of a smart ring provided by an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the exploded structure of a smart ring provided by one embodiment of the present invention;

[0036] Figure 3 A schematic cross-sectional view of a smart ring according to an embodiment of the present invention;

[0037] Figure 4 A schematic cross-sectional view of a portion of a smart ring provided by one embodiment of the present invention;

[0038] Figure 5 A schematic cross-sectional view of another portion of the smart ring provided by one embodiment of the present invention;

[0039] Figure 6 A flowchart of a gesture detection method according to an embodiment of the present invention;

[0040] Figure 7 A flowchart of a gesture detection method provided by another embodiment of the present invention;

[0041] Figure 8 This is a flowchart of a gesture detection method provided by yet another embodiment of the present invention.

[0042] Description of Figure Numbers:

[0043] 100. Smart ring; 1. Outer ring; 11. Circuit board; 12. Rotating seat; 13. Snap-fit ​​part; 131. Buckle; 132. Elastic part; 2. Middle frame; 21. Rotating hole; 22. Separator; 23. Gear; 3. Inner ring; 31. Elastic abutment; 4. Locking electrode; 41. Inner end; 42. Outer end; 43. Hinge position; 431. Through hole; 44. Connecting rod; 45. Abutment block; 451. Abutment surface.

[0044] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] Existing smart rings achieve human-computer interaction functions by mostly using accelerometers within the smart rings to identify the user's motion posture and thus gestures. However, smart rings are worn on the fingers. If the goal is only to capture finger movements, the accelerometers may be affected by arm movements, resulting in false triggering or inaccurate gesture detection results, affecting the user experience.

[0049] To solve the above problems, the present invention proposes a smart ring 100 .

[0050] Please combine Figures 1 to 3The smart ring 100 of this embodiment includes an outer ring 1, a middle frame 2, an inner ring 3 and a plurality of locking electrodes 4. A circuit board 11 is provided inside the outer ring 1; the outer ring 1 is rotatably sleeved on the outside of the middle frame 2, and the middle frame 2 is provided with a plurality of rotation holes 21 radially penetrating the smart ring 100 along its circumferential direction; the inner ring 3 is embedded in the middle frame 2, and the inner side of the inner ring 3 is surrounded by a wearing hole for the wearer's finger to pass through, and a plurality of elastic abutment portions 31 are provided on the inner ring 3 along its circumferential direction. The elastic abutment portions 31 are used to contact the wearer's body surface, and the number of the elastic abutment portions 31 is consistent with the number of the rotation holes 21 and corresponds one to one; the number of the locking electrodes 4 is consistent with the number of the rotation holes 21 Consistent and one-to-one corresponding, each locking electrode 4 is radially penetrated into the corresponding rotating hole 21, and the two ends of each locking electrode 4 in the radial direction are an inner end 41 and an outer end 42, wherein a hinge position 43 is formed on the locking electrode 4 between the inner end 41 and the outer end 42, and the hinge position 43 is hinged to the middle frame 2, the inner end 41 is connected to the outer ring 1, and the outer end 42 is in contact with and conductive to the corresponding elastic abutment portion 31, so that each locking electrode 4 can detect the wearer's body electrical data and send it to the circuit board 11, and when the outer ring 1 rotates relative to the middle frame 2, it drives the outer end 42 to move, so that the inner end 41 swings relative to the middle frame 2, and pushes inward or outward away from the corresponding elastic abutment portion 31.

[0051] The technical solution of the present invention is to set a locking electrode 4 extending radially along the smart ring inside the smart ring 100. After the wearer puts on the smart ring 100, by rotating the outer ring 1, the outer ring 1 drives the outer end 42 of the locking electrode 4 to move. Since the hinge 43 of the locking electrode 4 is hinged to the middle frame 2, and the middle frame 2 and the inner ring 3 are stationary, the hinge 43 of the locking electrode 4 is fixed to the middle frame 2, and only the inner end 41 is driven by the outer end 42 to swing, so that the inner end 41 pushes the elastic abutment 31 inward, so that it is close to the wearer's finger skin. The elastic abutment 31 is made of conductive material and is electrically connected to the locking electrode 4, which facilitates the detection of the wearer's body electrical data and sends the body electrical data to the circuit board 11, thereby obtaining the wearer's gesture through the body electrical data. The present invention drives the locking electrode 4 to lift or relax the elastic abutment part 31 through the outer ring 1. When lifted, the locking electrode 4 detects the body electrical data more accurately, and when relaxed, it is easier to wear or take off the smart ring 100. The body electrical data of the fingers in different directions are obtained through multiple locking electrodes 4, so that the user's gestures are analyzed according to the body electrical data. Compared with the traditional acceleration sensor method, the locking electrode 4 will not be affected by the arm posture, and the gesture detection is more accurate and will not be triggered by arm movements, thereby improving the user experience.

[0052] Please combine Figure 3 and Figure 5In one embodiment, a plurality of rotating seats 12 are provided on the inner circumference of the outer ring 1 at positions corresponding to the rotating holes 21, and a rotating shaft is provided on the hole wall of each rotating hole 21. The outer end 42 is hinged to the rotating seat 12, and a through hole 431 is provided at the hinge position 43. The rotating shaft is rotatably installed in the through hole 431, so that when the outer ring 1 rotates relative to the middle frame 2 along the first direction, it can drive the inner end 41 to swing and move toward the direction close to the elastic abutment 31 to push the elastic abutment 31 inward; and when the outer ring 1 rotates relative to the middle frame 2 along the second direction, it can drive the inner end 41 to swing and move toward the direction away from the elastic abutment 31 to move outward away from the elastic abutment 31, and the first direction is opposite to the second direction.

[0053] It can be understood that, among the first direction and the second direction, one is a clockwise direction and the other is a counterclockwise direction.

[0054] By disposing multiple rotating seats 12 on the inner circumference of the outer ring 1 and a rotating shaft on the wall of the rotating hole 21, the outer end 42 of each locking electrode 4 can be hingedly connected to the corresponding rotating seat 12 and rotatably engaged with the rotating shaft via the through hole 431 on the hinge position 43. This structure enables that when the outer ring 1 rotates in a first direction relative to the middle frame 2, the rotating seat 12 drives the outer end 42 of the locking electrode 4 to swing about the rotating shaft, causing the inner end 41 to move toward the elastic abutment portion 31, thereby lifting the elastic abutment portion 31 and making close contact with the wearer's skin, achieving stable conduction of body electrical data. The first and second directions make it easy for users to quickly and easily put on or take off the smart ring 100. The coordination between the rotating seat 12 and the rotating shaft makes the rotation of the locking electrode 4 more stable and controllable, avoiding the inner end 41 of the locking electrode 4 from deflecting and failing to contact the body surface due to uneven rotation of the outer ring 1, thereby improving the reliability of the contact of the locking electrode 4 and the flexibility of adjustment.

[0055] Furthermore, the through hole 431 is arranged on a side close to the outer end 42, so that the rotating arm of the inner end 41 is longer. When the outer ring 1 rotates a smaller angle, the locking electrode 4 can move inward and lift the elastic abutment part 31, thereby improving the user experience.

[0056] In one embodiment, the locking electrode 4 includes a connecting rod 44 and an abutment block 45 that are connected to each other. The end of the connecting rod 44 away from the abutment block 45 forms an outer end 42, and the abutment block 45 forms an inner end 41. The end of the abutment block 45 away from the connecting rod 44 forms an abutment surface 451 for abutting against a finger. The abutment surface 451 is an inwardly convex arc-shaped abutment surface. The abutment block 45 and the connecting rod 44 are set at an angle so that the abutment block 45 can move inward or outward when the outer ring 1 rotates relative to the middle frame 2.

[0057] By setting an angle between the abutment block 45 and the connecting rod 44, the movement trajectory of the abutment block 45 is more consistent with the direction toward the elastic abutment portion 31 during the rotation of the locking electrode 4, so that the abutment block 45 can more efficiently achieve linear or surface contact with the elastic abutment portion 31 when swinging. Compared with the structure without an angle or a straight line connection, the setting with an angle can enable the abutment block 45 to achieve a tighter abutment effect at a smaller rotation angle, thereby improving the contact stability between the locking electrode 4 and the skin. At the same time, the abutment surface 451 is set in an inwardly convex arc shape, which makes contact with the user's body surface softer, will not cause discomfort to the user, and improves the user experience.

[0058] In one embodiment, the middle frame 2 is provided with a plurality of spacer blocks 22 at intervals along its circumference, and a rotation hole 21 is formed between any two adjacent spacer blocks 22 . The spacer blocks 22 are used to abut against adjacent connecting rods 44 to limit the locking electrode 4 .

[0059] At the same time, the partition block 22 is set to be a structure for abutting against the connecting rod 44 to limit the locking electrode 4. It can not only clearly define the installation position of the locking electrode 4 in the middle frame 2 and prevent its radial or circumferential displacement, but also play a limiting effect during the rotation of the locking electrode 4, avoiding excessive swinging of the connecting rod 44, thereby improving the accuracy of the rotation.

[0060] Please combine Figure 3 and Figure 4 In one embodiment, a snap-fit ​​member 13 is provided on the inner periphery of the outer ring 1, and a latching tooth 23 is provided on the outer periphery of the middle frame 2. The snap-fit ​​member 13 is used to slide with the latching tooth 23 when the outer ring 1 rotates relative to the middle frame 2, and to snap-fit ​​with the latching tooth 23 when the outer ring 1 is stationary, so as to lock the outer ring 1 and the middle frame 2.

[0061] It can be understood that the clamping member 13 can be made of elastic material, so that when the outer ring 1 rotates, it is driven to undergo elastic deformation and move between different teeth 23 to achieve a sliding fit. When the outer ring 1 stops rotating, it is pressed against the teeth 23 through elastic restoring force. The clamping member 13 can form a sliding fit with the teeth 23 during the rotation of the outer ring 1, and achieve a snap fit with the teeth 23 when the outer ring 1 stops rotating, thereby achieving a locking ability between the outer ring 1 and the middle frame 2 while realizing the rotation adjustment function, effectively preventing accidental rotation caused by external force or shaking, and improving the stability of the smart ring 100.

[0062] In one embodiment, the snap-fit ​​member 13 includes a buckle 131 and an elastic member 132. The buckle 131 is connected to the inner circumference of the outer ring 1 through the elastic member 132. The elastic member 132 is compressed when the buckle 131 is squeezed by the middle frame 2, and can press the buckle 131 against the tooth 23 through elastic restoring force to achieve a snap fit.

[0063] The buckle 131 is connected to the outer ring 1 through the elastic member 132, so that the buckle 131 can compress the elastic member 132 when being squeezed by the latch teeth 23 on the outer periphery of the middle frame 2 during the rotation of the outer ring 1 relative to the middle frame 2, thereby smoothly sliding over each latch tooth 23. After the outer ring 1 stops rotating, the elastic member 132 relies on its own elastic restoring force to automatically reset the buckle 131 and press against the latch teeth 23, achieving a stable snap fit, which not only ensures the smoothness of the rotation process and the segmented sense of positioning, but also provides a stable clamping function after the rotation stops, preventing the outer ring 1 from shifting due to vibration or accidental touch.

[0064] In one embodiment, any two adjacent elastic contact portions 31 on the inner ring are connected via an insulating material member.

[0065] Any two adjacent elastic abutment parts 31 are connected by insulating material parts, which helps to prevent electrical signal crosstalk between the elastic abutment parts 31 and ensures that each locking electrode 4 only receives the body electrical data of its corresponding part, thereby improving the independence and accuracy of signal acquisition, and further improving the accuracy of gesture detection.

[0066] In one embodiment, inner ring 3 is made of anisotropic conductive film. This material allows for vertical conductivity while maintaining insulation in the horizontal direction. This not only effectively simplifies the internal structural design but also prevents interference caused by lateral signal diffusion within the inner ring 3 layers. This improves the accuracy, stability, and anti-interference capabilities of body electrical data acquisition, thereby enhancing the accuracy of gesture detection.

[0067] Please combine Figure 1 、 Figure 2 and Figure 6 The present invention also provides a gesture detection method, which is applied to a smart ring 100. The smart ring 100 includes an outer ring 1, a middle frame 2, an inner ring 3 and a plurality of locking electrodes 4. A circuit board 11 is provided inside the outer ring 1. The outer ring 1 is rotatably mounted on the outside of the middle frame 2. The middle frame 2 is provided with a plurality of rotating holes 21 extending radially along the smart ring 100 at intervals along its circumference. The inner ring 3 is embedded in the middle frame 2, and a plurality of elastic abutment portions 31 are provided on the inner side of the inner ring 3 at intervals along its circumference. The locking electrodes 4 are provided with a plurality of elastic abutment portions 31 at intervals along its circumference. The number of 4 is consistent with the number of rotating holes 21 and corresponds one to one. Each locking electrode 4 is radially inserted into the corresponding rotating hole 21. The two ends of each locking electrode 4 in the radial direction are an inner end 41 and an outer end 42, respectively. A hinge portion 43 is formed between the inner end 41 and the outer end 42 on the locking electrode 4. The hinge portion 43 is hinged to the middle frame 2. The inner end 41 is connected to the outer ring 1, and the outer end 42 is in contact with and conductive to the corresponding elastic abutment portion 31. The gesture detection method includes the following steps:

[0068] S100: putting the smart ring on the wearer's finger;

[0069] The wearer puts the smart ring 100 on any finger that is performing an action;

[0070] S200: rotating the outer ring so that the inner end swings relative to the middle frame, and drives the locking electrode to push the corresponding elastic abutment portion inward;

[0071] Rotate the outer ring until the locking electrode 4 lifts up the elastic abutment portion 31. The user feels a slight abutment from their finger, which means the rotation is complete.

[0072] S300: The locking electrode detects the wearer's body electrical data and sends it to the circuit board, and the circuit board analyzes the communicator's gesture based on the body electrical data.

[0073] The present invention uses the above-mentioned gesture detection method to drive each locking electrode 4 to lift the elastic abutment portion 31 through the outer ring 1, and obtains the body electrical data of the finger in different directions through multiple locking electrodes 4, thereby analyzing the user's gesture based on the body electrical data. Compared with the traditional acceleration sensor method, the locking electrode 4 will not be affected by the arm posture, and the gesture detection is more accurate, and will not be triggered by arm movements, thereby improving the user experience.

[0074] The specific structure of the smart ring 100 refers to the above embodiments. Since the gesture detection method adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0075] See also Figure 7 In another embodiment, step S300 includes:

[0076] S310a: setting one of the locking electrodes as a positive electrode and the other locking electrodes as negative electrodes, sequentially acquiring voltage data and current data between the positive electrode and each of the negative electrodes, and using the acquired voltage data and current data as the body electrical data;

[0077] S320a: Sending the body electrical data to the circuit board, the circuit board calculating corresponding impedance data according to the voltage data and current data, and acquiring image information of the finger cross section through the impedance data;

[0078] It should be noted that the image information of the finger cross section refers to a simulated image generated based on the impedance data, and is not a real finger cross-section image, nor is it an image obtained after cutting the finger.

[0079] S330a: Obtain changes in the wearer's muscle cross-section according to the image information, and analyze the wearer's gesture according to the changes in the muscle cross-section.

[0080] By selecting a locking electrode 4 as the positive electrode and the rest as the negative electrodes, and measuring the voltage and current data between the positive electrode and each negative electrode in turn, not only can the body electrical data in multiple directions be fully acquired, but the formed data also has spatial distribution characteristics, which is conducive to constructing a high-precision finger cross-sectional electrical impedance image; the above voltage and current data are further converted into impedance information through the circuit board 11, and the cross-sectional change image of the finger muscles is restored through electrical impedance tomography technology. Compared with the traditional method of relying solely on acceleration sensors to judge dynamic movements, this method has the ability to recognize static gestures, micro-movements and even changes in muscle tension; finally, by analyzing gesture movements through the dynamic changes of muscle cross-sectional images, not only the accuracy of gesture recognition is significantly improved, but also the problem of misrecognition caused by large-scale arm movements is effectively avoided.

[0081] See also Figure 8 In yet another embodiment, step S300 includes:

[0082] S310b: Each locking electrode obtains the wearer's body surface current data, and uses the body surface current data as the body electrical data;

[0083] S320b: Sending the body electrical data to the circuit board, the circuit board obtains the electromyogram of the finger according to the current data, and analyzes the wearer's gesture according to the electromyogram.

[0084] Directly collecting EMG signals accurately reflects the electrical activity of finger muscles, capturing subtle changes in muscle contraction and relaxation, thereby enabling highly sensitive gesture recognition. Furthermore, compared to traditional accelerometers, EMG data is less affected by large-scale arm movements, preventing false triggering and improving recognition accuracy. Real-time monitoring of EMG signals enables fast gesture detection response, making it suitable for dynamic interaction scenarios.

[0085] The above are merely optional embodiments of the present invention and do not limit the scope of protection of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields within the concept of the present invention are included in the scope of protection of the present invention.

Claims

1. A smart ring, characterized in that: include: an outer ring, wherein a circuit board is disposed inside the outer ring; A middle frame, wherein the outer ring is rotatably sleeved on the outside of the middle frame, and the middle frame is provided with a plurality of rotation holes extending radially through the smart ring at intervals along its circumference; an inner ring, the inner ring being embedded in the middle frame, and the inner side of the inner ring being surrounded by a wearing hole for the wearer's fingers to pass through, the inner side of the inner ring being provided with a plurality of elastic abutment portions spaced along its circumference, the elastic abutment portions being configured to contact the wearer's body surface, the number of the elastic abutment portions being consistent with and corresponding to the number of the rotating holes; Multiple locking electrodes, the number of the locking electrodes is consistent with the number of the rotating holes and corresponds one to one, each locking electrode is radially inserted into the corresponding rotating hole, and the two ends of each locking electrode in the radial direction are respectively an inner end and an outer end, wherein a hinge position is formed on the locking electrode between the inner end and the outer end, and the hinge position is hinged to the middle frame, the inner end is connected to the outer ring, and the outer end abuts and conducts with the corresponding elastic abutment portion, so that each locking electrode can detect the wearer's body electrical data and send it to the circuit board, and when the outer ring rotates relative to the middle frame, it drives the outer end to move, so that the inner end swings relative to the middle frame, and pushes inward or outward away from the corresponding elastic abutment portion.

2. The smart ring according to claim 1, wherein: A plurality of rotating seats are provided on the inner circumference of the outer ring at positions corresponding to the rotating holes, a rotating shaft is provided on the hole wall of each rotating hole, the outer end is hinged to the rotating seat, a through hole is provided at the hinge position, and the rotating shaft is rotatably mounted on the through hole; When the outer ring rotates relative to the middle frame in a first direction, it can drive the inner end to swing and move toward the elastic abutment portion to push the elastic abutment portion inward; When the outer ring rotates relative to the middle frame in the second direction, it can drive the inner end to swing and move in a direction away from the elastic abutment portion, so as to move outward away from the elastic abutment portion; The first direction is opposite to the second direction.

3. The smart ring according to claim 2, wherein: The locking electrode includes a connecting rod and an abutment block that are connected to each other. The end of the connecting rod away from the abutment block forms the outer end, and the abutment block forms the inner end. The end of the abutment block away from the connecting rod forms an abutment surface for abutting against a finger, and the abutment surface is an inwardly convex arc abutment surface. The abutment block and the connecting rod are arranged at an angle so that the abutment block can move inward or outward when the outer ring rotates relative to the middle frame.

4. The smart ring according to claim 3, wherein: The middle frame is provided with a plurality of spacer blocks at intervals along its circumference, and the rotation hole is formed between any two adjacent spacer blocks. The spacer blocks are used to abut against the adjacent connecting rods to limit the locking switch.

5. The smart ring according to any one of claims 1 to 4, characterized in that: The inner periphery of the outer ring is provided with a snap-fit ​​piece, and the outer periphery of the middle frame is provided with a latching tooth. The snap-fit ​​piece is used to slide with the latching tooth when the outer ring rotates relative to the middle frame, and to snap-fit ​​with the latching tooth when the outer ring is stationary, so as to lock the outer ring and the middle frame.

6. The smart ring according to claim 5, characterized in that: The snap-fitting part includes a buckle and an elastic part. The buckle is connected to the inner circumference of the outer ring through the elastic part. The elastic part is compressed when the buckle is squeezed by the middle frame, and can press the buckle against the tooth through elastic restoring force to achieve a snap-fit ​​fit.

7. The smart ring according to any one of claims 1 to 4, characterized in that: Any two adjacent elastic contact portions on the inner ring are connected by an insulating material component; or, The inner ring is made of anisotropic conductive film material.

8. A gesture detection method, characterized in that: Applied to a smart finger ring, the smart finger ring includes an outer ring, a middle frame, an inner ring and a plurality of locking electrodes, a circuit board is provided in the outer ring, the outer ring is rotatably sleeved on the outside of the middle frame, the middle frame is provided with a plurality of rotation holes radially penetrating the smart finger ring at intervals along its circumference, the inner ring is embedded in the middle frame, and the inner side of the inner ring is provided with a plurality of elastic abutment portions at intervals along its circumference, the number of the locking electrodes is consistent with the number of the rotation holes and corresponds one to one, each of the locking electrodes is radially penetrated in the corresponding rotation hole, and the radial ends of each locking electrode are respectively an inner end and an outer end, wherein a hinge position is formed on the locking electrode between the inner end and the outer end, the hinge position is hinged to the middle frame, the inner end is connected to the outer ring, and the outer end abuts and conducts with the corresponding elastic abutment portion, and the gesture detection method includes the following steps: Putting the smart ring on the wearer's finger; Rotating the outer ring so that the inner end swings relative to the middle frame and drives the locking electrode to push the corresponding elastic abutment portion inward; The locking electrode detects the wearer's body electrical data and sends it to the circuit board, and the circuit board analyzes the wearer's gesture according to the body electrical data.

9. The gesture detection method according to claim 8, wherein: The locking electrode detects the wearer's body electrical data and sends it to the circuit board, and the circuit board analyzes the wearer's gesture according to the body electrical data, including: Setting one of the locking electrodes as a positive electrode and the remaining locking electrodes as negative electrodes, sequentially acquiring voltage data and current data between the positive electrode and each of the negative electrodes, and using the acquired voltage data and current data as the body electrical data; The body electrical data is sent to the circuit board, and the circuit board calculates corresponding impedance data according to the voltage data and current data, and obtains image information of the finger cross section through the impedance data; The wearer's muscle cross-sectional changes are acquired according to the image information, and the wearer's gestures are analyzed according to the muscle cross-sectional changes.

10. The gesture detection method according to claim 8, wherein: The locking electrode detects the wearer's body electrical data and sends it to the circuit board, and the circuit board analyzes the wearer's gesture according to the body electrical data, including: Each locking electrode acquires body surface current data of the wearer, and uses the body surface current data as the body electrical data; The body electrical data is sent to the circuit board, and the circuit board obtains the electromyogram of the finger according to the current data, and analyzes the wearer's gesture according to the electromyogram.

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