Smart ring and heart sound detection control method

Abstract

This invention relates to the field of smart wearable technology, and particularly to a smart ring and a heart sound detection and control method. The smart ring includes an outer shell, an inner shell, a circuit board, and a pressure-sensitive component. The outer shell and the inner shell are connected and enclose a ring-shaped cavity. The circuit board is disposed in the ring-shaped cavity, and a heart sound collection module is integrated on the side of the circuit board facing away from the inner shell. The pressure-sensitive component is disposed on the circuit board and abuts against the inner wall of the outer shell facing the inner shell. The pressure-sensitive component is configured as a trigger switch for the heart sound collection module. The main objective of this invention is to provide a smart ring that aims to acquire the user's physiological characteristic information while avoiding arm soreness.

Description

Technical Field

[0001] This invention relates to the field of smart wearable technology, and in particular to a smart ring and a heart sound detection and control method. Background Technology

[0002] Human heart sound data can be used to assess health status. Currently, doctors typically collect heart sound data using stethoscopes or electronic auscultation devices. Doctors rely on experience to judge the body's health. The accuracy of data interpretation depends on the doctor's experience, and since each person's physical condition is different, there is no standardized data display. Therefore, manual auscultation has a high error rate and often cannot provide accurate judgments.

[0003] In wrist-worn smart devices that integrate a heart sound acquisition module, the pickup hole of the heart sound acquisition module is positioned facing away from the arm for sound pickup. This requires the user to press the watch face of the wrist-worn smart device tightly against the chest wall. However, most users are accustomed to wearing the watch face outwards. This means that each time heart sound information is detected, the user needs to rotate their arm in the opposite direction so that the watch face faces inwards, i.e., towards the chest wall. In order to ensure the accuracy and reliability of the test results, each test needs to be conducted for a certain period of time. As a result, the user's wrist and the area near the joint will experience some soreness and swelling. Summary of the Invention

[0004] The main objective of this invention is to provide a smart ring that can acquire the user's physiological characteristics while preventing arm soreness.

[0005] To achieve the above objectives, the smart ring includes an outer shell and an inner shell, the outer shell and the inner shell being connected and enclosing a ring-shaped receiving cavity; the smart ring includes:

[0006] A circuit board, wherein the circuit board is disposed in the annular receiving cavity, and a heart sound collection module is integrated on the side of the circuit board facing away from the inner shell; and

[0007] A pressure-sensitive component, which is disposed on a circuit board and abuts against the inner wall of the outer shell facing the inner shell;

[0008] The pressure-sensitive component is configured as a trigger switch for the heart sound collection module.

[0009] In one embodiment of the present invention, the outer shell has a flat section on the inner wall facing the inner shell, and one end of the pressure-sensitive component abuts against the side of the flat section facing the inner shell.

[0010] In one embodiment of the present invention, a limiting step is provided on the side of the flat section facing the inner shell. The limiting step has a first fixing surface and a second fixing surface that are connected to each other. The end of the pressure-sensitive component has a first mating surface and a second mating surface that are connected to each other. The first fixing surface limits and mates with the first mating surface, and the second fixing surface limits and mates with the second mating surface.

[0011] In one embodiment of the present invention, the outer shell facing the inner wall of the inner shell is further provided with two fixing arms, the two fixing arms being arranged correspondingly along the thickness of the outer shell, and each fixing arm being fixedly connected to one end of the circuit board.

[0012] In one embodiment of the present invention, the pressure-sensitive component includes a buffer and a pressure-sensitive sensor. The buffer and the pressure-sensitive sensor are arranged along the radial direction of the smart ring. The buffer and the pressure-sensitive sensor are both located between the circuit board and the outer shell. The pressure-sensitive sensor is disposed on the circuit board. The buffer connects the pressure-sensitive sensor and the inner wall of the outer shell facing the inner shell.

[0013] In one embodiment of the present invention, the pressure-sensitive component includes a buffer and a pressure-sensitive sensor, the buffer and the pressure-sensitive sensor being arranged along the radial direction of the smart ring, the buffer being located between the circuit board and the housing, and the pressure-sensitive sensor being located on the side of the circuit board facing away from the housing;

[0014] The buffer component connects the circuit board and the outer shell to the inner wall of the inner shell.

[0015] In one embodiment of the present invention, the pressure-sensitive component includes a buffer and a pressure-sensitive sensor, the buffer and the pressure-sensitive sensor being arranged along the radial direction of the smart ring, and the buffer being disposed near the center region of the circuit board.

[0016] In one embodiment of the present invention, the outer shell of the smart ring is provided with a compression indicator, which is provided corresponding to the cushioning member.

[0017] This invention also proposes a heart sound detection and control method for the aforementioned smart ring, the heart sound detection and control method comprising:

[0018] The system receives test commands from the smart terminal and drives the pressure-sensitive component into a pressure detection state according to the test commands.

[0019] The pressure detection value of the pressure-sensitive component is obtained, and when the pressure detection value is within a preset pressure range, the heart sound collection module is controlled to enter the heart sound collection state.

[0020] Based on the detection duration of the pressure-sensitive component, the first information is sent to the smart terminal.

[0021] In one embodiment of the present invention, after the step of obtaining the pressure detection value of the pressure-sensitive component, the method further includes:

[0022] When the pressure detection value is not within the preset pressure range, an end command is generated;

[0023] The heart sound collection module is controlled to exit the heart sound collection state according to the termination command, and a termination command is sent to the smart terminal. The termination command is used by the smart terminal to generate pressure adjustment information.

[0024] In this technical solution, the smart ring integrates a heart sound collection module, transforming the acquisition of heart sound signals from "doctor's manual auscultation" to "electronic acquisition by the device." The heart sound collection module directly acquires raw heart sound data and processes it through a circuit board, outputting standardized digital signals. When the smart ring is worn and heart sound data needs to be collected, the user simply raises their arm and places the outer surface of the ring on their finger, corresponding to the side of the heart sound collection module, directly against the chest wall. Since the finger is in a natural wearing state, its outer surface is already facing outwards, unlike wrist-worn devices where "reverse rotation of the arm / wrist joint" is required when placing it against the chest wall. The arm simply needs to be raised naturally, and the fingers need to maintain a natural posture. During this process, the joints and fingers do not need to rotate, and the heart sound collection module can fit snugly against the chest wall. The pressure-sensitive component abuts against the inner wall of the outer shell, acting as a trigger switch for the heart sound collection module. When the outer surface of the ring is pressed against the chest wall, the chest wall pressure is transmitted through the outer shell to the pressure-sensitive component, triggering the detection to start, ensuring a good fit during detection, and requiring no additional operation, further simplifying the "raise arm and detect" process. In summary, the smart ring integrates a heart sound collection module, fundamentally eliminating the need for joint rotation during detection and enabling detection without joint rotation when the arm is raised. This completely solves the problem of soreness caused by continuous joint rotation in wrist-worn devices. At the same time, electronic data collection achieves data standardization, avoiding the error problem of relying on human experience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 An internal structural diagram along the axial direction of an embodiment of the smart ring provided by the present invention;

[0027] Figure 2An internal structural diagram of an embodiment of the smart ring provided by the present invention, shown radially.

[0028] Figure 3 This is a structural layout diagram of an embodiment of the pressure-sensitive component provided by the present invention;

[0029] Figure 4 This is a structural layout diagram of another embodiment of the pressure-sensitive component provided by the present invention;

[0030] Figure 5 This is a flowchart illustrating the first embodiment of the method provided by the present invention;

[0031] Figure 6 This is a flowchart illustrating a second embodiment of the method provided by the present invention.

[0032] Explanation of icon numbers:

[0033] 100. Smart ring;

[0034] 10. Outer shell; 11. Inner shell; 10a. Flat section; 12. Limiting step; 121. First fixing surface; 122. Second fixing surface; 13. Fixing arm;

[0035] 20. Circuit board; 30. Pressure-sensitive component; 31. Buffer; 32. Pressure-sensitive sensor.

[0036] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0039] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0040] The main objective of this invention is to provide a smart ring 100 that aims to acquire the user's physiological characteristics while preventing arm soreness.

[0041] To achieve the above objectives, please refer to Figure 1 The smart ring 100 includes an outer shell 10, an inner shell 11, a circuit board 20, and a pressure-sensitive component 30. The outer shell 10 and the inner shell 11 are connected and enclosed to form an annular cavity. The circuit board 20 is disposed in the annular cavity, and a heart sound collection module is integrated on the side of the circuit board 20 facing away from the inner shell 11. The pressure-sensitive component 30 is disposed on the circuit board 20 and abuts against the inner wall of the outer shell 10 facing the inner shell 11. The pressure-sensitive component 30 is configured as a trigger switch for the heart sound collection module.

[0042] In this technical solution, the smart ring 100 integrates a heart sound collection module, transforming the acquisition of heart sound signals from "doctor's manual auscultation" to "electronic acquisition by the device." The heart sound collection module directly acquires raw heart sound data and processes it through the circuit board 20, outputting standardized digital signals. When the smart ring 100 is in the wearing state and heart sound data needs to be collected, the user only needs to raise their arm and place the outer surface of the ring on their finger, corresponding to the side where the heart sound collection module is located, directly against the chest wall. Since the finger is in a natural state, its outer surface is already facing outwards, and when placing it against the chest wall, there is no need to "rotate the arm / wrist joint in the opposite direction" as with wrist-worn devices. The arm only needs to be raised naturally, and the fingers need to maintain a natural posture. During this process, the joints and fingers do not need to rotate, and the heart sound collection module can fit tightly against the chest wall. The pressure-sensitive component 30 abuts against the inner wall of the outer shell 10, acting as a trigger switch for the heart sound collection module. When the outer surface of the ring is pressed against the chest wall, the chest wall pressure is transmitted through the outer shell 10 to the pressure-sensitive component 30, triggering the detection to start, ensuring the fit during detection, and requiring no additional operation, further simplifying the "raise arm and detect" process. In summary, the Smart Ring 100 integrates a heart sound collection module, fundamentally eliminating the need for joint rotation during detection and enabling detection without joint rotation when the arm is raised. This completely solves the problem of soreness caused by continuous joint rotation in wrist-worn devices. At the same time, electronic data collection achieves data standardization, avoiding the error problem of relying on human experience.

[0043] Specifically, the outer shell 10 is typically made of a material with a certain degree of hardness and a smooth surface, such as metal or high-strength plastic, to provide structural support and an aesthetically pleasing appearance for the ring; the inner shell 11 is typically made of a softer, skin-friendly material, such as silicone or a special resin, to ensure wearing comfort and a close fit to the finger's skin. The outer shell 10 and the inner shell 11 are securely connected together by a precise connection method (such as snaps, threads, or one-piece molding), and together they enclose a ring-shaped, hollow receiving cavity. This ring-shaped receiving cavity not only provides physical space for core components such as the circuit board 20, but its ring-shaped structure also allows the ring to be stably worn on the user's finger.

[0044] Inside the annular cavity is a circuit board 20, which is the brain of the smart ring 100. It carries a variety of electronic components, such as charging posts, filters, amplifiers, etc. In particular, on the side of the circuit board 20 facing the outer shell 10, a heart sound collection module is integrated. The heart sound collection module typically contains one or more highly sensitive microphones or vibration sensors, which are precisely packaged and fixed on the circuit board 20 using SMT technology. Its placement on the side facing the outer shell 10 is to more effectively pick up the weak vibration and sound signals generated by the heartbeat transmitted through the outer shell 10.

[0045] A pressure-sensitive component 30 is also provided on the circuit board 20. This component is physically mounted on the circuit board 20 and directly abuts against the inner wall of the outer shell 10 facing the inner shell 11. This means that when the user's finger is pressed against the chest wall, the outer shell 10 will undergo a slight deformation or movement. This movement will be directly transmitted to the pressure-sensitive component 30, which can sense and measure the pressure changes applied to it and convert these changes into electrical signals. The control system or control chip on the circuit board 20 will monitor this electrical signal. When the pressure on the pressure-sensitive component 30 reaches or exceeds a certain preset threshold, the control system will receive a "trigger" signal and then instruct the heart sound collection module to start working and begin collecting heart sound data. Conversely, when the pressure decreases to below another threshold, heart sound collection may stop. This design cleverly links the user's physical interaction (squeezing the ring) with the heart sound data collection process, making it convenient for the user to actively initiate detection and potentially automatically recording heart sounds when the user unconsciously squeezes the ring, thus improving ease of use and the richness of the data. The entire system is compactly integrated into a ring, an everyday item, making heart sound monitoring both imperceptible and continuous.

[0046] When the smart ring 100 is worn, the pressure-sensitive end of the pressure-sensitive component 30 naturally faces away from the user's palm. The user only needs to raise their hand to align the pressure-sensitive end of the pressure-sensitive component 30 with the human chest wall. At this time, the wrist joint does not need to rotate to achieve the alignment of the pressure-sensitive end of the pressure-sensitive component 30 with the human chest wall. In this way, when the user uses the smart ring 100 to collect heart sound signals, there is no need to perform a wrist rotation action as with wristband devices. This avoids tension and fatigue in the forearm muscles such as the extensor muscles and finger extensor muscles. Furthermore, when it is necessary to adjust the pressure-sensitive component... The pressure value of the device 30 can be adjusted by simply rotating the finger in a counterclockwise or clockwise direction. During the rotation, only the finger joints need to exert force. As is well known, the muscle activity of the fingers is limited to the flexor and extensor muscles of the fingers, as well as some small muscle groups that require fine control. These muscles are relatively small, and the fatigue generated when exerting force is far less than that required to use the entire forearm muscle group to rotate the wrist or adjust the arm posture. This avoids unnecessary muscle tension and fatigue, making it more comfortable to wear and use for a long time. Users can focus on collecting heart sound signals without worrying about the physical burden caused by operation.

[0047] In another embodiment, the heart sound collection module of the wristband device is located on the side of the watch face facing the arm. When collecting heart sound signals, the user does not need to rotate the elbow joint. However, the heart sound signal transmission path is "heart - internal skeleton - chest wall - wristband - arm - heart sound collection module in the watch". Since the heart sound signal is weak, it inevitably weakens as it passes through multiple transmission media, leading to a decrease in the reliability of the detection results. To reduce signal attenuation, the user can remove the wristband device and place it directly against the chest wall. However, each test requires removing and reinstalling the wristband. As the frequency of use of the heart sound collection module increases, mechanical wear on the wristband's disassembly structure, such as the butterfly buckle, accumulates rapidly, leading to problems such as wristband damage. The smart ring 100 proposed in this invention can perfectly avoid problems such as arm fatigue, rapid weakening of heart sound signals, and inconvenience of detection, greatly improving the user's experience and the accuracy of the detection results.

[0048] In one embodiment, please refer to Figure 1 To ensure a stable and reliable mounting base for the pressure-sensitive component 30, a flat section 10a is provided on the inner wall of the outer shell 10 facing the inner shell 11. The flat section 10a refers to the protruding part on the inner wall of the outer shell 10, with its top surface closer to the inner shell 11. The flat section 10a can be integrally formed with the outer shell 10 through injection molding or other processes. The force-bearing end of the pressure-sensitive component 30 abuts against the top surface of the flat section 10a. This design provides a stable and uniform contact surface for the pressure-sensitive component 30. When the outer shell 10 of the smart ring 100 is subjected to pressure from the chest wall, the pressure can be evenly transmitted to the pressure-sensitive component 30 through the flat section 10a, avoiding uneven force distribution caused by minor unevenness or curvature variations on the inner wall of the outer shell 10. The flat section 10a ensures that the pressure-sensitive component 30 can accurately and reliably sense pressure changes, ensuring the stability and consistency of the subsequent heart sound collection module being triggered. It effectively avoids signal drift caused by the arc-shaped inner wall of the outer shell 10, and improves the reliability of the smart ring 100's detection function.

[0049] Furthermore, to further enhance the positioning accuracy and stability of the pressure-sensitive component 30 on the flat section 10a, and to prevent unnecessary movement or tilting during ring use that could affect the accuracy of pressure sensing, please refer to [link to relevant documentation]. Figure 1A limiting step 12 is provided on the top surface of the flat section 10a facing the inner shell 11. The limiting step 12 has a first fixing surface 121 and a second fixing surface 122. The dihedral angle formed by the first fixing surface 121 and the second fixing surface 122 is close to a right angle, together forming an "L" shaped or similar step structure. Meanwhile, the end of the pressure-sensitive component 30, that is, the part that abuts against the flat section 10a, is also designed with a specific shape to match the limiting step 12. This end has a first mating surface and a second mating surface that are connected to each other. The first mating surface is designed to precisely align or fit with the first fixing surface 121 of the limiting step 12, and the second mating surface is designed to precisely align or fit with the second fixing surface 122 of the limiting step 12. The first fixing surface 121 and the second fixing surface 122 of the limiting step 12 provide a larger fixing area for the pressure-sensitive component 30. The two are fixedly connected by adhesive or other means and are ensured to fit tightly so as to prevent the pressure-receiving end of the pressure-sensitive component 30 from detaching from the outer shell 10 and failing to effectively sense the pressure from the chest wall.

[0050] To ensure the circuit board 20 is securely installed within the annular cavity and to prevent displacement, loosening, or even damage during ring wearing, finger movement, or external impact, please refer to [link to relevant documentation]. Figure 1In one embodiment, the inner wall of the outer shell 10 facing the inner shell 11 is further provided with two fixing arms 13. The two fixing arms 13 are correspondingly arranged along the thickness direction of the outer shell 10, and each fixing arm 13 is fixedly connected to one end of the circuit board 20 by adhesive bonding. The two fixing arms 13 provide strong support for the circuit board 20, keeping it stable in the dynamic environment of the ring and effectively preventing the circuit board 20 from shifting due to vibration, bending or squeezing. Secondly, by fixing the two ends of the circuit board 20, the position and orientation of the circuit board 20 in the annular cavity can be better controlled, ensuring that all components on it (including the connection points of the heart sound collection module and the pressure-sensitive component 30) are in the expected spatial positions. This is crucial for ensuring the stability of signal transmission and the accurate operation of the sensor. At the same time, when the smart ring 100 is subjected to pressure from the chest wall, the two ends of the circuit board 20 are fixed, and the point of action of the pressure-sensitive component 30 on the circuit board 20 is located in the middle of the circuit board 20. Thus, the middle of the circuit board 20 can undergo a micro-bending deformation greater than that at the two ends. When the pin of the pressure-sensitive component 30 abuts against the middle of the circuit board 20, The pressure-sensitive component 30 can quickly sense the micro-deformation to form an electrical signal, thereby improving the response speed of the pressure-sensitive component 30. Furthermore, an adhesive layer is provided between one end of each fixing arm 13 and the circuit board 20. The thickness of the adhesive layer refers to the dimension of the adhesive layer in the radial direction of the smart ring 100. While ensuring connection stability, it does not occupy too much space. The thickness t of the adhesive layer is 0-0.05mm. At the same time, in order to ensure that the adhesive layer has sufficient area to guarantee connection stability, the dimension of the adhesive layer along the tangent direction perpendicular to the radial direction of the smart ring 100 is W2. W2 is greater than 0.40mm and does not exceed the width of the fixing arm 13.

[0051] In one embodiment of the present invention, please refer to Figure 1 and Figure 3The pressure-sensitive component 30 includes a buffer 31 and a pressure sensor 32, which are arranged radially along the smart ring 100. Both the buffer 31 and the pressure sensor 32 are located between the circuit board 20 and the outer shell 10. The pressure sensor 32 is mounted on the circuit board 20. The buffer 31 connects the pressure sensor 32 and the inner wall of the outer shell 10 facing the inner shell 11. The buffer 31 is made of an elastic material such as silicone, rubber, or foam. When the outer shell 10 of the smart ring 100 is compressed by the chest wall, the slight deformation of the outer shell 10 directly acts on the buffer 31, generating pressure on the pressure sensor 32. The pressure sensor 32 senses the pressure from the buffer 31 through a PIN and converts it into an electrical signal, thus capturing the pressure of the chest wall on the smart ring 100 in the first instance, and determining the pressure exerted by the chest wall on the smart ring. The pressure of 100 indicates whether it can trigger the heart sound collection module; at the same time, the direct contact between the buffer 31 and the pressure sensor 32 can concentrate the dispersed pressure to the pressure sensor 32, ensuring that the sensor can stably capture pressure changes; the pressure sensor 32 can be a thin-film pressure sensor or a piezoelectric sensor, which can convert the pressure signal transmitted by the buffer 31 into an electrical signal, thereby triggering the start or stop of the heart sound collection module; based on the above embodiments, the smart ring 100 proposed in this invention has two deformation transmission paths, the first being: the outer shell 10 of the smart ring 100—the buffer 31—the circuit board 20—the pressure sensor 32, and the second being: the outer shell 10 of the smart ring 100—the fixed column arm—the circuit board 20—the pressure sensor 32. The pressure sensor 32 can sense the pressure from the chest wall to the greatest extent through the two deformation transmission paths, reducing the pressure value detection error.

[0052] In another embodiment of the invention, please refer to Figure 1 and Figure 4The pressure-sensitive component 30 includes a buffer 31 and a pressure-sensitive sensor 32, which are arranged radially along the smart ring 100. The buffer 31 is located between the circuit board 20 and the outer shell 10, and the pressure-sensitive sensor 32 is located on the side of the circuit board 20 facing away from the outer shell 10. The buffer 31 connects the circuit board 20 and the inner wall of the outer shell 10 facing the inner shell 11. In this embodiment, the buffer 31 is made of an elastic material such as silicone, rubber, or foam, and its two ends connect the outer shell 10 of the smart ring 100 and the side of the circuit board 20 facing the outer shell 10. The pressure-sensitive sensor 32 is located on the side of the circuit board 20 facing away from the outer shell 10. Thus, the slight deformation of the buffer 31 caused by the compression of the outer shell 10 of the smart ring 100 is first transmitted to the pressure sensor 32 through the slight deformation of the circuit board 20. This avoids excessive pressure deformation that could cause the pressure sensor 32 to fail. At the same time, the buffer 31 and the pressure sensor 32 are arranged along the radial direction of the smart ring 100, meaning that the deformation of the buffer 31 directly aligns with the pressure sensor 32. This ensures that the force from the chest wall can be transmitted to the pressure sensor 32 along the radial direction of the smart ring 100, preventing the pressure detection value of the pressure sensor 32 from being much smaller than the actual pressure value of the chest wall on the smart ring 100.

[0053] To ensure that the force detected by the pressure sensor 32 is close to the actual pressure value, please refer to [link / reference]. Figure 1 and Figure 2 In one embodiment of the present invention, the pressure-sensitive component 30 includes a buffer 31 and a pressure-sensitive sensor 32. The buffer 31 and the pressure-sensitive sensor 32 are arranged along the radial direction of the smart ring 100. The buffer 31 is located near the center of the circuit board 20. In the aforementioned embodiment, the two ends of the circuit board 20 are supported and fixed by the fixing arms 13 of the housing 10, and the middle part of the circuit board 20 is suspended. At this time, the deformation that can occur in the middle of the circuit board 20 gradually decreases towards the two ends. The pressure signal generated in the middle of the circuit board 20 is the largest. Therefore, by arranging the buffer 31 near the center of the circuit board 20 and aligning the buffer 31 with the pressure-sensitive sensor 32, it can be ensured that the pressure-sensitive sensor 32 can detect the maximum pressure value. The corresponding digital signal generated is closest to the actual pressure value from the chest wall. In this way, when the user can adjust the chest wall pressure, damage to the pressure-sensitive sensor 32 can be avoided. Please refer to the attached drawing. Figure 1 and Figure 2"The buffer member 31 is disposed near the central region of the circuit board 20" means that the center line of the buffer member 31 is at a distance of L and W2 from the center line of the circuit board 20 along the length direction and width direction of the circuit board 20 respectively, where -1.00 mm < L < 1.00 mm and -2.00 mm < W2 < 2.00 mm. Here, the plus and minus signs represent the left or right and plus or minus directions based on the center line. For example, when L is -1, it means that the buffer member 31 is located on the left side of the length center line along the length direction of the circuit board 20, and the distance between the center line of the buffer member 31 and the length center line of the circuit board 20 is 1 mm; when W is -2, it means that the buffer member 31 is located on the left side of the width center line along the width direction of the circuit board 20, and the distance between the center line of the buffer member 31 and the width center line of the circuit board 20 is 2 mm. Preferably, the center line of the buffer member 31 coincides with the length center line and width center line of the circuit board 20 respectively. In this way, the buffer member 31 is centered on the circuit board 20, so that the piezoresistive sensor 32 can sense the maximum amount of deformation.

[0054] Furthermore, in order to ensure that the user can directly face the buffer member 31 towards the chest wall during detection, the outer shell 10 of the smart ring 100 is provided with an extrusion indication portion, and the extrusion indication portion is provided corresponding to the buffer member 31; wherein, the extrusion indication portion is located in the diameter direction of the smart ring 1,000. In one embodiment, the extrusion indication portion is a groove structure on the outer shell 10 of the smart ring 100. The groove is symmetrically opened along the radial direction and extends along the thickness direction of the smart ring 100 to form a slender "positioning groove". The bottom of the groove can be subjected to an anodic oxidation surface treatment to present a matte dark color that is significantly different from the main body of the outer shell 10, forming a high contrast visually, so that it can be quickly recognized by the user even in a low-light environment. The two ends of the groove are transitioned with arcs to avoid scratching the skin or clothing; when the smart ring 100 is in a worn state, the extrusion indication portion is located at the midline position on the back of the finger. In this way, when the user picks up the smart ring 100 for wearing, the user can directly judge whether the extrusion indication portion is located at the midline position on the back of the finger with the naked eye to ensure the accuracy of the wearing position.

[0055] The present invention also proposes a heart sound detection control method for the above-mentioned smart ring 100. Please refer to Figure 5 , the heart sound detection control method includes:

[0056] S10: Receive a test instruction from the smart terminal, and drive the piezoresistive component 30 into a pressure detection state according to the test instruction;

[0057] S20: Obtain the pressure detection value of the piezoresistive component 30. When the pressure detection value is within a preset pressure range, control the heart sound collection module to enter a heart sound collection state;

[0058] S30: Based on the detection time of the pressure-sensitive component 30, send the first information to the smart terminal.

[0059] In step S10, the smart ring 100 establishes a communication connection with smart terminals such as mobile phones and tablets via wireless communication methods such as Bluetooth. The user actively initiates a heart sound detection request, i.e., a "test command," through the corresponding application software on the smart terminal. After receiving the test command, the controller of the smart ring 100 sends a start signal to the pressure-sensitive component 30, causing the pressure-sensitive sensor 32, buffer 31, and other components to switch from standby to working state and begin real-time monitoring of pressure changes. The purpose of this step is to establish the correlation between "user-initiated triggering" and "device response," ensuring that heart sound detection is only activated when the user needs it, avoiding false triggering or unnecessary power consumption.

[0060] In step S20, after the pressure-sensitive component 30 enters the pressure detection state, it continuously converts the pressure signal into an electrical signal in the form of voltage or current changes. The controller of the smart ring 100 acquires the electrical signal in real time and converts it into a specific pressure value. When the pressure detection value is within the preset range, it indicates that the outer shell 10 of the smart ring 100 is tightly attached to the chest wall. The electronic components such as the microphone and vibration sensor in the heart sound collection module are triggered and start collecting raw heart sound data such as S1 heart sound, S2 heart sound, and abnormal heart sound.

[0061] In step S30, once the heart sound collection module is activated and starts working in step S20, the smart ring 100 will start timing and record how long the heart sound collection lasts. This "detection duration" can be understood as the time calculated from the start of the heart sound collection module. After the timing ends, the smart ring 100 will decide what "first information" to send to the smart terminal based on this "detection duration".

[0062] Scenario 1: If the timer shows that the duration of heart sound collection has not exceeded the preset threshold, the "first message" will inform the user: "This test has ended because the time was too short. The data may be inaccurate or incomplete. Please repeat the test for a longer time."

[0063] Scenario 2: If the timer shows that the duration of heart sound collection exceeds the preset threshold, then the "first information" will change to the user's "physiological signs information." This information is the result of processing and analyzing data collected by the heart sound collection module over a sufficiently long period, such as heart rate and phonocardiogram characteristics.

[0064] By following these three steps, we ensure that the heart sound detection is performed under appropriate pressure conditions, and that the data is considered valid only when the acquisition time is long enough, thereby improving the accuracy and reliability of the detection.

[0065] In one embodiment of the present invention, please refer to Figure 6 After obtaining the pressure detection value of the pressure-sensitive component 30, the following steps are also included:

[0066] S21: When the pressure detection value is not within the preset pressure range, an end command is generated;

[0067] S22: Control the heart sound collection module to exit the heart sound collection state according to the end command, and send the end command to the smart terminal. The end command is used by the smart terminal to generate pressure adjustment information.

[0068] In step S21, the smart ring 100 acquires the pressure detection value of the pressure-sensitive component 30 and determines whether the pressure detection value is within the preset pressure range through the controller. When the pressure on the outer shell 10 of the smart ring 100 is too high or too low, the controller's judgment result is "no," meaning the pressure value is either too high or too low, exceeding this range, and step S21 will be triggered. In this step, once an unsuitable pressure is detected, the controller inside the smart ring 100 will immediately generate a termination command. The purpose of this command is to tell the smart ring 100 itself and notify the smart terminal that the current heart sound collection conditions do not meet the requirements and the current collection process needs to be stopped.

[0069] In step S22, the controller of the smart ring 100 can generate two synchronous or time-sharing actions based on the end command. Specifically, firstly, it "controls the heart sound collection module to exit the heart sound collection state," which means that the heart sound collection function activated in S20 will stop working and no longer collect heart sound signals to avoid collecting invalid or misleading data under incorrect conditions. At the same time or subsequently, the ring will send the "end command" to the smart terminal via a communication module such as Bluetooth. After receiving this "end command" with pressure problem information, the smart terminal will generate corresponding "pressure adjustment information" based on the command content. If the pressure is too high, the terminal will generate a prompt message, such as "Please reduce the pressure." If the pressure is too low, the terminal will generate a prompt message, such as "Please increase the pressure to ensure good contact between the ring and the chest wall." This information will be displayed on the screen of the smart terminal to directly guide the user's operation.

[0070] The above two steps constitute the feedback and correction mechanism of the smart ring 100, which is the direct consequence and countermeasure of the condition judgment in step S20.

[0071] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A smart ring comprising an outer shell (10) and an inner shell (11), the outer shell (10) being connected with the inner shell (11) and enclosing a ring-shaped accommodating cavity, characterized in that, The intelligent ring comprises: a circuit board (20) arranged in the annular accommodating cavity, a heart sound collecting module being integrated on a side of the circuit board (20) facing away from the inner shell (11), and a middle part of the circuit board (20) being capable of being deformed in a micro-curved manner greater than both ends; and a pressure-sensitive assembly (30) arranged on the circuit board (20) and abutting against an inner wall of the outer shell (10) facing the inner shell (11). The pressure-sensitive assembly (30) comprises a buffer (31) and a pressure-sensitive sensor (32), the buffer (31) and the pressure-sensitive sensor (32) being arranged along a radial direction of the intelligent ring, the buffer (31) being located between the circuit board (20) and the outer shell (10), and the pressure-sensitive sensor (32) being located on a side of the circuit board (20) facing away from the outer shell (10), the buffer (31) connecting the circuit board (20) and the inner wall of the outer shell (10) facing the inner shell (11). The pressure-sensitive assembly (30) is configured as a trigger switch of the heart sound collecting module. The inner wall of the outer shell (10) facing the inner shell (11) is provided with a flat section (10a), one end of the pressure-sensitive assembly (30) abutting against a side of the flat section (10a) facing the inner shell (11). The side of the flat section (10a) facing the inner shell (11) is provided with a limiting step (12), the limiting step (12) having a first fixing surface (121) and a second fixing surface (122) abutting against each other, an end of the pressure-sensitive assembly (30) having a first matching surface and a second matching surface abutting against each other, the first fixing surface (121) limiting and matching the first matching surface, and the second fixing surface (122) limiting and matching the second matching surface. The inner wall of the outer shell (10) facing the inner shell (11) is further provided with two fixing arms (13), the two fixing arms (13) being correspondingly arranged along a thickness of the outer shell (10), and each of the fixing arms (13) being fixedly connected to one end of the circuit board (20).

2. The smart ring of claim 1, wherein, The buffer (31) and the pressure-sensitive sensor (32) are arranged along a radial direction of the intelligent ring, and the buffer (31) is arranged close to a central region of the circuit board (20).

3. The smart ring of claim 2, wherein, The outer shell (10) of the intelligent ring is provided with a squeezing indication part corresponding to the buffer (31). 4.A heart sound detection control method for the smart ring of any one of claims 1 to 3, characterized in that, The heart sound detection control method comprises: receiving a test instruction from a smart terminal, and driving the pressure-sensitive assembly (30) to enter a pressure detection state according to the test instruction; obtaining a pressure detection value of the pressure-sensitive assembly (30), and controlling the heart sound collecting module to enter a heart sound collecting state when the pressure detection value is within a preset pressure range; sending first information to the smart terminal according to a detection duration of the pressure-sensitive assembly (30).

5. The method of claim 4, wherein, After the step of obtaining the pressure detection value of the pressure-sensitive assembly (30), the method further comprises: generating an end instruction when the pressure detection value is not within the preset pressure range. According to the end instruction, the heart sound collecting module exits the heart sound collecting state, and an end instruction is sent to the intelligent terminal, and the end instruction is used to generate pressure adjustment information by the intelligent terminal.

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