Watchband assembly

Abstract

The invention provides a watchband assembly. The watchband assembly comprises a first watchband and a second watchband; the first watchband comprises a first airbag and a first magnet, a first magnetic pole of the first magnet is arranged close to the mounting part of the first watchband, and the mounting part of the first watchband is used for detachably connecting the first watchband with the watch main body; the second watchband comprises a second airbag and a second magnet, a second magnetic pole of the second magnet is arranged close to the mounting part of the second watchband, and the mounting part of the second watchband is used for detachably connecting the second watchband with the watch main body; the length of the first airbag is different from that of the second airbag; the first magnetic pole and the second magnetic pole are different, so that the Hall sensor on the watch body identifies that the first watchband is installed on the watch body or identifies that the second watchband is installed on the watch body by detecting the first magnetism or the second magnetic pole.

Description

[0001] This application is a divisional application. The application number of the original application is 202210141000.8, and the original application date is February 16, 2022. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to a watch strap assembly. Background Art

[0003] Electronic devices used to measure blood pressure (such as blood pressure watches or blood pressure wristbands) have smaller size and lighter weight, so they can be worn by users for a long time, meeting the need for long-term and real-time blood pressure detection. The basic principle of blood pressure watch for measuring blood pressure is: when the blood pressure watch is worn on the user's wrist, the air bag on the strap of the blood pressure watch is in close contact with the user's radial artery, and it can be considered that the pressure value in the air bag is approximately equal to the pressure value of the radial artery. The blood pressure watch can determine the user's blood pressure value by detecting the pressure value in the air bag. The blood pressure value can include systolic blood pressure (SBP) and diastolic blood pressure (DBP).

[0004] Generally, a blood pressure watch comprises a watch body and an air bag watch strap. However, a user may assemble a wrong air bag watch strap to the watch body, which affects the measurement accuracy of the blood pressure watch. Summary of the invention

[0005] An embodiment of the present application provides a watch strap assembly, aiming to improve the accuracy of blood pressure measurement.

[0006] In the first aspect, a watch strap assembly is provided. The watch strap assembly includes a first watch strap and a second watch strap; the first watch strap includes a first air bag and a first magnet, the first magnetic pole of the first magnet is arranged near the mounting portion of the first watch strap, and the mounting portion of the first watch strap is used for the first watch strap to be detachably connected to the watch body; the second watch strap includes a second air bag and a second magnet, the second magnetic pole of the second magnet is arranged near the mounting portion of the second watch strap, and the mounting portion of the second watch strap is used for the second watch strap to be detachably connected to the watch body; the length of the first air bag is different from the length of the second air bag; the first magnetic pole and the second magnetic pole are different, so that the Hall sensor on the watch body can identify the first watch strap installed on the watch body or the second watch strap installed on the watch body by detecting the first magnetism or the second magnetic pole. It can be understood that the first watch strap and the second watch strap are selectively installed on the watch body, that is, one watch body and one watch strap match. The user can choose to install the first watch strap or the second watch strap on the watch body as needed.

[0007] The present application sets a Hall sensor on the watch body and a magnet on the airbag. The magnets set on the airbags of different types of straps have different magnetic poles facing the Hall sensor. Therefore, the Hall sensor can identify the type of strap installed on the watch body by detecting the type of magnetic poles. The user can know whether he or she is wearing the wrong strap based on the identification result, thereby avoiding the problem of decreased blood pressure accuracy caused by the user using the wrong strap.

[0008] In a possible implementation, the first watchband is suitable for users with a wrist circumference of 130mm to 160mm (inclusive), and the second watchband is suitable for users with a wrist circumference of 161mm to 230mm (inclusive). Users with different wrist circumferences can choose watchbands with different airbag lengths as needed, while ensuring that the airbags of the watchband can fully cover the radial artery and the ulnar artery, and that the length of the watchband is not too long, thereby ensuring user experience.

[0009] In a possible implementation, the first magnetic pole is an S pole, and the second magnetic pole is an N pole.

[0010] In a possible implementation, the first magnetic pole is an N pole, and the second magnetic pole is an S pole.

[0011] In a possible implementation, the first magnet is disposed on the first airbag close to the watch body.

[0012] In a possible implementation, the second magnet is disposed on the second airbag near the watch body.

[0013] In a possible implementation, the second magnet is disposed on a cover plate of the second watch strap, and the cover plate is used to be connected to the watch body.

[0014] In a possible implementation, the second watch strap includes a first strap body and a second strap body, the first strap body and the second strap body are respectively connected to two sides of the watch body, and the second airbag is arranged inside the first strap body.

[0015] In a possible implementation, the second watch strap includes a first strap body and a second strap body, the first strap body and the second strap body are respectively connected to two sides of the watch body, and the second airbag is disposed inside the first strap body and the watch body.

[0016] In a possible implementation, the second watch strap includes a first strap body and a second strap body, the first strap body and the second strap body are respectively connected to two sides of the watch body, and the second airbag is arranged on the inner sides of the first strap body, the watch body and the second strap body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0018] Figure 1 is a structural schematic diagram of a first embodiment of an electronic device provided by an embodiment of the present application;

[0019] Figure 2 yes Figure 1 A schematic structural diagram of the electronic device shown at another angle;

[0020] Figure 3 yes Figure 2 A schematic structural diagram of a table body of the electronic device shown;

[0021] Figure 4 yes Figure 2 A schematic diagram of a cross-sectional structure of an electronic device shown;

[0022] Figure 5 yes Figure 2 a schematic diagram of the exploded structure of the electronic device shown;

[0023] Figure 6 yes Figure 5 A schematic structural diagram of the first belt body of the electronic device shown at another angle;

[0024] Figure 7 yes Figure 2 Schematic diagrams of various types of first belt bodies of the structure shown;

[0025] Figure 8 yes Figure 5 A schematic diagram of the structure of a Hall sensor of the structure shown;

[0026] Fig. 9 yes Figure 2 Schematic diagram of various types of first belt bodies in another embodiment of the structure shown;

[0027] Fig.10 yes Figure 2 A partial structural schematic diagram of another embodiment of the electronic device shown;

[0028] Fig.11 yes Figure 2 A schematic structural diagram of another embodiment of the electronic device shown;

[0029] Fig.12 yes Figure 2 A schematic structural diagram of another embodiment of the electronic device shown;

[0030] Fig.13 is a schematic flow chart of a watchband identification method of an electronic device in a first embodiment;

[0031] Fig.14 yes Fig.13 The identification schematic diagram of the strap identification method shown;

[0032] Fig.15 yes Fig.13 A schematic diagram of a user interface of the strap identification method shown;

[0033] Fig.16 yes Fig.13 A schematic diagram of a user interface of the strap identification method shown;

[0034] Fig.17 yes Fig.13 A schematic diagram of a user interface of the strap identification method shown;

[0035] Fig.18 is a schematic flow chart of a watchband identification method of an electronic device in a second embodiment;

[0036] Fig.19 yes Fig.18 The identification schematic diagram of the strap identification method shown;

[0037] Fig. 20 It is a schematic diagram of the pressure curve of the ordinary strap and the long airbag strap;

[0038] Fig.21 yes Fig.18 A schematic diagram of a user interface of the strap identification method shown;

[0039] Fig. 22 is a flowchart of a watchband identification method of an electronic device in a third embodiment;

[0040] Fig.23 yes Fig. 22 The identification schematic diagram of the strap identification method shown;

[0041] Fig.24 yes Fig. 22 A schematic diagram of a user interface of the strap identification method shown;

[0042] Fig.25 yes Fig. 22 A schematic diagram of a user interface of the strap identification method shown;

[0043] Fig.26 yes Fig. 22 A schematic diagram of a user interface of the strap identification method shown;

[0044] Fig. 27 yes Fig. 22 A schematic diagram of a user interface of the strap identification method shown;

[0045] Fig.28 yes Fig. 22 A schematic diagram of a user interface of the strap identification method shown;

[0046] Fig.29 yes Fig. 22 A schematic diagram of a user interface of the strap identification method shown;

[0047] Fig.30 yes Fig. 22 A schematic diagram of a user interface of the strap identification method shown;

[0048] Fig.31 yes Fig. 22 A user interface schematic diagram of the strap identification method shown. DETAILED DESCRIPTION

[0049] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0050] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. The directional terms mentioned in the embodiments of the present application, such as "inside", "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. "Multiple" means at least two.

[0051] It is to be understood that the specific embodiments described herein are only used to explain the relevant application, rather than to limit the application. It should also be noted that, for ease of description, only the parts related to the application are shown in the drawings.

[0052] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] See also Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a first embodiment of an electronic device provided by an embodiment of the present application; Figure 2 yes Figure 1 The schematic diagram of the structure of the electronic device shown in FIG. Figure 1 This is a schematic diagram of the front view of an electronic device. Figure 2 A schematic diagram of the back structure of an electronic device.

[0054] The electronic device 100 includes but is not limited to wrist electronic products such as watches, smart watches, bracelets, and smart bracelets. Figure 1 The electronic device 100 of the illustrated embodiment is described by taking a smart watch as an example.

[0055] The electronic device 100 includes a watch body 10 and a watch strap 20. The watch strap 20 is mounted on the watch body 10, and the watch strap 20 is provided with an air bag 50, which is mounted on the inner side of the watch strap 20 and connected to the watch body 10. In this embodiment, the air bag 50 is detachably connected to the watch strap 20 and the watch body 10, so that when blood pressure measurement is not performed, the air bag 50 can be removed from the watch strap 20 and the watch body 10, and the user can wear it more comfortably in daily life. Of course, in other embodiments, the air bag can also be detachably connected to the watch body 10 and fixedly connected to the watch strap. Alternatively, the air bag can also be fixedly connected to the watch body and the watch strap.

[0056] There are two straps 20, which are a first strap 21 and a second strap 22. The first strap 21 and the second strap 22 are connected to opposite sides of the watch body 10. In this embodiment, the first strap 21 and the second strap 22 are detachably connected to opposite sides of the watch body 10. This makes it convenient to replace different types of straps for the watch body 10, meet various wearing requirements of users, and improve user experience. Of course, in other embodiments, the first strap 21 and the second strap 22 can also be fixedly connected to opposite sides of the watch body 10.

[0057] For example, the first strap 21 is provided with a mounting portion and a first locking portion (not shown), and the second strap 22 is provided with a mounting portion and a second locking portion (not shown). The mounting portion of the first strap 21 and the mounting portion of the second strap 22 are respectively mounted on opposite sides of the watch body 10. The first locking portion and the second locking portion are detachably locked to each other so that the electronic device 100 can be worn on the wrist of the user. It should be understood that the matching structure between the first locking portion and the second locking portion can be a watch buckle structure such as a hook buckle, a concealed buckle, a butterfly buckle, a belt snap buckle, a folding safety buckle, a folding buckle or a pin buckle, and this application does not limit this.

[0058] See also Figure 3 and Figure 4 , Figure 3 yes Figure 2 A schematic structural diagram of a table body of the electronic device shown; Figure 4 yes Figure 2 The cross-sectional structure diagram of the electronic device shown.

[0059] In this embodiment, the watch body 10 is a rectangular parallelepiped structure, and the watch body 10 includes a shell 11, a display screen 12, a processor 13 and a blood pressure measurement component 14. The display screen 12 is connected to the shell 11, and surrounds the shell 11 to form a receiving space A of the watch body 10. The processor 13 and the blood pressure measurement component 14 are both located in the receiving space A. Among them, the rectangular parallelepiped structure above includes a rectangular parallelepiped structure and a structure similar to a rectangular parallelepiped. The structure similar to a rectangular parallelepiped means that the outer surface of the rectangular parallelepiped may be partially concave or partially convex, and the following description of the shape of the structure can be understood in the same way. It should be understood that in other embodiments, the watch body 10 may also be a cylindrical, truncated cone, cube or other special-shaped structure.

[0060] The housing 11 includes a bottom wall 111 and a frame 112. The bottom wall 111 is fixed to one side of the frame 112, and the display screen 12 is fixed to a side of the frame 112 away from the bottom wall 111, that is, the bottom wall 111 and the display screen 12 are respectively fixed to opposite sides of the frame 112. The bottom wall 111, the frame 112 and the display screen 12 together enclose a receiving space A of the watch body 10. When the user wears the electronic device 100, the display screen 12 is arranged away from the user's wrist, and the bottom wall 111 is arranged close to the user's wrist.

[0061] In this embodiment, the bottom wall 111 can be detachably mounted on the frame 112 to facilitate the maintenance and replacement of functional components such as the memory card, SIM card, and speaker in the watch body 10. Of course, in other embodiments, the bottom wall 111 and the frame 112 can also be an integrally formed structure to improve the stability of the watch body 10.

[0062] The frame includes a first side and a second side that are arranged opposite to each other, and the mounting portion of the first belt body 21 and the mounting portion of the second belt body 22 are detachably mounted on the first side and the second side, respectively.

[0063] The bottom wall 111 includes a top surface 1111 facing the receiving space A and a bottom surface 1112 disposed opposite to the top surface 1111. The bottom surface 1112 is provided with a mounting groove 113, and the mounting groove 113 is used to mount the airbag 50. In this embodiment, the number of the mounting groove 113 is one, and the mounting groove 113 is disposed close to the first side. Of course, in other embodiments, the opposite sides of the mounting groove 113 can also be close to the first side and the second side, respectively. Alternatively, the mounting groove 113 can also be disposed in other structures such as the frame 112.

[0064] The mounting groove 113 is provided with a connecting hole 114 connected to the receiving space A, and the connecting hole 114 passes through the top surface 1111 and the groove wall of the mounting groove 113. The connecting hole 114 is used to achieve communication between the airbag 50 and the components of the blood pressure measurement assembly 14 located in the receiving space A. In this embodiment, the number of the connecting hole 114 is one. Of course, in other embodiments, the number of the connecting holes can be one or more. Alternatively, in other embodiments, the connecting hole is not provided in the mounting groove, and the connecting hole can be provided at other positions of the bottom wall 111 or the housing 11.

[0065] like Figure 4 and Figure 5 , Figure 5 yes Figure 2 Schematic diagram of the exploded structure of the electronic device shown.

[0066] In some embodiments, the electronic device 100 further includes a fixing member 15, which is fixed in the mounting groove 113 and is located on the side of the airbag 50 away from the bottom wall 111, so as to fix the airbag 50, prevent the airbag 50 from falling off from the communication hole 114, and ensure the stability of the connection between the airbag 50 and the blood pressure measurement component 14 through the communication hole 114. The fixing member 15 can also prevent the airbag 50 from falling off from the mounting groove 113, and improve the installation stability between the airbag 50 and the bottom wall 111.

[0067] The display screen 12 includes a display panel and a cover plate fixed on the display panel. The cover plate can be made of a lens material such as glass. The display panel can be LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), AMOLED (Active-Matrix Organic Light Emitting Diode), FLED (Flex Light-Emitting Diode), Mini LED, MicroLED, Micro OLED, QLED (Quantum Dot Light Emitting Diodes), etc.

[0068] The display panel may also be integrated with a touch function, that is, the display panel is a touch display panel, that is, the display panel can be used as an input device for receiving input and as a device for providing output. In other words, the display screen 12 is a touch screen. The display panel is electrically connected to the processor 13. The display panel can generate a touch signal and transmit the touch signal to the processor 13. The processor 13 receives the touch signal and controls the opening of the application software (Application, App) in the table body 10 according to the touch signal. For example, the user can choose to open or edit the graphic by touching or pressing the graphic position on the display screen 12.

[0069] The processor 13 is accommodated in the accommodation space A. The processor 13 may include one or more processing units, for example: the processing unit may include an application processor (AP), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc.

[0070] Among them, different processing units can be independent devices or integrated in one or more processors 13. Among them, the processor 13 can be the nerve center and command center of the electronic device 100. The processor 13 can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of fetching and executing instructions. In addition, the processor 13 can also include a storage unit for storing instructions and data. For example, the storage unit of the processor 13 is a cache memory. The memory can save instructions or data that the processor 13 has just used or circulated. If the processor 13 needs to use the instruction or data again, it can be directly called from the memory, avoiding repeated access, reducing the waiting time of the processor 13, and thus improving the efficiency of the system.

[0071] like Figure 4, the blood pressure measurement component 14 is electrically connected to the processor 13. In the present embodiment, the blood pressure measurement component 14 comprises an air pump 141 and a pressure sensor 142. The air pump 141 is electrically connected to the processor 13 to receive a control signal sent by the processor 13, and to extract or discharge gas according to the control signal. The pressure sensor 142 is spaced apart from the air pump 141 and is electrically connected to the processor 13 to receive a control signal sent by the processor 13, and to sense a pressure signal according to the control signal, and can convert the pressure signal into an electrical signal. Among them, the pressure sensor 142 can be a capacitive pressure sensor. The capacitive pressure sensor comprises at least two parallel plates having a conductive material. When a force acts on the pressure sensor 142, the capacitance between the electrodes changes. The processor 13 determines the intensity of the pressure based on the change in the electrode capacitance. Of course, the pressure sensor 142 can also be a resistive pressure sensor or an inductive pressure sensor, etc.

[0072] Specifically, the air pump 141 and the pressure sensor 142 are both located in the receiving space A of the watch body 10, and the air pump 141 is connected to the connecting hole 114 to extract or discharge gas from the airbag 50 through the connecting hole 114. The pressure sensor 142 is arranged near the connection between the connecting hole 114 and the airbag 50, so that the pressure sensor 142 can sense the change of air pressure and measure blood pressure.

[0073] In some embodiments, the watch body 10 also includes a sensing component. The sensing component is spaced apart from the blood pressure measurement component 14 and is electrically connected to the processor 13. Specifically, the bottom wall 111 includes a mounting hole that runs through the top surface 1111 and the bottom surface 1112. The sensing component includes a heart rate detection sensor, which is directly opposite the mounting hole (not shown) or at least partially accommodated in the mounting hole. Among them, the heart rate detection sensor is an optical heart rate sensor. When the user wears the electronic device 100, the bottom surface 1112 of the bottom wall 111 fits the user's wrist, and the optical heart rate sensor can send a heart rate sensing signal through the mounting hole to achieve accurate detection of the heart rate, improve the functional diversity of the electronic device 100, and enhance the user's experience. Of course, the heart rate detection sensor can also be a bone conduction sensor or other sensor that can perform heart rate detection.

[0074] In addition, the sensing component may also include sensors such as a gyroscope sensor, an air pressure sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor or an ambient light sensor to further improve the functional diversity of the electronic device 100 and enhance the user experience.

[0075] like Figure 3In this embodiment, the watch body 10 may further include a Hall sensor 16, which is disposed in the watch body 10 and electrically connected to the processor 13. Specifically, the Hall sensor 16 may be disposed inside the receiving space A and disposed opposite to the mounting groove 113, or the Hall sensor 16 may be disposed in the mounting groove 113. The Hall sensor 16 is a device based on the Hall effect, which can identify changes in the magnetic field, and can output a voltage according to the measured magnetic field conditions, and is used to sense the type of the strap 20 installed on the watch body 10.

[0076] See also Figure 5 and Figure 6 , Figure 6 yes Figure 5 The structure of the first belt body of the electronic device is shown in another angle.

[0077] It is understandable that the watchband 20 can be of various types to meet the different needs of users. For example, in different application scenarios, when the user measures blood pressure, the watchband 20 needs to have an airbag, and when blood pressure measurement is not required, the watchband 20 is more comfortable to wear without an airbag. Alternatively, in different application needs of users, blood pressure measurement is suitable for users to measure blood pressure, and can also be suitable for the user's family members to measure blood pressure.

[0078] In this embodiment, there are two types of watch straps 20, namely, a first watch strap and a second watch strap. The first watch strap is provided with a first air bag, and the second watch strap is provided with a second air bag. The first air bag and the second air bag have different lengths. It is understandable that the length of the first watch strap is adapted to the length of the first air bag, and the length of the second watch strap is adapted to the length of the second air bag. It is understandable that the first watch strap and the second watch strap are selectively installed on the watch body 10, that is, one watch body and one watch strap match. The user can choose to install the first watch strap or the second watch strap on the watch body as needed.

[0079] It is understandable that the premise for obtaining accurate blood pressure values ​​is that the airbag of the watchband 20 fully covers the radial artery and the ulnar artery. However, in order to adapt to users with different wrist circumferences, existing watchbands are designed to be longer. For users with small wrist circumferences, an overly long watchband will inevitably be rolled into the bottom of the watch body, affecting the user experience. In view of this, there are two types of watchbands 20 in this embodiment. The airbags of different types of watchbands 20 have different lengths. Users with different wrist circumferences can choose watchbands 20 with different airbag lengths as needed. On the premise of ensuring that the airbag of the watchband 20 can fully cover the radial artery and the ulnar artery, it can also ensure that the length of the watchband 20 is not too long, thereby ensuring the user experience.

[0080] In this embodiment, the matching mode of the first airbag and the first strap is the same as the matching mode of the second airbag and the second strap. The matching mode of the first airbag and the first strap is described below as an example. The first airbag is arranged inside the first strap body 21 and installed in the installation groove 113. Of course, in other embodiments, the first airbag can also be arranged inside the second strap body. Alternatively, the first airbag can also be arranged inside the watch body and the first strap body. Alternatively, the first airbag can also be arranged inside the first watch body, the watch body, and the second strap body.

[0081] In this embodiment, the specific structure of the first airbag is the same as that of the second airbag, except for the length. The first airbag will be used as an example for description. Figure 5 and Figure 6 The first airbag 50a includes a mounting portion 51. When the first airbag 50a is installed in the corresponding mounting groove 113, the mounting portion 51 of the first airbag 50a is installed in the mounting groove 113, and the fixing member 15 is located on the surface of the mounting portion 51 facing away from the mounting groove 113, so as to install the first airbag 50a on the watch body 10. An air nozzle 52 is provided on the mounting portion 51. When the first airbag 50a is installed in the corresponding mounting groove 113, the air nozzle 52 is plugged into the connecting hole 114 of the shell to achieve communication between the first airbag 50a and the air pump 141, so that the air pump 141 can extract gas from or discharge gas from the first airbag 50a.

[0082] Of course, in other embodiments, the first airbag and the second airbag may have the same length but different widths. Alternatively, the first airbag and the second airbag may have different lengths and widths. Alternatively, the first airbag and the second airbag may have different volumes, that is, the first airbag and the second airbag may have different inflation volumes.

[0083] Please also read Figure 4 and Figure 6 In some embodiments, a groove is provided on the periphery of the air nozzle 52, and a sealing ring 53 is provided in the groove to seal the gap between the air nozzle 52 and the hole wall of the communication hole 114, so as to ensure that the first airbag 50a does not leak. Of course, in other embodiments, the air nozzle 52 and the communication hole 114 can also be sealed by other structures besides the sealing ring 53.

[0084] It is understandable that the way the second airbag is installed in the corresponding installation groove 113 of the watch body 10 can be the same as or different from the first airbag 50a, which will not be repeated here.

[0085] When the user wears the electronic device 100 on the user's wrist, the first airbag 50a fits the user's wrist. When the electronic device 100 receives the blood pressure measurement instruction, the processor 13 sends a blood pressure measurement signal to the air pump 141 and the pressure sensor 142. The air pump 141 inflates and pressurizes the first airbag 50a through the connecting hole 114 and the air nozzle 52. At this time, the first airbag 50a will swell and compress the radial artery and ulnar artery of the user. The pressure sensor 142 detects the air pressure value in the first airbag 50a and feeds it back to the processor 13 in real time. The processor 13 determines whether the air pressure value in the first airbag 50a meets the requirements of blood pressure measurement. If not, the blood pressure measurement signal continues to be sent to the air pump 141, and the air pump 141 continues to inflate and pressurize the first airbag 50a until the processor 13 determines that the air pressure value fed back by the pressure sensor 142 meets the requirements of blood pressure measurement. The processor 13 calculates the user's blood pressure according to the air pressure value fed back by the pressure sensor 142 in real time, and displays it to the user through the display screen 12. After the blood pressure measurement is completed, the processor 13 stops sending the blood pressure measurement signal, the air pump 141 and the pressure sensor 142 both stop working, the gas in the first airbag 50a is transmitted to the air pump 141 and discharged through the air pump 141, and then the first airbag 50a returns to being flat and fits the user's wrist.

[0086] For example, in this embodiment, Figure 7 , the length of the first airbag 50a is less than the length of the second airbag 50b, and correspondingly, the length of the first strap body of the first watchband is less than the length of the first strap body of the second watchband. When the watchband 20 is the first watchband, the first watchband is a short airbag watchband; when the watchband 20 is the second watchband, the second watchband is a long airbag watchband. The first watchband is suitable for users with smaller wrist circumferences, and the second watchband is suitable for users with larger wrist circumferences. For example, the first watchband can be suitable for users with wrist circumferences in the range of 130mm to 160mm (including 130mm and 160mm), and the second watchband can be suitable for users with wrist circumferences in the range of 161mm to 230mm (including 230mm). It can be understood that the lengths of the second straps 22 of the first watchband and the second watchband can be the same or different.

[0087] In this embodiment, Figure 5, a magnet can also be provided on the strap 20. Specifically, the magnet is provided at the mounting portion of the airbag 50. When the airbag 50 is installed in the mounting groove 113, the magnet and the Hall sensor 16 are arranged relative to each other. For example, it can be understood that the magnet provided on the first strap is the first magnet 54, and the magnet provided on the second strap is the second magnet. When the strap 20 is the first strap, the first magnetic pole of the first magnet 54 provided on the first airbag 50a faces the Hall sensor 16. When the strap 20 is the second strap, the second magnetic pole of the second magnet provided on the second airbag faces the Hall sensor 16. The first magnetic pole and the second magnetic pole are different. In this embodiment, the first magnetic pole is the S pole, and the second magnetic pole is the N pole. Of course, in other embodiments, the first magnetic pole can also be the N pole, and the second magnetic pole can also be the S pole.

[0088] Of course, in other embodiments, the first magnet may also be disposed on the mounting portion of the first strap, and the second magnet may be disposed on the mounting portion of the second strap.

[0089] When the first strap 21 is installed on the watch body 10, if the Hall sensor 16 detects the magnetic field of the first magnetic pole, the processor 13 determines that the first strap is installed on the watch body 10. If the Hall sensor 16 detects the magnetic field of the second magnetic pole, the processor 13 determines that the second strap is installed on the watch body 10. The processor 13 can send the detection result to the display screen 12 ( Figure 3 ) to present it to the user, who can know whether he is wearing the wrong strap based on the test results, thus avoiding the problem of decreased blood pressure accuracy caused by the user using the wrong strap.

[0090] In this embodiment, a Hall sensor 16 is set on the watch body 10 and a magnet is set on the airbag 50. The magnets set on the airbags 50 of different types of straps 20 have different magnetic poles facing the Hall sensor 16. Therefore, the Hall sensor 16 can identify the type of strap 20 installed on the watch body 10 by detecting the type of magnetic poles. The user can know whether he is wearing the wrong strap based on the identification result, thereby avoiding the problem of decreased blood pressure accuracy caused by the user using the wrong strap.

[0091] It is understandable that if Figure 8, the Hall sensor 16 includes a first output pin 161 and a second output pin 162. The Hall sensor 16 can identify changes in magnetic fields, including N-pole magnetic fields, S-pole magnetic fields, and no magnetic fields. When the watch strap 20 is installed on the watch body 10, if the watch strap 20 is a first watch strap, the S pole of the first airbag 50a faces the Hall sensor 16, then the level detection of the first output pin 161 of the Hall sensor 16 is a low level, and the level detection of the second output pin 162 is a high level. If the watch strap 20 is a second watch strap, and the N pole of the second airbag faces the Hall sensor 16, then the level detection of the first output pin 161 of the Hall sensor 16 is a high level, and the level detection of the second output pin 162 is a low level.

[0092] In this embodiment, the Hall sensor 16 can also identify the situation where there is no magnetic field. When the airbag 50 is not installed on the watch body 10, the level detection of the first output pin 161 and the second output pin 162 of the Hall sensor 16 are both low levels. It can be understood that when the Hall sensor 16 detects that there is no magnetic field, it may also be a situation where the airbag 50 is installed loosely. When the user receives the watch body 10 of the electronic device 100 without the airbag 50 installed, the airbag 50 can be installed on the watch body 10 or the airbag 50 can be checked to see if it is loose, so as to avoid the user washing hands or taking a bath when the airbag 50 is loose, causing water damage to the device.

[0093] Of course, in some other embodiments, the electronic device 100 may identify the type of the strap 20 in a manner other than by using the Hall sensor and the magnet. That is, the electronic device 100 may not include the Hall sensor and the magnet. The processor 13 may also control the air pump 141 to inflate the strap 20 to obtain test data, and determine whether the strap 20 is the first strap or the second strap through the test data. Specifically, the air pump 141 in the watch body 10 may inflate the airbag 50. Since the airbags of the first strap and the second strap are of different lengths, the air pressure changes identified by the pressure sensor 142 are different when the airbags of the first strap and the second strap are inflated. The slopes of the pressurization curves of the first strap and the second strap in the inflated state are different, and the slope of the pressurization curve is the test data. By determining the slope of the pressurization curve of the strap 20 in the inflated state, it is determined whether the strap 20 is the first strap or the second strap.

[0094] The second embodiment of the electronic device 100 of the present application is introduced below. The structure of the electronic device 100 of this embodiment is roughly the same as that of the electronic device 100 of the first embodiment. The parts with the same structure can refer to the drawings of the first embodiment. The difference is that there are three types of watchbands 20 in this embodiment, namely, a short airbag watchband, a long airbag watchband and an ordinary watchband. Both the short airbag watchband and the long airbag watchband are provided with airbags, while the ordinary watchband is not provided with airbags. The short airbag watchband is provided with a first airbag, and the long airbag watchband is provided with a second airbag. The lengths of the first airbag and the second airbag are different, and the ordinary watchband includes a cover plate. Among them, the short airbag watchband is the first watchband, and the long airbag watchband and the ordinary watchband are the second watchband. Of course, in other embodiments, the long airbag watchband can be the first watchband, and the short airbag watchband and the ordinary watchband can be the second watchband.

[0095] It is understandable that the premise of obtaining accurate blood pressure values ​​is that the airbag of the watchband 20 fully covers the radial artery and the ulnar artery. However, in order to adapt to users of different wrist sizes, the existing watchbands are designed to be longer. For users with small wrists, the overly long watchband will inevitably be rolled up at the bottom of the watch body, affecting the user experience. At the same time, electronic devices not only have the functional attribute of measuring blood, but also have other measurement functions or time display functions. When used in scenarios where blood pressure measurement is not required, the wearing comfort of the watchband with airbags is not good.

[0096] In view of this, there are three types of watchbands 20 in this embodiment, including long airbag watchbands, short airbag watchbands and ordinary watchbands. When measuring blood pressure, users with different wrist circumferences can choose watchbands 20 with different airbag lengths as needed. On the premise of ensuring that the airbags of the watchband 20 can fully cover the radial artery and the ulnar artery, the length of the watchband 20 can also be ensured not to be too long, thereby ensuring user experience. When not measuring blood pressure, users can choose ordinary watchbands to improve wearing comfort.

[0097] In this embodiment, the matching mode of the first airbag and the short airbag strap, and the matching mode of the second airbag and the long airbag strap can refer to the matching mode of the first airbag and the first strap in the first embodiment, and will not be repeated. It can be understood that since the first airbag can be detachably connected to the first strap body and the watch body of the short airbag strap, the second airbag can be detachably connected to the first strap body and the watch body of the long airbag strap. The following description takes the short airbag strap as an example.

[0098] like Fig. 9After the first airbag is removed from the first strap body of the short airbag watchband and from the mounting slot of the watch body, the cover plate 60 covers the mounting slot 113. The cover plate 60 includes an air nozzle, which is arranged at the vent hole of the mounting slot 113 to seal the vent hole, thereby turning the short airbag watchband into a normal watchband. Similarly, the long airbag watchband can also be turned into a normal watchband by removing the second airbag. Of course, in other embodiments, the short airbag watchband can also be turned into a normal watchband after directly removing the first airbag.

[0099] The length of the first airbag is smaller than that of the second airbag, and correspondingly, the length of the first strap body of the short airbag strap is smaller than that of the first strap body of the long airbag strap. The short airbag strap is suitable for users with smaller wrist circumference, and the long airbag strap is suitable for users with larger wrist circumference. When the strap 20 is an ordinary strap, the cover plate 60 covers the mounting slot. For example, the short airbag strap can be suitable for users with wrist circumferences in the range of 130mm to 160mm (including 130mm and 160mm), and the long airbag strap can be suitable for users with wrist circumferences in the range of 161mm to 230mm (including 230mm). It is understandable that the lengths of the second strap bodies 22 of the short airbag strap and the long airbag strap can be the same or different. Ordinary straps are suitable for scenarios where users do not measure blood pressure.

[0100] In this embodiment, a magnet can also be provided on the strap 20. Specifically, the magnet is provided on the mounting portion 51 of the airbag, and when the airbag is installed in the mounting groove 113, the magnet and the Hall sensor 16 are arranged relative to each other. It can be understood that the magnet provided on the first strap is the first magnet 54, and the magnet provided on the second strap is the second magnet. For example, when the strap 20 is a short airbag strap, the first magnetic pole of the first magnet 54 provided on the first airbag 50a faces the Hall sensor 16. When the strap 20 is a second strap (a long airbag strap or an ordinary strap), the second magnet provided on the second airbag or the second magnetic pole provided on the cover plate faces the Hall sensor 16. The first magnetic pole and the second magnetic pole are different. In this embodiment, the first magnetic pole is an S pole, and the second magnetic pole is an N pole. Of course, in other embodiments, the first magnetic pole can also be an N pole, and the second magnetic pole can also be an S pole.

[0101] Of course, in other embodiments, the first magnet may also be disposed on the mounting portion of the first strap, and when the strap is a long airbag strap, the second magnet may be disposed on the mounting portion of the second strap.

[0102] When the first strap 21 is installed on the watch body 10, if the Hall sensor 16 detects the magnetic field of the first magnetic pole, the processor 13 determines that the strap 20 is a short airbag strap. If the Hall sensor 16 detects the magnetic field of the second magnetic pole, the processor 13 determines that the strap 20 is a second strap. Then the processor 13 drives the air pump to inflate the second strap to obtain test data; then the test data is compared with the preset data to determine the type of the test data. If the test data is the first data, the second strap is a long airbag strap; if the test data is the second data, the second strap is an ordinary strap. The processor 13 can send the test results to the display screen 12 to present them to the user. The user can know whether he is wearing the wrong strap based on the test results, avoiding the problem of decreased blood pressure accuracy caused by the user using the wrong strap.

[0103] It is understandable that the air pump 141 in the watch body 10 can inflate the second strap. Since the long airbag strap has an airbag and the ordinary strap does not have an airbag, the air pressure changes recognized by the pressure sensor 142 are different when the long airbag strap and the ordinary strap are inflated. Since the ordinary strap does not have an airbag and cannot store gas, the slope of the pressurization curve of the ordinary strap will rise rapidly at a fixed slope in a short period of time. The long airbag strap has an airbag, and the slope of the pressurization curve of the long airbag strap will rise slowly at a fixed slope over a period of time.

[0104] The slope of the pressurization curve of the long airbag watchband and the ordinary watchband in the inflated state is different, and the slope of the pressurization curve is the test data. By comparing the slope of the pressurization curve of the second watchband with the predetermined data (the slope of the pressurization curve of the long airbag watchband and the slope of the pressurization curve of the ordinary watchband), if the slope of the pressurization curve of the second watchband matches the slope of the pressurization curve of the long airbag watchband, it means that the test data is the first data, and the second watchband is a long airbag watchband. If the slope of the pressurization curve of the second watchband matches the slope of the pressurization curve of the ordinary watchband, it means that the test data is the second data, and the second watchband is an ordinary watchband.

[0105] In this embodiment, a Hall sensor 16 is provided on the watch body 10, and a magnet is provided on the airbag or cover plate. The magnets provided on the airbag or cover plate of the first watchband and the second watchband face different magnetic poles of the Hall sensor 16, so that the Hall sensor 16 can identify whether the watchband 20 installed on the watch body 10 is the first watchband or the second watchband by the type of magnetic pole detected. If the watchband 20 is the first watchband, it can be obtained that the watchband 20 is a short airbag watchband. If the watchband 20 is the second watchband, the second watchband is further inflated to identify whether the second watchband is a long airbag watchband or a normal watchband. The processor 13 presents the recognition result to the user through the display screen 12. The user can know whether he is wearing the wrong watchband based on the recognition result, thereby avoiding the problem of decreased blood pressure accuracy caused by the user using the wrong watchband.

[0106] In this embodiment, when the Hall sensor 16 detects that there is no magnetic field, it may also be that the airbag 50 or the cover plate is loosely installed. When the user receives the electronic device 100 without the airbag 50 or the cover plate installed on the watch body 10, the airbag 50 or the cover plate can be installed on the watch body 10 or the airbag 50 or the cover plate can be checked to see if they are loose, so as to avoid water damage to the device when the user washes his hands or takes a bath when the airbag 50 is loose.

[0107] Of course, in other embodiments, while the Hall sensor 16 identifies the magnetic poles of the strap 20, the air pump 141 in the watch body 10 can inflate the strap 20 to confirm in a short time whether the strap 20 is an ordinary strap, so that the processor 13 can quickly determine the type of strap 20 in a short time based on the results obtained by the way the Hall sensor 16 and the magnetic poles cooperate and the way the strap 20 is inflated.

[0108] Of course, in other embodiments. The electronic device 100 can also directly identify whether the strap 20 is a short airbag strap, a long airbag strap, or a normal strap by inflating the strap 20. With this identification method, the electronic device 100 does not need to be provided with a Hall sensor 16 and a magnet, which can reduce the components of the electronic device 100, reduce costs, and improve the integration of the electronic device 100. However, compared with first identifying the first strap and the second strap by combining the Hall sensor 16 and the magnet, and then further identifying the long airbag strap and the normal strap by inflating the strap 20, identifying the strap 20 by inflating the strap 20 takes longer time, and the user experience is not as good as the latter.

[0109] The third embodiment of the electronic device 100 of the present application is described below. The structure of the electronic device 100 of this embodiment is substantially the same as that of the electronic device 100 of the second embodiment. For the same parts of the structure, reference can be made to the drawings of the second embodiment. The difference is that Fig.10 The electronic device 100 further includes an acquisition module 30 and a comparison module 40, and both the acquisition module 30 and the comparison module 40 are electrically connected to the processor 13. Of course, in some embodiments, the acquisition module 30 and the comparison module 40 may also be part of the processor 13.

[0110] The acquisition module 30 is used to obtain the wrist circumference data of the user. For example, the watch body may include a button, and the display screen or button of the electronic device is used to receive the user's input operation. The acquisition module 30 is used to obtain the electrical signal of the display screen or the button to obtain the wrist circumference data input by the user. The comparison module 40 is used to compare the wrist circumference data with the type of the strap 20 to obtain whether the strap 20 is selected correctly or incorrectly. If the strap 20 is selected incorrectly, the processor 13 reminds the user to replace the correct strap 20. If the strap 20 is selected correctly, the blood volume measurement step is entered. Of course, in other embodiments, the acquisition module 30 can also automatically measure and obtain the user's wrist circumference data.

[0111] This embodiment identifies the type of the strap 20 and compares the type of the strap 20 with the wrist circumference data of the user to determine whether the user has installed the correct or incorrect strap 20. If the strap 20 is correctly selected, the blood volume measurement step is entered. If the strap 20 is incorrectly selected, the user is reminded to replace the correct strap 20 to avoid the user selecting the wrong strap 20, making the blood pressure measurement more accurate.

[0112] In some other embodiments, see Fig.11 , Fig.11 yes Figure 2 A schematic structural diagram of another embodiment of an electronic device is shown.

[0113] This embodiment and Figure 2 The structures of the embodiments shown are roughly the same, and the same parts are not repeated here. The difference is that there are three types of watch straps 20 in this embodiment, namely, a short airbag watch strap, a long airbag watch strap and a common watch strap. Both the short airbag watch strap and the long airbag watch strap are provided with airbags, while the common watch strap is not provided with airbags. The short airbag watch strap is provided with a first airbag, and the long airbag watch strap is provided with a second airbag. The lengths of the first airbag and the second airbag are different, and the common watch strap includes a cover plate. Among them, the short airbag watch strap is the first watch strap, and the long airbag watch strap and the common watch strap are the second watch strap.

[0114] In this embodiment, the airbag 50 is arranged on the inner side of the first strap body, the watch body and the second strap body. When the strap 20 is a short airbag strap, the first airbag is arranged on the inner side of the first strap body, the watch body and the second strap body; when the strap 20 is a long airbag strap, the second airbag is arranged on the inner side of the first strap body, the watch body and the second strap body; when the strap 20 is an ordinary strap, the cover plate is arranged on the watch body.

[0115] Among them, the length of the first airbag is smaller than that of the second airbag, and the length of the short airbag strap is smaller than that of the long airbag strap. The short airbag strap is suitable for users with smaller wrist circumference, and the long airbag strap is suitable for users with larger wrist circumference. For example, the short airbag strap can be suitable for users with wrist circumferences ranging from 130mm to 160mm (including 130mm and 160mm), and the long airbag strap can be suitable for users with wrist circumferences ranging from 161mm to 230mm (including 161mm and 230mm). Ordinary airbags are suitable for scenarios where blood pressure is not measured.

[0116] In this embodiment, the air nozzle of the airbag 50 can be arranged at a portion of the airbag close to the watch body, and this application does not limit this.

[0117] In some other embodiments, see Fig.12 , Fig.12 yes Figure 2 A schematic structural diagram of another embodiment of an electronic device is shown.

[0118] This embodiment and Fig.11 The structures of the embodiments shown are roughly the same, and the same parts are not repeated. The difference is that there are three types of watchbands 20 in this embodiment, namely, short airbag watchband, long airbag watchband and ordinary watchband. Both the short airbag watchband and the long airbag watchband are provided with airbags, while the ordinary watchband is not provided with airbags. The short airbag watchband is provided with a first airbag, the long airbag watchband is provided with a second airbag, the lengths of the first airbag and the second airbag are different, and the ordinary watchband includes a cover plate. Among them, the short airbag watchband is the first watchband, and the long airbag watchband and the ordinary watchband are the second watchband. In this embodiment, the airbag 50 is provided on the inner side of the first strap body and the watch body. When the watchband 20 is a short airbag watchband, the first airbag is provided on the inner side of the first strap body and the watch body; when the watchband 20 is a long airbag watchband, the second airbag is provided on the inner side of the first strap body and the watch body; when the watchband 20 is a normal watchband, the cover plate is provided on the watch body.

[0119] Among them, the length of the first airbag is smaller than that of the second airbag, and the length of the short airbag strap is smaller than that of the long airbag strap. The short airbag strap is suitable for users with smaller wrist circumference, and the long airbag strap is suitable for users with larger wrist circumference. For example, the short airbag strap can be suitable for users with wrist circumferences ranging from 130mm to 160mm (including 130mm and 160mm), and the long airbag strap can be suitable for users with wrist circumferences ranging from 161mm to 230mm (including 161mm and 230mm). Ordinary airbags are suitable for scenarios where blood pressure is not measured.

[0120] In this embodiment, the air nozzle of the airbag 50 can be arranged at a portion of the airbag close to the watch body, and this application does not limit this.

[0121] The above specifically introduces the structure of an electronic device 100. The following will introduce a method for identifying a strap 20 of the electronic device 100 in combination with the structure of the first embodiment of the electronic device 100 described above.

[0122] See also Fig.13 , Fig.13 1 is a flow chart of the method for identifying the strap 20 of the electronic device 100 in the first embodiment. The method for identifying the strap 20 of the electronic device 100 includes the following steps S110 to S130:

[0123] S110: Acquire the magnetic poles of the strap 20.

[0124] Specifically, Figure 5 and Fig.14 The electronic device 100 includes a watch body 10 ( Figure 1) and a watchband 20. An airbag 50 is provided inside the watchband 20. In this embodiment, the watchband 20 has two types, namely a first watchband and a second watchband. The first watchband is provided with a first airbag, and the second watchband is provided with a second airbag. The first airbag and the second airbag are different in length, so that the user can select a suitable watchband 20 according to his / her wrist circumference.

[0125] The watch body 10 is provided with a Hall sensor 16, and the airbag 50 of the watch strap 20 is provided with a magnet. The ways of setting the magnets in the airbags of the first and second watch straps are different. When the watch strap 20 is the first watch strap, the watch strap 20 is installed on the watch body 10, and the first magnetic pole of the first magnet is arranged opposite to the Hall sensor 16 of the watch body 10. When the watch strap 20 is the second watch strap, the watch strap 20 is installed on the watch body 10, and the second magnetic pole of the second magnet is arranged opposite to the Hall sensor 16 of the watch body 10, and the first magnetic pole and the second magnetic pole are different. The first magnetic pole is the S pole, and the second magnetic pole is the N pole. Since the Hall sensor 16 can detect the change of the magnetic field, and the magnetic poles of different watch straps 20 are different, the watch body 10 can identify the magnetic pole to obtain whether the watch strap 20 is the first watch strap or the second watch strap.

[0126] Before obtaining the magnetic pole of the strap 20, it also includes receiving a strap 20 identification instruction. It is understandable that when the processor 13 detects certain operations of the user, the processor 13 can send the strap 20 identification instruction to the Hall sensor 16. For example, when the processor 13 detects that the user turns on the electronic device 100 for the first time, when the processor 13 detects that the user opens the blood pressure measurement function page of the electronic device 100, when the processor 13 detects that the user installs the strap 20 to the watch body 10. After receiving the strap 20 identification instruction, the Hall sensor 16 detects the magnetic pole of the strap 20 to obtain the magnetic pole of the strap 20.

[0127] S120: Confirming that the strap 20 is the first strap or the second strap according to the magnetic pole of the strap 20.

[0128] Specifically, Fig.19 If the Hall sensor detects the magnetic field of the first magnetic pole, the watch strap 20 is the first watch strap; if the Hall sensor detects the magnetic field of the second magnetic pole, the watch strap 20 is the second watch strap. The first watch strap is a short airbag watch strap, and the second watch strap is a long airbag watch strap. The first watch strap is suitable for users with smaller wrist circumferences, and the second watch strap is suitable for users with larger wrist circumferences. For example, the first watch strap can be suitable for users with wrist circumferences within the range of 130mm to 160mm (including 130mm and 160mm), and the second watch strap can be suitable for users with wrist circumferences within the range of 161mm to 230mm (including 161mm and 230mm).

[0129] Of course, if the magnetic pole of the watch band 20 is non-polar, the airbag is not installed on the watch body 10, or the airbag is loose from the watch body 10.

[0130] S130: Send the type of the strap 20 to the user interface.

[0131] Specifically, when step S120 obtains that the strap 20 is the first strap, Fig.15 , "The current strap is detected to be a short airbag strap, please confirm whether the strap is correct" is sent to the user interface, and if the user confirms that the type of strap 20 is correct, the user clicks "Yes", and if the user confirms that the type of strap 20 is incorrect, the user clicks "No". In some embodiments, while "The current strap is detected to be a short airbag strap, please confirm whether the strap is correct" is sent, a note "Short airbag strap is suitable for users with a wrist circumference of 130 mm to 160 mm" is also added below the words.

[0132] When step S120 obtains that the strap 20 is the second strap, Fig.16 , "The current strap is detected to be a long airbag strap, please confirm whether the strap is correct" is sent to the user interface, and if the user confirms that the type of strap 20 is correct, the user clicks "Yes", and if the user confirms that the type of strap 20 is incorrect, the user clicks "No". In some embodiments, while "The current strap is detected to be a long airbag strap, please confirm whether the strap is correct" is sent, a note "The long airbag strap is suitable for users with wrist circumferences between 161 mm and 230 mm" is also added below the words.

[0133] When step S120 obtains that the watch body 10 is not installed with the watch strap 20 or the watch strap 20 is loose, Fig.17 , and send "It is detected that the strap is not currently installed or is loose, please install or adjust the strap" to the user interface. In some embodiments, below the above words, it is also noted that "the short airbag strap is suitable for users with a wrist circumference of 130mm to 160mm, and the long airbag strap is suitable for users with a wrist circumference of 161mm and 230mm. Please choose a suitable strap for installation."

[0134] This embodiment identifies the type of the strap 20 installed on the watch body 10 and sends the identification result to the user interface. The user can know whether he is wearing the wrong strap according to the identification result, avoiding the problem of decreased blood pressure accuracy caused by the user using the wrong strap. If the user receives the electronic device 100 without the strap 20 installed on the watch body 10, the strap 20 can be installed on the watch body 10 or the strap 20 can be checked to see if it is loose, avoiding water damage to the device when the user washes his hands or takes a bath when the strap 20 is loose.

[0135] Of course, in other embodiments, the electronic device 100 may also identify the type of the strap 20 without using the Hall sensor 16 and the magnet, for example, by inflating the strap 20. Specifically, after receiving the strap 20 identification instruction, the processor 13 controls the air pump 141 to inflate the strap 20, and the pressure sensor 142 obtains the air pressure change value to obtain the slope of the pressurization curve of the strap 20 in the inflated state. It can be understood that the airbag lengths of the long airbag strap and the short airbag strap are different, so the slopes of the pressurization curves of the two are different, and the slopes of the pressurization curves of the two can be stored in the processor 13 in advance. By comparing the obtained pressurization curve slope with the pre-stored pressurization curve slope, it is determined whether the strap 20 is a long airbag strap or a short airbag strap.

[0136] See also Fig.18 , Fig.18 2 is a flow chart of the method for identifying the strap 20 of the electronic device 100 in the second embodiment. The method for identifying the strap 20 of the electronic device 100 includes the following steps S210 to S240:

[0137] S210: Acquire the magnetic poles of the strap 20.

[0138] For details, please refer to Figure 5 and Fig.19 The electronic device 100 includes a watch body 10 ( Figure 1 ) and a watch strap 20. An airbag 50 is arranged inside the watch strap 20. In this embodiment, the watch strap 20 has three types, namely a short airbag watch strap, a long airbag watch strap and a common watch strap. Both the short airbag watch strap and the long airbag watch strap are provided with airbags, while the common watch strap is not provided with airbags. The short airbag watch strap is provided with a first airbag, and the long airbag watch strap is provided with a second airbag. The lengths of the first airbag and the second airbag are different, and the common watch strap includes a cover plate. Among them, the short airbag watch strap is the first watch strap, and the long airbag watch strap and the common watch strap are the second watch strap.

[0139] When measuring blood pressure, users with different wrist circumferences can choose watchbands 20 with different airbag lengths as needed, while ensuring that the airbags of the watchband 20 can fully cover the radial artery and the ulnar artery, and that the length of the watchband 20 is not too long, thereby ensuring user experience. When not measuring blood pressure, users can choose a normal watchband to improve wearing comfort.

[0140] The watch body 10 is provided with a Hall sensor 16, and the airbag 50 or cover plate of the watch strap 20 is provided with a magnet. The airbags or cover plates of the first and second watch straps are provided with magnets in different ways. When the watch strap 20 is the first watch strap, the watch strap 20 is installed on the watch body 10, and the first magnetic pole of the first magnet is arranged opposite to the Hall sensor 16 of the watch body 10. When the watch strap 20 is the second watch strap, the watch strap 20 is installed on the watch body 10, and the second magnetic pole of the second magnet is arranged opposite to the Hall sensor 16 of the watch body 10, and the first magnetic pole and the second magnetic pole are different. The first magnetic pole is the S pole, and the second magnetic pole is the N pole. Since the Hall sensor 16 can detect changes in the magnetic field, and the magnetic poles of different watch straps 20 are different, the watch body 10 can identify the magnetic pole to obtain whether the watch strap 20 is the first watch strap or the second watch strap.

[0141] Before obtaining the magnetic pole of the strap 20, it also includes receiving a strap 20 identification instruction. It is understandable that when the processor 13 detects certain operations of the user, the processor 13 can send the strap 20 identification instruction to the Hall sensor 16. For example, when the processor 13 detects that the user turns on the electronic device 100 for the first time, when the processor 13 detects that the user opens the blood pressure measurement function page of the electronic device 100, when the processor 13 detects that the user installs the strap 20 to the watch body 10. After receiving the strap 20 identification instruction, the Hall sensor 16 detects the magnetic pole of the strap 20 to obtain the magnetic pole of the strap 20.

[0142] S220: Confirming that the watch strap 20 is the first watch strap or the second watch strap according to the magnetic pole of the watch strap 20.

[0143] Specifically, Fig.19 If the Hall sensor detects the magnetic field of the first magnetic pole, the watch strap 20 is the first watch strap, that is, the watch strap 20 is a short airbag watch strap; if the Hall sensor detects the magnetic field of the second magnetic pole, the watch strap 20 is the second watch strap. The first watch strap is suitable for measuring blood pressure for users with a relatively small wrist circumference. For example, the first watch strap can be suitable for users with a wrist circumference within the range of 130mm to 160mm (including 130mm and 160mm).

[0144] Of course, if the magnetic pole of the watch band 20 is non-polar, the airbag or cover is not installed on the watch body 10, or the airbag or cover is loose from the watch body 10.

[0145] S230: If the watch strap 20 is the second watch strap, inflate the watch strap 20 and obtain the slope of the pressurization curve of the watch strap 20.

[0146] Specifically, Fig.19If the strap 20 is the second strap, it means that the second strap is a long airbag strap or a common strap. It is understandable that the air pump 141 in the watch body 10 can inflate the second strap. Since the long airbag strap has an airbag and the common strap does not have an airbag, the air pressure changes recognized by the pressure sensor 142 are different when the long airbag strap and the common strap are inflated. Fig. 20 Since ordinary watch straps do not have air bags and cannot store gas, the slope of the pressurization curve of ordinary watch straps will rise rapidly at a fixed slope (k1) in a short period of time. Long air bag watch straps have air bags, and the slope of the pressurization curve of long air bag watch straps will rise slowly at a fixed slope (k2) over a period of time.

[0147] The slope of the pressurization curve of the long airbag watchband and the ordinary watchband in the inflated state is different. The slope of the pressurization curve is the test data. By comparing the test data of the second watchband with the predetermined data (the slope of the pressurization curve of the long airbag watchband and the slope of the pressurization curve of the ordinary watchband). If the slope of the pressurization curve of the second watchband matches the slope of the pressurization curve of the long airbag watchband, it means that the test data is the first data, and the second watchband is a long airbag watchband. The second watchband is suitable for users with larger wrist circumferences. For example, the second watchband can be suitable for users with wrist circumferences within the range of 161mm to 230mm (including 161mm and 230mm). If the slope of the pressurization curve of the second watchband matches the slope of the pressurization curve of the ordinary watchband, it means that the test data is the second data, and the second watchband is an ordinary watchband. The ordinary watchband is suitable for users to wear when they do not measure blood pressure, thereby improving user comfort.

[0148] Of course, in other embodiments, the air pump 141 in the watch body 10 can inflate the strap 20 while the Hall sensor 16 identifies the magnetic poles of the strap 20. That is, step S220 and step S230 can be performed simultaneously. It is possible to confirm whether the strap 20 is a common strap in a short time, so that the processor 13 can quickly determine the type of the strap 20 in a short time based on the results obtained by the way the Hall sensor 16 and the magnetic poles cooperate and the way the strap 20 is inflated.

[0149] S240: Send the type of the strap 20 to the user interface.

[0150] Specifically, when step S220 obtains that the strap 20 is the first strap, Fig.15 , "The current strap is detected to be a short airbag strap, please confirm whether the strap is correct" is sent to the user interface, and if the user confirms that the type of strap 20 is correct, the user clicks "Yes", and if the user confirms that the type of strap 20 is incorrect, the user clicks "No". In some embodiments, while "The current strap is detected to be a short airbag strap, please confirm whether the strap is correct" is sent, a note "Short airbag strap is suitable for users with a wrist circumference of 130 mm to 160 mm" is also added below the words.

[0151] When the step S230 determines that the strap 20 is a long airbag strap, Fig.16 , "The current strap is detected to be a long airbag strap, please confirm whether the strap is correct" is sent to the user interface, and if the user confirms that the type of strap 20 is correct, the user clicks "Yes", and if the user confirms that the type of strap 20 is incorrect, the user clicks "No". In some embodiments, while "The current strap is detected to be a long airbag strap, please confirm whether the strap is correct" is sent, a note "The long airbag strap is suitable for users with wrist circumferences between 161 mm and 230 mm" is also added below the words.

[0152] When step S230 determines that the watch strap 20 is a common watch strap, Fig.21 , "The current strap is detected to be a normal strap, please confirm whether the strap is correct" is sent to the user interface, and if the user confirms that the type of strap 20 is correct, the user clicks "Yes", and if the user confirms that the type of strap 20 is incorrect, the user clicks "No". In some embodiments, while "The current strap is detected to be a normal strap, please confirm whether the strap is correct" is sent, "Normal straps are suitable for scenarios where blood pressure is not measured" is also noted below the words.

[0153] When the step S230 shows that the watch body 10 is not equipped with the strap 20 or the strap 20 is loose, "It is detected that the strap is not currently installed or is loose, please install or adjust the strap" is sent to the user interface. In some embodiments, below the above words, it is also noted that "the short airbag strap is suitable for users with a wrist circumference of 130mm to 160mm, the long airbag strap is suitable for users with a wrist circumference of 161mm and 230mm, and the ordinary strap is suitable for scenes where blood pressure is not measured. Please select a suitable strap for installation".

[0154] This embodiment identifies the type of the strap 20 installed on the watch body 10 and sends the identification result to the user interface. The user can know whether he is wearing the wrong strap according to the identification result, avoiding the problem of decreased blood pressure accuracy caused by the user using the wrong strap. If the user receives the electronic device 100 without the strap 20 installed on the watch body 10, the strap 20 can be installed on the watch body 10 or the strap 20 can be checked to see if it is loose, avoiding water damage to the device when the user washes his hands or takes a bath when the strap 20 is loose.

[0155] Of course, in other embodiments, the electronic device 100 may also identify the type of the strap 20 without using the Hall sensor 16 and the first magnet 54 to cooperate, for example, the type of the strap 20 may be identified by inflating the strap 20. Specifically, after receiving the strap 20 identification instruction, the processor 13 controls the air pump 141 to inflate the strap 20, and the pressure sensor 142 obtains the air pressure change value to obtain the slope of the pressurization curve of the strap 20 in the inflated state. It can be understood that the airbag lengths of the long airbag strap and the short airbag strap are different, and the ordinary strap has no airbag, so the slopes of the pressurization curves of the three are different, and the slopes of the pressurization curves of the three can be stored in the processor 13 in advance. By comparing the obtained pressurization curve slope with the pre-stored pressurization curve slope, it is determined whether the strap 20 is a long airbag strap, a short airbag strap or an ordinary strap.

[0156] See also Fig. 22 , Fig. 22 2 is a flow chart of the strap 20 identification method of the electronic device 100 in the third embodiment. The strap 20 identification method of the electronic device 100 includes the following steps S310 to S350:

[0157] S310: Enter the user's wrist circumference data.

[0158] Specifically, Fig.23 The wrist circumference data of the user can be recorded in the electronic device 100 when the electronic device 100 is turned on. Specifically, when the electronic device 100 is used for the first time, a guidance setting can be provided to the user. For example, Fig.24 , the wrist circumference setting interface pops up, and the interface prompts the user to "Please select and enter the strap scale range according to the measured wrist circumference". The user can choose "1-11 (130mm-160mm)" or "12-18 (161mm-230mm)" according to their wrist circumference, and click "Next" after confirmation. Fig.24 When the user clicks "1~11(130mm~160mm)", the interface shows "This range is suitable for short airbag straps". Fig.25 When the user clicks "12-18 (161mm-230mm)", the interface displays "This range is suitable for long airbag straps". Of course, in other embodiments, the electronic device 100 can also automatically measure the user's wrist to obtain the user's wrist circumference data. Alternatively, the wrist circumference data can also be input during the process of identifying the strap 20.

[0159] S320: Acquire the magnetic poles of the strap 20.

[0160] Specifically, Figure 5 and Fig.23 The electronic device 100 includes a watch body 10 ( Figure 1) and a watch strap 20. An airbag 50 is arranged inside the watch strap 20. In this embodiment, the watch strap 20 has three types, namely a short airbag watch strap, a long airbag watch strap and a common watch strap. Both the short airbag watch strap and the long airbag watch strap are provided with airbags, while the common watch strap is not provided with airbags. The short airbag watch strap is provided with a first airbag, and the long airbag watch strap is provided with a second airbag. The lengths of the first airbag and the second airbag are different, and the common watch strap includes a cover plate. Among them, the short airbag watch strap is the first watch strap, and the long airbag watch strap and the common watch strap are the second watch strap.

[0161] When measuring blood pressure, users with different wrist circumferences can choose watchbands 20 with different airbag lengths as needed, while ensuring that the airbags of the watchband 20 can fully cover the radial artery and the ulnar artery, and that the length of the watchband 20 is not too long, thereby ensuring user experience. When not measuring blood pressure, users can choose a normal watchband to improve wearing comfort.

[0162] The watch body 10 is provided with a Hall sensor 16, and the airbag 50 or cover plate of the watch strap 20 is provided with a magnet. The airbags or cover plates of the first and second watch straps are provided with magnets in different ways. When the watch strap 20 is the first watch strap, the watch strap 20 is installed on the watch body 10, and the first magnetic pole of the first magnet is arranged opposite to the Hall sensor 16 of the watch body 10. When the watch strap 20 is the second watch strap, the watch strap 20 is installed on the watch body 10, and the second magnetic pole of the second magnet is arranged opposite to the Hall sensor 16 of the watch body 10, and the first magnetic pole and the second magnetic pole are different. The first magnetic pole is the S pole, and the second magnetic pole is the N pole. Since the Hall sensor 16 can detect changes in the magnetic field, and the magnetic poles of different watch straps 20 are different, the watch body 10 can identify the magnetic pole to obtain whether the watch strap 20 is the first watch strap or the second watch strap.

[0163] Before obtaining the magnetic pole of the strap 20, it also includes receiving the strap 20 identification instruction. It can be understood that when the processor 13 detects certain operations of the user, the processor 13 can send the strap 20 identification instruction to the Hall sensor 16. For example, when the processor 13 detects that the user has entered the wrist circumference data and clicked "Next", the strap 20 identification instruction is sent to the Hall sensor 16. Or, when the processor 13 detects that the user turns on the electronic device 100 for the first time. Or, when the processor 13 detects that the user opens the blood pressure measurement function page of the electronic device 100, the strap 20 identification instruction is sent to the Hall sensor 16. Or, when the processor 13 detects that the user installs the strap 20 to the watch body 10, the strap 20 identification instruction is sent to the Hall sensor 16.

[0164] like Fig.26 and Fig. 27After the Hall sensor 16 receives the identification instruction of the strap 20, it can send confirmation information of whether to detect to the user interface. The user interface displays "To ensure normal pressure, it is necessary to detect the installation of the strap in advance before measurement. Do you want to start the detection?" If the user confirms the detection, click "√", if not, click "×". When the user clicks "√", the words "Detecting" appear in the user interface.

[0165] During the detection process, the electronic device 100 first detects whether the user is wearing the electronic device 100. If the user is not wearing the electronic device 100, Fig.28 , the user interface displays the words "Please wear the electronic device for measurement" and an icon to prompt the user to wear the electronic device 100. If the user wears the electronic device 100, the magnetic poles of the strap 20 are detected. Specifically, the processor 13 sends a strap 20 identification instruction to the Hall sensor 16. After receiving the strap 20 identification instruction, the Hall sensor 16 detects the magnetic poles of the strap 20 to obtain the magnetic poles of the strap 20.

[0166] S330: Confirming that the strap 20 is the first strap or the second strap according to the magnetic pole of the strap 20.

[0167] Specifically, Fig.23 If the Hall sensor detects the magnetic field of the first magnetic pole, the watch strap 20 is the first watch strap, that is, the watch strap 20 is a short airbag watch strap; if the Hall sensor detects the magnetic field of the second magnetic pole, the watch strap 20 is the second watch strap. The first watch strap is suitable for measuring blood pressure for users with a relatively small wrist circumference. For example, the first watch strap can be suitable for users with a wrist circumference within the range of 130mm to 160mm (including 130mm and 160mm).

[0168] Of course, if the magnetic pole of the watch band 20 is non-polar, the airbag or cover is not installed on the watch body 10, or the airbag or cover is loose from the watch body 10.

[0169] S340: If the watch strap 20 is the second watch strap, inflate the watch strap 20 and obtain the slope of the pressurization curve of the watch strap 20.

[0170] Specifically, Fig.23If the strap 20 is the second strap, it means that the second strap is a long airbag strap or a common strap. It is understandable that the air pump 141 in the watch body 10 can inflate the second strap. Since the long airbag strap has an airbag and the common strap does not have an airbag, the air pressure changes recognized by the pressure sensor 142 are different when the long airbag strap and the common strap are inflated. Since the common strap does not have an airbag and cannot store gas, the slope of the pressurization curve of the common strap will rise rapidly at a fixed slope in a short time. The long airbag strap has an airbag, and the slope of the pressurization curve of the long airbag strap will rise slowly at a fixed slope over a period of time. The slope of the pressurization curve of the long airbag strap and the common strap in the inflated state is different. The slope of the pressurization curve is the test data. The test data of the second strap is compared with the predetermined data (the slope of the pressurization curve of the long airbag strap and the slope of the pressurization curve of the common strap).

[0171] If the slope of the pressurization curve of the second watchband matches the slope of the pressurization curve of the long airbag watchband, it means that the test data is the first data, and the second watchband is a long airbag watchband, and the second watchband is suitable for users with larger wrist circumferences, for example, the second watchband can be suitable for users with wrist circumferences within the range of 161mm to 230mm (including 161mm and 230mm). If the slope of the pressurization curve of the second watchband matches the slope of the pressurization curve of the ordinary watchband, it means that the test data is the second data, and the second watchband is an ordinary watchband, and the ordinary watchband is suitable for users to wear when they are not measuring blood pressure, so as to improve user comfort.

[0172] Of course, in other embodiments, the air pump 141 in the watch body 10 can inflate the strap 20 while the Hall sensor 16 identifies the magnetic poles of the strap 20. That is, step S330 and step S340 can be performed simultaneously to confirm whether the strap 20 is a common strap in a short time, so that the processor 13 can quickly determine the type of the strap 20 in a short time based on the results obtained by the way the Hall sensor 16 cooperates with the magnetic poles and the way the strap 20 is inflated.

[0173] Alternatively, when the processor 13 recognizes that the user's wrist circumference data corresponds to a long airbag strap, the controller can control the Hall sensor 16 to identify the magnetic poles of the strap 20 and the air pump 141 in the watch body 10 to inflate the strap 20 to identify the strap 20 simultaneously. It can be understood that step S330 and step S340 are performed simultaneously to confirm in a short time whether the strap 20 is an ordinary strap, so that the processor 13 can quickly determine the type of strap 20 in a short time based on the results obtained by the way the Hall sensor 16 and the magnetic poles cooperate and the way the strap 20 is inflated.

[0174] S350: Compare the type of the watchband 20 with the wrist circumference data of the user, and send the comparison result to the user interface.

[0175] Specifically, Fig.23 , when step S340 obtains that the strap 20 is a common strap, as Fig.29 , it is concluded that the strap 20 with the airbag is not installed, and a user interface for recommending the strap 20 appears. The user interface displays "Based on the wrist circumference, the recommended strap for you is a short airbag strap (or a long airbag strap). Please install the strap according to the illustration and then measure again." and a schematic diagram of the installation of the strap 20 is displayed.

[0176] When the step S330 and the step S340 determine that the strap 20 is a long airbag strap, the long airbag strap is compared with the wrist circumference data to determine whether the strap 20 corresponding to the wrist circumference data is a long airbag strap. Fig.30 If the wristband 20 corresponding to the wrist circumference data is a long airbag strap, the user interface displays "Based on the wrist circumference, the recommended strap for you is a long airbag strap. It is detected that you have installed the corresponding strap and can start measuring blood pressure". If the user wants to measure blood pressure, click "Next" to start blood pressure measurement. Fig.31 If the wristband 20 corresponding to the wrist circumference data is not a long airbag strap, the user interface displays "Based on the wrist circumference, the recommended strap for you is a short airbag strap. It is detected that the currently installed strap does not match the recommended strap. Please monitor the wrist circumference settings or change the strap before measuring again." The user can click "Previous" or "Got it" as needed.

[0177] When the strap 20 is a short airbag strap as determined in step S330 and step S340, the short airbag strap is compared with the wrist circumference data to determine whether the strap 20 corresponding to the wrist circumference data is a short airbag strap. If the strap 20 corresponding to the wrist circumference data is a short airbag strap, the user interface displays "Based on the wrist circumference, the short airbag strap is recommended for you. It is detected that you have installed the corresponding strap, and you can start measuring blood pressure." If the user wants to measure blood pressure, click "Next" to start blood pressure measurement. If the strap 20 corresponding to the wrist circumference data is not a short airbag strap, the user interface displays "Based on the wrist circumference, the long airbag strap is recommended for you. It is detected that the currently installed strap does not match the recommended strap. Please monitor the wrist circumference settings or change the strap before measuring." The user can click "Previous" or "Got it" as needed.

[0178] This embodiment identifies the type of the strap 20 installed on the watch body 10, compares the identification structure with the user's wrist circumference, and sends the comparison result to the user interface. The user can know whether he is wearing the wrong strap according to the identification result, and replace the strap 20 or perform subsequent operations under the prompt, so as to avoid the problem of blood pressure accuracy being reduced due to the user using the wrong strap. And if the user receives the watch body 10 of the electronic device 100 without the strap 20 installed, the strap 20 can be installed on the watch body 10 or the strap 20 can be checked to see if it is loose, so as to avoid the user washing hands and taking a bath when the strap 20 is loose, causing water damage to the device.

[0179] It is understandable that the electronic device 100 can support the storage of wrist circumference data of multiple users. When the electronic device 100 stores only the wrist circumference data of one user, the wrist circumference data of the user is directly called for comparison in step 350. When the electronic device 100 stores the wrist circumference data of multiple users, during the identification process of the watchband 20, the user can select his or her own wrist circumference data for comparison.

[0180] Of course, in other embodiments, the electronic device 100 can also identify the type of the strap 20 without using the Hall sensor 16 and the magnet 54. For example, the type of the strap 20 can be identified by inflating the strap 20. Specifically, after receiving the strap 20 identification instruction, the processor 13 controls the air pump 141 to inflate the strap 20, and the pressure sensor 142 obtains the air pressure change value to obtain the slope of the pressurization curve of the strap 20 in the inflated state. It can be understood that the airbags of the long airbag strap and the short airbag strap are different in length, and the ordinary strap has no airbag, so the slopes of the pressurization curves of the three are different, and the slopes of the pressurization curves of the three can be stored in the processor 13 in advance. By comparing the obtained pressurization curve slope with the pre-stored pressurization curve slope, it is determined whether the strap 20 is a long airbag strap, a short airbag strap or an ordinary strap.

[0181] The above are only some embodiments and implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A watch strap assembly, characterized in that: The strap assembly includes a first strap and a second strap; The first watchband includes a first airbag and a first magnet, wherein a first magnetic pole of the first magnet is disposed close to a mounting portion of the first watchband, and the mounting portion of the first watchband is used for the first watchband to be detachably connected to a watch body; The second watchband includes a second airbag and a second magnet, the second magnetic pole of the second magnet is arranged close to the mounting portion of the second watchband, and the mounting portion of the second watchband is used for the second watchband to be detachably connected to the watch body; The length of the first airbag is different from the length of the second airbag; The first magnetic pole and the second magnetic pole are different, so that the Hall sensor on the watch body can identify that the first watch strap is installed on the watch body, or identify that the second watch strap is installed on the watch body by detecting the first magnetism or the second magnetic pole.

2. The strap assembly according to claim 1, characterized in that: The first watchband is suitable for users with a wrist circumference ranging from 130mm to 160mm; The second watchband is suitable for users with wrist circumferences ranging from 161 mm to 230 mm.

3. The strap assembly according to claim 1 or 2, characterized in that: The first magnetic pole is an S pole, and the second magnetic pole is an N pole.

4. The strap assembly according to claim 1 or 2, characterized in that: The first magnetic pole is an N pole, and the second magnetic pole is an S pole.

5. The watch strap assembly according to any one of claims 1 to 4, characterized in that: The first magnet is arranged on the first airbag close to the watch body.

6. The watch strap assembly according to any one of claims 1 to 5, characterized in that: The second magnet is arranged on the second airbag close to the watch body.

7. The strap assembly according to any one of claims 1 to 5, characterized in that: The second magnet is arranged on the cover plate of the second watch strap, and the cover plate is used to be connected to the watch body.

8. The strap assembly according to any one of claims 1 to 7, characterized in that: The second watch strap includes a first strap body and a second strap body, wherein the first strap body and the second strap body are respectively connected to two sides of the watch body, and the second airbag is arranged inside the first strap body.

9. The strap assembly according to any one of claims 1 to 7, characterized in that: The second watch strap includes a first strap body and a second strap body, wherein the first strap body and the second strap body are respectively connected to two sides of the watch body, and the second airbag is arranged inside the first strap body and the watch body.

10. The strap assembly according to any one of claims 1 to 7, characterized in that: The second strap includes a first strap body and a second strap body, wherein the first strap body and the second strap body are respectively connected to two sides of the watch body, and the second airbag is arranged inside the first strap body, the watch body and the second strap body.

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