Patent Publication Number: US-2022216659-A1

Title: Wearable device and control method of wearable device

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to Chinese Patent Application No. 202110001253.0 filed on Jan. 4, 2021, the disclosure of which is hereby incorporated by reference in its entirety. 
    
    
     BACKGROUND 
     With the popularization of electronic devices and people&#39;s yearning for intelligent life, wearable devices have been more and more widely used. Wearable devices are portable and beautiful, and gradually integrate functions such as watches, phones, payment, heart rate, sports, etc., and are deeply favored by people. 
     SUMMARY 
     The present disclosure generally relates to the technical field of electronic devices, and more specifically to a wearable device and a control method of the wearable device. 
     According to a first aspect of the present disclosure, there is provided a wearable device, including: a wristband, comprising a first section of wristband with a first interface and a second section of wristband with a second interface; and a main body, on the wristband and electrically connected to the first interface and the second interface, wherein, when the first interface is connected to a power supply and the second interface is not connected to a first terminal device, the main body of the bracelet is charged through the power supply. 
     In some embodiments, the power supply includes a power adapter, and when the first interface is connected to the power adapter and the second interface is connected to a second terminal device, the second terminal device is charged via the wearable device through the power adapter. 
     In some embodiments, when the first interface is connected to a third terminal device and the second interface is connected to a fourth terminal device, the third terminal device and the fourth terminal device perform data transmission through the wearable device. 
     In some embodiments, the wearable device further includes a conductive portion on the wristband, and the first interface is connected to the charging stand of the main body through the conductive portion. 
     In some embodiments, the wearable device further includes: a first charging line, which is in the first section of wristband, with one end of the first charging line being connected to a power supply pin of the first interface, and the other end being connected to the conductive portion; and a second charging line, in the second section of wristband, with one end of the second charging line being connected to the conductive portion, and the other end being connected to the second interface. 
     In some embodiments, the wearable device further includes: a transmission line, located in the wristband, with one end of the transmission line being connected to a data transmission pin of the first interface, and the other end being connected to the second interface. 
     In some embodiments, the first interface includes a first pin, a second pin, a third pin, and a fourth pin; the first pin is used to connect to a power supply; the second pin and the third pin are used for data transmission; and the fourth pin is used for grounding; wherein, one end of the first charging line is electrically connected to the first pin and the fourth pin, respectively; and one end of the transmission line is electrically connected to the second pin and the third pin, respectively. 
     In some embodiments, the first interface is a Type-A interface; and the second interface is a Type-C interface. 
     In some embodiments, the first interface and the second interface are both universal serial bus interfaces. 
     In some embodiments, the first section of wristband has a first protective sleeve; the second section of wristband has a second protective sleeve; and when the first section of wristband and the second section of wristband are fixedly connected, the second protective sleeve is sleeved with the first interface, and the first protective sleeve is sleeved with the second interface. 
     In some embodiments, a plurality of fixing apertures are provided in one of the first section of wristband and the second section of wristband, and a buckle is provided in the other of the first section of wristband and the second section of wristband, and the buckle can buckle the fixing apertures to fixedly connect the first section of wristband and the second section of wristband. 
     According to a second aspect of the present disclosure, there is provided a control method of a wearable device, applied to the wearable device of the embodiment of the first aspect aforementioned, the control method comprising: obtaining connection information of the first interface and connection information of the second interface; determining a working mode of the wearable device according to the connection information of the first interface and the second interface, wherein the working mode includes at least one of the following: charging the main body through the power supply; charging a second terminal device via the wearable device through a power adapter; and performing, by a third terminal device and a fourth terminal device, data transmission through the wearable device. 
     In some embodiments, obtaining connection information of the first interface and connection information of the second interface comprises: detecting a micro-current of the first interface and a micro-current of the second interface; determining the connection information of the first interface according to the micro-current of the first interface; and determining the connection information of the second interface according to the micro-current of the second interface. 
     In some embodiments, determining the working mode of the wearable device according to the connection information of the first interface and the second interface comprises: when the connection information of the first interface is that the first interface is connected to a power supply, and the connection information of the second interface is that the second interface is not connected to a first terminal device, determining that the working mode is charging the main body through the power supply. 
     In some embodiments, determining the working mode of the wearable device according to the connection information of the first interface and the connection information of the second interface comprises: when the connection information of the first interface is that the first interface is connected to the first terminal device or a power adapter, and the second interface is not connected to the first terminal device, determining that the working mode is that the main body of the bracelet is charged through the first terminal device or the power adapter; and when the connection information of the first interface is that the first interface is connected to a power adapter, and the second interface is connected to the second terminal device, determining that the working mode is that the second terminal device is charged via the wearable device through the power adapter; and when the first interface is connected to the third terminal device and the second interface is connected to the forth terminal device, the third terminal device and the forth terminal device perform data transmission through the wearable device. 
     It is to be understood that both the aforementioned general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments consistent with the disclosure and, together with the description, serve to explain the principles of the disclosure. 
         FIG. 1  is a schematic diagram showing the structure of the wearable device according to some embodiments of the present disclosure. 
         FIG. 2  is a schematic diagram showing the structure of a wristband of the wearable device according to some embodiments of the present disclosure. 
         FIG. 3  is a schematic diagram showing the line connection of the wearable device according to some embodiments of the present disclosure. 
         FIG. 4  is an enlarged schematic diagram showing a part of the circuit in  FIG. 3  according to some embodiments of the present disclosure. 
         FIG. 5  is a schematic diagram showing the structure of the wearable device when being worn according to some embodiments of the present disclosure. 
         FIG. 6  is a flowchart of a control method of a wearable device according to some embodiments of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Description will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments set forth in the following description of exemplary embodiments do not represent all embodiments consistent with the disclosure. Instead, they are merely examples of apparatuses and methods consistent with aspects related to the disclosure as recited in the appended claims. 
     At present, most wearable devices have the specificity of charging, and when charging, they use their own charging stand and a matching charging base for charging. Specifically, when the wearable device needs to be charged, the wristband of the bracelet is manually removed, and then the main body of the bracelet is placed on a dedicated charging base for charging, which has poor portability and user experience. 
       FIG. 1  is a schematic diagram showing the structure of the wearable device according to some embodiments of the present disclosure.  FIG. 2  is a schematic diagram showing the structure of a wristband of the wearable device according to some embodiments of the present disclosure. 
     The wearable device of the present disclosure may be an electronic product such as a smart bracelet or a smart watch. In the following description, a smart bracelet is taken as an example, but it is not limited thereto. 
     As shown in  FIGS. 1 and 2 , the wearable device  100  of the embodiments of the present disclosure includes a wristband  10  and a main body. 
     The wristband  10  includes a first section of wristband  11  and a second section of wristband  12 . The first section of wristband  11  and the second section of wristband  12  can be used to wear the wearable device  100  on the user&#39;s wrist. The first section of wristband  11  is provided with a first interface  13  for connecting to a power supply. The power supply may be a power adapter that matches the wearable device, and the wearable device is charged through the power adapter. The power supply may also be the first terminal device, and the wearable device is charged through the charging interface of the first terminal device. The second section of wristband  12  is provided with a second interface  14  for connecting with the first terminal device. The type of the first interface  13  may be matched with the socket type of the power adapter or the socket type of the first terminal device, such that the first interface  13  can be connected to the power adapter or the first terminal device for electrical conduction. The type of the second interface  14  can match the socket type of the first terminal device, such that the second interface  14  is connected to the first terminal device for electrical conduction. 
     The first terminal device may be an electronic device with a connection interface such as a mobile phone, a tablet computer, a notebook computer, a desktop computer, a personal digital assistant (PDA), etc. 
     The first section of wristband  11  and the second section of wristband  12  may be long strips, and the length of the first section of wristband  11  may be longer than or equal to the length of the second section of wristband  12 , or the length of the second section of wristband  12  is longer than or equal to the length of the first section of wristband  11 . In addition, the first section of wristband  11  and the second section of wristband  12  can be made of flexible materials such as leather, polyvinyl chloride (PVC), rubber, thermoplastic polyurethane (TPU), or silicone. 
     The main body may be a main body  20  of the bracelet or a main body of a watch. Taking the main body  20  of the bracelet as an example, the main body  20  of the bracelet is provided on the wristband  10  and is electrically connected to the first interface  13  and the second interface  14 . The outer shape of the main body  20  of the bracelet may be an oval shape, a rectangular shape, a square shape, a circular shape or other shapes. The main body  20  of the bracelet may include a housing, a display panel fixed on the housing, and a chip, a circuit board, a rechargeable battery, etc., provided in the housing. The display panel, chip, and rechargeable battery are all electrically connected to the circuit board. 
     The display panel is used to display time, date, or other information. The chip is used to detect and identify the connection state of the first interface  13  and the second interface  14  and control the connection mode of the wearable device  100 . For example, the chip can detect the current flowing into the first interface  13 , and when the first interface  13  is connected to other devices, it will receive the micro-current, but devices are not connected, it will not receive the micro-current. Moreover, the micro-current chip determines what type of device the connected device is based on the predetermined protocol, for example, a terminal device or a power adapter, in order to determine the connection mode of the wearable device. 
     The rechargeable battery is used to supply power to the main body  20  of the bracelet and can be electrically connected to the first interface  13  through a charging stand exposed outside the main body  20  of the bracelet. The rechargeable battery can be a small battery such as a lithium-ion battery, a lithium polymer battery, a nickel-cadmium battery, a nickel-metal hydride battery, a nickel-zinc battery and other small batteries. 
     Herein, when the first interface  13  is connected to the power supply and the second interface  14  is not connected to the first terminal device, the main body is charged through the power supply. 
     In an example, the power supply may be a power adapter, and when the first interface  13  is connected to the power adapter and the second interface  14  is not connected to the first terminal device, the main body is charged through the power adapter. 
     In another example, the power supply may be a fifth terminal device, and when the first interface  13  is connected to the fifth terminal device and the second interface  14  is not connected to the first terminal device, the main body is charged through the fifth terminal device. 
     In other words, in the embodiments of the present disclosure, when the second interface  14  is not connected to the terminal device, the main body of the wearable device  100  can be charged through the power adapter or through the fifth terminal device. 
     Herein, the first terminal device and the fifth terminal device may be collectively referred to as terminal devices. In addition, the types of the first terminal device and the fifth terminal device can be the same or different. 
     In the present disclosure, by providing two interfaces on the wristband of the wearable device  100 , in a state in which one interface is connected to the power supply and the other interface is not connected to the terminal device, the wearable device  100  charges itself through the interface connected to the power supply without using a dedicated charging base, making charging is more convenient. 
     In some embodiments, the power supply includes a power adapter, and when the first interface  13  is connected to the power adapter and the second interface  14  is connected to the second terminal device, the second terminal device is charged through the power adapter via the wearable device  100 . 
     For the wearable device  100  of the embodiments of the present disclosure, the power adapter charges the terminal device through the wearable device  100 , that is, the wearable device  100  is used as a power charging line to charge the terminal device to be charged. In the case that the user forgets, loses the charging line, or the charging line is damaged, the wearable device  100  can serve as the charging line of the power adapter to charge the terminal device to be charged for emergency use, which has great convenience. 
     In another embodiment, when the first interface  13  is connected to the third terminal device and the second interface  14  is connected to the fourth terminal device, the third terminal device and the fourth terminal device perform data transmission through the wearable device  100 . 
     The two interfaces are connected respectively to one terminal device, and the wearable device  100  serves as the data line of the two terminal devices to realize the data transmission function between the two terminal devices such that when the user forgets or loses the data line, the wearable device  100  can be used as an emergency, which greatly improves the convenience. 
     When the wearable device  100  of the present disclosure is in use, if the rechargeable battery inside the wearable device  100  is insufficient and needs to be charged, the wristband  10  is removed from the wrist, and then the first interface  13  on the first section of wristband  11  is connected to the socket of the power adapter, or the first interface  13  is connected to the socket of the fifth terminal device, and, the second interface  14  on the second section of wristband  12  is not connected to the first terminal device. At this time, the chip in the main body  20  of the bracelet determines that the wearable device  100  is in a self-charging mode, and the first interface  13  is connected with the rechargeable battery, thereby charging the wearable device  100  through the power adapter or the fifth terminal device. Compared with the traditional method in which the main body  20  of the bracelet is disassembled and then placed in a matching charging dock for charging, the disclosed wearable device  100  can charge the wearable device without disassembling the main body when charging itself, thus improving the convenience. In addition, when the first interface  13  is connected to the fifth terminal device, and the second interface  14  is not connected to the first terminal device, the wearable device  100  can also perform data transmission with the connected fifth terminal device, for example, the data on the fifth terminal device can be transmitted to the wearable device  100  for storage, or the data on the wearable device  100  can be transmitted to the fifth terminal device for data synchronization. 
     In addition, when the terminal device to be charged (the second terminal device) needs to be charged, the first interface  13  on the first section of wristband  11  is plugged into the power adapter, and the second interface  14  on the second section of wristband  12  is plugged into the terminal device to be charged. At this time, the chip in the main body  20  determines that the wearable device  100  is in a terminal device charging mode, and the first interface  13  is electrically conducted with the second interface  14 , such that the terminal device to be charged is charged through the power adapter via the wearable device  100 . The wearable device  100  is used as the power charging line to charge the terminal device to be charged. When the user forgets, loses or damages the charging line, the wearable device  100  can serve as the charging line of the power adapter to charge the terminal device to be charged for emergency use, which has great convenience. 
     Furthermore, when two terminal devices (the third terminal device and the fourth terminal device) need to perform data transmission, the first interface  13  on the first section of wristband  11  is plugged into the socket of one terminal device (for example, the third terminal device), and the second interface  14  on the second section of wristband  12  is plugged into the socket of the other terminal device (for example, the fourth terminal device), the chip in the main body  20  of the mobile phone determines that the wearable device  100  is in a data transmission mode between the terminal device and the terminal device, and the first interface  13  is electrically conducted with the second interface  14 , such that the two terminal devices perform data transmission through the wearable device  100 . By using the wearable device  100  as a data line, the data transmission function between two terminal devices is realized, and if the user forgets or loses the data line, the wearable device  100  can be used in emergency, which greatly improves the convenience. 
     The above-mentioned first terminal device, second terminal device, third terminal device, fourth terminal device, and fifth terminal device may be collectively referred to as terminal devices. Herein, the types of the terminal devices may be the same or different. 
     To sum up, the wearable device  100  of the present disclosure is provided with interfaces on the two sections of the wristband, which can realize various modes such as self-charging of the wearable device  100 , charging of the terminal device using the wearable device  100  as a charging line, and data transmission between the two terminal devices using the wearable device  100  as a data line without increasing the volume of the wristband body  20 , to achieve a variety of functions, which greatly improves the convenience of users and enhances the user experience. 
     In some embodiments, the wearable device  100  further includes a conductive portion provided on the wristband, and the first interface is connected to the charging stand of the main body through the conductive portion. For example, the wristband  10  may also include a mounting base  15 , and the first section of wristband  11  and the second section of wristband  12  are respectively connected to opposite ends of the mounting base  15 . The main body  20  of the bracelet is detachably provided on the mounting base  15 , and a conductive portion, such as a metal sheet  19 , is provided in the mounting base  15 , which is in contact with the charging stand of the main body  20  of the bracelet and is electrically connected to the first interface  13 . Wherein, the charging stand is electrically connected with the rechargeable battery in the main body  20  of the bracelet, and the connection and disconnection between the charging stand and the rechargeable battery can be controlled through the chip. The metal sheet  19  can be embedded in the mounting base  15 , and part of the metal sheet  19  is exposed outside the mounting base, such that the exposed part is in contact with the charging stand on the main body  20  of the bracelet for electrical connection. The metal sheet  19  may be a conductive material such as a copper sheet, an aluminum sheet, a silver sheet, a gold sheet, etc. 
     The metal sheet  19  is in contact with the charging stand of the main body  20  of the bracelet, such that the main body  20  of the bracelet can be easily detached and installed from the mounting base  15 , which is convenient for users or workers to repair and replace the main body  20  of the bracelet. In an example, the first section of wristband  11  may be formed by extending from one end of the mounting base  15 , and the second section of wristband  12  may be formed by extending from the other end of the mounting base  15 , that is, the first section of wristband  11 , the second section of wristband  12  and the mounting base  15  may be integrally formed. Wherein, the first interface  13  may be provided at the end of the first section of wristband  11 . The second interface  14  may be provided at the end of the second section of wristband  12 . However, it is not limited thereto, the first section of wristband  11  and the second section of wristband  12  may be detachably connected to opposite ends of the mounting base  15 , respectively. 
     The mounting base  15  may have a groove and a frame provided around the groove, and a buckle may be provided on the inner side wall of the frame. A slot corresponding to the buckle may be provided on the outer side wall of the casing of the main body  20  of the bracelet. The main body  20  of the bracelet is fixed in the groove of the mounting base  15  through the buckle and the slot. The shape of the groove can be an oval shape, a rectangle shape, a square shape, a circle shape or other shapes that match the shape of the main body of the bracelet. 
     In another example, the wearable device  100  may not include the mounting base  15 , and the main body  20  of the bracelet may be integrally formed with the wristband. 
       FIG. 3  is a schematic diagram showing the line connection of the wearable device according to some embodiments of the present disclosure.  FIG. 4  is an enlarged schematic diagram showing a part of the circuit in  FIG. 3  according to some embodiments of the present disclosure. 
     In some embodiments, as shown in  FIGS. 3 and 4 , the wearable device  100  further includes a first charging line  17  and a second charging line  18 . The first charging line  17  is provided in the first section of wristband  11 , and one end of the first charging line  17  is connected to the power supply pin of the first interface  13 , and the other end is connected to a conductive portion, such as a metal sheet  19 , so as to form a charging loop of the wearable device  100 ; and the second charging line  18  is provided in the second section of wristband  12 , and one end of the second charging line  18  is connected to the metal sheet  19 , and the other end is connected to the second interface  14 , thereby forming a charging loop of the terminal device. 
     In a case that the wearable device  100  needs to be charged, the wristband  10  is removed from the wrist, and then the first interface  13  on the first section of wristband  11  is connected to the socket of the power adapter or the socket of the terminal device, and the second interface  14  on the second section of wristband  12  is not connected to the terminal device. At this time, the chip in the main body  20  of the bracelet controls the charging stand in contact with the metal sheet  19  so it is electrically conducted with the rechargeable battery, forming a charging loop to charge the rechargeable battery in the main body  20  of the bracelet. 
     In a case that the terminal device to be charged needs to be charged, the first interface  13  on the first section of wristband  11  is connected to the socket of the power adapter, and the second interface  14  on the second section of wristband  12  is connected to the socket of the terminal device to be charged. At this time, the first charging line  17  and the second charging line  18  are connected through the metal sheet  19 , such that the first interface  13  is conducted with the second interface  14 . The chip in the main body  20  of the mobile phone controls the charging stand in contact with the metal sheet  19  to be disconnected from the rechargeable battery, that is, the charging loop of the wearable device  100  itself is disconnected, the wearable device  100  enters the terminal device charging mode, and the terminal device to be charged is charged through the power adapter via the wearable device  100 . 
     In some embodiments, the wearable device  100  further includes a transmission line  16  provided in the wristband  10 , and one end of the transmission line  16  is connected to the data transmission pin of the first interface  13 , and the other end is connected to the second interface  14 . One end to the other end of the transmission line  16  can be successively embedded in the first section of wristband  11 , the mounting base  15  and the second section of wristband  12  to hide the transmission line  16  in the wristband  10 . 
     When two terminal devices need to perform data transmission, the first interface  13  on the first section of wristband  11  is connected to the socket of one terminal device, the second interface  14  on the second section of wristband  12  is connected to the socket of the other terminal device, and the chip in the main body  20  of the mobile phone determines that the wearable device  100  is in a data transmission mode between the terminal device and the terminal device. At this time, the chip disconnects the communication loop between the first interface  13  and the rechargeable battery, such that the two terminal devices perform data transmission through the transmission line  16  of the wearable device  100 . 
     In some embodiments, the first interface  13  includes a first pin  131 , a second pin  132 , a third pin  133 , and a fourth pin  134 . The first pin  131  is used to connect to a power supply; the second pin  132  and the third pin  133  are used for data transmission; and the fourth pin  134  is used for grounding, wherein, one end of the first charging line  17  is electrically connected to the first pin  131  and the fourth pin  134  respectively; and one end of the transmission line  16  is electrically connected to the second pin  132  and the third pin  133 , respectively. Wherein, there may be two first charging lines  17 , where one charging line may be welded to the first pin  131  by welding, and the other charging line may be welded to the fourth pin  134  by welding. There may be two transmission lines  16 , where one transmission line may be welded to the second pin  132  by welding, and the other transmission line is welded to the third pin  133 . 
     In some embodiments, the first interface  13  and the second interface  14  are both universal serial bus (USB) interfaces to accommodate the connection of most power adapters and terminal devices. Herein, Mini USB, Micro USB, Type-A interface, and Type-C interface are included. 
     In some embodiments, a plurality of fixing apertures  111  is provided on the first section of wristband  11 , and a watch buckle  121  is provided on the second section of wristband  12 . The watch buckle  121  can buckle any one of the fixing apertures  111 , such that the first section of wristband  11  and the second section of wristband  12  are fixedly connected, even if the first section of wristband  11  and the second section of wristband  12  are tied together. A plurality of fixing apertures  111  can be provided at intervals along the length direction of the first section of wristband  11 , and the fixing apertures  111  provided at intervals can adjust the wear length by inserting the watch buckle  121  into different fixing apertures  111  according to the thickness of the wrist of different users. The shape of the fixing aperture  111  may be a circle shape, a bar shape, a triangle shape or other shapes, and correspondingly, the shape of the watch buckle  121  may also be a circle shape, a bar shape, a triangle shape or other shapes. In another example, a plurality of fixing apertures may be provided on the second section of wristband  12 , and a watch buckle can be correspondingly provided on the first section of wristband  11 . 
     In addition, the first section of wristband  11  can also be provided with a perforation extending in its width direction, where the perforation is provided adjacent to the fixing aperture  111 , and the second section of wristband  12  can pass through the perforation, such that a part of the first section of wristband  11  overlaps a part of the second section of wristband  12 . 
     In some embodiments, the first section of wristband  11  is provided with a first protective sleeve  40 , the second section of wristband  12  is provided with the second protective sleeve  30 , and when the first section of wristband  11  and the second section of wristband  12  are fixedly connected, the second protective sleeve  30  can be sleeved with the first interface  13 , and the first protective sleeve  40  can be sleeved with the second interface  14 . The material of the first protective sleeve  40  and the second protective sleeve  30  may be the same as that of the first section of wristband  11  and the second section of wristband  12 , for example, they may be made of flexible materials such as leather, polyvinyl chloride (PVC), rubber, thermoplastic polyurethane (TPU), silicone, etc. 
     Through the arrangement of the first protective sleeve  40  and the second protective sleeve  30 , when the wearable device is worn, the first interface  13  and the second interface  14  can be hidden, which improves the overall aesthetics of the wearable device  100 , and can also prevent the first interface  13  and the second interface  14  from being exposed to the air and being corroded. In addition, the first protective sleeve  40  and the second protective sleeve  30  are respectively sleeved with the first interface  13  and the second interface  14 , and can also be used to fix the extra part of the first section of wristband  11  and the second section of wristband  12  which are overlapped after wearing the wearable device  100 . 
     In some embodiments, the first protective sleeve  40  can slide along the length direction of the first section of wristband  11 , and the second protective sleeve  30  can slide along the length direction of the second section of wristband  12 . For example, the first protective sleeve  40  is provided with a first collar, the first collar is sleeved on the first section of wristband  11 , and the second protective sleeve  30  is provided with a second collar, and the second collar is sleeved on the second section of wristband  12 . In this way, when the wearable device is worn to adjust the wearing length of the wristband, the first protective sleeve  40  and the second protective sleeve  30  can be adjusted according to the different positions of the first interface  13  and the second interface  14  when the wearable device  100  is worn, so as to better fit the first interface  13  and the second interface  14 . 
       FIG. 5  is a schematic diagram showing the structure of the wearable device when being worn according to some embodiments of the present disclosure. As shown in  FIG. 5 , when the user needs to wear the wearable device  100  on the wrist, firstly, the mounting base  15  of the wristband  10  is in contact with the wrist, next, the second section of wristband  12  passes through the perforation  112  on the first section of wristband  11 , such that a part of the first section of wristband  11  and a part of the second section of wristband  12  overlap and stick together to enable the first section of wristband  11  and the second section of wristband  12  to wrap around the wrist, further, the length of the overlapping part of the first section of wristband  11  and the second section of wristband  12  is adjusted appropriately to adjust the tightness, subsequently, the watch buckle  121  is buckled into the corresponding fixing aperture  111 , to enable the first section of wristband  11  and the second section of wristband  12  to be fixedly connected, and finally, the second protective sleeve  30  is adjusted according to the position of the first interface  13  to sleeve the first interface  13 , and the first protective sleeve  40  is adjusted according to the position of the second interface  14  to sleeve the second interface  14 , such that the first interface  13  and the second interface  14  are hidden, and at the same time, the extra part of the first section of wristband  11  and the second section of wristband  12  which are overlapped are fixed. 
       FIG. 6  is a flowchart of a control method of a wearable device according to some embodiments of the present disclosure. 
     According to another aspect of the embodiments of the present disclosure, as shown in  FIG. 6 , there is provided a control method  200  of a wearable device, which is applied to the wearable device  100  implemented in the first aspect described above, and the control method  200  includes steps S 11  and S 12 . 
     In step S 11 , the connection information of the first interface  13  and the connection information of the second interface  14  are obtained. 
     The connection information may include the connection state of the first interface  13  and the connection state of the second interface  14 . During connection, the connection state of the first interface may be that the first interface is connected to a power adapter or a terminal device. The connection state of the second interface  14  may be that the second interface  14  is connected to a terminal device. 
     In an example, the step S 11  includes: detecting the micro-current of the first interface  13  and the micro-current of the second interface  14 ; determining the connection information of the first interface  13  according to the micro-current of the first interface  13 ; and determining the connection information of the second interface according to the micro-current of the second interface  14 . 
     A chip can be provided inside the wearable device  100 , and detects the current flowing into the first interface  13 . When the first interface  13  is connected to other devices, it will receive a micro-current, but when the first interface  13  is not connected to other devices, it will not receive the micro-current, and the chip determines what type of device the connected device is, for example, determines that the connected device is a terminal device or a power adapter, based on the predetermined protocol. If the chip detects that the first interface  13  is connected to the terminal device or the power adapter, the chip in the wearable device  100  detects the micro-current of the second interface to determine whether the second interface  14  is connected to the other terminal device. 
     In step S 12 , the working mode of the wearable device  100  is determined according to the connection information of the first interface  13  and the connection information of the second interface  14 , wherein the working mode may include at least one of the following: charging the main body through the power supply; charging the second terminal device via the wearable device through a power adapter; and performing data transmission through the wearable device, by a third terminal device and a fourth terminal device. 
     According to the different connection states of the wearable device  100 , different connection modes are adopted to realize functions such as charging or data transmission. The wearable device  100  can be used to conveniently realize various functions without manual setting by the user. 
     The connection mode may be that the first interface  13  is electrically conducted with the rechargeable battery inside the main body  20  of the bracelet, such that when the first interface  13  is connected to a power adapter or a terminal device, the wearable device is charged. 
     The connection mode may also be that the first interface  13  is electrically conducted with the second interface  14 , and the first interface  13  is disconnected from the rechargeable battery inside the main body  20  of the bracelet, such that when the chip in the wearable device detects that the first interface  13  is connected to the power adapter, and detects that the second interface  14  is connected to a terminal device, the wearable device is controlled to enter the terminal device charging mode, and the terminal device is charged via the wearable device  100  through the power adapter. 
     The connection mode may also be that the first interface  13  is electrically conducted with the second interface  14 , such that when the smart chip detects that the first interface  13  and the second interface  14  are respectively connected to one terminal device, the two terminal devices perform data transmission through the wearable device. 
     Through the above method, the wearable device of the present disclosure can have multiple functions such as self-charging, as a charging line to realize the charging of the terminal device, and as a data line to realize data transmission between two terminal devices, which greatly improves the convenience of users and enhances the user experience. In some embodiments, the step S 12  includes: when the connection information of the first interface  13  is that the first interface  13  is connected to a power supply, and the second interface  14  is not connected to the first terminal device, the main body  20  of the bracelet is charged through the power supply. Herein, the power supply may be a power adapter or a fifth terminal device. 
     In an example, the chip in the wearable device  100  can be used to detect whether the first interface  13  is connected to the terminal device, and whether the second interface  14  is connected to the terminal device. If it is detected that the first interface  11  is connected to a terminal device (the fifth terminal device), and the second interface  14  is not connected to the other terminal device (the first terminal device), the chip in the main body of the bracelet performs a control such that the first interface  13  is electrically conducted with the rechargeable battery inside the main body of the bracelet, such that the wearable device  100  is charged through the terminal device (the fifth terminal device) connected with the first interface. 
     In addition, in this case, the wearable device  100  can also perform data transmission with the terminal device, for example, the data from the terminal device is stored through the wearable device, or the data from the wearable device is received by the terminal device. 
     In another example, when the wearable device detects that the first interface  13  is connected to the power adapter and the second interface  14  is not connected to the other terminal device, at this time, the chip in the main body of the bracelet performs a control such that the first interface  13  is electrically conducted with the rechargeable battery inside the main body of the bracelet, thereby the wearable device  100  is charged through the power adapter. 
     Compared with the traditional method in which the main body of the bracelet is disassembled and then placed in a matching charging dock for charging, the present disclosure does not need to disassemble the main body of the bracelet when the wearable device needs to be charged through the above method, and the wearable device can be charged more conveniently through the first interface  13  on the wristband of the wearable device to improve the convenience. 
     In some embodiments, step S 12  may further include: when the connection information of the first interface  13  is that the first interface  13  is connected to the power adapter, and the second interface  14  is connected to the second terminal device, determining that the working mode is: enabling the second terminal device to be charged via the wearable device through the power adapter. 
     When the wearable device detects that the first interface  13  is connected to the power adapter and the second interface  14  is connected to the terminal device, at this time, the chip in the main body of the bracelet controls the first interface to be electrically conducted with the second interface, at the same time, the electrical connection path between the first interface and the rechargeable battery inside the main body of the bracelet is disconnected, such that the terminal device (second terminal device) connected to the second interface  14  is charged via the wearable device through the power adapter. 
     The wearable device is used as the power charging line to realize the function of charging the terminal device to be charged, when the user forgets, loses or damages the charging line, the wearable device can serve as the charging line for emergency use, which has great convenience. 
     In another embodiment, the step S 12  may further include: when the connection information of the first interface is that the first interface  13  is connected to the third terminal device, and the second interface  14  is connected to the fourth terminal device, determining that the working mode is: performing data transmission by the third terminal device and the fourth terminal device through the wearable device. 
     When the wearable device detects that the first interface  13  is connected to one terminal device (the third terminal device), and the second interface  14  is connected to the other terminal device (the fourth terminal device), at this time, the chip in the main body of the bracelet controls the first interface to be electrically conducted with the second interface, such that the terminal device connected to the first interface and the terminal device connected to the second interface perform data transmission through the wearable device. 
     The wearable device serves as the data line to realize the data transmission function of the two terminal devices, which greatly improves the convenience. 
     In view of the above, through the control method of the wearable device of the present disclosure, the wearable device has multiple functions such as self-charging, as a charging line to charge the terminal device, and as a data line to charge the two terminal devices, which greatly improves the convenience of users and enhances the user experience. 
     Various embodiments of the present disclosure can have one or more of the following advantages. 
     By providing two interfaces on the device on the wristband of the wearable device, in a state in which one interface is connected to the power source and the other interface is not connected to the terminal device, the wearable device itself is charged through the interface connected to the power source without using a dedicated charging base, and charging is more convenient. 
     It can be understood that the “multiple” in the disclosure means two or more, and other quantifiers are similar. “And/or” describes the relationship of the related objects, indicating that there may be three relationships, for example, A and/or B may indicate three cases: A exists alone, A and B exist simultaneously, and B exists alone. The character “/” generally indicates that the relationship between the contextually relevant objects is a “or” relationship. The singular forms “a,” “an,” “said,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. 
     It can be further understood that although the terms such as “first” and “second” and the like are used to describe various information, such information should not be limited by these terms. The terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or importance. In fact, the expressions such as “first” and “second” and the like can be used interchangeably. For instance, first information can also be referred to as second information without departing from the scope of the disclosure, and similarly, the second information can also be referred to as the first information. 
     It can be further understood that the orientation or positional relationship indicated by the terms “center”, “vertical”, “horizontal”, “front”, “rear”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc. is the orientation or positional relationship based on the drawings, which are only for the convenience of describing the embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. 
     The various device components, units, circuits, blocks, or portions may have modular configurations, or are composed of discrete components, but nonetheless may be referred to as “modules,” “components” or “circuits” in general. In other words, the components, units, circuits, blocks, or portions referred to herein may or may not be in modular forms, and these phrases may be interchangeably used. 
     The various device components, units, blocks, portions, or modules may be realized with hardware, software, or a combination of hardware and software. 
     In some embodiments of the present disclosure, the terms “installed,” “connected,” “coupled,” “fixed” and the like shall be understood broadly, and can be either a fixed connection or a detachable connection, or integrated, unless otherwise explicitly defined. These terms can refer to mechanical or electrical connections, or both. Such connections can be direct connections or indirect connections through an intermediate medium. These terms can also refer to the internal connections or the interactions between elements. The specific meanings of the above terms in some embodiments of the present disclosure can be understood by those of ordinary skill in the art on a case-by-case basis. 
     In the description of the present disclosure, the terms “one embodiment,” “some embodiments,” “example,” “specific example,” or “some examples,” and the like can indicate a specific feature described in connection with the embodiment or example, a structure, a material or feature included in at least one embodiment or example. In some embodiments of the present disclosure, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. 
     Moreover, the particular features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, can be combined and reorganized. 
     In some embodiments, the control and/or interface software or app can be provided in a form of a non-transitory computer-readable storage medium having instructions stored thereon is further provided. For example, the non-transitory computer-readable storage medium can be a ROM, a CD-ROM, a magnetic tape, a floppy disk, optical data storage equipment, a flash drive such as a USB drive or an SD card, and the like. 
     Implementations of the subject matter and the operations described in this disclosure can be implemented in digital electronic circuitry, or in computer software, firmware, or hardware, including the structures disclosed herein and their structural equivalents, or in combinations of one or more of them. Implementations of the subject matter described in this disclosure can be implemented as one or more computer programs, i.e., one or more portions of computer program instructions, encoded on one or more computer storage medium for execution by, or to control the operation of, data processing apparatus. 
     Alternatively, or in addition, the program instructions can be encoded on an artificially-generated propagated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal, which is generated to encode information for transmission to suitable receiver apparatus for execution by a data processing apparatus. A computer storage medium can be, or be included in, a computer-readable storage device, a computer-readable storage substrate, a random or serial access memory array or device, or a combination of one or more of them. 
     Moreover, while a computer storage medium is not a propagated signal, a computer storage medium can be a source or destination of computer program instructions encoded in an artificially-generated propagated signal. The computer storage medium can also be, or be included in, one or more separate components or media (e.g., multiple CDs, disks, drives, or other storage devices). Accordingly, the computer storage medium can be tangible. 
     The operations described in this disclosure can be implemented as operations performed by a data processing apparatus on data stored on one or more computer-readable storage devices or retracted from other sources. 
     The devices in this disclosure can include special purpose logic circuitry, e.g., an FPGA (field-programmable gate array), or an ASIC (application-specific integrated circuit). The device can also include, in addition to hardware, code that creates an execution environment for the computer program in question, e.g., code that constitutes processor firmware, a protocol stack, a database management system, an operating system, a cross-platform runtime environment, a virtual machine, or a combination of one or more of them. The devices and execution environment can realize various different computing model infrastructures, such as web services, distributed computing, and grid computing infrastructures. 
     A computer program (also known as a program, software, software application, app, script, or code) can be written in any form of programming language, including compiled or interpreted languages, declarative or procedural languages, and it can be deployed in any form, including as a stand-alone program or as a portion, component, subroutine, object, or other portion suitable for use in a computing environment. A computer program can, but need not, correspond to a file in a file system. A program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more portions, sub-programs, or portions of code). A computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network. 
     The processes and logic flows described in this disclosure can be performed by one or more programmable processors executing one or more computer programs to perform actions by operating on input data and generating output. The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA, or an ASIC. 
     Processors or processing circuits suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from a read-only memory, or a random-access memory, or both. Elements of a computer can include a processor configured to perform actions in accordance with instructions and one or more memory devices for storing instructions and data. 
     Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto-optical disks, or optical disks. However, a computer need not have such devices. Moreover, a computer can be embedded in another device, e.g., a mobile telephone, a personal digital assistant (PDA), a mobile audio or video player, a game console, a Global Positioning System (GPS) receiver, or a portable storage device (e.g., a universal serial bus (USB) flash drive), to name just a few. 
     Devices suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry. 
     To provide for interaction with a user, implementations of the subject matter described in this specification can be implemented with a computer and/or a display device, e.g., a VR/AR device, a head-mount display (HIVID) device, a head-up display (HUD) device, smart eyewear (e.g., glasses), a CRT (cathode-ray tube), LCD (liquid-crystal display), OLED (organic light emitting diode), TFT (thin-film transistor), plasma, other flexible configuration, or any other monitor for displaying information to the user and a keyboard, a pointing device, e.g., a mouse, trackball, etc., or a touch screen, touch pad, etc., by which the user can provide input to the computer. 
     Implementations of the subject matter described in this specification can be implemented in a computing system that includes a back-end component, e.g., as a data server, or that includes a middleware component, e.g., an application server, or that includes a front-end component, e.g., a client computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the subject matter described in this specification, or any combination of one or more such back-end, middleware, or front-end components. 
     The components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (“LAN”) and a wide area network (“WAN”), an inter-network (e.g., the Internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks). 
     While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any claims, but rather as descriptions of features specific to particular implementations. Certain features that are described in this specification in the context of separate implementations can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination. 
     Moreover, although features can be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination can be directed to a subcombination or variation of a subcombination. 
     Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing can be advantageous. Moreover, the separation of various system components in the implementations described above should not be understood as requiring such separation in all implementations, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. 
     As such, particular implementations of the subject matter have been described. Other implementations are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In certain implementations, multitasking or parallel processing can be utilized. 
     It is intended that the specification and embodiments be considered as examples only. Other embodiments of the disclosure will be apparent to those skilled in the art in view of the specification and drawings of the present disclosure. That is, although specific embodiments have been described above in detail, the description is merely for purposes of illustration. It should be appreciated, therefore, that many aspects described above are not intended as required or essential elements unless explicitly stated otherwise. 
     Various modifications of, and equivalent acts corresponding to, the disclosed aspects of the example embodiments, in addition to those described above, can be made by a person of ordinary skill in the art, having the benefit of the present disclosure, without departing from the spirit and scope of the disclosure defined in the following claims, the scope of which is to be accorded the broadest interpretation so as to encompass such modifications and equivalent structures. 
     Some other embodiments of the present disclosure can be available to those skilled in the art upon consideration of the specification and practice of the various embodiments disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present disclosure following general principles of the present disclosure and include the common general knowledge or conventional technical means in the art without departing from the present disclosure. The specification and examples can be shown as illustrative only, and the true scope and spirit of the disclosure are indicated by the following claims.