A wrist-worn device and a method for collecting physiological sign data

Abstract

The present application discloses a wrist-worn device, including a processor, a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bio-impedance sensor, and a position detection sensor. The processor is configured to: determine whether a body composition detection instruction input by a user is received; determine whether the rotating member rotates to a preset position according to data collected by the position detection sensor; if the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, control the electronic switch to connect the conductive electrode to the ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrode. The present application can improve the convenience of the ECG data collection process. The present application also discloses a method for collecting physical sign data, which has the above beneficial effects.

Description

Technical Field

[0001] This application relates to the field of smart wearable devices, and particularly to a wrist-worn device and a method for collecting physiological sign data. Background Art

[0002] With the rapid improvement of the informatization level, wrist-worn devices such as smart bracelets and smart watches have become increasingly popular. It has become a necessity for users to use wrist-worn devices to measure human health indicators such as heart rate, blood oxygen, and ECG electrocardiogram.

[0003] In the related art, when a user has a need to collect ECG data, the user needs to first wake up the wrist-worn device, find the corresponding APP application on the wrist-worn device, and start measuring after clicking to open the APP. The above measurement is rather troublesome. Especially when a consumer has symptoms of heart disease and needs to measure ECG data as soon as possible, the complex operation is likely to take too much time and miss the best opportunity to capture the ECG data during a heart attack.

[0004] Therefore, how to improve the convenience of the ECG data collection process is a technical problem that those skilled in the art need to solve currently. Summary of the Invention

[0005] The purpose of this application is to provide a wrist-worn device, a method for collecting physiological sign data, and a storage medium, which can improve the convenience of the ECG data collection process.

[0006] To solve the above technical problem, this application provides a wrist-worn device, including a processor, a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bioimpedance sensor, and a position detection sensor. The processor is configured to:

[0007] Judge whether a body composition detection instruction input by the user is received;

[0008] Judge whether the rotating member rotates to a preset position according to the data collected by the position detection sensor;

[0009] If the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, control the electronic switch to connect the conductive electrode to the ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrode.

[0010] Optionally, the processor is further configured to:

[0011] If a body composition detection instruction input by the user is received and the rotating member rotates to the preset position, control the electronic switch to connect the conductive electrode to the bioimpedance sensor, and use the bioimpedance sensor to collect impedance data through the conductive electrode.

[0012] Optionally, the conductive electrode includes at least one shared electrode; when the rotating member rotates to the preset position, the shared electrode is connected to the electronic switch;

[0013] Correspondingly, the process by which the processor controls the electronic switch to connect the conductive electrode to the ECG sensor includes: controlling the electronic switch to connect the shared electrode to the ECG sensor;

[0014] Correspondingly, the process by which the processor controls the electronic switch to connect the conductive electrode to the bio-impedance sensor includes: controlling the electronic switch to connect the shared electrode to the bio-impedance sensor.

[0015] Optionally, the conductive electrode includes a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode; the first conductive electrode, the second conductive electrode, and the third conductive electrode are the shared electrodes, and when the rotating member rotates to the preset position, the fourth conductive electrode is connected to the bio-impedance sensor.

[0016] Optionally, the first conductive electrode and the second conductive electrode are disposed at the wearing contact part of the wrist-worn device;

[0017] The third conductive electrode and the fourth conductive electrode are disposed at the non-wearing contact part of the wrist-worn device.

[0018] Optionally, the wrist-worn device further includes a main board, the main board is provided with a first conductive elastic member connected to the electronic switch, and a second conductive elastic member connected to the bio-impedance sensor, and the housing of the wrist-worn device is provided with a first opening and a second opening;

[0019] When the rotating member rotates to the preset position, the first conductive elastic member passes through the first opening and is connected to the third conductive electrode, and the second conductive elastic member passes through the second opening and is connected to the fourth conductive electrode.

[0020] Optionally, the wrist-worn device is a watch, and the rotating member is a bezel.

[0021] Optionally, it further includes a display screen, and the processor is further configured to:

[0022] If a body composition detection instruction input by the user is received, then control the electronic switch to connect the conductive electrode to the bio-impedance sensor;

[0023] Determine whether the impedance data collected by the bio-impedance sensor is valid data;

[0024] Otherwise, control the display screen to display a prompt message; wherein, the prompt message includes information for prompting the finger pressing position, and / or information for prompting to rotate the rotating member to the preset position.

[0025] Optionally, the processor is further configured to, if a custom instruction input by the user is received, update the target operation corresponding to the preset position according to the custom instruction; wherein, the target operation is an operation performed when the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position.

[0026] This application also provides a method for collecting physiological sign data, which is applied to a processor of a wrist-worn device. The wrist-worn device further includes a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bioimpedance sensor, and a position detection sensor. The method for collecting physiological sign data includes:

[0027] Determine whether a body composition detection instruction input by the user is received;

[0028] Judge whether the rotating member rotates to a preset position according to the data collected by the position detection sensor;

[0029] If the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, control the electronic switch to connect the conductive electrode to the ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrode.

[0030] This application also provides a storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are loaded and executed by a processor, the steps implemented by the above method for collecting physiological sign data are realized.

[0031] The present invention provides a wrist-worn device, including a processor, a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bioimpedance sensor, and a position detection sensor. The processor is configured to: determine whether a body composition detection instruction input by the user is received; judge whether the rotating member rotates to a preset position according to the data collected by the position detection sensor; if the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, control the electronic switch to connect the conductive electrode to the ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrode.

[0032] This application determines the rotational position of a rotating member using the data collected by a position detection sensor. When the rotating member rotates to a preset position, it indicates that the user has a need to collect physiological data. This application can also determine whether a body composition detection instruction input by the user is received. If the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, then the conductive electrode is controlled to communicate with the ECG sensor, and then the ECG sensor is used to collect ECG data through the conductive electrode. When the user's heart is uncomfortable, the collection of ECG data can be achieved by adjusting the rotating member, which can improve the convenience of the ECG data collection process. This application also provides a physiological data collection method and a storage medium, which have the above beneficial effects and will not be elaborated here. Description of the Drawings

[0033] To more clearly illustrate the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a flowchart of a method for collecting ECG data provided by an embodiment of the present application;

[0035] Figure 2 It is a schematic diagram of the first electrode multiplexing circuit provided by an embodiment of the present application;

[0036] Figure 3 It is a schematic diagram of the second electrode multiplexing circuit provided by an embodiment of the present application;

[0037] Figure 4 It is a schematic diagram of the gear position identification of a housing provided by an embodiment of the present application;

[0038] Figure 5 It is a schematic diagram of the connection mode of the conductive electrode of a watch provided by an embodiment of the present application;

[0039] Figure 6 It is a flowchart of a method for collecting physiological data using a watch provided by an embodiment of the present application;

[0040] Figure 7 It is a flowchart of ECG data collection based on a watch provided by an embodiment of the present application;

[0041] Figure 8 It is a flowchart of a method for collecting body composition information using a watch provided by an embodiment of the present application. Detailed Embodiments

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the protection scope of this application.

[0043] An embodiment of this application provides a wrist-worn device, including a processor, a rotating member, a conductive electrode, an electronic switch, an ECG (electrocardiogram) sensor, a bio-impedance sensor (BIA, Bio-impedance analysis), and a position detection sensor. The above-mentioned processor can be a CPU (central processing unit) or an MCU (Microcontroller Unit); the rotating member is a member that can rotate relative to other components (such as a housing, a main board, a wristband, etc.) on the wrist-worn device. The position detection sensor is used to detect the rotation position of the rotating member, and this position detection sensor can be a Hall sensor or an optical tracking sensor. The electronic switch is an operating unit that realizes the on / off of the circuit by using electronic circuits and power electronic devices. The electronic switch in the above-mentioned wrist-worn device can control the connection and disconnection between the conductive electrode and the ECG sensor, and can also control the connection and disconnection between the conductive electrode and the bio-impedance sensor.

[0044] Please refer to Figure 1 , Figure 1 which is a flowchart of a method for collecting ECG data provided by an embodiment of this application. The execution subject of this embodiment can be the processor of the wrist-worn device. The steps implemented when the processor calls the computer program in the memory include:

[0045] S101: Determine whether a body composition detection instruction input by the user is received.

[0046] Among them, the body composition detection instruction is used to detect the impedance data of the user. The user can input the body composition detection instruction through the buttons or touch components of the wrist-worn device, or the user can also input the body composition detection instruction through other terminals (such as a mobile phone or a remote control).

[0047] S102: Determine whether the rotating member rotates to a preset position according to the data collected by the position detection sensor.

[0048] This embodiment can obtain the data collected by the position detection sensor according to a preset period, and then determine whether the rotating part rotates to a preset position based on the data collected by the position detection sensor. If the rotating part rotates to the preset position, it indicates that the wrist-worn device needs to collect physiological data. If the rotating part does not rotate to the preset position, the processor can enter the sleep state or start other functions, such as music playback, sleep detection, motion monitoring, etc.

[0049] S103: If the body composition detection instruction input by the user is not received and the rotating part rotates to the preset position, control the electronic switch to connect the conductive electrode to the ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrode.

[0050] If the body composition detection instruction input by the user is not received and the rotating part rotates to the preset position, it indicates that the user may have heart discomfort at this time. At this time, the ECG data collection process can be directly entered. Specifically, the processor can control the electronic switch to connect the conductive electrode to the ECG sensor, and then use the ECG sensor to collect ECG data through the conductive electrode. This embodiment can also have an operation to enable the ECG sensor, and the enabled ECG sensor can collect corresponding ECG data through the conductive electrode. Specifically, the user can place the wrist and finger on the conductive electrode so that the ECG sensor can collect the user's ECG data through the conductive electrode.

[0051] This embodiment uses the data collected by the position detection sensor to determine the rotation position of the rotating part. When the rotating part rotates to the preset position, it indicates that the user has a need to collect physiological data. This embodiment can also determine whether the body composition detection instruction input by the user is received. If the body composition detection instruction input by the user is not received and the rotating part rotates to the preset position, control the conductive electrode to be connected to the ECG sensor, and then use the ECG sensor to collect ECG data through the conductive electrode. When the user's heart is uncomfortable, the collection of ECG data can be achieved by adjusting the rotating part, which can improve the convenience of the ECG data collection process.

[0052] As a further introduction to the above embodiment, the above processor can also perform the following operations: If the body composition detection instruction input by the user is received and the rotating part rotates to the preset position, control the electronic switch to connect the conductive electrode to the bioimpedance sensor, and use the bioimpedance sensor to collect impedance data through the conductive electrode. This embodiment can also have an operation to enable the bioimpedance sensor, and the enabled bioimpedance sensor can collect corresponding impedance data through the conductive electrode. Specifically, the user can place the wrist and finger on the conductive electrode so that the bioimpedance sensor can collect the user's impedance data through the conductive electrode.

[0053] This embodiment does not limit the order of execution of the two actions of "receiving a body composition detection instruction" and "rotating the rotating member to a preset position" during the above impedance data acquisition process. Specifically, this embodiment can preset a first delay time. If the action of "rotating the rotating member to a preset position" is executed first, it can be determined whether a body composition detection instruction is received within the first delay time after the rotating member rotates to the preset position. If so, it enters the operation process of "controlling the electronic switch to connect the conductive electrode to the bio-impedance sensor and using the bio-impedance sensor to collect impedance data through the conductive electrode". If not, it enters the operation process of "controlling the electronic switch to connect the conductive electrode to the ECG sensor and using the ECG sensor to collect ECG data through the conductive electrode". This embodiment can also preset a second delay time. If the action of "receiving a body composition detection instruction" is executed first, it can be determined whether the rotating member rotates to the preset position within the second delay time after receiving the body composition detection instruction. If so, it enters the operation process of "controlling the electronic switch to connect the conductive electrode to the bio-impedance sensor and using the bio-impedance sensor to collect impedance data through the conductive electrode". If not, the user is reminded to rotate the rotating member, or it is determined that the received body composition detection instruction is an invalid instruction.

[0054] Further, the ECG sensor and the bio-impedance sensor can share the conductive electrode, thereby reducing the number of conductive electrodes in the wrist-worn device. For example, the conductive electrode includes at least one shared electrode; when the rotating member rotates to the preset position, the shared electrode is connected to the electronic switch.

[0055] Based on the use of the above shared electrode, the processor can control the electronic switch to connect the shared electrode to the ECG sensor; the processor can also control the electronic switch to connect the shared electrode to the bio-impedance sensor.

[0056] Taking the example that the ECG sensor requires 3 conductive electrodes to collect ECG data and the bio-impedance sensor requires 4 conductive electrodes to collect impedance data, the conductive electrode includes the first conductive electrode, the second conductive electrode, the third conductive electrode, and the fourth conductive electrode.

[0057] Please refer to Figure 2 , Figure 2 which is the first electrode sharing circuit schematic diagram provided by the embodiment of the present application. The first conductive electrode, the second conductive electrode, and the third conductive electrode are all shared electrodes. When the rotating member rotates to the preset position, the fourth conductive electrode is connected to the bio-impedance sensor. The ECG sensor can use the first conductive electrode, the second conductive electrode, and the third conductive electrode to collect ECG data, and the bio-impedance sensor can use the first conductive electrode, the second conductive electrode, the third conductive electrode, and the fourth conductive electrode to collect impedance data.

[0058] Please refer to Figure 3 ,Figure 3 This is the schematic diagram of the second electrode multiplexing circuit provided by the embodiment of the present application. The first conductive electrode, the second conductive electrode, the third conductive electrode, and the fourth electrode are all multiplexing electrodes. The ECG sensor can collect ECG data by using any three of the first conductive electrode, the second conductive electrode, the third conductive electrode, and the fourth conductive electrode. The bio-impedance sensor can collect impedance data by using the first conductive electrode, the second conductive electrode, the third conductive electrode, and the fourth conductive electrode. As a feasible implementation manner, in Figure 3 the manner shown, when it is necessary to control the connection between the conductive electrode and the ECG sensor, the electronic switch can control the first conductive electrode, the second conductive electrode, and the third conductive electrode to be connected to the ECG sensor respectively; when it is necessary to control the connection between the conductive electrode and the bio-impedance sensor, the electronic switch can control the first conductive electrode, the second conductive electrode, and the third conductive electrode to be connected to the bio-impedance sensor respectively. The above wrist-worn device further includes a main board, the main board is provided with a conductive elastic member connected to the electronic switch, and a second conductive elastic member connected to the bio-impedance sensor. The housing of the wrist-worn device is provided with a first opening and a second opening. When the rotating member rotates to a preset position, the first conductive elastic member passes through the first opening and is connected to the third conductive electrode, and the second conductive elastic member passes through the second opening and is connected to the fourth conductive electrode. By the above method, the vital sign data sensor can collect data through the conductive electrode only when the rotating member rotates to the preset position, which improves the reliability of detection. The above first conductive elastic member and the second conductive elastic member can be conductive elastic sheets or conductive elastic thimbles.

[0059] In Figure 2 and Figure 3 the electrode multiplexing circuit shown, the processor can send a control signal to the electronic switch according to the rotation position of the rotating member, so that the electronic switch switches the normally open contact NO (normal open) and the normally closed contact NC (normal close), thereby adjusting the connection between the conductive electrode and the ECG sensor and the bio-impedance sensor. Further, the above first conductive electrode and the second conductive electrode can be arranged at the wearing contact part of the wrist-worn device, such as the lower surface of the lower shell of the wrist-worn device; the third conductive electrode and the fourth conductive electrode can be arranged at the non-wearing contact part of the wrist-worn device, such as the rotating member, the button, the wristband, the upper surface of the upper shell, the lower surface of the upper shell, etc. The wearing contact part is the part where the wrist-worn device contacts the user's body when the wrist-worn device is worn, and the non-wearing contact part is the part where the wrist-worn device does not contact the user's body when the wrist-worn device is worn.

[0060] As for Figure 1For further introduction of the corresponding embodiment, the steps implemented when the processor calls the computer program in the memory further include: if a custom instruction input by the user is received, the target operation corresponding to the preset position is updated according to the custom instruction; wherein, the target operation is an operation performed when no body composition detection instruction input by the user is received and the rotating member rotates to the preset position.

[0061] In the above manner, the operation implemented when the rotating member rotates to the preset position can be customized by the user. For example, if the user updates the target operation corresponding to the preset position to the ECG data acquisition operation through a custom instruction, if no body composition detection instruction input by the user is received and the rotating member rotates to the preset position, the operations performed include: controlling the electronic switch to connect the conductive electrode to the ECG sensor, and using the ECG sensor to collect ECG data through the conductive electrode. If the user updates the target operation corresponding to the preset position to the impedance data acquisition operation through a custom instruction, if the rotating member rotates to the preset position, the operations performed include: controlling the electronic switch to connect the conductive electrode to the bioimpedance sensor, and using the bioimpedance sensor to collect impedance data through the conductive electrode. If the user updates the target operation corresponding to the preset position to the body temperature data acquisition operation through a custom instruction, if the rotating member rotates to the preset position, the operations performed include: controlling the electronic switch to connect the conductive electrode to the temperature sensor, and using the temperature sensor to collect body temperature data through the conductive electrode.

[0062] As a feasible implementation manner, the steps implemented when the processor calls the computer program in the memory further include: if a body composition detection instruction input by the user is received, controlling the electronic switch to connect the conductive electrode to the bioimpedance sensor; determining whether the impedance data collected by the bioimpedance sensor is valid data; if so, controlling the memory to store the impedance data collected by the bioimpedance sensor; if not, controlling the display screen to display a prompt message; wherein, the prompt message includes information prompting the finger pressing position, and / or, information prompting to rotate the rotating member to the preset position. The above embodiment can guide the user to perform impedance data detection after the user inputs the body composition detection instruction, and can help users who are not familiar with the impedance data acquisition function to complete the operation, improving the user experience.

[0063] The above embodiment is illustrated below by a watch with a vital sign data detection function in actual application. When the above wrist-worn device can be a watch, the rotating member is the bezel of the watch.

[0064] The above-mentioned watch may include a processor, a graphics processor, a memory, a wireless communication module, a motion sensor, a position detection sensor, an ECG sensor, a bioimpedance sensor, conductive electrodes, and a bezel (equivalent to the rotating member mentioned above). The ECG sensor can measure ECG data through three conductive electrodes: LA (Left Arm), RA (Right Arm), and RLD (Right Leg Driver). Two conductive electrodes, LA and RLD, are placed on the bottom case of the watch, and the conductive electrode RA is placed on the bezel or the button. If the user wears the watch on the left hand, the left wrist contacts the conductive electrodes LA and RLD, and the right finger presses the conductive electrode RA on the bezel or the button. In this way, the ECG sensor can measure the user's ECG data, which can be processed by the processor and then displayed as the user's electrocardiogram on the display screen or the mobile phone. The bioimpedance sensor measures the body impedance through four electrodes: FIR, FVR, FIL, and FVL. Based on the measured impedance data and combined with information such as the user's age, gender, height, and weight, the processor can calculate physical signs information such as the user's body fat percentage, water percentage, and muscle mass through a body composition algorithm. Taking Figure 2 the structure shown as an example, RLD and FIL can correspond to the first conductive electrode, LA and FVL can correspond to the second conductive electrode, RA and FIR can correspond to the third conductive electrode, and FVR corresponds to the fourth conductive electrode. The first conductive electrode, the second conductive electrode, and the third conductive electrode can simultaneously serve as measurement electrodes for both ECG data and impedance data. The processor controls the connection of the first conductive electrode, the second conductive electrode, and the third conductive electrode to the ECG sensor or the bioimpedance sensor respectively through an electronic switch.

[0065] Furthermore, the housing and the display screen of the watch can be fixed components on the watch. The bezel is assembled to the housing through a positioning connection mechanism such as a buckle, and the bezel can rotate relative to the housing and the display screen. A rotation mark can be set on the bezel to indicate the rotation position of the bezel; there are gear marks on the cover glass of the display screen or the housing to indicate the rotation position of the bezel relative to the housing. Please refer to Figure 4 , Figure 4 which is a schematic diagram of a gear mark on a housing provided by an embodiment of the present application. Each of the first position and the second position corresponds to a gear mark. Figure 4 In [the figure], 401 is the rotation mark of the bezel, 402 is the gear mark corresponding to the first position of the housing, 403 is the gear mark corresponding to the second position of the housing, and 404 is the button on the housing.

[0066] The watch dial defaults to display the current time. When the user rotates the bezel, when the bezel rotates to the first position (i.e., the preset position in the above text), the change in magnetic induction intensity detected by the three-axis Hall sensor > the preset threshold T (taking into account preventing false triggering of slight rotation, in this embodiment, this threshold is set to T = 200uT), and an interrupt signal is output to wake up the processor. After the processor detects the interrupt and sensor data sent by the three-axis Hall sensor, it determines that the bezel has rotated to the first position in the current state, and the processor enters the corresponding physical sign detection function, which includes an electrocardiogram measurement function and a body composition measurement function. When the bezel rotates to the second position, the change in magnetic induction intensity detected by the three-axis Hall sensor > the preset threshold T, and an interrupt signal is output to wake up the processor. After the processor detects the interrupt and sensor data sent by the three-axis Hall sensor, it determines that the bezel has rotated to the second position in the current state, and the processor can enter other modes such as a motion detection mode and a flight mode.

[0067] If the user rotates the bezel to the gear identifier corresponding to the first position of the housing, it can be determined at this time that the bezel has rotated to the first position, and the electrocardiogram measurement function is started. After the bezel rotates to the first position, if a body composition detection instruction is received from the user, the body composition detection function is started.

[0068] After starting the electrocardiogram measurement function, the processor controls the electronic switch, and then connects the conductive electrodes of the bezel and the case to the ECG sensor, so that the ECG sensor can collect ECG data. The processor can control the display screen to display the screen of the ECG measurement state, save the ECG data collected by the ECG sensor in the memory, and draw an electrocardiogram on the display screen at the same time. After the processor collects sufficient ECG data through the ECG sensor, it can prompt the user that the measurement is completed, and send the ECG data to the mobile phone APP via Bluetooth. The user can use the mobile phone APP to view the complete electrocardiogram of this measurement and generate analysis and suggestions for the electrocardiogram. After starting the body composition detection function, the processor controls the conductive electrode switching circuit, and then connects the conductive electrodes of the bezel and the case to the bioimpedance sensor, so that the bioimpedance sensor can collect impedance data. The processor can save the impedance data collected by the bioimpedance sensor in the memory, and run the body composition algorithm to calculate the current body composition information of the user from the impedance data.

[0069] Please refer to Figure 5 , Figure 5Schematic diagram of a conductive electrode connection method for a watch provided by an embodiment of the present application. The watch includes a bezel 510, an insulating partition 520, an upper case 530, a bottom case 531, a button 540, a first conductive elastic member 550 and a second conductive elastic member 551 located on the upper case, a first conductive electrode 560, a second conductive electrode 561, a third conductive electrode 562, a fourth conductive electrode 563, an electrode contact 570 of the third conductive electrode, and an electrode contact 571 of the fourth conductive electrode. The outer surface and the inner surface of the heart rate lens sapphire glass on the bottom case of the watch are plated with a connected conductive film, and the first conductive electrode and the second conductive electrode can be the above-mentioned conductive film. The outer surface of the heart rate lens is at the position where the watch contacts the wrist skin. The inner surface of the heart rate lens is connected to the main board through a conductive elastic member or other conductive materials with good electrical conductivity. The ECG sensor, the bio-impedance sensor, and related circuit devices are located on the main board. In this way, an electronic path is formed between the wrist skin, the first conductive electrode, and the second conductive electrode, and the ECG sensor and the bio-impedance sensor. The third conductive electrode and the fourth conductive electrode can be the outer surface of the metal bezel. There is an insulating partition between the third conductive electrode and the fourth conductive electrode, and the outer surface of a complete bezel is divided into two conductive electrodes by two insulating partitions. Except for the electrode contact area, an insulating layer is plated on the inner surface of the metal bezel, and only the electrode contacts retain good electrical conductivity. When the bezel rotates to the set first position or second position, the main board passes through the opening at the corresponding position of the upper case through the conductive elastic member and contacts the electrode contacts at the corresponding position of the bezel. In this way, an electronic path is formed between the finger skin, the third conductive electrode, and the fourth conductive electrode, and the ECG sensor and the bio-impedance sensor.

[0070] As a feasible implementation manner, the position detection sensor in the above watch can be a three-axis Hall sensor. The three-axis Hall sensor is placed on the main board below the bezel. Magnets can be buried at specific positions in the bezel. During the rotation of the bezel with the magnets, the magnetic field data collected by the three-axis Hall sensor changes, and thus the detection of the rotation position of the bezel can be realized. The three-axis Hall sensor can detect changes in the magnetic fields of the surrounding X, Y, and Z axes and can send an interrupt signal to the processor according to the set magnetic field change threshold. The minimum change in the single-axis magnetic induction intensity that the three-axis Hall sensor can detect is 3 uT.

[0071] Further, in this embodiment, magnets can be embedded in the bezel according to the number and positions of the trigger gears. The sizes, positions, and numbers of the magnets, as well as the placement positions of the three-axis Hall sensors on the main board, can also be adjusted according to actual application requirements. For example, the first position of the watch is at the position corresponding to 9 o'clock, and the second position is at the position corresponding to 11 o'clock. The gear markings on the housing include the default gear marking corresponding to the 9 o'clock position, the first gear marking corresponding to the 11 o'clock position, and the second gear marking corresponding to the 7 o'clock position. The three-axis Hall sensor can be placed near the projection of the default gear marking on the main board. The sizes, numbers, and positions of the magnets all affect the magnetic induction intensity around the three-axis Hall sensor. Therefore, in this embodiment, the sizes, numbers, and positions of the magnets can be adjusted so that there are obvious differences in the magnetic induction intensities of the X, Y, and Z axes when the three-axis Hall sensor detects that the rotation marking rotates to the default position, the first position, and the second position respectively. In this embodiment, one large magnet can be embedded at the 9 o'clock position of the bezel, and multiple small magnets can be embedded in the interval from 7 o'clock to 11 o'clock. This embodiment can calibrate the magnetic field trigger thresholds, trigger regions, and anti-misoperation thresholds for the three gears at 7 o'clock, 9 o'clock, and 11 o'clock. The magnetic field trigger threshold refers to the magnetic field intensity threshold for determining that the rotation marking on the bezel rotates to a certain gear marking. The trigger region refers to the region corresponding to the bezel rotation position where the rotation marking on the bezel rotates to a certain gear marking (for example, if the rotation marking on the bezel points to the region from 6:40 to 7:20, it is determined that the rotation marking rotates to the second position corresponding to 7 o'clock). The anti-misoperation threshold is a safety margin set to prevent confusion in the recognition of multiple gear markings. Taking the second gear marking corresponding to 7 o'clock as an example, the magnetic induction intensities of the X, Y, and Z axes at 20 minutes to the left and right of the second gear marking corresponding to 7 o'clock can be marked, that is, the magnetic induction intensities M720x, M720y, M720z at the 7:20 position, and the magnetic induction intensities M640x, M640y, M640z at the 6:40 position. In the same way, the magnetic induction intensities of the X, Y, and Z axes at 20 degrees to the left and right of the default gear marking corresponding to the 9 o'clock position are marked. The magnetic induction intensities M920x, M920y, M920z at the 9:20 position, and the magnetic induction intensities M840x, M840y, M840z at the 8:40 position. To prevent mis-triggering, the sizes and positions of the magnets are adjusted so that there is a sufficient safety margin between the magnetic induction intensity at the 8:40 position detected by the three-axis Hall sensor and the magnetic induction intensity at the 7:20 position. That is: |M840x - M720x| > △Mx, |M840y - M720y| > △My, |M840z - M720z| > △Mz. In this embodiment, △Mx = △My = △Mz = 200uT. △Mx is the X-axis safety margin, △My is the Y-axis safety margin, and △Mz is the Z-axis safety margin.

[0072] Please refer to Figure 6 , Figure 6The flowchart of a method for collecting physical signs data using a watch provided by an embodiment of the present application. The implementation process of this embodiment can be as follows: When the user rotates the bezel, if the change value of the magnetic induction intensity > the preset threshold T of the three-axis Hall sensor, the three-axis Hall sensor detects and triggers an output interrupt signal to wake up the processor; the processor reads the current three-axis magnetic induction intensity values of the three-axis Hall sensor to determine the rotation position of the bezel. If the bezel rotates to the first position, it enters the process of starting the electrocardiogram measurement function; if the bezel rotates to the second position, it enters the user-defined function, such as outdoor running, displaying a payment QR code, etc.; if the bezel rotates to other positions, the processor enters the sleep state and controls the three-axis Hall sensor to enter the low-power detection mode.

[0073] Please refer to Figure 7 , Figure 7 The flowchart of an ECG data collection based on a watch provided by an embodiment of the present application, specifically including the following steps:

[0074] S701: The processor controls the electronic switch to connect the first conductive electrode, the second conductive electrode, and the third conductive electrode to the ECG sensor.

[0075] S702: The processor enables the ECG sensor.

[0076] S703: The processor saves the ECG data collected by the ECG sensor in the memory.

[0077] S704: The processor draws an electrocardiogram waveform on the display screen according to the ECG data in the memory.

[0078] S705: After the amount of ECG data saved in the memory meets the electrocardiogram requirements, the processor reminds on the display screen that the current ECG data collection is completed, so that the user can rotate the bezel back to the default position.

[0079] S706: After the processor determines that the bezel has returned to the default gear, it sends the ECG data in the memory to the mobile phone via Bluetooth, reminding the user that the current electrocardiogram measurement is completed, and asking the user to view the detailed ECG data in the mobile phone APP.

[0080] S707: The processor turns off the electronic switch and the ECG sensor.

[0081] In the above embodiment, the bezel of the watch can be rotated. The bezel is made of a conductive material to realize the function of the conductive electrode. The rotation position of the bezel is detected by a sensor inside the watch. The user can connect the conductive electrode on the bezel to the ECG sensor inside the watch by simply rotating the bezel to a specified position, without operating the touch screen, and can enter the corresponding ECG data collection mode, which can improve the collection efficiency and convenience of the ECG data.

[0082] When the bezel is not rotated to the preset position and the user activates the body composition measurement function, the following Figure 8 shown process can assist the user in detecting body composition information. Figure 8 FIG. is a flowchart of a method for collecting body composition information using a watch provided by an embodiment of the present application, which specifically includes the following steps:

[0083] S801: The user enters the body composition measurement function through touch screen or button operation.

[0084] S802: The processor triggers the body composition detection function.

[0085] S803: The processor controls the electronic switch to connect the first conductive electrode, the second conductive electrode, and the third conductive electrode to the bio-impedance sensor.

[0086] S804: The processor enables the bio-impedance sensor.

[0087] S805: The processor controls the display screen to remind the user to press the thumb and index finger on the two electrodes of the bezel and rotate the bezel to the preset position.

[0088] S806: The processor determines whether the bezel is rotated to the preset position through the Hall sensor; if so, it proceeds to S807; if not, it proceeds to S805.

[0089] S807: The processor controls the bio-impedance sensor to enter the measurement mode and determines the validity of the collected data; if so, it proceeds to S808; if not, it proceeds to S805.

[0090] S808: The processor stores the impedance data collected by the bio-impedance sensor in the memory.

[0091] S809: After the amount of data stored in the memory meets the algorithm requirements, the processor runs the body composition algorithm to calculate the user's current body composition information.

[0092] S810: The processor controls the display screen to prompt that the current body composition data collection is completed, and asks the user to rotate the bezel back to the default position.

[0093] S811: After the processor determines that the bezel has returned to the default position, it reminds the user that the current measurement is completed and displays the current body composition measurement result.

[0094] S812: The processor turns off the electronic switch.

[0095] S813: The processor turns off the bio-impedance sensor.

[0096] After the user selects the body composition detection function, the above embodiments can guide the user to perform body composition detection, which can help users unfamiliar with the body composition detection function complete the body composition detection and improve the user experience.

[0097] An embodiment of the present application further provides a method for collecting physiological sign data, which is applied to a processor of a wrist-worn device. The wrist-worn device further includes a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bio-impedance sensor, and a position detection sensor. The method for collecting physiological sign data includes:

[0098] Determine whether a body composition detection instruction input by the user is received;

[0099] Judge whether the rotating member rotates to a preset position according to the data collected by the position detection sensor;

[0100] If the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, control the electronic switch to connect the conductive electrode to the ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrode.

[0101] In this embodiment, the rotation position of the rotating member is determined by the data collected by the position detection sensor. When the rotating member rotates to the preset position, it indicates that the user has a need to collect physiological sign data. This embodiment can also determine whether a body composition detection instruction input by the user is received. If the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, control the conductive electrode to be connected to the ECG sensor, and then use the ECG sensor to collect ECG data through the conductive electrode. When the user's heart is uncomfortable, the ECG data can be collected by adjusting the rotating member, which can improve the convenience of the ECG data collection process.

[0102] Further, it further includes:

[0103] If the body composition detection instruction input by the user is received and the rotating member rotates to the preset position, control the electronic switch to connect the conductive electrode to the bio-impedance sensor, and use the bio-impedance sensor to collect impedance data through the conductive electrode.

[0104] Further, the conductive electrode includes at least one multiplexed electrode; when the rotating member rotates to the preset position, the multiplexed electrode is connected to the electronic switch;

[0105] Correspondingly, controlling the electronic switch to connect the conductive electrode to the ECG sensor includes: controlling the electronic switch to connect the multiplexed electrode to the ECG sensor;

[0106] Correspondingly, controlling the electronic switch to connect the conductive electrode to the bio-impedance sensor includes: controlling the electronic switch to connect the multiplexed electrode to the bio-impedance sensor.

[0107] Further, the conductive electrodes include a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode; the first conductive electrode, the second conductive electrode, and the third conductive electrode are multiplexed electrodes, and the fourth conductive electrode is connected to the bio-impedance sensor when the rotating member rotates to a preset position.

[0108] Further, the first conductive electrode and the second conductive electrode are disposed at the wearing contact portion of the wrist-worn device;

[0109] The third conductive electrode and the fourth conductive electrode are disposed at the non-wearing contact portion of the wrist-worn device.

[0110] Further, the wrist-worn device further includes a main board, the main board is provided with a first conductive elastic member connected to the electronic switch, and a second conductive elastic member connected to the bio-impedance sensor, and the housing of the wrist-worn device is provided with a first opening and a second opening;

[0111] When the rotating member rotates to the preset position, the first conductive elastic member passes through the first opening and is connected to the third conductive electrode, and the second conductive elastic member passes through the second opening and is connected to the fourth conductive electrode.

[0112] Further, the wrist-worn device is a watch, and the rotating member is a bezel.

[0113] Further, the wrist-worn device further includes a display screen;

[0114] Correspondingly, it further includes:

[0115] If a body composition detection instruction input by the user is received, the electronic switch is controlled to connect the conductive electrode to the bio-impedance sensor;

[0116] Judge whether the impedance data collected by the bio-impedance sensor is valid data;

[0117] If not, control the display screen to display a prompt message; wherein, the prompt message includes information prompting the finger pressing position, and / or, information prompting to rotate the rotating member to the preset position.

[0118] Further, it further includes:

[0119] If a custom instruction input by the user is received, update the target operation corresponding to the preset position according to the custom instruction; wherein, the target operation is an operation executed when no body composition detection instruction input by the user is received and the rotating member rotates to the preset position.

[0120] An embodiment of the present application further provides a vital sign data acquisition system, which is applied to the processor of the wrist-worn device. The wrist-worn device further includes a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bio-impedance sensor, and a position detection sensor. The vital sign data acquisition method includes:

[0121] An instruction receiving module, configured to determine whether a body composition detection instruction input by a user is received;

[0122] A position detection module, configured to determine whether a rotating member rotates to a preset position according to data collected by a position detection sensor;

[0123] An ECG acquisition module, configured to, if a body composition detection instruction input by a user is not received and the rotating member rotates to the preset position, control an electronic switch to connect a conductive electrode to an ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrode.

[0124] In this embodiment, the rotation position of the rotating member is determined by using data collected by the position detection sensor. When the rotating member rotates to the preset position, it indicates that the user has a need to collect physiological data. This embodiment can also determine whether a body composition detection instruction input by the user is received. If a body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, the conductive electrode is controlled to be connected to the ECG sensor, and then the ECG sensor is used to collect ECG data through the conductive electrode. When the user's heart is uncomfortable, the ECG data can be collected by adjusting the rotating member, which can improve the convenience of the ECG data collection process.

[0125] Further, it further includes:

[0126] An impedance acquisition module, configured to, if a body composition detection instruction input by a user is received and the rotating member rotates to the preset position, control an electronic switch to connect a conductive electrode to a bioimpedance sensor, and use the bioimpedance sensor to collect impedance data through the conductive electrode.

[0127] Further, the conductive electrode includes at least one multiplexed electrode; when the rotating member rotates to the preset position, the multiplexed electrode is connected to the electronic switch;

[0128] Correspondingly, the process of the ECG acquisition module controlling the electronic switch to connect the conductive electrode to the ECG sensor includes: controlling the electronic switch to connect the multiplexed electrode to the ECG sensor;

[0129] Correspondingly, the process of the ECG acquisition module controlling the electronic switch to connect the conductive electrode to the bioimpedance sensor includes: controlling the electronic switch to connect the multiplexed electrode to the bioimpedance sensor.

[0130] Further, the conductive electrode includes a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode; the first conductive electrode, the second conductive electrode, and the third conductive electrode are multiplexed electrodes, and when the rotating member rotates to the preset position, the fourth conductive electrode is connected to the bioimpedance sensor.

[0131] Further, the first conductive electrode and the second conductive electrode are disposed at the wearing contact part of the wrist-worn device;

[0132] The third conductive electrode and the fourth conductive electrode are disposed at the non-wearing contact part of the wrist-worn device.

[0133] Further, the wrist-worn device further includes a main board, the main board is provided with a first conductive elastic member connected to the electronic switch, and a second conductive elastic member connected to the bio-impedance sensor, and the housing of the wrist-worn device is provided with a first opening and a second opening;

[0134] When the rotating member rotates to a preset position, the first conductive elastic member passes through the first opening and is connected to the third conductive electrode, and the second conductive elastic member passes through the second opening and is connected to the fourth conductive electrode.

[0135] Further, the wrist-worn device is a watch, and the rotating member is a bezel.

[0136] Further, the wrist-worn device further includes a display screen;

[0137] Correspondingly, it further includes:

[0138] An auxiliary module, configured to control the electronic switch to connect the conductive electrode and the bio-impedance sensor if a body composition detection instruction input by the user is received; and further configured to determine whether the impedance data collected by the bio-impedance sensor is valid data; if not, control the display screen to display a prompt message; wherein the prompt message includes information for prompting the finger pressing position, and / or information for prompting to rotate the rotating member to the preset position.

[0139] Further, it further includes:

[0140] A customization module, configured to update the target operation corresponding to the preset position according to the customization instruction if a customization instruction input by the user is received; wherein the target operation is an operation executed when no body composition detection instruction input by the user is received and the rotating member rotates to the preset position.

[0141] Since the embodiments of the method and system parts correspond to the embodiments of the wrist-worn device part, for the embodiments of the method and system parts, please refer to the description of the embodiments of the wrist-worn device part, which will not be elaborated here.

[0142] The present application also provides a storage medium, on which a computer program is stored, and when the computer program is executed, the steps provided by the above embodiments can be implemented. The storage medium may include: various media such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc that can store program codes.

[0143] The various embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0144] It should also be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

Claims

1. A wrist-worn device, characterized in that, it includes a processor, a rotating member, conductive electrodes, an electronic switch, an ECG sensor, a bioimpedance sensor, and a position detection sensor. Among them, the conductive electrodes include a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode; the first conductive electrode, the second conductive electrode, and the third conductive electrode are shared electrodes, and when the rotating member rotates to a preset position, the fourth conductive electrode is connected to the bioimpedance sensor; when the rotating member rotates to the preset position, the shared electrodes are connected to the electronic switch; The processor is configured to: judge whether a body composition detection instruction input by the user is received; judge whether the rotating member rotates to the preset position according to the data collected by the position detection sensor; if the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, then control the electronic switch to connect the shared electrodes to the ECG sensor, and use the ECG sensor to collect ECG data through the shared electrodes; The wrist-worn device further includes a main board, the main board is provided with a first conductive elastic member connected to the electronic switch, and a second conductive elastic member connected to the bioimpedance sensor, and the housing of the wrist-worn device is provided with a first opening and a second opening; when the rotating member rotates to the preset position, the first conductive elastic member passes through the first opening and is connected to the third conductive electrode, and the second conductive elastic member passes through the second opening and is connected to the fourth conductive electrode.

2. The wrist-worn device according to claim 1, characterized in that, the processor is further configured to: if a body composition detection instruction input by the user is received and the rotating member rotates to the preset position, then control the electronic switch to connect the shared electrodes to the bioimpedance sensor, and use the bioimpedance sensor to collect impedance data through the first conductive electrode, the second conductive electrode, the third conductive electrode, and the fourth conductive electrode.

3. The wrist-worn device according to claim 1, characterized in that, the first conductive electrode and the second conductive electrode are arranged at the wearing contact part of the wrist-worn device; the third conductive electrode and the fourth conductive electrode are arranged at the non-wearing contact part of the wrist-worn device.

4. The wrist-worn device according to claim 1, characterized in that, the wrist-worn device is a watch, and the rotating member is a bezel.

5. The wrist-worn device according to claim 1, characterized in that, it further includes a display screen, and the processor is further configured to: if a body composition detection instruction input by the user is received, then control the electronic switch to connect the shared electrodes to the bioimpedance sensor; judge whether the impedance data collected by the bioimpedance sensor is valid data; if not, then control the display screen to display a prompt message; wherein, the prompt message includes information prompting the finger pressing position, and / or information prompting to rotate the rotating member to the preset position.

6. The wrist-worn device according to any one of claims 1 to 5, characterized in that, The processor is further configured to, if a custom instruction input by the user is received, update the target operation corresponding to the preset position according to the custom instruction; wherein the target operation is an operation performed when the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position.

7. A method for collecting physical sign data, characterized in that, applied to the wrist-worn device according to any one of claims 1 to 6, the method for collecting physical sign data includes: judging whether a body composition detection instruction input by the user is received; judging whether the rotating member rotates to a preset position according to the data collected by the position detection sensor; if the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position, controlling the electronic switch to connect the multiplexed electrode to the ECG sensor, and collecting ECG data by using the ECG sensor through the multiplexed electrode.

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