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, a vital sign detection sensor, and a position detection sensor. The processor is configured to: determine whether the rotating member rotates to a preset position according to the data collected by the position detection sensor; if so, determine a target application according to an application selection instruction input by a user, and connect the conductive electrode to the vital sign detection sensor corresponding to the target application, so that the vital sign detection sensor corresponding to the target application collects vital sign data through the conductive electrode. The present application can improve the collection efficiency of vital sign data. The present application also discloses a method for collecting vital 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, and it has become a necessity for users to use wrist-worn devices to measure physiological sign data such as electrocardiograms and body fat.

[0003] In the actual use process, there are usually many applications installed in the wrist-worn device, such as music playback applications, motion detection applications, voice memo applications, etc. Since the display size of the wrist-worn device is small, it takes a certain amount of time for the user to select and enable an application from the application list. When the user feels unwell, it is necessary to enable the physiological sign data collection application in a timely manner. However, selecting the corresponding physiological sign data collection application from a large number of applications takes too much time, and the best opportunity to collect physiological sign data during the user's illness may be missed.

[0004] Therefore, how to improve the collection efficiency of physiological sign data is a technical problem that those skilled in the art need to solve at present. 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 collection efficiency of physiological sign data.

[0006] To solve the above technical problems, this application provides a wrist-worn device, including: a processor, a rotating member, a conductive electrode, a physiological sign detection sensor, and a position detection sensor. The processor is configured to:

[0007] Judge whether the rotating member rotates to a preset position according to the data collected by the position detection sensor;

[0008] If so, determine a target application according to the application selection instruction input by the user, and connect the conductive electrode to the physiological sign detection sensor corresponding to the target application, so that the physiological sign detection sensor corresponding to the target application can collect physiological sign data through the conductive electrode.

[0009] Optionally, the conductive electrode includes at least one multiplexing electrode; when the rotating member rotates to the preset position, the multiplexing electrode is connected to an electronic switch;

[0010] Correspondingly, the process of the processor connecting the conductive electrode to the physiological sign detection sensor corresponding to the target application includes:

[0011] Control the electronic switch to connect the multiplexing electrode to the physiological sign detection sensor corresponding to the target application.

[0012] Optionally, if the target application is an ECG detection application, the process by which the processor connects the conductive electrode to the vital sign detection sensor corresponding to the target application includes:

[0013] Sending a first control instruction to the electronic switch to cause the electronic switch to connect the multiplexed electrode to the ECG sensor.

[0014] Optionally, if the target application is a body fat detection application, the process by which the processor connects the conductive electrode to the vital sign detection sensor corresponding to the target application includes:

[0015] Sending a second control instruction to the electronic switch to cause the electronic switch to connect the multiplexed electrode to the bio-impedance sensor.

[0016] Optionally, after connecting the conductive electrode to the vital sign detection sensor corresponding to the target application, the processor is further configured to:

[0017] Determine whether the vital sign data collected by the vital sign detection sensor is valid data;

[0018] If so, store the vital sign data collected by the vital sign detection sensor;

[0019] If not, control the display screen to display a prompt message; wherein, the prompt message includes a hand pressing position prompt message.

[0020] Optionally, the wrist-worn device further includes a touch screen and / or buttons;

[0021] Correspondingly, before determining the target application according to the application selection instruction input by the user, the processor is further configured to:

[0022] Judge whether the application selection instruction input by the user is received according to the touch data and / or the button triggering situation.

[0023] Optionally, after connecting the conductive electrode to the vital sign detection sensor corresponding to the target application, the processor is further configured to:

[0024] Receive the vital sign data collected by the vital sign detection sensor;

[0025] If the vital sign data is ECG data, display the electrocardiogram corresponding to the ECG data;

[0026] If the vital sign data is impedance data, calculate the user's body composition information according to the impedance data.

[0027] Optionally, the vital sign detection sensor includes an ECG sensor and a bio-impedance sensor;

[0028] The conductive electrodes include a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode; the ECG sensor and the bioimpedance sensor share the first conductive electrode, the second conductive electrode, and the third conductive electrode, and when the rotating member rotates to the preset position, the fourth conductive electrode is connected to the bioimpedance sensor.

[0029] Optionally, the first conductive electrode and the second conductive electrode are disposed at the wearing contact portion of the wrist-worn device, and the third conductive electrode and the fourth conductive electrode are disposed at the non-wearing contact portion of the wrist-worn device.

[0030] Optionally, the wrist-worn device is a watch, the rotating member is a bezel, the third conductive electrode and the fourth conductive electrode are disposed on the upper surface of the rotating member, and an insulating member is disposed between the third conductive electrode and the fourth conductive electrode.

[0031] 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 bioimpedance sensor, and the housing of the wrist-worn device is provided with a first opening and a second opening;

[0032] 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.

[0033] Optionally, the processor is further configured to:

[0034] If a physical sign data acquisition instruction input by the user is received, then control the conductive electrode to be connected to the corresponding physical sign detection sensor;

[0035] Judge whether the rotating member rotates to the preset position according to the data collected by the position detection sensor;

[0036] If the rotating member rotates to the preset position, then judge whether the physical sign data collected by the physical sign detection sensor is valid data;

[0037] If the rotating member does not rotate to the preset position, then prompt the user to rotate the rotating member to the preset position;

[0038] If the physical sign data is valid data, then store the physical sign data collected by the physical sign detection sensor;

[0039] If the physical sign data is not valid data, then prompt the user to touch the conductive electrode.

[0040] The present 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, a physiological sign detection sensor, and a position detection sensor. The method for collecting physiological sign data includes:

[0041] Judging whether the rotating member rotates to a preset position according to the data collected by the position detection sensor;

[0042] If so, determining a target application according to an application selection instruction input by a user, and connecting the conductive electrode to the physiological sign detection sensor corresponding to the target application, so that the physiological sign detection sensor corresponding to the target application collects physiological sign data through the conductive electrode.

[0043] The present 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 any of the above methods for collecting physiological sign data are realized.

[0044] The present invention provides a wrist-worn device, which includes a processor, a rotating member, a conductive electrode, a physiological sign detection sensor, and a position detection sensor. The method for collecting physiological sign data includes: judging whether the rotating member rotates to a preset position according to the data collected by the position detection sensor; if so, determining a target application according to an application selection instruction input by a user, and connecting the conductive electrode to the physiological sign detection sensor corresponding to the target application, so that the physiological sign detection sensor corresponding to the target application collects physiological sign data through the conductive electrode.

[0045] The wrist-worn device applied in the present application includes a processor, a rotating member, a conductive electrode, a physiological sign detection sensor, and a position detection sensor. When it is determined that the rotating member rotates to a preset position by using the data collected by the position detection sensor, a target application is determined according to an application selection instruction input by a user, and the conductive electrode is controlled to be connected to the physiological sign detection sensor corresponding to the target application, and then the physiological sign detection sensor is used to collect physiological sign data. The present application collects physiological sign data according to the rotation position of the rotating member and the application selection instruction input by the user, reduces the time for finding the application to be started from the application list, and can improve the efficiency of collecting physiological sign data. The present application also provides a method for collecting physiological sign data and a storage medium at the same time, which have the above beneficial effects and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0047] Figure 1 The flowchart of a physiological sign data acquisition method provided by an embodiment of the present application;

[0048] Figure 2 The schematic diagram of the first electrode multiplexing circuit provided by an embodiment of the present application;

[0049] Figure 3 The schematic diagram of the second electrode multiplexing circuit provided by an embodiment of the present application;

[0050] Figure 4 The schematic diagram of the gear identification of a housing provided by an embodiment of the present application;

[0051] Figure 5 The schematic diagram of the connection mode of the conductive electrodes of a watch provided by an embodiment of the present application;

[0052] Figure 6 The flowchart of a method for acquiring physiological sign data by using a watch provided by an embodiment of the present application;

[0053] Figure 7 The flowchart of a method for acquiring impedance data by using a watch provided by an embodiment of the present application. Detailed implementation manners

[0054] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0055] Please refer to the following Figure 1 , Figure 1 The flowchart of a physiological sign data acquisition method provided by an embodiment of the present application.

[0056] The specific steps may include:

[0057] S101: Obtain the data collected by the position detection sensor.

[0058] This embodiment can be applied to the processor of a wrist-worn device. The processor can be a CPU (Central Processing Unit) or an MCU (Microcontroller Unit). The above wrist-worn device can also include a rotating member, a conductive electrode, a vital sign detection sensor, and a position detection sensor. The position detection sensor is used to detect the rotational position of the rotating member. The position detection sensor can be a Hall sensor or an optical tracking sensor. The above vital sign detection sensor is a sensor for detecting vital sign data. The above vital sign data includes: body temperature, body fat percentage, heart rate, blood pressure, etc. In this embodiment, a vital sign detection sensor for collecting the above vital sign data can be set in the wrist-worn device, such as: an ECG (electrocardiogram) sensor for detecting heart rate, a bio-impedance sensor (BIA, Bio-impedance analysis) for detecting body fat percentage, a temperature sensor for detecting body temperature, etc.

[0059] Among them, the rotating member is a member that can rotate relative to other components on the wrist-worn device. In this embodiment, data collected by the position detection sensor can be obtained according to a preset period, and then it is determined whether the rotating member rotates to a preset position according to the data collected by the position detection sensor.

[0060] S102: Judge whether the rotating member rotates to the preset position according to the data collected by the position detection sensor; if so, enter S103; if not, end the process.

[0061] Among them, if the rotating member rotates to the preset position, it means that the wrist-worn device needs to start the vital sign data collection application, and the operation steps of S103 can be entered; if the rotating member does not rotate to the preset position, the processor can enter the sleep state or start other functions, such as music playing, sleep detection, exercise monitoring, etc.

[0062] S103: Determine the target application according to the application selection instruction input by the user, and connect the conductive electrode to the vital sign detection sensor corresponding to the target application, so that the vital sign detection sensor corresponding to the target application can collect vital sign data through the conductive electrode.

[0063] Among them, after the rotating part rotates to the preset position, the processor can control the display screen to display an application selection interface, which may include multiple sign detection applications related to sign data collection, such as an ECG detection application, a body fat detection application, a body temperature measurement application, etc. The wrist-worn device also includes a touch screen and / or buttons; correspondingly, before determining the target application according to the application selection instruction input by the user, it is also possible to determine whether an application selection instruction input by the user is received according to the touch data and / or button trigger situation. After receiving the application selection instruction of the user for the above applications, the target application that needs to be started currently can be determined according to the application selection instruction. In this embodiment, the corresponding relationship between each target application and each sign detection sensor can be preset in advance, and after determining the target application selected for use, the conductive electrode is controlled to be connected to the sign detection sensor corresponding to the sign detection application. After connecting the conductive electrode to the sign detection sensor corresponding to the target application, it is also possible to determine whether the sign data collected by the sign detection sensor is valid data; if so, the sign data collected by the sign detection sensor is stored; if not, the display screen is controlled to display a prompt message; among them, the prompt message includes a hand pressing position prompt message. Sign data collection requires the user's hand to be in contact with the conductive electrode. If there is no contact or the contact is incorrect, the sign detection sensor will collect invalid data. The prompt message displayed in the above manner can improve the success rate of sign data collection.

[0064] The conductive electrode on the wrist-worn device can be in contact with the user's body. In this embodiment, there may also be an operation to enable the sign detection sensor that needs to be started. After being enabled, the sign detection sensor can collect corresponding sign data through the conductive electrode. For example, after starting the ECG detection application, the user can place the wrist and fingers on the conductive electrode so that the ECG sensor can collect the user's ECG data through the conductive electrode; after starting the body fat detection application, the user can place the wrist and fingers on the conductive electrode so that the bioimpedance sensor can collect the user's impedance data through the conductive electrode.

[0065] The wrist-worn device applied in this embodiment includes a processor, a rotating part, a conductive electrode, a sign detection sensor, and a position detection sensor. When it is determined that the rotating part rotates to the preset position by using the data collected by the position detection sensor, the target application is determined according to the application selection instruction input by the user, and the conductive electrode is controlled to be connected to the sign detection sensor corresponding to the target application, and then the sign detection sensor is used to collect sign data. This embodiment collects sign data according to the rotation position of the rotating part and the application selection instruction input by the user, reduces the time for searching for the application that needs to be started from the application list, and can improve the collection efficiency of sign data.

[0066] As for Figure 1For further introduction of the corresponding embodiments, a wrist-worn device may have multiple vital sign detection sensors, and multiple vital sign detection sensors may share conductive electrodes. Specifically, the conductive electrodes may include N (N≥1) shared electrodes. When the rotating member rotates to a preset position, the shared electrodes are connected to an electronic switch; the electronic switch is an operating unit that uses electronic circuits and power electronic devices to achieve circuit on / off. The electronic switch in the above wrist-worn device can control the connection and disconnection between the conductive electrodes and the vital sign detection sensors.

[0067] Correspondingly, the electronic switch can be controlled to connect the shared electrodes to the vital sign detection sensor corresponding to the target application. For example, if the target application is an ECG detection application, the processor of the wrist-worn device can send a first control instruction to the electronic switch to connect the shared electrodes to the ECG sensor. If the target application is a body fat detection application, the processor of the wrist-worn device can send a second control instruction to the electronic switch to connect the shared electrodes to the bio-impedance sensor.

[0068] After connecting the conductive electrodes to the vital sign detection sensor corresponding to the target application, the vital sign data collected by the vital sign detection sensor can also be received; if the vital sign data is ECG data, the electrocardiogram corresponding to the ECG data is displayed; if the vital sign data is impedance data, the body composition information of the user is calculated based on the impedance data.

[0069] Taking the vital sign detection sensors including an ECG sensor and a bio-impedance sensor as an example to illustrate the above embodiments, 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 electrodes include a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode.

[0070] Please refer to Figure 2 , Figure 2 which is the schematic diagram of the first electrode sharing circuit provided by the embodiments 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 a 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.

[0071] Please refer to Figure 3 , Figure 3Schematic diagram of the second electrode multiplexing circuit provided by the embodiments of the present application. The first conductive electrode, the second conductive electrode, the third conductive electrode, and the fourth electrode are all multiplexed electrodes. The ECG sensor can collect ECG data using any three of the first conductive electrode, the second conductive electrode, the third conductive electrode, and the fourth conductive electrode. The bioimpedance sensor can collect impedance data 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 In 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 bioimpedance sensor, the electronic switch can control the first conductive electrode, the second conductive electrode, and the third conductive electrode to be connected to the bioimpedance sensor respectively. The above 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. 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, improving the reliability of detection. The above first conductive elastic member and second conductive elastic member can be conductive elastic sheets or conductive elastic thimbles.

[0072] In Figure 2 and Figure 3 In the electrode multiplexing circuit shown, the processor can send a control signal to the electronic switch according to whether the rotating member rotates to the preset position, 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 bioimpedance sensor. Further, the 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.

[0073] If the above-mentioned wrist-worn device is a watch, the rotating part is the bezel, the third conductive electrode and the fourth conductive electrode are arranged on the upper surface of the rotating part, and an insulating part (such as an insulating film) is arranged between the third conductive electrode and the fourth conductive electrode. When measuring ECG data or impedance data, the user can place a finger on the upper surface of the rotating part.

[0074] The following uses a watch with a heart rate detection function and a body composition detection function in actual application to illustrate the process described in the above embodiments.

[0075] 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, a conductive electrode, and a bezel (equivalent to the rotating part above). The ECG sensor can measure ECG data through three conductive electrodes: LA (Left Arm, left arm), RA (Right Arm, right arm), and RLD (Right Leg Driver, right leg drive). 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, and after being processed by the processor, the user's electrocardiogram can be displayed on the display screen or the mobile phone. The bioimpedance sensor measures the human body impedance through four electrodes: FIR, FVR, FIL, and FVL. The processor combines the measured impedance data with information such as the user's age, gender, height, and weight, and can calculate physical signs information such as the user's body fat percentage, water percentage, and muscle mass through the body composition algorithm. Taking Figure 2 the shown structure 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 electrodes for measuring 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.

[0076] Furthermore, the case and the display screen of the watch can be fixed components on the watch. The bezel is assembled to the case through a positioning connection mechanism such as a buckle, and the bezel can rotate relative to the case 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 case to indicate the rotation position of the bezel relative to the case. Please refer to Figure 4 , Figure 4 which is a schematic diagram of a gear mark of a case provided by an embodiment of the present application. Each of the first position and the second position corresponds to a gear mark.Figure 4 Among them, 401 is the rotation identifier of the bezel, 402 is the gear identifier corresponding to the first position of the housing, 403 is the gear identifier corresponding to the second position, and 404 is the button of the housing.

[0077] 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 the magnetic induction intensity detected by the three-axis Hall sensor > the preset threshold T (considering 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 application. The physical sign detection application includes an ECG detection application and a body fat detection application. When the bezel rotates to the second position, the change in the 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.

[0078] After starting the ECG detection application, the processor controls the conductive electrode switching circuit, 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 picture 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 fat detection application, 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 a body composition algorithm to calculate the current body composition information of the user from the impedance data.

[0079] 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. A conductive film that is connected is plated on the outer surface and the inner surface of the heart rate lens sapphire glass on the bottom case of the watch. 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 skin of the wrist. The inner surface of the heart rate lens is connected to the main board through a conductive elastic member with good electrical conductivity or other conductive materials. The ECG sensor, the bio-impedance sensor, and related circuit components are located on the main board. In this way, an electronic path is formed between the skin of the wrist, the first conductive electrode, the second conductive electrode, 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. 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 a 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 skin of the finger, the third conductive electrode, the fourth conductive electrode, the ECG sensor, and the bio-impedance sensor.

[0080] As a feasible implementation manner, the position detection sensor in the above-mentioned 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 the 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 threshold of the magnetic field change amount. The minimum change amount of the single-axis magnetic induction intensity that the three-axis Hall sensor can detect is 3 uT.

[0081] Further, in this embodiment, magnets can be embedded in the bezel according to the number and positions of the triggered gears, and 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 the position corresponding to 9 o'clock, and the second position is 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 11 o'clock, and the second gear marking corresponding to 7 o'clock. The three-axis Hall sensors 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 sensors. 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 XYZ three axes when the three-axis Hall sensors detect that the rotation markings rotate to the default position, the first position, and the second position respectively. In this embodiment, 1 large magnet can be embedded at the 9 o'clock position of the bezel, and multiple small magnets can be embedded in the range 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 XYZ three 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 XYZ three 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 sensors 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.

[0082] Please refer to Figure 6 , Figure 6The flowchart of a method for collecting physiological 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 the output of an 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 physiological data collection process; if the bezel rotates to the second position, it enters user-defined functions, such as outdoor running, displaying payment QR codes, 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.

[0083] The physiological data collection process includes the ECG data collection process implemented by the ECG detection application and the impedance data collection process implemented by the body fat detection application. This embodiment can determine whether to enter the ECG data collection process or the impedance data collection process according to the user's selection.

[0084] As a feasible implementation manner, the ECG data collection process includes the following steps:

[0085] Step A1: 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.

[0086] Step A2: The processor enables the ECG sensor.

[0087] Step A3: The processor saves the ECG data collected by the ECG sensor in the memory.

[0088] Step A4: The processor draws an electrocardiogram waveform on the display screen according to the ECG data in the memory.

[0089] Step A5: 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.

[0090] Step A6: 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.

[0091] Step A7: The processor turns off the electronic switching switch and the ECG sensor.

[0092] As a feasible implementation manner, the impedance data collection process includes the following steps:

[0093] Step B1: 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.

[0094] Step B2: The processor enables the bio-impedance sensor.

[0095] Step B3: The processor controls the display screen to remind the user to press the thumb and index finger on two electrodes of the bezel.

[0096] Step B4: The processor saves the impedance data collected by the bio-impedance sensor in the memory.

[0097] Before step B4, there may also be an operation to determine whether the collected impedance data is valid. If it is valid, proceed to step B4; if it is not valid, remind the user again to press the thumb and index finger on two electrodes of the bezel.

[0098] After the amount of data saved in the memory meets the algorithm requirements, the processor runs the body composition algorithm to calculate the user's current body composition information.

[0099] Step B6: The processor controls the display screen to indicate that the collection of the current body composition data is completed, and asks the user to rotate the bezel back to the default position.

[0100] After the processor determines that the bezel has been rotated back to the default position, it reminds the user that the current measurement is completed and displays the results of the current body composition measurement.

[0101] Step B8: The processor turns off the electronic switch and the bio-impedance sensor.

[0102] In the above embodiment, the bezel of the watch can be rotated. The bezel is made of a conductive material and can perform the function of a conductive electrode. The internal part of the watch detects the rotation position of the bezel through a sensor. By rotating the bezel to a specified position, the user can connect the conductive electrodes on the bezel to the ECG sensor inside the watch, quickly start the corresponding vital sign data measurement application, and improve the efficiency of collecting vital sign data.

[0103] Users who use the above watch for the first time may not know that they need to touch the conductive electrodes with their fingers to collect vital sign data. Therefore, when the bezel is not rotated to the preset position and a user input for collecting vital sign data is received, the conductive electrodes are controlled to be connected to the corresponding vital sign detection sensor; based on the data collected by the position detection sensor, it is determined whether the rotating part has been rotated to the preset position; if the rotating part has been rotated to the preset position, it is determined whether the vital sign data collected by the vital sign detection sensor is valid data; if the rotating part has not been rotated to the preset position, the user is prompted to rotate the rotating part to the preset position; if the vital sign data is valid data, the vital sign data collected by the vital sign detection sensor is stored; if the vital sign data is not valid data, the user is prompted to touch the conductive electrodes.

[0104] Please refer to Figure 7 , Figure 7 , which is a flowchart of a method for collecting impedance data using a watch provided by an embodiment of the present application, specifically including the following steps:

[0105] S701: The user clicks the icon of the body fat detection application through touch screen or button operation.

[0106] S702: The processor starts the body fat detection application.

[0107] S703: 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.

[0108] S704: The processor enables the bio-impedance sensor.

[0109] S705: The processor controls the display screen to remind the user to press the thumb and index finger on two electrodes of the bezel and rotate the bezel to a preset position.

[0110] S706: The processor determines whether the bezel has rotated to the preset position through the Hall sensor; if so, go to S707; if not, go to S705.

[0111] S707: The processor controls the bio-impedance sensor to enter the measurement mode and determines the validity of the collected data; if so, go to S708; if not, go to S705.

[0112] S708: The processor saves the impedance data collected by the bio-impedance sensor in the memory.

[0113] S709: After the amount of data saved in the memory meets the algorithm requirements, the processor runs the body composition algorithm to calculate the user's current body composition information.

[0114] S710: The processor controls the display screen to prompt that the collection of this body composition data is completed, and asks the user to restore the rotated bezel to the default gear.

[0115] S711: After the processor determines that the bezel has been restored to the default gear, it reminds the user that this measurement is completed and displays the result of this collection.

[0116] S712: The processor turns off the electronic switch.

[0117] S713: The processor turns off the bio-impedance sensor.

[0118] The above embodiment can guide the user to perform body composition detection after the user selects the body fat detection application, and can help users who are not familiar with the body sign data collection function to complete impedance data collection, improving the user experience.

[0119] The embodiment of the present application further provides a wrist-worn device, which includes a processor, a rotating member, a conductive electrode, a physiological sign detection sensor, and a position detection sensor. The processor is configured to:

[0120] Judge whether the rotating member rotates to a preset position according to the data collected by the position detection sensor;

[0121] If so, determine a target application according to the application selection instruction input by the user, and connect the conductive electrode to the physiological sign detection sensor corresponding to the target application, so that the physiological sign detection sensor corresponding to the target application can collect physiological sign data through the conductive electrode.

[0122] Furthermore, the wrist-worn device may further include a memory, and the above steps may be implemented by the processor calling a computer program in the memory.

[0123] The wrist-worn device applied in this embodiment includes a processor, a rotating member, a conductive electrode, a physiological sign detection sensor, and a position detection sensor. When it is determined that the rotating member rotates to the preset position by using the data collected by the position detection sensor, a target application is determined according to the application selection instruction input by the user, and the conductive electrode is controlled to be connected to the physiological sign detection sensor corresponding to the target application, and then the physiological sign detection sensor is used to collect physiological sign data. This embodiment collects physiological sign data according to the rotation position of the rotating member and the application selection instruction input by the user, reduces the time for finding the application to be started from the application list, and can improve the collection efficiency of physiological sign data.

[0124] Furthermore, the conductive electrode includes at least one multiplexing electrode; when the rotating member rotates to the preset position, the multiplexing electrode is connected to the electronic switch;

[0125] Correspondingly, the process of the processor connecting the conductive electrode to the physiological sign detection sensor corresponding to the target application includes: controlling the electronic switch to connect the multiplexing electrode to the physiological sign detection sensor corresponding to the target application.

[0126] Furthermore, the process of the processor connecting the conductive electrode to the physiological sign detection sensor corresponding to the target application includes: sending a first control instruction to the electronic switch to make the electronic switch connect the multiplexing electrode to the ECG sensor.

[0127] Furthermore, if the target application is a body fat detection application, the process of the processor connecting the conductive electrode to the physiological sign detection sensor corresponding to the target application includes: sending a second control instruction to the electronic switch to make the electronic switch connect the multiplexing electrode to the bioimpedance sensor.

[0128] Further, after connecting the conductive electrode to the vital sign detection sensor corresponding to the target application, the processor is further configured to determine whether the vital sign data collected by the vital sign detection sensor is valid data; if so, store the vital sign data collected by the vital sign detection sensor; if not, control the display screen to display a prompt message; wherein, the prompt message includes a hand pressing position prompt message.

[0129] Further, the wrist-worn device further includes a touch screen and / or buttons;

[0130] Correspondingly, before determining the target application according to the application selection instruction input by the user, the processor is further configured to determine whether an application selection instruction input by the user is received according to the touch data and / or button triggering situation.

[0131] Further, after connecting the conductive electrode to the vital sign detection sensor corresponding to the target application, the processor is further configured to receive the vital sign data collected by the vital sign detection sensor; and is further configured to display an electrocardiogram corresponding to the ECG data if the vital sign data is ECG data; and is further configured to calculate the body composition information of the user according to the impedance data if the vital sign data is impedance data.

[0132] Further, the vital sign detection sensor includes an ECG sensor and a bioimpedance sensor;

[0133] The conductive electrode includes a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode; the ECG sensor and the bioimpedance sensor share the first conductive electrode, the second conductive electrode, and the third conductive electrode, and the fourth conductive electrode is connected to the bioimpedance sensor when the rotating member rotates to a preset position.

[0134] Further, the first conductive electrode and the second conductive electrode are disposed at the wearing contact portion of the wrist-worn device, and the third conductive electrode and the fourth conductive electrode are disposed at the non-wearing contact portion of the wrist-worn device.

[0135] Further, the wrist-worn device is a watch, the rotating member is a bezel, the third conductive electrode and the fourth conductive electrode are disposed on the upper surface of the rotating member, and an insulating member is disposed between the third conductive electrode and the fourth conductive electrode.

[0136] 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 bioimpedance sensor, and the housing of the wrist-worn device is provided with a first opening and a second opening;

[0137] 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.

[0138] Further, the processor is further configured to control the conductive electrode to communicate with the corresponding vital sign detection sensor if a vital sign data acquisition instruction input by the user is received; to determine whether the rotating member rotates to a preset position according to the data collected by the position detection sensor; to determine whether the vital sign data collected by the vital sign detection sensor is valid data if the rotating member rotates to the preset position; to prompt the user to rotate the rotating member to the preset position if the rotating member does not rotate to the preset position; to store the vital sign data collected by the vital sign detection sensor if the vital sign data is valid data; and to prompt the user to touch the conductive electrode if the vital sign data is not valid data.

[0139] An embodiment of the present application further provides a vital sign data acquisition system, which is applied to a processor of a wrist-worn device. The wrist-worn device further includes a rotating member, a conductive electrode, a vital sign detection sensor, and a position detection sensor. The vital sign data acquisition system includes:

[0140] A position detection module, configured to determine whether the rotating member rotates to a preset position according to the data collected by the position detection sensor;

[0141] An acquisition module, configured to determine a target application according to an application selection instruction input by the user if the rotating member rotates to the preset position, and to connect the conductive electrode to the vital sign detection sensor corresponding to the target application, so that the vital sign detection sensor corresponding to the target application collects vital sign data through the conductive electrode.

[0142] Further, the conductive electrode includes at least one multiplexed electrode; the multiplexed electrode is connected to an electronic switch when the rotating member rotates to the preset position;

[0143] Correspondingly, the process of the acquisition module connecting the conductive electrode to the vital sign detection sensor corresponding to the target application includes: controlling the electronic switch to connect the multiplexed electrode to the vital sign detection sensor corresponding to the target application.

[0144] Further, if the target application is an ECG detection application, the process of the acquisition module connecting the conductive electrode to the vital sign detection sensor corresponding to the target application includes: sending a first control instruction to the electronic switch to cause the electronic switch to connect the multiplexed electrode to the ECG sensor.

[0145] Further, if the target application is a body fat detection application, the process of the acquisition module connecting the conductive electrode to the vital sign detection sensor corresponding to the target application includes: sending a second control instruction to the electronic switch to cause the electronic switch to connect the multiplexed electrode to the bio-impedance sensor.

[0146] Further, it further includes:

[0147] A data storage module, which is configured to determine whether the vital sign data collected by the vital sign detection sensor is valid data after connecting the conductive electrode to the vital sign detection sensor corresponding to the target application; if so, store the vital sign data collected by the vital sign detection sensor; if not, control the display screen to display a prompt message; wherein, the prompt message includes a hand pressing position prompt message.

[0148] Further, the wrist-worn device further includes a touch screen and / or a button;

[0149] Correspondingly, it further includes:

[0150] An instruction detection module, which is configured to determine whether a user input application selection instruction is received according to the touch data and / or the button trigger situation before determining the target application according to the application selection instruction input by the user.

[0151] Further, it further includes:

[0152] A data processing module, which is configured to receive the vital sign data collected by the vital sign detection sensor after connecting the conductive electrode to the vital sign detection sensor corresponding to the target application; is further configured to display the electrocardiogram corresponding to the ECG data if the vital sign data is ECG data; is further configured to calculate the body composition information of the user according to the impedance data if the vital sign data is impedance data.

[0153] Further, the vital sign detection sensor includes an ECG sensor and a bioimpedance sensor;

[0154] The conductive electrodes include a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode; the ECG sensor and the bioimpedance sensor share the first conductive electrode, the second conductive electrode, and the third conductive electrode, and the fourth conductive electrode is connected to the bioimpedance sensor when the rotating member rotates to a preset position.

[0155] Further, the first conductive electrode and the second conductive electrode are arranged at the wearing contact part of the wrist-worn device, and the third conductive electrode and the fourth conductive electrode are arranged at the non-wearing contact part of the wrist-worn device.

[0156] Further, the wrist-worn device is a watch, the rotating member is a bezel, the third conductive electrode and the fourth conductive electrode are arranged on the upper surface of the rotating member, and an insulating member is arranged between the third conductive electrode and the fourth conductive electrode.

[0157] 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 bioimpedance sensor, and the housing of the wrist-worn device is provided with a first opening and a second opening;

[0158] 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.

[0159] Furthermore, it further includes:

[0160] An auxiliary detection module, which is configured to control the connection between the conductive electrode and the corresponding physical sign detection sensor if a physical sign data acquisition instruction input by the user is received; is further configured to determine whether the rotating member rotates to the preset position according to the data collected by the position detection sensor; is further configured to determine whether the physical sign data collected by the physical sign detection sensor is valid data if the rotating member rotates to the preset position; is further configured to prompt the user to rotate the rotating member to the preset position if the rotating member does not rotate to the preset position; is further configured to store the physical sign data collected by the physical sign detection sensor if the physical sign data is valid data; is further configured to prompt the user to touch the conductive electrode if the physical sign data is not valid data.

[0161] Since the embodiments of the device and system parts correspond to the embodiments of the method part, please refer to the description of the embodiments of the method part for the embodiments of the device and system parts, and details will not be described here for the moment.

[0162] This application also provides a storage medium, on which a computer program is stored, and when the computer program is executed, the steps provided in the above embodiments can be implemented. The storage medium may include: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or optical discs that can store program codes.

[0163] The embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description in the method part. 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.

[0164] 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, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A wrist-worn device, characterized in that, Comprising: A processor, a rotating member, conductive electrodes, a vital sign detection sensor, and a position detection sensor, wherein the processor is configured to: Judge whether the rotating member rotates to a preset position according to the data collected by the position detection sensor; If so, determine a target application according to an application selection instruction input by a user, and connect the conductive electrodes to the vital sign detection sensor corresponding to the target application, so that the vital sign detection sensor corresponding to the target application collects vital sign data through the conductive electrodes; The vital sign detection sensor includes an ECG sensor and a bioimpedance sensor; The conductive electrodes include a first conductive electrode, a second conductive electrode, a third conductive electrode, and a fourth conductive electrode; when the rotating member rotates to the preset position, the fourth conductive electrode is connected to the bioimpedance sensor; the first conductive electrode, the second conductive electrode, and the third conductive electrode are all multiplexed electrodes; when the rotating member rotates to the preset position, all the multiplexed electrodes are connected to an electronic switch; The process by which the processor connects the conductive electrodes to the vital sign detection sensor corresponding to the target application includes: controlling the electronic switch to connect all the multiplexed electrodes to the vital sign detection sensor corresponding to the target application; 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; the first conductive electrode and the second conductive electrode are arranged at the wearing contact part of the wrist-worn device, and the third conductive electrode and the fourth conductive electrode are arranged at the non-wearing contact part of the wrist-worn device; the wrist-worn device is a watch, the rotating member is a bezel, the third conductive electrode and the fourth conductive electrode are arranged on the upper surface of the rotating member, and an insulating member is arranged between the third conductive electrode and the fourth conductive electrode.

2. The wrist-worn device according to claim 1, wherein If the target application is an ECG detection application, the process by which the processor connects the conductive electrodes to the vital sign detection sensor corresponding to the target application includes: Sending a first control instruction to the electronic switch so that the electronic switch connects all the multiplexed electrodes to the ECG sensor.

3. The wrist-worn device according to claim 1, characterized in that, If the target application is a body fat detection application, the process by which the processor connects the conductive electrodes to the vital sign detection sensor corresponding to the target application includes: Sending a second control instruction to the electronic switch so that the electronic switch connects all the multiplexed electrodes to the bioimpedance sensor.

4. The wrist-worn device according to claim 1, wherein After connecting the conductive electrodes to the vital sign detection sensor corresponding to the target application, the processor is further configured to: Judge whether the vital sign data collected by the vital sign detection sensor is valid data; If so, store the vital sign data collected by the vital sign detection sensor; Otherwise, control the display screen to display a prompt message; wherein, the prompt message includes hand pressing position prompt information.

5. The wrist-worn device according to claim 1, characterized in that, The wrist-worn device further includes a touch screen and / or buttons; Correspondingly, before determining the target application according to the application selection instruction input by the user, the processor is further configured to: Judge whether the application selection instruction input by the user is received according to the touch data and / or button trigger situation.

6. The wrist-worn device according to claim 1, wherein After connecting the conductive electrode to the vital sign detection sensor corresponding to the target application, the processor is further configured to: Receive the vital sign data collected by the vital sign detection sensor; If the vital sign data is ECG data, display the electrocardiogram corresponding to the ECG data; If the vital sign data is impedance data, calculate the body composition information of the user according to the impedance data.

7. The wrist-worn device according to claim 1, wherein, The processor is further configured to: If a vital sign data collection instruction input by the user is received, control the conductive electrode to be connected to the corresponding vital sign detection sensor; Judge whether the rotating member rotates to the preset position according to the data collected by the position detection sensor; If the rotating member rotates to the preset position, judge whether the vital sign data collected by the vital sign detection sensor is valid data; If the rotating member does not rotate to the preset position, prompt the user to rotate the rotating member to the preset position; If the vital sign data is valid data, store the vital sign data collected by the vital sign detection sensor; If the vital sign data is not valid data, prompt the user to touch the conductive electrode.

8. A method for collecting physical sign data, characterized in that, Applied to the wrist-worn device according to any one of claims 1 to 7, the vital sign data collection method includes: Judge whether the rotating member rotates to a preset position according to the data collected by the position detection sensor; If so, determine the target application according to the application selection instruction input by the user, and connect the conductive electrode to the vital sign detection sensor corresponding to the target application, so that the vital sign detection sensor corresponding to the target application collects vital sign data through the conductive electrode.

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