WO2023159846A1

WO2023159846A1 - Wrist-worn device, and physical sign data collection method

Info

Publication number: WO2023159846A1
Application number: PCT/CN2022/103093
Authority: WO
Inventors: 周亚楠; 任建雷; 郑金山; 隋承浩; 潘俊杰; 李欢; 史玉龙
Original assignee: 歌尔科技有限公司
Priority date: 2022-02-28
Filing date: 2022-06-30
Publication date: 2023-08-31
Also published as: CN114533021A

Abstract

Disclosed in the present application is a wrist-worn device. The wrist-worn device comprises 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 used for: determining whether a body composition measurement instruction input by a user is received; according to data collected by the position detection sensor, determining whether the rotating member is rotated to a preset position; and if the body composition measurement instruction input by the user is not received and the rotating member is rotated to the preset position, controlling the electronic switch to connect the conductive electrode to the ECG sensor, and collecting ECG data by using the ECG sensor and by means of the conductive electrode. The present application can improve the convenience of an ECG data collection process. Further disclosed in the present application is a physical sign data collection method, which has the above beneficial effect.

Description

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

This application claims the priority of the Chinese patent application with the application number 202210192737.2 and the title of the invention "a wrist-worn device and physical sign data collection method" submitted to the China Patent Office on February 28, 2022, the entire contents of which are incorporated herein by reference In this application.

technical field

The present application relates to the field of smart wearable devices, in particular to a wrist-worn device and a method for collecting vital sign data.

Background technique

With the rapid improvement of informatization level, wrist-worn devices such as smart bracelets and smart watches are becoming more and more popular. It has become a rigid demand for users to use wrist-worn devices to measure human health indicators such as heart rate, blood oxygen, and ECG.

In related technologies, if the user needs to collect ECG data, the user needs to wake up the wrist-worn device first, find the corresponding APP application on the wrist-worn device, and click to open the APP to start measurement. The above measurement is cumbersome, especially when the consumer has symptoms of heart disease and needs to measure the ECG data as soon as possible. The complicated operation will easily take too much time and miss the best time to capture the ECG data when the heart attack occurs.

Therefore, how to improve the convenience of the ECG data collection process is a technical problem currently to be solved by those skilled in the art.

Contents of the invention

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

In order to solve the above technical problems, the present 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, and the processor is used for:

Determine whether the body composition detection instruction input by the user is received;

judging whether the rotating member has rotated 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 is rotated to the preset position, the electronic switch is controlled to connect the conductive electrode with the ECG sensor, and the ECG A sensor collects ECG data through the conductive electrodes.

Optionally, the processor is also used for:

If a body composition detection instruction input by the user is received and the rotating member rotates to the preset position, the electronic switch is controlled to communicate the conductive electrode with the bioimpedance sensor, and the bioimpedance sensor is used to pass through the The conductive electrodes are used to collect impedance data.

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 the electronic switch;

Correspondingly, the process of the processor controlling the electronic switch to communicate the conductive electrode with the ECG sensor includes: controlling the electronic switch to communicate the multiplexing electrode with the ECG sensor;

Correspondingly, the process of the processor controlling the electronic switch to connect the conductive electrode with the bioimpedance sensor includes: controlling the electronic switch to connect the multiplexing electrode with the bioimpedance sensor.

Optionally, 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 As for the multiplexing electrode, when the rotating member rotates to the preset position, the fourth conductive electrode communicates with the bioimpedance sensor.

Optionally, the first conductive electrode and the second conductive electrode are arranged on the wearing contact part of the wrist-worn device;

The third conductive electrode and the fourth conductive electrode are arranged on the non-wearing contact part of the wrist-worn device.

Optionally, the wrist-worn device further includes a main board, the main board is provided with a first conductive elastic member connected with the electronic switch, and a second conductive elastic member connected with the bio-impedance sensor, the wrist-worn The casing of the 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 to connect with the third conductive electrode, and the second conductive elastic member passes through the first conductive elastic member. The two openings are connected to the fourth conductive electrode.

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

Optionally, a display screen is also included, and the processor is also used for:

If a body composition detection instruction input by a user is received, controlling the electronic switch to connect the conductive electrode with the bioimpedance sensor;

judging whether the impedance data collected by the bio-impedance sensor is valid data;

If not, control the display screen to display prompt information; wherein, the prompt information includes information prompting the position of the finger to be pressed, and/or information prompting to rotate the rotating member to the preset position.

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

The present application also provides a method for collecting sign data, which is applied to a processor of a wrist-worn device, and the wrist-worn device also includes a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bio-impedance sensor, and a position detection sensor. Sign data collection methods include:

The present application also provides a storage medium, where computer-executable instructions are stored in the storage medium, and when the computer-executable instructions are loaded and executed by a processor, the steps implemented in the above-mentioned vital sign data collection method are realized.

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 used to: determine whether a body composition detection input by a user is received instruction; 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, Then control the electronic switch to connect the conductive electrode with the ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrode.

In the present application, the data collected by the position detection sensor is used to determine the rotational position of the rotating member. When the rotating member rotates to a preset position, it indicates that the user has a demand for collecting physical sign data. The present application can also judge whether the body composition detection instruction input by the user is received, and if the body composition detection instruction input by the user is not received, and the rotating member rotates to a preset position, control the conductive electrode to communicate with the ECG sensor, and then use An ECG sensor collects ECG data through the conductive electrodes. When the user's heart feels unwell, the ECG data collection can be realized by adjusting the rotating member, which can improve the convenience of the ECG data collection process. At the same time, the present application also provides a method for collecting physical sign data and a storage medium, which have the above-mentioned beneficial effects and will not be repeated here.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only The accompanying drawings are a part of this application, and those skilled in the art can obtain other drawings according to the provided drawings without creative work.

Fig. 1 is the flow chart of a kind of ECG data acquisition method provided by the embodiment of the present application;

Fig. 2 is a schematic diagram of the first electrode multiplexing circuit provided by the embodiment of the present application;

Fig. 3 is a schematic diagram of the second electrode multiplexing circuit provided by the embodiment of the present application;

Fig. 4 is a schematic diagram of a gear mark of a housing provided by an embodiment of the present application;

Fig. 5 is a schematic diagram of a conductive electrode connection method of a watch provided in the embodiment of the present application;

FIG. 6 is a flow chart of a method for collecting physical sign data using a watch provided in an embodiment of the present application;

Fig. 7 is a kind of watch-based ECG data acquisition flowchart provided by the embodiment of the present application;

FIG. 8 is a flow chart of a method for collecting body composition information by using a watch provided in an embodiment of the present application.

Detailed ways

In order to make the purposes, 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 in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

An embodiment of the present application provides a wrist-worn device, including a processor, a rotating member, a conductive electrode, an electronic switch, an ECG (electrocardiogram, 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, central processing unit) or MCU (Microcontroller Unit; micro control unit); The position detection sensor is used to detect the rotational position of the rotating member, and the position detection sensor can be a Hall sensor or an optical tracking sensor. The electronic switch is an operating unit that uses electronic circuits and power electronic devices to realize circuit on-off. The electronic switch in the above-mentioned wrist-worn device can control the connection and disconnection of the conductive electrode and the ECG sensor, and can also control the connection between the conductive electrode and the bioimpedance sensor. with disconnect.

Please refer to Fig. 1. Fig. 1 is a flow chart of a method for collecting ECG data provided by the embodiment of the present application. The execution subject of this embodiment may be the processor of the wrist-worn device. The steps to implement include:

S101: Determine whether a body composition detection instruction input by a user is received.

Among them, the body composition detection command is used to detect the user's impedance data, the user can input the body composition detection command through the button or touch part of the wrist-worn device, and the user can also input the body composition detection command through other terminals (such as mobile phone or remote control) .

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

In this embodiment, the data collected by the position detection sensor can be acquired according to a preset period, and then it can be determined whether the rotating member rotates to the preset position according to the data collected by the position detection sensor. If the rotating part rotates to the preset position, it means that the wrist-worn device needs to collect physical sign 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, exercise monitoring etc.

S103: If no body composition detection instruction input by the user is received and the rotating member rotates to a preset position, control the electronic switch to connect the conductive electrodes to the ECG sensor, and use the ECG sensor to collect ECG data through the conductive electrodes.

If the body composition detection instruction input by the user is not received, and the rotating member rotates to the preset position, it means that the user may have heart discomfort at this time, and can directly enter the ECG data collection process at this time. 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. In this embodiment, there may also be an operation of enabling the ECG sensor, and the enabled ECG sensor may collect corresponding ECG data through the conductive electrodes. Specifically, the user can place the wrist and fingers on the conductive electrodes, so that the ECG sensor collects the user's ECG data through the conductive electrodes.

In this embodiment, the data collected by the position detection sensor is used to determine the rotational position of the rotating member. When the rotating member rotates to a preset position, it indicates that the user has a demand for collecting physical sign data. This embodiment can also judge 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 member rotates to the preset position, the conductive electrode is controlled to communicate with the ECG sensor, and then the ECG sensor is used to detect the body composition. The sensor collects ECG data through conductive electrodes. When the user's heart feels unwell, the ECG data collection can be realized by adjusting the rotating member, which can improve the convenience of the ECG data collection process.

As a further introduction to the above-mentioned embodiment, the above-mentioned processor can also realize the following operations: if a body composition detection instruction input by the user is received, and the rotating member rotates to a preset position, control the electronic switch to communicate the conductive electrode with the bio-impedance sensor , and use a bioimpedance sensor to collect impedance data through conductive electrodes. In this embodiment, there may also be an operation of enabling the bioimpedance sensor, and the enabled bioimpedance sensor can collect corresponding impedance data through the conductive electrodes. Specifically, the user may place the wrist and fingers on the conductive electrodes, so that the bio-impedance sensor collects the user's impedance data through the conductive electrodes.

This embodiment does not limit the sequence of the two actions of "receiving the body composition detection instruction" and "rotating the rotating member to a preset position" in the above impedance data collection process. Specifically, in this embodiment, the first delay time can be set in advance. If the action of "rotating the rotating member to the preset position" is executed first, it can be judged whether the response is received within the first delay time after the rotating member rotates to the preset position. Body composition detection command, if so, enter the operation process of "controlling the electronic switch to connect the conductive electrode with the bioimpedance sensor, and use the bioimpedance sensor to collect impedance data through the conductive electrode", if otherwise, enter the operation process of "controlling the electronic switch to connect the conductive electrode with the ECG sensor Connected, and use the ECG sensor to collect ECG data through conductive electrodes" operation process. In this embodiment, the second delay time can also be preset. If the action of "receiving the body composition detection instruction" is executed first, it can be judged whether the rotating member rotates to the preset position within the second delay time after receiving the body composition detection instruction. , if so, enter the operation process of "controlling the electronic switch to connect the conductive electrode with the bioimpedance sensor, and using the bioimpedance sensor to collect impedance data through the conductive electrode", if otherwise, remind the user to rotate the rotating part, or determine that the received body composition detection command is Invalid command.

Further, the ECG sensor and the bioimpedance sensor can reuse conductive electrodes, thereby reducing the number of conductive electrodes in the wrist-worn device. For example, the conductive electrodes include at least one multiplexing electrode; when the rotating member rotates to a preset position, the multiplexing electrode is connected to the electronic switch.

On the basis of using the multiplexing electrodes, the processor can control the electronic switch to connect the multiplexing electrodes with the ECG sensor; the processor can also control the electronic switch to connect the multiplexing electrodes with the bioimpedance sensor.

Take ECG sensor needs 3 conductive electrodes to collect ECG data, and bio-impedance sensor needs 4 conductive electrodes to collect impedance data as an example, the conductive electrodes include the first conductive electrode, the second conductive electrode, the third conductive electrode and the fourth conductive electrode. electrode.

Please refer to Figure 2. Figure 2 is a schematic diagram of the first electrode multiplexing circuit provided by the embodiment of the present application. The first conductive electrode, the second conductive electrode and the third conductive electrode are all multiplexing electrodes. When the position is set, the fourth conductive electrode communicates with the bioimpedance 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 bioimpedance sensor can use the first conductive electrode, the second conductive electrode, the third conductive electrode and the fourth conductive electrode to collect impedance data.

Please refer to FIG. 3 . FIG. 3 is a 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 use any three conductive electrodes in the first conductive electrode, the second conductive electrode, the third conductive electrode and the fourth conductive electrode to collect ECG data, and the bioimpedance sensor can use the first conductive electrode, the second conductive electrode, the The third conductive electrode and the fourth conductive electrode collect impedance data. As a feasible implementation, in the manner shown in Figure 3, if it is necessary to control the communication between the conductive electrodes and the ECG sensor, the electronic switch can control the first conductive electrode, the second conductive electrode and the third conductive electrode to communicate with the ECG sensor respectively. Communication; if it is necessary to control the communication between the conductive electrodes and the bioimpedance sensor, the electronic switch can control the first conductive electrode, the second conductive electrode and the third conductive electrode to communicate with the bioimpedance sensor respectively. The above-mentioned wrist-worn device also 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 with 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 a preset position, the first conductive elastic member is connected to the third conductive electrode through the first opening, and the second conductive elastic member is connected to the fourth conductive electrode through the second opening. Through the above method, the vital sign data sensor can only collect data through the conductive electrodes when the rotating member rotates to a preset position, which improves the reliability of detection. The above-mentioned first conductive elastic member and second conductive elastic member may be conductive elastic pieces, or conductive elastic thimbles.

In the electrode multiplexing circuit shown in Figure 2 and Figure 3, the processor can send a control signal to the electronic switch according to the rotational 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), and then adjust the connection between the conductive electrode and the ECG sensor and bioimpedance sensor. Further, the above-mentioned first conductive electrode and second conductive electrode can be arranged on 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 on the wrist-worn device Non-wearing contact parts, such as rotating parts, buttons, wristbands, upper surface of the upper case, lower surface of the upper case, etc. The wearing contact part is the part where the wrist-worn device is in contact with 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 is not in contact with the user's body when the wrist-worn device is worn.

As a further introduction to the embodiment corresponding to FIG. 1 , the steps implemented when the processor invokes the computer program in the memory further include: if a custom instruction input by the user is received, updating the target operation corresponding to the preset position 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 a preset position.

Through the above method, the user can customize the operation realized when the rotating member rotates to the preset position. For example, if the user updates the target operation corresponding to the preset position to an ECG data collection operation through a user-defined instruction, if no body composition detection instruction input by the user is received, and the rotating member rotates to the preset position, the operations to be performed include: The electronic switch is controlled to communicate the conductive electrodes with the ECG sensor, and the ECG sensor is used to collect ECG data through the conductive electrodes. If the user updates the target operation corresponding to the preset position to the impedance data acquisition operation through a user-defined instruction, and if the rotating member rotates to the preset position, the operations to be performed include: controlling the electronic switch to connect the conductive electrode with the bioimpedance sensor, and using Bioimpedance sensors collect impedance data through conductive electrodes. If the user updates the target operation corresponding to the preset position to the body temperature data collection operation through a user-defined instruction, and if the rotating member rotates to the preset position, the operations to be performed include: controlling the electronic switch to connect the conductive electrode with the temperature sensor, and using the temperature The sensor collects body temperature data through conductive electrodes.

As a feasible implementation, the steps implemented when the processor invokes 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 with the bioimpedance sensor; judging the bioimpedance Whether the impedance data collected by the sensor is valid data; if so, control the memory to store the impedance data collected by the bioimpedance sensor; if not, control the display screen to display prompt information; wherein, the prompt information includes information that prompts the finger to press the position, and/or , prompting information to rotate the rotating member to the preset position. The above embodiment can guide the user to detect the impedance data after the user inputs the body composition detection instruction, and can help the user who is not familiar with the impedance data collection function to complete the operation and improve the user experience.

The above embodiment will be described below through a wrist watch with a physical sign data detection function in practical application. When the above-mentioned wrist-worn device can be a watch, the rotating part is the bezel of the watch.

The aforementioned 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 above rotating member). 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 driver). Two conductive electrodes LA and RLD are respectively placed on the bottom case of the watch, and a conductive electrode RA is placed on the bezel or the button. For example, if the user wears a watch with his left hand, the left wrist is in contact with the conductive electrodes LA and RLD, and the right finger presses the conductive electrode RA on the watch frame or button, so that the ECG sensor can measure the user's ECG data, which can be displayed on the display after being processed by the processor. The user's ECG is displayed on the screen or on the mobile phone. The bioimpedance sensor measures body impedance through four electrodes: FIR, FVR, FIL and FVL. Based on the measured impedance data, combined with the user's age, gender, height, weight and other information, the processor can calculate the user's body fat percentage, water percentage, muscle mass and other physical signs information through the body composition algorithm. Taking the structure shown in FIG. 2 as an example, RLD and FIL may correspond to the first conductive electrode, LA and FVL may correspond to the second conductive electrode, RA and FIR may correspond to the third conductive electrode, and FVR may correspond to the fourth conductive electrode. The first conductive electrode, the second conductive electrode and the third conductive electrode can be used as the measurement electrodes of ECG data and impedance data at the same time. The sensor is in communication with, or communicates with, the bioimpedance sensor.

Further, the case and display screen of the watch can be fixed components on the watch, and 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 may be provided on the bezel to indicate the rotation position of the bezel; a gear position mark may be provided on the cover glass of the display screen or the casing to indicate the rotation position of the bezel relative to the casing. Please refer to Fig. 4, Fig. 4 is a schematic diagram of a gear mark of a casing provided by the embodiment of the present application, the first position and the second position respectively correspond to a gear mark, and 401 in Fig. 4 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, and 404 is the button of the housing.

The watch face displays the current time by default. When the user rotates the bezel, when the bezel is rotated to the first position (that is, the preset position above), the amount of change in the magnetic induction intensity detected by the three-axis Hall sensor > the preset threshold T (considering the prevention of minor rotation errors) trigger, in this embodiment the 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 the current state and the bezel rotates to the first position, and the processor enters the corresponding physical sign detection function. The physical sign detection function includes the electrocardiogram measurement function and the body composition measurement function. When the bezel is rotated to the second position, the change in magnetic induction intensity detected by the three-axis Hall sensor is greater than 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 current state bezel is rotated to the second position, and the processor can enter other modes such as motion detection mode and flight mode.

If the user rotates the bezel to the gear mark corresponding to the first position of the casing, it can be determined that the bezel is rotated to the first position, and the electrocardiogram measurement function is activated. After the bezel is rotated to the first position, if a body composition detection instruction input by the user is received, the body composition detection function is activated.

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

Please refer to Fig. 5. Fig. 5 is a schematic diagram of a conductive electrode connection method of 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, buttons 540, The first conductive elastic member 550 and the second conductive elastic member 551, the first conductive electrode 560, the second conductive electrode 561, the third conductive electrode 562, the fourth conductive electrode 563, the electrode contact 570 of the third conductive electrode, the fourth conductive electrode Electrode contacts 571 for conductive electrodes. The outer surface and the inner surface of the heart rate lens of the watch bottom case are plated with a continuous 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 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 and bioimpedance sensor and related circuit components are located on the motherboard. In this way, the wrist skin forms an electronic path through the first conductive electrode, the second conductive electrode, the ECG sensor and the bioimpedance 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, the inner surface of the metal bezel is plated with an insulating layer, and only the electrode contact retains good conductivity. When the bezel is rotated to the set first position or the second position, the main board passes through the opening at the corresponding position of the upper case through the conductive elastic member, and contacts with the electrode contact at the corresponding position of the bezel. In this way, an electronic path is formed between the finger skin and the ECG sensor and the bioimpedance sensor through the third conductive electrode and the fourth conductive electrode.

As a feasible implementation, 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 under the bezel, and a magnet can be embedded in a specific position in the bezel. During the rotation of the bezel, the magnetic field data collected by the three-axis Hall sensor changes, thereby realizing the detection of the rotation position of the bezel. The three-axis Hall sensor can detect the change of the surrounding XYZ three-axis magnetic field, and can send an interrupt signal to the processor according to the set threshold of the magnetic field change. The minimum change of the single-axis magnetic induction intensity that the three-axis Hall sensor can detect is 3uT.

Further, in this embodiment, magnets can be embedded in the bezel according to the number and positions of the trigger positions, and the magnet size, magnet position, number of magnets and the placement position of the three-axis Hall sensor 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, the second position is the position corresponding to 11 o'clock, and the gear identification of the casing includes the default gear identification corresponding to the 9 o'clock position, and the corresponding gear identification at 11 o'clock. The first gear mark, the second gear mark corresponding to 7 o'clock, and the three-axis Hall sensor can be placed near the projection of the default gear mark on the main board. Magnet size, magnet number and magnet position will all affect the magnetic induction intensity around the three-axis Hall sensor, so this embodiment can adjust the magnet size, magnet number and magnet position so that the three-axis Hall sensor detects the rotation and the logo rotates to the default There are obvious differences in the magnetic induction intensity of the XYZ three-axis in the position, the first position and the second position. In this embodiment, a large magnet can be embedded at the 9 o'clock position of the bezel, and a plurality of small magnets can be embedded in the interval between 7 o'clock and 11 o'clock. This embodiment can calibrate the magnetic field trigger threshold, trigger area and anti-mistouch threshold of 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 judging that the rotation mark of the bezel rotates to a certain gear mark, and the trigger area refers to the area corresponding to the bezel rotation position for judging that the rotation mark of the bezel rotates to a certain gear mark (for example, If the rotation mark of the circle points to the area from 6:40 to 7:20, it is determined that the rotation mark has rotated to the second position corresponding to 7 o'clock). The anti-mis-touch threshold is a safety margin set to prevent the identification confusion of multiple gear marks. Taking the second gear mark corresponding to 7 o'clock as an example, it can be marked that the second gear mark corresponding to 7 o'clock is 20 The magnetic induction intensity of the XYZ three-axis at the minute position, that is, the magnetic induction intensity M720x, M720y, M720z at the 7:20 position, and the magnetic induction intensity M640x, M640y, M640z at the 6:40 position. In the same way, mark the magnetic induction intensity of the XYZ three-axis at 20 degrees left and right of the default gear mark corresponding to the 9 o'clock position, the magnetic induction intensity at 9:20 position M920x, M920y, M920z, and the magnetic induction intensity at 8:40 position M840x, M840y, M840z . In order to prevent false triggering, adjust the size and position of the magnet so that 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 have sufficient safety margins. That is: |M840x-M720x|>△Mx, |M840y-M720y|>△My, |M840z-M720z|>△Mz. In this embodiment, ΔMx=ΔMy=ΔMz=200uT. △Mx is the X-axis safety margin, △My is the Y-axis safety margin, and △Mz is the Z-axis safety margin.

Please refer to Fig. 6, Fig. 6 is a flow chart of a method for collecting physical sign data by using a wristwatch provided by the embodiment of the present application. The preset threshold T of the Hall sensor, the detection of the three-axis Hall sensor triggers an output interrupt signal in order to wake up the processor; the processor reads the current value of the three-axis magnetic induction intensity of the three-axis Hall sensor, and judges the rotation position of the bezel. If the bezel is rotated to the first position, it will enter the process of starting the ECG measurement function; if the bezel is rotated to the second position, it will enter the user-defined functions, such as outdoor running, display payment QR code, etc.; if the bezel is rotated To other positions, the processor enters the sleep state and controls the three-axis Hall sensor to enter the low-power detection mode.

Please refer to FIG. 7. FIG. 7 is a flow chart of a watch-based ECG data collection provided by the embodiment of the present application, which specifically includes the following steps:

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

S702: The processor enables the ECG sensor.

S703: The processor stores the ECG data collected by the ECG sensor in the memory.

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

S705: After the amount of ECG data stored in the memory meets the requirements of the electrocardiogram, the processor reminds the completion of the ECG data collection on the display screen, so that the user can restore the rotating bezel to the default position.

S706: After the processor determines that the bezel has returned to the default position, it sends the ECG data in the memory to the mobile phone via Bluetooth to remind the user that the ECG measurement is completed. Please check the detailed ECG data in the mobile APP.

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

In the above embodiments, the bezel of the watch can be rotated, and the bezel is made of conductive material to realize the function of a conductive electrode. A sensor detects the rotational position of the bezel inside the watch. The user only needs to rotate the bezel to the designated position to connect the conductive electrodes on the bezel to the ECG sensor inside the watch, and enter the corresponding ECG data collection mode without operating the touch screen, which can improve the accuracy of ECG data. Collection efficiency and convenience.

When the bezel is not rotated to the preset position, if the user activates the body composition measurement function, the user can be assisted to detect the body composition information through the process shown in Figure 8. Figure 8 is a wristwatch provided by the embodiment of the application A flowchart of a method for collecting body composition information, specifically including the following steps:

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

S802: The processor triggers a body composition detection function.

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

S804: The processor enables the bioimpedance sensor.

S805: The processor controls the display to remind the user to press the thumb and forefinger on the 2 electrodes of the bezel and rotate the bezel to the preset position.

S806: the processor determines whether the bezel rotates to the preset position through the Hall sensor; if yes, enters S807; if not, enters S805.

S807: The processor controls the bio-impedance sensor to enter the measurement mode, and determines the validity of the collected data; if yes, enters S808; if not, enters S805.

S808: The processor stores the impedance data collected by the bioimpedance sensor in the memory.

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

S810: The processor controls the display to prompt that the collection of body composition data is completed, and the user is asked to restore the rotating bezel to the default position.

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

S812: The processor turns off the electronic switch.

S813: the processor turns off the bio-impedance sensor.

The above embodiment can guide the user to perform body composition detection after the user selects the body composition detection function, and can help users who are not familiar with the body composition detection function to complete the body composition detection and improve user experience.

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

According to the data collected by the position detection sensor, it is judged whether the rotating member rotates to the preset position;

If no body composition detection instruction input by the user is received and the rotating member rotates to a preset position, the electronic switch is controlled to connect the conductive electrode to the ECG sensor, and the ECG sensor is used to collect ECG data through the conductive electrode.

In this embodiment, the data collected by the position detection sensor is used to determine the rotational position of the rotating member. When the rotating member rotates to a preset position, it indicates that the user has a demand for collecting physical sign data. This embodiment can also judge 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 member rotates to the preset position, the conductive electrode is controlled to communicate with the ECG sensor, and then the ECG sensor is used to detect the body composition. The sensor collects ECG data through conductive electrodes. When the user's heart is uncomfortable, the ECG data collection can be realized by adjusting the rotating part, which can improve the convenience of the ECG data collection process.

Further, it also includes:

If the body composition detection instruction input by the user is received and the rotating member is rotated to a preset position, the electronic switch is controlled to connect the conductive electrode with the bioimpedance sensor, and the bioimpedance sensor is used to collect impedance data through the conductive electrode.

Further, the conductive electrode includes at least one multiplexing electrode; when the rotating member rotates to a preset position, the multiplexing electrode is connected to the electronic switch;

Correspondingly, controlling the electronic switch to communicate the conductive electrode with the ECG sensor includes: controlling the electronic switch to communicate the multiplexing electrode with the ECG sensor;

Correspondingly, controlling the electronic switch to communicate the conductive electrode with the bioimpedance sensor includes: controlling the electronic switch to communicate the multiplexing electrode with the bioimpedance sensor.

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 multiplexing electrodes, when the rotating member rotates to At the preset position, the fourth conductive electrode communicates with the bioimpedance sensor.

Further, the first conductive electrode and the second conductive electrode are arranged on the wearing contact part of the wrist-worn device;

Further, the wrist-worn device also 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 with the bioimpedance sensor, and the casing of the wrist-worn device is provided with a first opening and second opening;

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

Further, the wrist-worn device is a watch, and the rotating part is a bezel.

Further, the wrist-worn device also includes a display screen;

Correspondingly, it also includes:

If the body composition detection instruction input by the user is received, the electronic switch is controlled to connect the conductive electrode with the bioimpedance sensor;

Judging whether the impedance data collected by the bioimpedance sensor is valid data;

If not, the display screen is controlled to display prompt information; wherein, the prompt information includes information prompting the pressing position of the finger, and/or information prompting to rotate the rotating member to a preset position.

Further, it also includes:

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 executed when the body composition detection instruction input by the user is not received and the rotating member rotates to the preset position operation.

An embodiment of the present application also provides a system for collecting sign data, which is applied to a processor of a wrist-worn device. The wrist-worn device also includes a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bio-impedance sensor, and a position detection sensor. Collection methods include:

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

The position detection module is used to determine whether the rotating member rotates to a preset position according to the data collected by the position detection sensor;

The ECG acquisition module is used to control the electronic switch to connect the conductive electrodes to the ECG sensor if the body composition detection instruction input by the user is not received and the rotating member rotates to a preset position, and the ECG sensor is used to collect ECG data through the conductive electrodes.

Further, it also includes:

The impedance acquisition module is used to control the electronic switch to connect the conductive electrode with the bio-impedance sensor if the body composition detection instruction input by the user is received and the rotating member is rotated to a preset position, and the bio-impedance sensor is used to collect impedance data through the conductive electrode .

Correspondingly, the process in which the ECG acquisition module controls the electronic switch to connect the conductive electrode to the ECG sensor includes: controlling the electronic switch to connect the multiplexing electrode to the ECG sensor;

Correspondingly, the process in which the ECG acquisition module controls 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.

Further, the wrist-worn device is a watch, and the rotating part is a bezel.

Further, the wrist-worn device also includes a display screen;

Correspondingly, it also includes:

The auxiliary module is used to control the electronic switch to connect the conductive electrode with the bioimpedance sensor if the body composition detection instruction input by the user is received; it is also used to judge whether the impedance data collected by the bioimpedance sensor is valid data; if not, control The display screen displays prompt information; wherein, the prompt information includes information prompting the pressing position of the finger, and/or information prompting to rotate the rotating member to a preset position.

Further, it also includes:

The custom module is used to update the target operation corresponding to the preset position according to the custom command if the custom command input by the user is received; wherein, the target operation is that the body composition detection command input by the user is not received and the rotating member rotates Action to perform when reaching a preset position.

Since the embodiments of the method and system correspond to the embodiments of the wrist-worn device, please refer to the description of the embodiment of the wrist-worn device for the embodiments of the method and system, and details will not be repeated here.

The present application also provides a storage medium on which a computer program is stored. When the computer program is executed, the steps provided in the above-mentioned embodiments can be realized. The storage medium may include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes.

Each embodiment in the description is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for relevant details, please refer to the description of the method part. It should be pointed out that those skilled in the art can make some improvements and modifications to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

It should also be noted that in this specification, relative 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 that these entities or operations There is no such actual relationship or order between the operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Claims

A wrist-worn device, characterized in that it includes a processor, a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bioimpedance sensor and a position detection sensor, and the processor is used for:

Determine whether the body composition detection instruction input by the user is received;

judging whether the rotating member has rotated 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 is rotated to the preset position, the electronic switch is controlled to connect the conductive electrode with the ECG sensor, and the ECG A sensor collects ECG data through the conductive electrodes.
The wrist-worn device according to claim 1, wherein the processor is also used for:

If a body composition detection instruction input by the user is received and the rotating member rotates to the preset position, the electronic switch is controlled to communicate the conductive electrode with the bioimpedance sensor, and the bioimpedance sensor is used to pass through the The conductive electrodes are used to collect impedance data.
The wrist-worn device according to claim 2, wherein the conductive electrode comprises at least one multiplexing electrode; when the rotating member rotates to the preset position, the multiplexing electrode is connected to the electronic switch;

Correspondingly, the process of the processor controlling the electronic switch to communicate the conductive electrode with the ECG sensor includes: controlling the electronic switch to communicate the multiplexing electrode with the ECG sensor;

Correspondingly, the process of the processor controlling the electronic switch to connect the conductive electrode with the bioimpedance sensor includes: controlling the electronic switch to connect the multiplexing electrode with the bioimpedance sensor.
The wrist-worn device according to claim 3, wherein 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 The conductive electrode and the third conductive electrode are the multiplexing electrodes, and the fourth conductive electrode communicates with the bioimpedance sensor when the rotating member rotates to the preset position.
The wrist-worn device according to claim 4, wherein the first conductive electrode and the second conductive electrode are arranged on the wearing contact part of the wrist-worn device;

The third conductive electrode and the fourth conductive electrode are arranged on the non-wearing contact part of the wrist-worn device.
The method for detecting vital sign data according to claim 4, wherein the wrist-worn device further comprises a main board, the main board is provided with a first conductive elastic member connected to the electronic switch, and connected to the bio-impedance sensor. The second conductive elastic member, 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 to connect with the third conductive electrode, and the second conductive elastic member passes through the first conductive elastic member. The two openings are connected to the fourth conductive electrode.
The wrist-worn device according to claim 1, wherein the wrist-worn device is a watch, and the rotating member is a bezel.
The wrist-worn device according to claim 1, further comprising a display screen, and the processor is also used for:

If a body composition detection instruction input by a user is received, controlling the electronic switch to connect the conductive electrode with the bioimpedance sensor;

judging whether the impedance data collected by the bio-impedance sensor is valid data;

If not, control the display screen to display prompt information; wherein, the prompt information includes information prompting the position of the finger to be pressed, and/or information prompting to rotate the rotating member to the preset position.
The wrist-worn device according to any one of claims 1 to 8, wherein the processor is further configured to, if a user-defined instruction is received, update the corresponding preset position according to the user-defined instruction. The target operation; 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.
A method for collecting sign data, characterized in that it is applied to a processor of a wrist-worn device, and the wrist-worn device also includes a rotating member, a conductive electrode, an electronic switch, an ECG sensor, a bio-impedance sensor and a position detection sensor, and the sign Data collection methods include:

Determine whether the body composition detection instruction input by the user is received;

judging whether the rotating member has rotated 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 is rotated to the preset position, the electronic switch is controlled to connect the conductive electrode with the ECG sensor, and the ECG A sensor collects ECG data through the conductive electrodes.