Multi-lead electrocardiogram detection method and electronic device

Abstract

Embodiments of the present application provide a multi-lead electrocardio detection method and an electronic device, which timely detects acute myocardial infarction and the like through three electrodes. The method comprises: in response to a user operation, acquiring potential signals of two upper limbs, a lower limb and six equivalent position surfaces in front of a human body; determining twelve-lead electrocardiogram signals based on the potential signals; the user operation is an operation of contacting the first and second detection electrodes with the two upper limbs of the human body and sequentially contacting the third detection electrode with the lower limb and the six equivalent positions in front of the human body; the six equivalent positions in front of the human body are six positions obtained by moving the six preset positions in front of the human body by a preset distance in the direction of the two upper limbs; and the preset distance is a distance between a center point established when the first detection electrode contacts one upper limb, the second detection electrode contacts the other upper limb and the third detection electrode contacts the lower limb and a center point established when the first detection electrode contacts one upper limb and the second detection electrode contacts the other upper limb.

Description

[0001] This application is a divisional application. The original application was entitled "Multi-lead ECG Detection Method and Electronic Equipment", with application number 202211078466.4 and application date of September 5, 2022. The entire contents of the original application are incorporated herein by reference. Technical Field

[0002] This application relates to the field of smart terminal technology, and in particular to a multi-lead electrocardiogram detection method and electronic device. Background Technology

[0003] With the rapid development of electronic technology and people's increasing attention to their health, the use of portable devices to assist in health assessment is becoming increasingly widespread. For example, some existing wristbands integrate electrocardiogram (ECG) detection functions to monitor the user's heart function. The wristband has a first electrode on its bottom surface and a second electrode on its front surface. In detection mode, the first electrode contacts the wrist of the person wearing the wristband, and the second electrode contacts the wrist of the person wearing the wristband. This allows for the acquisition of ECG signals corresponding to the I leads (single leads) of both wrists.

[0004] Most existing portable devices have single-lead ECG detection functions. Single-lead ECG detection can only detect temporal abnormalities in ECG signals (such as atrial fibrillation and premature beats), but it cannot effectively detect situations that require multi-lead ECG detection, such as acute myocardial infarction.

[0005] Acute myocardial infarction usually occurs in a very urgent manner. Therefore, how to implement multi-lead ECG detection through portable devices to improve the timeliness of detection for diseases such as acute myocardial infarction is an urgent problem to be solved. Summary of the Invention

[0006] To address the aforementioned technical problems, this application provides a multi-lead ECG detection method and electronic device. Using three detection electrodes, a twelve-lead ECG can be measured, enabling the detection of not only temporal abnormalities in ECG signals (such as atrial fibrillation and premature beats), but also effective and timely detection in scenarios requiring multi-lead ECG monitoring, such as acute myocardial infarction.

[0007] In a first aspect, embodiments of this application provide a multi-lead electrocardiogram (ECG) detection method, applied in an electronic device. The electronic device includes a first detection electrode, a second detection electrode, and a third detection electrode for acquiring electrical signals from the human body surface. The multi-lead ECG detection method includes: in response to a first operation, acquiring potential signals from the surfaces of two upper limbs and a lower limb of the human body; wherein the first operation is the operation of the first detection electrode contacting one upper limb of the human body, the second detection electrode contacting the other upper limb of the human body, and the third detection electrode contacting the lower limb of the human body; in response to a second operation, sequentially acquiring potential signals from six equivalent positions on the surface of the human chest; wherein the second operation is the operation of the third detection electrode sequentially contacting... The operation involves contacting six equivalent positions on the front of the human chest. These six equivalent positions are the six positions obtained by moving six preset positions on the chest towards the two upper limbs by preset distances. The preset distances are the distances between the first center point established when the first detection electrode contacts one upper limb, the second detection electrode contacts the other upper limb, and the third detection electrode contacts the lower limb, and the second center point established when the first detection electrode contacts one upper limb and the second detection electrode contacts the other upper limb. Based on the potential signals on the surfaces of the two upper limbs and the lower limb, as well as the potential signals on the surfaces of the six equivalent positions on the front of the human chest, the electrocardiogram signals corresponding to the twelve leads are determined.

[0008] Two of the three electrodes contact the user's two upper limbs, while the third electrode sequentially touches the lower limbs and six equivalent locations on the chest, collecting the potential signal at each location. Based on the collected potential signals from the two upper limbs and one lower limb, the electronic device can obtain electrocardiogram (ECG) signals corresponding to the six limb leads. Similarly, based on the collected electrical signals from the two upper limbs and six equivalent locations on the chest, the electronic device can obtain ECG signals corresponding to the six chest leads. This is because the first detection electrode contacts one upper limb and the second detection electrode contacts the other upper limb. The vector directions of the second center point established when the upper limb is in contact with the body, pointing to the six equivalent positions on the chest, correspond one-to-one with the vector directions of the first center point established when the first detection electrode is in contact with one upper limb, the second detection electrode with the other upper limb, and the third detection electrode with the lower limb. Therefore, the six equivalent position leads on the chest in this scenario can be considered as equivalent leads to the six preset position leads on the chest, thereby enabling the detection of equivalent precordial leads V1, V2, V3, V4, V5, and V6, and obtaining the ECG signals corresponding to the six precordial leads. In summary, a twelve-lead ECG can be measured using only three electrodes, which can effectively and promptly detect situations requiring multi-lead ECG detection, such as acute myocardial infarction, and the structure is simple.

[0009] For example, the six preset positions include a first preset position, a second preset position, a third preset position, a fourth preset position, a fifth preset position, and a sixth preset position. The first preset position is the fourth intercostal space at the right edge of the sternum, the second preset position is the fourth intercostal space at the left edge of the sternum, the third preset position is the midpoint of the line connecting the second and fourth preset positions, the fourth preset position is the intersection of the left midclavicular line and the fifth intercostal space, the fifth preset position is the same level as the left anterior axillary line and the fourth preset position, and the sixth preset position is the same level as the left midaxillary line and the fourth preset position.

[0010] For example, the six equivalent positions include a first equivalent position, a second equivalent position, a third equivalent position, a fourth equivalent position, a fifth equivalent position, and a sixth equivalent position. The first equivalent position can be, for example, the second intercostal space at the right sternal border; the second equivalent position is the second intercostal space at the left sternal border; the third equivalent position is located at the midpoint of the line connecting the second and fourth equivalent positions; the fourth equivalent position is the intersection of the left midclavicular line and the third intercostal space; the fifth equivalent position is at the same level as the left anterior axillary line and the fourth preset position; and the sixth equivalent position is at the same level as the left midaxillary line and the fourth preset position.

[0011] For example, the two upper limbs include the left upper limb (e.g., the left hand) and the right upper limb (e.g., the right hand); the lower limbs include the abdomen and the feet (left foot or right foot).

[0012] According to the first aspect, the multi-lead electrocardiogram detection method also includes: processing the acquired potential signals from the surfaces of the two upper limbs and the lower limbs of the human body to determine the electrocardiogram signals corresponding to the six limb leads.

[0013] In some use cases, electronic devices (such as smartwatches) can process and analyze the potential signals acquired from the surfaces of the two upper and lower limbs of the human body to determine the electrocardiogram (ECG) signals corresponding to the six limb leads; alternatively, they can send the signals to other electronic devices (such as mobile phones), which can then process and analyze the potential signals from the surfaces of the two upper and lower limbs of the human body to determine the ECG signals corresponding to the six limb leads, and then send the determined ECG signals corresponding to the six limb leads back to the electronic device (such as a smartwatch).

[0014] According to the first aspect, or any implementation of the first aspect above, the two upper limbs include the left upper limb and the right upper limb; the potential signals of the acquired surfaces of the two upper limbs and the lower limbs of the human body are processed to determine the electrocardiogram (ECG) signals corresponding to the six limb leads, including: determining the ECG signal corresponding to lead I based on the potential difference between the potential signals of the surface of the left upper limb and the surface of the right upper limb; determining the ECG signal corresponding to lead II based on the potential difference between the potential signals of the surface of the lower limb and the surface of the right upper limb; determining the ECG signal corresponding to lead III based on the potential difference between the potential signals of the surface of the lower limb and the surface of the left upper limb; determining the potential of the first center point, and determining the ECG signals corresponding to lead aVR, lead aVL, and lead aVF based on the potential differences between the potential of the first center point and the potential signals of the surface of the left upper limb, the surface of the right upper limb, and the surface of the lower limb, respectively.

[0015] According to the first aspect, or any implementation of the first aspect above, the multi-lead electrocardiogram detection method further includes: processing the potential signals of the two upper limbs and six equivalent positions on the chest to obtain the electrocardiogram signals corresponding to the six precordial leads.

[0016] In some use cases, electronic devices (such as smartwatches) can process and analyze the potential signals acquired from the two upper limbs and six equivalent locations on the chest to determine the electrocardiogram (ECG) signals corresponding to the six precordial leads. Alternatively, the signals can be sent to other electronic devices (such as mobile phones) for processing and analysis to determine the ECG signals corresponding to the six precordial leads, and then the determined ECG signals can be sent back to the electronic device (such as a smartwatch).

[0017] According to the first aspect, or any implementation of the first aspect above, the potential signals of the two upper limbs of the human body and the six equivalent positions of the chest surface are processed to obtain the electrocardiogram signals corresponding to the six precordial leads, including: determining the potential of the second center point, and determining the electrocardiogram signals corresponding to lead V1, lead V2, lead V3, lead V4, lead V5 and lead V6 based on the potential difference between the potential of the second center point and the potential signals of the six equivalent positions of the chest surface.

[0018] According to the first aspect, or any implementation of the first aspect above, before sequentially acquiring the potential signals of the six equivalent positions on the surface of the human chest in response to the second operation, the method further includes: displaying a first interface, the first interface including a first information prompt box, the first information prompt box being used to prompt the six equivalent positions on the chest, and the user can place the third detection electrode according to the prompt to complete the detection, thereby improving the user experience and increasing the accuracy of the detection.

[0019] According to the first aspect, or any implementation of the first aspect above, in response to the second operation, before sequentially acquiring the potential signals of the six equivalent positions on the surface of the human chest, the method further includes: acquiring a preview image of the upper body of the human body captured by the camera; sequentially determining the target object in the preview image, wherein the target object includes the six equivalent positions on the human chest, and the user can place the third detection electrode according to the target object to complete the detection, improve the user experience, and improve the accuracy of the detection.

[0020] According to the first aspect, or any implementation of the first aspect above, the multi-lead ECG detection method further includes: when the ECG signal corresponding to the twelve leads does not match the ECG signal corresponding to the preset twelve leads, outputting a health status reminder message to promptly notify the user of a health problem (such as the risk of acute myocardial infarction).

[0021] For example, when at least one of the twelve leads in the electrocardiogram signal shows typical disease-related features compared to a normal electrocardiogram signal (such as ST segment elevation, pathological Q waves, etc.), a health status reminder message is output.

[0022] For example, if one of the ECG signals corresponding to the twelve leads does not match its corresponding preset ECG signal, such as when it shows typical disease-related characteristics compared to a normal ECG signal, a health status reminder message will be output. Alternatively, if multiple of the ECG signals corresponding to the twelve leads do not match their corresponding preset ECG signals, such as when they show typical disease-related characteristics compared to a normal ECG signal, a health status reminder message will be output.

[0023] For example, health status alerts may include statements and / or alarms or notifications to family members.

[0024] Secondly, embodiments of this application provide an electronic device. The electronic device includes: a first detection electrode, a second detection electrode, and a third detection electrode for collecting electrical signals from the surface of a human body; it also includes: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, and when the computer programs are executed by the one or more processors, the electronic device performs the following steps: in response to a first operation, acquiring potential signals from the surfaces of two upper limbs and a lower limb of a human body; wherein the first operation is the operation of the first detection electrode contacting one upper limb of the human body, the second detection electrode contacting the other upper limb of the human body, and the third detection electrode contacting the lower limb of the human body; in response to a second operation, sequentially acquiring potential signals from six equivalent positions on the surface of the chest of the human body. The potential signal; wherein, the second operation is the operation of the third detection electrode sequentially contacting six equivalent positions on the front of the human body, the six equivalent positions on the front of the chest are six positions after the six preset positions on the front of the chest have been moved a preset distance towards the two upper limbs, the preset distance is the distance between the first center point established when the first detection electrode contacts one upper limb of the human body, the second detection electrode contacts the other upper limb of the human body, and the third detection electrode contacts the lower limb of the human body and the second center point established when the first detection electrode contacts one upper limb of the human body and the second detection electrode contacts the other upper limb of the human body; based on the potential signals on the surfaces of the two upper limbs and the lower limbs of the human body and the potential signals on the surfaces of the six equivalent positions on the front of the human body, the electrocardiogram signal corresponding to the twelve leads is determined.

[0025] According to the second aspect, the electronic device also includes a display screen for displaying the electrocardiogram signals corresponding to the twelve leads, so as to facilitate the user to view the electrocardiogram signals of the twelve leads.

[0026] According to the second aspect, or any implementation thereof, when the computer program is executed by one or more processors, the electronic device performs the following steps: processing the acquired potential signals from the surfaces of the two upper limbs and the lower limbs of the human body to determine the potential signals of the six limb leads.

[0027] According to the second aspect, or any implementation thereof, when the computer program is executed by one or more processors, the electronic device performs the following steps: determining lead I based on the potential difference between the potential signal on the surface of the left upper limb and the potential signal on the surface of the right upper limb; determining lead II based on the potential difference between the potential signal on the surface of the lower limb and the potential signal on the surface of the right upper limb; determining lead III based on the potential difference between the potential signal on the surface of the lower limb and the potential signal on the surface of the left upper limb; determining the potential of a first center point, and determining lead aVR, lead aVL, and lead aVF based on the potential differences between the potential of the first center point and the potential signals on the surfaces of the left upper limb, the right upper limb, and the lower limb, respectively.

[0028] According to the second aspect, or any implementation thereof, when the computer program is executed by one or more processors, the electronic device performs the following steps: processing the acquired potential signals of the two upper limbs of the human body and the six equivalent position surfaces of the chest of the human body to obtain six precordial lead signals.

[0029] According to the second aspect, or any implementation thereof, when the computer program is executed by one or more processors, the electronic device performs the following steps: determining the potential of the second center point, and determining the V1 lead signal, V2 lead signal, V3 lead signal, V4 lead signal, V5 lead signal and V6 lead signal based on the potential difference between the potential of the second center point and the potential signals of the six equivalent positions on the front of the human chest.

[0030] According to the second aspect, or any implementation thereof, when a computer program is executed by one or more processors, the electronic device performs the following steps: displaying a first interface, the first interface including a first information prompt box, the first information prompt box being used to indicate six equivalent positions on the chest.

[0031] According to the second aspect, or any implementation thereof, when the computer program is executed by one or more processors, the electronic device performs the following steps: acquiring a preview image of the upper body of a human body captured by a camera; sequentially determining target objects in the preview image, wherein the target objects include six equivalent positions on the front of the human chest.

[0032] According to the second aspect, or any implementation of the second aspect above, when the computer program is executed by one or more processors, the electronic device performs the following steps: when the electrocardiogram signal corresponding to the twelve leads does not match the electrocardiogram signal corresponding to the preset twelve leads, a health status reminder message is output.

[0033] The second aspect and any implementation thereof correspond to the first aspect and any implementation thereof, respectively. The technical effects of the second aspect and any implementation thereof are similar to those of the first aspect and any implementation thereof, and will not be repeated here.

[0034] Thirdly, embodiments of this application provide a multi-lead electrocardiogram (ECG) detection system, which includes: a smart wearable device and a mobile phone; the multi-lead ECG detection system further includes one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, and when the computer programs are executed by the one or more processors, the electronic device performs the multi-lead ECG detection method as described in the first aspect and any one of the first aspects.

[0035] The third aspect and any implementation thereof correspond to the first aspect and any implementation thereof, respectively. The technical effects of the third aspect and any implementation thereof are similar to those of the first aspect and any implementation thereof, and will not be repeated here.

[0036] Fourthly, embodiments of this application provide a computer-readable storage medium. The computer-readable storage medium includes a computer program that, when executed on an electronic device, causes the electronic device to perform the multi-lead electrocardiogram detection method of the first aspect and any one thereof.

[0037] The fourth aspect and any implementation thereof correspond to the first aspect and any implementation thereof, respectively. The technical effects of the fourth aspect and any implementation thereof are similar to those of the first aspect and any implementation thereof, and will not be repeated here.

[0038] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when run, causes a computer to perform a multi-lead electrocardiogram detection method as described in the first aspect or any one of the first aspects.

[0039] The fifth aspect and any implementation thereof correspond to the first aspect and any implementation thereof, respectively. The technical effects of the fifth aspect and any implementation thereof are similar to those of the first aspect and any implementation thereof, and will not be repeated here.

[0040] Sixthly, this application provides a chip including a processing circuit and transceiver pins. The transceiver pins and the processing circuit communicate with each other via an internal connection path. The processing circuit executes a multi-lead electrocardiogram detection method as described in the first aspect or any one thereof, to control the receiving pin to receive signals and to control the transmitting pin to transmit signals.

[0041] The sixth aspect and any implementation thereof correspond to the first aspect and any implementation thereof, respectively. The technical effects of the sixth aspect and any implementation thereof are similar to those of the first aspect and any implementation thereof, and will not be repeated here. Attached Figure Description

[0042] Figure 1 This paper presents a schematic diagram of a twelve-lead ECG provided in an embodiment of this application.

[0043] Figures 2a to 2f The schematic diagrams of electrode distribution corresponding to the six limb leads are shown respectively;

[0044] Figure 3 A schematic diagram of the electrode distribution corresponding to the six precordial leads is shown;

[0045] Figure 4 This illustration shows yet another schematic diagram of a twelve-lead ECG provided in an embodiment of this application;

[0046] Figure 5 The electrocardiograms corresponding to the six limb leads are shown;

[0047] Figure 6 A schematic diagram of the front structure of the electronic device is shown;

[0048] Figure 7 A schematic diagram of the rear structure of the electronic device is shown;

[0049] Figure 8 A schematic diagram of the circuit structure of an electronic device is shown;

[0050] Figure 9 A comparison diagram showing six preset positions and six equivalent positions on the chest is presented;

[0051] Figure 10 A schematic diagram illustrating the principle of determining the preset distance is shown;

[0052] Figure 11 A schematic diagram of equivalent precordial lead detection is shown;

[0053] Figure 12 This diagram illustrates one of the usage scenarios for electronic devices.

[0054] Figure 13 A schematic diagram showing the preview screen is provided.

[0055] Figure 14 A flowchart of a multi-lead electrocardiogram (ECG) detection method is shown.

[0056] Figure 15 A comparative simulation diagram of related technologies and embodiments of this application is shown;

[0057] Figure 16 A comparative simulation diagram of related technologies and embodiments of this application is shown;

[0058] Figure 17 A schematic diagram of a multi-lead electrocardiogram detection system provided in an embodiment of this application is shown. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0061] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0062] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0063] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0064] The standard twelve-lead system is commonly used in medical electrocardiogram (ECG) measurements. (See also...) Figure 1 The limb lead system reflects the projection of cardiac potentials onto the coronal plane (a longitudinal section dividing the heart into anterior and posterior parts), including six limb leads: I, II, III, aVR, aVL, and aVF. The precordial lead system reflects the cross-section of cardiac potential projections (a longitudinal section dividing the heart into superior and inferior parts), including six precordial leads: V1, V2, V3, V4, V5, and V6.

[0065] Combination Figures 2a to 2f The detection of the six limb leads is as follows: the potential difference between the left upper limb electrode LA and the right upper limb electrode RA forms the limb I lead (e.g. Figure 2a The corresponding electrocardiogram signal (as shown); the potential difference between the right upper limb electrode RA and the lower limb electrode LL forms the limb lead II (as shown). Figure 2b The corresponding electrocardiogram signal (as shown); the potential difference between the left upper limb electrode LA and the lower limb electrode LL forms limb lead III (as shown). Figure 2c The electrocardiogram signal corresponding to (as shown) can be obtained by simultaneously using three electrodes: the left upper limb electrode LA, the right upper limb electrode RA, and the lower limb electrode LL. The potential at the Wilson center point of these three electrodes can be located, and by detecting the potential difference between the Wilson electrode and the three electrodes, a limb aVR (as shown) can be formed. Figure 2d As shown), aVL (as shown) Figure 2e As shown), aVF (as shown) Figure 2f (As shown) The electrocardiogram signals corresponding to the three leads.

[0066] In this embodiment, "upper limb" refers to the part below the shoulder, including the hand; "lower limb" refers to the part below the navel, including the foot, lower abdomen, leg, knee, etc. Furthermore, since an accurate potential signal can be obtained by using the right lower limb instead of the left lower limb for electrocardiogram measurement, "lower limb" in this document refers to either the left or right lower limb.

[0067] See Figure 1 and Figure 3 The detection of the six precordial leads relies on the Wilson center point established by the three electrodes (LA, RA, and LL) on the left upper limb and right upper limb respectively, and on the six electrodes (V1, V2, V3, V4, V5, and V6) placed at six positions on the chest. The potential difference vector from the Wilson center point to the six precordial electrodes forms the signals of the six leads (V1, V2, V3, V4, V5, and V6).

[0068] Among them, V1 is located at the fourth intercostal space on the right side of the sternum (i.e., the first preset position), V2 is located at the fourth intercostal space on the left side of the sternum (i.e., the second preset position), V3 is located at the midpoint of the line connecting V2 and V4 (i.e., the third preset position), V4 is located at the intersection of the left midclavicular line and the fifth intercostal space (i.e., the fourth preset position), V5 is located at the same level as V4 on the left anterior axillary line (i.e., the fifth preset position), and V6 is located at the same level as V4 on the left midaxillary line (i.e., the sixth preset position).

[0069] Combination Figure 4Each lead represents a detection vector in one direction. A single detection vector can only detect abnormalities in one direction. Electrocardiograms used for medical diagnosis involve the detection of six leads in the coronal plane (I, II, III, aVL, aVF, aVR) and six leads in the cross-section (V1, V2, V3, V4, V5, V6), that is, the detection of twelve leads, which can cover the common sites of acute myocardial infarction.

[0070] Medical electrocardiogram (ECG) machines can perform 12-lead ECGs, but these machines are large and require professional medical personnel to operate, making them unsuitable for timely detection of conditions like acute myocardial infarction. Existing portable ECG devices mostly offer single-lead ECG detection, which can only detect temporal abnormalities in the ECG signal (such as atrial fibrillation and premature beats), and cannot effectively detect conditions requiring multi-lead ECGs, such as acute myocardial infarction.

[0071] For example, some existing wristbands integrate ECG detection functions that can obtain the potential signals corresponding to the I leads of both hands. See also Figure 5 The ECG in lead I is normal, but other leads show typical ST segment changes typical of acute myocardial infarction. In this scenario, only lead I can lead to a missed detection of acute myocardial infarction. It cannot be effectively detected in situations such as acute myocardial infarction that require multi-lead ECG.

[0072] Based on this, this application provides a multi-lead electrocardiogram detection method and electronic device. The electronic device is equipped with three electrodes for collecting electrical signals from the human body surface. Two of the three electrodes are in contact with the user's two upper limbs, and the third electrode sequentially touches the lower limb position and six equivalent positions on the chest (the contact time is, for example, 10 seconds each). The six equivalent positions on the chest are the six positions after moving the six positions on the chest (i.e., the first preset position, second preset position, third preset position, fourth preset position, fifth preset position and sixth preset position) directly upward (in the direction of the two upper limbs) by a preset distance. The preset distance is the distance between the Wilson center point established when two of the three electrodes are in contact with the user's two upper limbs and the center point established when the two electrodes are in contact with the user's two upper limbs. Furthermore, the electronic device collects electrical signals at each location. Based on the collected electrical signals from the two upper limbs and one lower limb, it can obtain potential signals corresponding to the six limb leads. Based on the collected electrical signals from the two upper limbs and six equivalent locations on the chest, it can obtain potential signals corresponding to the six precordial leads, thereby achieving the measurement of a twelve-lead ECG. Since the detection of a twelve-lead ECG can cover the common sites of acute myocardial infarction, this embodiment can not only detect temporal abnormalities of ECG signals (such as atrial fibrillation, premature beats, etc.), but also effectively and timely detect scenarios such as acute myocardial infarction that require multi-lead ECG detection. Moreover, this embodiment only requires three electrodes to complete the measurement of a twelve-lead ECG, which is simple in structure and takes a short time (for example, the measurement of a twelve-lead ECG can be completed in 70 seconds).

[0073] In this application embodiment, the electronic device may be, for example, a smart wearable device (such as a smartwatch, smart bracelet, smart armband, etc.), a mobile phone, a tablet computer, etc. This application embodiment does not impose any special limitation on the specific form of the above-mentioned electronic device.

[0074] The following uses a smartwatch as an example to explain the structure of the electronic device provided in this application embodiment and the principle of realizing the measurement of twelve-lead ECG.

[0075] See Figure 6 and Figure 7 , Figure 6 A schematic diagram of the front structure of the electronic device is shown. Figure 7 A schematic diagram of the rear structure of the electronic device is shown. (For example...) Figure 6 and Figure 7 As shown, the smartwatch 100 may include a watch body 10 and a wristband 20 connected to the watch body 10, the wristband 20 being used to wear the watch body 10 on the user's wrist.

[0076] The smartwatch 100 also includes three detection electrodes disposed on its surface for contact with the human body. The three detection electrodes are a first detection electrode 30, a second detection electrode 40, and a third detection electrode 50. The first detection electrode 30 is used to contact one upper limb (e.g., the left upper limb), the second detection electrode 40 is used to contact the other upper limb (e.g., the right upper limb), and the third detection electrode 50 is used to contact the lower limb and six equivalent positions on the chest in sequence. These six equivalent positions on the chest are designated as the first, second, third, fourth, fifth, and sixth equivalent positions. The specific locations of these six equivalent positions will be described in detail below and will not be repeated here.

[0077] Combination Figure 8 , Figure 8 A schematic diagram of the circuit structure of an electronic device is shown. (For example...) Figure 8 As shown, the smartwatch 100 also includes an electrocardiogram (ECG) signal processing module 60, for example, disposed inside the watch body 10. The ECG signal processing module 60 is electrically connected to the first detection electrode 30, the second detection electrode 40, and the third detection electrode 50, respectively. The ECG signal processing module 60 can be a microcontroller unit or other unit with signal processing capabilities.

[0078] When the first detection electrode 30 contacts one upper limb (e.g., the left upper limb), the second detection electrode 40 contacts the other upper limb (e.g., the right upper limb), and the third detection electrode 50 contacts the lower limb, the first detection electrode 30, the second detection electrode 40, and the third detection electrode 50 collect potential signals from the surface of their respective limbs. The ECG signal processing module 60 collects the potential signals from each detection electrode and processes the received potential signals to generate ECG signals corresponding to the six limb leads. In some embodiments, the ECG signal processing module 60 collects the potential signals from each detection electrode, processes the received potential signals to obtain the potential difference between the electrodes, and amplifies the potential difference between the electrodes through an amplification circuit to obtain the ECG signal corresponding to each limb lead.

[0079] Specifically, the ECG signal corresponding to lead I can be determined based on the potential difference between the potential signals on the surface of the upper left limb and the upper right limb; the ECG signal corresponding to lead II can be determined based on the potential difference between the potential signals on the surface of the lower limb and the upper right limb; and the ECG signal corresponding to lead III can be determined based on the potential difference between the potential signals on the surface of the lower limb and the upper left limb.

[0080] The potential of the Wilson center point (also known as the first center point T1) of the three limbs can be located based on the potential signals of the upper left limb, upper right limb, and lower limb. The ECG signals corresponding to lead aVR, lead aVL, and lead aVF can be determined based on the potential differences between the potential of the first center point T1 and the potential signals of the upper left limb, upper right limb, and lower limb. Thus, the ECG signals corresponding to the six limb leads can be obtained.

[0081] See Figure 9 , Figure 9 A comparison diagram showing six preset positions and six equivalent positions on the chest is displayed. (For example...) Figure 9 As shown, when the first detection electrode 30 contacts one upper limb (e.g., the left upper limb), the second detection electrode 40 contacts the other upper limb (e.g., the right upper limb), and the third detection electrode 50 contacts the first equivalent position R1 (the contact duration is, for example, 10 seconds), the first detection electrode 30, the second detection electrode 40, and the third detection electrode 50 collect the potential signals on the surface of their respective limbs. The electrocardiogram signal processing module 60 collects the potential signals on each detection electrode and processes the received potential signals to generate an electrocardiogram signal corresponding to the precordial lead V1. In some embodiments, the electrocardiogram signal processing module 60 collects the potential signals on each detection electrode and processes the received potential signals to obtain the potential difference between each electrode. The potential difference between each electrode is then amplified by an amplification circuit to obtain the electrocardiogram signal corresponding to the precordial lead V1. The first equivalent position R1 is the position after moving a preset distance H1 from the first preset position V1 (fourth intercostal space at the right sternal border) directly upwards (towards the two upper limbs), combined with... Figure 10 , Figure 10 The schematic diagram of the preset distance determination is shown in Figure 10. The preset distance H1 is the distance between the first center point T1 established when the first detection electrode 30 contacts one upper limb of the human body, the second detection electrode 40 contacts the other upper limb of the human body, and the third detection electrode 50 contacts the lower limb of the human body, and the second center point T2 established when the first detection electrode contacts one upper limb of the human body and the second detection electrode contacts the other upper limb of the human body.

[0082] This is because, see Figure 11 , Figure 11 A schematic diagram of equivalent precordial lead detection is shown, such as... Figure 11As shown, the vector direction of the second center point T2 established when the first detection electrode contacts one upper limb of the human body and the second detection electrode contacts the other upper limb of the human body, pointing to the first equivalent position R1, corresponds to the vector direction of the first center point T1 established when the first detection electrode contacts one upper limb of the human body, the second detection electrode contacts the other upper limb of the human body, and the third detection electrode contacts the lower limb of the human body, pointing to the first preset position v1 in front of the chest. Therefore, the first equivalent position lead in front of the chest in this scenario can be regarded as the equivalent lead of the first preset position lead in front of the chest, thereby realizing the detection of the equivalent chest lead V1 lead.

[0083] Similarly, see also Figure 9 , Figure 10 and Figure 11 When the first detection electrode 30 contacts one upper limb of the human body (e.g., the left upper limb), the second detection electrode 40 contacts the other upper limb of the human body (e.g., the right upper limb), and the third detection electrode 50 contacts the second equivalent position R2, the third equivalent position R3, the fourth equivalent position R4, the fifth equivalent position R5, and the sixth equivalent position R6 in sequence (the contact duration is, for example, 10 seconds for each position), the first detection electrode 30, the second detection electrode 40, and the third detection electrode 50 collect the potential signals on the surface of their respective limbs. The electrocardiogram signal processing module 60 collects the potential signals on each detection electrode and processes the received potential signals to generate an electrocardiogram signal corresponding to the precordial lead V2, the precordial lead V3, the precordial lead V4, the precordial lead V5, and the precordial lead V6. In some embodiments, the ECG signal processing module 60 acquires the potential signals on each detection electrode, processes the received potential signals to obtain the potential difference between each electrode, and amplifies the potential difference between each electrode through an amplification circuit, thereby obtaining the ECG signal corresponding to the precordial lead V2, the precordial lead V3, the precordial lead V4, the precordial lead V5, and the precordial lead V6.

[0084] Specifically, the second equivalent position R2 is the position after moving the second preset position V2 (the fourth intercostal space on the left sternal border) a preset distance H1 towards the two upper limbs. The third equivalent position R3 is the position after moving the third preset position V3 (the midpoint of the line connecting the second and fourth preset positions) a preset distance H1 towards the two upper limbs. The fourth equivalent position R4 is the position after moving the fourth preset position V4 (the intersection of the left midclavicular line and the fifth intercostal space) a preset distance H1 towards the two upper limbs. The fifth equivalent position R5 is the position after moving the fifth preset position V5 (the same level as the left anterior axillary line and the fourth preset position) a preset distance H1 towards the two upper limbs. The sixth equivalent position R6 is the position after moving the sixth preset position V6 (the same level as the left midaxillary line and the fourth preset position) a preset distance H1 towards the two upper limbs. The preset distance H1 is the distance between the first center point T1 established when the first detection electrode 30 is in contact with one upper limb of the human body, the second detection electrode 40 is in contact with the other upper limb of the human body, and the third detection electrode 50 is in contact with the lower limb of the human body, and the second center point T2 established when the first detection electrode 30 is in contact with one upper limb of the human body, and the second detection electrode 40 is in contact with the other upper limb of the human body.

[0085] This is because the vector directions of the second center point T2 established when the first detection electrode 30 contacts one upper limb of the human body and the second detection electrode 40 contacts the other upper limb of the human body, pointing to the second equivalent position R2, the third equivalent position R3, the fourth equivalent position R4, the fifth equivalent position R5, and the sixth equivalent position R6, are the same as the vector directions of the first center point T1 established when the first detection electrode 30 contacts one upper limb of the human body, the second detection electrode 40 contacts the other upper limb of the human body, and the third detection electrode 50 contacts the lower limb of the human body, pointing to the second preset position V2 on the chest and the vector directions of the second center point T2 ... The vector directions of the three preset positions V3, V4 (pointing to the chest), V5 (pointing to the chest), and V6 (pointing to the chest) correspond one-to-one. Therefore, the second, third, fourth, fifth, and sixth equivalent chest leads in this scenario can be considered as equivalent leads of the first, second, third, fourth, fifth, and sixth preset chest leads, thus enabling the detection of equivalent chest leads V2, V3, V4, V5, and V6. This results in the acquisition of electrocardiogram signals corresponding to the six chest leads.

[0086] In summary, a twelve-lead ECG can be measured using only three electrodes, enabling effective and timely detection in scenarios requiring multi-lead ECG monitoring, such as acute myocardial infarction, and the structure is simple.

[0087] Understandably, in practical use, two of the three detection electrodes can be in contact with the two upper limbs of the body, and the other detection electrode can be in contact with one lower limb and six equivalent positions on the chest in sequence to obtain electrocardiogram signals corresponding to the six limb leads and the six chest leads; alternatively, two of the three detection electrodes can be in contact with the two upper limbs of the body, and the other detection electrode can be in contact with one lower limb to obtain electrocardiogram signals corresponding to the six limb leads; still others can be in contact with two of the three detection electrodes, while the other electrode is not used, thus obtaining the electrocardiogram signal corresponding to one limb lead (e.g., lead I).

[0088] In some embodiments, see continue to see Figure 7 The smartwatch 100 also includes a fourth detection electrode 70, which is disposed on the surface of the smartwatch 100 so as to come into contact with the surface of the human body. The fourth detection electrode 70 serves as a driving electrode to eliminate common-mode interference.

[0089] The embodiments of this application do not limit the positions of the four electrodes (i.e., three detection electrodes and one driving electrode), as long as it is convenient for the user to contact the four electrodes with the above-mentioned positions during use.

[0090] In one possible implementation, see [link to previous section] Figure 6 and Figure 7 The watch band 20 has two electrodes on the inside, namely the first detection electrode 30 and the fourth detection electrode 70, and two electrodes on the outside, namely the second detection electrode 40 and the third detection electrode 50.

[0091] In this case, see Figure 12 , Figure 12 Diagrams illustrating usage scenarios for electronic devices, such as Figure 12As shown, when using the smartwatch 100 to perform a 12-lead ECG, the user can wear the smartwatch 100 on their left wrist. The first detection electrode 30 can naturally contact the user's left wrist to detect the left hand's electrical potential signal, and the fourth detection electrode 70 acts as a driving electrode. Simultaneously, since the second detection electrode 40 and the third detection electrode 50 are located on the outside of the watchband, during testing, the right hand touches the second detection electrode 40 to detect the right hand's electrical potential signal. With the first detection electrode 30 in contact with the left wrist and the second detection electrode 40 in contact with the right hand, the third detection electrode 50 sequentially contacts the lower limb, the first equivalent position R1, the second equivalent position R2, the third equivalent position R3, the fourth equivalent position R4, the fifth equivalent position R5, and the sixth equivalent position R6 to detect the electrical potential signals of the lower limb, the first equivalent position R1, the second equivalent position R2, the third equivalent position R3, the fourth equivalent position R4, the fifth equivalent position R5, and the sixth equivalent position R6, thereby determining the 12-lead ECG based on these electrical potential signals.

[0092] To facilitate users in quickly determining the first equivalent position R1, second equivalent position R2, third equivalent position R3, fourth equivalent position R4, fifth equivalent position R5, and sixth equivalent position R6. Optional, see [link to relevant documentation]. Figure 6 and Figure 7 The smartwatch 100 also includes a display screen 80, which can be used to display a first interface. The first interface includes a first information prompt box, which is used to prompt six equivalent positions on the chest. The user can place the third detection electrode 50 according to the prompt to complete the detection, thereby improving the user experience and increasing the accuracy of the detection.

[0093] In addition, the twelve-lead electrocardiogram signal can be displayed on the display screen 80 for user convenience.

[0094] Of course, the methods for users to quickly determine the first equivalent position R1, the second equivalent position R2, the third equivalent position R3, the fourth equivalent position R4, the fifth equivalent position R5, and the sixth equivalent position R6 are not limited to this. Those skilled in the art can set them according to the actual situation, and the embodiments of this application do not make specific limitations.

[0095] In other alternative embodiments, the smartwatch 100 also includes a camera capable of capturing preview images of the upper body, wherein the preview image of the upper body can be a preview image above the abdomen. Based on the preview image of the upper body captured by the camera, target objects in the preview image are sequentially determined, wherein the target objects include six equivalent locations on the chest of the human body.

[0096] Specifically, in practical applications, see Figure 13 , Figure 13A schematic diagram showing a preview screen is provided, such as... Figure 13 As shown, when the user enters the camera shooting mode of the smartwatch 100, the camera shooting mode will enter the shooting preview mode and display the preview screen. By recognizing feature information such as shoulders and chest in the shooting preview screen, the system locks six equivalent positions on the chest in the preview screen (first equivalent position R1, second equivalent position R2, third equivalent position R3, fourth equivalent position R4, fifth equivalent position R5 and sixth equivalent position R6) and displays them to the user. The user can place the third detection electrode 50 according to the prompts to complete the detection, thereby improving the user experience and the accuracy of the detection.

[0097] Furthermore, this application also provides a multi-lead electrocardiogram (ECG) detection method. This multi-lead ECG detection method can be applied, for example, to the electronic device described in this embodiment (such as a smartwatch), and has the same beneficial effects. Details not described in detail in this embodiment can be found in the embodiments of the aforementioned electronic device. The multi-lead ECG detection method will now be described in conjunction with the accompanying drawings of the above embodiments.

[0098] See Figure 14 , Figure 14 A flowchart of a multi-lead ECG detection method is shown, such as... Figure 14 As shown, the multi-lead ECG testing method specifically includes the following steps:

[0099] S1401, In response to the first operation, acquire the potential signals on the surfaces of the two upper limbs and the lower limb of the human body; wherein, the first operation is the operation of the first detection electrode contacting one upper limb of the human body, the second detection electrode contacting the other upper limb of the human body, and the third detection electrode contacting the lower limb of the human body.

[0100] When the first detection electrode 30 is in contact with one upper limb of the human body (e.g., the left upper limb), the second detection electrode 40 is in contact with the other upper limb of the human body (e.g., the right upper limb), and the third detection electrode 50 is in contact with the lower limb of the human body, the first detection electrode 30, the second detection electrode 40 and the third detection electrode 50 collect the potential signal of the corresponding limb surface.

[0101] S1402. Display the first interface, which includes a first information prompt box. The first information prompt box is used to indicate six equivalent positions on the chest. The specific locations of the six equivalent positions will be described in detail below, and will not be repeated here.

[0102] While the first detection electrode 30 is in contact with one upper limb of the human body (e.g., the left upper limb) and the second detection electrode 40 is in contact with the other upper limb of the human body (e.g., the right upper limb), the user can place the third detection electrode 50 in six equivalent positions on the chest according to the prompts to complete the detection of six precordial leads, thereby improving the user experience and increasing the accuracy of the detection.

[0103] Of course, the methods for users to quickly determine the first equivalent position R1, the second equivalent position R2, the third equivalent position R3, the fourth equivalent position R4, the fifth equivalent position R5, and the sixth equivalent position R6 are not limited to this. Those skilled in the art can set them according to the actual situation, and the embodiments of this application do not make specific limitations.

[0104] Step S1402 can also involve acquiring a preview image of the upper body captured by the camera; sequentially determining the target objects in the preview image, wherein the target objects include six equivalent positions on the front of the human chest. Specifically, when the user enters the camera shooting mode of the smartwatch 100, the camera shooting mode will enter the shooting preview mode, displaying the preview screen. By recognizing feature information such as shoulders and chest in the shooting preview screen, the six equivalent positions on the front of the chest in the preview screen (first equivalent position R1, second equivalent position R2, third equivalent position R3, fourth equivalent position R4, fifth equivalent position R5, and sixth equivalent position R6) are locked and displayed to the user. The user can place the third detection electrode 50 according to the prompts to complete the detection, improving the user experience and increasing the accuracy of the detection.

[0105] S1403. In response to the second operation, the potential signals of the six equivalent positions on the surface of the human chest are acquired sequentially; wherein, the second operation is the operation of the third detection electrode sequentially contacting the six equivalent positions on the human chest, the six equivalent positions on the chest are the six positions after the six preset positions on the chest have been moved a preset distance in the direction of the two upper limbs, the preset distance is the distance between the first center point established when the first detection electrode contacts one upper limb of the human body, the second detection electrode contacts the other upper limb of the human body, and the third detection electrode contacts the lower limb of the human body and the second center point established when the first detection electrode contacts one upper limb of the human body and the second detection electrode contacts the other upper limb of the human body.

[0106] As instructed, while the first detection electrode 30 is in contact with one upper limb of the human body (e.g., the left upper limb) and the second detection electrode 40 is in contact with the other upper limb of the human body (e.g., the right upper limb), the third detection electrode 50 is in contact with the first equivalent position R1, the second equivalent position R2, the third equivalent position R3, the fourth equivalent position R4, the fifth equivalent position R5, and the sixth equivalent position R6 in sequence, and collects the potential signal of the corresponding limb surface.

[0107] This is because the vector directions of the second center point established when the first detection electrode contacts one upper limb of the human body and the second detection electrode contacts the other upper limb of the human body, pointing to the six equivalent positions on the chest, correspond one-to-one with the vector directions of the first center point established when the first detection electrode contacts one upper limb of the human body, the second detection electrode contacts the other upper limb of the human body, and the third detection electrode contacts the lower limb of the human body, pointing to the six preset positions on the chest. Therefore, the six equivalent position leads on the chest in this scenario can be regarded as equivalent leads of the six preset position leads on the chest, thereby realizing the detection of equivalent precordial leads V1, V2, V3, V4, V5 and V6, and obtaining electrocardiogram signals corresponding to the six precordial leads.

[0108] S1404. Determine the ECG signal corresponding to lead I based on the potential difference between the potential signals on the surface of the left upper limb and the surface of the right upper limb; determine the ECG signal corresponding to lead II based on the potential difference between the potential signals on the surface of the lower limb and the surface of the right upper limb; determine the ECG signal corresponding to lead III based on the potential difference between the potential signals on the surface of the lower limb and the surface of the left upper limb; determine the potential of the first center point, and determine the ECG signals corresponding to leads aVR, aVL, and aVF based on the potential differences between the potential of the first center point and the potential signals on the surfaces of the left upper limb, the right upper limb, and the lower limb, respectively.

[0109] Specifically, the ECG signal processing module 60 collects the potential signals on each detection electrode, determines the ECG signal corresponding to lead I based on the potential difference between the potential signals on the surface of the left upper limb and the surface of the right upper limb, determines the ECG signal corresponding to lead II based on the potential difference between the potential signals on the surface of the lower limb and the surface of the right upper limb, and determines the ECG signal corresponding to lead III based on the potential difference between the potential signals on the surface of the lower limb and the surface of the left upper limb. The potential of the Wilson center point (also known as the first center point T1) of the three limbs can be located based on the potential signals of the upper left limb, upper right limb, and lower limb. The ECG signals corresponding to lead aVR, lead aVL, and lead aVF can be determined based on the potential differences between the potential of the first center point T1 and the potential signals of the upper left limb, upper right limb, and lower limb. Thus, the ECG signals corresponding to the six limb leads can be obtained.

[0110] S1405. Determine the potential of the second center point, and determine the V1, V2, V3, V4, V5, and V6 lead signals based on the potential differences between the potential of the second center point and the potential signals of the six equivalent positions on the chest of the human body, respectively, to obtain the electrocardiogram signals corresponding to the twelve leads. The potential of the second center point is the potential difference between the potential signal collected when the first detection electrode is in contact with one upper limb of the human body and the potential signal collected when the second detection electrode is in contact with the other upper limb of the human body.

[0111] S1406. Determine whether the ECG of the twelve leads matches the preset ECG of the twelve leads. If yes, proceed to step S1407; otherwise, proceed to step S1408.

[0112] When at least one of the twelve leads in the electrocardiogram (ECG) signal shows typical disease-related features compared to a normal ECG signal (such as ST segment elevation, pathological Q waves, etc.), a health status reminder message is output.

[0113] For example, if one of the ECG signals corresponding to the twelve leads does not match its corresponding preset ECG signal, such as when it shows typical disease-related characteristics compared to a normal ECG signal, a health status reminder message will be output. Alternatively, if multiple of the ECG signals corresponding to the twelve leads do not match their corresponding preset ECG signals, such as when they show typical disease-related characteristics compared to a normal ECG signal, a health status reminder message will be output.

[0114] S1407, Output health status information as normal.

[0115] For example, the health status can be displayed on the smartwatch 100's screen, and when the health status is normal, the user can be informed, for example, through a statement (played through a speaker).

[0116] S1408, Output health status reminder information.

[0117] When a user's health condition is abnormal, they can be alerted through announcements (played via speaker) and / or alarms to improve the user experience. The alert can also be sent wirelessly to family members' mobile phones to inform them of the user's health status.

[0118] In summary, a twelve-lead ECG can be measured using only three electrodes, enabling effective and timely detection in scenarios requiring multi-lead ECG monitoring, such as acute myocardial infarction, and the structure is simple.

[0119] To illustrate this beneficial effect in detail, a comparison with related technologies is provided below.

[0120] Figure 15 and Figure 16 All of these examples show comparative simulation diagrams of related technologies and embodiments of this application. Figure 15 (1) An electrocardiogram (ECG) that uses a medical ECG machine to perform detection of six limb leads in the relevant technology. Figure 15 (2) An electrocardiogram of six limb leads detected by three electrodes in this embodiment of the application; Figure 16 (1) An electrocardiogram that uses a medical electrocardiograph to perform the detection of six precordial leads in the relevant technology. Figure 16 (2) This is an electrocardiogram of six precordial leads detected by three electrodes in the embodiment of this application.

[0121] Figure 15 The six simulation results are, from top to bottom, the ECG signal corresponding to lead I, lead II, lead III, lead aVR, lead aVL, and lead aVF. Figure 15 The six simulation results are, from top to bottom, the ECG signal corresponding to lead V1, lead V2, lead V3, lead V4, lead V5, and lead V6.

[0122] Depend on Figure 15 and Figure 16 It can be seen that the results of the electrocardiogram signal corresponding to twelve leads measured by the smart watch 100 and the multi-lead electrocardiogram detection method provided in this application embodiment are basically consistent with the results of the electrocardiogram signal corresponding to twelve leads measured by medical electrocardiograph equipment. That is, the smart watch 100 and the multi-lead electrocardiogram detection method provided in this application embodiment have the same function as medical electrocardiograph equipment.

[0123] This embodiment also provides a multi-lead electrocardiogram (ECG) detection system. (Refer to...) Figure 17 The multi-lead electrocardiogram (ECG) monitoring system provided in this application specifically includes a smartwatch 100 and a mobile phone 200. The smartwatch 100 and the mobile phone 200 establish a communication connection beforehand, such as a Bluetooth communication connection and / or a wireless communication connection.

[0124] In this system, the smartwatch 100 collects the electrical potential signals from the corresponding limb surfaces and sends them to the mobile phone 200. The mobile phone 200 processes these electrical potential signals to obtain a 12-lead ECG and compares it with a preset 12-lead ECG. If the ECG signal corresponding to the 12-lead ECG does not match the preset ECG signal, an alert is sent to the smartwatch 100. The smartwatch 100 then alerts the user through a notification (played through a speaker) and / or an alarm, improving the user experience. Alternatively, the mobile phone 200 can process the electrical potential signals to obtain a 12-lead ECG and send it to the smartwatch 100. The smartwatch 100 then compares the 12-lead ECG with a preset 12-lead ECG. If the ECG signal corresponding to the 12-lead ECG does not match the preset ECG signal, it alerts the user through a notification (played through a speaker) and / or an alarm, improving the user experience. For a detailed explanation, please refer to the aforementioned embodiments, which will not be repeated here.

[0125] This embodiment also provides a computer storage medium storing computer instructions. When the computer instructions are executed on an electronic device, the electronic device performs the aforementioned method steps to implement the multi-lead electrocardiogram detection method described in the above embodiment.

[0126] This embodiment also provides a computer program product that, when run on a computer, causes the computer to perform the aforementioned steps to implement the multi-lead electrocardiogram detection method described in the above embodiment.

[0127] In addition, embodiments of this application also provide an apparatus, which may specifically be a chip, component or module. The apparatus may include a connected processor and a memory; wherein the memory is used to store computer execution instructions. When the apparatus is running, the processor may execute the computer execution instructions stored in the memory to cause the chip to execute the multi-lead electrocardiogram detection method in the above method embodiments.

[0128] In this embodiment, the electronic devices (such as smartwatches), computer storage media, computer program products, or chips are all used to execute the corresponding methods provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0129] Through the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0130] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another apparatus, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0131] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A multi-lead electrocardiogram (ECG) detection method, characterized in that, The method is applied in electronic devices, which include a first detection electrode, a second detection electrode, and a third detection electrode for collecting electrical signals from the human body surface. The multi-lead electrocardiogram (ECG) detection method includes: In response to the first operation, potential signals on the surfaces of the two upper limbs and the lower limb of the human body are acquired; wherein, the first operation is the operation of the first detection electrode contacting one upper limb of the human body, the second detection electrode contacting the other upper limb of the human body, and the third detection electrode contacting the lower limb of the human body. In response to the second operation, potential signals of six equivalent positions on the surface of the human chest are acquired sequentially; wherein, the second operation is the operation of the first detection electrode contacting one upper limb of the human body, the second detection electrode contacting the other upper limb of the human body, and the third detection electrode sequentially contacting the six equivalent positions on the human chest. The six equivalent positions on the chest are six positions after the six preset positions on the chest have been moved a preset distance toward the two upper limbs respectively. The preset distance is the distance between the Wilson center point established when the first detection electrode contacts one upper limb of the human body, the second detection electrode contacts the other upper limb of the human body, and the third detection electrode contacts the lower limb of the human body, and the second center point established when the first detection electrode contacts one upper limb of the human body and the second detection electrode contacts the other upper limb of the human body. Based on the potential signals of the surfaces of the two upper and lower limbs of the human body and the potential signals of the surfaces of the six equivalent positions on the front of the human chest, the electrocardiogram signals corresponding to the twelve leads are determined. The six preset positions include a first preset position, a second preset position, a third preset position, a fourth preset position, a fifth preset position, and a sixth preset position. The first preset position is the fourth intercostal space at the right edge of the sternum. The second preset position is the fourth intercostal space at the left edge of the sternum. The third preset position is located at the midpoint of the line connecting the second preset position and the fourth preset position. The fourth preset position is the intersection of the left midclavicular line and the fifth intercostal space. The fifth preset position is at the same level as the left anterior axillary line and the fourth preset position. The sixth preset position is at the same level as the left midaxillary line and the fourth preset position.

2. The multi-lead electrocardiogram detection method according to claim 1, characterized in that, Also includes: The acquired potential signals from the surfaces of the two upper and lower limbs of the human body are processed to determine the electrocardiogram signals corresponding to the six limb leads.

3. The multi-lead electrocardiogram detection method according to claim 2, characterized in that, The two upper limbs include the left upper limb and the right upper limb; The acquired potential signals from the surfaces of the two upper and lower limbs of the human body are processed to determine the electrocardiogram signals corresponding to the six limb leads, including: The electrocardiogram signal corresponding to lead I is determined based on the potential difference between the potential signal on the surface of the left upper limb and the potential signal on the surface of the right upper limb. The electrocardiogram signal corresponding to lead II is determined based on the potential difference between the potential signal on the surface of the lower limb and the potential signal on the surface of the right upper limb. The electrocardiogram signal corresponding to lead III is determined based on the potential difference between the potential signal on the surface of the lower limb and the potential signal on the surface of the left upper limb. The potential of the Wilson center point is determined, and the electrocardiogram (ECG) signals corresponding to lead aVR, lead aVL, and lead aVF are determined based on the potential differences between the potential of the Wilson center point and the potential signals of the left upper limb surface, the right upper limb surface, and the lower limb surface, respectively.

4. The multi-lead electrocardiogram detection method according to claim 1, characterized in that, Also includes: The potential signals of the two upper limbs and six equivalent positions on the chest of the human body are processed to obtain the electrocardiogram signals corresponding to the six precordial leads.

5. The multi-lead electrocardiogram detection method according to claim 4, characterized in that, The acquired potential signals from the two upper limbs and six equivalent positions on the chest of the human body are processed to obtain the electrocardiogram signals corresponding to the six precordial leads, including: The potential signal of the second center point is determined, and the electrocardiogram (ECG) signals corresponding to leads V1, V2, V3, V4, V5, and V6 are determined based on the potential differences between the potential of the second center point and the potential signals of the six equivalent positions on the front of the human chest.

6. The multi-lead electrocardiogram detection method according to claim 1, characterized in that, Before sequentially acquiring the potential signals of the six equivalent locations on the surface of the human chest in response to the second operation, the procedure also includes: The first interface is displayed, which includes a first information prompt box. The first information prompt box is used to indicate six equivalent positions on the chest.

7. The multi-lead electrocardiogram detection method according to claim 6, characterized in that, In response to the second operation, before sequentially acquiring the potential signals of six equivalent locations on the surface of the human chest, the procedure further includes: Acquire a preview image of the upper body of a human body captured by a camera; The target objects in the preview image are determined sequentially, wherein the target objects include six equivalent locations on the front of the human chest.

8. An electronic device, characterized in that, include: One or more processors; Memory; And one or more computer programs, wherein the one or more computer programs are stored on the memory, and when the computer programs are executed by the one or more processors, cause the electronic device to perform the multi-lead electrocardiogram detection method according to any one of claims 1 to 7.

9. The electronic device according to claim 8, characterized in that, The electronic device also includes a first detection electrode, a second detection electrode, and a third detection electrode for collecting electrical signals from the human body surface.

10. The electronic device according to claim 8 or 9, characterized in that, It also includes a display screen for showing the electrocardiogram signals corresponding to the twelve leads.

11. The electronic device according to claim 8, characterized in that, The electronic devices include mobile phones or smart wearable devices.

12. A multi-lead electrocardiogram (ECG) detection system, characterized in that, It includes a first electronic device and a second electronic device; the first electronic device includes a first detection electrode, a second detection electrode, and a third detection electrode for collecting electrical signals from the human body surface; The second electronic device includes: One or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory and, when executed by the one or more processors, cause the system to perform the multi-lead electrocardiogram detection method according to any one of claims 1 to 7.

13. The multi-lead electrocardiogram detection system according to claim 12, characterized in that, The first electronic device includes a smart wearable device, and the second electronic device includes a mobile phone.

14. A multi-lead electrocardiogram (ECG) detection system, characterized in that, It includes a first electronic device and a second electronic device; the first electronic device includes a first detection electrode, a second detection electrode, and a third detection electrode for collecting electrical signals from the human body surface; In response to the first operation, the first electronic device is used to acquire the potential signals of the surfaces of the two upper limbs and the lower limbs of the human body, and send the potential signals of the surfaces of the two upper limbs and the lower limbs of the human body to the second electronic device; wherein, the first operation is the operation of the first detection electrode contacting one upper limb of the human body, the second detection electrode contacting the other upper limb of the human body, and the third detection electrode contacting the lower limb of the human body. In response to the second operation, the first electronic device is further configured to sequentially acquire the potential signals of the six equivalent positions on the surface of the human chest, and send the potential signals of the six equivalent positions on the surface of the human chest to the second electronic device; wherein, the second operation is the operation of the first detection electrode contacting one upper limb of the human body, the second detection electrode contacting the other upper limb of the human body, and the third detection electrode sequentially contacting the six equivalent positions on the chest of the human body, wherein the six equivalent positions on the chest are six positions after the six preset positions on the chest have been moved a preset distance toward the two upper limbs respectively, and the preset distance is the distance between the Wilson center point established when the first detection electrode contacts one upper limb of the human body, the second detection electrode contacts the other upper limb of the human body, and the third detection electrode contacts the lower limb of the human body, and the second center point established when the first detection electrode contacts one upper limb of the human body and the second detection electrode contacts the other upper limb of the human body; The second electronic device is used to determine the electrocardiogram signal corresponding to the twelve leads based on the potential signals of the surfaces of the two upper limbs and the lower limbs of the human body and the potential signals of the surfaces of the six equivalent positions on the front of the human chest. The six preset positions include a first preset position, a second preset position, a third preset position, a fourth preset position, a fifth preset position, and a sixth preset position. The first preset position is the fourth intercostal space at the right edge of the sternum. The second preset position is the fourth intercostal space at the left edge of the sternum. The third preset position is located at the midpoint of the line connecting the second preset position and the fourth preset position. The fourth preset position is the intersection of the left midclavicular line and the fifth intercostal space. The fifth preset position is at the same level as the left anterior axillary line and the fourth preset position. The sixth preset position is at the same level as the left midaxillary line and the fourth preset position.

15. The multi-lead electrocardiogram detection system according to claim 14, characterized in that, The second electronic device is also used to process the potential signals on the surfaces of the two upper limbs and the lower limbs of the human body to determine the electrocardiogram signals corresponding to the six limb leads.

16. The multi-lead electrocardiogram detection system according to claim 15, characterized in that, The two upper limbs include the left upper limb and the right upper limb; The second electronic device is further configured to determine the electrocardiogram (ECG) signal corresponding to lead I based on the potential difference between the potential signal on the surface of the left upper limb and the potential signal on the surface of the right upper limb; determine the ECG signal corresponding to lead II based on the potential difference between the potential signal on the surface of the lower limb and the potential signal on the surface of the right upper limb; determine the ECG signal corresponding to lead III based on the potential difference between the potential signal on the surface of the lower limb and the potential signal on the surface of the left upper limb; and determine the potential of the Wilson center point, and determine the ECG signals corresponding to lead aVR, lead aVL, and lead aVF based on the potential differences between the potential of the Wilson center point and the potential signals on the surfaces of the left upper limb, the right upper limb, and the lower limb, respectively.

17. The multi-lead electrocardiogram detection system according to claim 14, characterized in that, The second electronic device is also used to process the potential signals of the two upper limbs of the human body and the six equivalent position surfaces of the chest of the human body to obtain the electrocardiogram signals corresponding to the six precordial leads.

18. The multi-lead electrocardiogram detection system according to claim 17, characterized in that, The second electronic device is further configured to determine the potential signal of the second center point, and to determine the electrocardiogram (ECG) signals corresponding to lead V1, lead V2, lead V3, lead V4, lead V5, and lead V6 based on the potential differences between the potential of the second center point and the potential signals of the six equivalent positions on the front of the human chest.

19. The multi-lead electrocardiogram detection system according to claim 14, characterized in that, The first electronic device is also used to display a first interface, the first interface including a first information prompt box, the first information prompt box being used to indicate six equivalent positions on the chest.

20. The multi-lead electrocardiogram detection system according to claim 19, characterized in that, The first electronic device is also used to acquire a preview image of the upper body of a human body captured by a camera, and to sequentially determine the target objects in the preview image, wherein the target objects include six equivalent positions on the front of the human chest.

21. The multi-lead electrocardiogram detection system according to claim 14, characterized in that, The second electronic device is also used to send the electrocardiogram signal corresponding to the twelve leads to the first electronic device; The first electronic device is also used to output a health status reminder when it determines that the electrocardiogram signal corresponding to the twelve leads does not match the electrocardiogram signal corresponding to the preset twelve leads.

22. The multi-lead electrocardiogram detection system according to claim 14, characterized in that, The second electronic device is also used to output health status reminder information to the first electronic device when it is determined that the electrocardiogram signal corresponding to the twelve leads does not match the electrocardiogram signal corresponding to the preset twelve leads; The first electronic device is also used to alert the user via declaration and / or alarm.

23. The multi-lead electrocardiogram detection system according to any one of claims 14-22, characterized in that, The first electronic device includes a smart wearable device, and the second electronic device includes a mobile phone.

24. A computer-readable storage medium comprising a computer program, characterized in that, When the computer program is run on an electronic device, the electronic device performs the multi-lead electrocardiogram detection method as described in any one of claims 1-7.

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