Method and system for correcting electrode patch placement position

Abstract

One or more embodiments of the present specification relate to a method and system for correcting electrode patch placement position for a health monitoring device, the method for correcting electrode patch placement position comprising: obtaining an initial lead image of an initial position of a user placing an electrode patch; obtaining a standard lead image of the electrode patch placed in a standard position; determining a correlation coefficient between the initial lead image and the standard lead image based on the initial lead image and the standard lead image; and generating a correction feedback based on the correlation coefficient, the correction feedback for prompting the user whether the electrode patch is placed in the standard position.

Description

Technical Field

[0001] This specification relates to the field of medical equipment technology, and in particular to a method and system for correcting the placement of an electrode. Background Art

[0002] In order to facilitate the tracking of the user's physical condition, the user is usually required to perform self-tests using health monitoring equipment (such as an electrocardiograph). When using health monitoring equipment, the user needs to select the ideal placement position for the electrode pad, and then place the electrode pad on the same position on the body according to the ideal placement position. However, when the user places the electrode pads on their own, there may be inaccurate placement positions. Especially when multiple electrode pads need to be placed, the error between the ideal placement position and the actual placement position is even greater, which will affect the accuracy of the collected lead signal to a certain extent. Summary of the Invention

[0003] One of the embodiments of the present specification provides a method for correcting the placement position of an electrode sheet, which is used for a health monitoring device. The method for correcting the placement position of an electrode sheet includes: obtaining an initial lead image of the initial position where the user places the electrode sheet; obtaining a standard lead image of the electrode sheet placed in a standard position; determining a correlation coefficient between the initial lead image and the standard lead image based on the initial lead image and the standard lead image; and generating correction feedback based on the correlation coefficient, wherein the correction feedback is used to prompt the user whether the electrode sheet is placed in the standard position.

[0004] One of the embodiments of the present specification provides a system for correcting the placement position of an electrode sheet, and the system for correcting the placement position of an electrode sheet is used for a health monitoring device, and the system for correcting the placement position of an electrode sheet includes: a first acquisition module, used to obtain an initial lead image of the initial position where the user places the electrode sheet; a second acquisition module, used to obtain a standard lead image when the electrode sheet is placed in a standard position; a correlation coefficient determination module, used to determine the correlation coefficient between the initial lead image and the standard lead image based on the initial lead image and the standard lead image; and a correction feedback generation module, used to generate correction feedback based on the correlation coefficient, and the correction feedback is used to prompt the user whether the electrode sheet is placed in the standard position.

[0005] One of the embodiments of this specification provides a device for correcting the placement position of an electrode sheet, and the device for correcting the placement position of an electrode sheet is used for health monitoring equipment. The device for correcting the placement position of an electrode sheet includes at least one processor and at least one memory; the at least one memory is used to store computer instructions; and the at least one processor is used to execute at least part of the computer instructions to implement the method for correcting the placement position of an electrode sheet as described in the aforementioned embodiment.

[0006] One of the embodiments of this specification provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed by a processor, the method for correcting the placement position of an electrode sheet as described in the above embodiment is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0008] Figure 1 is a schematic diagram of an application scenario of an electrode placement correction system according to some embodiments of this specification;

[0009] Figure 2 is an exemplary flow chart of a method for correcting electrode placement according to some embodiments of this specification;

[0010] Figure 3 is a schematic diagram of the standard positions of precordial leads according to some embodiments of this specification;

[0011] Figure 4 is a schematic diagram of a display interface according to some embodiments of this specification;

[0012] Figure 5 The initial lead image and the standard lead image shown in some embodiments of this specification;

[0013] Figure 6 is with Figure 5 Schematic diagram of the display interface corresponding to the correlation coefficient;

[0014] Figure 7 The initial lead image and the standard lead image shown in other embodiments of this specification;

[0015] Figure 8 is with Figure 7 Schematic diagram of the display interface corresponding to the correlation coefficient;

[0016] Figure 9 The initial lead image and the standard lead image shown in some embodiments of this specification;

[0017] Figure 10 is with Figure 9 Schematic diagram of the display interface corresponding to the correlation coefficient;

[0018] Figure 11 The initial lead image and the standard lead image shown in some embodiments of this specification;

[0019] Figure 12 is with Figure 11 Schematic diagram of the display interface corresponding to the correlation coefficient;

[0020] Figure 13 is a schematic diagram of a module of an electrode placement correction system according to some embodiments of this specification;

[0021] Figure 14 This is an exemplary flowchart of a user correcting the placement of an electrode pad according to some embodiments of this specification. DETAILED DESCRIPTION

[0022] To more clearly illustrate the technical solutions of the embodiments of this specification, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this specification. Those skilled in the art can apply this specification to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0023] It should be understood that the terms "system," "device," and / or "module" used herein are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, other terms may be used to replace the terms if they achieve the same purpose.

[0024] As used in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not refer to the singular but also include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0025] Flowcharts are used throughout this specification to illustrate the operations performed by systems according to embodiments of this specification. It should be understood that preceding or following operations do not necessarily need to be performed in exact order. Instead, the steps may be processed in reverse order or simultaneously. Furthermore, other operations may be added to these processes, or one or more operations may be removed from these processes.

[0026] In some embodiments, to facilitate tracking of a user's physical condition, the user is typically required to perform a health monitoring test themselves using a health monitoring device. A health monitoring device may be a device that uses electrodes to capture bioelectrical signals generated by a specific part of the subject and converts them into corresponding lead images. Exemplary health monitoring devices may include an electrocardiograph (ECG), an electroencephalogram (EEG), or an electromyograph (EMG). For example, an ECG can have its electrodes placed on a specific part of the subject's chest and connected to the device via lead wires. The ECG generates an electrocardiogram (ECG) based on the captured lead signals, which can reflect changes in the subject's heart activity. Similarly, if the health monitoring device is an electroencephalogram (EEG), the electrodes are placed on the subject's brain. The EEG generates an electroencephalogram (EEG) based on the captured lead signals, which can reflect changes in brain activity from different observation angles. In some embodiments, health monitoring devices can utilize methods including single-lead and multi-lead detection devices. A single lead may involve placing a single electrode on the subject's test area to generate a single lead signal. Multi-lead can refer to placing multiple electrodes on different detection parts of the subject at the same time, thereby generating multiple lead signals.

[0027] In some embodiments, when the electrode sheets are placed in different positions, different lead signals can be obtained, and different lead signals can reflect the activity changes of the detection part (for example, the heart) of the subject under different observation angles. Therefore, in order to obtain the ideal lead signal, the user needs to select the ideal placement position of the electrode sheet when using the health monitoring device, and then place the electrode sheet on the same position of the body. However, when the user places the electrode sheet by himself, there may be inaccurate placement. Especially when multiple electrode sheets need to be placed, the error between the ideal placement position and the actual placement position is greater, which will affect the accuracy of the collected lead signal to a certain extent.

[0028] Based on the above situation, some embodiments of the present specification provide an electrode placement position correction method, which can obtain a lead image when the electrode is in an ideal placement position and a lead image when the electrode is in an actual placement position, and calculate the correlation coefficient between the two lead images, and then generate correction feedback based on the correlation coefficient, thereby helping the user to correct the actual placement position of the electrode.

[0029] Figure 1 This is a schematic diagram of an application scenario of a system for correcting electrode placement for health monitoring equipment according to some embodiments of this specification. Figure 1As shown, in some embodiments, a system for correcting electrode patch placement position of a health monitoring device (or referred to as electrode patch placement position correction system 100) can include a health monitoring device 110, a server 120, a network 130, and a user’s personal device 140.

[0030] In some embodiments, the server 120 can be configured to process information and / or data related to the lead signals, the lead images. The server 120 can be a standalone server or a group of servers. The group of servers can be centralized or distributed (e.g., the server 120 can be a distributed system). In some embodiments, the server 120 can be local or remote. For example, the server 120 can access information and / or data stored in the user’s personal device 140, the storage device 150 via the network 130. In some embodiments, the server 120 can directly connect to the user’s personal device 140, the storage device 150 to access information and / or data stored therein. In some embodiments, the server 120 can be executed on a cloud platform.

[0031] In some embodiments, the server 120 can include a processing device 122. In some embodiments, the processing device 122 can process data and / or information related to the lead signals, the lead images corresponding to the lead signals to perform the functions described in the embodiments. For example, the processing device 122 can receive information and / or data sent by the health monitoring device 110 and analyze and determine the same.

[0032] The network 130 can facilitate exchange of data and / or information. In some embodiments, one or more components of the electrode patch placement position correction system 100 (e.g., the health monitoring device 110, the server 120, the user’s personal device 140, the storage device 150) can send data and / or information to other components of the electrode patch placement position correction system 100 via the network 130. In some embodiments, the network 130 can be any type of wired or wireless network. In some embodiments, at least one user’s personal device 140 can be in communication and / or connection with the health monitoring device 110, the processing device 122, and / or the storage device 150. For example, the lead signals, the lead images of a subject obtained by the processing device 122 can be stored in the storage device 150.

[0033] In some embodiments, the user’s personal device 140 can include a display interface. The display interface refers to a page displayed on the screen of the user’s personal device 140. The display interface can be configured to display images, texts, or buttons / options that can be operated by the user. The user can achieve corresponding functions by operating the contents in the display interface. For example, the user can click on a lead position (e.g., a lead position on a lead image) on the screen of the user’s personal device 140 to obtain information related to the lead position. Figure 3The standard position of the electrode patch can be displayed on the display interface of the personal device 140 or the display device of the health monitoring device 110. In some embodiments, the health monitoring device 110 can include a display device (not shown in the figure), which can also include the display interface. The processing device 122 can display specific content through the display interface of the personal device 140 and / or the display device of the health monitoring device 110.

[0034] Figure 2 is an exemplary flowchart for correcting the placement position of the electrode patch of the health monitoring device according to some embodiments of the present specification. In some embodiments, the method for correcting the placement position of the electrode patch of the health monitoring device (or referred to as the electrode patch placement position correction method 200) can be executed by the electrode patch placement position correction system 100 (such as the processing device 122). For example, the electrode patch placement position correction method 200 can be stored in the form of a program or instructions in the storage device (such as the storage device 150), and when the electrode patch placement position correction system 100 (such as the server 120) executes the program or instructions, the electrode patch placement position correction method 200 can be implemented.

[0035] Step 210, obtaining an initial lead image of an initial position of the electrode patch placed by the user. In some embodiments, step 210 can be executed by the first acquisition module 1310.

[0036] The initial position can refer to the position of the electrode patch placed by the user before the correction of the electrode patch position. In some application scenarios, before the examination using the health monitoring device 110, the examinee needs to place the electrode patch on the specified examination site according to the examination target to obtain suitable lead signals. In some embodiments, since the lead signals obtained when the electrode patch is placed in different positions are different, before placing the electrode patch, the user needs to select the placement position of the electrode patch to be corrected, and then place the electrode patch on the corresponding body part, so as to correct the position of the electrode patch. In this process, the position of the body part of the user on which the electrode patch is placed is the initial position. For example, as shown in Figure 3 and Figure 4 as shown, Figure 3 exemplary shows the standard placement position (i.e., the standard position) of the electrode patch of the precordial six-lead system. Among them, the standard position of the electrode patch includes “V1” to “V6”, before placing the electrode patch, the user can select at least one placement position to be corrected, and place the electrode patch on the body part corresponding to the selected position.

[0037] In some embodiments, the user can select the standard position on the display interface of the personal device 140 or the display device of the health monitoring device 110. Figure 4The display interface on the display device of the personal device 140 or the health monitoring device 110 is shown. The left side of the display interface includes standard positions "V1" to "V6" and corresponding status bars. The status bar can display the on status of "V1" to "V6". When one or more of "V1" to "V6" are selected, the corresponding status bar will turn on and light up. For example, Figure 4 In the example, “V1” is selected, so the status bar corresponding to “V1” is turned on. The right side of the display interface includes information related to the calibration mark, which can be found in step 240 for more details.

[0038] The initial lead image may refer to a lead image generated by the health monitoring device 110 based on the lead signals obtained when the electrode pads are placed in the initial position. In some embodiments, the type of lead image depends on the type of health monitoring device. For example, when the health monitoring device 110 is an electrocardiograph, the lead image is an electrocardiogram (ECG) image. When the health monitoring device 110 is an electroencephalogram (EEG) device, the lead image is an electroencephalogram (EEG) image. In some embodiments, the processing device 122 may obtain the initial lead image from the health monitoring device 110 via a wired or wireless connection.

[0039] Step 220 : Acquire a standard lead image with the electrodes placed in a standard position. In some embodiments, step 220 may be performed by the second acquisition module 1320 .

[0040] The standard position may refer to the placement of the electrode pads specified by the industry or given by medical staff. When the electrode pads are placed in the standard position, the accuracy of the obtained lead signal can be improved. Figure 3 The standard positions of the six chest leads are shown as an example. Figure 3 The positions corresponding to "V1" to "V6" are the standard positions of the electrodes. The standard lead image may be a lead image generated by the health monitoring device 110 based on the lead signals obtained when the electrodes are placed in the standard positions.

[0041] In some embodiments, the source of the standard lead image may include historical placement images of the user placing the electrode pad in the standard position, pre-stored images of the user placing the electrode pad in the standard position, and big data images of the user placing the electrode pad in the standard position in big data.

[0042] A historical placement image may refer to a lead image generated by the health monitoring device 110 when the user places the electrode pads in the standard position during the user's previous use of the health monitoring device 110. For example, after the user adjusts the electrode pads to the correct position under the doctor's face-to-face or video guidance, the lead image generated by the health monitoring device 110 is a standard lead image, which can be used as a historical placement image. In some embodiments, the user can save the generated standard lead image as a historical placement image. For example, when the user places the electrode pads in the standard position and generates a standard lead image, the display device of the health monitoring device 110 or the display screen of the user's personal device 140 may display a "Save Lead Image" dialog box, and the user can save it by clicking on the dialog box. In some embodiments, when the user places the electrode pads in the standard position and generates a standard lead image, the processing device 122 may automatically save the lead image as a historical placement image.

[0043] The pre-stored image may refer to a lead image pre-stored by a medical staff for a user and generated by the health monitoring device 110 when the electrode pads are placed in a standard position. In some embodiments, before the user uses the health monitoring device 110 by himself, the medical staff may set up the health monitoring device 110 for the user, determine the lead image corresponding to each standard position, and store it. As an example only, the medical staff may place the electrode pads on specific body parts of the user in sequence based on each standard position, and then generate corresponding standard lead images one by one through the health monitoring device 110 and store them. Among them, since the position where the medical staff places the electrode pads is relatively accurate, the position where the medical staff places the electrode pads can be regarded as the standard position.

[0044] The big data image may refer to lead images generated by the health monitoring device 110 when the electrodes of several other users are placed in standard positions and stored in a database (e.g., the storage device 150). In some embodiments, the processing device 122 may directly obtain the big data image from the storage device.

[0045] It should be noted that step 210 and step 220 provided in this specification are for illustrative purposes only and are not intended to limit the sequential relationship between the two steps. In other embodiments, the order of step 210 and step 220 can be interchanged. For example, the processing device 122 can first obtain a standard lead image when the electrode sheet is placed in the standard position. Then obtain an initial lead image when the electrode sheet is placed in the initial position. In some alternative embodiments, the order of step 210 and step 220 can be performed simultaneously. For example, the processing device 122 obtains the standard lead image when the electrode sheet is placed in the standard position while obtaining the initial lead image when the electrode sheet is placed in the initial position. Such variations are all within the scope of protection of this specification.

[0046] Step 230 : Determine a correlation coefficient between the initial lead image and the standard lead image based on the initial lead image and the standard lead image. In some embodiments, step 230 may be performed by the correlation coefficient determination module 1330 .

[0047] In some embodiments, after determining the initial lead signal and the standard lead image, processing device 122 may determine a correlation between the initial lead image and the standard lead image, thereby determining a deviation between the initial position and the standard position. In some embodiments, the correlation between the initial lead image and the standard lead image may include a correlation between the waveform of the initial lead image and the waveform of the standard lead image. In some embodiments, processing device 122 may determine a correlation coefficient between the initial lead image and the standard lead image, and determine the correlation between the initial lead image and the standard lead image based on the correlation coefficient.

[0048] In some embodiments, when the source of the standard lead image is one of a historical placement image of the user placing the electrode in the standard position, a pre-stored image of the user placing the electrode in the standard position, and a big data image of the electrode placed in the standard position in the big data, the processing device 122 can directly use this type of image as the standard lead image and calculate the correlation coefficient in combination with the initial lead image.

[0049] In some embodiments, when the standard lead image includes at least two of the following: a historical placement image of the user placing the electrode pad in the standard position, a pre-stored image of the user placing the electrode pad in the standard position, and a large data image of the electrode pad in the standard position in the big data, the processing device 122 may calculate correlation coefficients between different types of standard lead images and the initial lead image, and then determine a final correlation coefficient based on each correlation coefficient. By way of example only, the standard lead image may include a historical placement image of the user placing the electrode pad in the standard position, a pre-stored image of the user placing the electrode pad in the standard position, and a large data image of the electrode pad in the standard position in the big data. The processing device 122 may determine a first correlation coefficient based on the historical placement image of the user placing the electrode pad in the standard position and the initial lead image; determine a second correlation coefficient based on the pre-stored image of the user placing the electrode pad in the standard position and the initial lead image; determine a third correlation coefficient based on the large data image of the electrode pad in the standard position and the initial lead image; and then use the median or average of the first, second, and third correlation coefficients as the correlation coefficient between the initial lead image and the standard lead image.

[0050] In some embodiments, the type of correlation coefficient may include a Pearson correlation coefficient, a Gamma coefficient, a Dyx coefficient, a Spearman rank correlation coefficient, etc. As an example only, this specification will take the Pearson correlation coefficient as an example for description. Specifically, the processing device 122 may determine the Pearson correlation coefficient between the initial lead image and the standard lead image based on the following formula:

[0051]

[0052] Among them, X can represent the set of vertical coordinate values ​​corresponding to the waveform in the initial lead image at several moments, and Y can represent the set of vertical coordinate values ​​corresponding to the waveform in the standard lead image at several moments. Figure 5 For example, Figure 5 The horizontal axis represents the time (in seconds) of the waveform, and the vertical axis represents the voltage value (in millivolts) of the waveform. Curve 510 represents the waveform of the initial lead image, and curve 520 represents the waveform of the standard lead image. X may include a set of horizontal coordinate values ​​corresponding to the horizontal coordinate values ​​of curve 510 of 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, and 0.8, and Y may include a set of horizontal coordinate values ​​corresponding to the horizontal coordinate values ​​of curve 520 of 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, and 0.8. cov(X, Y) may represent the covariance of X and Y. It can represent the variance of X and the variance of Y.

[0053] In some embodiments, the processing device 122 may be configured to XY The value of is used to determine the correlation between the initial lead image and the standard lead image. Figure 5 、 Figure 7 、 Figure 9 and Figure 11 The initial lead image waveforms and the standard lead image waveforms when the electrode sheet is placed at four different initial positions are shown respectively, and the correlation coefficient between the initial lead image and the standard lead image is calculated.

[0054] As an example only, when ρ XY When the value of is greater than 0 and less than 1, it means that X and Y are positively correlated, that is, the waveform of the initial lead image is positively correlated with the waveform of the standard lead image. In this case, it can be considered that the initial position and the standard position are both located on the same side of the part to be detected. For example, Figure 3 As shown, Figure 3 Two placement positions of electrode pads when monitoring the heart are shown. Figure 3The O in the figure represents the position of the heart, and T1 and T2 represent the two positions where the user places the electrode sheet, namely the initial positions. The initial position T1 and the standard position V2 are both located on the same side of the heart O, and the initial position T2 and the standard position V2 are respectively located on opposite sides of the heart O. In this embodiment, being located on the same side of the heart O may mean that the angle between the line connecting the initial position T1 and the heart O and the line connecting the standard position V2 and the heart O is less than a set threshold value (for example, 60 degrees, 30 degrees, etc.). Being located on opposite sides of the heart O in this embodiment may mean that the angle between the line connecting the initial position T1 and the heart O and the line connecting the standard position V2 and the heart O is greater than a set threshold value (for example, 60 degrees, 30 degrees, etc.). In some embodiments, when the initial position T1 and the standard position V2 are both located on the same side of the heart O, ρ XY The value of is positively correlated with the distance between the initial position T1 and the standard position V2. For example, when ρ XY When the value of is within the range of 0-0.2, it can be considered that X and Y are very weakly correlated. XY When the value of is in the range of 0.2-0.4, it can be considered that X and Y are weakly correlated. Figure 5 As shown, when ρ XY When the value of is within the range of 0.4-0.6, it can be considered that X and Y are moderately correlated, that is, the waveform of the initial lead image (i.e., curve 510) and the waveform of the standard lead image (i.e., curve 520) are moderately correlated. Figure 5 The corresponding initial position and standard position are both located on the same side of the part to be detected. XY When the value of is within the range of 0.6-0.8, X and Y can be considered to be strongly correlated. Figure 7 As shown, when ρ XY When the value of is within the range of 0.8-1, it can be considered that S and Y are extremely correlated, that is, the waveform of the initial lead image (i.e., curve 710) and the waveform of the standard lead image (i.e., curve 720) are extremely correlated. Figure 7 The corresponding initial position and standard position are both located on the same side of the part to be tested, and, Figure 7 The distance between the corresponding initial position and the standard position is less than Figure 5 The distance between the corresponding initial position and the standard position. XY When the value of is 1, it can be considered that X and Y are completely positively correlated, that is, the waveform of the initial lead image and the waveform of the standard lead image are exactly the same, that is, the initial position and the standard position completely overlap.

[0055] In another example, when ρ XY When the value of is greater than -1 and less than 0, it means that X and Y are negatively correlated, that is, the waveform of the initial lead image is negatively correlated with the waveform of the standard lead image. For example, Figure 3As shown, the initial position T2 and the standard position V2 are located on opposite sides of the heart O, respectively. The opposite sides of the heart O in this embodiment can mean that the angle between the line connecting the initial position T1 and the heart O and the line connecting the standard position V2 and the heart O is greater than a set threshold (e.g., 60 degrees, 30 degrees, etc.). In some embodiments, when the initial position T2 and the standard position V2 are both located on opposite sides of the heart O, the greater the distance between the initial position T2 and the standard position V2, the smaller the value of p XY , and the smaller the distance between the initial position T2 and the standard position V2, the greater the value of p XY . For example, as shown in FIGS. Figure 9 and Figure 11 , the correlation coefficient in Figure 9 is -0.272, Figure 11 , the correlation coefficient in Figure 11 is -0.8917, thus, Figure 9 the negative correlation between the waveform of the initial lead image (i.e., curve 1110) and the waveform of the standard lead image (i.e., curve 1120) in Figure 9 is stronger than the negative correlation between the waveform of the initial lead image (i.e., curve 910) and the waveform of the standard lead image (i.e., curve 920) in Figure 10 , indicating that Figure 9 the corresponding initial position and the standard position are located on opposite sides of the to-be-detected part, respectively, and Figure 10 the distance between the corresponding initial position and the standard position is less than the distance between When the value of p XY is -1, it means that X and Y are in a complete negative correlation, i.e., the waveform of the initial lead image and the waveform of the standard lead image are in a complete negative correlation, indicating that the initial position and the standard position at this time are not only located on opposite sides of the to-be-detected part, but also the distance between the initial position and the standard position is too large.

[0056] In yet another example, when the value of p XY is 0, it means that X and Y are not correlated, i.e., the waveform of the initial lead image and the waveform of the standard lead image are not correlated, i.e., the deviation between the initial position and the standard position is large.

[0057] In some embodiments, the processing device 122 can also determine the correlation coefficient between the initial lead image and the standard lead image based on a correlation coefficient determination model. The processing device 122 can input the lead signals or the initial lead image and the standard lead image generated based on the lead signals to the correlation coefficient determination model. The output of the correlation coefficient determination model can include the correlation coefficient. In some embodiments, the correlation coefficient determination model can be a machine learning model. The correlation coefficient determination model can be a trained machine learning model. The machine learning model can include various models and structures, such as a deep neural network model, a recurrent neural network model, a custom model structure, etc.

[0058] In some embodiments, when training the correlation coefficient determination model, a plurality of lead signals or initial lead images and standard lead images generated based on the lead signals with labels (or referred to as identifications) can be used as training data, and the training can be performed by common methods such as gradient descent, etc., so that the parameters of the model can be learned. In some embodiments, the correlation coefficient determination model can be trained in another device or module.

[0059] In some embodiments, the processing device 122 can also correct the placement position of the electrode patch by comparing the features of the initial lead image and the standard lead image. Taking the electrocardiograph as an example, the waveform of the lead image (i.e., electrocardiogram) generated by the electrocardiograph can include one or more cardiac cycles, and the heart will fluctuate (systole and diastole) in each cardiac cycle. When the heart fluctuates, the electrocardiogram waveform will correspondingly generate a peak value (i.e., the position of the maximum value of the ordinate in a cardiac cycle). In some embodiments, the processing device 122 can obtain an initial electrocardiogram with the electrode patch placed at the initial position and a standard electrocardiogram with the electrode patch placed at the standard position; determine the mutual relationship and the correlation direction of the waveforms of the initial electrocardiogram and the standard electrocardiogram; determine the closeness of the correlation of the waveforms of the initial electrocardiogram and the standard electrocardiogram based on the mutual relationship and the correlation direction of the waveforms, the closeness of the correlation having a value between -1 and 1; the closer the value of the closeness of the correlation to 1, the closer the initial position to the standard position; the closer the value of the closeness of the correlation to 0, the less accurate the initial position, which needs to be adjusted again; the closer the value of the closeness of the correlation to -1, the opposite of the initial position to the standard position (for example, the initial position and the standard position are located on opposite sides of the part to be detected), which needs to be adjusted again. The mutual relationship of the waveforms can refer to the fitting degree of the waveforms. The correlation direction of the waveforms can refer to the positive and negative values of the waveforms at the same time. For example, when the ordinate of the waveforms of the initial electrocardiogram and the standard electrocardiogram at the same time is positive or negative, the waveforms of the initial electrocardiogram and the standard electrocardiogram are positively correlated. When the ordinate of the waveforms of the initial electrocardiogram and the standard electrocardiogram at the same time is positive and negative, respectively, the waveforms of the initial electrocardiogram and the standard electrocardiogram are negatively correlated.

[0060] In step 240, a correction feedback is generated based on the correlation coefficient, and the correction feedback is used to prompt the user whether the electrode patch is placed at the standard position. In some embodiments, step 240 can be performed by the correction feedback generation module 1340.

[0061] In some embodiments, the processing device 122 can directly display the correlation coefficient through the display device of the health monitoring device 110 or the personal device 140 of the user, so that the user can intuitively understand the correlation between the initial lead image and the standard lead image.

[0062] In some embodiments, the processing device 122 can generate correction feedback based on the correlation coefficient to help the user calibrate the position of the electrode. In some embodiments, the processing device 122 can generate voice or text feedback based on the correlation coefficient. Just as an example, when the correlation coefficient is less than 0 and greater than -1, the processing device 122 can control the health monitoring device 110 or the user's personal device 140 to issue a voice message "The electrode position is too far away from the standard position in the opposite direction, please reposition it." In another example, when the correlation coefficient is greater than 0.8 and less than 1, the processing device 122 can display a text box through the display interface of the health monitoring device 110 or the user's personal device 140, "The electrode position is very close to the standard position, please move slightly."

[0063] In some embodiments, combined Figure 1 and Figure 4 As shown, the correction feedback may include a correction mark A, and the processing device 122 may display the correction mark A based on the correlation coefficient. The correction mark A may refer to a mark or pattern reflecting the correlation coefficient. In some embodiments, the user may set parameters such as the shape and color of the correction mark A. In some embodiments, the correction mark A may include patterns such as straight line segments, circular rings, and triangles. For example only, Figure 4 As shown, the correction mark A can be a straight line segment.

[0064] In some embodiments, the processing device 122 may display the correction mark A on the display device of the health monitoring device 110 , or send the correction mark A to the user's personal device 140 and display the correction mark A through the display interface of the user's personal device 140 .

[0065] In some embodiments, the calibration marker A may include a first calibration marker (not shown) and a second calibration marker (not shown). The first calibration marker corresponds to the initial lead image, and the second calibration marker corresponds to the standard lead image. The processing device 122 may determine the relative positions of the first calibration marker and the second calibration marker in the display interface based on the correlation coefficient.

[0066] In some embodiments, to facilitate comparison of the first calibration mark and the second calibration mark, the first calibration mark and the second calibration mark can be set to the same type of mark or pattern. For example, the first calibration mark and the second calibration mark can both be circular rings, and the diameters of the two circular rings are the same. The relative position of the first calibration mark and the second calibration mark in the display interface can refer to the distance between a selected point on the first calibration mark and the second calibration mark. For example, when the first calibration mark and the second calibration mark are circular rings, the relative position can refer to the distance between the centers of the two circular rings.

[0067] In some embodiments, before determining the relative distance between the first calibration mark and the second calibration mark, the first reference position of the first calibration mark on the display interface can be determined, and the second reference position of the second calibration mark on the display interface can be determined. The reference position can refer to the position of a certain point on the calibration mark in the display interface, and the reference position can represent the position of the first calibration mark and the second calibration mark in the display interface. In some embodiments, the reference position can be selected by the user. As an example only, the user can select the pattern of the first calibration mark and the second calibration mark as a ring on the personal device 140, and select the center of the ring as the reference point. The position of the reference point in the display interface is the reference position. In some embodiments, the processing device 122 can default the geometric center of the first calibration mark and the second calibration mark to be the reference point of the first calibration mark and the second calibration mark, and determine its position in the display interface as the reference position.

[0068] In some embodiments, after selecting the reference position, the processing device 122 can determine the distance (or reference distance) between the first reference position and the second reference position based on the correlation coefficient. As an example only, take the first calibration mark and the second calibration mark as rings. The processing device 122 can set the reference distance to be positively correlated with the correlation coefficient. When the correlation coefficient is equal to 0, the processing device 122 can set the reference distance to be equal to the diameter of the ring, that is, the two rings are just tangent. When the correlation coefficient is greater than 0 and less than 1, the processing device 122 can set the reference distance to be less than the diameter of the ring, that is, the two rings intersect, and when the correlation coefficient is closer to 1, the centers of the two rings are closer. When the correlation coefficient is less than 0 and greater than -1, the processing device 122 can set the reference distance to be greater than the diameter of the ring, that is, the two rings do not intersect, and when the correlation coefficient is closer to -1, the centers of the two rings are further apart. Based on this, the user can determine the positive or negative correlation coefficient by whether the two rings intersect, and judge the change in the correlation coefficient by the distance between the centers, thereby determining whether the electrode placement is accurate.

[0069] Figure 5-Figure 12 The initial lead image waveforms and standard lead image waveforms and the corresponding display interfaces are shown when the electrodes are placed at four different initial positions. Among them, the standard position of all electrodes is V1 ( Figure 4 The state corresponding to V1 is open). Figure 6 Yes Figure 5 Schematic diagram of the display interface after the correlation coefficient between the initial lead image and the standard lead image is processed. Figure 8 Yes Figure 7 Schematic diagram of the display interface after the correlation coefficient between the initial lead image and the standard lead image is processed. Figure 10 Yes Figure 9Schematic diagram of the display interface after the correlation coefficient between the initial lead image and the standard lead image is processed. Figure 12 Yes Figure 11 The following is a schematic diagram of the display interface after the correlation coefficient of the initial lead image and the standard lead image is processed. Figure 5 and Figure 6 Taking as an example, the relevant scheme of correcting mark A is described in detail.

[0070] exist Figure 5 In the embodiment shown, the correlation coefficient between the initial lead image and the standard lead image is 0.5379. Figure 6 The display interface shown in the figure includes a trapezoidal wireframe. The trapezoidal wireframe is an isosceles trapezoid, with the two endpoints of the top edge corresponding to the numbers -1 and 1, respectively, and the midpoint of the top edge corresponding to the number 0. The trapezoidal wireframe includes a calibration marker A and a calibration line B. The first ends of the calibration marker and calibration line B intersect at the midpoint of the bottom edge of the trapezoidal wireframe, and calibration line B coincides with the central axis of the trapezoidal wireframe (i.e., the second end of calibration line B intersects the midpoint of the top edge of the trapezoidal wireframe). The second end of calibration marker A can intersect any point on the top edge of the trapezoidal wireframe.

[0071] In some embodiments, the processing device 122 can determine the intersection of the correction mark A and the top edge of the trapezoidal wireframe based on the correlation coefficient, that is, the correlation coefficient is the same as the number corresponding to the second end of the correction mark A. Figure 5 and Figure 6 As shown, when the correlation coefficient is 0.5379, Figure 6 The calibration mark A in the calibration line B is located on the right side of the calibration line. The number corresponding to the second end of the calibration mark A is 0.5379. Figure 7 and Figure 8 As shown, when the correlation coefficient is 0.9047, Figure 7 The calibration mark A in the figure is located on the right side of the calibration line B. The number corresponding to the second end of the calibration mark A is 0.9047, and since Figure 7-Figure 8 The correlation coefficient is greater than Figure 5-Figure 6 The correlation coefficient of Figure 8 The second end of the correction mark A is compared Figure 6 The second end of the correction mark A in is closer to the right end point of the top edge of the trapezoidal wireframe (i.e., the end point corresponding to number 1). Figure 9 and Figure 10 As shown, when the correlation coefficient is -0.0272, Figure 10 The calibration mark A in the calibration line B is located on the left side, and the number corresponding to the second end of the calibration mark A is -0.0272. Figure 11 and Figure 12 As shown, when the correlation coefficient is -0.8917, Figure 12 The calibration mark A in the figure is located on the right side of the calibration line B. The number corresponding to the second end of the calibration mark A is -0.8917, and since Figure 11-12 The correlation coefficient is less than Figure 9-10 The correlation coefficient of Figure 12 The second end of the correction mark A is compared Figure 10 The second end of the correction mark A in is closer to the left endpoint of the top edge of the trapezoidal wireframe (ie, the endpoint corresponding to the number -1).

[0072] In some embodiments, processing device 122 may also reflect the correlation coefficient based on other characteristics of calibration marker A. In some embodiments, processing device 122 may also provide feedback on the correlation coefficient by changing the color, size, shape, or other characteristics of calibration marker A. By way of example only, calibration marker A may include a third calibration marker (not shown). Processing device 122 may determine the color of the third calibration marker based on the correlation coefficient, with the color of the third calibration marker reflecting the value of the correlation coefficient. By way of example only, when the correlation coefficient is greater than -1 and less than 0, processing device 122 may determine the color of the third calibration marker to be black. When the correlation coefficient is 0, processing device 122 may determine the color of the third calibration marker to be white. When the correlation coefficient is greater than 0 and less than 1, processing device 122 may determine the color of the third calibration marker to be red. As the correlation coefficient increases, processing device 122 may gradually increase the color contrast of the third calibration marker to help the user understand changes in the correlation coefficient.

[0073] In some embodiments, the processing device 122 can determine the initial position of the electrode pad based on the initial lead image. When the standard position is known, the processing device 122 can determine the distance between the standard position and the initial position to help the user make corrections.

[0074] In some embodiments, the processing device 122 can obtain a calibration lead image corresponding to the initial lead image; determine the placement position of the electrode sheet based on the calibration lead image; and determine the movement direction and movement distance of the electrode sheet based on the placement position of the electrode sheet and the standard position.

[0075] Among them, the calibration lead image may refer to the lead image generated when the electrode sheet is placed in the initial position in the database (for example, the storage device 150). The electrode sheet placement position corresponding to the calibration lead image may be the same or almost the same as the initial position. In some embodiments, the user can store the lead image generated each time the electrode sheet is placed and the electrode sheet placement position and other data in the database. In some embodiments, the processing device 122 may store the lead image generated each time the user places the electrode sheet and the electrode sheet placement position and other data in the database. In some embodiments, multiple tests may be performed on the user's body in advance to obtain more calibration lead images. When the user places the electrode sheet again, the processing device 122 may search for the corresponding calibration lead image from the database.

[0076] In some embodiments, since the position of the calibration lead image and the standard position are both known, the processing device 122 can determine the direction and distance of movement from the electrode placement position in the calibration lead image to the standard position. The processing device 122 can display the result on the display device of the health monitoring device 110 or on the user's personal device 140.

[0077] The beneficial effects that may be brought about by the electrode placement position correction method of the embodiments of this specification include but are not limited to: (1) determining the correlation coefficient by obtaining the initial lead image when the electrode is placed in the initial position and the standard lead image when the electrode is placed in the standard position, thereby helping the user to correct the initial position; (2) issuing a voice prompt to the user when the correlation coefficient is greater than the set threshold, which can effectively help the user understand the change of the correlation coefficient; (3) because before correcting the electrode, the user can select the placement position of the electrode to be corrected, it can meet the actual needs of the user in a more targeted manner.

[0078] Figure 13 This is an exemplary module diagram of the electrode placement correction system according to some embodiments of this specification. Figure 13 As shown, the electrode placement position correction system 1300 may include a first acquisition module 1310, a second acquisition module 1320, a correlation coefficient determination module 1330, and a correction feedback generation module 1340. In some embodiments, the electrode placement position correction system 1300 may be composed of Figure 1 The electrode placement position correction system 100 (such as the processing device 122) shown in FIG.

[0079] In some embodiments, the first acquisition module 1310 may be configured to acquire an initial lead image of an initial position where the user places an electrode pad.

[0080] In some embodiments, the second acquisition module 1320 can be used to acquire a standard lead image when the electrode pad is placed in a standard position. In some embodiments, the second acquisition module 1320 can be used to acquire at least one of a historical placement image of the user placing the electrode pad in the standard position, a pre-stored data image of the user placing the electrode pad in the standard position, and a large data image of the large data placed in the standard position.

[0081] In some embodiments, the correlation coefficient determination module 1330 can be configured to determine a correlation coefficient between the initial lead image and the standard lead image based on the initial lead image and the standard lead image. In some embodiments, the correlation coefficient determination module 1330 can be configured to determine a reference distance between the first reference position and the second reference position on the display interface based on the correlation coefficient after selecting the first calibration marker at a first reference position on the display interface and selecting the second calibration marker at a second reference position on the display interface. In some embodiments, the correlation coefficient determination module 1330 can be configured to determine a first correlation coefficient based on a historical placement image of the user placing the electrode pad at the standard position and the initial lead image; determine a second correlation coefficient based on a pre-stored image of the user placing the electrode pad at the standard position and the initial lead image; determine a third correlation coefficient based on a large data image of the large data placed at the standard position and the initial lead image; and determine the correlation coefficient based on an average of the first, second, and third correlation coefficients.

[0082] In some embodiments, the correction feedback generation module 1340 can be used to generate correction feedback based on the correlation coefficient, and the correction feedback is used to prompt the user whether the electrode sheet is placed in the standard position. In some embodiments, the correction feedback generation module 1340 can be used to display a correction mark. In some embodiments, the correction feedback generation module 1340 can be used to display a correction mark based on a display device for a health monitoring device; or, the correction mark is sent to a user's personal device and the correction mark is displayed through the user's personal device. In some embodiments, the correction feedback generation module 1340 can be used to determine the relative positions of the first correction mark and the second correction mark in the display interface based on the correlation coefficient; and display the first correction mark and the second correction mark in the display interface. In some embodiments, the correction feedback generation module 1340 can be used to issue a voice prompt to the user when the correlation coefficient is greater than a set threshold.

[0083] It should be noted that the above description of the electrode placement correction system 1300 and its modules is for convenience only and does not limit this specification to the scope of the embodiments. It is understandable that those skilled in the art, after understanding the principles of the system, may arbitrarily combine the modules or form a subsystem connected to other modules without deviating from the principles. For example, Figure 13The first acquisition module 1310 and the second acquisition module 1320 shown can be different modules in a single device (e.g., processing device 122), or a single module can implement the functions of two or more of the aforementioned modules. For another example, each module can have its own storage module. For another example, each module can share a single storage module. Such variations are within the scope of this specification.

[0084] This specification also provides an electrode placement position correction device, including at least one processor, which can be used to execute the electrode placement position correction method described in one or more embodiments of this specification (for example, Figure 2 Electrode placement position correction method 200).

[0085] This specification also provides a computer-readable storage medium, which can be used to store computer instructions. When a computer reads the computer instructions in the storage medium, the computer can execute the electrode placement position correction method described in one or more embodiments of this specification (for example, Figure 2 Electrode placement position correction method 200).

[0086] Figure 14 This is a flow chart of a user correcting the placement of the electrode pad according to some embodiments of this specification. Figure 1 and Figure 14 As shown, the health monitoring device 110 may include an electrocardiogram device, such as an electrocardiograph. In some embodiments, the user corrects the placement of the electrode sheet as follows: select the placement position of the electrode sheet, and the placement position of the electrode sheet selected by the user is the standard position of the electrode sheet. In some embodiments, the user can select the placement position of the electrode sheet through a device with display and interaction functions. For example, the user can connect the personal device 140 to the health monitoring device 110 for communication, and select the placement position of the electrode sheet on the display interface of the personal device 140. For another example, the user can directly select the placement position of the electrode sheet on the display interface of the display device of the health monitoring device 110. For another example, the user can connect other devices with display and interaction functions to the health monitoring device 110 for communication, and select the placement position through the device. After selecting the placement position, the user needs to place the electrode sheet on the user's body part corresponding to the placement position. Observe on the display interface of the personal device 140 or the display interface on the display device of the health monitoring device 110 whether the correction mark reaches the calibration position (for example, Figure 6 The middle trapezoidal wireframe corresponds to the endpoint of number 1). If the calibration mark reaches the calibration position, it means that the electrode sheet is correctly placed. Otherwise, it means that the electrode sheet is not correctly placed and needs to be re-placed.

[0087] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent replacements and improvements made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A method for correcting the placement of an electrode sheet, characterized in that: The method for correcting the placement of an electrode sheet is used for a health monitoring device, and the method for correcting the placement of an electrode sheet includes: Acquiring an initial lead image of an initial position where the user places the electrode sheet; Acquiring a standard lead image in which the electrode sheet is placed in a standard position; determining a correlation coefficient between the initial lead image and the standard lead image based on the initial lead image and the standard lead image; generating correction feedback based on the correlation coefficient, wherein the correction feedback is used to prompt the user whether the electrode sheet is placed in the standard position; The correction feedback includes a correction mark; the correction mark refers to a mark or pattern reflecting the correlation coefficient; the correction mark includes a first correction mark corresponding to the initial lead image and a second correction mark corresponding to the standard lead image; generating the correction feedback based on the correlation coefficient includes: displaying the correction mark; The displaying of the calibration mark includes: Determining relative positions of the first calibration mark and the second calibration mark in a display interface based on the correlation coefficient; The first calibration mark and the second calibration mark are displayed in the display interface.

2. The method for correcting the placement of an electrode sheet according to claim 1, wherein: The displaying of the calibration mark comprises: displaying the calibration mark based on the display device for the health monitoring device; or, The calibration mark is sent to the user's personal device, and the calibration mark is displayed on the user's personal device.

3. The method for correcting the placement of an electrode sheet according to claim 1, wherein: The determining, based on the correlation coefficient, the relative positions of the first calibration mark and the second calibration mark in the display interface includes: Selecting the first calibration mark at a first reference position on the display interface; Selecting the second calibration mark at a second reference position on the display interface; Based on the correlation coefficient, a reference distance between the first reference position and the second reference position in the display interface is determined.

4. The method for correcting the placement of an electrode sheet according to claim 1, wherein: The standard lead image of the electrode placed in the standard position includes: a historical placement image of the user placing the electrode in the standard position, a pre-stored image of the user placing the electrode in the standard position, and at least one of a big data image of the electrode placed in the standard position in big data.

5. The method for correcting the placement of an electrode sheet according to claim 4, characterized in that: Determining the correlation coefficient between the initial lead image and the standard lead image based on the initial lead image and the standard lead image includes: determining a first correlation coefficient based on the historical placement image of the user placing the electrode pad at the standard position and the initial lead image; determining a second correlation coefficient based on the pre-stored image placed at the standard position and the initial lead image pre-stored for the user; determining a third correlation coefficient based on the big data image placed at the standard position in the big data and the initial lead image; The correlation coefficient is determined based on an average of the first correlation coefficient, the second correlation coefficient, and the third correlation coefficient.

6. A system for correcting the placement of an electrode sheet, characterized in that: The system for correcting the placement of the electrode sheet is used for health monitoring equipment, and the system for correcting the placement of the electrode sheet includes: A first acquisition module is used to acquire an initial lead image of an initial position where the user places the electrode sheet; A second acquisition module is used to acquire a standard lead image when the electrode sheet is placed in a standard position; a correlation coefficient determining module, configured to determine a correlation coefficient between the initial lead image and the standard lead image based on the initial lead image and the standard lead image; A correction feedback generation module is configured to generate correction feedback based on the correlation coefficient, wherein the correction feedback is used to prompt the user whether the electrode sheet is placed in the standard position; the correction feedback includes a correction mark; the correction mark refers to a mark or pattern reflecting the correlation coefficient; the correction mark includes a first correction mark corresponding to the initial lead image and a second correction mark corresponding to the standard lead image; generating correction feedback based on the correlation coefficient includes: displaying the correction mark; The displaying of the calibration mark includes: Determining relative positions of the first calibration mark and the second calibration mark in a display interface based on the correlation coefficient; The first calibration mark and the second calibration mark are displayed in the display interface.

7. A device for correcting the placement of an electrode sheet, characterized in that: The device for correcting the placement of the electrode sheet is used in a health monitoring device, and the device for correcting the placement of the electrode sheet includes at least one processor and at least one memory; The at least one memory is for storing computer instructions; The at least one processor is configured to execute at least part of the computer instructions to implement the method for correcting the placement position of an electrode sheet as claimed in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the method for correcting the placement position of an electrode sheet according to any one of claims 1 to 5 is implemented.

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