Electronic device for measuring bioelectrical impedance and control method thereof

Abstract

An electronic device is disclosed. The electronic device includes: a first electrode body in contact with a body of a user and including first and second current electrodes symmetrically arranged in a first direction and first and second voltage electrodes symmetrically arranged in the first direction; a second electrode body in contact with the body of the user and including a third current electrode and a fourth current electrode symmetrically arranged in a second direction and a third voltage electrode and a fourth voltage electrode symmetrically arranged in the second direction; and at least one processor obtaining a first bio-impedance through the first electrode body, obtaining a second bio-impedance through the second electrode body, identifying one of the first bio-impedance and the second bio-impedance based on a phase of each of the first bio-impedance and the second bio-impedance, the total amount of body water of the user is obtained by using the identified bioimpedance, and the obtained total amount of body water is provided.

Description

Technical Field

[0001] The present disclosure relates to an electronic device and a control method thereof, and, for example, to an electronic device for measuring bioelectrical impedance using multiple electrodes and a control method thereof. Background Art

[0002] Bioelectrical impedance measurement technology is widely used due to its non-invasiveness, cost-saving nature, and excellent stability in measuring total body water and body composition.

[0003] For example, in the related art, a device with a fixed position has been used to measure bioelectrical impedance, but recently, bioelectrical impedance measurement technology has been introduced into portable devices, wearable devices, and the like.

[0004] In the related art, position fixing devices require the user to maintain a specific posture when measuring bioelectrical impedance, and require various restrictions (such as prohibiting excessive exercise or maintaining an empty stomach before measurement).

[0005] The advantage of introducing bioelectrical impedance measurement technology using portable or wearable devices is that it can monitor the user's total body water changes or body composition changes in real time, but the disadvantage is that the measurement of total body water changes is inaccurate.

[0006] For example, if the user is doing strenuous exercise or measuring bioelectrical impedance after consuming a large amount of water, there is a disadvantage that even if the user's total body water cannot change quickly in a short period of time, the total body water measured by the device fluctuates greatly.

[0007] Therefore, there is a need for a method that can measure and provide total body water with high accuracy regardless of the user's activity status (e.g., exercise status). Summary of the Invention

[0008] Technical Solution According to an example embodiment, an electronic device includes: a first electrode body, configured to be in contact with a body and including: a first current electrode and a second current electrode symmetrically arranged in a first direction and a first voltage electrode and a second voltage electrode symmetrically arranged in the first direction; a second electrode body, configured to be in contact with the body and including: a third current electrode and a fourth current electrode symmetrically arranged in a second direction and a third voltage electrode and a fourth voltage electrode symmetrically arranged in the second direction; and one or more processors configured to: obtain a first bioelectrical impedance through the first electrode body, obtain a second bioelectrical impedance through the second electrode body, identify one of the first bioelectrical impedance and the second bioelectrical impedance based on a phase of each of the first bioelectrical impedance and the second bioelectrical impedance, obtain a total body water amount using the identified bioelectrical impedance, and provide the obtained total body water amount.

[0009] According to an example embodiment, a method for controlling an electronic device including a first electrode body and a second electrode body configured to be in contact with a body includes: obtaining a first bioelectrical impedance through the first electrode body, wherein the first electrode body includes a first current electrode and a second current electrode symmetrically arranged in a first direction and a first voltage electrode and a second voltage electrode symmetrically arranged in the first direction; obtaining a second bioelectrical impedance through the second electrode body, wherein the second electrode body includes a third current electrode and a fourth current electrode symmetrically arranged in a second direction and a third voltage electrode and a fourth voltage electrode symmetrically arranged in the second direction; identifying one of the first bioelectrical impedance and the second bioelectrical impedance based on a phase of each of the first bioelectrical impedance and the second bioelectrical impedance; obtaining a total body water amount using the identified bioelectrical impedance; and providing the obtained total body water amount.

[0010] According to an example embodiment, a non-transitory computer-readable recording medium including a program is provided, which, when executed, causes an electronic device to execute a method of controlling the electronic device, wherein the electronic device includes a first electrode body and a second electrode body in contact with a body, the method including: obtaining a first bioelectrical impedance through the first electrode body, wherein the first electrode body includes a first current electrode and a second current electrode symmetrically arranged in a first direction and a first voltage electrode and a second voltage electrode symmetrically arranged in the first direction; obtaining a second bioelectrical impedance through the second electrode body, wherein the second electrode body includes a third current electrode and a fourth current electrode symmetrically arranged in a second direction and a third voltage electrode and a fourth voltage electrode symmetrically arranged in the second direction; identifying one of the first bioelectrical impedance and the second bioelectrical impedance based on a phase of each of the first bioelectrical impedance and the second bioelectrical impedance; obtaining a total body water amount using the identified bioelectrical impedance; and providing the obtained total body water amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: Figure 1 is a graph showing changes in bioelectrical impedance during rest and exercise of a user; Figure 2 is a block diagram illustrating an example configuration of an electronic device according to various embodiments; Figure 3 is a diagram illustrating a side view of an electronic device in contact with a user's body according to various embodiments; Figure 4 is a diagram illustrating a plan view of an electronic device according to various embodiments; Figure 5is a diagram illustrating arrangement directions of electrodes based on muscle cells included in a local area on a user's body according to various embodiments; Figure 6 is a graph illustrating a phase of each of a first bioelectrical impedance and a second bioelectrical impedance according to various embodiments; Figure 7 is a graph illustrating an example method for regulating total body water according to various embodiments; Figure 8 is a diagram illustrating an example electronic device including a plurality of electrode bodies according to various embodiments; Figure 9 is a graph illustrating an example method for obtaining and adjusting total body water using multiple bioelectrical impedances according to various embodiments; Figure 10 is a diagram illustrating a side view of a contact state between a user's body and an electronic device according to various embodiments; Figure 11 is a diagram illustrating an implementation example of an electronic device according to various embodiments; and Figure 12 is a flowchart illustrating an example method of operating an electronic device according to various embodiments. DETAILED DESCRIPTION

[0012] The terms used in the present disclosure are briefly described, and then the present disclosure will be described in more detail with reference to the accompanying drawings.

[0013] The terms used in this disclosure and claims are general terms determined based on the functions of the various embodiments of the present disclosure. However, these terms may vary depending on the intentions of those skilled in the relevant art, legal or technical interpretations, the emergence of new technologies, and the like. Furthermore, some terms may be arbitrarily identified. Unless otherwise specifically defined, the term may be interpreted based on the overall context and the technical common sense of those skilled in the relevant art.

[0014] Because the present disclosure is susceptible to various modifications and has multiple embodiments, various non-limiting exemplary embodiments of the present disclosure will be illustrated in the accompanying drawings and described in more detail in the detailed description. However, it should be understood that the present disclosure is not limited to the specific non-limiting exemplary embodiments, but includes all modifications, equivalents, and alternatives without departing from the scope and spirit of the present disclosure. When it is determined that a detailed description of known technology related to the present disclosure may obscure the main purpose of the present disclosure, the detailed description may be omitted.

[0015] As used herein, the terms "first," "second," and the like may identify corresponding components regardless of the significance of order and are used to distinguish a component from another component without limiting the components.

[0016] Unless the context clearly indicates otherwise, the singular form is intended to include the plural form. It will also be understood that the terms "comprising" or "formed by" used in this disclosure specify the presence of the features, numbers, steps, operations, components, parts, or combinations thereof mentioned in the disclosure, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0017] Terms such as "module," "unit," "component," etc. are used to refer to an element that performs at least one function or operation, and such an element may be implemented as hardware or software, or a combination of hardware and software. In addition, except when each of a plurality of "modules," "units," "components," etc. must be implemented in separate hardware, the components may be integrated into at least one module or chip and may be implemented in one or more processors (not shown).

[0018] Hereinafter, various non-limiting example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. However, the present disclosure may be implemented in a variety of different forms and is not limited to the example embodiments described herein. In addition, in the drawings, parts not relevant to the description may be omitted, and similar parts will be represented by similar reference numerals throughout the disclosure.

[0019] Figure 1 is a graph showing changes in bioelectrical impedance while a user is resting and exercising.

[0020] The bioelectrical impedance technology (bioelectrical impedance analysis, BIA) may refer to a technology of measuring the composition of a human body (hereinafter, body composition) using impedance measurable when a microcurrent electric signal is introduced into the human body, for example.

[0021] Impedance can be determined as the vector sum of resistance and reactance. When a microcurrent electrical signal is applied to the human body, the body's composition of total body water, fat tissue, muscle cells, bones, etc., creates resistance.

[0022] For example, muscle cells include a large amount of water, making the passage through which electrical signals flow wide (eg, less resistance), and fat tissue includes less water, making the passage through which electrical signals flow narrow (eg, greater resistance).

[0023] Reactance can refer to the resistance (e.g., reactance) generated in a cell membrane when an electrical signal, flowing along water in the human body in addition to cells, encounters and passes through the cell membrane, allowing the electrical signal to flow to the water in the cell. Therefore, unlike resistance, reactance can indicate the structural stability of a cell.

[0024] Impedance represents the resistance of the human body generated when a microcurrent electrical signal flows in the human body, and is the vector sum of resistance and reactance.

[0025] Volume (V) may correspond to the product of length (L) and area (A) (V=L×A), and resistance (R) is inversely proportional to the cross-sectional area (A) and directly proportional to the length (L) (R=L / A).

[0026] Impedance (R) may refer to, for example, bioelectrical impedance, length (L) may correspond to the user's height, and volume (V) may correspond to the total body water of the human body, and thus the total body water is determined according to Equation 1 below.

[0027] [Equation 1] Total body water = C × L 2 / R Here, C is the resistance per unit volume, and since a predetermined (e.g., specified) amount of electrolyte is dissolved per unit volume, this value is a constant value, and the user's height (L) can be measured, so the total body water content can be obtained based on the bioelectrical impedance (R).

[0028] According to various examples, the body's composition includes total body water, protein, body fat, and minerals (bone). Total body water and protein, as the main components of muscle cells, are proportional to each other (e.g., approximately 72:37). The weight of bone, as a main component, is closely related to muscle mass. Therefore, the total body water content can be used to determine the amount of protein, minerals, and body fat (weight minus lean body weight) (lean body weight = total body water + protein + minerals), i.e., all components of the body composition. Weight equals the sum of the body components.

[0029] The electronic device according to various embodiments of the present disclosure may be implemented with a device (eg, a wearable device) that can come into contact with a user's human body to measure bioelectrical impedance.

[0030] For example, the electronic device may include electrode bodies (e.g., electrode bodies used for electrocardiogram (ECG)) that contact various local areas on the body (such as the user's wrist, back of the hand, ankle, instep, thigh, etc.), and may control the electrode bodies so that current (i) flows to the local areas.

[0031] When current (i) passes through the local area, the electronic device may measure a voltage V between electrodes included in the electrode body, and may obtain a bioelectrical impedance R according to Ohm's law (R=V / i).

[0032] According to various examples, the electronic device may obtain the total body water content based on the bioelectrical impedance, and may obtain the protein, mineral, and body fat content as described above. According to one or more examples, the electronic device may provide a composition ratio of the user's body composition (total body water, protein, body fat, or mineral composition ratio).

[0033] In order to reliably identify total body water with high accuracy, bioelectrical impedance needs to be measured in a fasting, resting state (e.g., before exercise).

[0034] like Figure 1 As shown in the graph, the bioelectrical impedance measured at preset time intervals remains constant in a resting state, but in an active state (for example, during or immediately after exercise), the bioelectrical impedance gradually decreases due to the activity of muscle cells in the body. Therefore, there may be a problem in which the electronic device inaccurately identifies the total body water amount (or the ratio of total body water, protein, body fat, and mineral components) of the user's body composition.

[0035] The electronic device according to various embodiments of the present disclosure can properly adjust and provide the total body water even when the bioelectrical impedance is incorrectly measured according to the activity of muscle cells. Figure 2 A description thereof is provided in more detail.

[0036] Figure 2 is a block diagram illustrating an example configuration of an electronic device according to various embodiments.

[0037] Reference Figure 2 , the electronic device 100 includes a first electrode body 110 , a second electrode body 120 , and one or more processors (eg, including a processing circuit) 10 .

[0038] The electronic device 100 according to various embodiments may include, for example, but not limited to, wearable devices and portable devices. A wearable device may refer to, for example, a device made of a flexible material (e.g., silicone rubber, fiber, etc.) and worn by a user or in contact with a part of the user's body. For example, various types of devices may be included in wearable devices (such as, for example, but not limited to, watches, clothing, shoes, gloves, glasses, hats, accessories (e.g., rings), etc. that can be worn on the body of a person or animal). However, this is merely an example, and embodiments are not limited thereto.

[0039] According to various embodiments, the electronic device 100 may include, for example, but not limited to, at least one of a television (TV), a user terminal device, a tablet personal computer (PC), a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a workstation, a server, a personal digital assistant (PDA), a portable multimedia player (PMP), an MP3 player, a medical device, a camera, a virtual reality (VR) device, or a wearable device. Here, the wearable device may include at least one of the following: an accessory type (e.g., a watch, a ring, a bracelet, an anklet, a necklace, a pair of glasses, contact lenses, or a head-mounted device (HMD)); a fabric or clothing embedded type (e.g., electronic cloth); a skin-attached type (e.g., a skin pad or tattoo); or a bio-implantable circuit. In various embodiments, the electronic device 100 may include, for example, a TV, a digital video disc (DVD) player, an audio system, a refrigerator, an air conditioner, a vacuum cleaner, an oven, a microwave oven, a washing machine, an air purifier, a source device (e.g., a set-top box, a cloud server, an over-the-top (OTT) media service server, etc.), a home automation control panel, a security control panel, a media box (e.g., an APPLE TV TM or Google TV TM ), LED S-Box, game consoles (e.g., XBOX TM 、PLAYSTATION TM 、NINTENDOSWITCH TM ), at least one of an electronic dictionary, an electronic key, a camera, or an electronic photo frame.

[0040] In various embodiments, the electronic device 100 may include at least one of various medical devices (e.g., various portable medical measuring devices (such as a blood glucose meter, a heart rate monitor, a blood pressure monitor, or a temperature measuring device), a total body water measuring device, a magnetic resonance angiography (MRA), a magnetic resonance imaging (MRI), a computed tomography (CT), a capture device, or an ultrasound device), a navigation system, a global navigation satellite system (GNSS), an event data recorder (EDR), a flight data recorder (FDR), an automotive infotainment device, a marine electronic device (e.g., a marine navigation device, a gyrocompass, etc.), an avionics device, a security device, an in-vehicle head unit, an industrial or domestic robot, a drone, an automatic teller machine (ATM) at a financial institution, a point of sale (POS) at a store, or an Internet of Things (IoT) device (e.g., a light bulb, a sensor, a sprinkler, a fire alarm, a thermostat, a street lamp, a toaster, fitness equipment, a hot water tank, a heater, a boiler, etc.). Hereinafter, for convenience and not limitation, it is assumed that the electronic device 100 is a wearable device (e.g., a smartwatch).

[0041] The electronic device 100 according to various embodiments of the present disclosure may include a first electrode body 110 and a second electrode body 120 that come into contact with a user's body.

[0042] The first electrode body 110 according to various embodiments may include first and second current electrodes 111 - 1 and 111 - 2 symmetrically disposed in the first direction and first and second voltage electrodes 112 - 1 and 112 - 2 symmetrically disposed in the first direction.

[0043] The second electrode body 120 according to various embodiments may include third and fourth current electrodes 121 - 1 and 121 - 2 arranged symmetrically to each other in the second direction, and third and fourth voltage electrodes 122 - 1 and 122 - 2 arranged symmetrically in the second direction.

[0044] One or more processors 10 may include various processing circuits (as used herein (including the claims), the term "processor" may include various processing circuits including at least one processor, wherein the one or more processors may be configured to perform the various functions described herein) and control the overall operation of the electronic device 100. Depending on the embodiment, the one or more processors 10 may be implemented, for example, but not limited to, using a digital signal processor (DSP) for processing digital image signals, a microprocessor, and a timing controller (TCON), but is not limited thereto. The processor 10 may include, for example, but not limited to, one or more of a central processing unit (CPU), a microcontroller unit (MCU), a microprocessing unit (MPU), a controller, an application processor (AP), a communication processor (CP), an advanced reduced instruction set computing (RISC) machine (ARM) processor, an artificial intelligence (AI) processor, etc., or may be defined as such. The one or more processors 10 may be implemented as a system-on-chip (SoC) type, a large-scale integrated circuit (LSI) type, or a field-programmable gate array (FPGA) type with built-in processing algorithms. The one or more processors 10 may perform various functions by executing computer-executable instructions stored in memory.

[0045] The one or more processors 10 may be implemented as one or more processors. The one or more processors may include one or more of a central processing unit (CPU), a graphics processing unit (GPU), an accelerated processing unit (APU), an integrated many-core (MIC), a digital signal processor (DSP), a neural processing unit (NPU), a hardware accelerator, or a machine learning accelerator. The one or more processors 10 may control one or any combination of other components of the electronic device and may perform operations related to communication or data processing. The one or more processors 10 may run one or more programs or instructions stored in a memory. For example, the one or more processors 10 may execute the methods according to various embodiments of the present disclosure by running one or more instructions stored in a memory.

[0046] When the methods according to various embodiments of the present disclosure include multiple operations, the multiple operations may be performed by one processor or by multiple processors. For example, when performing a first operation, a second operation, and a third operation according to the methods according to various embodiments, all of the first operation, the second operation, and the third operation may be performed by the first processor, the first operation and the second operation may be performed by the first processor (e.g., a general-purpose processor), and the third operation may be performed by a second processor (e.g., a dedicated processor for artificial intelligence).

[0047] One or more processors 10 may be implemented as a single-core processor including one core, or may be implemented as one or more multi-core processors including multiple cores (e.g., homogeneous multi-core or heterogeneous multi-core). When one or more processors are implemented as multi-core processors, each of the multiple cores included in the multi-core processor may include processor internal memory (such as cache memory and on-chip memory), and a common cache shared by the multiple cores may be included in the multi-core processor. In addition, each of the multiple cores included in the multi-core processor (or a portion of the multiple cores) may independently read and execute program commands for implementing the methods according to various embodiments of the present disclosure, and may read and execute program commands for implementing the methods according to various embodiments of the present disclosure in relation to all (or a portion of) the multiple cores.

[0048] When the method according to various embodiments of the present disclosure includes multiple operations, the multiple operations may be performed by one of the multiple cores included in the multi-core processor, or may be performed by multiple cores. For example, when the first operation, the second operation, and the third operation are performed by the method according to various embodiments, all of the first operation, the second operation, and the third operation may be performed by the first core included in the multi-core processor, and the first operation and the second operation may be performed by the first core included in the multi-core processor, while the third operation may be performed by the second core included in the multi-core processor.

[0049] In various embodiments of the present disclosure, one or more processors may include, for example, a system on a chip (SoC) in which one or more processors and other electronic components are integrated, a single-core processor, a multi-core processor, or a core included in a single-core processor or a multi-core processor, wherein the core may be implemented as a CPU, GPU, APU, MIC, DSP, NPU, hardware accelerator, or machine learning accelerator, but the embodiments of the present disclosure are not limited thereto.

[0050] According to various embodiments, one or more processors 10 may include a first bioelectrical impedance measurement unit (eg, including various processing circuits and / or executable program instructions) 11 and a second bioelectrical impedance measurement unit (eg, including various processing circuits and / or executable program instructions) 12 .

[0051] The bioelectrical impedance measurement unit 11 may control the first electrode body 110 so that a current i flows between the first current electrode 111 - 1 and the second current electrode 111 - 2 .

[0052] According to various embodiments, current flows from the first current electrode 111-1 to the second current electrode 111-2, and the first bioelectrical impedance measurement unit 11 can measure the voltage (v) in the loop formed by the first voltage electrode 112-1 and the second voltage electrode 112-2. According to various embodiments, the first bioelectrical impedance measurement unit 11 can measure the resistance of the human body in a first direction (i.e., the first bioelectrical impedance).

[0053] The following will refer to Figure 3 Provide a description in more detail.

[0054] Figure 3 is a diagram illustrating a side view of an electronic device in contact with a user's body according to various embodiments.

[0055] Reference Figure 3 According to various embodiments, the electronic device 100 includes one surface (hereinafter, the rear surface) that contacts the user's body, and another surface (hereinafter, the front surface) may include a display (not shown) for providing various information (e.g., blood sugar information, body composition information, etc.), and the first conductor 110 and the second conductor 120 may be disposed on the rear surface.

[0056] According to various embodiments, the first conductor 110 may include a first current electrode 111 - 1 and a second current electrode 111 - 2 arranged symmetrically to the first current electrode 111 - 1 with respect to the center of the rear surface.

[0057] According to various embodiments, the first bioelectrical impedance measurement unit 11 may control the first electrode body 110 so that a microcurrent (i) flows between the first current electrode 111 - 1 and the second current electrode 111 - 2 .

[0058] According to various embodiments, the first bioelectrical impedance measurement unit 11 may measure a voltage (v) in a loop formed from the first voltage electrode 112 - 1 to the second voltage electrode 112 - 2 , and may measure a human body resistance (Zb) in a first direction (i.e., a first bioelectrical impedance) based on a microcurrent (i) and a voltage (v).

[0059] The first voltage electrode 112-1 is disposed adjacent to the first current electrode 111-1 at a certain interval, and the second voltage electrode 112-2 may be arranged symmetrically with respect to the center of the rear surface. In addition, according to various embodiments, the second voltage electrode 112-2 may be disposed adjacent to the second current electrode 111-2 at a certain interval.

[0060] According to various embodiments, the first current electrode 111-1 and the second current electrode 111-2 are arranged symmetrically in the first direction, and the first voltage electrode 112-1 and the second voltage electrode 112-2 are arranged symmetrically in the first direction, so that the first bioelectrical impedance measurement unit 11 can obtain the bioelectrical impedance corresponding to the first direction of the muscle cells (i.e., muscle tissue) included in the local area of ​​the user's body that contacts the electronic device 100 (hereinafter, referred to as the first bioelectrical impedance).

[0061] return Figure 2 , the second bioelectrical impedance measurement unit 12 may control the second electrode body 120 so that the current i flows between the third current electrode 121 - 1 and the fourth current electrode 121 - 2 .

[0062] According to various embodiments, current i may flow from the third current electrode 121-1 to the fourth current electrode 121-2, and the second bioelectrical impedance measurement unit 12 may measure a voltage v in a loop formed from the third voltage electrode 122-1 to the fourth voltage electrode 122-2. The second bioelectrical impedance measurement unit 11 according to various embodiments may measure the resistance of the human body in a second direction (i.e., a second bioelectrical impedance).

[0063] The following will refer to Figure 4 Provide a description in more detail.

[0064] Figure 4 is a diagram illustrating a plan view of an electronic device according to various embodiments.

[0065] Reference Figure 4 According to various embodiments, the second conductive body 120 may include a third current electrode 121 - 1 and a fourth current electrode 121 - 2 arranged symmetrically to the third current electrode 121 - 1 with respect to the center of the rear surface.

[0066] According to various embodiments, the second bioelectrical impedance measurement unit 12 may control the second electrode body 120 so that a microcurrent (i) flows between the third current electrode 121 - 1 and the fourth current electrode 121 - 2 .

[0067] According to various embodiments, the second bioelectrical impedance measurement unit 12 may measure a voltage (v) in a loop formed from the third voltage electrode 122-1 to the fourth voltage electrode 122-2, and may measure a human body resistance in a second direction B (i.e., a second bioelectrical impedance) based on the microcurrent (i) and the voltage (v).

[0068] The third voltage electrode 122-1 may be disposed adjacent to the third current electrode 121-1 at a certain interval, and the fourth voltage electrode 122-2 may be arranged symmetrically with respect to the center of the rear surface with respect to the third voltage electrode 132-1. In addition, according to various embodiments, the fourth voltage electrode 122-2 may be disposed adjacent to the fourth current electrode 121-2 at a certain interval.

[0069] According to various embodiments, Figure 4 It is illustrated that each of the third voltage electrode 122 - 1 and the fourth voltage electrode 122 - 2 is disposed closer to the center of the rear surface than the third current electrode 121 - 1 and the fourth current electrode 121 - 2 , but this is merely an example and is not limited thereto.

[0070] For example, the third current electrode 121-1 and the fourth current electrode 121-2 may be arranged closer to the center of the rear surface than the third voltage electrode 122-1 and the fourth voltage electrode 122-2, respectively. Alternatively, each of the first current electrode 111-1 and the second current electrode 111-2 may be arranged closer to the center of the rear surface than the first voltage electrode 112-1 and the second voltage electrode 112-2.

[0071] Reference Figure 4 According to various embodiments, the third current electrode 121-1 and the fourth current electrode 121-2 are arranged symmetrically with respect to each other in the second direction B, and the third voltage electrode 122-1 and the fourth voltage electrode 122-2 are arranged symmetrically in the second direction B. This allows the second bioelectrical impedance measurement unit 12 to obtain the bioelectrical impedance corresponding to the second direction B (hereinafter, the second bioelectrical impedance) of muscle cells (e.g., muscle tissue) included in a local area of ​​the user's body that is in contact with the electronic device 100. According to various embodiments, the first direction (A) and the second direction (B) may be orthogonal.

[0072] The following will refer to Figure 5 Provide a description in more detail.

[0073] Figure 5: are diagrams illustrating arrangement directions of electrodes based on muscle cells included in a local area on a user's body according to various embodiments.

[0074] Reference Figure 5 , according to various embodiments, the first direction A may be parallel to the muscle cells, and the second direction B may be perpendicular to the muscle cells.

[0075] Bioelectrical impedance can be the vector sum of resistance and reactance. Reactance refers to the resistance generated by the cell membrane when a microcurrent flowing along the extracellular water in the body passes through the cell membrane and flows into the intracellular water. This is different from the resistance generated when the microcurrent (i) flows along the intracellular water and extracellular water.

[0076] According to various embodiments, since the first direction (A) is parallel to the muscle cells, the bioelectrical impedance corresponding to the first direction (eg, first bioelectrical impedance) is less affected by resistance (eg, reactance) due to cell membranes of the muscle cells.

[0077] According to various embodiments, the second direction (B) is perpendicular to the muscle cells, and the bioelectrical impedance corresponding to the second direction (eg, the second bioelectrical impedance) may be largely affected by the cell membrane of the muscle cells.

[0078] To accurately and reliably identify total body water content based on bioelectrical impedance, it is necessary to measure bioelectrical impedance in a fasting state or at rest (for example, before exercise). During active activity, due to muscle activity, the bioelectrical impedance corresponding to cells in a specific direction (for example, perpendicular to the muscle cells) may be slightly lower, leading to inaccurate identification of total body water content. For example, using only the bioelectrical impedance corresponding to the second direction B to identify total body water content during active activity (for example, during or immediately after exercise) can significantly misidentify total body water content.

[0079] The electronic device 100 according to various embodiments of the present disclosure may identify a plurality of bioelectrical impedances using multiple electrodes (eg, the first electrode body 110 and the second electrode body 120 ), and identify a total body water amount using at least one of the plurality of bioelectrical impedances.

[0080] The following will refer to Figure 6 Provide a description in more detail.

[0081] Figure 6 is a graph illustrating a phase of each of a first bioelectrical impedance and a second bioelectrical impedance according to various embodiments.

[0082] Reference Figure 6, the one or more processors 10 may control the first electrode body 110 and the second electrode body 120 so that a microcurrent (i) corresponding to each of a plurality of frequencies flows.

[0083] According to various embodiments, the degree of cell penetration is different for each frequency of the microcurrent (i), and a microcurrent of 5 kHz among frequencies of 5 kHz to 200 kHz does not pass through the cell membrane in order to measure extracellular water (ECW), and a high-frequency microcurrent of 100 kHz or higher passes through the cell membrane in order to measure total body water (TBW).

[0084] According to one or more processors 10 of an embodiment of the present disclosure, the bioelectrical impedance corresponding to the first direction A (i.e., the first bioelectrical impedance) and the bioelectrical impedance corresponding to the second direction B (i.e., the second bioelectrical impedance) may be obtained, and based on the phase of each of the first bioelectrical impedance and the second bioelectrical impedance, one of the first bioelectrical impedance and the second bioelectrical impedance may be used to identify the total body water content of the user.

[0085] Reference Figure 6 One of the first and second bioelectrical impedances may be significantly affected by the resistance (e.g., reactance) of the muscle cell membrane. For example, the measured bioelectrical impedance corresponding to the second direction B perpendicular to the muscle cell may be relatively greater than the measured bioelectrical impedance corresponding to the first direction A parallel to the muscle cell.

[0086] According to various embodiments, when the user is in an active state rather than a resting state, due to the activity of muscle cells, the phase of the measured second bioelectrical impedance is relatively larger than the phase of the first bioelectrical impedance, and when one or more processors 10 measures the total body water content based on the second bioelectrical impedance, there is a problem of reduced accuracy of the total body water content.

[0087] According to various embodiments, the one or more processors 10 may identify a bioelectrical impedance with a relatively low phase among multiple bioelectrical impedances and measure the total body water content based on the identified bioelectrical impedance. For example, when the user is active rather than resting, the phase of the measured second bioelectrical impedance is relatively greater than the phase of the first bioelectrical impedance due to muscle cell activity. The one or more processors 10 may measure the total body water content based on the first bioelectrical impedance (which is less affected by the resistance (e.g., reactance) of the muscle cell membrane).

[0088] According to various embodiments, one or more processors 10 may identify muscle activation information based on the second bioelectrical impedance because when the user is active, the phase of the measured second bioelectrical impedance is relatively greater than the phase of the first bioelectrical impedance due to the activity of muscle cells.

[0089] The activity level of the muscle may correspond to the activity level of muscle cells included in a local area of ​​the user's body that is in contact with the electronic device 100 .

[0090] Figure 7 is a graph illustrating an example method for regulating total body water according to various embodiments.

[0091] Reference Figure 7 , the electronic device 100 may obtain a plurality of bioelectrical impedances at preset time intervals, and may monitor fluctuations in the total body water amount based on the plurality of bioelectrical impedances, or may provide the user with information on fluctuations in the total body water amount.

[0092] According to various embodiments, when the user is in an active state, each of the plurality of bioelectrical impedances may fluctuate (or change) according to the activity level of muscle cells.

[0093] Reference Figure 7 , the one or more processors 10 may control the first electrode body 110 to obtain the first bioelectrical impedance at preset time intervals, and identify a phase change corresponding to the first bioelectrical impedance.

[0094] The one or more processors 10 may control the second electrode body 120 to obtain the second bioelectrical impedance at predetermined time intervals, and identify a phase change corresponding to the second bioelectrical impedance.

[0095] Since the total body water content of the human body does not change rapidly in a short period of time, each of the first bioelectrical impedance and the second bioelectrical impedance obtained at preset time intervals should be limited to a fluctuation range, but when the activity level of muscle cells increases due to the user's activity state (for example, strenuous exercise, etc.), the first bioelectrical impedance and the second bioelectrical impedance may change significantly.

[0096] Even when the actual total body water content in the user's body has not changed significantly, the one or more processors 10 may have a problem of measuring and providing an incorrect total body water content based on the first and second bioelectrical impedances that have changed significantly.

[0097] For example, since the microcurrent (i) is measured by passing through the cell membranes of multiple muscle cells, the bioelectrical impedance (e.g., the second bioelectrical impedance) corresponding to the direction perpendicular to the muscle cells (e.g., the second direction) changes sensitively according to the degree of activity of the muscle cells, and when one or more processors 10 identify changes in the total body water content based on the second bioelectrical impedance, even if the total body water content does not change significantly, there is a problem of providing a total body water content that changes greatly within a short time (hereinafter, referred to as the threshold time).

[0098] When the phase change corresponding to the first bioelectrical impedance is lower than the phase change corresponding to the second bioelectrical impedance, one or more processors 10 according to various embodiments of the present disclosure may obtain and provide changes in total body water based on the first bioelectrical impedance obtained at preset time intervals.

[0099] The one or more processors 10 according to various embodiments may adjust the change in the total body water amount based on the phase change corresponding to the second bioelectrical impedance obtained at preset time intervals.

[0100] Reference Figure 6 When the phase change corresponding to the second bioelectrical impedance exceeds a threshold range within a threshold time (i.e., when the fluctuation range of multiple second bioelectrical impedances obtained at a preset time interval exceeds a threshold range), one or more processors 10 may adjust the total body water amount obtained based on the first bioelectrical impedance and provide the adjusted total body water amount.

[0101] When the fluctuation range of multiple second bioelectrical impedances obtained at preset time intervals exceeds a threshold range, one or more processors 10 according to various embodiments do not cause the total body water volume of the human body to fluctuate significantly, but since each of the first bioelectrical impedance and the second bioelectrical impedance changes rapidly due to the activity of muscle cells, the total body water volume provided to the user can be maintained.

[0102] For example, when the fluctuation range of multiple second bioelectrical impedances obtained at preset time intervals exceeds a threshold range, one or more processors 10 may ignore the gradual decrease of multiple first bioelectrical impedances obtained at preset time intervals and maintain the total body water provided to the user.

[0103] For example, the one or more processors 10 may determine the total body water content based on a first bioelectrical impedance having a small fluctuation range based on the activity level of muscle cells in a resting state of the user. The one or more processors 10 may adjust the fluctuation range of the first bioelectrical impedance (for example, by ignoring changes in the first bioelectrical impedance or applying a weighting value between 0 and 1 to the fluctuation range of the first bioelectrical impedance) based on a second bioelectrical impedance having a large fluctuation range based on the activity level of muscle cells in an active state of the user, and determine the total body water content based on the adjusted first bioelectrical impedance.

[0104] Therefore, one or more processors 10 can use each of the multiple electrodes to obtain multiple bioelectrical impedances, so that even if the user's actual total body water volume does not change, the total body water volume will not be erroneously measured due to the activity level of muscle cells, and after adjusting the remaining bioelectrical impedance (for example, the first bioelectrical impedance) based on any one of the multiple bioelectrical impedances, the total body water volume can be obtained based on the adjusted bioelectrical impedance.

[0105] Any one of the bioelectrical impedances may include a bioelectrical impedance having a large fluctuation range according to the activity level of muscle cells, and the remaining other bioelectrical impedances may be a bioelectrical impedance having a small fluctuation range according to the activity level of muscle cells.

[0106] Figure 8 is a diagram illustrating an example electronic device including a plurality of electrode bodies according to various embodiments.

[0107] In the various embodiments described above, for convenience of description, the electronic device 100 includes the first electrode body 110 and the second electrode body 120 , but this is an example, and the electronic device 100 may include a plurality of electrode bodies.

[0108] Figure 8 is a diagram illustrating a plurality of electrode bodies provided in the rear surface of the electronic device 100 .

[0109] In various examples, the first electrode body 110 may include a first current electrode 111-1 and a first voltage electrode 112-1 located on E1, and a second current electrode 111-2 and a second voltage electrode 112-2 located on E5. Here, E1 and E5 may be symmetrical relative to the center of the rear surface. The first electrode body 110 may measure the human body resistance in a first direction (hereinafter referred to as the first bioelectrical impedance).

[0110] The second electrode body 120 may include a third current electrode 121-1 and a third voltage electrode 122-1 located on E2, and a fourth current electrode 121-2 and a fourth voltage electrode 122-2 located on E6. Here, E2 and E6 may be symmetrical with respect to the center of the rear surface. The second electrode body 120 may measure the human body resistance in a second direction (hereinafter referred to as the second bioelectrical impedance).

[0111] The third electrode body 130 may include a fifth current electrode and a fifth voltage electrode located at E3, and a sixth current electrode and a sixth voltage electrode located at E7. Here, E3 and E7 may be symmetrical relative to the center of the rear surface. The third electrode body 130 may measure the human body resistance in a third direction (hereinafter referred to as the third bioelectrical impedance).

[0112] The fourth electrode body 140 may include a seventh current electrode and a seventh voltage electrode located on E4, and an eighth current electrode and an eighth voltage electrode located on E8. Here, E4 and E8 may be symmetrical relative to the center of the rear surface. The fourth electrode body 140 can measure the human body resistance in a fourth direction (hereinafter referred to as the fourth bioelectrical impedance).

[0113] According to various embodiments of the present disclosure, one or more processors 10 can obtain multiple bioelectrical impedances in various directions, identify the bioelectrical impedance with a relatively large phase among the multiple bioelectrical impedances as a bioelectrical impedance with a large fluctuation range according to the activity level of muscle cells, and identify the bioelectrical impedance with a relatively small phase as a bioelectrical impedance with a small fluctuation range according to the activity level of muscle cells.

[0114] The following will refer to Figure 9 Provide a description in more detail.

[0115] Figure 9 is a graph illustrating an example method for obtaining and regulating total body water using multiple bioelectrical impedances according to various embodiments.

[0116] Reference Figure 9 , in a plurality of frequencies, a phase of each of a plurality of bioelectrical impedances (eg, the first to fourth bioelectrical impedances) may be different.

[0117] The one or more processors 10 may convert a bioelectrical impedance having a relatively large phase among the plurality of bioelectrical impedances ( Figure 9 The first bioelectrical impedance E1_E5) is identified as a bioelectrical impedance having a wide fluctuation range depending on the activity level of muscle cells.

[0118] The one or more processors 10 may convert the bioelectrical impedance having a relatively small phase among the plurality of bioelectrical impedances ( Figure 9 The fourth bioelectrical impedance (E4_E8) in the figure is identified as a bioelectrical impedance with a small fluctuation range depending on the activity level of muscle cells.

[0119] The one or more processors 10 may determine the total body water content based on the fourth bioelectrical impedance. When the fluctuation range of the first bioelectrical impedance exceeds a threshold range within a threshold time, the one or more processors 10 according to various embodiments may adjust the phase change of the fourth bioelectrical impedance within the threshold time and determine the total body water content based on the adjusted fourth bioelectrical impedance.

[0120] According to various embodiments of the present disclosure, the one or more processors 10 may obtain human body resistance according to each of various directions (eg, first to fourth directions) using the plurality of electrode bodies 110 to 140 .

[0121] The one or more processors 10 may identify a body resistance that is sensitive to muscle cells and a body resistance that is not sensitive to muscle cells based on the contact state of the electronic device 100. The one or more processors 10 may obtain the total body water content based on the body resistance that is not sensitive to muscle cells, but may adjust the total body water content based on the fluctuation range of the body resistance that is sensitive to muscle cells, and then provide the total body water content to the user.

[0122] exist Figure 9 , the first to fourth electrode bodies 110 to 140 are examples for convenience of description, and the number of electrode bodies that can be provided in the electronic device 100 is not limited.

[0123] Figure 10 is a diagram illustrating a side view of a contact state between a user's body and an electronic device according to various embodiments.

[0124] Reference Figure 10 , the one or more processors 10 may obtain human body resistance according to various directions (eg, first to fourth directions) using the plurality of electrode bodies 110 to 140 .

[0125] The one or more processors 10 may obtain a bioelectrical impedance from each of the plurality of electrode bodies 110 to 140 and may obtain a total body water amount using at least one of the plurality of bioelectrical impedances.

[0126] Even if the bioelectrical impedance is not measured from any one of the multiple electrode bodies 110 to 140 due to a failure in the contact state between the electronic device 100 and the user's body, one or more processors 10 according to various embodiments can obtain the total body water amount by measuring the bioelectrical impedance from the remaining electrode bodies.

[0127] According to one or more examples, even if the first bioelectrical impedance is not received from the first electrode body 110 , when the second bioelectrical impedance is received from the second electrode body 120 , the one or more processors 10 may obtain the total body water based on the second bioelectrical impedance.

[0128] Figure 11 2 are diagrams illustrating implementation examples of electronic devices according to various embodiments.

[0129] Reference Figure 11 , the electronic device 100 may be implemented as a fabric or clothing integrated device 100 ′ (eg, electronic clothing) or a body attached device 100 ″ (eg, a skin pad, a tattoo), etc.

[0130] According to various examples, when the electronic device 100 is implemented as a clothing-integrated device, and when a user exercises while wearing the clothing-integrated device, even if the activity level of muscle cells increases according to the user's activity state, one or more processors 10 can also appropriately adjust the error between the measured total body water volume and the actual total body water volume due to the activity of muscle cells.

[0131] Furthermore, the one or more processors 10 may identify the activity level of muscle cells included in the local area in contact with the electronic device using bioelectrical impedance that is sensitive to the activity level of muscle cells.

[0132] Figure 12 1 is a flowchart illustrating an example method for controlling an electronic device according to various embodiments. According to various embodiments, a method for controlling an electronic device including a first electrode body and a second electrode body in contact with a user's body includes: at operation S1210, obtaining a first bioelectrical impedance through the first electrode body, the first electrode body including first and second current electrodes symmetrically arranged in a first direction and first and second voltage electrodes symmetrically arranged in the first direction.

[0133] The method may include obtaining a second bioelectrical impedance through a second electrode body including third and fourth current electrodes symmetrically arranged in the second direction and third and fourth voltage electrodes symmetrically arranged in the second direction at operation S1220.

[0134] The method may include identifying one of the first bioelectrical impedance and the second bioelectrical impedance based on a phase of each of the first bioelectrical impedance and the second bioelectrical impedance at operation S1230.

[0135] The method may include obtaining a total body water amount of the user using the identified bioelectrical impedance at operation S1240.

[0136] The method may include providing the obtained total body water amount at operation S1250.

[0137] According to various embodiments, the operation of identifying in operation S1230 may include identifying the first bioelectrical impedance based on a phase corresponding to the first bioelectrical impedance being lower than a phase corresponding to the second bioelectrical impedance.

[0138] The method according to various embodiments may further include identifying a muscle activity level of the user based on the second bioelectrical impedance, and the muscle activity level may correspond to an activity level of muscle cells included in a local area of ​​the body in contact with the electronic device.

[0139] According to various embodiments, the operation of obtaining a first bioelectrical impedance in operation S1210 may include: identifying a phase change corresponding to the first bioelectrical impedance by obtaining the first bioelectrical impedance at a preset time interval via a first electrode body, and the operation of obtaining a second bioelectrical impedance in operation S1220 may include: identifying a phase change corresponding to the second bioelectrical impedance by obtaining the second bioelectrical impedance at a preset (e.g., specified) time interval via a second electrode body, the operation of identifying one of the first bioelectrical impedance and the second bioelectrical impedance in operation S1230 may include: identifying the first bioelectrical impedance based on that the phase change corresponding to the first bioelectrical impedance is lower than the phase change corresponding to the second bioelectrical impedance, the operation of obtaining the total body water amount in operation S1240 may include: obtaining fluctuations in the total body water amount based on the first bioelectrical impedance obtained at preset time intervals, and the operation of providing in operation S1250 may include: providing fluctuations in the total body water amount.

[0140] The operation of obtaining the fluctuation of the total body water amount according to various embodiments may include adjusting the total body water amount obtained based on the first bioelectrical impedance based on a phase change corresponding to the second bioelectrical impedance exceeding a threshold range within a threshold time.

[0141] The operation of obtaining the fluctuation of the total body water amount according to various embodiments may include: ignoring the fluctuation of the total body water amount according to the phase change corresponding to the first bioelectrical impedance during the threshold time based on the phase change corresponding to the second bioelectrical impedance within the threshold time exceeding the threshold range.

[0142] A first bioelectrical impedance according to various embodiments can be obtained by a first voltage electrode and a second voltage electrode, and the first voltage electrode and the second voltage electrode are symmetrically arranged to correspond to a horizontal direction of muscle cells included in a local area of ​​the body that contacts the electronic device. A second bioelectrical impedance can be obtained by a third voltage electrode and a fourth voltage electrode, and the third voltage electrode and the fourth voltage electrode are symmetrically arranged to correspond to a vertical direction of the muscle cells. The first direction can correspond to the horizontal direction of the muscle cells, and the second direction can correspond to the vertical direction of the muscle cells.

[0143] According to various embodiments, the electronic device may further include: a third electrode body, which is arranged to be away from each of the first electrode body and the second electrode body, and the method may further include: obtaining a third bioelectrical impedance through the third electrode body, and the operation of obtaining the total body water volume includes: obtaining the total body water volume based on the third bioelectrical impedance based on the phase corresponding to the third bioelectrical impedance being relatively lower than the phases corresponding to the first bioelectrical impedance and the second bioelectrical impedance respectively.

[0144] According to various embodiments, the electronic device may be implemented as a wearable device including a display on a front surface, and each of the first electrode body and the second electrode body may be remotely disposed at a rear surface of the wearable device, and the operation of providing includes providing the total amount of water through the display.

[0145] Various embodiments are applicable not only to electronic devices but also to all types of electronic devices including an electrode body.

[0146] The various example embodiments described above can be implemented in a recordable medium, which can be read by a computer or computer-like device using software, hardware, or a combination of software and hardware. In some cases, the embodiments described herein can be implemented by a processor itself. Depending on the software implementation, the embodiments described herein (such as procedures and functions) can be implemented using separate software modules. Each of the above software modules can perform one or more of the functions and operations described herein.

[0147] Computer instructions for executing the processing operations of the electronic device 100 according to the various embodiments described above may be stored in a non-transitory computer-readable medium. When the computer instructions stored in the non-transitory computer-readable medium are executed by a processor of a specific device, the specific device may execute the processing operations of the electronic device 100 according to the various embodiments described above.

[0148] A non-transitory computer-readable medium may refer to, for example, a medium that stores data (such as a register, cache, or memory) and can be read by a device. For example, the various applications, instructions, or programs described above may be stored and provided on a non-transitory computer-readable medium (e.g., a compact disc (CD), a digital versatile disc (DVD), a hard disk, a Blu-ray disc, a universal serial bus (USB), a memory card, a read-only memory (ROM), etc.).

[0149] While the present disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the present disclosure, including the appended claims and their equivalents. It should also be understood that any embodiment described herein may be used in combination with any other embodiment described herein.

Claims

1. An electronic device comprising: a first electrode body configured to be in contact with the body and including first and second current electrodes symmetrically arranged in a first direction and first and second voltage electrodes symmetrically arranged in the first direction; a second electrode body configured to be in contact with the body and including a third current electrode and a fourth current electrode arranged symmetrically in a second direction and a third voltage electrode and a fourth voltage electrode arranged symmetrically in the second direction; as well as One or more processors configured to: obtaining a first bioelectrical impedance through the first electrode body, A second bioelectrical impedance is obtained through the second electrode body, identifying one of the first bioelectrical impedance and the second bioelectrical impedance based on a phase of each of the first bioelectrical impedance and the second bioelectrical impedance, Use identified bioelectrical impedance to obtain total body water content, and Provides total body water gained.

2. The electronic device according to claim 1, wherein The one or more processors are configured to identify the first bioelectrical impedance based on a phase corresponding to the first bioelectrical impedance being lower than a phase corresponding to the second bioelectrical impedance.

3. The electronic device according to claim 2, wherein: The one or more processors are configured to: identify a muscle activity level based on the second bioelectrical impedance, The muscle activity level corresponds to the activity level of muscle cells in a local area of ​​the body that is in contact with the electronic device.

4. The electronic device according to claim 1, wherein The one or more processors are configured to: identifying a phase change corresponding to the first bioelectrical impedance by obtaining the first bioelectrical impedance at preset time intervals via the first electrode body, identifying a phase change corresponding to the second bioelectrical impedance by obtaining the second bioelectrical impedance at preset time intervals via the second electrode body, obtaining the fluctuation of the total body water amount based on the first bioelectrical impedance obtained at preset time intervals based on a phase change corresponding to the first bioelectrical impedance being lower than a phase change corresponding to the second bioelectrical impedance, and Fluctuations in the total body water content are provided.

5. The electronic device according to claim 4, wherein: The one or more processors are configured to adjust and provide the total body water obtained based on the first bioelectrical impedance based on a phase change corresponding to the second bioelectrical impedance exceeding a threshold range within a threshold time.

6. The electronic device according to claim 5, wherein: The one or more processors are configured to ignore fluctuations in the total body water amount according to the phase change corresponding to the first bioelectrical impedance during the threshold time based on the phase change corresponding to the second bioelectrical impedance within the threshold time exceeding the threshold range.

7. The electronic device according to claim 1, wherein: The first bioelectrical impedance is obtained by the first voltage electrode and the second voltage electrode, wherein the first voltage electrode and the second voltage electrode are symmetrically arranged to correspond to a horizontal direction of muscle cells included in a local area of ​​the body in contact with the electronic device, wherein the second bioelectrical impedance is obtained by the third voltage electrode and the fourth voltage electrode, wherein the third voltage electrode and the fourth voltage electrode are symmetrically arranged to correspond to the vertical direction of the muscle cell, wherein the first direction corresponds to the horizontal direction of the muscle cell, and The second direction corresponds to the vertical direction of the muscle cells.

8. The electronic device according to claim 1, further comprising: a third electrode body disposed away from each of the first electrode body and the second electrode body, The one or more processors are configured to: obtaining a third bioelectrical impedance through the third electrode body, and The total body water amount is obtained based on the third bioelectrical impedance based on the phase corresponding to the third bioelectrical impedance being relatively lower than the phases corresponding to the first bioelectrical impedance and the second bioelectrical impedance, respectively.

9. The electronic device according to claim 1, wherein: The electronic device comprises a wearable device comprising a display on a front surface, wherein each of the first electrode body and the second electrode body is provided at the rear surface of the wearable device, and Wherein, the one or more processors provide the total body water content via the display.

10. A method of controlling an electronic device including a first electrode body and a second electrode body in contact with a body, the method comprising: obtaining a first bioelectrical impedance by using the first electrode body, wherein the first electrode body includes a first current electrode and a second current electrode symmetrically arranged in a first direction and a first voltage electrode and a second voltage electrode symmetrically arranged in the first direction; obtaining a second bioelectrical impedance by the second electrode body, wherein the second electrode body includes a third current electrode and a fourth current electrode symmetrically arranged in a second direction and a third voltage electrode and a fourth voltage electrode symmetrically arranged in the second direction; identifying one of the first bioelectrical impedance and the second bioelectrical impedance based on a phase of each of the first bioelectrical impedance and the second bioelectrical impedance; Use identified bioelectrical impedance to obtain total body water; and Provides total body water gained.

11. The method according to claim 10, wherein: The operation of identifying includes identifying the first bioelectrical impedance based on a phase corresponding to the first bioelectrical impedance being lower than a phase corresponding to the second bioelectrical impedance.

12. The method of claim 11, wherein: The method further includes: identifying a muscle activity level based on the second bioelectrical impedance, The muscle activity level corresponds to the activity level of muscle cells in a local area of ​​the body that is in contact with the electronic device.

13. The method of claim 10, wherein: The operation of obtaining the first bioelectrical impedance includes: obtaining the first bioelectrical impedance at preset time intervals via the first electrode body to identify a phase change corresponding to the first bioelectrical impedance, The operation of obtaining the second bioelectrical impedance includes: obtaining the second bioelectrical impedance at preset time intervals via the second electrode body to identify a phase change corresponding to the second bioelectrical impedance, The operation of identifying one of the first bioelectrical impedance and the second bioelectrical impedance includes: identifying the first bioelectrical impedance based on a phase change corresponding to the first bioelectrical impedance being lower than a phase change corresponding to the second bioelectrical impedance; The operation of obtaining the total body water content includes: obtaining fluctuations in the total body water content based on the first bioelectrical impedance obtained at preset time intervals, and The providing operation includes: providing the fluctuation of the total body water content.

14. The method of claim 13, wherein: The operation of obtaining the fluctuation of the total body water content includes: adjusting the total body water content obtained based on the first bioelectrical impedance based on a phase change corresponding to the second bioelectrical impedance exceeding a threshold range within a threshold time.

15. The method of claim 14, wherein: The operation of obtaining the fluctuation of the total body water volume includes: based on the phase change corresponding to the second bioelectrical impedance within the threshold time exceeding the threshold range, ignoring the fluctuation of the total body water volume according to the phase change corresponding to the first bioelectrical impedance during the threshold time.

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