WO2022039502A1

WO2022039502A1 - Electronic apparatus for measuring biological signal, and operation method in electronic apparatus

Info

Publication number: WO2022039502A1
Application number: PCT/KR2021/010974
Authority: WO
Inventors: 정현준; 김영현
Original assignee: 삼성전자 주식회사
Priority date: 2020-08-20
Filing date: 2021-08-18
Publication date: 2022-02-24
Also published as: KR20220023129A

Abstract

An electronic apparatus according to an embodiment of the present document comprises: an electrode module comprising at least three electrodes; a measurement module comprising at least one switch and a current circuit; memory; and a processor. The processor can: configure the measurement module to operate in a first mode on the basis that a first electrode and a second electrode among the at least three electrodes come into contact with a first part of a human body; obtain skin conductance information on the basis of a first signal measured by means of the measurement module during the operation in the first mode; store the obtained skin conductance information in the memory; switch the operation mode of the measurement module to a second mode by means of the at least one switch, on the basis that a designated event has occurred during the operation in the first mode; obtain electrocardiogram information on the basis of a second signal measured by means of the measurement module in the second mode, on the basis that a third electrode comes into contact with a second part of the human body while the first electrode and second electrode are in contact with the first part; store the obtained electrocardiogram information in the memory; and switch to the first mode after designated time elapses in the second mode. Other embodiments may also be possible.

Description

Electronic device for measuring biosignals and operating method in the electronic device

Various embodiments of the present disclosure relate to an electronic device for measuring a biosignal and an operation method in the electronic device.

In recent years, electronic devices have been developed in various forms for user convenience, and have been miniaturized so that the user can conveniently carry them.

Recently, interest in health has increased, and interest in exercise as a means to maintain health is also increasing. Accordingly, electronic devices are being developed in various forms to measure and utilize various bio-signals of the human body, and provide various services for managing a user's health or checking a health state by measuring various bio-signals.

Among various biosignals measured in the human body, there are an electrocardiogram signal and a skin conductance signal. Conventionally, an electrocardiogram (ECG) signal and a skin conductance signal are measured separately using a separate device, or separately from one device. The modules were configured and performed separately. Accordingly, a change in the structure of the device for measuring biosignals or additional space is required, and additional configuration costs are incurred.

In addition, since electronic devices for measuring biosignals are being miniaturized for convenient measurement and portability, adding a configuration for additional functions to the electronic device causes difficulty in miniaturizing the electronic device.

According to various embodiments of the present disclosure, there may be provided an electronic device for measuring a biosignal for measuring skin conductivity using an electrocardiogram measuring module, and an operating method of the electronic device.

According to an embodiment of the present document, an electronic device includes an electrode module including at least three electrodes, a measurement module including at least one switch and a current circuit, a memory, and a processor, wherein the processor includes at least three Based on that the first electrode and the second electrode of the electrodes are in contact with the first part of the human body, the measurement module is set to operate in the first mode, and the measurement module performs measurement by the measurement module while operating in the first mode Acquire skin conductivity information based on the first signal, store the obtained skin conductivity information in the memory, and use the at least one switch based on occurrence of a specified event during operation in the first mode to switch the operation mode of the measurement module to the second mode, and based on the contact of the third electrode to the second part of the human body while the first electrode and the second electrode are in contact with the first part, In the second mode, electrocardiogram information is acquired based on a second signal measured by the measurement module, the acquired electrocardiogram information is stored in the memory, and after a specified time has elapsed in the second mode, the first mode can be configured.

In addition, according to an embodiment, in the method of operation in the electronic device, the measurement module of the electronic device is configured to be first setting to operate in mode 1, obtaining skin conductivity information based on a first signal measured by the measurement module while operating in the first mode, and storing the obtained skin conductivity information in a memory; An operation of switching the operation mode of the measurement module to a second mode by using at least one switch included in the measurement module based on occurrence of a specified event during operation in the first mode, the first part Based on the contact of the third electrode with the second part of the human body while the first electrode and the second electrode are in contact, ECG information is obtained based on the second signal measured by the measurement module in the second mode. acquiring, storing the acquired electrocardiogram information in the memory, and switching to the first mode after a specified time has elapsed in the second mode.

According to various embodiments of the present disclosure, since the electronic device can measure skin conductivity using an electrocardiogram measurement module without adding a separate device and configuration for measuring the skin conductivity, a structural change according to an additional configuration, additional space, and cost are generated. By configuring at least two electrodes to be in contact with the skin continuously, the user's health status can be monitored by measuring the skin conductivity signal at all times, so that the health status can be continuously checked and the health risk status can be detected. It has a predictable effect.

In addition, various effects directly or indirectly identified through this document may be provided.

1 is a diagram illustrating a network environment according to various embodiments of the present disclosure;

2 is a diagram illustrating an example of a configuration of an electronic device according to an embodiment.

3 is a diagram illustrating an example of a configuration of an electronic device according to an embodiment.

4A and 4B are diagrams illustrating an example of measuring a biosignal of an electronic device according to an exemplary embodiment.

5 is a diagram illustrating an example of a configuration of a measurement module of an electronic device according to an embodiment.

6A and 6B are diagrams illustrating an example of a configuration of a measurement module of an electronic device according to an embodiment.

7A is a diagram illustrating an example of a configuration of a measurement module of an electronic device according to an embodiment.

7B and 7C are diagrams illustrating examples of signals of skin conductivity measured by an electronic device according to an exemplary embodiment.

8 is a flowchart illustrating an example of a method of operating an electronic device according to an embodiment.

9 is a diagram illustrating an example of a method of operating a measurement module of an electronic device according to an embodiment.

10 is a flowchart illustrating an example of a method of operating an electronic device according to an embodiment.

11 is a diagram illustrating an example of a skin conductivity signal measured according to a method of operating an electronic device according to an exemplary embodiment.

In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

Hereinafter, an electronic device according to various embodiments will be described with reference to the accompanying drawings. The term user used in various embodiments may refer to a person who uses an electronic device or a device (eg, an artificial intelligence electronic device) using the electronic device.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments. Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with at least one of the electronic device 104 and the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 may be included. In some embodiments, at least one of these components (eg, the connection terminal 178 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components (eg, sensor module 176 , camera module 180 , or antenna module 197 ) are integrated into one component (eg, display module 160 ). can be

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be stored in the volatile memory 132 , and may process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 . According to an embodiment, the processor 120 is the main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 101 includes the main processor 121 and the sub-processor 123 , the sub-processor 123 may use less power than the main processor 121 or may be set to be specialized for a specified function. can The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the co-processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). there is. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176 ). The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input module 150 may receive a command or data to be used in a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output a sound signal to the outside of the electronic device 101 . The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. The receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device. According to an embodiment, the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input module 150 , or an external electronic device (eg, a sound output module 155 ) connected directly or wirelessly with the electronic device 101 . A sound may be output through the electronic device 102 (eg, a speaker or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more designated protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a LAN (local area network) communication module, or a power line communication module). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 includes various technologies for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 192 may support various requirements specified in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ). According to an embodiment, the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less).

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 197 .

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal (eg commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the external

electronic devices

102 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or a part of operations executed in the electronic device 101 may be executed in one or more external

electronic devices

102 , 104 , or 108 . For example, when the electronic device 101 is to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an Internet of things (IoT) device. Server 108 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199 . The electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

2 is a diagram illustrating an example of a configuration of an electronic device according to an embodiment, FIG. 3 is a diagram illustrating an example of a configuration of an electronic device according to an embodiment, and FIGS. 4A and 4B are electronic devices according to an embodiment It is a figure which shows an example of biosignal measurement of a device.

Referring to FIG. 2 , an electronic device 201 (eg, the electronic device 101 of FIG. 1 ) according to an embodiment includes at least one processor 210 , an electrode module 220 , a measurement module 230 , and a memory. 240 , the display 250 , the sensor module 260 and/or the communication module 270 may be included. The electronic device 201 is not limited thereto, and may be configured by further including various components or by excluding some of the components.

According to an embodiment, the electronic device 201 is, for example, a wearable device in the form of a wrist watch that can be worn on the user's wrist or other parts of the human body (eg, the head, forearm, thigh, or a human body capable of measuring an electrocardiogram). It may be a wearable device that can be worn on other parts).

2 and 3 , an electronic device 201 according to an embodiment has a first surface 310 (eg, a rear surface), a second surface 320 (eg, a front surface), and a first surface 310 . ) (eg, a rear surface) and a third surface 330 (eg, a side surface) surrounding a space between the second surface 320 (eg, a front surface).

As shown in (a) of Figure 3, at least two parts of the first members (303a and 303b) disposed on the first surface 310 (eg, the rear surface) that is one surface of the housing 301 to the electrode module 220. It may be configured by disposing the included first electrode 221 and second electrode 222 . According to various embodiments, the first electrode 221 and the second electrode 222 may be in contact with a part of the user's body (eg, wrist) when the electronic device 201 is worn. It may be disposed on the first side 310 (eg, the back side) of the. As shown in FIG. 3B, the electronic device 201 has a second member ( The third electrode 223 included in the electrode module 220 may be disposed on at least one portion of the 305 .

According to various embodiments, when the electronic device 201 is worn, the third electrode 223 may be disposed on at least one portion of the housing 301 so as not to come into contact with a part of the user's body. According to an embodiment, the third electrode 223 may be disposed on the second surface 320 (eg, a front surface) of the electronic device 201 . For example, the third electrode 223 may be disposed on or included in the display 250 in the form of a transparent electrode (eg, indium tin oxide: ITO). According to some embodiments, the number of third electrodes 223 may be plural. The plurality of third electrodes 223 may operate as one channel or operate as different channels. The electronic device 201 includes at least one sensor 261 in contact with or close to the skin of the human body to the third member 307 formed in a shape surrounded by the

first members

303a and 303b disposed on the first surface. can be placed At least one sensor 261 may be included in the sensor module 260 . For example, the at least one sensor 261 may be a sensor capable of measuring at least one biosignal. For example, the third electrode 223 may be disposed on the third surface 330 (eg, a side surface) that is another surface of the housing 301 . According to an embodiment, the third electrode 223 may have a button shape disposed on a side surface of the electronic device 201 .

2 and 3 , the processor 210 according to an embodiment includes an electrode module 220 , a measurement module 230 , a memory 240 , a display 250 , a sensor module 260 and/or communication It may be electrically connected to the module 270 .

According to an embodiment, the processor 210 includes a first electrode 221 and a second one of at least three electrodes (eg, the first electrode 221 , the second electrode 222 , and the third electrode 223 ). It may be identified that the electrode 222 is in contact with a first part (eg, a wrist region) of a human body or connection points (eg, a first connection point and a second connection point) of the first part. The processor 210 is configured to connect the first electrode 221 and the second electrode 222 to a first part (eg, a wrist region) of a human body or connection points (not shown) of the first part (eg, a first connection point and a second connection point). connection point), the measurement module 230 may be controlled so that the measurement module 230 operates in the first mode. For example, as shown in FIG. 4A , when the electronic device 201 is worn on the first part 401 of the human body (eg, the wrist part of the human body), the processor 210 operates the first part ( It may be identified that the first electrode 221 is in contact with one of the two points 401 and that the second electrode 222 is in contact with the other second connection point. For example, the first electrode 221 and the second electrode 222 may be in contact with the first connection point and the second connection point, respectively, at substantially the same time.

According to an embodiment, the processor 210 acquires skin conductance (hereinafter referred to as skin conductance or electrodermal activity, EDA) information based on a first signal measured by the measurement module 230 while operating in the first mode and the obtained EDA information may be stored in the memory 240 . Here, the first mode may be referred to as an EDA measurement mode. The processor 210 may acquire EDA information according to time by continuously measuring the first signal while operating in the first mode, and based on the EDA information, information related to various body states (eg, stress, You can acquire arousal, sleep, activity, skin hydration level, or epilepsy (epilepsy). Here, EDA is a characteristic of the human body that causes a change in the electrical properties of the skin, and may be measured through stimulation of sweat glands present in the skin. The EDA signal may be measured in units of electrical conductivity based on the principle that electrical conductivity increases when sweat glands are stimulated. The processor 210 may continuously monitor the EDA signal by acquiring the EDA signal over time by measuring a change in electrical conductivity over time, and may obtain information related to various body states by monitoring the EDA signal. can

According to an embodiment, the processor 210 changes the intensity of an input current by a current circuit included in the measurement module 230 based on the occurrence of a specified event during operation in the first mode, and the measurement module 230 ), the operation mode of the measurement module 230 may be switched to the second mode by using at least one switch included in the . For example, the designated event may include execution of an application related to the second mode, a designated gesture input, or a designated voice input. After the processor 210 is switched to the second mode, in a state in which the first electrode 221 and the second electrode 222 are in contact with the connection points of the first part of the human body, the third electrode is connected to the connection points of the second part of the human body. When 223 is touched, electrocardiogram (ECG) information may be acquired based on the second signal measured by the measurement module 230 for a specified time (eg, a first time). The specified time (eg, the first time) is a time for operating in the ECG measurement mode, and may be, for example, about 30 seconds. The processor 210 may store the obtained ECG information in the memory 240 . For example, the second mode may be referred to as an ECG measurement mode. For example, as shown in FIG. 4B , the processor 210 connects the first electrode 221 and the second electrode 222 to the first part 401 of the human body (eg, the wrist region or connection points of the wrist region). ), when the third electrode 223 comes into contact with the second part 403 of the human body (eg, a finger of the other hand or a connection point of a finger of the other hand), the third electrode 223 is the second A contact with the portion 403 can be identified. For example, when the processor 210 is switched to the second mode, the processor 210 may transmit a second control signal to the measurement module 230 so that the measurement module 230 operates in the second mode. For example, the second control signal is information for changing and/or setting registers (eg, analog front-end (AFE) setting values) in the measurement module 230 , and is a designated value of the second mode. Current source strength (eg, about 12 nA), a specified current source frequency value of the second mode (eg, about 250 Hz), information indicating whether the at least one switch in the second mode is on or off (eg, first switch: off, It may include at least one of a second switch: off and a third switch: on).

According to an exemplary embodiment, the processor 210 performs a state in which the first electrode 221 and the second electrode 222 are in contact with the first portion 401 of the human body (eg, the wrist portion or connection points of the wrist portion). When it is detected that the third electrode 223 is not in contact with the connection point of the second part of the human body (eg, the connection point of the finger of the other hand or the finger of the other hand), the operation mode of the measurement module 230 is switched to the first mode. can

According to an embodiment, the processor 210 may switch the operation mode of the measurement module 230 to the first mode after a specified time (eg, the second time) has elapsed. For example, the specified time (eg, second time) may mean a time for changing and/or setting registers (eg, analog front end (AFE) setting values) for operating in the first mode. .

For example, when the processor 210 is switched to the first mode, the processor 210 may transmit a first control signal to the measurement module 230 so that the measurement module 230 operates in the first mode. For example, the first control signal is information for changing and setting registers (eg, analog front-end (AFE) setting values) in the measurement module 230, and a specified current source strength of the first mode (eg, about 100 nA) , a specified current source frequency value of the first mode (eg, about 8 Hz), and/or switch change information of the first mode. For example, the switch change information of the first mode is information indicating whether at least one switch included in the measurement module 230 is on or off (eg, first switch: on, second switch: on, and third switch) : off).

According to an embodiment, the processor 210 may display the obtained ECG information and EDA information on the display 250 . For example, the processor 210 may control the display 250 to display information related to the user's physical state acquired based on the acquired ECG information and EDA information. For example, the processor 210 monitors the EDA information continuously acquired over time and displays information (eg, warning information or guidance information) related to abnormal symptoms of the user's health condition based on the monitored EDA information ( 250) can be controlled. For example, the processor 210 may include additional information (eg, at least one of health training information, hospital information, first aid information, or information for stress relief) according to the user's physical condition or health condition based on the monitored EDA information. , and control to display the acquired additional information on the display 250 .

According to an embodiment, the processor 210 transmits the ECG information and the EDA information obtained through the communication module 270 to an external electronic device (eg, the user's

electronic device

102 or 104 in FIG. 1 , the server ( 108) or another user's electronic device). For example, the processor 210 may include information related to the user's physical condition obtained based on the ECG information and the EDA information, information related to an abnormal symptom of the user's health condition (eg, warning information or guidance information), or the user's physical condition Alternatively, at least one of additional information (eg, at least one of health training information, hospital information, first aid information, and information for relieving stress) according to the health state may be transmitted to the external electronic device through the communication module 270 .

According to an embodiment, the processor 210 is a hardware module or a software module (eg, an application program), and includes various sensors, a data measurement module, an input/output interface, and an electronic device 201 included in the electronic device 201 . It may be a hardware component (function) or a software component (program) including at least one of a module or a communication module for managing the state or environment of the .

According to an embodiment, the processor 210 may include, for example, one or a combination of two or more of hardware, software, and firmware. The processor 210 may be configured to omit at least some of the above components or further include other components for performing an image processing operation in addition to the above components.

2 and 3 , the electrode module 220 according to an embodiment may include at least three electrodes respectively connected to designated connection points of the human body. The electrode module 220 is disposed on the first surface 310 (eg, the rear surface) of the housing 301 of the electronic device 201 and includes at least two electrodes (eg, the first electrode 221 and the 2 electrodes 222 ) are disposed, and the at least three One electrode (eg, the third electrode 223 ) may be disposed among the plurality of electrodes. For example, a portion of the formed second member 305 may be the third surface 330 (eg, a side surface) of the housing.

2 and 3 , the measurement module 230 according to an embodiment may include at least one switch and a current circuit, and may be configured to be electrically connected to the electrode module 220 and the processor 210 . .

According to an embodiment, the measurement module 230 operates in the first mode when the first switch connected to the second electrode 221 and the third electrode 223 of the at least one switch is turned on. , by applying an input current of a first current strength to a first path formed between the first electrode 221 and the third electrode 223 by using a current circuit, the resistance between the first electrode 221 and the second electrode 222 and measure the first signal based on the value.

According to an embodiment, the measurement module 230 is configured to operate in the second mode when the first switch disposed between the second electrode 221 and the third electrode 223 among the at least one switch is off. configured to measure a second signal corresponding to the voltage between the first electrode 221 and the third electrode 223 when an input current of a second input current intensity that is constantly output using a current circuit is applied. can be

Referring to FIG. 2 , the memory 240 according to an embodiment may store an application. For example, the memory 130 may store an application (function or program) related to an electrocardiogram measurement, an exercise application, or a health management application.

The memory 240 according to an embodiment may store various data generated during execution of the program 140 , including a program (eg, the program 140 of FIG. 1 ) used for functional operation. The memory 240 may largely include a program area 140 and a data area (not shown). The program area 140 may store related program information for driving the electronic device 201 , such as an operating system (OS) for booting the electronic device 201 (eg, the operating system 142 of FIG. 1 ). The data area (not shown) may store transmitted and/or received data and generated data according to various embodiments. In addition, the memory 240 may be a flash memory, a hard disk, or a multimedia card micro type memory (eg, secure digital (SD) or extreme digital (XD) memory). ), RAM, and ROM may be configured to include at least one storage medium. According to an embodiment, the memory 240 includes information for changing or setting skin conductivity (EDA) measurement result information, electrocardiogram (ECG) measurement result information, EDA measurement mode or registers for operating in the ECG measurement mode, and/or It is possible to store electrode combination information.

Referring to FIG. 2 , the display 250 according to an exemplary embodiment may display information related to a user's physical state obtained based on ECG information and EDA information. The display 250 is based on the monitored EDA information, information related to abnormal symptoms of the user's health status (eg, warning information or guidance information) or additional information (eg, health training information, at least one of hospital information, first aid information, or information for relieving stress) may be displayed.

According to an embodiment, the display 250 may be implemented in the form of a touch screen. When the display 250 is implemented together with an input module in the form of a touch screen, various information generated according to a user's touch operation may be displayed.

According to an embodiment, the display 250 is a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), an organic light emitting diode (OLED), a light emitting diode (LED), an active matrix organic LED (AMOLED), It may be composed of at least one or more of a micro LED, a mini LED, a flexible display, and a three-dimensional display. In addition, some of these displays may be configured as a transparent type or a light transmitting type so that the outside can be viewed through them. This may be configured in the form of a transparent display including a transparent OLED (TOLED).

According to another embodiment, in addition to the display 250, another mounted display module (eg, an extended display or a flexible display) may be further included.

2 and 3 , the sensor module 260 according to an embodiment may include various sensors related to biosignal detection (eg, at least one sensor of FIG. 3 , such as an electrocardiogram (ECG) sensor or photoplethysmography (PPG)). ) sensor) 261).

Referring to FIG. 2 , the communication module 270 according to an embodiment communicates with an external electronic device (eg, the

electronic device

102 or 104 of FIG. 1 , the server 108 of FIG. 1 , or another user's electronic device). can communicate For example, the communication module 270 may receive information used for ECG measurement or EDA measurement from an external electronic device or transmit ECG measurement or EDA measurement result information. According to an embodiment, the communication module 270 may include a cellular module, a wireless-fidelity (Wi-Fi) module, a Bluetooth module, or a near field communication (NFC) module.

According to an embodiment, the electronic device 201 is not limited to the configuration shown in FIG. 2 and may further include various components.

According to an embodiment, the electronic device 201 includes an audio module (not shown) (eg, the audio module 170 of FIG. 1 ) or a vibration module (not shown) (eg, the haptic module 179 of FIG. 1 ). may include more. The audio module may output sound, and, for example, may be configured to include at least one of an audio codec, a microphone (MIC), a receiver, an earphone output (EAR_L), or a speaker. there is. The audio module may output ECG information or EDA information, information related to a user's physical condition obtained based on ECG information or EDA information, information related to an abnormal symptom of a user's health condition, or additional information as an audio signal. For example, the vibration module may output ECG information or EDA information, information related to a user's physical condition obtained based on ECG information or EDA information, information related to an abnormal symptom of the user's health condition, or additional information as vibration. .

As such, in an embodiment, the main components of the electronic device have been described through the electronic device 201 of FIG. 2 . However, in various embodiments, not all of the components illustrated in FIG. 2 are essential components, and the electronic device 201 may be implemented by more components than the illustrated components, or fewer components than the illustrated components. The electronic device 201 may be implemented by In addition, positions of major components of the electronic device 201 described above with reference to FIG. 2 may be changeable according to various embodiments.

Referring to FIG. 5 , a measurement module (eg, the measurement module 230 of FIG. 2 ) according to an embodiment includes a current circuit including

current sources

511 and 513 , a first switch 521 , and a second switch ( 523 ), the third switch 525 , the first circuit 531 amplifying the voltage between the first electrode 221 and the second electrode 222 , and the second circuit 533 connected to the second electrode 222 . It may be composed of The measurement module 230 may include a third circuit 541 connected to the first circuit 531 and converting an output signal of the first circuit 531 into a digital signal. The measurement module 230 may be at least a part of an analog front end (AFE) for measuring a biosignal (eg, an ECG signal or an EDA signal). The first switch 521 may be configured between the second electrode 221 and the third electrode 223 . The second switch 523 may be connected in parallel with the second circuit 533 and configured between the second electrode 222 and the third switch 525 . The third switch 525 may be connected to the second switch 523 and the first circuit 531 , and may be configured to connect the second circuit 533 to the first circuit 531 according to an operation mode.

According to an embodiment, as shown in FIG. 5A , the measurement module 230 responds to the second control signal received from the processor 210 when operating in the second mode (ECG measurement mode). Accordingly, the first switch 521 and the second switch 523 may be turned off, and the third switch 525 may be turned on.

According to an embodiment, the measurement module 230, as shown in FIG. 5B , when operating in the first mode (eg, EDA measurement mode), the first control received from the processor 210 According to a signal, the first switch 521 and the second switch 523 may be turned on and the third switch 525 may be turned off.

Referring to FIG. 5 , a current circuit according to an embodiment may include

current sources

511 and 513 configured to output currents of the same input current strength and have different current directions. The

current sources

511 and 513 may output a constant current, and the output range may range from several nA to several hundreds of nA. The direction of the current of the first current source 511 is designated as a sink operation that is directed to the ground, and the direction of the current of the second current source 513 is an operation that is directed in the opposite direction to the ground. source), a desired current may be applied only between the first current source 511 and the second current source 513 . The current circuit may operate by changing a sink-source pair for the

current sources

511 and 513 with a 50% duty cycle when operating in AC mode. . The measurement module 230 may measure a lower skin conductivity (EDA) as the intensity of the current output from the current circuit increases, and may adjust the intensity of the current output from the current circuit in a closed-loop manner. The current circuit performs lead on/off detection to verify contact with a second part of the human body (e.g., another finger or a junction point of another finger) at the ECG analog front end (AFE). It may be configured to output a constant current for

Referring to FIG. 5 , a first switch 521 , a second switch 523 , and a third switch 525 according to an exemplary embodiment include a first mode (eg, EDA measurement mode) and a second mode (eg, ECG). measurement mode), and may be turned on or off according to a control signal (eg, a first control signal or a second control signal) received from the processor 210 . The first switch 521 is turned on or off according to the operation mode of the measurement module 230 , so that electrodes used for ECG measurement or EDA measurement are input terminals of the first circuit 531 . can be connected to As the first switch 521 is turned on or off, the function of the second circuit 533 may be changed. As shown in Figure 5 (a), in order to operate the second circuit 533 in the second mode, the second switch 523 is changed to off (off), the third switch 525 is turned on ( on) can be changed. As shown in FIG. 5B , the second circuit 533 always outputs the voltage of the second circuit 533 as a specified voltage (eg, about 0.9V) in order to operate the second circuit 533 in the first mode. The switch 523 may be turned on, and the third switch 525 may be turned off.

Referring to FIG. 5 , the first circuit 531 according to an embodiment uses a voltage (or potential difference) between two connected electrodes (eg, the first electrode 221 and the third electrode 223 ) as an input signal. can be input.

According to an embodiment, when the skin conductivity is low (eg, when the resistance is large), the intensity of the current output from the current circuit is large, so that the voltage between the two electrodes is in a saturation state, so that meaningful data (input voltage) is transmitted. It cannot be obtained, and when the intensity of the current output from the current circuit is small, a meaningful signal (input voltage) can be obtained because an input is received within a linear range with respect to the voltage between the two electrodes. The first circuit 531 may amplify a voltage (or a potential difference) between the two connected electrodes. When the first switch 521 is switched to a second mode (eg, ECG measurement mode) as the first switch 521 is turned off, the first circuit 531 connects the first electrode 221 and the third electrode 223 to the input terminal. (eg, a + input terminal and a - input terminal) may be configured to be connected. When the first switch 521 is switched to the first mode (eg, EDA measurement mode) as the first switch 521 is turned on, the first circuit 531 connects the first electrode 221 and the second electrode 222 to the input terminal. (eg, a + input terminal and a - input terminal) may be configured to be connected. For example, the first circuit 531 may use an inverting amplifier (non-inverting amplifier) or an instrumentation amplifier (IA). The first circuit 531 may obtain a signal with higher resolution as the gain is higher, and may adjust the gain for higher resolution in a closed-loop manner. The first circuit 531 amplifies the input voltage signal based on the current and resistance values of the path between the first current source 511 and the second current source 513 , and transmits the amplified voltage signal to the third circuit 541 . can be printed out.

Referring to FIG. 5 , the second circuit 533 (eg, a right leg drive (RLD)) according to an embodiment biases a human body for passing a current to the human body while operating in a second mode (eg, an ECG measurement mode). By removing a body bias function and a common signal measured from the human body, a function for improving a common-mode rejection ratio (CMRR) for improving measurement of a weak human body signal may be performed. The second circuit 533 outputs a DC voltage signal of a specified voltage (eg, 0.9V) while operating in the first mode (eg, EDA measurement mode), and one connection terminal (eg, + input terminal) to perform a function for generating a reference voltage.

Referring to FIG. 5 , the third circuit 541 according to an embodiment receives an amplified voltage signal from the first circuit 531 according to an operation mode, and receives the input voltage signal (eg, a first signal or a second signal). signal) to a digital signal to output a voltage value (eg, ECG information or EDA information) as an ECG measurement result or EDA measurement result to the processor 210 or store it in the memory 240 under the control of the processor 210 there is. The wider the input range, the lower the skin conductivity measurement is possible, so the third circuit 541 increases the resolution of the signal (eg, the first signal or the second signal) obtained through oversampling. The sampling frequency (eg, the frequency of the current source) can be changed in a closed loop method using the resolution of the acquired EDA signal (eg, the first signal).

6A and 6B , when the measurement module (eg, the measurement module 230 of FIG. 2 ) according to an embodiment operates in the second mode (eg, the ECG measurement mode), the second electrode 222 Using a body bias using , 513) can be used. The measurement module 230 has an internal bias (pull down) or pull up (pull up) using a large resistance value between the input and the ground inside in the second mode (eg, ECG measurement mode). internal bias) may not be used. For example, a circuit in a lead-off state as shown in FIG. 6A and a circuit in a lead-on state in FIG. 6B as shown in FIG. 6B may have different paths. The measurement module is based on the fact that the magnitude of the resistance on the path through which the current flows in the read-off state and the read-on state is significantly different from each other. Voltage signals can be measured.

The measurement module 230 leads off a path in which an AC current output from the

current sources

511 and 513 is not formed between two electrodes (eg, the first electrode 221 and the third electrode 223 ). ) state or a lead-on state in which a path of AC current output from the

current sources

511 and 513 is formed between two electrodes (eg, the first electrode 221 and the third electrode 223) is detected. can do.

As shown in FIG. 6A , the measurement module 230 includes a first electrode 221 and a second electrode 222 in contact with connection points of a first part (eg, a left wrist region) of a human body, and a third electrode When a lead-off state in which 223 and the second part of the human body (eg, the right finger) do not contact is detected, the resistance value of the human body bias between the first electrode 221 and the second electrode 222 ( 617), an input current flows to the internal high impedance path 620, and the output signal 630 of the first circuit 531 may be output as a signal having a large magnitude. The

contact resistances Rcount

613 and 615 are resistance values on the path between the first electrode 221 and the second electrode 222 generated when the first electrode 221 and the second electrode 222 come into contact with the human body. can As shown in FIG. 6B , in the measurement module 230 , the first electrode 221 and the second electrode 222 are in contact with connection points of a first part (eg, left wrist) of the human body, and the third electrode When a lead-on state in contact with the 223 and the second part (eg, the right finger) of the human body is detected, the input current flows to the low-impedance path 640 , and the Since the output signal 650 may be output as a signal with a reduced magnitude, a lead on/off state may be detected using a difference in magnitude of the signal. The contact resistance Rcount 611 and the body bias resistance 610 are generated as the third electrode 223 comes into contact with the human body while the first electrode 221 and the second electrode 223 are in contact with the human body. It may be a resistance value on a path (a low-impedance path with low current) 640 between the first electrode 221 and the third electrode 223 .

7A is a diagram illustrating an example of a configuration of a measurement module of an electronic device according to an embodiment, and FIGS. 7B and 7C are diagrams illustrating an example of a signal of skin conductivity measured by the electronic device according to an embodiment.

Referring to FIG. 7A , when the measurement module (eg, the measurement module 230 of FIG. 2 ) according to an embodiment operates in the first mode (eg, the EDA measurement mode), the first switch 521 is turned on ( on), the second switch 523 is turned on, the third switch 525 is turned off, and the second electrode 222 is connected to one input terminal of the first circuit 531 (eg: + input terminal), and may be connected to one input terminal (eg, + input terminal) of the second circuit 533 at substantially the same time. In the first mode, the second circuit 533 may operate as a buffer that outputs a DC (bias potential) of a specified voltage (eg, 0.9V). The

current sources

511 and 513 reverse the direction of the current while outputting a current of the same magnitude so that the input current output from the second current source 513 is the contact resistance 613 of the first electrode 221, the body resistance ( body resistance) 617, the second electrode 222 through the first switch 521 in the path between the contact resistance 615 through the path 710 to the other second current source 513, the input current flows through the closed A closed loop may be formed. Accordingly, the first circuit 531 may output a voltage value by multiplying the current flowing through the path 710 and the resistance value in the path 710 . The measurement module 230 may measure a first signal (eg, an EDA signal) through a change in an output voltage value. For example, when measuring with DC current, the measurement module 230 measures without changing the direction of currents of the

current sources

511 and 513, and when measuring with AC current, The measurement may be performed while periodically changing the direction of the current of the

current sources

511 and 513 .

FIG. 7B may be a diagram illustrating an EDA signal obtained by the measurement module 230 applying an AC current having a current of about 100 nA and a sampling frequency of about 8 Hz.

In each graph shown in FIG. 7B , the horizontal axis may mean the number of samples. According to various embodiments, samples may be acquired in units of 0.2 ms, and in this case, 500 samples may mean 1 second. The vertical axis may mean a voltage value (unit: mV). The measurement module 230 has a positive peak 731 and a negative voltage value (potential difference, raw data) 720 output through the first circuit 531, as shown in (a) of FIG. 7B . ) of the peak 733 can be extracted. The output waveform by the

current sources

511 and 513 having different current directions may have a sawtooth shape, as shown in (b) of FIG. 7B . The measurement module 230 may extract a signal using a peak-to-peak method, and as shown in (c) of FIG. 7b , data obtained from a positive peak (731) ( 741 ) and data 743 obtained from the negative peak 733 may be obtained. The measurement module 230 filters the data 743 obtained through an inversion operation and the data 741 obtained from the positive peak with respect to the negative peak (eg, about 50 Hz) The average may be calculated by low pass filtering (LPF). The measurement module 230 may acquire the result data 750 of calculating the average, as shown in (d) of FIG. 7B . For example, the measurement module 230 may obtain a first signal (EDA signal) 761 measured based on the skin moisture level through the sweat glands stimulated by the user's cold water intake, as shown in FIG. 7C . The first signal (EDA signal) 761 obtained using the specified reference signal 763 having a peak value at the same position obtained through the reference voltage is measured as a significant peak value (parameter) it can be confirmed that The designated reference signal 763 may be a signal measured by an approved device.

According to an embodiment, the electronic device (eg, the electronic device 201 of FIGS. 2 and 3 ) includes an electrode module including at least three electrodes, a measurement module including at least one switch and a current circuit, a memory, and a processor including, wherein the processor sets the measurement module to operate in a first mode based on contact of a first electrode and a second electrode of the at least three electrodes with a first part of the human body, and During operation in the mode, skin conductivity information is obtained based on the first signal measured by the measurement module, the obtained skin conductivity information is stored in the memory, and a designated event occurs during operation in the first mode. Based on that, the operation mode of the measurement module is switched to a second mode by using the at least one switch, and the second part of the human body is in a state in which the first electrode and the second electrode are in contact with the first part. to obtain electrocardiogram information based on a second signal measured by the measurement module in the second mode, and store the obtained electrocardiogram information in the memory, and the second The mode may be configured to switch to the first mode after a specified time has elapsed.

According to an embodiment, the measurement module changes the first switch connected to the second electrode and the third electrode among the at least one switch to on so that the measurement module operates in the first mode, and , applying an input current of a first current strength output from the current circuit to a first path between the first electrode and the third electrode connected through the first switch, and the first electrode in contact with the first part; It may be configured to measure the first signal based on the applied input current and the body resistance value between the second electrodes.

According to an embodiment, when the measurement module switches the operation mode of the measurement module to the second mode, the first switch connected to the second electrode and the third electrode among the at least one switch is turned off ( off), the intensity of the input current constantly output from the current circuit is changed to the second current intensity, and the changed in the second path formed between the first electrode and the third electrode in the second operation mode Applying an input current of a second current strength, and in the second operation mode, the second signal corresponding to a voltage between the first electrode in contact with the first part and a third electrode in contact with the second part of the human body can be configured to measure

According to an embodiment, the measurement module includes the current circuit, a first circuit amplifying a voltage between the first electrode and the second electrode, a second circuit connected to the second electrode, and an operation mode of the measurement module A first switch that connects the second electrode and the third electrode according to the operation mode of the measurement module, a second switch that connects one input terminal and the second electrode of the second circuit according to an operation mode of the measurement module, and the measurement module A third switch for connecting one input terminal of the second circuit and one input terminal of the first circuit according to an operation mode may be included.

According to an embodiment, the measurement module may further include a third circuit connected to the first circuit and converting an output signal of the first circuit into a digital signal.

According to an embodiment, the measurement module is configured to change the first switch and the second switch to on according to a first control signal received from the processor in the first mode, and to turn on the third switch change to off, change the first switch and the second switch to off according to a second control signal received from the processor in the second mode, and turn on the third switch ) can be configured to change to

According to an embodiment, the current circuit includes a first current source connected to the third electrode and a second current source connected to the first electrode configured to output a current having the same input current strength and to have different current directions can do.

According to an embodiment, the designated event may include execution of an application related to the second mode, a designated gesture input, or a designated voice input.

According to an embodiment, the processor is configured to transmit a first control signal to the measurement module so that the measurement module operates in the first mode, wherein the first control signal includes a specified current source strength of the first mode, a first It may include at least one of the specified current source frequency value of mode 1 or switch change information of the first mode.

According to an embodiment, when the specified event occurs, the processor is configured to transmit a second control signal to the measurement module so that the measurement module operates in the second mode, wherein the second control signal is It may include at least one of a specified current source strength of two modes, a specified changed current source frequency value of the second mode, or switch change information of the second mode.

According to an embodiment, the electronic device may further include a display electrically connected to the at least one processor, and the processor may be configured to control the display to display the skin conductivity information or the electrocardiogram information. there is.

According to an embodiment, the electronic device further includes a communication module electrically connected to the at least one processor, wherein the processor is configured to transmit the skin conductivity information or the electrocardiogram information to an external electronic device. can be configured to control

According to an embodiment, the first electrode and the second electrode may be configured to be disposed on one surface of the housing of the electronic device, respectively, and the third electrode may be configured to be disposed on the other surface of the housing.

A series of operations described below may be performed by a processor (eg, the processor 210 of FIG. 2 ) of the electronic device (eg, the electronic device 201 of FIGS. 2 and 3 ).

Referring to FIG. 8 , in operation 801 , an electronic device (eg, the electronic device 201 of FIG. 2 ) according to an embodiment includes at least 3 electrodes included in an electrode module (eg, the electrode module 220 of FIG. 2 ). Based on the contact between the first electrode and the second electrode among the electrodes in the first part of the human body (eg, the connection points of the wrist region), the biosignal measurement module (eg, the measurement module of FIG. 2 ) 230)) may be set to operate in the first mode. For example, the electronic device is worn on a first part of a human body (eg, a wrist region) and a first electrode (eg, the first electrode ( 221)) and a second electrode (eg, the second electrode 222 of FIG. 3 ) may be in contact with the connection points of the first portion substantially simultaneously. In the electronic device, as the first electrode and the second electrode come into contact with the connection points of the first portion, resistance of the human body bias is generated between the first electrode and the second electrode, and the current circuit included in the biosignal measuring module (eg, FIG. 3 ) A first path of an input current that is constantly output from the

current sources

511 and 513 of ) may be formed. To the electronic device, an input current constantly output from the current circuit may be applied through a first path. The electronic device may change the first switch (eg, the first switch 521 of FIG. 5 ) included in the biosignal measuring module to on to set the operation mode of the biosignal measuring module to the first mode. Here, the first switch may be disposed between the second electrode and the third electrode, and may connect the second electrode and the third electrode as the switch is turned on. As the first switch is turned on, the biosignal measuring module is connected to the + input terminal of the first circuit (eg, the first circuit 531 of FIG. 5 ) of the biosignal measuring module through the first switch. The electrode may be connected, and the first electrode may be connected to the - input terminal of the first circuit.

In operation 803, the electronic device acquires electrodermal activity (EDA) information based on the first signal measured by the biosignal measuring module while the measuring module operates in the set first mode, and the acquired skin conductance Information may be stored in a memory (eg, memory 240 of FIG. 2 ). In the electronic device, the + input of the first circuit as the input current flows through the first path to the second electrode and the first current source connected to the third electrode connected through the first switch (eg, the current source 511 in FIG. 5 ). A voltage value between the terminal and the -input terminal may be measured, and the first circuit may measure a signal obtained by amplifying the measured voltage value as the first signal. The electronic device may continuously measure the first signal while the biosignal measurement module operates in the first mode, and may acquire skin conductivity information based on a change in the continuously measured first signal. The electronic device may measure the first signal based on a body resistance value between the first electrode and the second electrode and an input current applied through the first path.

In operation 805, the electronic device may determine whether a specified event occurs during operation in the first mode. As a result of the check, if the specified event occurs, the electronic device may perform operation 807 , and if the specified event does not occur, the electronic device may continue to perform operation 803 . Here, the designated event may include execution of an application related to the second mode, a designated gesture input, or a designated voice input.

In operation 807, the electronic device may switch the operation mode of the biosignal measuring module to the second mode by using at least one switch included in the biosignal measuring module. The electronic device may change the first switch included in the biosignal measuring module to be off. As the first switch is turned off, the connection between the second electrode and the third electrode may be released. The biosignal measuring module connects the third electrode to the + input terminal of the first circuit (eg, the first circuit 531 in FIG. 5 ) of the biosignal measuring module as the first switch is turned off, The first electrode may be connected to the - input terminal of the first circuit. The electronic device changes the intensity of an input current constantly output from the current circuit included in the biosignal measuring module to a second current intensity, and in the current circuit in a second path formed between the first electrode and the third electrode. An input current of the output second current strength may be applied. Here, in the second path, as the second connection point of the second part of the human body (eg, the connection point of the finger of the other hand) comes into contact with the third pole, the current flows through the low-impedance path, so that in the first circuit, the magnitude of the signal is small. An output signal (eg, the output signal 650 of FIG. 6B ) may be output. In this second mode state, an electrocardiogram signal may be better obtained.

In operation 809, the electronic device generates a biosignal for a specified time in the second mode based on the contact of the third electrode with the second part of the human body while the first electrode and the second electrode are in contact with the first part of the human body Electrocardiogram (ECG) information may be obtained based on the second signal measured by the measurement module, and the obtained electrocardiogram information may be stored in a memory. The electronic device may measure a second signal corresponding to a voltage difference between the first electrode and the third electrode for a specified time in the second mode.

In operation 811 , the electronic device may switch the operation mode of the measurement module to the first mode after a specified time period (eg, the second time period) has elapsed. According to an embodiment, in the electronic device, in a state in which the first electrode 221 and the second electrode 222 are in contact with the first part of the human body (eg, the wrist part or the connection points of the wrist part), the second part of the human body When detecting that the third electrode 223 is not in contact with (eg, a finger of the other hand or a connection point of a finger of the other hand), the operation mode of the measurement module (eg, the measurement module 230 of FIG. 2 ) is changed to the first mode ( EDA measurement mode). For example, the specified time (eg, second time) may mean a time for changing and/or setting registers (eg, analog front end (AFE) setting values) for operating in the first mode. .

In operation 813, the electronic device may determine whether to end the operation. As a result of the confirmation, when it is confirmed that the operation is to be terminated, the electronic device ends the operation method for measuring the biosignal of FIG. 8 , and when it is confirmed that the operation is not terminated, the electronic device can continue to perform operations 803 .

In operation 801 and operation 811 of FIG. 8 , when the electronic device changes the first switch to on, in the first mode, the second circuit included in the biosignal measuring module (eg, the second circuit of FIG. 5 ) Turn on a second switch (eg, the second switch 523 of FIG. 5 ) to connect between the -input terminal of the circuit 533) and the second electrode, and the -input of the second circuit A third switch (eg, the third switch 525 of FIG. 5 ) may be turned off to open a connection between the terminal and the -input terminal of the first circuit.

In operation 807 of FIG. 8 , when the first switch is turned off, the electronic device connects the second circuit between the -input terminal and the second electrode of the second circuit included in the biosignal measuring module in the second mode. The switch may be turned off, and the third switch may be turned on to open a connection between the -input terminal of the second circuit and the -input terminal of the first circuit.

According to an embodiment, the electronic device 201 may display the skin conductivity information or the electrocardiogram information obtained by the operations of FIG. 8 on the display of the electronic device (eg, the display 250 of FIG. 2 ). For example, the electronic device obtains information related to a user's physical condition, information related to a health condition, or additional information based on the obtained skin conductivity information or electrocardiogram information, and obtains the acquired information related to the user's physical condition and health condition Information related to or additional information may be displayed on the display.

According to an embodiment, the electronic device 201 transmits the skin conductivity information or the electrocardiogram information obtained by the operations of FIG. 8 to an external electronic device through a communication module (eg, the communication module 270 of FIG. 2 ). can For example, the electronic device 201 obtains information related to a user's body condition, information related to a health condition, or additional information based on the obtained skin conductivity information or electrocardiogram information, and obtains information related to the user's physical condition , health status-related information or additional information may be transmitted to the external electronic device.

9 is a diagram illustrating an example of an operation of a measurement module of an electronic device according to an exemplary embodiment.

Referring to FIG. 9 , according to an embodiment, the electronic device (eg, the electronic device 201 of FIGS. 2 and 3 ) operates in an operation mode of the measurement module (eg, the measurement module 230 of FIG. 2 ) according to time. may be switched to a second mode (eg, ECG measurement mode) during operation in the first mode (eg, EDA measurement mode) according to a request, and may be operated again in the first mode when the second mode is terminated.

According to an embodiment, as shown in FIG. 9 , the electronic device 201 may operate the measurement module in the first mode during a time period t0 to t1, and registers (eg, analog front end (AFE) setting values) may be changed and/or set. For example, the electronic device 201 sets the strength of the current source (eg, 100 nA) based on information included in the first control signal received from the processor (eg, the processor 210 of FIG. 2 ) or setting values specified in the measurement module. ) or/and the frequency (eg 8Hz) value of the current source, the first switch is on (eg short), the second switch is on (eg close) and the third switch is off It can be set to (off) (eg open).

According to an embodiment, the electronic device 201 may identify that a specified event has occurred at time t1, and may execute an application for the second mode (eg, ECG application). The electronic device 201 may display an execution screen of the executed application on a display (eg, the display 250 of FIG. 2 ). For example, the electronic device 201 displays on the displayed execution screen at least one of ECG measurement preparation, ECG measurement method or ECG measurement in progress guide message, ECG measurement result information (eg, ECG information), or information related to ECG information transmission. one can be displayed.

According to an embodiment, the electronic device 201 changes and/or sets operation mode setting registers (eg, analog front end (AFE) setting values) so that the measurement module operates in the second mode during the time period t1 to t2. can For example, the electronic device 201 determines the strength of the current source (eg, 12 nA) and/or the frequency of the current source (eg, 12 nA) based on information included in the second control signal received from the processor 210 or set values specified in the measurement module. : 250Hz) change and/or set the value, the first switch is off (eg open), the second switch is off (eg open) and the third switch is on (close) ) can be set.

According to an embodiment, the electronic device 201 may wait for the start of measurement of the second signal (eg, ECG signal) for a time period t2 to t3.

According to an embodiment of the present disclosure, the electronic device 201 displays the first electrode 221 and the second electrode 222 in contact with the first part of the human body (eg, the wrist part or the connection points of the wrist part). When it is sensed that the third electrode 223 is in contact with the second part (eg, the finger of the other hand or the connection point of the finger of the other hand), the second signal measurement may be started.

According to an embodiment, the electronic device 201 may operate the measurement module in the second mode (eg, ECG measurement mode) during a time period t3 to t4. The electronic device 201 may change and/or set registers (eg, analog front end (AFE) setting values) to end the second mode at time t4 and operate in the first mode for a time period t4 to t5. . For example, the electronic device 201 determines the strength of the current source (eg, 100 nA) and/or the frequency of the current source (eg, 100 nA) based on information included in the first control signal received from the processor 210 or setting values specified in the measurement module. : 8Hz), the first switch is on (eg, short), the second switch is on (eg: close), and the third switch is off (eg open). can be set. The electronic device 201 may operate the measurement module in the first mode until a specified event occurs again after time t5. The electronic device 201 sets the registers (eg, analog front-end (AFE) setting values) for each of the first and second modes of the measurement module in a lead-on state of the ECG measurement mode and/or of the EDA measurement mode. It can be adjusted for sensitivity.

According to an embodiment, as shown in FIG. 9 , the electronic device (eg, the electronic device 201 of FIG. 2 ) sets second mode (eg, ECG measurement mode) registers (eg, analog front end (AFE)) values) may be adjusted during a time period t1 to t2 for a lead-on state of the second mode. As shown in FIG. 9 , the electronic device 201 sets the registers (eg, analog front end (AFE) setting values) of the first mode (eg, EDA measurement mode) during the period t4 to t5 for the sensitivity of the first mode. (sensitivity) can be adjusted.

Referring to FIG. 10 , the electronic device 201 includes a current source (eg, the current source of FIG. 5 ) among resistors (eg, analog front end (AFE) setting values) of a measurement module (eg, the measurement module 230 of FIG. 2 ). The intensity of the fields 511 and 513) can be adjusted.

In operation 1001 , the electronic device 201 may perform an operation of scanning the current output from the current circuit of the measurement module (eg, the measurement module 230 of FIG. 2 ) in the AFE to adjust the strength of the current source. For example, the scanning operation may refer to an operation in which the electronic device checks whether the output current signal is saturated while gradually decreasing the intensity of the current source inside the AFE from a large one.

In operation 1003 , the electronic device 201 uses the highest current strength among the current values scanned during the scanning time to generate a current having the highest current strength in the current circuit of the measurement module (eg, the

current sources

511 and 513 in FIG. 5 ). can be printed out. For example, the highest current intensity among current values scanned during the scanning time may mean the intensity of a current source in which the output current signal is not initially saturated.

In operation 1005 , the electronic device 201 may determine the amplitude of the measured signal using the highest current strength.

In operation 1007 , the electronic device 201 may determine whether the signal is in a saturation state because the determined amplitude is out of a specified range. For example, the current values of the internal current source of the analog front end (AFE) are specified, and the electronic device can check whether the signal is saturated or not by applying sequentially decreasing the largest value among the specified internal current values. You can measure the signal from the current value.

As a result of checking in operation 1007 , if the signal is not saturated, in operation 1009 , the electronic device 201 may output a current having the highest current strength in the current circuit using the highest current strength.

As a result of checking in operation 1007 , if the signal is saturated, in operation 1011 , the electronic device 201 adjusts the strength of the current output from the current circuit using the next higher current strength, and outputs the adjusted current strength. can do.

Referring to FIG. 11 , in the electronic device (eg, the electronic device 201 of FIG. 2 ) according to an embodiment, as shown in FIG. 9 , a designated event occurs again during a time period t0 to t1 and after time t5. It may operate in the first mode until it is performed, and continuously acquire EDA information (EDA data) by a measurement module (eg, the measurement module 230 of FIG. 2 ). For example, as shown in FIG. 11 , the electronic device 201 continuously acquires EDA information according to time, and displays the acquired information (eg, the display 250 of FIG. 2 ). )) can be displayed or transmitted to an external electronic device. For example, the electronic device 201 may have a memory (eg, the memory 240 of FIG. 2 ) together with currently acquired EDA information (eg, EDA information of Day 1) so as to compare EDA information acquired at the same time for each day. ) stored in the previous EDA information (eg, EDA information of Day 2 to Day 7) can be obtained and displayed. For example, the electronic device 201 may obtain EDA information based on context information such as a user's action or location for each time, and display the acquired EDA information along with the context information for each time on a display. .

According to an embodiment, in an operating method in an electronic device (eg, the electronic device 201 of FIGS. 2 and 3 ), a first electrode and a second electrode among at least three electrodes are in contact with a first part of the human body. Based on this, the measuring module of the electronic device is set to operate in the first mode, and while operating in the first mode, based on the first signal measured by the measuring module, EDA (Electrodermal activity) information of the measurement module using at least one switch included in the measurement module based on the operation of acquiring and storing the acquired skin conductivity information in a memory, and occurrence of a designated event during operation in the first mode. Based on the operation of switching the operation mode to the second mode, the third electrode being in contact with the second part of the human body while the first electrode and the second electrode are in contact with the first part, the second mode acquiring electrocardiogram (ECG) information based on the second signal measured by the measurement module in the It may include an operation of switching to the first mode.

According to an embodiment, the setting of the measurement module of the electronic device to operate in the first mode may include turning on a first switch connected to the second electrode and the third electrode among the at least one switch. changing and applying an input current having a first current strength output from a current circuit included in the biosignal module to a first path between the first electrode and the third electrode connected through the first switch can The method includes an operation of measuring the first signal based on the applied input current and a body resistance value between the first electrode and the second electrode in contact with the first part while operating in the first mode may include more.

According to an embodiment, the setting of the measurement module of the electronic device to operate in the first mode may include, in the first mode, between an input terminal of a second circuit included in the biosignal module and the second electrode. an operation of changing the second switch to on to connect, and an operation of changing the third switch to off to open a connection between one input terminal of the second circuit and one input terminal of the first circuit may include more.

According to an embodiment, the operation of changing the operation mode of the measurement module to the second mode may include turning off a first switch connected to the second electrode and the third electrode among the at least one switch. changing the intensity of an input current constantly output from the current output circuit included in the biosignal module to a second current intensity, and the changed second path formed between the first electrode and the third electrode It may include an operation of applying an input current of two current strengths. The method may further include measuring the second signal corresponding to a voltage between the first electrode in contact with the first portion and a third electrode in contact with the second portion of the human body in the second mode can

According to an embodiment, the switching of the operation mode of the measurement module to the second mode may include a connection between an input terminal of a second circuit included in the biosignal module and the second electrode in the second mode. The operation of changing the second switch to off to do so and the operation of changing the third switch to on to open the connection of one input terminal of the second circuit and one input terminal of the first circuit are further performed may include

According to an embodiment, the method includes displaying the skin conductivity information or the electrocardiogram information on a display of the electronic device, and transmitting the skin conductance information or the electrocardiogram information to an external electronic device through a communication module of the electronic device It may further include an operation of transmitting.

Computer-readable recording media include hard disks, floppy disks, magnetic media (eg, magnetic tape), optical media (eg, compact disc read only memory (CD-ROM), DVD ( digital versatile disc), magneto-optical media (such as floppy disk), hardware devices (such as read only memory (ROM), random access memory (RAM), or flash memory, etc.) ), etc. In addition, the program instructions may include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter, etc. The above-described hardware device includes various It may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

According to various embodiments, in a computer-readable recording medium recording a program to be executed on a computer, when the program is executed by a processor, the processor causes a first electrode and a second electrode among at least three electrodes Setting the measurement module of the electronic device to operate in the first mode based on contact with the first part of the body, based on a first signal measured by the measurement module while operating in the first mode Acquiring skin conductivity information, storing the obtained skin conductivity information in a memory, based on occurrence of a specified event during operation in the first mode, using at least one switch included in the measurement module Based on the operation of switching the operation mode of the measurement module to the second mode, the third electrode being in contact with the second part of the human body while the first electrode and the second electrode are in contact with the first part, the In the second mode, acquiring electrocardiogram information based on a second signal measured by the measurement module, storing the acquired electrocardiogram information in the memory, and after a set time in the second mode elapses, the first It may contain executable commands that act to switch modes.

And, the embodiments disclosed in this document are presented for explanation and understanding of the disclosed and technical content, and do not limit the scope of the technology described in this document. Accordingly, the scope of this document should be construed to include all modifications or various other embodiments based on the technical spirit of this document.

The electronic device according to various embodiments disclosed in this document may have various types of devices. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

The various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but it should be understood to include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise. As used herein, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A , B, or C" each may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish the element from other elements in question, and may refer to elements in other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is "coupled" or "connected" to another (eg, second) component, with or without the terms "functionally" or "communicatively". When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit. can be used as A module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

According to various embodiments of the present document, one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101) may be implemented as software (eg, the program 140) including For example, a processor (eg, processor 120 ) of a device (eg, electronic device 101 ) may call at least one command among one or more commands stored from a storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the called at least one command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not include a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store ^TM ) or on two user devices ( It can be distributed online (eg download or upload), directly between smartphones (eg smartphones). In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, module or program) of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. or one or more other operations may be added.

Claims

In an electronic device,

an electrode module comprising at least three electrodes;

a measurement module comprising at least one switch and a current circuit;

Memory; and

includes a processor;

The processor is

setting the measurement module to operate in a first mode based on contact of a first electrode and a second electrode of the at least three electrodes with a first part of the human body;

Acquire skin conductivity information based on a first signal measured by the measurement module while operating in the first mode, and store the obtained skin conductivity information in the memory;

Based on the occurrence of a designated event during operation in the first mode, the operation mode of the measurement module is switched to a second mode by using the at least one switch,

A second signal measured by the measurement module in the second mode based on the contact of the third electrode with the second portion of the human body while the first electrode and the second electrode are in contact with the first portion to obtain electrocardiogram information based on the

and switch to the first mode after a specified time has elapsed in the second mode.
According to claim 1, wherein the measurement module,

changing a first switch connected to the second electrode and the third electrode among the at least one switch to on so that the measurement module operates in the first mode,

applying an input current having a first current strength output from the current circuit to a first path between the first electrode and the third electrode connected through the first switch;

and measure the first signal based on a human body resistance value between the first electrode and the second electrode in contact with the first portion and the applied input current.
According to claim 1, wherein the measurement module,

When the operation mode of the measurement module is switched to the second mode, the first switch connected to the second electrode and the third electrode among the at least one switch is changed to off,

changing the intensity of the input current constantly output from the current circuit to a second current intensity,

applying an input current of the changed second current strength to a second path formed between the first electrode and the third electrode in the second operation mode;

and measure the second signal corresponding to a voltage between the first electrode in contact with the first portion and a third electrode in contact with the second portion of the human body in the second operation mode.
According to claim 1, wherein the measurement module,

the current circuit,

a first circuit for amplifying a voltage between the first electrode and the second electrode;

a second circuit connected to the second electrode;

a first switch for connecting the second electrode and the third electrode according to an operation mode of the measurement module;

a second switch for connecting one input terminal and the second electrode of the second circuit according to an operation mode of the measurement module; and

and a third switch connecting one input terminal of the second circuit and one input terminal of the first circuit according to an operation mode of the measurement module.
According to claim 4, wherein the measurement module,

a third circuit coupled to the first circuit and converting the output signal of the first circuit into a digital signal;

The measurement module is

In the first mode, according to a first control signal received from the processor, the first switch and the second switch are turned on and the third switch is turned off,

configured to change the first switch and the second switch to off, and to change the third switch to on, according to a second control signal received from the processor in the second mode; Device.
According to claim 1, wherein the current circuit,

A first current source connected to the third electrode and a second current source connected to the first electrode configured to output a current having the same input current strength and to have different current directions,

The specified event includes execution of an application related to the second mode, a specified gesture input, or a specified voice input,

The first electrode and the second electrode are each configured to be disposed on one side of the housing of the electronic device,

and the third electrode is configured to be disposed on the other side of the housing.
The method of claim 1, wherein the processor comprises:

and transmit a first control signal to the measurement module to cause the measurement module to operate in the first mode;

The first control signal includes at least one of a specified current source strength of the first mode, a specified current source frequency value of the first mode, and switch change information of the first mode.
The method of claim 1, wherein the processor comprises:

and when the specified event occurs, transmit a second control signal to the measurement module so that the measurement module operates in the second mode,

The second control signal includes at least one of a specified current source strength of the second mode, a specified current source frequency value of the second mode, or switch change information of the second mode.
According to claim 1, wherein the electronic device,

a display electrically connected to the at least one processor; and

Further comprising a communication module electrically connected to the at least one processor,

The processor is

controlling the display to display the skin conductance information or the electrocardiogram information;

and control the communication module to transmit the skin conductivity information or the electrocardiogram information to an external electronic device.
A method of operation in an electronic device, comprising:

setting a measurement module of the electronic device to operate in a first mode based on contact of a first electrode and a second electrode among the at least three electrodes to a first part of the human body;

obtaining skin conductivity information based on a first signal measured by the measurement module while operating in the first mode, and storing the obtained skin conductivity information in a memory;

converting an operation mode of the measurement module to a second mode using at least one switch included in the measurement module based on occurrence of a designated event during operation in the first mode;

A second signal measured by the measurement module in the second mode based on the contact of the third electrode with the second portion of the human body while the first electrode and the second electrode are in contact with the first portion obtaining electrocardiogram information based on , and storing the acquired electrocardiogram information in the memory; and

and switching to the first mode after a specified time has elapsed in the second mode.
The method of claim 10, wherein the setting of the measurement module of the electronic device to operate in the first mode comprises:

turning on a first switch connected to the second electrode and the third electrode among the at least one switch; and

and applying an input current having a first current strength output from a current circuit included in the biosignal module to a first path between the first electrode and the third electrode connected through the first switch,

The method is

Further comprising the operation of measuring the first signal based on the applied input current and a body resistance value between the first electrode and the second electrode in contact with the first part while operating in the first mode, A method of operation in an electronic device.
The method of claim 11, wherein the setting of the measurement module of the electronic device to operate in the first mode comprises:

changing a second switch to on to be connected between an input terminal of a second circuit included in the biosignal module and the second electrode in the first mode; and

and changing a third switch to off to open a connection between one input terminal of the second circuit and one input terminal of the first circuit.
The method of claim 10, wherein the operation of switching the operation mode of the measurement module to the second mode comprises:

changing a first switch connected to the second electrode and the third electrode among the at least one switch to be off;

changing the intensity of an input current constantly output from the current output circuit included in the biosignal module to a second current intensity; and

and applying an input current of the changed second current strength to a second path formed between the first electrode and the third electrode,

The method is

In the electronic device, the method further comprising: measuring the second signal corresponding to a voltage between the first electrode in contact with the first portion and a third electrode in contact with the second portion of the human body in the second mode how it works.
The method of claim 13, wherein the operation of switching the operation mode of the measurement module to the second mode comprises:

changing a second switch to be off to be connected between an input terminal of a second circuit included in the biosignal module and the second electrode in the second mode; and

and changing a third switch to on to open a connection between one input terminal of the second circuit and one input terminal of the first circuit.
11. The method of claim 10, wherein the method comprises:

displaying the skin conductivity information or the electrocardiogram information on a display of the electronic device; and

The method further comprising transmitting the skin conductivity information or the electrocardiogram information to an external electronic device through a communication module of the electronic device,

The method of claim 1, wherein the designated event includes execution of an application related to the second mode, a designated gesture input, or a designated voice input.