WO2011122208A1 - 携帯端末装置及び生体情報取得方法 - Google Patents
携帯端末装置及び生体情報取得方法 Download PDFInfo
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- WO2011122208A1 WO2011122208A1 PCT/JP2011/054662 JP2011054662W WO2011122208A1 WO 2011122208 A1 WO2011122208 A1 WO 2011122208A1 JP 2011054662 W JP2011054662 W JP 2011054662W WO 2011122208 A1 WO2011122208 A1 WO 2011122208A1
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- voltage
- electrode
- terminal device
- biological information
- voltage value
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- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
- A61B5/0022—Monitoring a patient using a global network, e.g. telephone networks, internet
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- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
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- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
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Definitions
- the present invention relates to a portable terminal device having a function of acquiring biological information and a method for acquiring the biological information.
- the mobile phone described in Patent Document 1 includes a CCD camera unit, functions as a moisture sensor by photographing the surface of the hand with the CCD camera unit in close contact with the palm, and calculating the moisture content from the captured image.
- the mobile phone described in Patent Document 2 functions as a body fat meter by measuring body fat using a plurality of electrodes provided on the mobile phone.
- the present invention has been made in view of such a problem, and a portable terminal device capable of acquiring biometric information of a user without active action by the user for acquiring biometric information, and It aims at providing the biometric information acquisition method.
- the mobile terminal device of the present invention provides: Having a housing provided at least in part with an electrode portion having a surface exposed to the outside, In the housing, An oscillator that outputs an alternating voltage signal; A passive element having one end connected to the oscillator and the other end connected to the electrode; A voltage measuring circuit that is connected to both ends of the passive element and detects a voltage applied to the passive element; An AC voltage signal is output from the oscillator, and the living body is in contact with a surface exposed to the outside of the electrode unit, based on a measured voltage value that is a voltage detected by the voltage measuring circuit.
- a control unit for acquiring biological information It has.
- the biological information acquisition method of the present invention comprises: A biological information acquisition method by a portable terminal device, AC voltage output step for outputting AC voltage from the oscillator, The living body is in contact with the electrode portion having an exposed surface provided in at least a part of the casing of the portable terminal device, and the one end portion is supplied with the AC voltage output by the AC voltage output step.
- a voltage detection step of detecting a voltage applied to a passive element connected to the oscillator and having the other end connected to the electrode unit
- a biological information acquisition step of acquiring biological information of the biological body based on the voltage detected by the voltage detection step; It has.
- a portable terminal device capable of acquiring the user's biometric information and a method for acquiring the biometric information without any active action by the user for acquiring the biometric information.
- FIG. 1 is a schematic exploded perspective view of a mobile phone according to Embodiment 1 of the present invention.
- FIG. 1B is a cross-sectional view taken along line AA in FIG. 1A.
- It is a functional block diagram of the mobile phone according to Embodiment 1 of the present invention. It is a figure which shows an example of the circuit structure of a biometric information detection part. It is a flowchart for demonstrating the biometric information acquisition process which a control part performs.
- FIG. 8B is a cross-sectional view taken along line BB in FIG. 8A. It is a front view of the mobile telephone which concerns on the modification of Embodiment 2 of this invention. It is a rear view of the mobile phone which concerns on the modification of Embodiment 2 of this invention. It is a general
- FIG. 11B is a sectional view taken along the section line CC in FIG. 11A.
- Embodiment 1 of the present invention will be described below with reference to the drawings.
- a mobile phone will be described as an example of a mobile terminal device capable of acquiring user biometric information.
- the present invention is not limited to this, and may be another portable terminal device such as a PDA (Personal Digital Assistant) or a notebook personal computer.
- PDA Personal Digital Assistant
- biological information is information relating to the state of the user's body, and specifically, data such as skin moisture content, body fat percentage, and sweating amount. .
- FIG. 1A and 1B are a front view and a rear view of the mobile phone 100 according to Embodiment 1 of the present invention, and FIG. 2 is an exploded perspective view.
- the mobile phone 100 includes a housing 110 and a circuit board 120 housed in the housing 110.
- the housing 110 accommodates various components of the mobile phone 100 inside, and an outer surface that is a surface opposite to the inner surface inside the housing 110 is exposed to the outside. Moreover, the housing
- the housing 110 is made of a conductive material such as magnesium alloy, SUS, or titanium alloy.
- the front case 111 has an opening for exposing a display panel 151, hard keys 141, a speaker 162, and the like, which will be described later.
- An electronic circuit is formed on the circuit board 120 by mounting electronic components for realizing various functions to be described later of the mobile phone 100.
- the surface of the circuit board 120 on which the electronic circuit is formed and the back surface thereof are referred to as the front surface of the circuit board 120
- the surface of the circuit board 120 orthogonal to the front surface is referred to as the side surface of the circuit board 120.
- the surface of the housing 110 that is parallel to the surface of the circuit board 120 is referred to as the surface of the housing 110
- the surface of the housing 110 that is parallel to the side surface of the circuit board 120 is referred to as the side surface of the housing 110.
- the circuit board 120 is fixedly installed inside the casing 110 by fixing means (not shown). Further, as shown in a cross-sectional view in FIG.
- the contact point 121 on the circuit board 120 is opposed to the inner surface of the housing 110 via the wiring 122 (specifically, the front case 111 faces the surface of the circuit board 120.
- the contact 110a provided on the inner surface is electrically connected. Therefore, the contact 121 on the circuit board 120 and the housing 110 are electrically connected.
- the positions of the contacts 121 and 110a are not limited to the positions shown in FIG.
- the contact 121 may be on the surface of the circuit board 120 facing the rear case 112 or may be on the side surface of the circuit board 120.
- the contact 110a may be on the inner surface of the rear case 112 facing the surface of the circuit board 120, or may be on the inner surface of the front case 111 or the rear case 112.
- FIG. 4 is a block diagram showing the function of each part of the mobile phone 100.
- the mobile phone 100 includes a communication unit 130, an input unit 140, a display unit 150, an audio processing unit 160, a biological information detection unit 170, and a control unit 180.
- these functions are realized by an electronic circuit composed of electronic components and the like mounted on the circuit board 120.
- the communication unit 130 includes, for example, a built-in antenna 131 that transmits or receives radio waves, and an electronic circuit (not shown) that modulates a signal to be transmitted and demodulates a signal to be received.
- Data transmitted or received by the communication unit 130 is, for example, call voice data, image data, e-mail data, and the like.
- the input unit 140 receives an input operation from the user and outputs input data (input information) corresponding to the received input operation to the control unit 180.
- the input unit 140 includes a plurality of hard keys 141 capable of inputting numbers and characters.
- the input unit 140 is connected to the control unit 180, and the input information is stored in a ROM (Read Only Memory) 182 of the control unit 180.
- the input information is, for example, physical information such as the user's height, age, sex, and weight, and is used for acquiring biometric information in a biometric information acquisition process described later.
- the display unit 150 displays characters and / or images based on the character data and / or image data output from the control unit 180.
- the display unit 150 includes, for example, a drive circuit (not shown) and a display panel 151.
- the driving circuit drives the display panel 151 according to the character data and / or image data output from the control unit 180, and causes the display panel 151 to display characters and / or images.
- the display panel 151 is configured by a liquid crystal panel, an organic EL (Electro Luminescence) panel, or the like.
- the display unit 150 displays, for example, characters and / or images representing biological information such as a body fat percentage and a sweating amount acquired through measurement by processing to be described later.
- the voice processing unit 160 performs voice input and encoding during a call and decodes voice data received wirelessly by the communication unit.
- the voice processing unit 160 is a microphone 161 for inputting a user's voice and making it voice data, a speaker 162 for reproducing the voice data as voice, and the voice data that is received and wirelessly encoded. And a processing circuit (not shown) for decoding.
- the speaker 162 outputs a sound for notifying the user of the acquired biological information, for example.
- the biological information detection unit 170 performs measurement for acquiring the biological information of the user.
- FIG. 5 shows an example of a circuit configuration of the biological information detection unit 170.
- the biological information detection unit 170 includes an oscillator 171, a passive element 172, a voltage measurement circuit 173, and a housing 110.
- the oscillator 171 outputs an alternating voltage signal (for example, 1 kHz, 1 V).
- One terminal of the oscillator 171 is electrically connected to the housing 110 and the other terminal is electrically connected to the passive element.
- the passive element 172 includes at least one of a resistor, a capacitor, and a coil, and is electrically connected to the oscillator 171. Further, the passive element 172 is electrically connected to the contact 121 on the circuit board 120 shown in FIG. 3 and is electrically connected to the housing 110 via the contact 121.
- the voltage measurement circuit 173 is electrically connected to both terminals of the passive element 172 and measures the voltage across the passive element 172.
- the voltage measurement circuit 173 is also electrically connected to the control unit 180 and outputs the measured voltage to the control unit 180 as a voltage signal.
- the housing 110 functions as one electrode of the biological information detection unit 170. As shown in FIG. 3, the housing 110 has a contact 110 a on a surface facing the surface of the circuit board 120. The contact 110 a is electrically connected to the contact 121 on the circuit board 120 and the passive element 172 through the wiring 122.
- the voltage measurement circuit 173 outputs the output AC.
- a predetermined voltage value determined by the voltage signal and the impedance of the passive element 172 is detected.
- the voltage signal which shows the detected voltage value is output to the control part 180, and the control part 180 memorize
- the voltage measurement circuit 173 measures the voltage across the passive element 172 and outputs the voltage to the control unit 180 as a voltage signal.
- the control unit 180 acquires the voltage value of this voltage signal by sampling and stores it in the RAM 183. Further, the control unit 180 obtains a measured voltage value as a representative value from the sampled voltage value, and calculates a difference between the measured voltage value and the reference voltage value as a differential voltage value.
- the calculated differential voltage value changes corresponding to the user's bioelectrical impedance.
- the bioelectrical impedance is a value that changes in accordance with a biological state corresponding to biological information such as the body fat percentage and sweating amount of the user. That is, the differential voltage value and the biological information have a predetermined relationship.
- the relationship between the difference voltage values of a plurality of persons having different ages, sexes, weights, heights, and the like and the biological information is obtained as correlation information by a statistical method, and the data is stored in the ROM 182.
- the control unit 180 includes a CPU (Central Processing Unit) 181, ROM (Read Only Memory) 182, RAM (Random Access Memory) 183, an input / output interface (I / F) 184, and the like.
- CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- I / F input / output interface
- the CPU 181 controls various components of the mobile phone 100 and performs various processes.
- the ROM 182 stores a control program for the CPU 181 to control each unit, various application software programs, telephone directory data, e-mail data, user information for calculating biometric information, and the like.
- the RAM 183 is used as a work area when the CPU 181 performs various processes.
- the CPU 181 uses the correlation information stored in the ROM 182 and the user's physical information (gender, age, height, and weight information), for example, by interpolation processing, a differential voltage value for a person who matches the user's physical information And biometric information are generated as calibrated correlation information. Further, the control unit 180 is calculated from the voltage applied to the passive element 172 detected by the voltage measurement circuit 173 when the user is in contact with the housing 110 functioning as an electrode, that is, the measured voltage value. Based on the differential voltage value, a biometric information acquisition process is performed for acquiring the biometric information of the user from the calibrated correlation information. Further, the control unit 180 outputs the acquired biological information to the display unit 150 or the sound processing unit 160.
- the control unit 180 starts the biometric information acquisition process in response to a predetermined operation by the user.
- the predetermined operation by the user is not a user's active operation for acquiring biometric information but an operation performed mainly for the purpose other than acquiring biometric information.
- the control unit 180 performs an operation in which the user selects a button for sending or receiving an e-mail, or a user presses a specific numeric keypad, for example, a numeric keypad of “0 (zero)” when making a call.
- the biometric information acquisition process is started when the operation is performed.
- the user is generally in a state of holding the casing 110, that is, in a state where the user is in contact with the casing 110 that is an electrode of the biological information detection unit 170.
- the information detection unit 170 can perform measurement for acquiring the biological information of the user.
- the reference voltage value is stored in the ROM 182 in advance.
- the control unit 180 outputs an AC voltage signal (for example, 1 kHz, 1 V) from the oscillator 171 in a state where the living body is not in contact.
- the control part 180 memorize
- the control unit 180 starts the oscillator 171 and outputs an AC voltage signal (for example, 1 kHz, 1 V) (step S11).
- an AC voltage signal for example, 1 kHz, 1 V
- control unit 180 starts sampling a voltage signal that changes with time between both ends of the passive element 172 that is measured and output by the voltage measurement circuit 173 (step S12).
- the sampled voltage value is stored in the RAM 183.
- the control unit 180 incorporates a timer and determines whether or not a predetermined time (for example, 3 seconds) has elapsed based on the timer (step S13). When it is determined that the predetermined time has not elapsed (step S13; No), the process waits until it elapses.
- a predetermined time for example, 3 seconds
- control unit 180 acquires a measured voltage value as a representative value from the voltage value stored in the RAM 183 (step S14).
- an arithmetic average value for all the voltage values acquired by sampling for a predetermined time may be obtained and used as the measured voltage value. Then, the arithmetic average value may be obtained by removing the maximum value and the minimum value from the voltage value obtained by sampling for a predetermined time, and this may be used as the measurement voltage value.
- the mode value or the median value among the voltage values obtained by sampling for a predetermined time may be used as the measurement voltage value.
- a voltage value having a predetermined potential difference from the reference voltage value is extracted from the voltage value stored in the RAM 183, and a representative value such as an arithmetic mean value, a mode value, or a median value is extracted from the extracted voltage value. It is good also as this and making this a measurement voltage value.
- the voltage value (reference voltage value) measured in the non-contact state since the measurement voltage value can be set except for, a measurement voltage value with high accuracy can be obtained in terms of voltage measurement in the contact state.
- control unit 180 calculates a difference between the measured voltage value acquired in step S14 and the reference voltage value stored in the ROM 182 as a differential voltage value (step S15).
- control unit 180 acquires biometric information corresponding to the differential voltage value calculated in step S15 from the relationship (correlation information) between the differential voltage value obtained in advance and the biometric information (step S16).
- the control unit 180 can acquire biometric information corresponding to the differential voltage value calculated in step S15 from a function obtained in advance.
- the mobile phone 100 can acquire, for example, a body fat percentage and a sweat amount as biometric information.
- the relationship between the differential voltage value, the body fat rate, and the sweating amount is represented by a body fat rate curve and a sweating amount curve as shown in FIG.
- the control unit 180 when the difference voltage value calculated in the step S15 is V 1, the control unit 180, BF 1 (%) as a body fat percentage, to obtain the S 1 (ml) as the amount of perspiration.
- the correlation information may be expressed in the form of a plurality of differential voltage values and a value of biological information corresponding to each differential voltage value by a statistical method, for example.
- the control unit 180 associates the differential voltage value and the body fat percentage, and stores the differential voltage value and the amount of sweating in the ROM 182 as a database. Then, the body fat percentage and the perspiration amount corresponding to the calculated differential voltage value are acquired from the values stored in the database using, for example, an interpolation method such as linear interpolation or polynomial interpolation.
- the correlation information may be expressed by a plurality of functions and stored in the ROM 182 for each physical information such as sex, age, height and weight, or stored in the ROM 182 as a plurality of the above-mentioned databases for each physical information. May be.
- the biological information corresponding to the differential voltage value can be acquired more easily and more accurately by using the function or database corresponding to the user's physical information.
- control unit 180 outputs the biological information acquired in step S16 to the display unit 150 and the voice processing unit 160 (step S17). Specifically, for example, when BF1 (%) is acquired as the body fat percentage and S1 (ml) is acquired as the amount of sweating in step S16, the control unit 180 outputs the values to the display unit 150 and displays the values on the display panel 151. An image representing the value is displayed. Then, the biological information acquisition process ends.
- the entire housing 110 formed of a conductive material is used as an electrode of the biological information detection unit 170.
- the housing 110 is held by the user and is in contact with the user. Accordingly, the mobile phone 100 can be operated by the user even when the main purpose of the operation is different from the acquisition of biometric information such as transmission, reception, or telephone call of the user. It is possible to acquire the biometric information. That is, the mobile phone 100 can acquire the user's biometric information without any active action by the user to acquire the biometric information.
- the entire housing 110 is formed of a conductive material, the position of the contact 110a may be anywhere on the housing 110. Therefore, the degree of freedom of arrangement of the contact 121 for connecting to the housing 110 on the circuit board 120 is great. As a result, the degree of freedom in designing the circuit board 120 is also increased.
- the mobile phone 100 acquires the biometric information of the user no matter what part of the housing 110 is gripped by the user. be able to.
- the entire housing 110 functions as one electrode, the contact area between the electrode and the user can be increased. Therefore, in a region where the user is in contact with the housing 110, for example, in the palm of the user, for example, when a wet region and a dry region are mixed, a housing having an electrode only in a part of the region
- the measured voltage value can be acquired in a form reflecting a wider range of the palm of the user than 110. In other words, measurement that better reflects the state of the living body can be performed, and as a result, highly accurate biological information can be acquired.
- Embodiment 2 of the present invention will be described below with reference to the drawings.
- the case 110 described in the first embodiment is entirely formed of a conductive material, but the case 110 according to the second embodiment is partially formed of a conductive material.
- the casing 110 which is a characteristic part of the second embodiment will be described in detail.
- symbol as the case of Embodiment 1 is used, and the detailed description is abbreviate
- FIGS. 8A and 8B are a front view and a rear view of the mobile phone 100 according to Embodiment 2 of the present invention
- FIG. 9 is an exploded perspective view
- FIG. 10 is a cross-sectional view taken along a cutting line BB in FIG. 8A.
- the mobile phone 100 includes a housing 110 and a circuit board 120 housed in the housing 110.
- the functional block diagram of the mobile phone according to the second embodiment and the circuit configuration of the biological information detection unit 170 according to the second embodiment are the same as those in the first embodiment (examples shown in FIGS. 3 and 5).
- the housing 110 is formed in a box shape from a front case 113 and a rear case 114.
- the front case 113 is made of a resin material such as ABS (Acrylonitrile, Butadiene, Styrene) resin, polycarbonate, or acrylic.
- the rear case 114 is integrally composed of an electrode portion 114a formed from a flat conductive material and a resin portion 114b formed from a resin material such as ABS resin, polycarbonate, or acrylic.
- the electrode part 114 a is provided so that the surface exposed to the outside is substantially parallel to the surface of the circuit board 120.
- the resin portion 114b surrounds the edge of the electrode portion 114a and forms a side surface portion of the housing 110.
- the resin portion 114 b has a rectangular opening, for example, on a surface substantially parallel to the surface of the circuit board 120, and the cross-sectional shape of the resin portion 114 b is substantially equal to the end of the opening. It has the character-shaped fitting part 114c.
- the substantially U-shaped concave portions of the fitting portions 114c facing each other are arranged in the directions facing each other, and the edge portions of the electrode portions 114a are fitted in the concave portions.
- the rear case 114 is formed by, for example, integrating the electrode portion 114a and the resin portion 114b by insert molding in which the resin portion 114b is formed by injecting resin after the electrode portion 114a is loaded in a mold.
- the rear case 114 may be integrally formed by bonding the electrode portion 114a and the resin portion 114b.
- a contact 110 a that is electrically connected to the electrode 114 a is disposed on the electrode 114 a, and the contact 110 a is electrically connected to the contact 121 on the circuit board 120 through a wiring 122.
- the electrode unit 114a which is a part of the housing 110 functions as one electrode of the biological information detection unit 170. Therefore, the biometric information detection unit 170 performs measurement for acquiring the biometric information of the user who contacts the electrode unit 114a when the user is operating the mobile phone 100, as in the first embodiment. Can do.
- an electrode unit 114a is formed in a part of the housing 110 as an electrode used for measurement for acquiring biological information. Therefore, even when the main purpose of the operation, such as sending / receiving mail or calling, is different from the acquisition of biometric information, the housing 110 is held by the user and the electrode unit 114a is in contact with the user. Therefore, as in the case of the first embodiment, the mobile phone 100 can acquire the user's biometric information without any active action by the user to acquire the biometric information.
- portions other than the electrode portion 114a of the housing 110 are formed of a resin material. That is, since a resin material can also be used as the material of the housing 110, the range of material selection is widened, and the design flexibility of the mobile phone 100 is great.
- the position of the contact 110a on the electrode portion 114a may be anywhere within the plane of the electrode portion 114a that faces the surface of the circuit board 120, that is, the plane inside the electrode portion 114a. Therefore, the degree of freedom in design of the circuit board 120 is large because the degree of freedom of arrangement of the contact 121 for connecting to the electrode 114a on the circuit board 120 is large.
- this invention is not limited to said Embodiment 1 and Embodiment 2, A various deformation
- the contact 121 of the circuit board 120 and the contact 110a of the housing 110 or the electrode part 114a are electrically connected by the wiring 122, but the connection method is limited to this. Absent.
- the contact 121 and the contact 110a are electrically connected by the single wiring 122, but may be electrically connected by a plurality of wirings.
- the wiring connecting the contacts may be a compression spring formed of a conductive material. The compression spring is compressed in a state where the circuit board 120 is housed in the housing 110 and biases the contact 121 and the housing 110 or the electrode portion 114a by an elastic force. This eliminates the need for soldering and fixing the wiring 122 to the contact 121 and the housing 110 or the electrode portion 114a, thereby improving the efficiency of assembling the mobile phone 100.
- the mobile phone 100 is configured from one casing 110 has been described, but may be configured from a plurality of casings.
- at least one housing may have the configuration of the housing of either Embodiment 1 or Embodiment 2 described above.
- the electrode portion 114a is provided over substantially the entire area of the rear case 114 formed in a flat plate shape substantially parallel to the surface of the circuit board 120.
- the electrode portion 114a is provided.
- the place and its size are not limited to this.
- the electrode portion 114 a may be provided on the front case 113, or may be provided on a part of the surface of the rear case 114 or the front case 113 that is substantially parallel to the surface of the circuit board 120.
- the electrode portion 114a may be provided so as to face the side surface (edge portion) of the circuit board 120, that is, on the side surface portion of the housing 110.
- FIGS. 11A, 11B, 12 and 13 show an example of the mobile phone 100 in which the electrode portions 115a and 116a are provided on the side surface of the housing 110.
- FIG. 11A, 11B, 12 and 13 show an example of the mobile phone 100 in which the electrode portions 115a and 116a are provided on the side surface of the housing 110.
- resin portions 115b and 116b formed in a flat plate shape are provided substantially parallel to the surface of the circuit board 120.
- the electrode portions 115 a and 116 a are provided so as to surround the edges of the resin portions 115 b and 116 b, and form side surfaces of the housing 110.
- the electrode portions 115 a and 116 a have an opening in a surface substantially parallel to the surface of the circuit board 120, and the cross-sectional shape is substantially U-shaped at the end of the opening.
- Fitting portions 115c and 116c The substantially U-shaped concave portions of the fitting portions 115c and 116c that face each other are arranged in directions facing each other, and the concave portions of the fitting portion 115c, the edge portion of the resin portion 115b, and the fitting The concave portion of the portion 116c and the edge portion of the resin portion 116b are respectively fitted.
- the contact point 110 a on the electrode portion 116 a is electrically connected to the contact point 121 of the circuit board 120 through the wiring 122.
- the electrode part 115a and the electrode part 116a are mutually contact
- the electrode portions 115a and 116a function in the same manner as the electrode portion 114a of the first embodiment.
- the electrode part 114a is provided, for example, in a region adjacent to the hard key 141 in the side surface part of the housing 110.
- the right hand (or left hand) palm, middle finger, ring finger, and little finger are in contact with the region adjacent to the hard key 141 in the side surface of the housing 110.
- the hard key 141 is often operated using the thumb of the right hand (or left hand). Therefore, the electrode unit 114a is provided in the region, and the control unit 180 starts the above-described biometric information acquisition process, for example, triggered by the user's operation to start creating mail.
- the user is in contact with the electrode part 114a by hand while composing mail, that is, while operating the hard key 141. Therefore, the mobile phone 100 can acquire the user's biometric information without any active action by the user to acquire the biometric information.
- the mobile phone 100 can acquire the biological information of the user while the user is holding the side surface of the housing 110. is there.
- the electrode unit may be composed of a plurality of electrode units that are physically separated from each other.
- the plurality of electrode portions are electrically connected by wiring or the like. Therefore, the plurality of electrode portions function as one electrode because they are in an equipotential state, and have the same effect as the electrode portion 114a in the first embodiment.
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- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
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- Acoustics & Sound (AREA)
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- Epidemiology (AREA)
- General Business, Economics & Management (AREA)
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Abstract
Description
外部に露出した面を有する電極部を、少なくとも一部に備える筐体を有し、
該筐体内に、
交流電圧信号を出力する発振器と、
一端部が前記発振器に接続され、他端部が前記電極部に接続された受動素子と、
前記受動素子の両端部に接続され、前記受動素子にかかる電圧を検出する電圧測定回路と、
前記発振器から交流電圧信号が出力され、且つ前記電極部の外部に露出した面に生体が接触している状態で前記電圧測定回路により検出された電圧である測定電圧値に基づいて、前記生体の生体情報を取得する制御部と、
を備えている。
携帯端末装置による生体情報取得方法であって、
発振器から交流電圧を出力する交流電圧出力ステップと、
前記携帯端末装置の筐体の少なくとも一部に備えられた、外部に露出した面を有する電極部に生体が接触している状態で、前記交流電圧出力ステップにより出力された交流電圧により、一端部が前記発振器と接続され、他端部が前記電極部に接続された受動素子にかかる電圧を検出する電圧検出ステップと、
前記電圧検出ステップにより検出された電圧に基づいて、前記生体の生体情報を取得する生体情報取得ステップと、
を備えている。
以下、本発明の実施形態1について図面を参照して説明する。なお、本発明の実施形態1において、ユーザの生体情報を取得することが可能な携帯端末装置として携帯電話を例に挙げて説明する。しかし、本発明はこれに限定されるものではなく、例えばPDA(Personal Digital Assistant)、ノートパソコン等の他の携帯端末装置であってもよい。
以下、本発明の実施形態2について図面を参照して説明する。上述した実施形態1において説明した筐体110は、その全体が導電性材料から形成されているが、実施形態2に係る筐体110は、その一部が導電性材料から形成されていることを特徴とする。以下に、実施形態2の特徴部分である筐体110について詳細に説明する。なお、実施形態1の場合と同様の機能、構成を有する部分については、実施形態1の場合と同じ符号を用い、その詳細な説明は省略する。
110 筐体
110a 接点
111 フロントケース
112 リアケース
113 フロントケース
114 リアケース
114a 電極部
114b 樹脂部
114c 嵌合部
115 フロントケース
115a 電極部
115b 樹脂部
115c 嵌合部
116 リアケース
116a 電極部
116b 樹脂部
116c 嵌合部
120 回路基板
121 接点
122 配線
130 通信部
131 内蔵アンテナ
140 入力部
141 ハードキー
150 表示部
151 表示パネル
160 音声処理部
161 マイクロホン
162 スピーカ
170 生体情報検出部
171 発振器
172 受動素子
173 電圧測定回路
180 制御部
181 CPU
182 ROM
183 RAM
184 入出力I/F
Claims (10)
- 外部に露出した面を有する電極部を、少なくとも一部に備える筐体を有し、
該筐体内に、
交流電圧信号を出力する発振器と、
一端部が前記発振器に接続され、他端部が前記電極部に接続された受動素子と、
前記受動素子の両端部に接続され、前記受動素子にかかる電圧を検出する電圧測定回路と、
前記発振器から交流電圧信号が出力され、且つ前記電極部の外部に露出した面に生体が接触している状態で前記電圧測定回路により検出された電圧である測定電圧値に基づいて、前記生体の生体情報を取得する制御部と、
を備えることを特徴とする携帯端末装置。 - 前記筐体は、全体が電極部で構成され、該電極部の、外面全体が外部に露出している、
ことを特徴とする請求項1に記載の携帯端末装置。 - 前記電極部は、互いに物理的に分離し、相互に電気的に接続され、それぞれの外面が外部に露出している複数の電極部で構成されている、
ことを特徴とする請求項1に記載の携帯端末装置。 - 前記筐体内に配置され、前記電極部及び前記受動素子のそれぞれと電気的に接続される接点を有する回路基板をさらに備え、
前記電極部は、前記回路基板の表面に平行な、外部に露出した面を有する、
ことを特徴とする請求項1又は3に記載の携帯端末装置。 - 前記筐体内に配置され、前記電極部及び前記受動素子のそれぞれと電気的に接続される接点を有する回路基板をさらに備え、
前記電極部は、前記回路基板の側面に平行な、外部に露出した面を有する、
ことを特徴とする請求項1又は3に記載の携帯端末装置。 - 前記筐体は、樹脂部を備えている、
ことを特徴とする請求項1、3、4又は5に記載の携帯端末装置。 - 記憶部を備え、
該記憶部は、前記発振器から交流電圧信号が出力され、且つ前記電極部の外部に露出した面に生体が接触していない状態で前記電圧測定回路により検出された電圧を基準電圧値として保持し、
前記制御部は、前記測定電圧値と基準電圧値との差を差分電圧値として算定し、前記差分電圧値に基づいて、前記生体情報を取得する、
ことを特徴とする請求項1乃至6のいずれか1項に記載の携帯端末装置。 - 前記記憶部は、前記差分電圧値と生体情報との関係を示す情報である相関情報を保持し、
前記制御部は、前記相関情報と前記差分電圧値とに基づいて、前記生体情報を取得する、
ことを特徴とする請求項7に記載の携帯端末装置。 - 携帯端末装置による生体情報取得方法であって、
発振器から交流電圧を出力する交流電圧出力ステップと、
前記携帯端末装置の筐体の少なくとも一部に備えられた、外部に露出した面を有する電極部に生体が接触している状態で、前記交流電圧出力ステップにより出力された交流電圧により、一端部が前記発振器と接続され、他端部が前記電極部に接続された受動素子にかかる電圧を検出する電圧検出ステップと、
前記電圧検出ステップにより検出された電圧に基づいて、前記生体の生体情報を取得する生体情報取得ステップと、
を備えることを特徴とする生体情報取得方法。 - 前記電圧検出ステップにおいて、前記生体情報の検出以外を主目的とする前記生体による操作を契機として、前記受動素子にかかる電圧を検出する、
ことを特徴とする請求項9に記載の生体情報取得方法。
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JP2012508160A JP5888231B2 (ja) | 2010-03-29 | 2011-03-01 | 携帯端末装置及び生体情報取得方法 |
CN201180016754.0A CN102821683B (zh) | 2010-03-29 | 2011-03-01 | 便携式终端设备和生物信息获取方法 |
US13/636,729 US20130012799A1 (en) | 2010-03-29 | 2011-03-01 | Portable terminal device and biological information acquisition method |
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JP (1) | JP5888231B2 (ja) |
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US12178580B2 (en) | 2019-12-23 | 2024-12-31 | Alimetry Limited | Electrode patch and connection system |
CN113925485B (zh) * | 2021-09-30 | 2024-02-06 | 深圳市晨北科技有限公司 | 体脂率测量方法、装置、电子秤及存储介质 |
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CN102821683B (zh) | 2015-04-22 |
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