JP2014050626A - Information processing unit, method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To measure respiration of a user while the user operates a controller with both hands.SOLUTION: An information processing unit includes: an electrode disposed at a far distance from the operation surface left end of the unit along the left side face as a left current applying electrode; an electrode disposed at a short distance from the operation surface left end of the unit along the left side face as a left impedance measuring electrode; an electrode of two electrodes disposed at the right end, which is disposed at a far distance from the operation surface right end of the unit along the right side face as a right current applying electrode; an electrode thereof disposed at a short distance from the operation surface right end of the unit along the right side face as a right impedance measuring electrode; a current application part for applying a current to the left current applying electrode and the right current applying electrode; and an impedance measuring part for measuring the impedance of user's both hands by the left impedance measuring electrode and the right impedance measuring electrode.

Description

  The present invention relates to an information processing apparatus that measures the impedance of a user who holds a casing constituting a controller.

  Patent Document 1 discloses a biological signal measuring device. FIG. 36 shows a biological signal measuring apparatus described in Patent Document 1.

  36 is a side sectional view of the holding members 200 and 210 in a state where the fingertip insertion portion 320 is closed when the fingertip M is inserted into the fingertip insertion portion 320. FIG. As shown in FIG. 36, the biological signal measurement device measures biological information with the fingertip of the user fitted.

JP 2010-273976 A

  The biological signal measuring device described in Patent Document 1 does not consider the position of the electrode for measuring impedance when the user holds the casing with both hands.

  In the information processing system according to one aspect of the present invention, of the two electrodes arranged at the left end, an electrode arranged at a distance farther from the left end of the operation surface of the device along the left side is used as a left current application electrode. The electrode arranged closer to the left side from the left end of the operation surface of the device is a left impedance measurement electrode, and of the two electrodes arranged at the right end, from the right end of the operation surface of the device to the right side The electrode arranged at a far distance along the right side is used as a right current application electrode, the electrode arranged at a short distance along the right side from the right end of the operation surface of the device is used as a right impedance measurement electrode, and the left current supply is used. Impedance that measures the impedance of both hands of the user with the current application unit that applies current to the application electrode and the right current application electrode, and the left impedance measurement electrode and the right impedance measurement electrode. And a Nsu measurement unit.

  The information processing system according to one aspect of the present invention can measure impedance when the user holds the casing with both hands.

The figure which shows a system external appearance. The figure which shows a controller shape. The figure which shows an electrode position (back surface installation). The figure which shows an electrode position (upper side surface installation). The figure which shows the shape and number of electrodes. The figure which shows the variation of another electrode shape. The figure which shows a system block diagram. The figure which shows the structure of information processing apparatus. The figure which shows the hardware constitutions of a controller. The figure which shows the hardware constitutions of information processing apparatus. The figure which shows the processing flow of a controller. The figure which shows the impedance measurement method. The figure which shows a both-hands impedance measurement mode by the 4-terminal method. The figure which shows the implementation | achievement form of the controller by this Embodiment 1. FIG. The figure which shows the electrode arrangement | positioning of a general user's impedance measurement. The figure which shows the magnitude | size of an electrode. The figure which shows how to allocate the electrode for electric current application, and the electrode for impedance measurement. 1 is a diagram showing a system configuration including an information processing apparatus according to a first embodiment. The figure which shows the whole processing flow in this Embodiment 1. FIG. The figure which shows the example of both-hands impedance data. The figure which shows the basic component of an electrocardiogram. The figure which shows the processing flow of respiration estimation. The figure which shows the example of the envelope between T wave peaks. The figure which shows the example of the respiratory component estimated from both-hands impedance. The figure which shows the variation regarding the position of an electrode. The figure which shows the variation regarding the shape of an electrode. The figure which shows the variation regarding the arrangement | positioning method of an electrode. The figure which shows the subject at the time of arrange | positioning two electrodes at the left and right sides of a controller. The figure which shows the implementation | achievement form of the controller by this Embodiment 2. FIG. The figure which shows the system configuration | structure containing the information processing apparatus by this Embodiment 2. FIG. The figure which shows the whole processing flow in this Embodiment 2. FIG. The figure which shows the processing flow of electrode function allocation. The figure which shows the implementation | achievement form of the controller by this Embodiment 3. FIG. The figure which shows the system configuration | structure containing the information processing apparatus by this Embodiment 3. FIG. 10 shows a display example of the third embodiment. The figure which shows the processing flow of electrode function allocation. The figure which shows the biosignal measuring apparatus of patent document 1. FIG.

  Embodiments of an “information processing system” according to the present invention will be described below with reference to the accompanying drawings.

(Description of system including information processing apparatus)
FIG. 1 shows a usage scene of the information processing system. The information processing system illustrated in FIG. 1 includes a controller 1, an information processing device 2, and a display device 3. The controller 1, the information processing device 2, and the display device 3 are connected by wire or wireless, and transmit / receive information.

  The controller 1 includes input means for inputting operation information for the user to operate the information processing apparatus. An operation for realizing a desired process is input.

The information processing apparatus 2 receives an operation input from the controller 1 and performs a predetermined process.
In this specification, “predetermined processing” is a general term for applications such as games, health management, learning, and the like that are implemented on a home computer.

  The display device 3 displays the processing result of the information processing device 2 on the display device 3. The display device can display image information or acoustic information.

(Controller shape)
2A and 2B show an example of the shape of the controller 1. FIG. In this specification, the controller 1 means that the user operates with both hands. An example of the appearance of the controller 1 is a stick type controller 1A in FIG. 2A and a pad type controller 1B in FIG. 2B.

  The stick type controller A1 has a horizontally long stick shape. The user holds both ends and operates the operation button 41 with the left thumb and the operation button 42 with the right thumb. The operation button 41 is a type that can input in the up, down, left, and right directions, and the operation button 42 is an example that includes two buttons that can perform two controls.

  The pad type controller 1B has a plate-like pad shape. The user holds both sides and operates the operation button 41 with the left thumb and the operation button 42 with the right thumb. A display unit 47 is provided at the center of the pad, and the operation status and the processing result of the application can be displayed.

(Definition of face)
The name of the surface in this specification is defined using FIG.

  The controller 1 has an operation surface 43, a left side surface (not shown), a right side surface 44, an upper side surface 45, a lower side surface (not shown), and a back surface 46.

  The operation surface 43 shown in FIGS. 2A and 2B is a surface on which the operation button 41 and the operation button 42 are installed.

  Each of the upper, lower, left and right side surfaces facing the operation surface 43 is a left side surface (not shown), a right side surface 44, an upper side surface 45, and a lower side surface (not shown). A surface opposite to the operation surface 43 is a back surface 46.

  As for the concept and name of the operation surface, a common name can be applied to the stick type controller 1A and the pad type controller 1B.

  The controller 1 does not have the operation button 41 and the operation button 42, and when the operation button is displayed on the display unit 47, the surface having the display unit 47 is the operation surface 43. Alternatively, only the display unit 47 may be used as the operation surface 43.

  When the operation surface 43, the left side surface (not shown), the right side surface 44, the upper side surface 45, the lower side surface (not shown), and the back surface 46 are formed as one surface, the left side surface ( The right side surface 44, the upper side surface 45, the lower side surface (not shown), and the back surface 46 mean portions defined by the positional relationship with the operation surface 43.

(About electrode position)
Next, the position of the biological signal measurement electrode installed in the controller 1 will be described. FIG. 3 shows an example in which a biological signal measurement electrode is installed on the back surface 46 of the controller 1.

  The controller 1 is provided with at least a plurality of electrodes for measuring biological signals. The biological signal means a potential difference between a plurality of positions where the user contacts the controller. An example of the biological signal is a potential difference between any finger of the right hand and any finger of the left hand, and includes a biological signal derived from an electrocardiogram.

  The user holds the stick-type controller 1A with both hands and operates the operation buttons 41 and 42 with the thumb. At this time, it is necessary to counter the force of pressing the operation buttons 41 and 42 of the thumb by supporting the back surface 46 with the index finger or the middle finger. To support the back surface 46, the user's index finger or middle finger contacts the back surface 46.

  When the user holds the controller 1A, the controller 1A has an electrode at a position where the user's finger contacts the controller 1A.

  For example, the back surface 46 has a plurality of electrodes in a predetermined range including a position that opposes the position of the operation buttons 41 and 42 on the operation surface 43. An example of the predetermined range is a range in which the movable range of the user's finger is a radius with reference to a position that opposes the position of the operation buttons 41 and 42.

  The controller 1A illustrated in FIG. 3A includes a left hand electrode 48 at a portion where the left hand finger contacts and a right hand electrode 49 at a portion where the right hand finger contacts.

  The user also supports the back surface 46 with his / her finger so that the pad-type controller 1B shown in FIG. In order to support the back surface 46, a left-hand electrode 48 and a right-hand electrode 49 are installed at a position where the user contacts the back surface 46. By installing the electrode at this position, it is possible to perform continuous biosignal measurement even during operation.

  FIG. 4 shows an example in which biological signal measurement electrodes are installed on the upper side surface 45 of the controller 1. When the user holds the stick-type controller 1 </ b> A with both hands, it is also conceivable to place the index finger on the upper side 45 and the middle finger, ring finger, and little finger on the back surface 46.

  In this case, the user's index finger is always placed on the upper surface 45 as well as supporting the back surface 46 that opposes the force of pressing the operation buttons 41 and 42. The controller 1A may include a left hand electrode 48 and a right hand electrode 49 on the upper side surface 45 where the index finger is placed. Also in the pad type controller 1B, since it is assumed that the index finger is placed on the upper side surface 45, the controller 1B may have the left hand electrode 48 and the right hand electrode 49 on the upper side surface.

(Electrode shape and number)
5A to 5D show examples of electrode shapes. The material of the electrode is composed of a conductive substance. An example of the material of the electrode is gold or silver. A preferred electrode material is silver-silver chloride. This is because silver chloride is considered to have little polarization when in contact with a living body.

  As for the shape and number, various shapes other than the round shape 51 of FIG. 5A similar to the electrode used for medical purposes are assumed depending on the application. For example, the number of electrodes with which one hand contacts is not necessarily one. Two semi-circular electrodes 52a and 52b as shown in FIG. 5B, two concentric electrodes 53a and 53b as shown in FIG. 5C, and three electrodes as shown in FIG. 5D. 54a, 54b, and 54c. By preparing two or more electrodes for one hand, it is possible to estimate the contact state of the finger and the position where the finger is placed from the signal acquisition state of each electrode.

  Moreover, as shown in FIG. 6, the electrode shape is not limited to a round shape. For example, as shown in FIG. 6 (a), electrodes may be installed in a wide range of parts that are likely to come into contact with the hand so that contact is always maintained. By using a strip-shaped electrode (Fig. 6 (b)) connected to the lower surface or a plurality of strip-shaped electrodes (Fig. 6 (c)) Signal measurement becomes possible.

(System Configuration)
FIG. 7 shows a system configuration of the information processing system 100. The controller 1 includes an operation input device 1a and a biological signal measuring device 1b.

  The controller 1 measures the user's operation input and the user's biological signal at the time of operation. Information including the measured biological signal is transmitted to the information processing apparatus 2.

  The information processing device 2 receives input from the operation input device 1 a and the biological signal measurement device 1 b, performs predetermined processing, and outputs a processing result to the display unit 3. The controller 1 and the information processing apparatus 2 are connected by radio or wire.

  FIG. 8 shows the configuration of the controller 1 and the information processing apparatus 2. A case where the controller 1 and the information processing apparatus 2 are connected wirelessly will be described.

  The operation input device 1 a included in the controller 1 includes an operation input unit 11 and an operation signal output unit 12.

  The operation input unit 11 acquires and determines operation signals input from the operation buttons 41 and 42. The acquired operation information is transmitted from the operation signal output unit 12 to the information processing apparatus 2.

  The biological signal measurement device 1b included in the controller 1 includes an electrode unit 13, a biological signal amplification unit 14, and a biological signal output unit 15.

  The electrode unit 13 is composed of a plurality of electrodes. For example, the plurality of electrodes are arranged at a position where the user's right hand contacts the controller 1 and a position where the user's left hand contacts the controller 1.

  The biological signal amplifier 14 amplifies a biological signal corresponding to a potential difference between the plurality of electrodes. For example, the biological signal amplifier 14 amplifies the potential difference between the right hand and the left hand. The amplified signal is converted into a digital signal by the A / D converter, and information on the biological signal is transmitted from the biological signal output unit to the information processing apparatus 2. When the biological signal amplifier 14 can measure a biological signal having a magnitude greater than or equal to a predetermined potential, the biological signal amplifier 14 does not need to amplify the biological signal, and may only measure the potentials of a plurality of electrodes. Therefore, hereinafter, the biological signal amplification unit 14 is also referred to as a biological signal measurement unit.

  In the information processing apparatus 2, the operation input information is received by the operation signal acquisition unit 21, and the biological signal is received by the biological signal acquisition unit 22, thereby receiving information from the controller 1.

  In many cases, the biological signal cannot be used as information with a recorded source signal, and the biological signal processing unit 23 performs processing for extracting meaningful information from the source signal. For example, it corresponds to an operation such as obtaining heart rate information by detecting a peak from a time-series change of a potential change signal between both hands.

  In the application processing unit 24, central processing of the information processing apparatus 2 is performed. Examples of application processing are game progress in a game application, recording / data management / display in a health management application, question / score / result display in a learning application, and the like. The application process is realized by receiving an input from the controller 1 and performing a predetermined process.

  In order to feed back the result processed by the application processing unit 24 to the user, the display information output unit 25 and the acoustic information output unit 26 output a visual or auditory signal. This output signal is sent to the display unit 3.

  The display unit 3 displays signals output from the display information output unit 25 and the acoustic information output unit 26. Thereby, a signal is presented to the user. An example of the display unit 3 is a television, a display, or a speaker.

(Hardware configuration)
FIG. 9 shows a hardware configuration of the controller 1. The controller 1 includes a measurement electrode 63a, an operation input unit 11 including an operation unit 61 and a control signal conversion unit 62, a reference electrode 63b, a ground 63c, a biological amplifier 64, and an AD conversion unit 65. A biometric measuring unit 12, a signal processing unit 66 composed of a CPU 101, a RAM 102, a program 103 and a ROM 104, a transmission unit composed of a transmission circuit 67 and an antenna 68. These are connected to each other by a bus 105 and can exchange data with each other. In addition, power is supplied from the battery unit 69 to each circuit.

  The button pressing information of the operation unit 61 is converted by the control signal conversion unit 62 and sent to the CPU 101 via the bus.

  A measurement electrode 63a, a reference electrode 63b, and a ground 63c are connected to the biological amplifier 64, and these electrodes are installed at predetermined locations of the controller. The potential difference between the measurement electrode 63a and the reference electrode 63b is amplified by the biological amplifier 64, converted from an analog biological signal to a digital signal by the AD converter 65, and sent to the CPU 101 via the bus as a biological signal that can be processed and transmitted. Sent.

  The CPU 101 executes a computer program 103 stored in the memory 102. The computer program 103 describes a processing procedure shown in a flowchart to be described later. The controller converts the operation signal and the biological signal in accordance with the computer program 103 and transmits them from the antenna 68 via the transmission circuit 67. The program 103 may be stored in the ROM 104.

  The signal processing unit 66, the control signal conversion unit 62, the transmission circuit 67, the biological amplifier 64, and the AD conversion unit 65 may be realized as hardware such as a DSP in which a computer program is incorporated in one semiconductor circuit. When one semiconductor circuit is used, an effect of reducing power consumption can be obtained.

FIG. 10 shows a hardware configuration of the information processing apparatus 2. The information processing apparatus 2 includes a receiving unit including an antenna 71 and a receiving circuit 72, a signal processing unit 73 including a CPU 111, a RAM 112, a program 113, and a ROM 114, an image control unit 74, a display information output unit 75, and an acoustic control unit 76. And an acoustic information output unit 77. These are connected to each other by a bus 115 and can exchange data with each other. Each circuit is supplied with power from the power supply unit 78.
Operation information and biological information from the controller 1 are received by the receiving circuit 72 via the antenna 71 and sent to the CPU 111 via the bus 115.

  The CPU 111 executes a computer program 113 stored in the memory 112. The computer program 113 describes a processing procedure shown in a flowchart described later. The information processing apparatus converts the operation signal and the biological signal according to the computer program 113, performs a process for executing a predetermined application, and creates a signal for feedback to the user by an image or sound. The program 113 may be stored in the ROM 114.

  The image feedback signal generated by the signal processing unit 73 is output from the display information output unit 75 via the image control unit 74, and the acoustic feedback is output from the acoustic information output 77 via the acoustic control unit 76. The

  The signal processing unit 73, the reception circuit 72, the image control unit 74, and the sound control unit 76 may be realized as hardware such as a DSP in which a computer program is incorporated in one semiconductor circuit. When one semiconductor circuit is used, an effect of reducing power consumption can be obtained.

(Outline of processing flow)
FIG. 11 shows a processing flow of the controller 1 and the information processing apparatus 2. Steps S11 to S14 show the internal processing of the controller 1, and steps S21 to S25 show the processing of the information processing device 2.

<Step S11>
The operation input unit 11 receives an operation input. Specifically, it detects which operation button is pressed at the reception timing. An example of reception timing is when an operation button is pressed.

<Step S12>
The operation signal output unit 12 outputs an operation signal of the operation input received by the operation input unit 11.

<Step S13>
The biological signal amplification unit 14 measures a biological signal corresponding to the potential difference between the plurality of electrode units 13. For example, the potential difference between the right hand and the left hand in contact with is measured. Further, the biological signal amplifier 14 amplifies the measured biological signal.

<Step S14>
A biological signal is transmitted from the biological signal output unit 15.

  Note that steps S11 and S12 and steps S13 and S14 may be performed in parallel, and it is not necessary to perform all of the processes from step S11 to step S14 in order.

<Step S21>
The operation signal acquisition unit 21 receives an operation signal from the operation signal output unit 12.

<Step S22>
The biological signal acquisition unit 22 receives the biological signal from the biological signal output unit 15.

<Step S23>
The biological signal received by the biological signal acquisition unit 22 is processed by the biological signal processing unit 23 to extract meaningful information.

<Step S24>
The application processing unit 24 receives the operation information from the operation signal acquisition unit 21 and the biological information from the biological signal processing unit 23, and performs a predetermined process for executing the current application.

<Step S25>
In order to feed back the processing result of the application processing unit 24 to the user, the display information output unit 25 outputs video information, and the acoustic information output unit 26 outputs acoustic information.

  Although not described in the processing flow shown in FIG. 11, the display unit 3 displays information output from the information processing apparatus.

  The application processing unit 24 does not need to perform processing using any of the operation information from the operation signal acquisition unit 21 and the biological information from the biological signal processing unit 23, and performs processing using only the biological signal. May be. In that case, step S21 for receiving the operation signal can be omitted.

(Bioelectrical impedance measurement)
Examples of measuring bioimpedance include the two-terminal method and the four-terminal method.

  In the two-terminal method, bioimpedance is measured using two electrodes adhered to the user's skin. For example, a potential difference between the two electrodes is measured while a current is passed through the two electrodes.

  In the four-terminal method, bioimpedance is measured using four electrodes adhered to the user's skin. For example, a current is passed through two electrodes, and a potential difference between two points in a current path flowing in the body is measured through the two electrodes. As a measurement condition of the four-terminal method, a point between two points where a potential difference is measured must be in a current path flowing in the body.

  FIG. 12 shows an outline of the two-terminal method and the four-terminal method. Z represents the impedance of the object to be measured, and R1 to R4 represent the contact impedance between the electrode and the skin. In the two-terminal method, Z + R1 + R2 is measured. On the other hand, in the 4-terminal method, only Z is measured. Therefore, when measuring the bioelectrical impedance, the 4-terminal method is used when it is desired to ignore the contact impedance between the electrode and the skin.

 The present inventors adopted bioimpedance measurement using the four-terminal method because the contact impedance between the electrode and the skin varies greatly depending on the environment. For example, an example of contact impedance when the user holds the stick type controller of FIG. 3A or the pad type controller of FIG. 3B will be described. For example, there is a possibility that the contact impedance between the user's skin and the electrode of the controller changes due to the gripping force being different for each user or the user sweating. Therefore, the present inventors have found an invention that assumes that bioimpedance is measured using a four-terminal method.

  FIG. 13 shows how the impedance between both hands is measured by the four-terminal method. The change in impedance between both hands is due to heart activity (heartbeat) and lung activity (breathing).

  Regarding the impedance change due to the heart activity (heartbeat), when the heart performs mechanical activities such as contraction and expansion, the cardiomyocytes are electrically excited (depolarized) or reverted (repolarized). This electrical change of the cardiomyocytes also changes the impedance.

  As for impedance change due to lung activity (breathing), air is taken into the alveoli during inhalation, and it becomes difficult for current to flow, so the impedance increases. On the other hand, since air is discharged during exhalation and current flows easily, the impedance is lowered. That is, a change due to heartbeat and a change due to respiration appear in the measured impedance between both hands.

  When the impedance between both hands is measured by the four-terminal method using the controller 1, two electrodes are bonded to the left hand and the right hand, respectively. In order to satisfy the measurement condition of the four-terminal method, it is necessary to pass a current through the electrode closer to the fingertip of the two electrodes and measure the potential difference with the electrode closer to the trunk. Hereinafter, the impedance between both hands is referred to as two-hand impedance.

(Embodiment 1)
(Overview)
As shown in FIG. 1, the information processing system according to the first embodiment includes a controller 1, an information processing device 2, and a display device 3.

  For example, the information processing system measures the user's breathing and the like when the user operates the operation buttons 41 and 42 on the operation surface 43 of the controller 1 shown in FIGS. 2A and 2B with both hands. To do. When the operation surface 43 is a touch panel, the operation buttons 41 and 42 include display of operation inputs displayed on the touch panel.

  In order to measure a user's respiration, the impedance of both hands is measured using the controller 1, and a respiratory component is estimated from the impedance of both hands. To measure the impedance of both hands, the 4-terminal method is used. Therefore, when the user holds the controller 1, the controller 1 has electrodes so that two electrodes are in contact with each of the left hand and the right hand.

(Outline)
As shown in FIG. 2, the housing forming the controller 1 has at least four electrodes on the left side (not shown), the right side 44, the upper side 45, and the lower side (not shown). Have.

  14A (a), (b), and (c) show the controller 1 as viewed from the lower side 45A, the operation surface 43, and the back surface 46 when the user holds both hands. The operation buttons 41 and 42 are arrange | positioned at the operation surface 43, and the case where a user operates a button with a thumb, for example is shown. At this time, the user supports the upper side surface 45 with the index finger and supports the back surface 46 with the middle finger and the ring finger. Electrodes 131 and 132 are arranged at the portion in contact with the tip of the middle finger of the left hand. Electrodes 133 and 134 are arranged in a portion in contact with the tip of the middle finger of the right hand. An impedance measurement module 104 is embedded in the controller 1, and the electrodes 131, 132, 133, and 134 are connected to the impedance measurement module 104.

(Electrode size)
FIG. 15 shows an example of the size of the electrode. For example, the size of the electrode is determined based on the range in which the user contacts the controller 1.

  In the case where an adult male has only the tip of the middle finger in contact with the back surface 46, the range in which the user is in contact with the controller 1 is approximately 14 mm in diameter. The index finger and ring finger of an adult male are in contact with the controller 1 in the same range as the middle finger. An electrode corresponding to an adult woman or a child is smaller by a predetermined amount than an electrode corresponding to an adult man.

  In order to measure the impedance of the user, a plurality of electrodes are arranged in the contact range. An example of the controller 1 shown in FIG. 15 arranges two semicircular electrodes in the contact range. A gap of about 1 mm is sandwiched between the two electrodes so as to increase the contact range with the electrodes. The size of the semicircular electrode is 6.5 mm × 14 mm. The shape of the electrode may not be semicircular but may be polygonal.

(Regulation of electrode for current application and electrode for impedance measurement)
The controller 1 of this embodiment measures a user's impedance using a 4-terminal method. Current is passed using two electrodes among at least four electrodes of the controller 1, and the potential difference is measured using the two electrodes. That is, the two electrodes are current application electrodes, and the two electrodes are impedance measurement electrodes. In order to satisfy the measurement conditions of the four-terminal method, it is necessary to assign four electrodes to the current application electrode and the impedance measurement electrode.

  The two current application electrodes form a circuit that is electrically connected via a wiring and a user. The two impedance measurement electrodes form a circuit that is electrically connected via the wiring and the user.

  The electrode for current application and the electrode for impedance measurement are used as a pair of electrode groups, and at least a plurality of electrode groups are provided. The electrode 131 and the electrode 132 shown in FIG. 14A are a first electrode group, and the electrode 133 and the electrode 134 are a second electrode group. For example, the first electrode group is disposed on the left side with the center line of the controller 1 interposed therebetween, and the second electrode group is disposed on the left side with the center line of the controller 1 interposed therebetween. The center line of the controller 1 may be a straight line connecting the controller 1 including the center of the housing 1 of the controller 1 and the display device 3 when the user holds the controller 1 and operates the information processing apparatus 2. .

  Further, the right side and the left side described above change depending on the orientation of the controller 1. Even if the orientation of the controller 1 changes, it is only necessary to arrange electrodes having a pair of current application electrodes and impedance measurement electrodes on the right and left sides of the controller 1, respectively.

  In addition, the electrode arrange | positioned at the right end demonstrated below is an electrode arrange | positioned on the housing | casing of the right side on both sides of the center line of the controller 1, and the electrode arrange | positioned at the left end is the center line of the controller 1 It includes an electrode arranged in the case on the left side.

  Assuming that the user has both ends of the controller with both hands, the assignment method is defined from the position of the electrode on the controller 1. When assigning, the two electrodes on the controller 1 are compared, and the concept of “near” and “far” is used for the comparison result. The concept of “near” and “far” is defined as follows.

  “Near” means that the distance from the operation surface left end 431 / operation surface right end 432 to the electrode position along the left side 44A / right side 44 is small when comparing the positions of the two electrodes. . “Far” means that the distance from the operation surface left end 431 / operation surface right end 432 to the electrode position along the left side 44A / right side 44 is large when comparing the positions of the two electrodes. .

  FIG. 16 shows how to assign a current application electrode and an impedance measurement electrode. For the electrodes 131 and 132 on the left side of the controller 1, the distances from the left end 431 of the operation surface to the electrodes along the left side surface 44A are obtained. The electrode with the longer distance (electrode 132) is assigned as the left current application electrode, and the electrode with the shorter distance (electrode 131) is assigned as the left impedance measurement electrode. Similarly, for the electrodes 133 and 134 on the right side of the controller 1, the distances from the right end 432 of the operation surface to the electrodes along the right side surface 44 are obtained. The electrode with the longer distance (electrode 134) is assigned as the right current application electrode, and the electrode with the shorter distance (electrode 133) is assigned as the right impedance measurement electrode.

  That is, as described with reference to FIG. 13, the controller 1 arranges the current application electrode at a position in contact with a portion near the user's fingertip, and arranges the impedance measurement electrode at a position in contact with a portion far from the user's fingertip.

  In the example shown in FIG. 16, the distance is shown in a cross-sectional view, but it may be an actual distance from each electrode to the position of the operation surface left end 431 or the operation surface right end 432.

  In the example of FIG. 16, the position of the operation surface left end 431 or the operation surface right end 432 is used as a reference, but the position where the user contacts the controller 1 when the user holds the controller 1 may be used as a reference. For example, when the operation surface 43 is viewed from above, a position corresponding to an intersection of a straight line connecting the operation button 41 and the operation button 42 and a line defining the outer shape of the operation surface 43 may be set as an end. In addition, when the controller 1 has the part which prescribes | regulates the shape which a user can hold | grip easily, it is good also considering the part as an edge part.

(Knowledge of the present inventors)
FIG. 14B shows an electrode arrangement for general user impedance measurement. The electrodes 100 and 1003 are used as current application electrodes, and the electrodes 1001 and 1002 are used as impedance measurement electrodes. As shown in FIG. 14B, the distance between the electrode 1000 for current application and the electrode 1003 is larger than the distance between the electrode 1001 for impedance measurement and the electrode 1002. This is the positional relationship between the current application electrode and the impedance measurement electrode when the electrode is placed on the user and impedance is measured.

  On the other hand, the present inventors examined arranging an electrode in the housing of the controller 1 and measuring the impedance of the user in contact with the electrode. In order to operate the information processing apparatus 2, the current application electrode and the impedance measurement electrode are defined based on intensive studies on the state in which the user holds the controller 1.

  Unlike the electrode arrangement shown in FIG. 14B, the controller 1 of the present embodiment is configured such that the distance between the left impedance measurement electrode 131 and the right impedance measurement electrode 133 is the left current application electrode 132 and the right current application electrode 134. Is less than the distance between. This is because when the controller 1 has the operation surface 43 for operating the information processing apparatus 2, the arrangement is a position assuming a state where the user holds the controller 1 with both hands.

(System configuration including information processing device)
FIG. 17 shows the configuration of the information processing system according to the first embodiment. The information processing system includes a left impedance measurement electrode 131, a left current application electrode 132, a right current application electrode 134, a right impedance measurement electrode 133, a current application unit 16, an impedance measurement unit 141, and a respiration. An estimation unit 231 and a respiratory output unit 232 are provided.

  8 corresponds to the left impedance measurement electrode 131, the left current application electrode 132, the right current application electrode 134, and the right impedance measurement electrode 133. The biological signal amplifier 14 corresponds to the current application unit 16 and the impedance measurement unit 141. The biological signal amplification unit 14 shown in the present embodiment may measure at least the impedance of the user. The biological signal processing unit 15 corresponds to a respiration estimation unit 231 and a respiration output unit 232.

  For example, in the first embodiment, the operation input device 1 shown in FIG. 8 includes a left impedance measurement electrode 131, a left current application electrode 132, a right current application electrode 134, and a right impedance measurement electrode 133. The information processing apparatus 2 shown in FIG. 8 includes a respiration estimation unit 231 and a respiration output unit 232.

  The controller 1 according to the first embodiment includes at least the left impedance measurement electrode 131, the left current application electrode 132, the right current application electrode 134, the right impedance measurement electrode 133, and the current application unit 16. The impedance measuring unit 141 may be provided. The impedance measuring unit 141 transmits the measured impedance information to an external device such as the information processing apparatus 2.

(Overall processing flow)
FIG. 18 shows a processing flow related to the estimation of the respiratory component of the information processing system according to the first embodiment.

<Step S131>
The current application unit 16 applies a current to the left current application electrode 132 and the right current application electrode 134.

<Step S132>
The impedance measuring unit 141 measures the impedance of both hands with the left impedance measuring electrode 131 and the right impedance measuring electrode 133. The both-hand impedance is a value obtained by dividing the potential difference measured by the left impedance measurement electrode and the right impedance measurement electrode by the current value applied by the current application unit 16.

<Step S231>
The respiration estimation unit 231 estimates a respiration component from the impedance of both hands. Details of respiratory estimation from both-handed impedance are described in the section “Respiration Estimation Processing Flow” below.

<Step S232>
The respiration output unit 232 outputs a respiration component. As an output form, a waveform of a respiratory component may be displayed. FIG. 23 shows an example of a respiratory component estimated from the impedance of both hands. In FIG. 23, t1 to t6 are the timings of inhaling the breath recorded by the stopwatch. In a time interval between two breaths, the estimated respiratory component waveform first rises and then falls. This waveform represents that the user exhales after exhaling. In addition, there is only one waveform peak for each time interval between two breaths. This represents that the respiration estimation unit 231 correctly estimates the respiration component of the user.

  Note that the respiration output unit 232 may calculate and output the respiration rate and respiration rate from the respiration component.

  For example, the controller 1 performs the processing of the flow of S131 and S132, and the information processing apparatus 2 performs the processing of the flow of S231 and S232. In that case, the controller 1 performs the processes of S131 and S132, and transmits the measured impedance to the information processing apparatus 2.

(Respiration estimation processing flow)
FIG. 19 shows an example of two-handed impedance data. An impedance change due to electrocardiogram appears in the measured impedance data. The impedance change due to the electrocardiogram has characteristics of P wave, Q wave, R wave, S wave, and T wave (see FIG. 20).

  FIG. 21 shows a processing flow of respiratory estimation in the first embodiment.

<Step S2311>
The respiration estimation unit 231 detects a T wave of an electrocardiographic component from both-hand impedance data. For example, a T wave is detected by detecting a peak of a potential included in a range of a predetermined potential that is held in advance. Alternatively, a waveform having a high similarity with a waveform template held in advance is detected as a T wave.

<Step S2312>
The respiration estimation unit 231 creates an envelope between T wave peaks. FIG. 22 shows an example of an envelope between T wave peaks. This envelope is used as a respiratory component.

  As another method for estimating the respiratory component from the impedance data, Yoshifumi Yasuda, et. al. “Modified theoretic impedance plethysmography to monitor sleep apnea syndrome”, Sleep Medicine, Vol. 6, pp. You may use the method described in 215-224 (2005).

(Explanation of effect)
With such a configuration and processing, the user's respiration can be measured from the impedance of both hands while the user operates the operation buttons 41 and 42 of the controller 1.

  In addition to the controller implementation shown in FIG. 14, variations on the position, shape, and arrangement of electrodes on the controller are conceivable.

  In addition, what is necessary is just to arrange | position an electrode in the part of the controller 1 which a user's hand contacts about the position of an electrode. FIG. 24 shows an example of a variation regarding the position of the electrode when the index finger is supporting the upper surface 45, the middle finger and the ring finger are supporting the back surface 46, and the palm is supporting the left side surface 44A and the right side surface 44. 24A and 24B are views of the controller 1 as seen from the lower side surface 45A when the user holds it with both hands. FIG. 24C is a diagram of the controller 1 viewed from the operation surface 43 when the user holds with both hands. FIG. 24A shows an example in which one electrode is disposed on the left side of the back surface 46, one electrode is disposed on the left side surface 44A, one electrode is disposed on the right side of the back surface 46, and one electrode is disposed on the right side surface 44. FIG. 24B shows an example in which two electrodes are arranged on the left side 44 </ b> A and two electrodes are arranged on the right side 44. FIG. 24C shows an example in which two electrodes are arranged on the left side of the upper side surface 45 and two electrodes are arranged on the right side of the upper side surface 45. As a method of dividing the current application electrode and the impedance measurement electrode, the method described in the above-mentioned “regulation of the current application electrode and the impedance measurement electrode” is used. In the case of the electrode arrangement shown in FIG. 24C, when assigning the current application electrode and the impedance measurement electrode, the distance from the operation surface left end electrode 431 to the position of the electrode projected on the back surface 46 along the left side surface 44A. Use distance.

  An example of variations regarding the shape of the electrode is shown in FIG. FIG. 25 is a diagram of the controller 1 as seen from the back 46 when the user holds it with both hands. When the middle finger comes into contact with the back surface 46, the contact position may slightly move up and down, so a strip-shaped electrode along the direction of the side surface is used. By using the band-shaped electrode, even if the position where the finger contacts is somewhat up and down, the electrode is still in contact and impedance measurement is possible.

  FIG. 26 shows an example of variations related to electrode arrangement. FIG. 26 is a diagram of the controller 1 as seen from the back 46 when the user holds it with both hands. Assuming the direction of the hand part including the finger when the user holds the controller 1, the electrode is tilted so as to be perpendicular to the direction of the hand part including the finger.

(Embodiment 2)
In the first embodiment, two electrodes are arranged on each of the left and right sides of the controller 1. However, when the size of the hand is significantly different from the assumption or when the user holds the hand differently from the assumption, the hand including the finger is included. This part may not be in contact with the electrode and it may be difficult to measure the impedance of both hands.

  FIG. 27 shows an example in which the problem occurs. FIG. 27 (a) shows an example in which when a child with a small hand has the controller 1, the hand does not reach the position where the electrode is located. FIG. 27 (b) shows an example in which the part of the hand including the finger is floating from the electrode depending on how it is held.

(Outline)
FIG. 28 shows the outer shape of the second embodiment. In order to solve the problem due to the size of the hand and how to hold it, three or more electrodes are arranged on the left side 44A of the controller 1 and the left side of the back side, and three or more electrodes are arranged on the right side 44 and the right side of the back side. The distance between the electrodes is about 1 mm. In addition, you may arrange | position on the upper surface 45 about the position of three or more electrodes on each of the left and right sides.

  The electrode in contact with the hand is detected from the three or more electrodes, and the left current application electrode 132, the left impedance measurement electrode 131, the right electrode are detected from the electrodes detected as being in contact with the hand. The current application electrode 134 and the right impedance measurement electrode 133 are assigned.

(System configuration including information processing device)
FIG. 29 shows a system configuration including the information processing apparatus according to the second embodiment. In addition to the system configuration including the information processing apparatus according to the first embodiment, a hand contact electrode detection unit 17 and an electrode function assignment unit 18 are provided. In the second embodiment, the hand contact electrode detection unit 17 and the electrode function assignment unit 18 are in the operation input device 1, but either or both may be in the information processing device 2.

(Overall processing flow)
FIG. 30 shows the overall processing flow in the second embodiment.

<Step S17>
The hand contact electrode detection unit 17 is in contact with the user's left hand from the electrode group arranged on the left side of the controller 1 and the user's right hand from the electrode group arranged on the right side of the controller 1. Detecting electrodes While detecting the electrode in contact with the hand, the current applying unit 16 does not apply current to all the electrodes. Potentials are measured from all the electrodes, and whether or not the electrodes are in contact with the hand is determined based on the presence or absence of the potential. If the potential is present, it is determined that the electrode is in contact with the hand, while if the potential is not present, it is determined that the electrode is not in contact with the hand.

  Note that the detection of the electrode in contact with the hand may be periodically re-executed. Further, the potential of the electrode in contact with the hand is detected from any of the current left impedance measurement electrode 131, left current application electrode 132, right impedance measurement electrode 133, and right current application electrode 134. If it runs out, you can try again.

<Step S18>
The electrode function allocating unit 18 includes a left impedance measuring electrode 131, a left current applying electrode 132, a right current applying electrode 134, and a right impedance measuring electrode 133 with respect to the electrodes detected by the hand contact electrode detecting unit 17. Assign the electrode to be. The allocation method will be described in the section “electrode function allocation processing flow” below.

<Step S131 to Step S232>
Steps S131 to S232 are the same as the processing flow described in the first embodiment.

(Electrode function assignment process flow)
FIG. 31 shows a processing flow of electrode function assignment.

<Step S181>
The electrode function assigning unit 18 selects two electrodes from the electrodes on the left side that are in contact with the hand. When there are three or more electrodes that are in contact with the hand, as the selection method, in the second embodiment, the two electrodes that are closest to the left end 431 of the operation surface are selected (see FIG. 28). In addition, as another selection method, you may select two with the most stable contact state with a hand. The degree of stability in the contact state with the hand depending on the position of the electrode is performed by pre-calibration.

<Step S182>
The electrode function assignment unit 18 obtains the distance from the left end 431 of the operation surface for the two electrodes selected in step S181.

<Step S183>
The electrode function assigning unit 18 assigns the electrode having the longer distance from the two distances obtained in step S182 to the left current applying electrode 132.

<Step S184>
The electrode function assignment unit 18 assigns the electrode having the shorter distance to the left impedance measurement electrode 131 from the two distances obtained in step S182.

<Step S185>
The electrode function assigning unit 18 selects two electrodes from the electrodes on the right side in contact with the hand. When there are three or more electrodes that are in contact with the hand, as the selection method, in the second embodiment, two electrodes that are closest to the right end 432 of the operation surface are selected (see FIG. 28). In addition, as another selection method, you may select two with the most stable contact state with a hand. The degree of stability in the contact state with the hand depending on the position of the electrode is performed by pre-calibration.

<Step S186>
The electrode function assignment unit 18 obtains the distance from the right end 432 of the operation surface for the two electrodes selected in step S185.

<Step S187>
The electrode function assignment unit 18 assigns the electrode having the longer distance from the two distances obtained in step S186 as the right current application electrode 134.

<Step S188>
The electrode function assigning unit 18 assigns the electrode having the shorter distance to the right impedance measuring electrode 133 from the two distances obtained in step S186.

(Explanation of effect)
With this configuration and processing, it is possible to measure both-hand impedance, regardless of whether the user's hand size is significantly different from what is assumed or the user is holding it differently than expected, and the user's respiration can be measured from the impedance of both hands. it can.

(Embodiment 3)
In the second embodiment, by installing a plurality of electrodes and changing the assignment of these electrodes, it is possible to deal with a case where the size of the hand is significantly different from the assumption or a case where the user has a holding method different from the assumption. In the present embodiment, the position of the current application electrode is physically moved so as to cope with the difference in the size of the user's hand.

  For example, as shown in FIG. 32, the positions of the current application electrodes 132 and 134 are installed so as to be movable in the horizontal direction. On the other hand, the impedance measuring electrodes 131 and 133 are installed so that the user's hand contacts. At this time, when a user with a small hand tries to reach his / her finger on the button on the operation surface, the current application electrodes 132 and 134 need to be installed near both ends. For a user with a large hand, when the current application electrodes 132 and 134 are close to both ends, the hand does not contact the impedance measurement electrodes 131 and 133.

  By allowing the current application electrodes 132 and 134 installed on the back surface of the controller to be slidable for users with different hand sizes, it is possible to cope with individual differences in hand sizes. is there. Next, the system configuration will be described.

  The system configuration of the present embodiment is shown in FIG. In the system shown in FIG. 33, a normal impedance determination unit 3301 that determines whether or not the measured impedance is in a normal range, and a television for the user according to the impedance value, compared to the first embodiment. It comprises a screen control unit 3302 that gives instructions on the screen or the like. Since the other modules are the same as the operation of the embodiment already described, the description thereof is omitted here.

  The normal impedance determination unit 3301 determines whether or not the impedance measured by the impedance measurement electrode is within a normal range when the user is touching the current application electrode and the system is supplying current. Judgment. In particular, it is determined whether or not the impedance is when the user's hand is in contact.

  The screen control unit 3302 is a finger touched by the current application electrode when it is determined that the user's hand is not in contact with the impedance measurement electrode based on the impedance determined by the normal impedance determination unit 3301. Is instructed to move. For example, as shown in FIG. 34, the user's hand is more likely to come into contact with the impedance measurement electrode by bringing the current application electrode closer to the center.

The flow of the above system will be briefly described with reference to FIG.
<Step S3501>
First, the user's left hand and right hand fingers are instructed to contact the current application electrode. After the contact of the current application electrode is confirmed, the current application unit 16 applies a current.
<Step S3502>
The impedance measurement unit 141 measures the impedance, and determines whether or not the user's hand is in contact with the impedance measurement electrode based on the magnitude of the impedance. If the user's hand is not in contact with the impedance measurement electrode, the process proceeds to step S3503. On the contrary, when it can be confirmed that the user's hand is in contact with the impedance measurement electrode, the process proceeds to S3504 and the subsequent steps, and the respiratory component is estimated from the impedance measurement.
<Step S3503>
When it is confirmed that the user's hand is not in contact with the impedance measurement electrode, the screen controller 3302 instructs the user to move the current application electrode as shown in FIG. Etc. After the instruction, the process returns to S3502. The above steps are repeated and instructions are continuously issued until the user's hand contacts the impedance measurement electrode.

  Thereby, even a user with a different hand size can measure the impedance by moving the current application electrode. As a result, the user's respiratory component can be estimated.

  According to the system including the information processing apparatus of the present invention, the user's respiration can be measured while the user operates the controller. Further, the user's respiration can be measured regardless of the size of the user's hand and the way the controller is held. As a result, the user can enjoy the game without being aware of the respiration measurement, and the measured respiration component of the user can be used in the game application, stored as a user health database, and analyzed. It is.

17 Hand contact electrode detection unit 18 Electrode function allocation unit 16 Current application unit 141 Impedance measurement unit 231 Respiration estimation unit 232 Respiration output unit 41, 42 Operation button 43 Operation surface 431 Operation surface left end 432 Operation surface right end 44A Left side surface 44 Right side 45 Upper side 45A Lower side 46 Back side 131 Left impedance measurement electrode 132 Left current application electrode 133 Right impedance measurement electrode 134 Right current application electrode 104 Impedance measurement module

Claims (19)

In an apparatus in which at least two electrodes are arranged on the right end and the left end in a form that the user holds with both hands,
Of the two electrodes arranged at the left end, an electrode arranged on the far side along the left side from the left end of the operation surface of the device, a left current application electrode,
An electrode arranged on the side closer to the left side from the left end of the operation surface of the device, and a left impedance measurement electrode,
Of the two electrodes arranged at the right end, an electrode arranged at the farther distance along the right side from the right end of the operation surface of the device, and a right current application electrode,
An electrode arranged on the right side along the right side from the right end of the operation surface of the device, and an electrode for right impedance measurement,
A current application unit for applying a current to the left current application electrode and the right current application electrode;
An impedance measurement unit that measures the impedance of both hands of the user with the left impedance measurement electrode and the right impedance measurement electrode;
A respiration estimation unit that estimates a respiration component with respect to the impedance measured by the impedance measurement unit,
A respiration output unit that outputs a respiration component estimated by the respiration estimation unit;
An information processing apparatus comprising: The left impedance measurement electrode and the right impedance measurement electrode are band-shaped electrodes along the direction of the side surface,
The information processing apparatus according to claim 1. The left impedance measurement electrode and the right impedance measurement electrode are electrodes that are inclined so as to be perpendicular to the direction of the hand part including the finger, assuming the direction of the hand part including the finger when the user holds the electrode. Prepare
The information processing apparatus according to claim 1.   The information processing apparatus according to claim 1, wherein the left impedance measurement electrode and the right impedance measurement electrode are electrodes having a width of 6.5 mm. The information processing apparatus according to claim 1, comprising electrodes arranged at intervals of 1 mm at each end. The information processing apparatus according to claim 1, wherein at least three electrodes are arranged on each of a right end and a left end.
A hand contact electrode detector for detecting an electrode in contact with the hand from the electrodes arranged at the right end and the left end,
Electrode function assignment for assigning the left impedance measurement electrode, the left current application electrode, the right current application electrode, and the right impedance measurement electrode to the electrodes detected by the hand contact electrode detection unit And
The information processing apparatus according to claim 1, comprising: The hand contact electrode detection unit measures each potential with respect to a plurality of electrodes at each end, and detects an electrode in contact with the user's hand depending on the presence or absence of the potential.
The information processing apparatus according to claim 5. The hand contact electrode detection unit may not measure a potential from any of the currently assigned left current application electrode, the left impedance measurement electrode, the right current application electrode, or the right impedance measurement electrode. , Re-detect the electrode in contact with the hand,
The information processing apparatus according to claim 5. The hand contact electrode detection unit re-executes detection of an electrode that is in contact with the hand periodically.
The information processing apparatus according to claim 5. The electrode function allocating unit selects two electrodes from the left end that are in contact with the user's hand, and selects the electrode having the farther distance from the left end of the operation surface along the left side as the left current application electrode. And assigning the electrode closer to the left side from the left end of the operation surface to the left impedance measurement electrode,
Two electrodes are selected from the electrodes at the right end that are in contact with the user's hand, and the electrode with the farther distance along the right side from the right end of the operation surface is selected as the right current application electrode and the right side surface from the right end of the operation surface. Assigning the electrode with the shorter distance along the right impedance measurement electrode,
The information processing apparatus according to claim 5. The electrode function allocating unit selects the two most stable contact states with the left hand and the right hand when there are three or more electrodes in contact with the left hand and the right hand.
The information processing apparatus according to claim 5. The electrode function allocating unit selects the two closest distances along the left side surface and the right side surface from the left end of the operation surface and the right end of the operation surface when there are three or more electrodes in contact with the left hand and the right hand.
The information processing apparatus according to claim 5. The current application unit does not flow current while the hand contact electrode detection unit is executed,
The information processing apparatus according to claim 5. The left current application electrode and the right current application electrode are arranged to be movable,
The information processing apparatus according to claim 1. In the information processing apparatus,
A screen control unit for detecting a contact state between the right impedance measurement electrode and the left impedance measurement electrode and instructing to move the left current application electrode and the right current application electrode according to the contact state;
The information processing apparatus according to claim 14. An information processing method using an apparatus in which at least two electrodes are arranged on the right end and the left end in a form that the user holds with both hands,
The device is
Of the two electrodes arranged at the left end, an electrode arranged on the far side along the left side from the left end of the operation surface of the device, a left current application electrode,
An electrode arranged on the side closer to the left side from the left end of the operation surface of the device, and a left impedance measurement electrode,
Of the two electrodes arranged at the right end, an electrode arranged at the farther distance along the right side from the right end of the operation surface of the device, and a right current application electrode,
The electrode arranged on the side closer to the right side surface from the right end of the operation surface of the device comprises a right impedance measurement electrode,
Applying a current to the left current application electrode and the right current application electrode in a current application unit;
In the impedance measurement unit, the step of measuring the impedance of both hands of the user with the left impedance measurement electrode and the right impedance measurement electrode;
A step of estimating a respiratory component with respect to the impedance measured by the impedance measuring unit in the respiratory estimating unit;
Outputting a respiratory component estimated by the respiratory estimation unit in a respiratory output unit;
Information processing method. A computer program for executing an information processing method using a device in which at least two electrodes are arranged on each of the right end and the left end in a form that the user holds with both hands,
The device is
Of the two electrodes arranged at the left end, an electrode arranged on the far side along the left side from the left end of the operation surface of the device, a left current application electrode,
An electrode arranged on the side closer to the left side from the left end of the operation surface of the device, and a left impedance measurement electrode,
Of the two electrodes arranged at the right end, an electrode arranged at the farther distance along the right side from the right end of the operation surface of the device, and a right current application electrode,
The electrode arranged on the side closer to the right side from the right end of the operation surface of the device is equipped with a right impedance measurement electrode,
Applying a current to the left current application electrode and the right current application electrode in a current application unit;
In the impedance measurement unit, the step of measuring the impedance of both hands of the user with the left impedance measurement electrode and the right impedance measurement electrode;
A step of estimating a respiratory component with respect to the impedance measured by the impedance measuring unit in the respiratory estimating unit;
Outputting a respiratory component estimated by the respiratory estimation unit in a respiratory output unit;
A computer program that executes A controller that is configured by a user's right hand and left hand and having a housing having an operation surface, a side surface, and a back surface;
A left current applying electrode that is on the left side across the center line of the housing, and disposed on the side surface or the back surface;
From the left end of the casing, the distance from the left end of the casing to the left current application electrode is on the left side across the center line of the casing and on the side or back surface. A left impedance measurement electrode arranged at a position at a small distance,
A right current application electrode that is on the right side across the center line of the housing, and is disposed on the side surface or the back surface;
From the left end of the casing, on the right side of the center line of the casing, and on the side or back surface, and more than the distance between the right end of the casing and the left current application electrode. A right impedance measurement electrode arranged at a position at a small distance,
A current application unit for applying a current to the left current application electrode and the right current application electrode;
Impedance for measuring the impedance of the user with the left impedance measurement electrode and the right impedance measurement electrode when a current is applied to the left current application electrode and the right current application electrode by the current application unit. With a measuring unit,
controller. An information processing method for measuring the impedance of the user by using a controller that is held by a user with a right hand and a left hand and configured with a casing having an operation surface, a side surface, and a back surface,
The controller is
A left current application electrode that is on the left side across the center line of the housing, and is disposed on the side surface or the back surface;
From the left end of the casing, the distance from the left end of the casing to the left current application electrode is on the left side across the center line of the casing and on the side or back surface. A left impedance measurement electrode arranged at a position at a small distance,
A right current application electrode that is on the right side across the center line of the housing, and is disposed on the side surface or the back surface;
From the left end of the casing, on the right side of the center line of the casing, and on the side or back surface, and more than the distance between the right end of the casing and the left current application electrode. A right impedance measurement electrode arranged at a position at a small distance,
A current application unit for applying a current to the left current application electrode and the right current application electrode;
With the left impedance measurement electrode and the right impedance measurement electrode, an impedance measurement unit that measures the impedance of the user,
When a current is applied to the left current application electrode and the right current application electrode by the current application unit, the impedance measurement unit provides the impedance of the user by the left impedance measurement electrode and the right impedance measurement electrode. Measuring
Information processing method.

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