Determination device, wearable device, determination method, and program

Abstract

According to the present invention, an abnormality of an object for determination is detected with a simple configuration.　A device body (3) causes a direct current to flow from a first electrode (31a) provided in a sweat collection unit (30) for collecting sweat of a user to a second electrode (31b), and then inverts the applied polarity of a constant voltage and causes a direct current to flow from the second electrode (31b) to the first electrode (31a). When the potential difference between the first electrode (31a) and the second electrode (31b) generated by the direct current becomes substantially constant, the device body (3) determines whether the user shows signs of an abnormality, specifically, dehydration, on the basis of the potential difference that has become substantially constant, and when the potential difference between the first electrode (31a) and the second electrode (31b) is within a predetermined numerical range, it is determined that the user shows signs of dehydration.

Description

Discrimination device, wearable device, discrimination method, and program

[0001] The present invention relates to a discrimination device, a wearable device, a discrimination method, and a program, and particularly to a discrimination device, a wearable device, a discrimination method, and a program that are capable of detecting abnormalities in a discrimination target with a simple configuration.

[0002] A dehydration assessment device is known that includes an impedance measuring means for measuring a bioelectrical impedance value by applying an alternating current to the body of a subject, a dehydration assessment means for assessing the dehydration state of the subject based on the measured bioelectrical impedance value, a assessment result display means for displaying the assessed dehydration state, an alarm time determination means for determining an alarm time, and an alarm means for notifying the subject at the determined alarm time (see, for example, Patent Document 1). The specification, claims, and drawings of Patent Document 1 are incorporated herein by reference in their entirety.

[0003] Japanese Patent Application Laid-Open No. 2002-034946

[0004] However, because the above-mentioned dehydration status determination device uses alternating current, its circuit configuration is complex, limiting its ability to be miniaturized. This poses problems such as high manufacturing costs, especially when applied to small devices such as wearable devices.

[0005] The present invention has been made to solve the above-mentioned problems, and aims to provide a discrimination device, a wearable device, a discrimination method, and a program that are capable of detecting abnormalities in a discrimination target with a simple configuration.

[0006] In order to achieve the above object, the discrimination device (3) according to the first aspect of the present invention is characterized in that it passes a direct current between a first electrode (31a) and a second electrode (31b) that come into contact with the sweat of the object to be discriminated, and determines whether or not an abnormality has occurred in the object to be discriminated based on the potential difference between the first electrode (31a) and the second electrode (31b) that is generated by passing the direct current.

[0007] The discrimination device (3) may be configured to pass the DC current from the first electrode (31 a) to the second electrode (31 b), and then pass the DC current from the second electrode (31 b) to the first electrode (31 a).

[0008] The discrimination device (3) may be configured to stop the DC current between the first electrode (31a) and the second electrode (31b) after passing the DC current from the second electrode (31b) to the first electrode (31a).

[0009] The discrimination device (3) may be configured to determine whether or not an abnormality has occurred in the object to be discriminated based on the substantially constant potential difference when the potential difference between the first electrode (31 a) and the second electrode (31 b) caused by the flow of the DC current becomes substantially constant.

[0010] The discrimination device (3) may be configured to determine that an abnormality has occurred in the object to be discriminated when the potential difference between the first electrode (31a) and the second electrode (31b) is within a predetermined numerical range.

[0011] The discrimination device (3) may be configured to determine whether or not the subject of discrimination is showing signs of dehydration as an abnormality in the subject of discrimination based on the potential difference between the first electrode (31a) and the second electrode (31b).

[0012] In the above discrimination device (3), the first electrode (31a) and the second electrode (31b) may be provided in a sweat collection section (30) that collects the sweat to be discriminated.

[0013] In the above-mentioned discrimination device (3), it is preferable that the sweat collection section (30) is a space formed in a portion of the discrimination device (3) that comes into contact with the discrimination target.

[0014] In the above discrimination device (3), it is preferable that the sweat collection section (30) is provided with a micro-flow path (60) that constitutes a channel through which the sweat to be discriminated flows.

[0015] In order to achieve the above-mentioned object, a wearable device (1) according to a second aspect of the present invention is characterized in that it comprises a discrimination device (3) that passes a direct current between a first electrode (31a) and a second electrode (31b) that come into contact with the sweat of the object to be discriminated, and determines whether or not an abnormality has occurred in the object to be discriminated based on the potential difference between the first electrode (31a) and the second electrode (31b) that is generated by passing the direct current, and a band (2) for attaching the discrimination device (3) to the object to be discriminated.

[0016] In order to achieve the above-mentioned object, the discrimination method according to the third aspect of the present invention is characterized in that a direct current is passed between a first electrode (31a) and a second electrode (31b) that come into contact with the sweat of the object to be discriminated, and whether or not an abnormality has occurred in the object to be discriminated is determined based on the potential difference between the first electrode (31a) and the second electrode (31b) that is generated by passing the direct current.

[0017] In order to achieve the above-mentioned object, the program according to the fourth aspect of the present invention causes a computer to execute the steps of passing a direct current between a first electrode (31a) and a second electrode (31b) that come into contact with the sweat of the object to be discriminated, and determining whether or not an abnormality has occurred in the object to be discriminated based on the potential difference between the first electrode (31a) and the second electrode (31b) that is generated by passing the direct current.

[0018] According to the present invention, it is possible to provide a discrimination device, a wearable device, a discrimination method, and a program that are capable of detecting abnormalities in a discrimination target with a simple configuration.

[0019] 1 is an external perspective view showing an example of the configuration of a wearable device according to the present embodiment; (a) is a back view showing an example of the configuration of a device main body according to the present embodiment, and (b) is a side cross-sectional view showing an example of the configuration of a device main body according to the present embodiment; ...c) is an enlarged view of a microchannel; (a) is a back view showing an example of the configuration of a device main body according to a modified example; (b) is a side cross-sectional view showing an example of the configuration of a device main body according to the modified example; and (c) is an enlarged view of a microchannel; (c) is a view showing an example of the circuit configuration of a device main body according to the modified example; and (b) is a timing chart showing an example of the current and the measured voltage.

[0020] Hereinafter, an embodiment of the present invention will be described.

[0021] First, the configuration of a wearable device according to an embodiment of the present invention will be described with reference to the drawings.

[0022] The wearable device according to this embodiment is configured, for example, by a wristwatch-type electronic device such as a smart watch.

[0023] FIG. 1 is a perspective view showing an example of the configuration of a wearable device according to this embodiment.

[0024] 1, the wearable device 1 includes a band 2 and a device main body (discrimination device) 3. In this embodiment, when the wearable device 1 is worn, the surface of the device main body 3 that comes into contact with the wrist of the user (the object to be discriminated) is referred to as the back surface, the opposite surface (the surface with the touch screen) is referred to as the front surface, the contact surfaces between the band 2 and the device main body 3 are referred to as the top and bottom surfaces, and the remaining surfaces are referred to as side surfaces.

[0025] The band 2 is used to wear the wearable device 1. The user can wear the wearable device 1 by wrapping the band 2 around the wrist with the back surface of the device body 3 facing inward.

[0026] The device main body 3 is composed of electronic devices including various sensors, a touch screen, wireless communication devices, operation buttons, a speaker, and an MCU (Micro Controller Unit), etc. The MCU uses RAM (Random Access Memory) as a working memory and controls various operations of the device main body 3 by appropriately executing various programs stored in ROM (Read Only Memory) and a storage unit.

[0027] Under control of the MCU, the device main body 3 measures biological information such as the user's core body temperature and blood pressure using sensors, and displays the information on the touch screen or wirelessly transmits it to an external computer such as a smartphone. In this embodiment, under control of the MCU, the device main body 3 determines whether or not the user is experiencing any abnormalities, specifically, whether or not the user is showing signs of dehydration, and warns the user of the presence of signs of dehydration by displaying a warning message on the touch screen, outputting a warning sound from the speaker, or wirelessly transmitting the information to an external computer such as a smartphone.

[0028] FIG. 2A is a rear view showing an example of the configuration of the device main body according to this embodiment, and FIG. 2B is a side cross-sectional view showing the example of the configuration of the device main body according to this embodiment.

[0029] As shown in Fig. 2(a), a sweat collection section 30, which is a space for collecting sweat from the user, is formed on the back surface (the surface that comes into contact with the user's wrist) of the device main body 3. As shown in Fig. 2(b), the sweat collection section 30 has a predetermined volume, and the sweat collection section 30 enables the device main body 3 to keep the amount of sweat of the user to be measured constant.

[0030] 2(a), two electrodes, a first electrode 31a and a second electrode 31b, which come into contact with the user's sweat, are provided in the area where the sweat collection section 30 is formed on the back surface of the device body 3. The first electrode 31a and the second electrode 31b are made of a metal such as copper that has excellent conductivity.

[0031] FIG. 3 is a diagram illustrating the circuit configuration of the device main body.

[0032] 3, the MCU 32 controls the constant voltage source 33 to apply a voltage between the first electrode 31 a and the second electrode 31 b to pass a direct current, and measures the potential difference between the first electrode 31 a and the second electrode 31 b. The MCU 32 then determines whether the user is experiencing signs of dehydration based on the potential difference between the first electrode 31 a and the second electrode 31 b (hereinafter referred to as the "measured voltage"). Specifically, if the measured voltage is within a predetermined range, the MCU 32 determines that the user is experiencing signs of dehydration because the conductivity in the sweat collection unit 30 is high and the user is sweating a lot.

[0033] FIG. 4 is an explanatory diagram illustrating the operation of the device main body.

[0034] In this embodiment, the MCU 32 controls the constant voltage source 33 to apply a direct current from the first electrode 31 a to the second electrode 31 b as shown in Fig. 4(a), and then reverses the polarity of the applied constant voltage to apply a direct current from the second electrode 31 b to the first electrode 31 a as shown in Fig. 4(b). By reversing the polarity of the applied constant voltage in this manner, the MCU 32 can prevent the deposition of salts such as copper chloride (CuCl2) between the first electrode 31 a and the second electrode 31 b, just as when an alternating current is applied.

[0035] FIG. 5 is a timing chart illustrating the potential difference between A and B and the measured voltage.

[0036] The potential difference between A and B is the potential difference between points A and B shown in FIG.

[0037] 5, during the period from timing T1 to T2 (e.g., 50 to 60 ms), the MCU 32 first controls the constant voltage source 33 to apply a voltage so that a direct current flows from the first electrode 31a to the second electrode 31b. During this period, the potential difference between the first electrode 31a and the second electrode 31b gradually increases and becomes substantially constant at timing T2. At timing t1, the MCU 32 measures the substantially constant potential difference between the first electrode 31a and the second electrode 31b (at the measurement point shown in FIG. 4), and acquires this as a measured voltage.

[0038] Next, during the period from timing T2 to T3 (e.g., 50 to 60 ms), the MCU 32 controls the constant voltage source 33 to apply a voltage such that a direct current flows from the second electrode 31b to the first electrode 31a, i.e., such that the polarity of the applied constant voltage is reversed. During this period, the potential difference between the first electrode 31a and the second electrode 31b gradually decreases and becomes substantially constant at timing T2. At timing T3, the MCU 32 measures the substantially constant potential difference between the first electrode 31a and the second electrode 31b and acquires it as the measured voltage. Note that, although it is preferable that the period from timing T1 to T2 and the period from timing T2 to T3 are substantially the same, they may also be different. Furthermore, the timing for measuring the potential difference between the first electrode 31a and the second electrode 31b is not limited to the timings T2 and T3 when the potential differences become substantially equal, as in this embodiment, but may be any predetermined timing before the potential differences become substantially equal, such as, for example, after a predetermined period Tc (<T2-T1, T3-T2) from the timings T1 and T2.

[0039] Then, during the period from timing T3 to T4 (for example, 60 seconds), the MCU 32 puts the constant voltage source 33 into a sleep state and stops the application of voltage by the constant voltage source 33. That is, the MCU 32 stops the DC current between the first electrode 31a and the second electrode 31b. The period from timing T3 to T4, during which the constant voltage source 33 is put into the sleep state, is preferably sufficiently longer than the period from timing T1 to T2, during which the constant voltage source 33 applies voltage, and the period from timing T2 to T3.

[0040] Thereafter, the MCU 32 repeats the above-described control of the constant voltage source 33 .

[0041] In this way, the MCU 32 can measure the potential difference between the first electrode 31a and the second electrode 31b, which has become approximately constant, while reversing the direction of the DC current, and thereby measure the potential difference between the first electrode 31a and the second electrode 31b in the same way as when an AC current is passed.

[0042] Furthermore, after applying a voltage from the constant voltage source 33, the MCU 32 can reduce power consumption as much as possible by putting the constant voltage source 33 into a sleep state.

[0043] The MCU 32 then determines whether the acquired measured voltage is within a predetermined range. If the measured voltage is within the predetermined range, the MCU 32 determines that the user is experiencing signs of dehydration and warns the user of the presence of signs of dehydration by displaying a warning message on the touch screen, outputting a warning sound from the speaker, or wirelessly transmitting the warning to an external computer such as a smartphone.

[0044] As described above, the wearable device 1 according to this embodiment comprises a device main body (discrimination device) 3 that passes a direct current between the first electrode 31a and the second electrode 31b that come into contact with the sweat of the user (subject to be discriminated) and determines whether or not the user is experiencing any abnormalities, specifically, whether or not the user is showing signs of dehydration, based on the potential difference between the first electrode 31a and the second electrode 31b that is generated by passing the direct current, and a band 2 for attaching the device main body 3 to the user.

[0045] After the device main body 3 passes a direct current from the first electrode 31 a to the second electrode 31 b, it reverses the polarity of the applied constant voltage and passes a direct current from the second electrode 31 b to the first electrode 31 a. When the potential difference between the first electrode 31 a and the second electrode 31 b, which is generated by passing the direct current, becomes substantially constant, the device main body 3 determines whether or not the user is experiencing symptoms of dehydration based on the substantially constant potential difference, and determines that the user is experiencing symptoms of dehydration if the potential difference between the first electrode 31 a and the second electrode 31 b is within a predetermined numerical range.

[0046] In this way, the device main body 3 can determine whether the user is showing signs of dehydration by measuring the potential difference between the first electrode 31a and the second electrode 31b, which are two electrodes that have become approximately constant, while reversing the polarity of the applied constant voltage, in the same way as when an alternating current is passed through.Therefore, dehydration can be detected with a simpler configuration than when an alternating current is passed through.

[0047] Furthermore, the device body 3 can prevent salt from being deposited on the first electrode 31a and the second electrode 31b by reversing the polarity of the applied constant voltage.

[0048] Furthermore, the device body 3 reverses the polarity of the applied constant voltage to pass a direct current from the second electrode 31b to the first electrode 31a, and then stops the direct current between the first electrode 31a and the second electrode 31b.

[0049] While AC current must be supplied at all times, the device body 3 can achieve the same effect as when AC current is supplied by reversing the polarity of the applied constant voltage, so the constant voltage source 33 that supplies DC current can be periodically put into a sleep state, reducing power consumption as much as possible and allowing continuous operation for a longer period of time than when AC current is supplied.

[0050] A sweat collection section 30, which is a space for collecting the user's sweat, is formed on the back surface (the surface that comes into contact with the user's wrist) of the device main body 3. The first electrode 31a and the second electrode 31b are provided within the sweat collection section 30.

[0051] The device main body 3 uses the sweat collection unit 30 to keep the amount of sweat of the user being measured constant, making it possible to quantitatively measure the potential difference between the first electrode 31a and the second electrode 31b, and making it easier to compare the conductivity within the sweat collection unit 30.

[0052] Furthermore, by providing the sweat collection unit 30, the device main body 3 can determine whether or not the user is experiencing signs of dehydration from a small amount of sweat.

[0053] The present invention is not limited to the above-described embodiment, and various modifications and applications are possible. Modifications of the above-described embodiment that can be applied to the present invention will be described below.

[0054] In the above embodiment, the sweat collection unit 30 that collects the user's sweat has been described as a space formed on the back surface (the surface that comes into contact with the user's wrist) of the device main body 3. However, the present invention is not limited to this, and any material may be used as long as it is capable of collecting the user's sweat, and a microchannel for collecting the user's sweat may be formed on the back surface of the device main body 3.

[0055] FIG. 6( a) is a rear view showing an example of the configuration of a device main body according to a modified example, FIG. 6( b) is a side cross-sectional view showing an example of the configuration of a device main body according to a modified example, and FIG. 6( c) is an enlarged view of a microchannel.

[0056] The same components as those of the device body 3 according to the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0057] 6(a), a microchannel 60 is provided between the first electrode 31a and the second electrode 31b in the sweat collection section 30, which is a space formed on the back surface (the surface that comes into contact with the user's wrist) of the device main body 3. The microchannel 60 constitutes a sweat collection channel, which is a groove or passage (path) through which sweat of the user to be measured flows.

[0058] As shown in Figure 6 (b), the microchannel 60 is provided protruding into the sweat collection section 30, so even if the device main body 3 is worn by pressing it firmly against the user's wrist, the shape of the microchannel 60 prevents the user's skin from coming into contact with the first electrode 31a and the second electrode 31b.

[0059] 6(c), the microchannel 60 can move the user's sweat from the inlet 61 to the outlet 62 by capillary action and hydrophilic coating. The microchannel 61 allows the device main body 3 to pass the sweat of the user to be measured near the first electrode 31a and the second electrode 31b multiple times, thereby ensuring redundancy.

[0060] In the above embodiment, the device body 3 is described as including the constant voltage source 33, and applying a voltage between the first electrode 31 a and the second electrode 31 b to cause a direct current to flow by the constant voltage source 33. However, the present invention is not limited to this, and the device body 3 may be provided with a constant current source instead of the constant voltage source 33, or may cause a direct current to flow between the first electrode 31 a and the second electrode 31 b by the constant current source.

[0061] FIG. 7 is a diagram illustrating a circuit configuration of a device main body according to a modified example.

[0062] The same components as those of the device body 3 according to the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0063] As shown in FIG. 7, the MCU 32 controls the constant current source 73 to pass a constant current (DC current) between the first electrode 31a and the second electrode 31b, and measures the potential difference between the first electrode 31a and the second electrode 31b.

[0064] In this modified example, the MCU 32 controls the constant current source 73 to pass a constant current from the first electrode 31a to the second electrode 31b, as in the above embodiment, and then reverses the direction of the constant current flow and passes the constant current from the second electrode 31b to the first electrode 31a.

[0065] FIG. 8 is a diagram illustrating a timing chart of the current and the measured voltage.

[0066] In this modification, the constant current flowing from the first electrode 31a to the second electrode 31b is defined as "positive," and the constant current flowing from the second electrode 31b to the first electrode 31a is defined as "negative."

[0067] As shown in Figure 8(a), during the period from timing T1 to T2 (e.g., 50 to 60 ms), the MCU 32 first controls the constant current source 73 to flow a constant current from the first electrode 31a to the second electrode 31b. During this period, as shown in Figure 8(b), the potential difference between the first electrode 31a and the second electrode 31b gradually increases. At timing (T1+Tc) that is a predetermined period Tc after timing T1, the MCU 32 measures the potential difference between the first electrode 31a and the second electrode 31b and acquires it as a measured voltage.

[0068] Next, as shown in FIG. 8A, during the period from timing T2 to T3 (e.g., 50 to 60 ms), the MCU 32 controls the constant current source 73 to reverse the direction of the constant current flow and cause the constant current to flow from the second electrode 31b to the first electrode 31a. During this period, as shown in FIG. 8B, the potential difference between the first electrode 31a and the second electrode 31b gradually increases in the negative direction. At timing (T2+Tc) a predetermined period Tc after timing T2, the MCU 32 measures the potential difference between the first electrode 31a and the second electrode 31b and acquires it as a measured voltage.

[0069] In this modified example, the constant current source 73, like the constant voltage source 33 in the above embodiment, allows the MCU 32 to measure the potential difference between the first electrode 31a and the second electrode 31b while reversing the direction of flow of the constant current (DC current), thereby measuring the potential difference between the first electrode 31a and the second electrode 31b in the same way as when an AC current is passed.

[0070] In the above embodiment, the user's abnormality has been described as a symptom of dehydration. However, the present invention is not limited to this and may be any abnormality that can be identified based on sweat, such as a symptom or worsening of hyponatremia, psychogenic sweating, hot flashes, autonomic imbalance, thyroid tumor, malignant lymphoma, social anxiety disorder, anxiety disorder(s), hyperhidrosis, menopausal disorder, hypoglycemia (hypoglycemia), Apert syndrome, etc.

[0071] In the above embodiment, the object to be discriminated is described as a human user of the wearable device 1. However, the present invention is not limited to this and can be applied to any living organism that sweats, and the discrimination device according to the present invention can also be applied to detect abnormalities in mammals that sweat a lot, such as horses, cows, hippos, and monkeys.

[0072] In the above embodiment, the program executed by the MCU is described as being stored in advance in a ROM, a memory unit, etc., but the present invention is not limited to this, and the program for executing the above-mentioned processing may be applied to an existing general-purpose computer to function as the device main body 3 in the above embodiment.

[0073] Such a program may be provided in any manner, for example, by storing it on a computer-readable recording medium (such as a flexible disk, a CD (Compact Disc)-ROM, or a DVD (Digital Versatile Disc)-ROM) and distributing it, or by storing the program in storage on a network such as the Internet and providing it by downloading it.

[0074] Furthermore, when the above processing is performed by sharing the work between an OS (Operating System) and an application program, or by cooperation between the OS and the application program, only the application program may be stored on a recording medium or storage. It is also possible to superimpose the program on a carrier wave and distribute it over a network. For example, the program may be posted on a bulletin board system (BBS) on a network and distributed over the network. The program may then be started and executed under the control of the OS in the same way as other application programs, thereby enabling the above processing to be performed.

[0075] It should be noted that the present invention is susceptible to various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiment is merely an example of the present invention and does not limit the scope of the present invention.

[0076] REFERENCE SIGNS LIST 1 Wearable device 2 Band 3 Device body (discrimination device) 30 Sweat collection section 31a First electrode 31b Second electrode 32 MCU 33 Constant voltage source 60 Microchannel 61 Inlet 62 Outlet 73 Constant current source

Claims

1. A discrimination device (3) that passes a direct current between a first electrode (31a) and a second electrode (31b) that come into contact with the sweat of an object to be discriminated, and discriminates whether or not an abnormality has occurred in the object to be discriminated based on the potential difference between the first electrode (31a) and the second electrode (31b) that is generated by passing the direct current.

2. The discrimination device (3) according to claim 1, characterized in that the DC current is passed from the first electrode (31a) to the second electrode (31b), and then the DC current is passed from the second electrode (31b) to the first electrode (31a).

3. The discrimination device (3) according to claim 2, characterized in that, after the DC current has been passed from the second electrode (31b) to the first electrode (31a), the DC current between the first electrode (31a) and the second electrode (31b) is stopped.

4. The discrimination device (3) according to claim 1, characterized in that when the potential difference between the first electrode (31a) and the second electrode (31b) caused by the flow of the DC current becomes approximately constant, it determines whether or not an abnormality has occurred in the object to be discriminated based on the approximately constant potential difference.

5. The discrimination device (3) according to claim 1, characterized in that it determines that an abnormality has occurred in the discrimination object when the potential difference between the first electrode (31a) and the second electrode (31b) is within a predetermined numerical range.

6. The discrimination device (3) described in claim 1, characterized in that it determines whether or not the subject of discrimination is showing signs of dehydration as an abnormality in the subject of discrimination based on the potential difference between the first electrode (31a) and the second electrode (31b).

7. The discrimination device (3) according to claim 1, characterized in that the first electrode (31a) and the second electrode (31b) are provided within a sweat collection section (30) that collects the sweat to be discriminated.

8. The discrimination device (3) according to claim 7, wherein the sweat collection section (30) is a space formed in a portion of the discrimination device (3) that comes into contact with the discrimination target.

9. The discrimination device (3) according to claim 7, characterized in that the sweat collection section (30) is provided with a micro-flow path (60) that forms a channel through which the sweat to be discriminated flows.

10. A wearable device (1) comprising: a discrimination device (3) that passes a direct current between a first electrode (31a) and a second electrode (31b) that come into contact with the sweat of an object to be discriminated, and determines whether or not an abnormality has occurred in the object to be discriminated based on the potential difference between the first electrode (31a) and the second electrode (31b) that is generated by passing the direct current; and a band (2) for attaching the discrimination device (3) to the object to be discriminated.

11. A discrimination method comprising: passing a direct current between a first electrode (31a) and a second electrode (31b) that come into contact with the sweat of an object to be discriminated; and discriminating whether or not an abnormality has occurred in the object to be discriminated based on the potential difference between the first electrode (31a) and the second electrode (31b) that is generated by passing the direct current.

12. A program for causing a computer to execute the steps of: passing a direct current between a first electrode (31a) and a second electrode (31b) that come into contact with the sweat of the object to be discriminated; and determining whether or not an abnormality has occurred in the object to be discriminated based on the potential difference between the first electrode (31a) and the second electrode (31b) that is generated by passing the direct current.

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