Body-worn thermometer, electronic device, and method and program for detecting misalignment

Abstract

To detect deviation of an attachment position of a thermometer which is attached to a hole part of a body and is used.SOLUTION: A body attachment type thermometer 100 comprises: an insertion part having a temperature sensor 131 for acquiring a temperature of a hole part of a body of the wearer, and inserted into the hole part and is attached; a sound output part 140 for outputting sound to the hole part; a sound sensor 132 for measuring inner sound in the hole part being sound in the hole part; and a processing part 110 for, on the basis of the inner sound in the hole part measured by the sound sensor 132 in a state of outputting sound by the sound output part 140, determining whether an attachment position of the insertion part is deviated.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a body-worn thermometer, an electronic device, a method for detecting misalignment of the body, and a program. [Background technology]

[0002] Ear-worn thermometers are known as devices that measure body temperature continuously over long periods of time. In these thermometers, a probe equipped with a temperature measurement element, such as an infrared sensor, thermopile, or thermistor, is inserted into the ear canal to measure body temperature. These elements are either directional or non-directional. Directional elements (e.g., infrared sensors and thermopiles) measure body temperature by detecting the temperature near the eardrum, while non-directional elements (e.g., thermistors) measure the average temperature within the ear canal. Therefore, if the probe is not properly attached to the ear, it may detect temperatures other than those near the eardrum or temperatures that are a mixture of the temperature and the temperature of the outside air, resulting in an inaccurate measurement of body temperature. Therefore, a device that can be securely attached to the ear canal is desirable. For example, Patent Document 1 discloses a thermometer that can be securely attached to a child's ear canal and can measure body temperature stably. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 204048 Summary of the Invention [Problem to be solved by the invention]

[0004] The thermometer disclosed in Patent Document 1 has a cable holder that allows the signal cable to be looped into the cavity of the concha of any size, and the cable holder can also be used as a grip, making it possible to easily and securely attach the probe to the ear canal regardless of the size of the ear. However, this thermometer is intended to be used while the wearer is at rest, such as during surgery, and if the wearer moves vigorously, the probe will be displaced and the correct body temperature will not be measured.

[0005] The present invention has been made in consideration of the above-mentioned situation, and aims to provide a body-worn thermometer, electronic device, mis-fit detection system, mis-fit detection method, and program that can detect if a thermometer that is worn in an orifice on the body has shifted out of position. [Means for solving the problem]

[0006] In order to achieve the above object, one aspect of the body-worn thermometer according to the present invention is to an insertion section that has a temperature acquisition section that acquires the temperature of a hole in the wearer's body and is inserted into the hole and worn; a sound output unit that outputs sound to the hole; a sound measuring unit for measuring an internal hole sound, which is a sound inside the hole; The sound inside the hole measured by the sound measuring unit while the sound output unit is outputting sound. Whether the level of frequency components below the reference frequency is below the reference level a processing unit that determines whether the attachment position of the insertion unit is misaligned based on the Equipped with 、 The processing unit If the temperature change acquired by the temperature acquisition unit is greater than the reference temperature change, The sound output unit reproduces sound data for determining whether the insertion unit is misaligned, thereby determining whether the insertion unit is misaligned. . [Effects of the Invention]

[0007] According to the present invention, it is possible to detect displacement of the attachment position of a thermometer that is attached to a body orifice. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an example of a misfit detection system according to first and second embodiments. [Figure 2] FIG. 2 is a diagram showing an example of the functional configuration of the body-worn thermometer according to the first and second embodiments. [Figure 3] 1 is a diagram illustrating an example of a functional configuration of an electronic device according to first and second embodiments. [Figure 4] FIG. 1 is a diagram illustrating an overview of a body-worn thermometer before it is inserted into the ear. [Figure 5] FIG. 10 is a diagram illustrating a case where the body-worn thermometer is correctly attached to the ear. [Figure 6] FIG. 10 is a diagram showing an example of temperature changes when a body-worn thermometer is correctly attached to the ear. [Figure 7] 10A and 10B are diagrams illustrating a case where the body-worn thermometer is about to come off the ear. [Figure 8] FIG. 10 is a diagram showing an example of a temperature change when the body-worn thermometer is about to come off the ear. [Figure 9] FIG. 10 is a diagram showing an example of a frequency spectrum when a body-worn thermometer is properly attached to the ear. [Figure 10] FIG. 10 is a diagram showing an example of a frequency spectrum when the body-worn thermometer is about to come off the ear. [Figure 11] FIG. 10 is a diagram showing an example of a frequency spectrum when the body-worn thermometer is correctly attached to the ear, in comparison with an example of a frequency spectrum when the body-worn thermometer is about to come off the ear. [Figure 12] FIG. 10 is a diagram illustrating an example of a reference frequency spectrum. [Figure 13] FIG. 10 is a diagram showing a comparison between an example of a reference frequency spectrum and an example of a frequency spectrum when the body-worn thermometer is about to come off the ear. [Figure 14] 10 is an example of a flowchart of an on-wear determination process according to the first and second embodiments. [Figure 15] 10 is an example of a flowchart of a gap determination process according to the first and second embodiments. [Figure 16] 10A and 10B are diagrams showing an example of an original frequency spectrum and an example of a frequency spectrum during reproduction in comparison with each other; [Figure 17] 10 is an example of a flowchart of a process for determining whether any music piece is used according to a modification of the first and second embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0009] A body-worn thermometer and the like according to an embodiment will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals.

[0010] (Embodiment 1) The body-worn thermometer according to the first embodiment is a wireless earphone-type device that can be worn by a user (wearer) in the ear to listen to music and measure the user's body temperature.

[0011] As shown in Fig. 1, the misplacement detection system 1000 according to the first embodiment includes a body-worn thermometer 100 and an electronic device 200 such as a smartphone, which are connected to each other for communication via Bluetooth (registered trademark) or the like and operate. When a user wears the body-worn thermometer 100 in their ear, they can listen to music played on the electronic device 200 and measure their body temperature. Fig. 1 shows how the body temperature (36.5°C) measured by the body-worn thermometer 100 and the music (Title-0011) being played are displayed on the electronic device 200.

[0012] The body-worn thermometer 100 according to the first embodiment includes, as functional components, a processing unit 110, a storage unit 120, a sensor unit 130, a sound output unit 140, an operation unit 150, and a communication unit 160, as shown in FIG.

[0013] The processing unit 110 is configured with a processor such as a CPU (Central Processing Unit). The processing unit 110 executes programs stored in the storage unit 120 to perform various processes for operating the body-worn thermometer 100. For example, the processing unit 110 decodes digital sound data received from the electronic device 200 via the communication unit 160 and outputs the data from the sound output unit 140. This allows the body-worn thermometer 100 to function as a wireless earphone for the electronic device 200.

[0014] Furthermore, the processing unit 110 performs processing to periodically transmit various data acquired by the sensor unit 130 (the user's body temperature detected by the temperature sensor 131, the sound detected by the sound sensor 132, information on whether the body-worn thermometer 100 is inserted into the ear detected by the insertion sensor 133, and the acceleration detected by the acceleration sensor 134) to the electronic device 200 via the communication unit 160. This allows the electronic device 200 to display the user's body temperature and detect whether the body-worn thermometer 100 is being worn out of place.

[0015] The storage unit 120 stores programs executed by the processing unit 110 and necessary data. The storage unit 120 may include, but is not limited to, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, etc. Note that the storage unit 120 may be provided inside the processing unit 110.

[0016] The sensor unit 130 includes a temperature sensor 131, a sound sensor 132, an insertion sensor 133, and an acceleration sensor 134, and detects various types of information. However, the sensor unit 130 does not need to include other sensors as long as it includes the temperature sensor 131 and the sound sensor 132. The sensor unit 130 may also include sensors other than those described above.

[0017] The temperature sensor 131 includes an infrared sensor and acquires the surface temperature of an object in the direction in which the infrared sensor is pointed. When the body-worn thermometer 100 is properly worn on the ear, the temperature sensor 131 measures the temperature near the eardrum. The temperature sensor 131 functions as a temperature acquisition unit.

[0018] The sound sensor 132 is equipped with a microphone and measures ambient sounds. When the body-worn thermometer 100 is properly worn on the ear, the sound sensor 132 measures the sound (intra-ear sound) output into the ear canal by the sound output unit 140, which will be described later. The sound sensor 132 functions as a sound measurement unit.

[0019] The insertion sensor 133 includes an infrared light-emitting element and a light-receiving element, and detects that the body-worn thermometer 100 has been inserted into the ear canal. The insertion sensor 133 functions as an insertion detection unit. Note that the temperature sensor 131 can also detect that the body-worn thermometer 100 has been inserted into the ear canal, for example, by a change in the acquired temperature, so the temperature sensor 131 may also serve as the insertion sensor 133. In this case, the temperature sensor 131 also functions as the insertion detection unit.

[0020] The acceleration sensor 134 is a three-axis acceleration sensor that detects movement in three orthogonal axial directions. For example, when a user wearing the body-worn thermometer 100 moves, the processing unit 110 can acquire from the acceleration sensor 134 the direction and degree of acceleration of the movement. The acceleration sensor 134 functions as an acceleration detection unit.

[0021] The sound output unit 140 includes a small speaker and outputs sounds such as music played when the body-worn thermometer 100 functions as a wireless earphone to the ear canal. The body-worn thermometer 100 may have a function to announce the user's body temperature detected by the temperature sensor 131 by voice from the sound output unit 140.

[0022] The operation unit 150 is a user interface such as a push button switch, and receives operation input from the user. For example, when the user sets the body-worn thermometer 100 to be paired with the electronic device 200, the user turns on the pairing mode in the operation unit 150.

[0023] The communication unit 160 is a communication interface for transmitting and receiving data between the body-worn thermometer 100 and the electronic device 200 via Bluetooth (registered trademark). By communicating with the electronic device 200 via the communication unit 160, the body-worn thermometer 100 functions as an earphone for the electronic device 200. However, the communication standard supported by the communication unit 160 is not limited to Bluetooth (registered trademark), and may be a wireless communication interface compatible with a wireless LAN (Local Area Network) or the like.

[0024] As shown in FIG. 3, the electronic device 200 according to the first embodiment includes a processing unit 210, a storage unit 220, a display unit 230, an output unit 240, an operation unit 250, and a communication unit 260 as functional components.

[0025] The processing unit 210 is configured with a processor such as a CPU (Central Processing Unit). The processing unit 210 executes a later-described on-wear confirmation process and the like using a program stored in the storage unit 220. The processing unit 210 supports multi-thread processing and can execute multiple processes in parallel. Although details of the process for obtaining body temperature are omitted here, the processing unit 210 periodically receives the detection value (user's body temperature) of the temperature sensor 131 from the body-worn thermometer 100 and performs processing to display the value on the display unit 230 as necessary.

[0026] The storage unit 220 stores programs executed by the processing unit 210 and necessary data. The storage unit 220 may include, but is not limited to, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, etc. Note that the storage unit 220 may be provided inside the processing unit 210.

[0027] The display unit 230 includes a display device such as a liquid crystal display or an organic EL (Electro-Luminescence) display.

[0028] The output unit 240 includes a speaker and outputs audio announcements, etc. Note that the electronic device 200 may include, as the output unit 240, an LED (Light Emitting Diode) as a light-emitting unit or a vibrator as a vibration unit, instead of or in addition to the speaker.

[0029] The operation unit 250 is a user interface such as a push button switch or a touch panel integrated with the display unit 230, and receives operation input from the user. The processing unit 210 can acquire what operation input the user has performed based on the detection results of a tap operation on the touch panel or the pressed state of a switch.

[0030] The communication unit 260 is a communication interface that enables the electronic device 200 to communicate data with the body-worn thermometer 100 or external devices (for example, other smartphones, tablets, PCs (Personal Computers), etc.) and to acquire information from the Internet. The communication unit 260 may include a wireless communication interface for communicating via Bluetooth (registered trademark) or wireless LAN, for example. By communicating with the body-worn thermometer 100 via the communication unit 260, the body-worn thermometer 100 functions as an earphone for the electronic device 200. Furthermore, the electronic device 200 can acquire the body temperature acquired by the body-worn thermometer 100 and detection values ​​from various sensors via the communication unit 260.

[0031] 4, a temperature sensor 131 is located at the tip of the earpiece 101 of the body-worn thermometer 100, and when the user inserts the body-worn thermometer 100 into the ear canal 301 of the ear 300, the temperature sensor 131 acquires the temperature of the eardrum 302. The earpiece 101 is the part that is inserted into the ear canal 301, and is therefore also called an insertion part.

[0032] As shown in Fig. 5, when the body-worn thermometer 100 is properly fitted into the ear canal 301, no gap is created between the ear canal 301 and the earpiece 101, and the temperature of the eardrum 302 is stable. Therefore, in this case, a stable temperature (temperature curve 511) is acquired by the temperature sensor 131, as shown in Fig. 6. Note that in Fig. 6, the temperature of the eardrum 302 is not stable for about one second after the body-worn thermometer 100 is inserted into the ear canal 301, but this is due to the influence of outside air entering the ear canal 301 when the body-worn thermometer 100 is inserted.

[0033] Furthermore, even if the body-worn thermometer 100 is initially worn correctly as shown in FIG. 5, if the user vigorously moves their body while playing sports or the like, it may become misaligned as shown in FIG. 7. In this case, a gap 310 is formed between the ear canal 301 and the earpiece 101, and outside air with a temperature lower than body temperature enters the ear canal 301 through this gap 310. Therefore, as shown in FIG. 8, the temperature acquired by the temperature sensor 131 (temperature curve 512) becomes unstable, making it impossible to measure the body temperature accurately. Note that FIG. 8 shows the temperature change when the body-worn thermometer 100 is about to come off about three seconds after it was inserted into the ear canal 301.

[0034] Furthermore, since the body-worn thermometer 100 is equipped with a sound sensor 132, the sound inside the ear can be measured by the sound sensor 132 while sound is being output from the sound output unit 140. The processing unit 110 can then perform frequency analysis (using FFT (Fast Fourier Transform) or the like) on the sound measured by the sound sensor 132 to obtain a frequency spectrum. Note that, because there is a difference between the sound reproduced by the sound output unit 140 and the sound measured by the sound sensor 132 due to factors such as the acoustic characteristics inside the ear, the sound reproduced by the sound output unit 140 will be referred to as reproduced sound, and the sound inside the ear will be referred to as intra-ear sound. Here, we will consider a case where an ideal output sound having flat frequency components from a reference low frequency band (e.g., 100 Hz to 500 Hz), which is a frequency band below a reference frequency (e.g., 880 Hz), to a reference high frequency band (e.g., 1 kHz to 10 kHz), which is a frequency band equal to or higher than the reference frequency, is output from the sound output unit 140 to the ear canal 301, and the sound inside the hole measured by the sound sensor 132 is subjected to frequency analysis.

[0035] In this case, if the body-worn thermometer 100 is worn correctly as shown in Fig. 5, frequency analysis of the sound inside the hole measured by the sound sensor 132 will result in a frequency spectrum 521 consisting of a flat sound pressure level as shown in Fig. 9. On the other hand, if the body-worn thermometer 100 is not worn properly as shown in Fig. 7, frequency analysis of the sound inside the hole measured by the sound sensor 132 will result in a frequency spectrum 522 in which the sound pressure level has deteriorated, especially in the reference low frequency band, as shown in Fig. 10.

[0036] In other words, when a playback sound having a flat frequency component is output from the sound output unit 140, the sound inside the hole measured by the sound sensor 132 is frequency analyzed, and if it is confirmed that the sound pressure level in the reference low frequency band has deteriorated (for example, is below the reference level), it can be determined that the body-worn thermometer 100 is slipping out of place.

[0037] Specifically, as shown in FIG. 11, if the difference between the average sound pressure level LL of the reference low frequency band LF of the frequency spectrum 522 and the average sound pressure level LH ​​of the reference high frequency band HF is equal to or greater than a certain threshold (reference sound pressure level difference), it can be determined that the body-worn thermometer 100 is slipping out of place.

[0038] However, in reality, the frequency spectrum obtained by frequency analysis of the sound inside the hole measured by the sound sensor 132 is affected by the acoustic characteristics of the ear canal 301 and the sound creation (such as emphasizing the low or high frequency range) in the sound output unit 140. Therefore, even if the sound data played back from the electronic device 200 has a flat frequency spectrum 521 as shown in Fig. 9, the frequency spectrum obtained by frequency analysis of the sound inside the hole measured by the sound sensor 132 may not be flat.

[0039] Therefore, when the body-worn thermometer 100 is correctly attached to a standard ear canal 301 and ideal playback sound having frequency components with a flat sound pressure level from the reference low frequency band to the reference high frequency band is played back by the electronic device 200, the frequency spectrum obtained by frequency analysis of the sound inside the hole measured by the sound sensor 132 is recorded in advance (at the time of shipping from the factory, etc.) in the memory unit 220 as a reference frequency spectrum, and this reference frequency spectrum is compared with the frequency spectrum obtained at the time of judgment, thereby improving the accuracy of judgment of misalignment.

[0040] For example, it is assumed that frequency spectrum 531 shown in Fig. 12 is registered in advance in storage unit 220 as a reference frequency spectrum obtained when sound data for determination is played back. Then, it is assumed that when a user wears body-worn thermometer 100 in an ear canal and plays back sound data for determination using electronic device 200, and the sound inside the hole measured by sound sensor 132 is frequency analyzed, a frequency spectrum 522 is obtained in which the sound pressure level in the reference low frequency band is deteriorated, as shown in Fig. 10.

[0041] 13, the difference DL (low-frequency level difference) between the average value RL (first low-frequency level) of the sound pressure level of the reference low frequency band LF of the reference frequency spectrum 531 and the average value LL (second low-frequency level) of the sound pressure level of the reference low frequency band LF of the frequency spectrum 522 is compared with the difference DH (high-frequency level difference) between the average value RH (first high-frequency level) of the sound pressure level of the reference high frequency band HF of the reference frequency spectrum 531 and the average value LH (second high-frequency level) of the sound pressure level of the reference high frequency band HF of the frequency spectrum 522. If DL - DH is equal to or less than the reference sound pressure level difference DR, it can be determined that the body-worn thermometer 100 is worn correctly, and if DL - DH is greater than the reference sound pressure level difference DR, it can be determined that the thermometer is not worn properly.

[0042] It is desirable that the reproduced sound used as sound data for determination has flat frequency components. Examples of such sounds include white noise (sound containing the same sound pressure level across all frequency bands from low frequencies (e.g., 50 Hz) to high frequencies (e.g., 15 kHz)) and sweep sounds (sound whose pitch changes from low frequencies (e.g., 50 Hz) to high frequencies (e.g., 15 kHz) over a period of several to several tens of seconds). However, it is known that even regular music can produce frequency components that are nearly flat if played for a certain period of time (e.g., three minutes), so it is possible to use regular music as simple sound data for determination if played for a certain period of time or longer.

[0043] Because white noise and sweep sounds can be unpleasant to the user, it is preferable to use regular music as sound data when determining whether the headphones are out of place. However, regular music requires a certain amount of time to determine whether the headphones are out of place. In addition, there may be music that does not contain flat frequency components even when played for a certain amount of time.

[0044] Therefore, by storing in advance in the storage unit 220 sound data of music (music for determination) that is guaranteed to contain frequency components with a flat sound pressure level when played for a certain period of time, and periodically playing this specific music to determine whether the thermometer is being worn, it is possible to determine whether the thermometer is being worn without causing too much discomfort to the user. In this case, when the music for determination is played while the body-wearable thermometer 100 is worn properly, a frequency spectrum obtained by frequency analysis of the sound inside the hole measured by the sound sensor 132 is recorded in advance in the storage unit 220 as a reference frequency spectrum, and this reference frequency spectrum is compared with the frequency spectrum obtained during the determination, thereby improving the accuracy of the determination of whether the thermometer is being worn. For example, a short piece of music for determination, such as a sound effect piece played in a short time by a piano or orchestra covering the low to high ranges, can be used.

[0045] To summarize the above, when determining whether the device is being worn out, if you want to do so in a short amount of time, it is best to use white noise or a sweep sound; if you do not want to cause the user too much discomfort, it is best to use the above-mentioned music for determination; and if you do not want to cause the user any discomfort at all, it is best to use any music that the user is listening to.

[0046] The timing for determining whether the device is misaligned can be, for example, as follows. (1) Determine when the body-worn thermometer 100 is worn (determine whether it is worn properly when worn). (2) While the user is listening to music, the system periodically determines whether the music is playing between songs (by determining whether the music is playing between songs, the system prevents the user from feeling uncomfortable). (3) A judgment is made when the temperature acquired by the temperature sensor changes by more than a certain amount (because the temperature change may have occurred due to misalignment of the sensor). (4) A judgment is made when the acceleration obtained by the acceleration sensor reaches a certain value or higher (this is because it is assumed that the user has engaged in strenuous exercise and the device may have slipped off).

[0047] In the first embodiment, the body-worn thermometer 100 and the electronic device 200 cooperate to perform a process for determining whether the body-worn thermometer 100 is misaligned. In this process, the processing unit 110 of the body-worn thermometer 100 performs a process for sequentially transmitting the detection values ​​obtained by the sensor unit 130 to the electronic device 200 via the communication unit 160. Then, the processing unit 210 of the electronic device 200 performs a process for determining whether the body-worn thermometer 100 is misaligned, using the detection values ​​transmitted from the body-worn thermometer 100. Note that the body-worn thermometer 100 and the electronic device 200 have been paired in advance, and are capable of communicating with each other when each is started up, and the body-worn thermometer 100 also functions as an earphone for the electronic device 200.

[0048] First, the on-wear determination process, which is a process for determining whether the body-worn thermometer 100 is misaligned when it is worn, will be described with reference to Fig. 14. When the processing unit 210 determines that the body-worn thermometer 100 has been inserted into the ear canal based on the detection value of the insertion sensor 133 transmitted from the body-worn thermometer 100, execution of the on-wear determination process begins.

[0049] First, the processing unit 210 determines whether the body-worn thermometer 100 has been attached to the ear canal (step S101). Even if the body-worn thermometer 100 is merely brought close to the ear, the processing unit 210 may start executing the attachment determination process based on the detection value of the insertion sensor 133. In this case, the processing unit 210 must wait until the body-worn thermometer 100 is properly attached to the ear canal, and therefore performs the process of step S101. Specifically, the processing unit 210 waits until the detection value of the insertion sensor 133 stabilizes (simply waiting for a few seconds), and then determines whether the body-worn thermometer 100 has been attached to the ear canal based on this detection value. If the body-worn thermometer 100 is not attached (step S101; No), the processing unit 210 returns to step S101.

[0050] When the body-worn thermometer 100 is worn (step S101; Yes), the processing unit 210 plays the determination sound data stored in the storage unit 220 (step S102). Here, the determination sound data may be white noise, a sweep sound, determination music, or the like, and the frequency spectrum obtained upon playback is assumed to be stored in advance in the storage unit 220 as a reference frequency spectrum. The sound data played by the electronic device 200 is played from the sound output unit 140 via the communication units 260 and 160.

[0051] Then, the processing unit 210 performs FFT analysis on the detection value (measurement value) of the sound sensor 132 transmitted from the body-worn thermometer 100, and performs frequency analysis of the sound inside the user's ear canal 301 (sound inside the hole) (step S103).

[0052] Next, the processing unit 210 determines whether or not the degradation of the low frequency band is large based on the frequency spectrum obtained by performing the frequency analysis in step S103 (step S104). Specifically, based on the frequency spectrum obtained by performing the frequency analysis in step S103 and the reference frequency spectrum stored in advance in the storage unit 220, it determines whether or not the difference between the average values ​​of the sound pressure levels of the frequency spectrum in the reference low frequency band (DL) and the average value of the sound pressure levels of the frequency spectrum in the reference high frequency band (DH) is larger than the reference sound pressure level difference (RD).

[0053] In addition, if it can be assumed that the frequency spectrum obtained by playing the judgment sound data is flat, the processing unit 210 may determine whether the difference between the average value of the sound pressure level of the reference high frequency band (LH) and the average value of the sound pressure level of the reference low frequency band (LL) of the frequency spectrum obtained by performing frequency analysis in step S103 is greater than the reference sound pressure level difference (RD) without using the reference frequency spectrum.

[0054] If the degradation in the low frequency band is large (step S104; Yes), the processing unit 210 determines that the body-worn thermometer 100 has shifted out of place, performs alert processing (step S105), and then returns to step S101. The alert processing may include playing a voice announcement (played from the sound output unit 140) to notify the user of the shifted body temperature, outputting vibration from the output unit 240, flashing an LED, outputting an alarm sound, or outputting vibration from another device (such as a smart watch) via the communication unit 260.

[0055] On the other hand, if the degradation in the low frequency band is not large (step S104; No), the processing unit 210 determines that the body-worn thermometer 100 is worn correctly, and ends the wearing determination process.

[0056] By performing the above-described wearing determination process, when the user wears the body-worn thermometer 100 on their ear, the processing unit 210 can determine whether the thermometer is worn correctly and whether it has slipped out of place. In addition, by using white noise, a sweep sound, or music for determination as the sound data for determination, it is possible to determine whether the thermometer has slipped out of place in a relatively short time.

[0057] Next, an inter-song determination process for periodically determining whether the device is being worn between songs while the user is listening to music on the electronic device 200, or determining whether the device is being worn if there is a possibility of misalignment based on values ​​from various sensors, will be described with reference to Fig. 15. This inter-song determination process starts when the above-described on-wear determination process ends. Also, in the electronic device 200, a thread for playing music (music playback thread) is assumed to be running in parallel with other threads.

[0058] First, the processing unit 210 determines whether the song being played on the electronic device 200 has finished (step S201). The processing unit 210 can make this determination by, for example, performing inter-thread communication with the music playback thread. If music is being played (step S201; No), the process returns to step S201.

[0059] When the song ends (step S201; Yes), the processing unit 210 determines whether a reference time (for example, one hour) has passed since the previous misalignment determination process (step S210, which will be described later) was performed (step S202). If the reference time has passed (step S202; Yes), the processing unit 210 proceeds to step S206 to periodically perform misalignment determination.

[0060] If the reference time has not yet elapsed (step S202; No), the processing unit 210 determines whether the acceleration is greater than the reference acceleration based on the detection value of the acceleration sensor 134 transmitted from the body-worn thermometer 100 (step S203). If the acceleration is greater than the reference acceleration (step S203; Yes), the user may be engaged in strenuous exercise, and the body-worn thermometer 100 may become misaligned, so the processing unit 210 proceeds to step S206 to determine whether the body-worn thermometer 100 has become misaligned.

[0061] If the acceleration is equal to or less than the reference acceleration (step S203; No), the processing unit 210 determines whether the temperature change is greater than a reference temperature change based on the detection value of the temperature sensor 131 transmitted from the body-worn thermometer 100 (step S204). Note that since the detection value of the temperature sensor 131 is a temperature, the processing unit 210 calculates the temperature change by recording temperature log data in the storage unit 220. If the temperature change is greater than the reference temperature change (step S204; Yes), there is a possibility that the body-worn thermometer 100 has shifted out of place, and so the processing unit 210 proceeds to step S206 to determine whether the body-worn thermometer 100 has shifted out of place.

[0062] If the temperature change is equal to or less than the reference temperature change (step S204; No), the processing unit 210 instructs the music playback thread to play the next song (step S205), and returns to step S201.

[0063] In step S206, processing unit 210 instructs the music playback thread to play determination music stored in storage unit 220 as determination sound data. The determination music is used as determination sound data here in order to avoid giving the user a sense of discomfort. It is also assumed that the frequency spectrum obtained when this determination music is played is stored in advance in storage unit 220 as a reference frequency spectrum. The determination music played by electronic device 200 is played from sound output unit 140 via communication units 260 and 160.

[0064] Next, the processing unit 210 performs FFT analysis on the measurement values ​​of the sound sensor 132 transmitted from the body-worn thermometer 100 for a reference time (for example, 5 seconds), performs frequency analysis of the sound inside the user's ear canal 301 (sound inside the hole), and stores the obtained frequency spectrum in the storage unit 220 (step S207). Then, the processing unit 210 determines whether step S207 has been repeated a reference number of times (step S208). If the number of repetitions is less than the reference number of times (step S208; No), the process returns to step S207.

[0065] After repeating the process the reference number of times (step S208; Yes), the processing unit 210 averages the frequency spectra accumulated in step S207 (step S209). Then, based on the averaged frequency spectrum obtained in step S209, the processing unit 210 determines whether degradation in the low frequency band is significant (step S210). Specifically, based on the averaged frequency spectrum obtained in step S209 and a reference frequency spectrum previously stored in the storage unit 220, it determines whether the difference between the average sound pressure levels of the frequency spectra in the reference low frequency band (DL) and the average sound pressure levels of the frequency spectra in the reference high frequency band (DH) is greater than the reference sound pressure level difference (RD).

[0066] If the degradation in the low frequency band is large (step S210; Yes), the processing unit 210 determines that the body-worn thermometer 100 is out of place, performs alert processing (step S211), and then proceeds to step S212. The alert processing is the same as the processing in step S105 described above.

[0067] On the other hand, if the degradation in the low frequency band is not significant (step S210; No), the processing unit 210 determines whether the playback of the determination music that started in step S206 has finished (step S212). If the playback of the determination music is still in progress (step S212; No), the processing returns to step S207.

[0068] When the playback of the music for determination has finished (step S212; Yes), the processing unit 210 proceeds to step S205 and instructs the music playback thread to play the next song.

[0069] By performing the above-described inter-song determination process, the electronic device 200 can periodically determine whether the headphones have slipped out of place between songs while the user is playing music. In addition, by using determination music as the determination sound data, it is possible to determine whether the headphones have slipped out of place in a relatively short time without causing the user any discomfort.

[0070] (Modification of the first embodiment) In the above-described inter-song determination process, by using determination music, it is possible to determine whether the headphones are misfitting without causing the user any discomfort. However, even if determination music is used, some users may find it uncomfortable. Therefore, a modified example of the first embodiment will be described, in which the headphones are misfitted using music that the user normally listens to.

[0071] In this case, since the processing unit 210 must determine whether the earphones are being worn out using an arbitrary song, it is not possible to pre-register a reference frequency spectrum in the storage unit 220. For this reason, the processing unit 210 performs frequency analysis on the sound data of the currently played song itself using FFT analysis or the like to obtain a frequency spectrum, which is then used as the reference frequency spectrum.

[0072] Furthermore, a reference frequency spectrum that takes into account the acoustic characteristics of the ear canal 301 and the influence of sound creation in the sound output unit 140 may be calculated each time a song is played. To do this, first, with the body-worn thermometer 100 correctly attached to a standard ear canal 301, playback sound having a flat frequency spectrum 521 (original frequency spectrum) as shown in Fig. 16 is played from the electronic device 200, and the sound inside the hole measured by the sound sensor 132 is frequency analyzed to obtain a playback frequency spectrum (for example, frequency spectrum 531 shown in Fig. 16). Then, this original frequency spectrum and playback frequency spectrum are recorded in advance (such as at the time of shipping from the factory) in the storage unit 220.

[0073] Then, when playing any song, the processing unit 210 performs frequency analysis on the sound data of the song being played using FFT analysis or the like to obtain a frequency spectrum (original frequency spectrum during playback), and calculates for each frequency band "sound pressure level of original frequency spectrum during playback × sound pressure level of frequency spectrum at playback / sound pressure level of original frequency spectrum" and uses the frequency spectrum obtained as the reference frequency spectrum.

[0074] In this way, the reference frequency spectrum changes depending on the song being played, but since the reference frequency spectrum is calculated for each song that has been played, by storing the calculated reference frequency spectrum together with the song ID (Identification) in the storage unit 220, the reference frequency spectrum stored in the storage unit 220 can be used when the same song is played back thereafter. Note that any ID can be used as the song ID as long as it can uniquely specify each song.

[0075] 17 will be used to describe a desired song use determination process that periodically determines whether the device is being worn between songs while the user is playing songs on the electronic device 200, and determines whether the device is being worn if there is a possibility of misalignment based on values ​​from various sensors. Execution of this desired song use determination process begins when the above-described on-wear determination process ends. Except for the fact that execution of the desired song use determination process begins when the on-wear determination process ends in the electronic device 200, the wearing misalignment detection system 1000 according to the variation of the first embodiment is the same as the wearing misalignment detection system 1000 according to the first embodiment.

[0076] First, the processing unit 210 instructs the music playback thread to start playing a song (step S301). Since the music playback thread is executed in parallel with other threads, this allows playback of any song that the user wishes to play.

[0077] Then, the processing unit 210 determines whether a reference time (for example, one hour) has passed since the previous misplacement determination process (step S310, which will be described later) was performed (step S302). If the reference time has passed (step S302; Yes), the processing unit 210 proceeds to step S307 to periodically perform misplacement determination.

[0078] If the reference time has not yet elapsed (step S302; No), the processing unit 210 determines whether the acceleration is greater than a reference acceleration based on the detection value of the acceleration sensor 134 transmitted from the body-worn thermometer 100 (step S303). If the acceleration is greater than the reference acceleration (step S303; Yes), the user may be engaged in strenuous exercise, and the body-worn thermometer 100 may become misaligned, so the processing unit 210 proceeds to step S307 to determine whether the body-worn thermometer 100 has become misaligned.

[0079] If the acceleration is equal to or less than the reference acceleration (step S303; No), the processing unit 210 determines whether the temperature change is greater than a reference temperature change based on the detection value of the temperature sensor 131 transmitted from the body-worn thermometer 100 (step S304). Note that since the detection value of the temperature sensor 131 is a temperature, the processing unit 210 calculates the temperature change by recording temperature log data in the storage unit 220. If the temperature change is greater than the reference temperature change (step S304; Yes), there is a possibility that the body-worn thermometer 100 has shifted out of place, and so the processing unit 210 proceeds to step S307 to determine whether the body-worn thermometer 100 has shifted out of place.

[0080] If the temperature change is equal to or less than the reference temperature change (step S304; No), the processing unit 210 determines whether the song being played in the music playback thread has finished (step S305), and if it has not finished (step S305; No), the processing unit 210 returns to step S305. If it has finished (step S305; Yes), the processing unit 210 instructs the music playback thread to play the next song (step S306), and returns to step S302.

[0081] In step S307, the processing unit 210 checks whether the reference frequency spectrum of the song being played in the music playback thread has been saved in the storage unit 220 (step S307). If the reference frequency spectrum has been saved, it is not necessary to calculate the reference frequency spectrum for this misalignment determination, and it can be read from the storage unit 220.

[0082] Next, the processing unit 210 performs FFT analysis on the measurement values ​​of the sound sensor 132 transmitted from the body-worn thermometer 100 for a reference time (for example, 5 seconds), performs frequency analysis of the sound in the user's ear canal 301, and stores the obtained frequency spectrum in the storage unit 220 (step S308). Note that if it is confirmed in step S307 that the reference frequency spectrum of the played song has not already been saved in the storage unit 220, the processing unit 210 also performs FFT analysis on the sound data of the song being played in the music playback thread for a reference time (for example, 5 seconds), performs frequency analysis, and stores the obtained frequency spectrum in the storage unit 220 as data for the reference frequency spectrum.

[0083] It should be noted that, when the above-mentioned original frequency spectrum and frequency spectrum during playback are recorded in advance in the storage unit 220, the processing unit 210 calculates, for each frequency band, the frequency spectrum of the sound data itself (original frequency spectrum during playback), not the frequency spectrum of the sound data itself, and stores the frequency spectrum obtained by calculating "sound pressure level of original frequency spectrum during playback × sound pressure level of frequency spectrum during playback / sound pressure level of original frequency spectrum" in the storage unit 220 as data for the reference frequency spectrum.

[0084] Then, the processing unit 210 determines whether or not step S308 has been repeated a reference number of times (step S309). If the number of repetitions is less than the reference number of times (step S309; ​​No), the processing returns to step S308.

[0085] After the reference number of repetitions (step S309; ​​Yes), the processing unit 210 averages the frequency spectra accumulated in step S308 (step S310). If data for a reference frequency spectrum has also been accumulated in step S308, the processing unit 210 also averages the accumulated data for the reference frequency spectrum to calculate the reference frequency spectrum.

[0086] Then, based on the averaged frequency spectrum obtained in step S310, processing unit 210 determines whether degradation in the low frequency band is significant (step S311). Specifically, based on the averaged frequency spectrum calculated in step S310 and the reference frequency spectrum calculated in step S310 (the reference frequency spectrum stored in storage unit 220 if it has been confirmed that it has been stored in step S307), processing unit 210 determines whether the difference between the average values ​​of the sound pressure levels of the frequency spectra in the reference low frequency band (DL) and the average value of the sound pressure levels of the frequency spectra in the reference high frequency band (DH) is greater than the reference sound pressure level difference (RD).

[0087] If the degradation in the low frequency band is large (step S311; Yes), the processing unit 210 determines that the body-worn thermometer 100 is out of place, performs alert processing (step S312), and then proceeds to step S313. The alert processing is the same as the processing in step S105 described above.

[0088] On the other hand, if the degradation of the low frequency band is not large (step S311; No), the processing unit 210 determines whether the playback of the song that started to be played in step S301 has finished (step S313). If the song is still being played (step S313; No), the processing returns to step S308.

[0089] When the playback of the song is completed (step S313; Yes), if it is confirmed in step S307 that the reference frequency spectrum has not been saved, the processing unit 210 saves the reference frequency spectrum calculated in step S310 together with the ID of the song that has been played up to that point in the storage unit 220 (step S314).Then, the processing unit 210 proceeds to step S306 and instructs the music playback thread to play the next song.

[0090] The above-described process for determining whether the headphones are in use can periodically be used to determine whether the headphones are in use between songs while the user is playing a song of their choice. Furthermore, because this process can use any song the user is listening to, it is possible to determine whether the headphones are in use without causing any discomfort to the user.

[0091] (Embodiment 2) In the above-described first embodiment, the processing unit 210 of the electronic device 200 executes the on-wear determination process, the interval determination process, and the desired song use determination process, but these processes may also be executed by the processing unit 110 of the body-worn thermometer 100. Such a second embodiment will now be described.

[0092] Like the wearing misalignment detection system according to embodiment 1, the wearing misalignment detection system according to embodiment 2 also includes a body-worn thermometer 100 and an electronic device 200 such as a smartphone, and the functional configurations of the body-worn thermometer 100 and the electronic device 200 are as shown in Figures 2 and 3, respectively. In the wearing misalignment detection system according to embodiment 2, the body-worn thermometer 100 and the electronic device 200 are connected and communicate with each other via Bluetooth (registered trademark) or the like, and when the user wears the body-worn thermometer 100 in their ear, they can listen to music played on the electronic device 200 and measure their body temperature.

[0093] However, the processing unit 110 of the body-worn thermometer 100 according to the second embodiment is capable of specifying the ID of a song and instructing the electronic device 200 to play that song, and the processing unit 110 is also capable of receiving the ID of the song currently being played from the electronic device 200 and receiving information indicating that the song has finished playing (song end signal).

[0094] In addition, the processing unit 110 performs processing to transmit the temperature acquired by the temperature sensor 131, among the detection values ​​acquired by the sensor unit 130, to the electronic device 200, but does not need to transmit other detection values ​​(detection values ​​by the sound sensor 132, insertion sensor 133, and acceleration sensor 134) to the electronic device 200.

[0095] Furthermore, the storage unit 120 stores white noise, sweep sounds, music for determination, etc. as sound data for determination, and the frequency spectrum obtained when the sound data for determination is played back is also stored in the storage unit 120 as a reference frequency spectrum. However, the sound data for determination stored in the storage unit 220 of the electronic device 200 may be played back by specifying an ID of the sound data from the processing unit 110. Furthermore, the reference frequency spectrum may also be obtained by the processing unit 110 via the communication units 260 and 160 and used from the storage unit 220 of the electronic device 200.

[0096] In the second embodiment, similarly to the first embodiment, the body-worn thermometer 100 and the electronic device 200 cooperate to perform the process of determining whether the thermometer is misaligned, but basically, the processing unit 110 of the body-worn thermometer 100 performs the main processing, and the processing unit 210 of the electronic device 200 performs processing such as playing the song instructed by the body-worn thermometer 100 and sending a signal indicating the end of the song (song end signal) to the body-worn thermometer 100. Note that the body-worn thermometer 100 and the electronic device 200 have been paired in advance, and when each is started up, they become capable of communicating with each other, and the body-worn thermometer 100 also functions as an earphone for the electronic device 200.

[0097] In the second embodiment, the on-wear determination process, which is a process for determining whether the body-worn thermometer 100 has shifted when it is worn, will be described with reference to Fig. 14. When the processing unit 110 determines that the body-worn thermometer 100 has been inserted into the ear canal based on the detection value of the insertion sensor 133 transmitted from the body-worn thermometer 100, execution of the on-wear determination process is started.

[0098] First, the processing unit 110 determines whether the body-worn thermometer 100 has been attached to the ear canal (step S101). Even if the body-worn thermometer 100 is merely brought close to the ear, the processing unit 110 may start executing the attachment determination process based on the detection value of the insertion sensor 133. In this case, the processing unit 110 must wait until the body-worn thermometer 100 is properly attached to the ear canal, and therefore performs the process of step S101. Specifically, the processing unit 110 waits until the detection value of the insertion sensor 133 stabilizes (simply waiting for a few seconds) and then determines whether the body-worn thermometer 100 has been attached to the ear canal based on this detection value. If the body-worn thermometer 100 is not attached (step S101; No), the processing unit 110 returns to step S101.

[0099] When the body-worn thermometer 100 is worn (step S101; Yes), the processing unit 110 plays the sound data for determination stored in the storage unit 120 (step S102). As described above, the sound data for determination may be stored in the storage unit 120 (white noise, sweep sound, music for determination, etc.), or the processing unit 110 may designate an ID and play the sound data stored in the storage unit 220 of the electronic device 200. When the sound data stored in the storage unit 120 is used, the processing unit 110 decodes the sound data and plays it from the sound output unit 140. When the sound data stored in the storage unit 220 of the electronic device 200 is used, the sound data played by the electronic device 200 is played from the sound output unit 140 via the communication units 260 and 160.

[0100] Then, the processing unit 110 performs FFT analysis on the value measured by the sound sensor 132, and performs frequency analysis on the sound inside the hole in the user's ear canal 301 (step S103).

[0101] Next, the processing unit 110 determines whether or not the degradation of the low frequency band is large based on the frequency spectrum obtained by performing the frequency analysis in step S103 (step S104). Specifically, based on the frequency spectrum obtained by performing the frequency analysis in step S103 and a reference frequency spectrum previously stored in the storage unit 120 or 220, it determines whether or not the difference between the average values ​​of the sound pressure levels of the frequency spectrum in the reference low frequency band (DL) and the average value of the sound pressure levels of the frequency spectrum in the reference high frequency band (DH) is larger than the reference sound pressure level difference (RD).

[0102] As in embodiment 1, if it can be assumed that the frequency spectrum obtained by playing the judgment sound data is flat, the processing unit 110 may determine whether the difference between the average value (LH) of the sound pressure level in the reference high frequency band and the average value (LL) of the sound pressure level in the reference low frequency band of the frequency spectrum obtained by performing frequency analysis in step S103 is greater than the reference sound pressure level difference (RD), without using the reference frequency spectrum.

[0103] If the degradation in the low frequency band is large (step S104; Yes), the processing unit 110 determines that the body-worn thermometer 100 has shifted out of place, performs alert processing (step S105), and then returns to step S101. The alert processing may involve playing a voice announcement informing the user of the shifted body thermometer from the sound output unit 140, causing the output unit 240 of the electronic device 200 to output vibration, blink an LED, or output an alarm sound via the communication unit 160 and the communication unit 260, or outputting vibration or the like from another device (such as a smart watch) via the communication unit 160.

[0104] On the other hand, if the degradation in the low frequency band is not large (step S104; No), the processing unit 110 determines that the body-worn thermometer 100 is worn correctly, and ends the wearing determination process.

[0105] By performing the above-described wearing determination process, when the user wears the body-worn thermometer 100 on the ear, the processing unit 110 can determine whether the thermometer is worn correctly and whether it has slipped out of place. In addition, by using white noise, a sweep sound, or music for determination as the sound data for determination, it is possible to determine whether the thermometer has slipped out of place in a relatively short time.

[0106] As can be seen from the above explanation, the on-wear determination process according to embodiment 2 is the same as the on-wear determination process according to embodiment 1, except that the processing main body is changed from processing unit 210 to processing unit 110, data from sensor unit 130 can be acquired directly by processing unit 110 (without going through communication unit 160), and playback instructions, etc., given by processing unit 210 to the music playback thread are replaced by playback instructions, etc., given by processing unit 110 to electronic device 200.

[0107] In the second embodiment, when a user is listening to music on the electronic device 200, the inter-song determination process, which periodically determines whether the electronic device is being worn between songs or determines whether the electronic device is being worn if there is a possibility of misalignment based on values ​​from various sensors, is similar to the inter-song determination process according to the first embodiment, except that the processing entity is changed from the processing unit 210 to the processing unit 110, data from the sensor unit 130 can be acquired directly by the processing unit 110 (without going through the communication unit 160), and a playback instruction or the like given by the processing unit 210 to the music playback thread is replaced by a playback instruction or the like given by the processing unit 110 to the electronic device 200. Therefore, a detailed description will be omitted, but differences from the first embodiment will be mainly described with reference to FIG. 15. Note that this inter-song determination process starts to be executed when the on-wear determination process according to the second embodiment described above ends.

[0108] In step S201, the processing unit 110 determines whether the song being played on the electronic device 200 has ended by acquiring information (song end signal) indicating whether the song being played on the electronic device 200 has ended from the electronic device 200 via the communication unit 160. In step S201, the processing unit 110 also functions as a song end acquisition unit.

[0109] In step S203, processing unit 110 determines whether the acceleration is greater than a reference acceleration based on the detection value of acceleration sensor 134, and in step S204, processing unit 110 determines whether the temperature change is greater than a reference temperature change based on the detection value of temperature sensor 131. At this time, processing unit 110 calculates the temperature change by recording temperature log data in storage unit 120.

[0110] Furthermore, in step S205, the processing unit 110 instructs the electronic device 200 to play the next song, and the process returns to step S201. By the process of step S205, the electronic device 200 starts playing the next song, and the processing unit 110 plays the sound data of the song received via the communication unit 160 in the sound output unit 140. At this time, the communication unit 160 functions as a sound data acquisition unit.

[0111] Furthermore, in step S206, the processing unit 110 starts playing the music for determination stored in the storage unit 120 from the sound output unit 140. As described above, the frequency spectrum obtained when this music for determination is played is stored in advance in the storage unit 120 as a reference frequency spectrum.

[0112] Furthermore, in step S207, the processing unit 110 performs FFT analysis on the measurement values ​​of the sound sensor 132 for a reference time (for example, 5 seconds), performs frequency analysis of the sound inside the hole in the user's ear canal 301, and stores the obtained frequency spectrum in the memory unit 120.

[0113] Then, in step S209, the processing unit 110 averages the frequency spectrum accumulated in step S207. Furthermore, in step S210, the processing unit 110 determines whether or not degradation in the low frequency band is significant, based on the averaged frequency spectrum obtained in step S209.

[0114] Also, in step S212, the processing unit 110 determines whether the playback of the judgment music that started to be played in step S206 has finished, and if the playback of the judgment music has finished (step S212; Yes), the processing unit 110 proceeds to step S205 and instructs the electronic device 200 to play the next song.

[0115] By performing the above-described between-song determination process, the body-worn thermometer 100 can periodically determine whether the thermometer has slipped out of place between songs while the user is playing music. In addition, by using determination music as the determination sound data, it is possible to determine whether the thermometer has slipped out of place in a relatively short time without causing the user any discomfort.

[0116] (Modification of the second embodiment) In the second embodiment, as a variant of the second embodiment, similar to the variant of the first embodiment, it is possible to perform an arbitrary song use determination process that determines whether the device is out of place using a song that the user normally listens to.

[0117] The arbitrary music use determination process according to the modified example of the second embodiment is also similar to the arbitrary music use determination process according to the modified example of the first embodiment, except that the processing entity is changed from processing unit 210 to processing unit 110, data from sensor unit 130 can be acquired directly by processing unit 110 (without going through communication unit 160), and playback instructions and the like given by processing unit 210 to the music playback thread are replaced by playback instructions and the like given by processing unit 110 to electronic device 200. Therefore, a detailed description will be omitted, but differences from the modified example of the first embodiment will be mainly described with reference to Fig. 17. Note that this arbitrary music use determination process starts execution when the on-wear determination process according to the second embodiment described above is completed.

[0118] In step S301, processing unit 110 instructs electronic device 200 to start playing a song. The user may be able to input which song to play in step S301 from operation unit 150. This allows any song that the user wishes to play to be played.

[0119] In addition, in step S303, the processing unit 110 determines whether the acceleration is greater than a reference acceleration based on the detection value of the acceleration sensor 134, and in step S304, the processing unit 110 determines whether the temperature change is greater than a reference temperature change based on the detection value of the temperature sensor 131.

[0120] Furthermore, in step S305, the processing unit 110 determines whether the song being played on the electronic device 200 has ended by obtaining information as to whether the song being played on the electronic device 200 has ended from the electronic device 200 via the communication unit 160. Then, in step S306, the processing unit 210 instructs the electronic device 200 to play the next song, and the process returns to step S302.

[0121] In step S307, the processing unit 110 checks whether the reference frequency spectrum of the song being played on the electronic device 200 has been stored in the storage unit 120. This can be done by the processing unit 110 acquiring the ID of the song currently being played from the electronic device 200.

[0122] Furthermore, in step S308, the processing unit 110 performs FFT analysis on the measurement values ​​of the sound sensor 132 for a reference time (for example, 5 seconds), performs frequency analysis of the sound inside the hole in the user's ear canal 301, and stores the obtained frequency spectrum in the storage unit 120. Note that if it is confirmed in step S307 that the reference frequency spectrum of the song being played has not already been saved in the storage unit 120, the processing unit 110 also performs FFT analysis on the sound data of the song being played on the electronic device 200 for a reference time (for example, 5 seconds), and stores the obtained frequency spectrum in the storage unit 120 as data for the reference frequency spectrum.

[0123] It should be noted that, in the case where the above-mentioned original frequency spectrum and frequency spectrum during playback are recorded in advance in the storage unit 120, the processing unit 110 calculates, for each frequency band, the frequency spectrum of the sound data itself (original frequency spectrum during playback), not the frequency spectrum of the sound data itself, and stores the frequency spectrum obtained by calculating "sound pressure level of original frequency spectrum during playback × sound pressure level of frequency spectrum during playback / sound pressure level of original frequency spectrum" in the storage unit 120 as data for the reference frequency spectrum.

[0124] Then, in step S310, processing unit 110 averages the frequency spectra accumulated in step S308. If data for a reference frequency spectrum has also been accumulated in step S308, processing unit 110 also averages the accumulated data for the reference frequency spectrum to calculate the reference frequency spectrum.

[0125] Then, in step S311, the processing unit 110 determines whether or not the degradation in the low frequency band is large, based on the averaged frequency spectrum obtained in step S310.

[0126] Furthermore, in step S314, if it is confirmed in step S307 that the reference frequency spectrum has not been saved, the processing unit 110 saves the reference frequency spectrum calculated in step S310 together with the ID of the song that has been played up to that point in the storage unit 120. Then, the processing unit 110 proceeds to step S306 and instructs the electronic device 200 to play the next song.

[0127] By the above-described process for determining whether the user is using a desired song, the body-worn thermometer 100 can periodically determine whether the thermometer is slipping out of place between songs while the user is playing a desired song. Furthermore, because this process can use any song the user is listening to, it is possible to determine whether the thermometer is slipping out of place without causing any discomfort to the user.

[0128] (Other variations) The division of roles between processing unit 110 and processing unit 210 in the above-described processes is not limited to the division of roles in the above-described embodiments 1 and 2, and can be freely changed. Generally, processing unit 210 is often equipped with a processor that is faster than processing unit 110, so that, for example, in embodiment 2, frequency analysis may be performed by processing unit 210 of electronic device 200.

[0129] Furthermore, in the above-described embodiments and variations, the body-worn thermometer 100 has been described as being connected wirelessly to the electronic device 200, but the body-worn thermometer 100 and the electronic device 200 may also be connected by wire.

[0130] Furthermore, in the above-described embodiment and modified examples, the body-worn thermometer 100 has been described as a thermometer worn in the ear, but the thermometer may be worn in other places, such as the mouth, nostrils, or rectum. In either case, the body-worn thermometer 100 acquires the temperature of the user's (wearer's) body orifice (ear hole, mouth, nostril, rectum, etc.) and can determine whether the thermometer is properly attached to the orifice using a similar mechanism. Furthermore, if the thermometer is worn in a place other than the ear hole, any sound can be used without causing discomfort or annoyance to the user, so that a white noise or sweep sound can be played at any timing to determine whether the thermometer is properly attached.

[0131] Furthermore, the body-worn thermometer 100 may increase or decrease the number of sensors included in the sensor unit 130 as needed, and the processing unit 110 may use any information obtained from the sensor unit 130 to improve the accuracy of determining whether the thermometer is being worn out.

[0132] The body-worn thermometer 100 can also be realized by a computer such as a wearable computer that can be worn on the user's body, and the electronic device 200 can also be realized by a computer such as a smartphone, tablet, or PC that can acquire detection values ​​detected by sensors worn on the user's body. Specifically, in the above embodiment, the program executed by the processing unit 110 of the body-worn thermometer 100 is pre-stored in the storage unit 120, and the program executed by the processing unit 210 of the electronic device 200 is pre-stored in the storage unit 220. However, the program may be stored and distributed on a computer-readable recording medium such as a flexible disk, a CD-ROM (Compact Disc Read Only Memory), a DVD (Digital Versatile Disc), an MO (Magneto-Optical disc), a memory card, or a USB memory, and the program may be read and installed on a computer to configure a computer that can execute each of the above-mentioned processes.

[0133] Furthermore, the program may be superimposed on a carrier wave and applied via a communication medium such as the Internet. For example, the program may be posted and distributed on a bulletin board system (BBS) on a communication network. The program may then be started and executed under the control of an operating system (OS) in the same way as other application programs, thereby enabling the above-described processes to be performed.

[0134] Furthermore, the processing unit 110 and the processing unit 210 may be configured by any single processor such as a single processor, a multiprocessor, or a multi-core processor, or may be configured by combining any of these processors with a processing circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field-Programmable Gate Array).

[0135] While the preferred embodiments of the present invention have been described above, the present invention is not limited to such specific embodiments, and includes the inventions set forth in the claims and their equivalents. The inventions set forth in the original claims of this application are set forth below.

[0136] (Appendix 1) an insertion section that has a temperature acquisition section that acquires the temperature of a hole in the wearer's body and is inserted into the hole and worn; a sound output unit that outputs sound to the hole; a sound measuring unit for measuring an internal hole sound, which is a sound inside the hole; a processing unit that determines whether or not the attachment position of the insertion unit is misaligned based on the sound inside the hole measured by the sound measuring unit while the sound output unit is outputting sound; A body-worn thermometer comprising:

[0137] (Appendix 2) The processing unit performing a frequency analysis of the sound inside the hole to determine whether the attachment position of the insertion part is misaligned; 1. A body-worn thermometer as described in Appendix 1.

[0138] (Appendix 3) The processing unit If the level of the frequency component of the sound inside the hole that is less than the reference frequency is less than the reference level, it is determined that the attachment position of the insertion part is misaligned. A body-worn thermometer as described in Appendix 2.

[0139] (Appendix 4) The processing unit a sound output unit that reproduces sound data for determination, which is used to determine whether the attachment position of the insertion unit is misaligned, and which is data of white noise, a sweep sound, or music including frequency components of a reference low frequency band that is a frequency band below the reference frequency and a reference high frequency band that is a frequency band equal to or higher than the reference frequency; A body-worn thermometer as described in Appendix 3.

[0140] (Appendix 5) The processing unit If a reference time or more has elapsed since the previous determination of whether the insertion portion is misaligned, The sound output unit reproduces the determination sound data, and determines whether the insertion unit is misaligned. A body-worn thermometer as described in Appendix 4.

[0141] (Appendix 6) The processing unit If the temperature change acquired by the temperature acquisition unit is greater than the reference temperature change, The sound output unit reproduces the determination sound data, and determines whether the insertion unit is misaligned. 6. A body-worn thermometer as described in appendix 4 or 5.

[0142] (Appendix 7) an insertion detection unit that detects that the insertion unit is inserted into the hole; The processing unit When the insertion detection unit detects that the insertion unit is inserted into the hole, The sound output unit reproduces the determination sound data, and determines whether the insertion unit is misaligned. 7. The body-worn thermometer of any one of clauses 4 to 6.

[0143] (Appendix 8) further comprising an acceleration detection unit for detecting acceleration; The processing unit If the acceleration detected by the acceleration detection unit is greater than the reference acceleration, The sound output unit reproduces the determination sound data, and determines whether the insertion unit is misaligned. 8. The body-worn thermometer of any one of clauses 4 to 7.

[0144] (Appendix 9) a sound data acquisition unit that acquires sound data of a song to be played from the sound output unit; a song end acquisition unit that acquires a song end signal indicating that playback of the song of the sound data acquired by the sound data acquisition unit has ended, The processing unit After the song end acquisition unit acquires the song end signal, the sound output unit reproduces the determination sound data, and determines whether the attachment position of the insertion unit is misaligned. 9. The body-worn thermometer of any one of clauses 4 to 8.

[0145] (Appendix 10) The processing unit The sound data acquired by the sound data acquisition unit is reproduced by the sound output unit; acquiring a first low frequency level, which is the sound pressure level of the reference low frequency band, and a first high frequency level, which is the level of the reference high frequency band, from among the frequency components of the sound data; Among the frequency components of the sound inside the hole measured by the sound measurement unit, a second low-frequency level, which is the level of the reference low-frequency band, and a second high-frequency level, which is the level of the reference high-frequency band, are acquired, calculating a low frequency level difference that is a difference between the first low frequency level and the second low frequency level, and a high frequency level difference that is a difference between the first high frequency level and the second high frequency level; If the difference between the high-frequency level difference and the low-frequency level difference is greater than a reference sound pressure level difference, it is determined that the attachment position of the insertion part is misaligned. 9. A body-worn thermometer as described in Appendix 9.

[0146] (Appendix 11) the acquired first low frequency level and first high frequency level are recorded in a storage unit after the song end acquisition unit acquires the song end signal, and the next time the same song is played from the sound output unit and a determination is made as to whether or not the attachment position of the insertion unit has shifted, the recorded first low frequency level and first high frequency level are used. 11. A body-worn thermometer as described in Clause 10.

[0147] (Appendix 12) The processing unit If it is determined that the insertion portion is misaligned, the sound output unit outputs a signal informing the wearer that the insertion portion is misaligned. 12. The body-worn thermometer of any one of claims 1 to 11.

[0148] (Appendix 13) Further comprising a communication unit that communicates with the electronic device; The processing unit If it is determined that the insertion unit is misaligned, a signal notifying the electronic device that the insertion unit is misaligned is transmitted via the communication unit. 13. A body-worn thermometer according to any one of clauses 1 to 12.

[0149] (Appendix 14) The body orifice is an ear canal. 14. The body-worn thermometer of any one of clauses 1 to 13.

[0150] (Appendix 15) a communication unit that communicates with a body-worn thermometer that includes a sound output unit that outputs sound to a hole in the wearer's body and a sound measurement unit that measures sound inside the hole; a processing unit; Equipped with The processing unit transmitting sound data to the body-worn thermometer via the communication unit to determine whether the body-worn thermometer is misaligned; determining whether the wearing position of the body-wearable thermometer is misaligned based on the sound inside the hole measured by the sound measuring unit while the sound output unit is outputting sound based on the sound data; electronic equipment.

[0151] (Appendix 16) It outputs sound to the holes in the wearer's body, measuring an internal hole sound that is a sound inside the hole; determining whether or not the attachment position is misaligned based on the sound inside the hole measured while the sound is being output; Method for detecting misalignment.

[0152] (Appendix 17) On the computer, It outputs sound to the holes in the wearer's body, measuring an internal hole sound that is a sound inside the hole; determining whether or not the attachment position is misaligned based on the sound inside the hole measured while the sound is being output; A program that executes a process. [Explanation of symbols]

[0153] 100...body-worn thermometer, 101...earpiece, 110, 210...processing unit, 120, 220...memory unit, 130...sensor unit, 131...temperature sensor, 132...sound sensor, 133...insertion sensor, 134...acceleration sensor, 140...sound output unit, 150, 250...operation unit, 160, 260...communication unit, 200...electronic device, 230...display unit, 240...output unit, 300...ear, 301...ear canal, 302...eardrum, 310...gap, 511, 512...temperature curve, 521, 522, 531...frequency spectrum, 1000...wearing displacement detection system

Claims

1. an insertion section that has a temperature acquisition section that acquires the temperature of a hole in the wearer's body and is inserted into the hole and worn; a sound output unit that outputs sound to the hole; a sound measuring unit for measuring an internal hole sound, which is a sound inside the hole; a processing unit that determines whether or not the attachment position of the insertion unit is misaligned based on whether or not the level of a frequency component less than a reference frequency of the sound inside the hole measured by the sound measurement unit while the sound output unit is outputting sound is less than a reference level; and Equipped with The processing unit If the temperature change acquired by the temperature acquisition unit is greater than the reference temperature change, A body-worn thermometer that determines whether the insertion part is misaligned by playing determination sound data from the sound output unit to determine whether the insertion part is misaligned.

2. An insertion part having a temperature acquisition part for acquiring the temperature of a hole in the wearer's body, the insertion part being inserted into the hole and worn; a sound output unit that outputs sound to the hole; a sound measuring unit for measuring an internal hole sound, which is a sound inside the hole; a processing unit that determines whether or not the attachment position of the insertion unit is misaligned based on whether or not the level of a frequency component less than a reference frequency of the sound inside the hole measured by the sound measurement unit while the sound output unit is outputting sound is less than a reference level; and an insertion detection unit that detects that the insertion unit is inserted into the hole; Equipped with The processing unit When the insertion detection unit detects that the insertion unit is inserted into the hole, A body-worn thermometer that determines whether the insertion part is misaligned by playing determination sound data from the sound output unit to determine whether the insertion part is misaligned.

3. An insertion part having a temperature acquisition part for acquiring the temperature of a hole in the wearer's body, the insertion part being inserted into the hole and worn; a sound output unit that outputs sound to the hole; a sound measuring unit for measuring an internal hole sound, which is a sound inside the hole; a processing unit that determines whether or not the attachment position of the insertion unit is misaligned based on whether or not the level of a frequency component less than a reference frequency of the sound inside the hole measured by the sound measurement unit while the sound output unit is outputting sound is less than a reference level; and an acceleration detection unit that detects acceleration; Equipped with The processing unit If the acceleration detected by the acceleration detection unit is greater than the reference acceleration, A body-worn thermometer that determines whether the insertion part is misaligned by playing determination sound data from the sound output unit to determine whether the insertion part is misaligned.

4. An insertion part having a temperature acquisition part for acquiring the temperature of a hole in the wearer's body, the insertion part being inserted into the hole and worn; a sound output unit that outputs sound to the hole; a sound measuring unit for measuring an internal hole sound, which is a sound inside the hole; a processing unit that determines whether or not the attachment position of the insertion unit is misaligned based on the level of a frequency component of the sound inside the hole that is less than a reference frequency and that is measured by the sound measurement unit while the sound output unit is outputting sound; a sound data acquisition unit that acquires, from the sound output unit, sound data of a song to be played as determination sound data for determining whether or not the attachment position of the insertion part is misaligned; Equipped with The processing unit The sound data acquired by the sound data acquisition unit is reproduced by the sound output unit; acquiring a first low frequency level, which is a sound pressure level of a reference low frequency band, and a first high frequency level, which is a level of a reference high frequency band, from among the frequency components of the sound data; Among the frequency components of the sound inside the hole measured by the sound measurement unit, a second low-frequency level, which is the level of the reference low-frequency band, and a second high-frequency level, which is the level of the reference high-frequency band, are acquired, calculating a low frequency level difference that is a difference between the first low frequency level and the second low frequency level, and a high frequency level difference that is a difference between the first high frequency level and the second high frequency level; The body-worn thermometer determines that the insertion part is misaligned if the difference between the high-frequency level difference and the low-frequency level difference is greater than a reference sound pressure level difference.

5. The audio data acquisition unit further includes a song end acquisition unit that acquires a song end signal indicating that playback of the song of the sound data acquired by the sound data acquisition unit has ended, the acquired first low frequency level and first high frequency level are recorded in a storage unit after the song end acquisition unit acquires the song end signal, and the next time the same song is played from the sound output unit and a determination is made as to whether or not the attachment position of the insertion unit has shifted, the recorded first low frequency level and first high frequency level are used. The body-worn thermometer according to claim 4.

6. The sound data for determination is data of white noise, sweep sound, or music including frequency components of a reference low frequency band, which is a frequency band below the reference frequency, and a reference high frequency band, which is a frequency band equal to or higher than the reference frequency. The body-worn thermometer according to any one of claims 1 to 5.

7. The processing unit: If a reference time or more has elapsed since the previous determination of whether the insertion portion is misaligned, The sound output unit reproduces the determination sound data, and determines whether the insertion unit is misaligned. The body-worn thermometer according to any one of claims 1 to 6.

8. The processing unit: If it is determined that the insertion portion is misaligned, the sound output unit outputs a signal informing the wearer that the insertion portion is misaligned. The body-worn thermometer according to any one of claims 1 to 7.

9. Further comprising a communication unit that communicates with the electronic device, The processing unit If it is determined that the insertion unit is misaligned, a signal notifying the electronic device that the insertion unit is misaligned is transmitted via the communication unit. The body-worn thermometer according to any one of claims 1 to 8.

10. A communication unit that communicates with a body-worn thermometer that includes a temperature acquisition unit that acquires the temperature of a hole in the wearer's body, a sound output unit that outputs sound to the hole, and a sound measurement unit that measures the sound inside the hole, which is the sound inside the hole; a processing unit; Equipped with The processing unit transmitting sound data to the body-worn thermometer via the communication unit to determine whether the body-worn thermometer is misaligned; determining whether the wearing position of the body-wearable thermometer is misaligned based on whether the level of a frequency component less than a reference frequency of the sound inside the hole measured by the sound measurement unit while the sound output unit is outputting sound based on the sound data is less than a reference level; If the temperature change acquired by the temperature acquisition unit is greater than the reference temperature change, a sound output unit that reproduces sound data for determining whether the body-worn thermometer is misaligned, thereby determining whether the body-worn thermometer is misaligned; electronic equipment.

11. A communication unit that communicates with a body-worn thermometer that includes a temperature acquisition unit that acquires the temperature of a hole in the wearer's body, a sound output unit that outputs sound to the hole, and a sound measurement unit that measures the sound inside the hole, which is the sound inside the hole; an insertion detection unit that detects that the body-worn thermometer is inserted into the hole; a processing unit; Equipped with The processing unit transmitting sound data to the body-worn thermometer via the communication unit to determine whether the body-worn thermometer is misaligned; determining whether the wearing position of the body-wearable thermometer is misaligned based on whether the level of a frequency component less than a reference frequency of the sound inside the hole measured by the sound measurement unit while the sound output unit is outputting sound based on the sound data is less than a reference level; When the insertion detection unit detects that the body-worn thermometer has been inserted into the hole, a sound output unit that reproduces sound data for determining whether the body-worn thermometer is misaligned, thereby determining whether the body-worn thermometer is misaligned; electronic equipment.

12. A communication unit that communicates with a body-worn thermometer that includes a temperature acquisition unit that acquires the temperature of a hole in the wearer's body, a sound output unit that outputs sound to the hole, and a sound measurement unit that measures the sound inside the hole, which is the sound inside the hole; an acceleration detection unit that detects acceleration; a processing unit; Equipped with The processing unit transmitting sound data to the body-worn thermometer via the communication unit to determine whether the body-worn thermometer is misaligned; determining whether the wearing position of the body-wearable thermometer is misaligned based on whether the level of a frequency component less than a reference frequency of the sound inside the hole measured by the sound measurement unit while the sound output unit is outputting sound based on the sound data is less than a reference level; If the acceleration detected by the acceleration detection unit is greater than the reference acceleration, a sound output unit that reproduces sound data for determining whether the body-worn thermometer is misaligned, thereby determining whether the body-worn thermometer is misaligned; electronic equipment.

13. A communication unit that communicates with a body-worn thermometer that includes a temperature acquisition unit that acquires the temperature of a hole in the wearer's body, a sound output unit that outputs sound to the hole, and a sound measurement unit that measures the sound inside the hole, which is the sound inside the hole; a sound data acquisition unit that acquires, from the sound output unit, sound data of a song to be played as determination sound data for determining whether the body-worn thermometer is misaligned; and a processing unit; Equipped with The processing unit transmitting sound data to the body-worn thermometer via the communication unit to determine whether the body-worn thermometer is misaligned; determining whether the wearing position of the body-wearable thermometer is misaligned based on whether the level of a frequency component less than a reference frequency of the sound inside the hole measured by the sound measurement unit while the sound output unit is outputting sound based on the sound data is less than a reference level; The sound data acquired by the sound data acquisition unit is reproduced by the sound output unit; acquiring a first low frequency level, which is a sound pressure level of a reference low frequency band, and a first high frequency level, which is a level of a reference high frequency band, from among the frequency components of the sound data; Among the frequency components of the sound inside the hole measured by the sound measurement unit, a second low-frequency level, which is the level of the reference low-frequency band, and a second high-frequency level, which is the level of the reference high-frequency band, are acquired, calculating a low frequency level difference that is a difference between the first low frequency level and the second low frequency level, and a high frequency level difference that is a difference between the first high frequency level and the second high frequency level; If the difference between the high-frequency level difference and the low-frequency level difference is greater than a reference sound pressure level difference, it is determined that the wearing position of the body-worn thermometer is misaligned. electronic equipment.

14. A body-worn thermometer having a temperature acquisition unit that acquires the temperature of an orifice in the wearer's body and an insertion unit that is inserted into the orifice and attached, wherein if the change in temperature of the orifice in the wearer's body is greater than a reference temperature change, sound data for determination is reproduced to determine whether the attachment position of the insertion unit is misaligned; A method for detecting misalignment of an insertion part, which determines whether the insertion part is misaligned based on whether the level of frequency components below a reference frequency of the sound inside the hole, which is the sound inside the hole, is below a reference level while the sound data for determination is being played back.

15. Using a body-worn thermometer having a temperature acquisition unit that acquires the temperature of a hole in the wearer's body and an insertion unit that is inserted into the hole and attached, when it is detected that the insertion unit has been inserted into the hole, judgment sound data is played to determine whether the attachment position of the insertion unit has shifted, A method for detecting misalignment of an insertion part, which determines whether the insertion part is misaligned based on whether the level of frequency components below a reference frequency of the sound inside the hole, which is the sound inside the hole, is below a reference level while the sound data for determination is being played back.

16. A body-worn thermometer is used which has a temperature acquisition unit that acquires the temperature of a hole in the wearer's body, an insertion unit that is inserted into the hole and attached, and an acceleration detection unit that detects acceleration, and if the acceleration detected by the acceleration detection unit is greater than a reference acceleration, reproduces judgment sound data to determine whether the attachment position of the insertion unit is misaligned, A method for detecting misalignment of an insertion part, which determines whether the insertion part is misaligned based on whether the level of frequency components below a reference frequency of the sound inside the hole, which is the sound inside the hole, is below a reference level while the sound data for determination is being played back.

17. A body-worn thermometer having a temperature acquisition unit that acquires the temperature of a hole in the wearer's body, an insertion unit that is inserted into the hole and attached, and a sound data acquisition unit that acquires sound data of a song to be played, is used to acquire a first low-frequency level, which is the sound pressure level of a reference low-frequency band, and a first high-frequency level, which is the level of a reference high-frequency band, from the frequency components of the sound data, reproducing sound data for determination as to whether the insertion portion is misaligned; Among the frequency components of the measured sound inside the hole, a second low-frequency level, which is the level of the reference low-frequency band, and a second high-frequency level, which is the level of the reference high-frequency band, are obtained; calculating a low frequency level difference that is a difference between the first low frequency level and the second low frequency level, and a high frequency level difference that is a difference between the first high frequency level and the second high frequency level; The method for detecting misalignment of the insertion portion determines that the insertion portion is misaligned if the difference between the high-frequency level difference and the low-frequency level difference is greater than a reference sound pressure level difference.

18. A computer for a body-worn thermometer having a temperature acquisition unit that acquires the temperature of a hole in the wearer's body and an insertion unit that is inserted into the hole and attached, If the temperature change at the hole in the wearer's body is greater than a reference temperature change, sound data for determination is reproduced to determine whether the insertion portion is misaligned; and determining whether the attachment position of the insertion portion is misaligned based on whether the level of a frequency component less than a reference frequency of an intra-hole sound, which is a sound within the hole, is less than a reference level while the determination sound data is being played back. A program that executes a process.

19. A computer for a body-worn thermometer having a temperature acquisition unit that acquires the temperature of a hole in the wearer's body and an insertion unit that is inserted into the hole and attached, When it is detected that the insertion portion has been inserted into the hole, sound data for determination is reproduced to determine whether or not the attachment position of the insertion portion has shifted; and determining whether the attachment position of the insertion portion is misaligned based on whether the level of a frequency component less than a reference frequency of an intra-hole sound, which is a sound within the hole, is less than a reference level while the determination sound data is being played back. A program that executes a process.

20. A computer for a body-worn thermometer having a temperature acquisition unit that acquires the temperature of a hole in the wearer's body, an insertion unit that is inserted into the hole and attached, and an acceleration detection unit that detects acceleration, If the acceleration detected by the acceleration detection unit is greater than a reference acceleration, sound data for determination is reproduced to determine whether or not the insertion unit is misaligned. and determining whether the attachment position of the insertion portion is misaligned based on whether the level of a frequency component less than a reference frequency of an intra-hole sound, which is a sound within the hole, is less than a reference level while the determination sound data is being played back. A program that executes a process.

21. A computer for a body-worn thermometer having a temperature acquisition unit that acquires the temperature of a hole in the wearer's body, an insertion unit that is inserted into the hole and attached, and a sound data acquisition unit that acquires sound data of a song to be played, acquiring a first low frequency level, which is a sound pressure level of a reference low frequency band, and a first high frequency level, which is a level of a reference high frequency band, from among the frequency components of the sound data; reproducing sound data for determination as to whether the insertion portion is misaligned; Among the frequency components of the measured sound inside the hole, a second low-frequency level, which is the level of the reference low-frequency band, and a second high-frequency level, which is the level of the reference high-frequency band, are obtained; calculating a low frequency level difference that is a difference between the first low frequency level and the second low frequency level, and a high frequency level difference that is a difference between the first high frequency level and the second high frequency level; If the difference between the high-frequency level difference and the low-frequency level difference is greater than a reference sound pressure level difference, it is determined that the attachment position of the insertion part is misaligned. A program that executes a process.

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