Electronic device, notification method, and program

Abstract

To suppress the occurrence of wrong recognition of notification underwater.SOLUTION: An electronic device comprises a notification section and a control section. The control section enables the notification section to perform notification in one notification method of a plurality of notification methods including a first notification method for performing notification by outputting a notification sound and a second notification method for performing notification without outputting the notification sound. The control section causes the notification section to perform notification in the second notification method when the electronic device is determined to be used underwater. The electronic device comprises a notification section and a control section and can switch an operation mode of the electronic device between a first operation mode for other than underwater use and a second operation mode for underwater use. The control section enables the notification section to perform notification in one notification method of a plurality of notification methods including the first notification method for performing notification by outputting a notification sound and a second notification method for performing notification without outputting the notification sound. The control section causes the notification section to perform notification in the second notification method when the operation mode is the second operation mode.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an electronic device, a notification method, and a program. [Background technology]

[0002] 2. Description of the Related Art Conventionally, in electronic devices used underwater, such as wristwatches and diving computers, a technique is used for notifying a user underwater by outputting an alarm sound (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-242266 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in water, the propagation speed of sound is faster than in air, making it difficult to determine the location of the sound source. Therefore, in a situation where multiple users each wearing an electronic device are underwater, when an alarm sound is output from one user's electronic device, there is a risk that the other users may mistakenly recognize the alarm sound as coming from their own electronic device.

[0005] The present invention aims to reduce the occurrence of false alarms underwater. [Means for solving the problem]

[0006] In order to solve the above problems, the electronic device according to the present invention comprises: An electronic device including a notification unit and a control unit, The control unit is It is possible to cause the alarm unit to perform an alarm using one of a plurality of alarm methods including a first alarm method for performing an alarm by outputting an alarm sound and a second alarm method for performing an alarm without outputting the alarm sound, When it is determined that the electronic device is being used underwater, the notification unit is caused to give notification using the second notification method.

[0007] In order to solve the above problems, the electronic device according to the present invention comprises: An electronic device including a notification unit and a control unit, The operation mode of the electronic device is switchable between a first operation mode for use outside of water and a second operation mode for use underwater; The control unit is It is possible to cause the alarm unit to perform an alarm using one of a plurality of alarm methods including a first alarm method for performing an alarm by outputting an alarm sound and a second alarm method for performing an alarm without outputting the alarm sound, When the operation mode is the second operation mode, the notification unit is caused to give notification using the second notification method. Effect of the Invention

[0008] According to the present invention, it is possible to reduce the occurrence of false recognition of notifications underwater. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing a configuration of an electronic timepiece. [Figure 2A] FIG. 13 is an image diagram of an electronic watch notifying a user on land. [Figure 2B] 13 is a conceptual diagram of an electronic timepiece notifying a user underwater. [Diagram 3] FIG. 2 is a block diagram showing the functional configuration of the electronic timepiece. [Figure 4] FIG. 11 is a diagram showing the contents of notification setting data. [Diagram 5] FIG. 13 is a diagram showing the contents of a notification condition table. [Figure 6] 11A and 11B are diagrams illustrating combinations of vibration intensities and vibration patterns of a vibration unit. [Figure 7] 5A and 5B are diagrams illustrating combinations of light emission intensities and blinking patterns of light-emitting parts. [Figure 8] FIG. 11 is a diagram showing another example of notification setting data. [Figure 9] 13 is a flowchart showing a control procedure of a notification setting process. [Figure 10] 13 is a flowchart showing a control procedure of a notification setting process. [Figure 11] 13 is a flowchart showing a control procedure of a notification process. [Figure 12] 10 is a flowchart showing a control procedure of a notification setting process according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0011] (First embodiment) FIG. 1 is a diagram showing the configuration of an electronic watch 1. The electronic watch 1 (electronic device) is a wristwatch worn on the wrist of a user. The electronic watch 1 is also a diver's watch that can be used when the user is performing underwater activities. Underwater activities include, but are not limited to, diving and swimming. The electronic watch 1 includes a main body 101 provided with a display unit 14 and operation buttons 171, and a belt 102 attached to the main body 101. As shown in FIG. 2A, the electronic watch 1 can notify the user by outputting an alarm sound from a sound output unit 191 (see FIG. 3) on land. As shown in FIG. 2B, the electronic watch 1 can notify the user by vibrating a vibration unit 192 (see FIG. 3) underwater.

[0012] FIG. 3 is a block diagram showing the functional configuration of the electronic watch 1. As shown in FIG. The electronic watch 1 includes a CPU 11 (Central Processing Unit) (control unit), a RAM 12 (Random Access Memory), a storage unit 13, a display unit 14, a timing unit 15, a communication unit 16, an operation unit 17, a sensor unit 18 (sensor), and an alarm unit 19. The various units of the electronic watch 1 are connected via a bus 1b.

[0013] The CPU 11 is a processor that functions as a control unit that controls the operation of the electronic watch 1 by reading and executing the program 131 stored in the memory unit 13 and performing various arithmetic processing. The electronic watch 1 may have multiple processors (e.g., multiple CPUs), and the multiple processes performed by the CPU 11 of this embodiment may be executed by the multiple processors. In this case, the control unit is made up of the multiple processors. In this case, the multiple processors may be involved in a common process, or the multiple processors may independently execute different processes in parallel.

[0014] The RAM 12 provides a working memory space for the CPU 11 and stores temporary data.

[0015] The storage unit 13 is a non-transitory recording medium readable by the CPU 11 as a computer, and stores a program 131 and various data. The storage unit 13 has a non-volatile memory such as a flash memory. The program 131 is stored in the storage unit 13 in the form of a computer-readable program code. The data stored in the storage unit 13 include notification setting data 132 and a notification condition table 133. The specific contents of the notification setting data 132 and the notification condition table 133 will be described later.

[0016] The display unit 14 displays various information in an analog format using hands, a date indicator, etc. (not shown) in accordance with a control signal transmitted from the CPU 11. Information displayed by the display unit 14 includes, for example, the current date and time, the day of the week, the alarm time, the elapsed time of the timer, various information based on the output of the sensor unit 18 (water pressure, ascent speed in water, heart rate, etc.), and the operating mode of the electronic watch 1. The display unit 14 has a stepping motor whose operation is controlled by the CPU 11, and a gear train mechanism that transmits the driving force of the stepping motor to the hands, date indicator, etc. to rotate the hands, date indicator, etc. The display unit 14 is not limited to an analog type, and may display information in a digital type using a liquid crystal panel or the like. The display unit 14 may have a portion that displays information in an analog type and a portion that displays information in a digital type.

[0017] The timekeeping unit 15 includes an oscillation circuit, a frequency dividing circuit, a timekeeping circuit, etc. In the timekeeping unit 15, the frequency dividing circuit divides the clock signal generated by the oscillation circuit, and the frequency dividing circuit counts the divided signal, thereby deriving and holding the current date and time.

[0018] The communication unit 16 is a communication module having an antenna, a modulation / demodulation circuit, a signal processing circuit, etc., and performs wireless data communication with an external device according to a predetermined communication standard. The communication unit 16 may be provided with a configuration for communicating with an external device underwater, for example, a module for acoustic communication or optical wireless communication.

[0019] The operation unit 17 includes operation buttons 171 provided on the side surface or the like of the main body 101. The operation unit 17 accepts user operations on the operation buttons 171 and outputs operation signals corresponding to the operation buttons 171 to the CPU 11. The operation unit 17 may further include other members to be operated, such as a crown. The operation unit 17 may also include a touch panel provided over the display screen of the display unit 14.

[0020] The sensor unit 18 includes a pressure sensor 181 , a water detection sensor 182 , a motion sensor 183 and a pulse wave sensor 184 . The pressure sensor 181 is a semiconductor pressure sensor that utilizes the piezoresistance effect. The pressure sensor 181 outputs a detection value corresponding to the magnitude of the water pressure underwater to the CPU 11. The CPU 11 derives the water depth based on this detection value.

[0021] The water detection sensor 182 detects when the electronic timepiece 1 is wet and outputs the detection result to the CPU 11. There are no particular limitations on the detection method used by the water detection sensor 182, but it may be a method that detects when water causes a drop in electrical resistance between conductors exposed to the outside of the electronic timepiece 1. Furthermore, if the operation unit 17 is equipped with a capacitive touch panel, the touch panel may be used as the water detection sensor 182. In other words, wetness may be detected based on a change in capacitance caused by water coming into contact with the touch panel.

[0022] The motion sensor 183 detects the acceleration and / or angular velocity that occurs in accordance with the movement of the electronic timepiece 1, and outputs the detection result to the CPU 11. The motion sensor 183 includes, for example, a three-axis acceleration sensor and a three-axis angular velocity sensor.

[0023] The pulse wave sensor 184 detects a pulse wave as biometric data of the user. The pulse wave sensor 184 includes a light-emitting element that emits light from the back surface of the main body 101 (the surface that contacts the wrist when worn) and a light-receiving element that receives the light emitted from the light-emitting element and reflected by the user's skin. The light-emitting element emits green light that is easily absorbed by hemoglobin in the blood, for example, light with a peak wavelength of 520 nm to 530 nm. Since a part of the light irradiated to the skin is absorbed by the blood in the blood vessels, the amount of light reflected from the skin and received by the light-receiving element changes over time according to the change in blood flow rate associated with the pulsation of the heart. The pulse wave sensor 184 detects a pulse wave based on this change in the amount of received light, and outputs a waveform according to the detected pulse wave to the CPU 11. The CPU 11 derives the heart rate (pulse rate) based on the waveform.

[0024] The notification unit 19 issues various notifications to the user of the electronic timepiece 1. The notification unit 19 includes a sound output unit 191, a vibration unit 192, and a light emitting unit 193. Sound output unit 191 includes, for example, a piezoelectric speaker or a piezoelectric buzzer using a piezoelectric element, and outputs a notification sound such as a beep sound in accordance with a control signal transmitted from CPU 11. Sound output unit 191 may be capable of switching the volume of the output notification sound between two or more stages, and may also be capable of switching the frequency (sound pitch) between two or more stages.

[0025] The vibration unit 192 is a vibrator that vibrates according to the control of the CPU 11. The vibration of the vibration unit 192 is adapted to be transmitted to the main body 101 of the electronic watch 1. The user wearing the electronic watch 1 can recognize the vibration transmitted to the main body 101 on the wrist. The vibration unit 192 has, for example, a motor whose operation is controlled by the CPU 11, a rotating shaft rotated by the motor, and a weight attached in an eccentric state with respect to the rotating shaft, and functions as a vibration source by transmitting vibrations generated by the rotation of the eccentric weight to the surroundings. The vibration unit 192 can change the vibration intensity to two or more stages (three stages in this embodiment) according to the rotation speed of the motor, etc. Also, the vibration unit 192 can vibrate in one of two or more different vibration patterns (three types in this embodiment). Each vibration pattern is realized by changing the operation / non-operation of the motor and the vibration intensity in a predetermined pattern.

[0026] The light emitting unit 193 includes a light emitting element such as an LED (Light Emitting Diode) and emits light according to a control signal transmitted from the CPU 11. The light emitting unit 193 can change the light emission intensity and the blinking pattern (blinking frequency, etc.) according to the control signal. The user can recognize the notification by visually checking the light emitted by the light emitting unit 193. The light emitting unit 193 may emit light so as to illuminate the display surface of the display unit 14. In this case, the light emitting unit 193 may be a solar panel (solar battery) that is provided in the display unit 14 and emits light in response to application of a voltage. More specifically, the solar panel has a diode structure in which a compound semiconductor material such as InGaP is sandwiched between a pair of electrodes. The solar panel normally outputs a current in response to an electromotive force generated by receiving light to charge the battery. In addition, when the electromotive force of the battery is larger than the electromotive force of the solar panel, the solar panel and the battery are made conductive to apply a forward voltage to the solar panel to cause it to emit light. When the compound semiconductor material is InGaP, red light (with a central wavelength of 664.5 nm) is emitted. This solar panel is provided, for example, in an annular shape along the outer periphery of the circular display unit 14 shown in Fig. 1. This makes it possible to generate an annular red light emission inside the display unit 14. The light emitting unit 193 may be provided on the outer surface (side surface, etc.) of the main body unit 101, and may emit light toward the outside of the main body unit 101. Providing the light emitting unit 193 on the outer surface of the main body unit 101 not only makes it easier for the user wearing the electronic watch 1 to recognize the light emission, but also makes it easier for other users in the vicinity (such as divers diving together) to notice the light emission, making it easier for multiple users to support each other in dealing with an alert.

[0027] Next, the operation of the electronic timepiece 1 will be described, focusing on the notification operation by the notification unit 19 underwater. The electronic watch 1 of this embodiment has multiple different notification functions, and when the execution conditions for any of the notification functions are satisfied, the notification unit 19 issues a notification related to that notification function. The CPU 11 selects one notification setting from the multiple notification settings stored in the notification setting data 132 in accordance with a predetermined algorithm, and causes the notification unit 19 to issue a notification using a notification method corresponding to the selected notification setting.

[0028] FIG. 4 is a diagram showing the contents of the notification setting data 132. As shown in FIG. In FIG. 4, the notification functions of the electronic timepiece 1 are exemplified as "heart rate alert," "timer notification," "alarm," and "ascent speed warning." The "heart rate alert" is a notification that is executed when the execution condition is met and the heart rate derived based on the detection result of the pulse wave sensor 184 becomes equal to or higher than a predetermined lower limit (100 bpm in this embodiment). The "timer notification" is a notification that is executed when the execution condition is satisfied and the set timer time has elapsed in the timer mode. An "alarm" is a notification that is executed when the execution conditions are met and the alarm time set by the user arrives. The "ascent speed warning" is a notification that is executed when the underwater ascent speed derived based on the change over time in the detection result of the pressure sensor 181 reaches or exceeds a predetermined lower limit (9 m / s in this embodiment). If the ascent speed becomes too fast during diving, it can cause decompression sickness, so this notification is issued to prevent this. The notification for each notification function ends when a notification end condition that is separately determined for each notification function is met. In this embodiment, the notification end condition for the "heart rate alert" is that the heart rate r falls below 100. The notification end condition for the "timer notification" and "alarm" is that a predetermined time has passed since the start of the notification, or that the user has performed an operation to end the notification. The notification end condition for the "ascent speed warning" is that the ascent speed s falls below 9 m / s. A priority order may be set for the four notification functions, and when the execution conditions for two or more notification functions are satisfied, the notification function with the highest priority may be executed.

[0029] Each row of the notification setting data 132 corresponds to one notification function. The notification setting data 132 includes multiple notification settings that can be selected for each notification function. One frame (cell) in the notification setting data 132 shown in Fig. 4 corresponds to one notification setting. Each notification setting belongs to one of four notification setting classifications: "land default", "land custom", "underwater default", and "underwater custom".

[0030] "Land default" is a notification setting classification that includes notification settings that are selected by default when the electronic watch 1 is used on land. Notification settings that belong to "land default" cannot be changed by the user. In this embodiment, "land" is a convenient expression for any usage environment other than underwater, and includes use on land, on the sea, on water, in the air, etc. "Athletics custom" is a notification setting classification that includes notification settings that the user has customized and registered as notification settings for land. The content of each notification setting belonging to "Athletics custom" can be freely changed by the user by performing setting operations on a setting screen not shown. If a "Athletics custom" notification setting is registered for a certain notification function, that notification setting is selected preferentially, and the "Athletics default" notification setting is not selected. Note that the "ascent speed warning" is not registered in the "land default" and "land custom" notification setting categories. This is because the execution conditions for the "ascent speed warning" are met only when the electronic watch 1 is used underwater.

[0031] "Underwater default" is a notification setting category that includes notification settings that are selected by default when the electronic watch 1 is used underwater. Notification settings that belong to "underwater default" cannot be changed by the user. In this embodiment, "underwater" includes cases where the electronic watch 1 is used continuously underwater, such as diving, as well as cases where the electronic watch 1 is used in a wet state by going in and out of water, such as swimming. "Underwater custom" is a notification setting classification that includes notification settings customized and registered by the user as notification settings for underwater use. The content of each notification setting belonging to "underwater custom" can be freely changed by the user by performing setting operations on a setting screen not shown. If an "underwater custom" notification setting is registered for a certain notification function, that notification setting is selected preferentially, and the "underwater default" notification setting is not selected. For the notification functions of "heart rate alert" and "ascent speed warning", three notification settings (first to third stages) are registered in the notification setting classification of "underwater custom". Three notification conditions are defined corresponding to these three stages, and the notification setting of the stage that satisfies the corresponding notification condition is selected from the three stages. The contents of the multiple notification conditions are registered in notification condition table 133.

[0032] FIG. 5 is a diagram showing the contents of the notification condition table 133. As shown in FIG. As shown in Fig. 5, for the "heart rate alert", the notification condition is determined by the heart rate r (bpm). In detail, the first stage notification condition (hereinafter also referred to as the "first notification condition") is satisfied when "100≦r<120", the second stage notification condition (hereinafter also referred to as the "second notification condition") is satisfied when "120≦r<140", and the third stage notification condition (hereinafter also referred to as the "third notification condition") is satisfied when "140≦r". For the "ascent speed warning," the notification conditions are determined by the ascent speed s (m / min). In detail, the first stage notification condition (first notification condition) is met when "9≦s<13," the second stage notification condition (second notification condition) is met when "13≦r<18," and the third stage notification condition (third notification condition) is met when "18≦r." The notification conditions may be changed by the user through a specific operation. The notification conditions for the "ascent speed warning" may be changed automatically depending on the depth of the electronic timepiece 1 in water.

[0033] Each notification setting in the notification setting data 132 shown in FIG. 4 represents a notification method by the notification unit 19. The notification method by the notification unit 19 includes a notification method using any one of the sound output unit 191, the vibration unit 192, and the light-emitting unit 193, and a notification method using two or more of the sound output unit 191, the vibration unit 192, and the light-emitting unit 193 in combination. "Sound" in each notification setting in FIG. 4 represents notification by a notification sound from the sound output unit 191. "Vibration" represents notification by vibration of the vibration unit 192. "Light" represents notification by light emission of the light-emitting unit 193. When two or more of these are combined, the combined notifications are connected with "+" and written as "sound + vibration", for example.

[0034] Furthermore, for notification by vibration of the vibration unit 192, a combination of vibration intensity and vibration pattern of the vibration unit 192 is specified. FIG. 6 is a diagram showing combinations of vibration intensities and vibration patterns of the vibration section 192. As shown in FIG. In this embodiment, nine combinations are used, each consisting of one of three vibration intensities, "weak," "medium," and "strong," and one of three vibration patterns, "A," "B," and "C." In the following, a combination according to this vibration mode will be referred to as "vibration (weak A)" using the sign of the vibration intensity and the sign of the vibration pattern.

[0035] Furthermore, for the notification by light emission from light-emitting unit 193, one of two notification patterns with different blinking frequencies of light-emitting unit 193 is used. Hereinafter, the low frequency pattern will be referred to as "light (low)" and the high frequency pattern will be referred to as "light (high)." Note that with regard to the light emission from light-emitting unit 193, a combination of a plurality of different blinking patterns (light emission patterns) and a plurality of different light emission intensities may also be used. FIG. 7 is a diagram showing combinations of light emission intensities and blinking patterns of the light emitting section 193. As shown in FIG. As shown in FIG. 7, for example, six combinations may be used, each consisting of one of three light intensities, namely, "weak," "medium," and "strong," and one of two blinking patterns, namely, "low" and "high" blinking frequencies.

[0036] In this embodiment, the notification method corresponding to each notification setting belonging to "land default" and "land custom" is a notification method in which notification is performed by outputting a notification sound from the sound output unit 191 (hereinafter referred to as "first notification method"). In addition, the notification method corresponding to each notification setting belonging to "underwater default" and "underwater custom" is a notification method in which notification is performed without outputting a notification sound from the sound output unit 191 (hereinafter referred to as "second notification method"). When the user changes the notification setting of "underwater custom", it may be possible to prevent the user from changing it to a setting that outputs a notification sound. Hereinafter, the notification setting representing the first notification method will also be referred to as "first notification setting S1", and the notification setting representing the second notification method will also be referred to as "second notification setting S2".

[0037] For example, for the "heart rate alert" notification function in Fig. 4, the first notification setting S1a belonging to "land default" is "sound". Moreover, the first notification setting S1b belonging to "land custom" is "sound + vibration (weak A)". Therefore, when the execution conditions for the "heart rate alert" are met while the electronic watch 1 is being used on land, the first notification setting S1b belonging to "land custom" is selected, and a notification is given that combines the output of the notification sound from the sound output unit 191 and the vibration of the "vibration (weak A)" from the vibration unit 192. The second notification setting S2a belonging to "underwater default" is "vibration (weak A)". Among the notification settings belonging to "underwater custom", the second notification setting S2b of the "first stage" is "vibration (weak A)", the second notification setting S2c of the "second stage" is "vibration (medium A)", and the second notification setting S2d of the "third stage" is "vibration (strong A)". Therefore, when the execution condition of the "heart rate alert" is satisfied while the electronic watch 1 is being used underwater (when the heart rate r becomes 100 or more, that is, when the first notification condition is satisfied), the second notification setting S2b of the "first stage" of "underwater custom" is selected first, and notification is performed by vibration of "vibration (weak A)" of the vibration unit 192. After that, when the heart rate r becomes 120 or more and the second notification condition is satisfied, the second notification setting S2c of the "second stage" is selected, and notification is performed by vibration of "vibration (medium A)" of the vibration unit 192. Furthermore, when the heart rate r becomes 140 or more and the third notification condition is satisfied, the second notification setting S2d of the "third stage" is selected, and notification is performed by vibration of "vibration (strong A)" of the vibration unit 192. In this way, notification is performed such that the vibration strength increases as the heart rate r increases. Similarly, the "ascent speed warning" is issued such that the vibration intensity increases as the ascent speed s increases. In the notification setting data 132 shown in Fig. 4, each notification setting belonging to the "underwater custom" notification setting classification is vibration only. In addition, each notification setting belonging to "underwater custom" has a different combination of vibration intensity and vibration pattern, so the user can determine which notification function and which level of notification is associated with each notification from this combination. Such notification setting data 132 is used, for example, by an experienced diver who can determine the notification content from the combination of vibration pattern and vibration intensity.

[0038] In this way, for example, for a "heart rate alert", the CPU 11 sets one of a plurality of notification methods including the first notification method and the second notification method (six notification methods corresponding to notification settings S1a, S1b, S2a to S2d) as the notification method by the notification unit 19, and causes the notification unit 19 to make an alert using the set notification method. The CPU 11 also determines whether the electronic timepiece 1 is being used underwater based on the output from the sensor unit 18, and sets the notification method by the notification unit 19 to the second notification method (a notification method corresponding to any of notification settings S2a to S2d) if it is determined that the electronic timepiece 1 is being used underwater. The CPU 11 also determines whether each of a plurality of notification conditions is satisfied, and changes at least one of the vibration intensity and the vibration pattern in the vibration alert depending on which of the plurality of notification conditions is satisfied.

[0039] FIG. 8 is a diagram showing another example of the notification setting data 132. As shown in FIG. The notification setting data 132 shown in Fig. 8 differs from Fig. 4 in the content of the notification setting belonging to the notification setting classification of "underwater custom". For example, in the notification setting data 132 shown in Fig. 8, in the second notification setting S2c of "second stage", low-frequency light emission by the light-emitting unit 193 is used in addition to vibration by the vibration unit 192. That is, in the second notification method, when a first notification condition of the multiple notification conditions is satisfied, the notification unit 19 issues a notification by vibration of "first stage", and when a second notification condition different from the first notification condition is satisfied, the notification unit 19 issues a notification by vibration and light.

[0040] Furthermore, in the "third stage" notification setting, notification by an alarm sound from the sound output unit 191 is added. The notification setting in which notification by an alarm sound is added to the second notification setting S2c in this manner is referred to as the third notification setting S3. The notification method represented by the third notification setting S3 corresponds to the "third notification method." In addition, the "third notification condition" corresponding to the "third stage" in this case corresponds to the "enhanced notification condition." In other words, when the second notification setting S2 is selected and notification by the second notification method is being performed, if it is determined that the third notification condition as the enhanced notification condition is satisfied, the notification method by the notification unit 19 is switched to the third notification method in which notification by an alarm sound is added.

[0041] In this way, the notification settings belonging to "underwater custom" in the notification setting data 132 shown in Fig. 8 are settings that make it easy for the user to notice notifications by combining light emission and notification sounds in addition to vibration. Also, each notification setting belonging to "underwater custom" has a different combination of notification sounds, light emission and sounds, or output mode (vibration strength, vibration pattern, or blinking frequency), so the user can determine which notification function and which level of notification it is from this combination or output mode. Such notification setting data 132 is used, for example, by a novice diver who has little experience and has difficulty noticing notifications.

[0042] 8, the second notification setting S2 for "timer notification" belonging to "underwater customization" is only "light (low)." In this way, the second notification method corresponding to the second notification setting S2 may be one that does not output a notification sound from the sound output unit 191, and does not necessarily have to include vibration of the vibration unit 192.

[0043] Next, a notification setting process and a notification process executed by the CPU 11 of the electronic timepiece 1 to realize the above notification operation will be described. 9 and 10 are flowcharts showing a control procedure of the notification setting process. The notification setting process is a process for determining whether the electronic watch 1 is being used underwater or on land, and selecting notification settings corresponding to each notification function according to the determination result. The notification setting process is started, for example, when the electronic watch 1 is powered on. When the notification setting process is started, the CPU 11 starts to continuously obtain the output of the sensor unit 18 (step S101). The CPU 11 determines whether the water pressure detected by the pressure sensor 181 is equal to or greater than the reference pressure, and if it is determined that the water pressure is equal to or greater than the reference pressure ("YES" in step S102), it determines that the electronic timepiece 1 is being used underwater (step S104). Here, the reference pressure can be appropriately determined as the water pressure corresponding to a predetermined water depth, and for example, the water pressure corresponding to a water depth of 1.5 m may be set as the reference pressure.

[0044] If it is determined that the detected water pressure is less than the reference pressure ("NO" in step S102), the CPU 11 determines whether water is detected by the water detection sensor 182 (step S103). If it is determined that water is detected ("YES" in step S103), the CPU 11 determines that the electronic timepiece 1 is being used underwater (step S104). If it is determined that the detected water pressure is equal to or higher than the reference pressure ("YES" in step S102) and that water is detected by the water detection sensor 182 ("YES" in step S103), the process may proceed to step S104 to determine that the device is being used underwater. This can reduce the possibility of erroneous detection of whether the device is being used underwater. Also, to exclude cases where the electronic timepiece 1 has simply been splashed with water, the process may branch to "YES" in step S103 if water is detected by the water detection sensor 182 and the pressure detected by the pressure sensor 181 fluctuates by more than a predetermined fluctuation range. The predetermined fluctuation range may be set as large as possible, for example, within a range that is less than the pressure change caused by entering and exiting water while swimming. Also, if water is detected by the water detection sensor 182 and the amount of change in acceleration or angular velocity detected by the motion sensor 183 is within a predetermined range, the process may branch to "YES" in step S103. The above-mentioned predetermined range may be set so as to include the amount of change in acceleration or angular velocity during swimming, for example.

[0045] When step S104 is completed, the CPU 11 selects one of the notification functions included in the notification setting data 132 (step S105), and determines whether or not the notification setting of "underwater custom" is registered for the notification function (step S106). If it is determined that the notification setting of "underwater custom" is registered ("YES" in step S106), the CPU 11 selects the notification setting belonging to "underwater custom" for the selected notification function, and stores the selection result in the RAM 12 or the storage unit 13 (step S107). Here, if multiple notification settings are registered in "underwater custom", the CPU 11 selects the first notification setting. If it is determined that the notification setting of "underwater custom" is not registered ("NO" in step S106), the CPU 11 selects the notification setting belonging to "underwater default" for the selected notification function, and stores the selection result in the RAM 12 or the storage unit 13 (step S108). When step S107 or S108 ends, if there is an unselected notification function ("YES" in step S109), the CPU 11 returns the process to step S105 and selects notification settings for the next notification function.

[0046] If there are no unselected notification functions ("NO" in step S109), the CPU 11 repeatedly determines whether water is detected by the water detection sensor 182 (step S110). If it is determined that water is not detected by the water detection sensor 182 ("NO" in step S110), the CPU 11 determines that the electronic timepiece 1 is being used on land (step S111). Note that the processing content of step S110 is not limited to this, and for example, it may be determined that the electronic timepiece 1 is being used on land when the pressure detected by the pressure sensor 181 is stably less than the reference pressure.

[0047] The CPU 11 selects one of the notification functions registered in the notification setting data 132 (step S112 in FIG. 10), and determines whether or not a notification setting of "land custom" is registered for the notification function (step S113). If it is determined that a notification setting of "land custom" is registered ("YES" in step S113), the CPU 11 selects a notification setting belonging to "land custom" for the selected notification function, and stores the selection result in the RAM 12 or the storage unit 13 (step S114). If it is determined that a notification setting of "land custom" is not registered ("NO" in step S113), the CPU 11 selects a notification setting belonging to "land default" for the selected notification function, and stores the selection result in the RAM 12 or the storage unit 13 (step S115). When step S114 or S115 ends, if there is an unselected notification function ("YES" in step S116), the CPU 11 returns the process to step S112 and selects notification settings for the next notification function.

[0048] If there is no unselected notification function ("NO" in step S116), the CPU 11 determines whether or not an operation to turn off the power of the electronic watch 1 has been performed (step S117). If the CPU 11 determines that an operation to turn off the power has not been performed ("NO" in step S117), it returns the process to step S102, and if it determines that an operation to turn off the power has been performed ("YES" in step S117), it ends the notification setting process.

[0049] FIG. 11 is a flowchart showing a control procedure of the notification process. The notification process is a process for executing notifications related to the notification function of the electronic timepiece 1. The notification process is started, for example, when the electronic timepiece 1 is powered on. When the notification process is started, the CPU 11 repeatedly determines whether or not the execution condition of any of the notification functions is satisfied (step S201). For example, the CPU 11 determines that the execution condition of "heart rate alert" is satisfied when the heart rate derived based on the detection result of the pulse wave sensor 184 becomes equal to or higher than a predetermined lower limit. The CPU 11 also determines that the execution condition of "timer notification" is satisfied when a set timer time has elapsed in the timer mode. The CPU 11 also determines that the execution condition of "alarm" is satisfied when an alarm time set by the user is reached. The CPU 11 also determines that the execution condition of "ascent speed warning" is satisfied when the underwater ascent speed derived based on the change over time in the detection result of the pressure sensor 181 becomes equal to or higher than a predetermined lower limit. When it is determined that the execution condition of any of the notification functions is satisfied ("YES" in step S201), the CPU 11 acquires the selected notification setting corresponding to the notification function to be executed (step S202).

[0050] The CPU 11 determines whether or not the condition that the notification setting of "underwater customization" is selected and there are multiple notification settings for the notification function to be executed is satisfied (step S203). If it is determined that the condition is satisfied ("YES" in step S203), the CPU 11 determines whether or not each of the multiple notification conditions corresponding to the first to third stages is satisfied, and acquires the notification setting of the stage of "underwater customization" that corresponds to the satisfied notification condition (step S204).

[0051] When step S204 is completed, or when the process branches to "NO" in step S203, the CPU 11 sets the notification method to a method (corresponding to the first notification method or the second notification method) corresponding to the acquired notification setting. Then, the CPU 11 causes the notification unit 19 to perform notification using the set notification method (step S205). For example, when the acquired notification setting is the first notification setting S1b in FIG. 4, the CPU 11 causes the sound output unit 191 to output a notification sound and causes the vibration unit 192 to vibrate in the vibration mode of "vibration (weak A)". Also, for example, when the acquired notification setting is the second notification setting S2d in FIG. 4, the CPU 11 causes the vibration unit 192 to vibrate in the vibration mode of "vibration (strong A)".

[0052] The CPU 11 determines whether or not the notification end condition for the currently executed notification function is satisfied (step S206). For example, the CPU 11 determines that the notification end condition for "heart rate alert" is satisfied when the heart rate falls below a predetermined lower limit. The CPU 11 also determines that the notification end condition for "timer notification" or "alarm" is satisfied when a predetermined time has elapsed since the start of notification. The CPU 11 also determines that the notification end condition for "ascent speed warning" is satisfied when the ascent speed falls below a predetermined lower limit. When it is determined that the notification end condition is not satisfied, the CPU 11 returns the process to step S203. Thereafter, by executing the loop process of steps S203 to S206, when the satisfied notification condition changes, the notification stage (first stage to third stage) is changed accordingly.

[0053] If it is determined in step S206 that the notification end condition is met ("YES" in step S206), the CPU 11 ends the notification (step S207) and determines whether or not an operation to turn off the power of the electronic watch 1 has been performed (step S208). If it is determined that an operation to turn off the power has not been performed ("NO" in step S208), the CPU 11 returns the process to step S201, and if it is determined that an operation to turn off the power has been performed ("YES" in step S208), the notification process ends.

[0054] Second embodiment Next, a second embodiment will be described. The second embodiment differs from the first embodiment in the contents of the notification setting process, and is otherwise similar to the first embodiment. The following describes the differences from the first embodiment.

[0055] The CPU 11 of the electronic watch 1 of this embodiment switches the operation mode between the first operation mode and the second operation mode in response to a user operation. Here, the first operation mode is an operation mode for use on land (other than underwater), and the second operation mode is an operation mode for use underwater. There may be a plurality of different first modes, and there may be a plurality of different second modes. The user can make the electronic watch 1 perform an operation suitable for the underwater activity by switching the operation mode to the second operation mode in advance before starting an underwater activity such as diving or swimming. For example, when switching from the first operation mode to the second operation mode, the pressure sensor 181 starts detecting water pressure and the water detection sensor 182 starts detecting water, and the ascent speed warning is enabled. On the other hand, when switching from the second operation mode to the first operation mode, the detection of water pressure and water is stopped, and the ascent speed warning is disabled.

[0056] In this embodiment, the selection of the notification setting and the associated setting of the notification method by the notification unit 19 are also performed in response to switching of the operation mode. FIG. 12 is a flowchart showing a control procedure of the notification setting process according to the second embodiment. When the notification setting process is started, the CPU 11 repeatedly determines whether or not the operation mode has been switched by a user operation (step S301). Note that, in the notification setting process that is performed for the first time after the power is turned on, step S301 may be omitted, and the notification setting from step S302 onward may be selected according to the operation mode at that time.

[0057] When it is determined that the operation mode has been switched by a user operation ("YES" in step S301), CPU 11 determines whether the switched operation mode is the second operation mode or not (step S302). When it is determined that the operation mode is the second operation mode ("YES" in step S302), CPU 11 executes the processing of steps S303 to S307 for selecting an underwater notification setting. The processing of steps S303 to S307 is the same as the processing of steps S105 to S109 in the notification setting processing (FIG. 9) of the first embodiment, and therefore a description thereof will be omitted.

[0058] If it is determined that the post-switching operation mode is not the second operation mode (it is the first operation mode) ("NO" in step S302), the CPU 11 executes the process of steps S308 to S312 for selecting a notification setting on land. The process of steps S308 to S312 is the same as the process of steps S112 to S116 in the notification setting process (FIG. 10) of the first embodiment, and therefore a description thereof will be omitted.

[0059] If it is determined in step S307 or S312 that there is no unselected notification function ("NO" in step S307 or S312) and that the operation to turn off the power of the electronic watch 1 has not been performed ("NO" in step S313), the CPU 11 returns the process to step S301. If it is determined that the operation to turn off the power has been performed ("YES" in step S313), the CPU 11 ends the notification setting process.

[0060] (effect) As described above, the electronic watch 1 according to the first embodiment includes the notification unit 19 and the CPU 11, and the CPU 11 can cause the notification unit 19 to perform notification using one of a plurality of notification methods including a first notification method for outputting a notification sound and a second notification method for performing notification without outputting a notification sound, and when it is determined that the electronic watch 1 is being used underwater, the notification unit 19 is caused to perform notification using the second notification method. This allows the electronic watch 1 to be used underwater and the second notification method without outputting a notification sound. Therefore, in a situation where there are multiple users underwater, it is possible to prevent the problem of mistaking a notification sound from another user's electronic device for a notification sound from one's own electronic watch 1, or mistaking a notification sound from one's own electronic watch 1 for a notification sound from another user's electronic device. In addition, by selecting a notification method suitable for the environment in which the user is present, it is possible to make the user easily recognize the notification. As a result, it is possible to reduce the stress of the user during use.

[0061] The CPU 11 also determines whether or not the electronic timepiece 1 is being used underwater, based on the output from the sensor unit 18. This makes it possible to accurately determine whether or not the electronic timepiece 1 is being used underwater.

[0062] Moreover, the electronic watch 1 according to the second embodiment includes an alarm unit 19 and a CPU 11, the operation mode of the electronic watch 1 can be switched between a first operation mode for use outside underwater and a second operation mode for use underwater, and the CPU 11 can cause the alarm unit 19 to give an alarm using one of a plurality of alarm methods including a first alarm method for giving an alarm by outputting an alarm sound and a second alarm method for giving an alarm without outputting an alarm sound, and when the operation mode is the second operation mode, causes the alarm unit 19 to give an alarm using the second alarm method. This makes it possible to reduce the likelihood of misinterpreting an alarm underwater, similar to the first embodiment.

[0063] Furthermore, the CPU 11 switches the operation mode of the electronic watch 1 between the first operation mode and the second operation mode based on the user's operation. This allows the notification method to be changed in conjunction with the switching of the operation mode by the user's operation, so that the notification method can be switched reliably at the timing intended by the user.

[0064] In addition, in the second notification method, the CPU 11 causes the notification unit 19 to issue a notification by vibration of the vibration unit 192. Since the user can sense the vibration of the electronic watch 1 regardless of the underwater environment, this method makes it possible to issue a notification in a way that is easily recognized by the user, without using a notification sound.

[0065] Furthermore, the CPU 11 determines whether each of a plurality of different notification conditions is satisfied, and in the second notification method, at least one of the vibration intensity and the vibration pattern in the notification by vibration of the vibration unit 192 is changed according to the notification condition that is satisfied among the plurality of notification conditions. This makes it possible to notify in different modes according to the situation. For example, the mode of notification can be adjusted so that the more dangerous the situation is, the easier it is for the user to recognize it.

[0066] Furthermore, in the second notification method, the CPU 11 further causes the notification unit 19 to perform notification by emitting light from the light emitting unit 193. This makes it possible to more reliably make the user aware of the notification.

[0067] Furthermore, the CPU 11 determines whether each of a plurality of different notification conditions is satisfied, and in the second notification method, changes at least one of the light emission intensity and the blinking pattern in the notification by the light emission of the light emitting unit 193 according to the notification condition that is satisfied among the plurality of notification conditions. This makes it possible to perform notification in different modes according to the situation.

[0068] Furthermore, the CPU 11 determines whether each of a plurality of different notification conditions is satisfied, and in the second notification method, when a first notification condition of the plurality of notification conditions is satisfied, causes the notification unit 19 to perform notification by vibration of the vibration unit 192, and when a second notification condition different from the first notification condition of the plurality of notification conditions is satisfied, causes the notification unit 19 to perform notification by vibration of the vibration unit 192 and by light emission of the light emission unit 193. This makes it possible to perform notification in different modes depending on the situation. For example, light emission can be performed in a highly dangerous situation to make it easier for the user to recognize the notification.

[0069] Furthermore, when the CPU 11 causes the notification unit 19 to notify using the second notification method, the CPU 11 determines whether or not a notification reinforcement condition is satisfied, and when it determines that the notification reinforcement condition is satisfied, causes the notification unit 19 to notify using a third notification method in which notification using a notification sound from the sound output unit 191 is added to the notification using the second notification method. This makes it possible to more reliably cause the user to recognize the notification.

[0070] The electronic watch 1 also has a sensor unit 18 that has at least one of a pressure sensor 181 that detects water pressure and a water detection sensor 182 that detects contact with water. This makes it possible to reliably determine whether the electronic watch 1 is actually being used underwater.

[0071] Furthermore, in the notification method according to the first embodiment, the CPU 11 can cause the notification unit 19 to give an alert using one of a number of notification methods including a first notification method in which an alert is given by outputting an alert sound, and a second notification method in which an alert is given without outputting an alert sound, and when it is determined that the electronic watch 1 is being used underwater, causes the notification unit 19 to give an alert using the second notification method. This makes it less likely that a notification will be misinterpreted underwater.

[0072] In addition, in the notification method according to the second embodiment, the operation mode of the electronic watch 1 can be switched between a first operation mode for use outside underwater and a second operation mode for use underwater, and the CPU 11 can cause the notification unit 19 to give an alert using one of a number of notification methods including a first notification method for giving an alert by outputting an alert sound and a second notification method for giving an alert without outputting an alert sound, and when the operation mode is the second operation mode, causes the notification unit 19 to give an alert using the second notification method. This makes it less likely that a notification will be mistaken underwater.

[0073] Furthermore, the program 131 according to the first embodiment causes the CPU 11 to execute processing capable of causing the notification unit 19 to give an alert using one of a plurality of notification methods including a first notification method for giving an alert by outputting an alert sound and a second notification method for giving an alert without outputting an alert sound, and processing for causing the notification unit 19 to give an alert using the second notification method when it is determined that the electronic watch 1 is being used underwater. This makes it possible to reduce the likelihood of misinterpretation of notifications underwater.

[0074] Furthermore, the program 131 according to the second embodiment causes the CPU 11 to execute predetermined processes, and the operation mode of the electronic watch 1 can be switched between a first operation mode for use outside underwater and a second operation mode for use underwater, and the predetermined processes include processes capable of causing the alarm unit 19 to give an alert using one of a plurality of alert methods including a first alert method for giving an alert by outputting an alert sound and a second alert method for giving an alert without outputting an alert sound, and processes for causing the alarm unit 19 to give an alert using the second alert method when the operation mode is the second operation mode. This makes it less likely that an alert will be misinterpreted underwater.

[0075] (others) The present invention is not limited to the above-described embodiment, but may be modified in various ways. For example, in the above embodiment, the electronic device is exemplified as the electronic watch 1, but is not limited to this. The electronic device may be any device used underwater, such as a diver's computer.

[0076] The configuration of the alarm unit 19 is not limited to that exemplified in the above embodiment, and may include at least a configuration for providing an alarm by an alarm sound and a configuration for providing an alarm by vibration. For example, the alarm unit 19 may include a configuration for providing an alarm by a method other than outputting an alarm sound, vibration, and light emission.

[0077] In addition, in the first embodiment, a method for determining whether or not the electronic watch 1 is being used underwater is exemplified by a method for determining based on the output of the pressure sensor 181 and the water detection sensor 182 possessed by the electronic watch 1, but this is not limited to this. For example, the determination may be made based on the output of only one of the pressure sensor 181 and the water detection sensor 182. In this case, the other sensor that is not used may be omitted. The determination may also be made based on the output of a sensor provided outside the electronic watch 1. For example, in cases where a user goes diving while wearing another external device in addition to the electronic watch 1, the electronic watch 1 may receive the output of a sensor (such as a pressure sensor or water detection sensor) provided in the external device to determine whether or not it is being used underwater. Data can be transmitted and received underwater between the electronic watch 1 and the external device by, for example, wired communication, acoustic communication, or optical communication.

[0078] 4 and 8, the notification setting data 132 corresponding to the "underwater default" is set as the second notification setting in which the notification sound is not output, but may be set as the first notification setting in which the notification sound is output instead. In this case, it is preferable that the user is informed by a manual or the like that the notification sound is output when the "underwater default" notification setting is selected.

[0079] Also, the "land custom" and "underwater custom" may be omitted, and notification settings may be selected from the notification setting classifications of "land default" and "underwater default".

[0080] In the first embodiment, the first and second notification methods may be switched depending on whether or not there is an external device used by another user (for example, an electronic watch worn by another diver who is diving together) around the electronic watch 1. That is, in a situation where it is determined that the electronic watch 1 is being used underwater, the CPU 11 may set the notification method by the notification unit 19 to the first notification method when it is determined that there is no external device around the electronic watch 1, and may set the notification method by the notification unit 19 to the second notification method when it is determined that there is an external device around the electronic watch 1. Whether or not there is an external device around the electronic watch 1 can be determined based on whether or not a signal response has been received from an external device in response to transmitting a predetermined beacon signal by acoustic communication, optical communication, or the like. This makes it possible to suppress the occurrence of misunderstandings by not outputting a notification sound in a situation where a misunderstanding of a notification underwater may occur, and to perform a notification using a notification sound in a situation where there is no electronic device around and no misunderstanding of a notification will occur. This modified example may be applied to the second embodiment. That is, when the electronic watch 1 is operating in the second operation mode, the CPU 11 may set the notification method by the notification unit 19 to the first notification method when it is determined that there is no external device around the electronic watch 1, and may set the notification method by the notification unit 19 to the second notification method when it is determined that there is an external device around the electronic watch 1.

[0081] In the above description, an example has been disclosed in which the flash memory of the storage unit 13 is used as a computer-readable medium for the program according to the present invention, but the present invention is not limited to this example. As other computer-readable media, information recording media such as HDD (Hard Disk Drive), SSD (Solid State Drive), and CD-ROM can be applied. In addition, carrier waves are also applied to the present invention as a medium for providing data of the program according to the present invention via a communication line.

[0082] Furthermore, the detailed configuration and operation of each component of the electronic timepiece 1 in the above embodiment can of course be modified as appropriate without departing from the spirit of the present invention.

[0083] Although the embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents. [Explanation of symbols]

[0084] 1. Electronic clock (electronic device) 11 CPU (control unit) 18 Sensor section (sensor) 181 Pressure Sensor 182 Water detection sensor 183 Motion Sensor 184 Pulse wave sensor 19. Notification Department 191 Sound output section 192 Vibration part 193 Light-emitting part S1, S1a, S1b 1st notification setting (corresponding to the 1st notification method) S2, S2a to S2d Second notification setting (corresponding to the second notification method)

Claims

1. An electronic device including a notification unit and a control unit, The control unit is It is possible to cause the notification unit to perform notification using one of a plurality of notification methods including a first notification method for performing notification by outputting a notification sound and a second notification method for performing notification without outputting the notification sound, When it is determined that the electronic device is being used underwater, the notification unit is caused to notify using the second notification method. electronic equipment.

2. The control unit determines whether the electronic device is used underwater based on an output from a predetermined sensor.

2. The electronic device according to claim 1.

3. An electronic device including a notification unit and a control unit, The operation mode of the electronic device is switchable between a first operation mode for use outside of water and a second operation mode for use underwater; The control unit is It is possible to cause the notification unit to perform notification using one of a plurality of notification methods including a first notification method for performing notification by outputting a notification sound and a second notification method for performing notification without outputting the notification sound, When the operation mode is the second operation mode, causing the notification unit to notify using the second notification method. electronic equipment.

4. The control unit switches the operation mode of the electronic device between the first operation mode and the second operation mode based on a user operation.

4. The electronic device according to claim 3.

5. The control unit causes the notification unit to perform a notification by vibration in the second notification method. The electronic device according to any one of claims 1 to 4.

6. The control unit is determining whether or not each of a plurality of different notification conditions is satisfied; In the second notification method, at least one of a vibration intensity and a vibration pattern in the notification by vibration is changed depending on a notification condition that is satisfied among the plurality of notification conditions.

6. The electronic device according to claim 5.

7. The control unit, in the second notification method, further causes the notification unit to perform notification by light emission.

6. The electronic device according to claim 5.

8. The control unit is determining whether or not each of a plurality of different notification conditions is satisfied; In the second notification method, at least one of a light emission intensity and a blinking pattern in the notification by light emission is changed depending on a notification condition that is satisfied among the plurality of notification conditions.

8. The electronic device according to claim 7.

9. The control unit is determining whether or not each of a plurality of different notification conditions is satisfied; In the second notification method, when a first notification condition among the plurality of notification conditions is satisfied, the notification unit is caused to perform the notification by vibration, and when a second notification condition among the plurality of notification conditions, which is different from the first notification condition, is satisfied, the notification unit is caused to perform the notification by vibration and the notification by light emission.

8. The electronic device according to claim 7.

10. The control unit is determining whether a predetermined notification reinforcement condition is satisfied when the notification unit is caused to notify using the second notification method; When it is determined that the notification enhancement condition is satisfied, the notification unit is caused to notify using a third notification method in which the notification using the notification sound is added to the notification using the second notification method.

6. The electronic device according to claim 5.

11. The sensor is provided The sensor includes at least one of a pressure sensor that detects water pressure and a water detection sensor that detects contact with water.

3. The electronic device according to claim 2.

12. A notification method executed by a computer provided in an electronic device having a notification unit, It is possible to cause the notification unit to perform notification using one of a plurality of notification methods including a first notification method for performing notification by outputting a notification sound and a second notification method for performing notification without outputting the notification sound, When it is determined that the electronic device is being used underwater, the notification unit is caused to notify using the second notification method. Notification method.

13. A notification method executed by a computer provided in an electronic device having a notification unit, comprising: The operation mode of the electronic device is switchable between a first operation mode for use outside of water and a second operation mode for use underwater; In the notification method, It is possible to cause the notification unit to perform notification using one of a plurality of notification methods including a first notification method for performing notification by outputting a notification sound and a second notification method for performing notification without outputting the notification sound, When the operation mode is the second operation mode, causing the notification unit to notify using the second notification method. Notification method.

14. A computer provided in an electronic device having a notification unit, a process capable of causing the notification unit to perform notification using one of a plurality of notification methods including a first notification method for performing notification by outputting a notification sound and a second notification method for performing notification without outputting the notification sound; a process of causing the notification unit to notify using the second notification method when it is determined that the electronic device is being used underwater; A program that executes the following.

15. A program for causing a computer provided in an electronic device having a notification unit to execute a predetermined process, The operation mode of the electronic device is switchable between a first operation mode for use outside of water and a second operation mode for use underwater; The predetermined process includes: a process capable of causing the notification unit to perform notification using one of a plurality of notification methods including a first notification method for performing notification by outputting a notification sound and a second notification method for performing notification without outputting the notification sound; a process of causing the notification unit to notify using the second notification method when the operation mode is the second operation mode; Including, the program.

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