Notification device and program product

Abstract

The invention relates to a notification device and a program product. A notification device held by a user is provided with a control unit capable of switching between a first mode and a second mode. The first mode is a mode in which location information indicating the location of the notification device is transmitted to a prescribed external device at a first cycle and a reminder notification is issued when an issuing condition of the reminder notification for causing a user to take a secure action is satisfied. In addition, the second mode is a mode in which the location information is transmitted to the prescribed external device at a second period longer than the first period and the transmission of the alert notification is turned off.

Description

Technical Field

[0001] The present disclosure relates to a technology for issuing a notification that prompts a user to take a safety action. Background Art

[0002] Japanese Unexamined Patent Application Publication No. 2021-072040 discloses a technology related to power control of a portable terminal carried by a carrier. In the technology disclosed in Japanese Unexamined Patent Application Publication No. 2021-072040, when a first condition is satisfied where the current location is a preset location, the portable terminal is controlled to a power-saving state. Further, when a second condition is satisfied where the current location is a location other than the preset location, the portable terminal is controlled to the power-saving state. Summary of the Invention

[0003] An object of the present disclosure is to appropriately transmit location information to an external device while ensuring the issuance of a reminder notification required for a user in a notification device, and to suppress power consumption.

[0004] A notification device according to a first aspect of the present disclosure is held by a user, and the notification device includes a control unit that can switch between a first mode and a second mode. The first mode is a mode in which location information indicating the location of the notification device is transmitted to a predetermined external device at a first period and the reminder notification for prompting the user to take a safety action is issued when the issuance condition is satisfied. The second mode is a mode in which the location information is transmitted to the predetermined external device at a second period longer than the first period and the issuance of the reminder notification is turned off.

[0005] A program according to a second aspect of the present disclosure controls a terminal that can communicate with the notification device according to the first aspect. When the user is a first user and a second user different from the first user performs an operation for communicating with the notification device on the terminal while the second mode is being executed in the notification device, the program causes the terminal to display that communication with the notification device is currently unavailable.

[0006] According to the present disclosure, in the notification device, it is possible to appropriately transmit location information to an external device while ensuring the issuance of a reminder notification required for a user, and to suppress power consumption. Brief Description of the Drawings

[0007] Hereinafter, features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described with reference to the drawings, in which like reference numerals denote like elements, where:

[0008] Figure 1 is a diagram showing an outline of the system according to the embodiment.

[0009] Figure 2 This is a block diagram schematically showing the structure of a notification device.

[0010] Figure 3 It is a diagram showing the status of each function of the notification device in each control mode.

[0011] Figure 4 This is a flowchart showing the flow of a control mode selection process in the notification device.

[0012] Figure 5 This is a flowchart showing the flow of the release control of the second mode.

[0013] Figure 6 This is a flowchart showing the flow of call impossible notification control. DETAILED DESCRIPTION

[0014] The notification device of the present disclosure is a device held by a user. The notification device has a function of sending a reminder notification to the user holding the notification device. Here, the reminder notification is a notification that prompts the user to take a safe action. The safe action is an action used to ensure the safety of the user himself. The safe action prompted by the reminder notification to the user can also be changed according to the user's location, for example.

[0015] Furthermore, the notification device has a function of sending location information indicating the location of the notification device, that is, location information indicating the location of the user holding the notification device (hereinafter, sometimes referred to as the "first user") to a specified external device. Thus, a user different from the first user (hereinafter, sometimes referred to as the "second user") can receive the location information of the first user at his own terminal via the specified external device. As a result, the second user can grasp the location of the first user.

[0016] In addition, the notification device includes a control unit. The control unit can switch between a first mode and a second mode as control modes of the notification device. Here, the first mode is a mode in which the location information is sent to a specified external device in a first cycle and a reminder notification is issued when the condition for issuing the reminder notification is met. The issuance condition is, for example, that the first user is present in a place where safety actions should be taken. In addition, the issuance condition may also be that the first user is taking an action that should prompt the first user to take safety actions. On the other hand, the second mode is a mode in which the location information is sent to a specified external device in a second cycle longer than the first cycle and the issuance of the reminder notification is turned off.

[0017] In the notification device of the present disclosure, the control unit executes the first mode. As a result, the second user can grasp the position of the first user at the first cycle, and can issue a reminder notification when the first user should be prompted to take a safety action. Moreover, when it is not necessary to prompt the first user to take a safety action, the control unit can be made to execute the second mode in the notification device. When it is not necessary to prompt the first user to take a safety action, it is considered that the necessity for the second user to grasp the position of the first user is also reduced. Therefore, in the second mode, the transmission cycle of the position information is set to be longer than the transmission cycle in the first mode. Moreover, in the second mode, the issuance of the reminder notification is not performed. Therefore, by the control unit executing the second mode, power consumption in the notification device can be suppressed.

[0018] Therefore, according to the notification device of the present disclosure, it is possible to appropriately transmit position information to an external device while ensuring the issuance of a reminder notification required for the user, and to suppress power consumption.

[0019] Hereinafter, specific embodiments of the present disclosure will be described based on the drawings. Unless otherwise specified, the dimensions, materials, shapes of the constituent parts described in this embodiment, and the relative arrangements of the constituent parts are not intended to limit the technical scope of the present disclosure thereto.

[0020] Embodiment

[0021] System Outline

[0022] Figure 1 FIG. is a diagram showing an outline of the system of this embodiment. System 1 is a system for remotely caring for a first user. Here, the first user may be, for example, a child. System 1 includes a notification device 100, a management server 200, and a second user terminal 300.

[0023] The notification device 100 is a device held by the first user. The notification device 100 may be, for example, a wearable device that can be attached to the clothes, hat, or bag of the first user. The notification device 100 has a function of issuing a reminder notification. The reminder notification is a notification for prompting the first user to take a safety action. The notification device 100 may issue, for example, a voice such as "Please confirm left and right!" as the reminder notification. In addition, the notification device 100 has a function of performing data communication with the management server 200. And the notification device 100 transmits position information indicating the position of the notification device 100, that is, position information indicating the position of the first user holding the notification device 100, to the management server 200.

[0024] In addition, the second user terminal 300 is a terminal associated with the second user. The second user is the user who takes care of the first user. The second user can also be, for example, the parents of the first user. In the system 1, the second user terminal 300 corresponding to the notification device 100 is preset. The second user terminal 300 can also be, for example, a smart phone, a tablet computer, a mobile computer, or a wearable computer. In addition, the second user terminal 300 has a function of performing data communication with the management server 200. And the second user terminal 300 receives the location information of the first user that the management server 200 has received from the notification device 100 from the management server 200. Thus, the second user can grasp the location of the first user.

[0025] In addition, the second user terminal 300 has a function of sending data for various settings in the notification device 100 to the notification device 100 via the management server 200. The notification device 100, the second user terminal 300, and the management server 200 are interconnected via a network. Here, as the network, for example, a mobile communication network using a specified standard such as LTE (Long Term Evolution) or 5G (5th Generation Mobile Communication Technology) can be adopted.

[0026] Moreover, the notification device 100 and the second user terminal 300 have a call function. Therefore, the first user and the second user can make a voice call to each other through the call function of the notification device 100 and the second user terminal 300.

[0027] Configuration of the Notification Device

[0028] Next, the configuration of the notification device 100 will be described. Figure 2 is a block diagram schematically showing the configuration of the notification device 100. The notification device 100 includes a control unit 110, a storage unit 120, a battery 130, a GPS (Global Positioning System) receiver 140, a motion sensor 150, a speaker 160, a display 170, a data communication module 180, and a call module 190.

[0029] The control unit 110 has a function of performing arithmetic processing for controlling the notification device 100. The control unit 110 includes a processor such as a CPU (Central Processing Unit), a main storage device such as a RAM (Random Access Memory), and an auxiliary storage device such as a ROM (Read Only Memory). It should be noted that the CPU is an example of a processor resource. In addition, the RAM and the ROM are examples of memory resources. The control unit 110 can execute arbitrary information processing based on various programs and various data. However, part or all of the functions of the control unit 110 can also be implemented by hardware circuits such as an ASIC (Application Specific Integrated Circuit) and an FPGA (Field Programmable Gate Array).

[0030] The storage unit 120 (storage medium) is composed of an arbitrary storage device such as a RAM, a ROM, and a flash memory. The storage unit 120 may also include a removable medium (portable recording medium). Here, the removable medium may be, for example, a USB (Universal Serial Bus) memory or an SD card (Secure Digital Memory Card). Programs executed by the control unit 110 and various data for program execution are stored in the storage unit 120.

[0031] In addition, a safety confirmation location database (safety confirmation location DB) 121 and a schedule database (schedule DB) 122 are constructed in the storage unit 120. Information related to a safety confirmation location is stored in the safety confirmation location DB 121, where the safety confirmation location is a geographical location (or area) where the first user should be prompted to take safety actions. The safety confirmation location may include, for example, intersections, crosswalks, level crossings, and parking lots. In addition, the safety confirmation location may be set based on past accident information or disaster information. In addition, based on the driving data collected from each vehicle traveling on the road, a location where many vehicles exhibit specific behaviors (for example, ignoring a stop sign, sudden braking, etc.) may be set as the safety confirmation location. In addition, the system 1 may be configured such that a second user can use a second user terminal 300 to additionally register a new safety confirmation location in the safety confirmation location DB 121. Information related to a time period during which the power saving mode should be executed in the notification device 100 is stored in the schedule DB 122. It should be noted that the details of the power saving mode will be described later.

[0032] The battery 130 supplies power to the notification device 100. The GPS (Global Positioning System) receiver 140 acquires the current position of the notification device 100. The motion sensor 150 is a sensor that detects the behavior of the notification device 100 (the behavior of the first user). Specifically, as the motion sensor 150, it includes sensors such as an angular velocity sensor, an acceleration sensor, and a geomagnetic sensor. The speaker 160 emits a voice as a reminder notification. The display 170 displays the state of the notification device 100. In addition, the display 170 can also display the reminder notification as text or an image. In addition, the display 170 can also be a touch panel display that accepts input operations.

[0033] The data communication module 180 is a communication interface for connecting the notification device 100 to a network. For example, the data communication module 180 can be a wireless communication circuit for performing wireless communication according to the communication standard adopted in the network. The notification device 100 performs data communication with the management server 200 via the data communication module 180. In addition, the call module 190 is an interface for making a voice call. The notification device 100 makes a call with the second user terminal 300 via the call module 190.

[0034] It should be noted that the management server 200 is a computer equipped with a control unit, a storage unit, and a data communication module. In addition, the second user terminal 300 is equipped with a control unit, a storage unit, a data communication module, and a call module.

[0035] Reminder notification processing

[0036] Here, the processing for issuing a reminder notification executed by the control unit 110 of the notification device 100 will be described. In the notification device 100, the GPS receiver 140 acquires the current position of the notification device 100 at a prescribed cycle. The current position of the notification device 100 acquired by the GPS receiver 140 is input to the control unit 110. In addition, information related to a plurality of safety confirmation locations is stored in the safety confirmation location DB 121 of the storage unit 120. And for each safety confirmation location, a reminder notification corresponding to the safety action that the first user should be prompted to take is set.

[0037] The control unit 110 determines whether the current position of the notification device 100 input from the GPS receiver 140 is located at any of the multiple safety confirmation locations stored in the safety confirmation location DB 121. And, when the current position of the notification device 100 is located at one of the multiple safety confirmation locations, the control unit 110 issues a reminder notification corresponding to the one safety confirmation location via the speaker 160. It should be noted that, in this case, the current position of the notification device 100 being located at any of the multiple safety confirmation locations is equivalent to the "issuing condition" of the present disclosure.

[0038] In addition, it can also be that the control unit 110 determines whether to issue a reminder notification not only by referring to the position of the notification device 100 but also by referring to the behavior of the notification device 100. Specifically, the detection value of the motion sensor 150 indicating the behavior of the notification device 100 is input to the control unit 110. And, when the current position of the notification device 100 is located at a specific safety confirmation location, the control unit 110 determines whether the first user is taking an action that should prompt a safety action based on the detection value of the motion sensor 150. At this time, when it is determined that the first user is taking an action that should prompt a safety action, the control unit 110 issues a reminder notification corresponding to the action taken by the first user via the speaker 160. Thus, for example, when it is determined that the first user is running at a safety confirmation location with a large volume of vehicle traffic, a voice such as "It's dangerous to run" is issued as a reminder notification from the speaker 160. It should be noted that, in this case, the first user taking an action that should prompt a safety action is also included in the "issuing condition" of the present disclosure.

[0039] Control mode

[0040] Next, the control mode of the notification device 100 will be described. The notification device 100 has a first mode, a second mode, and a third mode as control modes. And these control modes are switched by the control unit 110. The first mode is the mode in which the above-mentioned reminder notification process is executed. Moreover, in the first mode, the current position of the notification device 100 (the current position of the first user) obtained by the GPS receiver 140 is transmitted to the management server 200 via the data communication module 180 at a prescribed first period. Then, in response to a request from the second user, the management server 200 transmits the position information indicating the position of the first user received from the notification device 100 to the second user terminal 300. In this way, the control unit 110 executes the first mode. Thus, the second user can grasp the position of the first user at the first period and can receive a reminder notification from the notification device 100 when the first user should be prompted to take a safety action.

[0041] However, it is not always necessary to continuously monitor the first user. For example, when the first user is in a relatively safe place such as a school, the necessity of grasping the position of the first user and sending a reminder notification to the first user is low. In such a case, in order to suppress the power consumption in the notification device 100, the second mode or the third mode can be selected as the power-saving mode.

[0042] Figure 3 It is a diagram showing the states of the respective functions of the notification device 100 in each control mode. Here, Figure 3 The functions of the notification device 100 are listed in the uppermost row. The data communication function is the function of sending data to the management server 200 via the data communication module 180. The position information sending function is the function of obtaining the current position of the notification device 100 through the GPS receiver 140 and sending the position information to the management server 200. The reminder calculation function is the function of performing calculations for determining whether a reminder notification should be sent to the first user in the reminder notification process. The voice output function is the function of outputting a reminder notification via the speaker 160. The walking detection calculation function is the function of performing calculations for detecting that the first user is walking using the detection values of the motion sensor 150. The call function is the function of making a call to the second user terminal 300 via the call module 190.

[0043] Figure 3 The respective functions shown are switched between on (ON) and off (OFF) by the control unit 110. And the control unit 110 realizes each control mode by switching the respective functions between on and off. Here, in the first mode, Figure 3 All the various functions shown are turned on. At this time, as described above, the sending of the position information to the management server 200 is executed at the first cycle. In addition, the reminder calculation function and the voice output function are turned on, whereby the above-mentioned reminder notification process is executed. In addition, in the first mode, the call function is turned on, whereby the first user and the second user can make a call.

[0044] On the other hand, in the third mode, Figure 3 All the various functions shown are turned off. Therefore, in the third mode, neither the sending of the position information to the management server 200 nor the reminder notification process is executed. In addition, the first user and the second user cannot use the notification device 100 and the second user terminal 300 to make a call.

[0045] In the third mode, as described above, various functions are turned off, thereby suppressing power consumption in the notification device 100. However, even when there is no need to prompt the first user to take a safety action through reminder notification processing, the second user sometimes wants to know the location of the first user. However, even in such a case, it is considered that the necessity for the second user to know the location of the first user is lower than in the case where it is necessary to prompt the first user to take a safety action. Therefore, in the second mode, Figure 3 the data communication function, the location information transmission function, and the walking sensing arithmetic function among the various functions shown are turned on, and other functions are turned off. At this time, the transmission of the location information to the management server 200 is executed at a prescribed second period that is longer than the first period, which is the data transmission period in the first mode. In this way, in the second mode, the transmission period of the location information is set to be longer than that in the first mode, and reminder notification processing is not performed. Therefore, even in the second mode, power consumption in the notification device 100 can be suppressed compared to the first mode.

[0046] Here, the second user can use the second user terminal 300 to set the schedule of the control mode of the notification device 100. Specifically, the second user inputs the time period during which the power saving mode, that is, the second mode and / or the third mode, should be executed into the second user terminal 300. Then, the information related to the time period input into the second user terminal 300 is transmitted to the notification device 100 via the management server 200. In the notification device 100, when the information related to the time period during which the second mode and / or the third mode should be executed is received from the management server 200, the control unit 110 stores this information in the schedule DB 122. Thereby, the second user can set the schedule of the control mode of the notification device 100 to match the action schedule of the first user.

[0047] Then, in the notification device 100, the control unit 110 selects and executes the control mode based on the schedule stored in the schedule DB 122. Figure 4 is a flowchart showing the flow of the selection process of the control mode in the notification device 100. This process is executed by the control unit 110 at a prescribed period.

[0048] In this process, first, in S101, it is determined whether the current time period is one in which the power-saving mode should be executed. Specifically, it is determined whether the current time is within the time period for executing the second mode or the time period for executing the third mode stored in the schedule DB122. At this time, if the time periods for executing the second mode and the third mode are not stored in the schedule DB122, a negative determination is made in S101. In addition, even if the time periods for executing the second mode and / or the third mode are stored in the schedule DB122, if the current time is not within these time periods, a negative determination is also made in S101. When a negative determination is made in S101, it can be determined that the execution of the power-saving mode is not required. In this case, the process of S102 is then executed. In S102, the first mode is executed as the control mode.

[0049] On the other hand, when an affirmative determination is made in S101, the process of S103 is then executed. In S103, it is determined whether the current time is within the time period for executing the second mode. At this time, if the time period for executing the second mode is stored in the schedule DB122 and the current time is within this time period, an affirmative determination is made in S103. In this case, the process of S104 is then executed. In S104, the second mode is executed as the control mode.

[0050] On the other hand, if the time period for executing the second mode is not stored in the schedule DB122, a negative determination is made in S103. In addition, even if the time period for executing the second mode is stored in the schedule DB122, if the current time is not within this time period, a negative determination is also made in S103. When a negative determination is made in S103, it can be determined that the current time is within the time period for executing the third mode. In this case, the process of S105 is then executed. In S105, the third mode is executed as the control mode.

[0051] According to the above, the notification device 100 can execute each control mode according to the schedule set by the second user.

[0052] Release control of the second mode

[0053] Next, the release control of the second mode will be described. Sometimes, the second user sets the time period during which the first user is at school or in a specific facility as the time period for executing the second mode. This is because it is considered that there is no need to prompt the first user to take safety actions at school or in a specific facility. And during the period when the first user is at school or in a specific facility, the notification device 100 is sometimes placed in a fixed position. In this case, in other words, during the period when the position of the notification device 100 does not move from the fixed position, it can be determined that the first user is at school or in a specific facility.

[0054] However, the schedule of the first user may sometimes change unexpectedly. For example, the time when the first user leaves school or a specific facility may sometimes be earlier than scheduled. In this case, although it is within the time period set to execute the second mode, assuming the time period the first user spends in school or a specific facility, the first user moves from school or a specific facility. In such a situation, preferably, the first mode is executed at the timing when the first user moves from school or a specific facility.

[0055] Therefore, in the notification device 100, when the above-described situation occurs, the release control of the second mode is executed to switch the control mode from the second mode to the first mode. Figure 5 It is a flowchart showing the process of releasing control of the second mode. This process is executed by the control unit 110 at a predetermined cycle when the notification device 100 is executing the second mode.

[0056] In this process, first, in S201, the detection value of the motion sensor 150 is acquired. Next, in S202, based on the detection value of the motion sensor 150 acquired in S201, it is determined whether the first user is walking.

[0057] As described above, during the period when the first user is in school or a specific facility, the notification device 100 is placed at a fixed position. Therefore, during this period, a detection value indicating the first user's walking would not be detected by the motion sensor 150. Therefore, when a detection value indicating the first user's walking is detected by the motion sensor 150, the first user is moving the notification device 100 from the fixed position. That is, it can be determined that the first user intends to move from school or a specific facility.

[0058] Therefore, when a negative determination is made in S202, the execution of this process ends. In this case, in the notification device 100, the second mode continues to be executed. On the other hand, when an affirmative determination is made in S202, the process of S203 is then executed. It should be noted that in S202, it may also be that when the detection value of the motion sensor 150 indicates that the first user is walking for a period longer than a specified period, an affirmative determination is made. In S203, in the notification device 100, the second mode is released and the control mode is switched to the first mode.

[0059] According to the above process, when the first user intends to move from school or a specific facility during the time period when the second mode should be executed stored in the schedule DB122, in the notification device 100, the control mode can be switched from the second mode to the first mode.

[0060] Note that after the second mode is released by the above-described release control of the second mode, if a detection value indicating the walking of the first user is not detected from the motion sensor 150 within a specified period, it is highly likely that the movement of the first user from school or a specific facility has not actually occurred. Therefore, in such a case, the control unit 110 may also return the control mode of the notification device 100 from the first mode to the second mode.

[0061] Uncallable notification

[0062] Next, the uncallable notification control executed in the second user terminal 300 will be described. As described above, when the second mode or the third mode as a power saving mode is being executed as the control mode in the notification device 100, the call function is turned off. However, even during the period when the power saving mode is being executed in the notification device 100, the second user sometimes desires to use the second user terminal 300 to make a call to the first user. Therefore, in the present embodiment, in such a case, in the second user terminal 300, an uncallable notification control for notifying the second user that a call cannot be made to the notification device 100 (make a call to the first user) is executed.

[0063] Figure 6 is a flowchart showing the process of the uncallable notification control. When a call operation is performed on the second user terminal 300, this process is executed by the control unit of the second user terminal 300. In this process, first, in S301, it is determined whether a call operation for making a call to the notification device 100 has been performed on the second user terminal 300. If a negative determination is made in S301, the execution of this process is temporarily terminated.

[0064] On the other hand, if an affirmative determination is made in S301, the process of S302 is then executed. In S302, it is determined whether the power saving mode is currently being executed in the notification device 100. Here, as described above, when the second user wants to set the schedule of the control mode of the notification device 100, the period during which the second mode should be executed and / or the period during which the third mode should be executed are input to the second user terminal 300. The input information at this time is also stored in the storage unit of the second user terminal 300. Therefore, in S302, it is also possible to determine whether the power saving mode is currently being executed in the notification device 100 based on the period during which the second mode should be executed and / or the period during which the third mode should be executed that was previously input to the second user terminal 300 for the schedule setting of the control mode of the notification device 100. In addition, it is also possible to receive information related to the currently executed control mode from the notification device 100 via the management server 200.

[0065] When a negative determination is made in S302, that is, when the notification device 100 is executing the first mode, the process of S304 is then executed. In S304, a call is made to the notification device 100. On the other hand, when an affirmative determination is made in S302, that is, when the notification device 100 is executing the second mode or the third mode, the process of S303 is then executed. In S303, in the second user terminal 300, it is displayed that a call cannot be made to the notification device 100 currently.

[0066] According to the above process, when the second user desires to use the second user terminal 300 to make a call to the first user during a period when calls cannot be made, the second user terminal 300 can notify the second user that calls cannot be made.

[0067] Variant

[0068] In the above system 1, the operation for determining whether a reminder notification should be sent to the first user in the reminder notification process is executed by the control unit 110 of the notification device 100. However, this operation can also be executed by the management server 200. In this case, the location information of the notification device 100 and the detection values of the motion sensor 150 are sent from the notification device 100 to the management server 200. Moreover, when the result of the operation in the management server 200 is determined that a reminder notification should be sent to the first user, an instruction to send the reminder notification is sent from the management server 200 to the notification device 100. And when the notification device 100 receives the send instruction from the management server 200, the control unit 110 sends a reminder notification via the speaker 160.

[0069] In addition, the notification device 100 and the second user terminal 300 can also have a chat function. In this case, in the notification device 100, the chat function can also be turned on in the first mode and turned off in the second mode and the third mode which are power-saving modes, in the same way as the call function.

[0070] Other embodiments

[0071] The above embodiments are merely examples, and the present disclosure can be appropriately modified and implemented without departing from its gist. In addition, as long as there is no technical contradiction, the processes and components described in the present disclosure can be freely combined and implemented.

[0072] In addition, the processes described as being performed by one device can also be executed by multiple devices sharing the work. Or, the processes described as being performed by different devices can also be executed by one device. In a computer system, how to implement each function with what kind of hardware configuration (server configuration) can be flexibly changed.

[0073] The present disclosure can also be implemented in the following manner: A computer program that implements the functions described in the above embodiments is supplied to a computer, and the program is read and executed by one or more processors included in the computer. Such a computer program can be provided to the computer either via a non-transitory computer-readable storage medium connectable to the system bus of the computer or via a network. The non-transitory computer-readable storage medium includes, for example, any type of disk such as a magnetic disk (e.g., a floppy disk (registered trademark), a hard disk drive (HDD)), an optical disk (e.g., a CD-ROM (Compact Disc Read Only Memory), a DVD disc (Digital Versatile Disc), a Blu-ray disc), a read-only memory (ROM), a random access memory (RAM), an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a magnetic card, a flash memory, or an optical card, which are any type of media suitable for storing electronic commands.

Claims

1. A notification device, held by a user, wherein: The notification device includes a control unit capable of switching between a first mode and a second mode. The first mode is a mode in which location information indicating the location of the notification device is transmitted to a predetermined external device at a first cycle and the reminder notification is issued when a condition for issuing a reminder notification for prompting the user to take safety actions is satisfied. The second mode is a mode in which the position information is transmitted to the prescribed external device at a second cycle longer than the first cycle and issuance of the reminder notification is turned off.

2. The notification device according to claim 1, wherein: The control unit has a calculation function of determining whether the issuance condition is satisfied based on at least the position information. In the second mode, the computing function is stopped.

3. The notification device according to claim 1, wherein: can set a time period during which the second mode should be executed, During the set time period, the control unit executes the second mode.

4. The notification device according to claim 1, wherein: The control unit switches from the second mode to the first mode when walking of the user holding the notification device is detected during execution of the second mode.

5. A program product comprising a program for controlling a terminal capable of communicating with the notification device according to any one of claims 1 to 4, wherein: The user is a first user, When the second mode is being executed in the notification device, if a second user different from the first user operates the terminal to communicate with the notification device, the program causes the terminal to display that communication with the notification device is currently unavailable.

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