Notification device and program

Abstract

To suitably transmit position information to an external device in a notification device and suppress power consumption while ensuring transmission of a reminder notification necessary for a user.SOLUTION: A notification device carried by a user includes a control unit capable of switching between a first mode and a second mode. The first mode is a mode in which position information indicating a position of the notification device is transmitted to a predetermined external device in a first cycle, and a remind notification is transmitted when transmission conditions of the remind notification for prompting a user to take a safe action is satisfied. Further, in the second mode, the position information is transmitted to the predetermined external device in a second cycle longer than the first cycle, and the transmission of the remind notification is turned off.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a technique for transmitting a notification that prompts a user to perform a safe action.

Background Art

[0002] Patent Document 1 discloses a technique related to power control of a mobile terminal carried by a carrier. In the technique disclosed in Patent Document 1, when a first condition is satisfied when the current position is a preset position, the mobile terminal is controlled to a power-saving state. Further, when a second condition is satisfied when the current position is a position other than the set position, the mobile terminal is controlled to a power-saving state.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present disclosure is to suppress power consumption while suitably transmitting position information to an external device and ensuring the transmission of necessary reminder notifications to a user in a notification device.

Means for Solving the Problems

[0005] A notification device according to a first aspect of the present disclosure is a notification device possessed by a user, comprising a control unit capable of switching between a first mode and a second mode, wherein the first mode is a mode in which position information indicating the position of the notification device is transmitted to a predetermined external device at a first period, and the reminder notification is transmitted when a transmission condition of the reminder notification for prompting a user to perform a safe action is satisfied. The second mode is a mode in which the position information is transmitted to the predetermined external device in a second period longer than the first period, and the transmission of the reminder notification is turned off.

[0006] A program according to a second aspect of the present disclosure is a program for controlling a terminal capable of communicating with the notification device according to the first aspect, wherein the user is a first user, when an operation for making a call to the notification device is performed on the terminal by a second user different from the first user while the second mode is being executed in the notification device, the terminal is caused to display that a call to the notification device is currently unavailable.

Advantages of the Invention

[0007] According to the present disclosure, in the notification device, it is possible to suitably transmit position information to an external device and suppress power consumption while ensuring the transmission of necessary reminder notifications to the user.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0009] The notification device according to the present disclosure is a device held by a user. The notification device has a function of transmitting a reminder notification to the user who holds 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 for ensuring the safety of the user himself / herself. The safe action prompted to the user by the reminder notification may be changed according to, for example, the position of the user.

[0010] Furthermore, the notification device has a function of transmitting position information indicating the position of the notification device, that is, the position of the user who holds the notification device (hereinafter, may also be referred to as the "first user"), to a predetermined external device. As a result, a user different from the first user (hereinafter, may also be referred to as the "second user") can receive the position information of the first user on his / her own terminal via the predetermined external device. As a result, the second user can grasp the position of the first user.

[0011] Also, 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 position information is transmitted to a predetermined external device at a first period, and a reminder notification is transmitted when the transmission condition of the reminder notification is satisfied. The transmission condition is, for example, that the first user is present at a place where a safe action should be taken. Also, the transmission condition may be that the first user is performing an action that should prompt a safe action for the first user. On the other hand, the second mode is a mode in which the position information is transmitted to a predetermined external device at a second period longer than the first period, and the transmission of the reminder notification is turned off.

[0012] In the notification device according to the present disclosure, when the first mode is executed by the control unit, the second user can grasp the position of the first user in the first cycle, and can send a reminder notification when it is necessary to prompt the first user to take safe actions. Further, when there is no need to prompt the first user to take safe actions, the control unit can be made to execute the second mode in the notification device. In a scenario where there is no need to prompt the first user to take safe actions, it is considered that the necessity for the second user to grasp the position of the first user also decreases. Therefore, in the second mode, the transmission cycle of the position information is made longer than that in the first mode. Further, in the second mode, the reminder notification is not sent. Therefore, by executing the second mode by the control unit, power consumption in the notification device can be suppressed.

[0013] Therefore, according to the notification device according to the present disclosure, it is possible to suitably transmit position information to an external device, ensure the transmission of necessary reminder notifications to the user, and suppress power consumption.

[0014] Hereinafter, specific embodiments of the present disclosure will be described with reference to the drawings. The dimensions, materials, shapes, relative arrangements, etc. of the component parts described in this embodiment are not intended to limit the technical scope of the present disclosure only to those, unless otherwise specified.

[0015] <Embodiment> (System Outline) FIG. 1 is a diagram showing an outline of the system according to the present embodiment. The system 1 is a system for remotely monitoring a first user. Here, the first user may be, for example, a child. The system 1 includes a notification device 100, a management server 200, and a second user terminal 300. including.

[0016] 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 transmitting a reminder notification. The reminder notification is a notification for prompting the first user to take safe actions. The notification device 100 may transmit, as the reminder notification, a voice such as "Check left and right!" For example. Also, the notification device 100 has a function of performing data communication with the management server 200. Then, the notification device 100 transmits position information indicating the position of the notification device 100, that is, the position of the first user holding the notification device 100, to the management server 200.

[0017] Also, the second user terminal 300 is a terminal related to the second user. The second user is a user who monitors the first user. The second user may be, for example, a parent of the first user. In the system 1, a second user terminal 300 corresponding to the notification device 100 is preset. The second user terminal 300 may be, for example, a smartphone, a tablet computer, a mobile computer, or a wearable computer. Also, the second user terminal 300 has a function of performing data communication with the management server 200. Then, the second user terminal 300 receives from the management server 200 the position information of the first user that the management server 200 has received from the notification device 100. As a result, the second user can grasp the position of the first user.

[0018] Also, the second user terminal 300 has a function of transmitting, via the management server 200, data for performing various settings in the notification device 100 to the notification device 100. The notification device 100, the second user terminal 300, and the management server 200 are interconnected by a network. Here, as the network, for example, a mobile communication network using a predetermined standard such as LTE (Long Term Evolution) or 5G may be adopted.

[0019] Furthermore, 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 with each other through the call function of the notification device 100 and the second user terminal 300.

[0020] (Configuration of the Notification Device) Next, the configuration of the notification device 100 will be described. FIG. 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 receiver 140, a motion sensor 150, a speaker 160, a display 170, a data communication module 180, and a call module 190.

[0021] 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). Note that the CPU is an example of a processor resource. Also, the RAM and ROM are examples of memory resources. The control unit 110 can execute arbitrary information processing based on various programs and various data. However, some or all of the functions of the control unit 110 may be realized by a hardware circuit such as an ASIC or an FPGA.

[0022] The storage unit 120 is constituted by an arbitrary storage device such as a RAM, a ROM, or a flash memory. The storage unit 120 may include a removable medium (portable recording medium). Here, the removable medium may be, for example, a USB memory or an SD card. Programs executed by the control unit 110 and various data used for the execution of the programs are stored in the storage unit 120.

[0023] In addition, in the storage unit 120, a safety confirmation point database (safety confirmation point DB) 121 and a schedule database (schedule DB) 122 are constructed. In the safety confirmation point DB 121, information regarding a safety confirmation point, which is a geographical point (or area) where the first user should be prompted to perform safe behavior, is stored. The safety confirmation point may include, for example, intersections, crosswalks, railroad crossings, and parking lots. Also, the safety confirmation point may be set based on past accident information or disaster information. Further, based on the driving data collected from each vehicle traveling on the road, a point where many vehicles exhibit specific behaviors (for example, ignoring a stop sign, sudden braking, etc.) may be set as the safety confirmation point. Also, the system 1 may be configured so that the second user can add and register a new safety confirmation point to the safety confirmation point DB 121 using the second user terminal 300. In the schedule DB 122, information regarding the time zone during which the notification device 100 should execute the power saving mode is stored. Note that the details of the power saving mode will be described later.

[0024] 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, the motion sensor 150 includes sensors such as an angular velocity sensor, an acceleration sensor, and a geomagnetic sensor. The speaker 160 emits a voice for a reminder notification. The display 170 displays the state of the notification device 100. Also, the display 170 may display the reminder notification as text or an image. Further, the display 170 may be a touch panel display that accepts input operations.

[0025] 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 may be a wireless communication circuit for performing wireless communication according to a communication standard adopted by the network. The notification device 100 performs data communication with the management server 200 via the data communication module 180. Also, the call module 190 is an interface for voice calls. The notification device 100 makes a call with the second user terminal 300 via the call module 190.

[0026] Note that the management server 200 is a computer including a control unit, a storage unit, and a data communication module. Also, the second user terminal 300 includes a control unit, a storage unit, a data communication module, and a call module.

[0027] (Reminder notification process) Here, a process for transmitting a reminder notification, which is 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 predetermined cycle. The current position of the notification device 100 acquired by the GPS receiver 140 is input to the control unit 110. Also, information regarding a plurality of safety confirmation points is stored in the safety confirmation point DB 121 of the storage unit 120. And reminder notifications corresponding to safety actions to be prompted to the first user are set for each safety confirmation point.

[0028] 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 plurality of safety confirmation points stored in the safety confirmation point DB 121. And when the current position of the notification device 100 is located at one of the plurality of safety confirmation points, the control unit 110 transmits the reminder notification corresponding to the one safety confirmation point via the speaker 160. Note that, in this case, the fact that the current position of the notification device 100 is located at any of the plurality of safety confirmation points corresponds to the "transmission condition" according to the present disclosure.

[0029] In addition, the control unit 110 may determine whether to send a reminder notification with reference to not only the position of the notification device 100 but also 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. When the current position of the notification device 100 is located at a specific safety confirmation point, the control unit 110 determines based on the detection value of the motion sensor 150 whether the first user is performing an action that should prompt a safe action. At this time, if it is determined that the first user is performing an action that should prompt a safe action, the control unit 110 sends a reminder notification corresponding to the action taken by the first user via the speaker 160. Thereby, for example, when it is determined that the first user is running at a safety confirmation point with a large vehicle traffic volume, a voice such as "Running is dangerous" is sent from the speaker 160 as a reminder notification. In this case, the fact that the first user is performing an action that should prompt a safe action is also included in the "transmission condition" according to the present disclosure.

[0030] (Control mode) Next, the control mode of the notification device 100 will be described. The notification device 100 includes a first mode, a second mode, and a third mode as control modes. These control modes are switched by the control unit 110. The first mode is a mode in which the above-described reminder notification process is executed. Further, in the first mode, the current position of the notification device 100 (the current position of the first user) acquired by the GPS receiver 140 is transmitted to the management server 200 via the data communication module 180 at a predetermined first cycle. 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. Therefore, by executing the first mode by the control unit 110, the second user can grasp the position of the first user at the first cycle, and it is possible to send a reminder notification from the notification device 100 when a safe action should be prompted to the first user.

[0031] However, it is not always necessary to monitor the first user. For example, when the first user is in a relatively safe place such as a school, the need to grasp the position of the first user and send 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.

[0032] FIG. 3 is a diagram showing the states of the respective functions of the notification device 100 in each control mode. Here, the uppermost row of FIG. 3 lists the respective functions of the notification device 100. The data communication function is a function of transmitting data to the management server 200 via the data communication module 180. The position information transmission function is a function of acquiring the current position of the notification device 100 by the GPS receiver 140 and transmitting the position information to the management server 200. The reminder arithmetic function is a function of executing an arithmetic operation for determining whether or not to send a reminder notification to the first user in the reminder notification process. The voice transmission function is a function of transmitting the reminder notification via the speaker 160. The walking detection arithmetic function is a function of executing an arithmetic operation for detecting that the first user is walking using the detection value of the motion sensor 150. The call function is a function of making a call to the second user terminal 300 via the call module 190.

[0033] Each function shown in FIG. 3 is switched between ON and OFF by the control unit 110. And the control unit 110 realizes each control mode by switching between ON and OFF of each function. Here, in the first mode, all of the various functions shown in FIG. 3 are turned ON. At this time, the transmission of the position information to the management server 200 is executed in the first cycle as described above. Also, by turning ON the reminder arithmetic function and the voice transmission function, the above-described reminder notification process is executed. Also, in the first mode, by turning ON the call function, the first user and the second user can make a call.

[0034] On the other hand, in the third mode, all of the various functions shown in FIG. 3 are turned off. Therefore, in the third mode, neither the transmission of location information to the management server 200 nor the reminder notification process is executed. Also, the first user and the second user cannot make a call using the notification device 100 and the second user terminal 300.

[0035] In the third mode, by turning off the various functions as described above, power consumption in the notification device 100 can be suppressed. However, even in a scenario where there is no need to prompt the first user to take safe actions through the reminder notification process, there may be a case where the second user wants to know the location of the first user. However, even in such a case, compared to the case where it is necessary to prompt the first user to take safe actions, the necessity for the second user to know the location of the first user is considered to be reduced. Therefore, in the second mode, among the various functions shown in FIG. 3, the data communication function and the location information transmission function are turned on, and the other functions are turned off. At this time, the transmission of location information to the management server 200 is executed at a predetermined second cycle that is longer than the first cycle, which is the data transmission cycle in the first mode. In this way, in the second mode, the transmission cycle of location information is set longer than the transmission cycle in the first mode, and the reminder notification process is not performed. Therefore, even in the second mode, power consumption in the notification device 100 can be suppressed compared to the first mode.

[0036] Here, the second user can set the schedule of the control mode of the notification device 100 using the second user terminal 300. Specifically, the second user inputs to the second user terminal 300 the time zone during which the second mode and / or the third mode, which are power-saving modes, should be executed. Then, the information regarding the time zone input to the second user terminal 300 is transmitted to the notification device 100 via the management server 200. In the notification device 100, when receiving the information regarding the time zone during which the second mode and / or the third mode should be executed from the management server 200, the control unit 110 stores the information in the schedule DB 122. Thereby, the second user can set the schedule of the control mode of the notification device 100 according to the action schedule of the first user.

[0037] And in the notification device 100, the control unit 110 selects and executes a control mode based on the schedule stored in the schedule DB 122. FIG. 4 is a flowchart showing the flow of the control mode selection process in the notification device 100. This flow is executed by the control unit 110 at a predetermined period.

[0038] In this flow, first, in S101, it is determined whether the current time is a time zone in which the power saving mode should be executed. Specifically, it is determined whether the current time is within the time zone in which the second mode should be executed or within the time zone in which the third mode should be executed, which are stored in the schedule DB 122. At this time, if the time zones in which the second mode and the third mode should be executed are not stored in the schedule DB 122, a negative determination is made in S101. Also, even if the time zones in which the second mode and / or the third mode should be executed are stored in the schedule DB 122, if the current time is not within these time zones, a negative determination is made in S101. If a negative determination is made in S101, it can be determined that the execution of the power saving mode is unnecessary. In this case, the process of S102 is then executed. In S102, the first mode is executed as the control mode.

[0039] On the other hand, if an affirmative determination is made in S101, the process of S103 is then executed. In S103, it is determined whether the current time is a time zone in which the second mode should be executed. At this time, if the time zone in which the second mode should be executed is stored in the schedule DB 122 and the current time is within that time zone, 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.

[0040] On the other hand, if the time period during which the second mode should be executed is not stored in the schedule DB 122, a negative determination is made in S103. Also, even if the time period during which the second mode should be executed is stored in the schedule DB 122, if the current time is not within that time period, a negative determination is made in S103. When a negative determination is made in S103, it can be determined that the current time is within the time period during which the third mode should be executed. In this case, the process of S105 is then executed. In S105, the third mode is executed as the control mode.

[0041] According to the above, each control mode can be executed on the notification device 100 according to the schedule set by the second user.

[0042] (Release Control of the Second Mode) Next, the release control of the second mode will be described. There may be a case where the first user sets the time period during which the first user spends time in school or a specific facility as the time period during which the second mode should be executed. This is because it is considered that there is no need to prompt the first user to act safely in school or a specific facility. And while the first user is spending time in school or a specific facility, the notification device 100 may be placed at a fixed position. In this case, in other words, while the position of the notification device 100 has not moved from the fixed position, it can be determined that the first user is present in school or a specific facility.

[0043] However, the action schedule of the first user may be unexpectedly changed. For example, the departure time of the first user from school or a specific facility may be earlier than planned. In this case, on the premise that the first user is spending time in school or a specific facility, even though it is within the time period set as the time period during which the second mode should be executed, the first user will move from school or a specific facility. In such a case, it is preferable that the first mode is executed at the timing when the first user moves from school or a specific facility.

[0044] Therefore, when the above - mentioned case occurs in the notification device 100, release control of the second mode is executed to switch the control mode from the second mode to the first mode. FIG. 5 is a flowchart showing the flow of the release control of the second mode. This flow is executed at a predetermined period by the control unit 110 when the second mode is being executed in the notification device 100.

[0045] In this flow, first, at S201, the detection value of the motion sensor 150 is acquired. Next, at S202, based on the detection value of the motion sensor 150 acquired at S201, it is determined whether the first user is walking.

[0046] As described above, while the first user is staying in school or a specific facility, the notification device 100 is placed at a fixed position. Therefore, normally, during this period, a detection value indicating the walking of the first user is not detected by the motion sensor 150. Therefore, when a detection value indicating the walking of the first user is detected from the motion sensor 150, it can be determined that the first user has moved the notification device 100 from the fixed position, that is, the first user is trying to move from school or a specific facility.

[0047] Therefore, when a negative determination is made at S202, the execution of this flow 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 at S202, the process of S203 is then executed. Note that at S202, the detection value of the motion sensor 150 may be determined affirmatively when it indicates that the first user has been walking for a predetermined period or more. At S203, in the notification device 100, the second mode is released and the control mode is switched to the first mode.

[0048] ​According to the above flow, when the first user attempts to move from school or a specific facility within the time period for executing the second mode stored in the schedule DB 112, the control mode in the notification device 100 can be switched from the second mode to the first mode.

[0049] Note that after the second mode is cancelled by the above-described second mode cancellation control, if a detection value indicating the walking of the first user is not detected from the motion sensor 150 for a predetermined period, it is highly likely that the first user did not actually move from school or a specific facility. Therefore, in such a case, the control unit 110 may return the control mode of the notification device 100 from the first mode to the second mode.

[0050] (Call Unavailable Notification) Next, the call unavailable notification control executed in the second user terminal 3 will be described. As described above, in the notification device 100, when the second mode or the third mode, which is the power saving mode, is executed as the control mode, the call function is turned off. However, even during the time period when the power saving mode is executed in the notification device 100, the second user may attempt to call the first user using the second user terminal 300. Therefore, in this embodiment, in such a case, call unavailable notification control is executed in the second user terminal 300 to notify the second user that a call to the notification device 100 (a call to the first user) is unavailable.

[0051] FIG. 6 is a flowchart showing the flow of the call unavailable notification control. This flow is executed by the control unit of the second user terminal 300 when a call operation is performed on the second user terminal 300. In this flow, first, in S301, it is determined whether a call operation for calling 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 flow is terminated once.

[0052] On the one 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 sets the schedule of the control mode of the notification device 100, the time period during which the second mode should be executed and / or the time 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, based on the time period during which the second mode should be executed and / or the time 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, it may be determined whether the power-saving mode is currently being executed in the notification device 100. Also, information regarding the currently executed control mode may be received from the notification device 100 via the management server 200.

[0053] If a negative determination is made in S302, that is, if the first mode is being executed in the notification device 100, the process of S304 is then executed. In S304, a call is made to the notification device 100. On the other hand, if an affirmative determination is made in S302, that is, if the second mode or the third mode is being executed in the notification device 100, the process of S303 is then executed. In S303, it is displayed on the second user terminal 300 that a call to the notification device 100 is currently unavailable.

[0054] According to the above flow, when the second user attempts to call the first user using the second user terminal 300 during a time period when calls are unavailable, the second user terminal 300 can notify the second user that calls are unavailable.

[0055] (Modification example) In the above-described system 1, the calculation for determining whether to send a reminder notification to the first user in the reminder notification process is executed by the control unit 110 of the notification device 100. However, this calculation may be executed by the management server 200. In this case, the position information of the notification device 100 and the detection value of the motion sensor 150 are transmitted from the notification device 100 to the management server 200. Further, as a result of the calculation in the management server 200, if it is determined that a reminder notification should be sent to the first user, a transmission command for the reminder notification is transmitted from the management server 200 to the notification device 100. Then, when the notification device 100 receives the transmission command from the management server 200, the control unit 110 sends the reminder notification via the speaker 160.

[0056] Also, the notification device 100 and the second user terminal 300 may have a chat function. In this case, in the notification device 100, the chat function may be turned on in the first mode, similar to the call function, and turned off in the second mode and the third mode, which are power-saving modes.

[0057] <Other Embodiments> The above embodiments are merely examples, and the present disclosure can be appropriately modified and implemented without departing from the gist thereof. Also, the processes and means described in the present disclosure can be freely combined and implemented as long as no technical contradiction occurs.

[0058] Also, the processes described as being performed by one device may be shared and executed by a plurality of devices. Alternatively, the processes described as being performed by different devices may be executed by one device. In a computer system, how each function is realized by a hardware configuration (server configuration) can be flexibly changed.

[0059] The present disclosure can also be realized by supplying a computer program that implements the functions described in the above embodiments to a computer and causing one or more processors included in the computer to read and execute the program. Such a computer program may be provided to the computer by a non-transitory computer-readable storage medium connectable to the system bus of the computer, or may be provided to the computer 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 (registered trademark) disk, a hard disk drive (HDD), etc.), an optical disk (e.g., a CD-ROM, a DVD disk, a Blu-ray disk, etc.), a read-only memory (ROM), a random access memory (RAM), an EPROM, an EEPROM, a magnetic card, a flash memory, or any type of medium suitable for storing electronic instructions, such as an optical card.

Explanation of Signs

[0060] 1 ··· System 100 ··· Notification device 110 ··· Control unit 120 ··· Storage unit 121 ··· Safety confirmation point database 122 ··· Schedule database 130 ··· Battery 140 ··· GPS receiver 150 ··· Motion sensor 160 ··· Speaker 170 ··· Display 180 ··· Data communication module 190 ··· Call module 200 ··· Management server 300 ··· Second user terminal

Claims

1. A notification device held by a user, comprising a control unit capable of switching between a first mode and a second mode, wherein in the first mode, position information indicating the position 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 safe actions is transmitted when the transmission condition is satisfied, and in the second mode, the position information is transmitted to the predetermined external device at a second period longer than the first period, and the transmission of the reminder notification is turned off. Notification device.

2. The control unit has an arithmetic function for determining whether or not the transmission condition is satisfied based at least on the position information, and the arithmetic function is stopped in the second mode. The notification device according to Claim 1.

3. It is possible to set a time zone in which the second mode should be executed, and in the set time zone, the control unit executes the second mode. The notification device according to Claim 1.

4. During the execution of the second mode, if the walking of the user holding the notification device is detected, the control unit switches from the second mode to the first mode. The notification device according to Claim 1.

5. 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, and when an operation for making a call to the notification device is performed on the terminal by a second user different from the first user while the second mode is being executed in the notification device, the terminal is caused to display that a call to the notification device is currently unavailable. Program.

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