Terminal separation time notification system and terminal separation time notification program

Abstract

To provide a terminal separation time notification system for performing notification when multiple terminals are separated by predetermined distance in a state of being connected by short-range radio communication means.SOLUTION: A terminal separation time notification system includes: a distance calculation unit 34 for, based on position information of a portable terminal 1 capable of independently communicating with a server device 3 and position information of a wrist watch type terminal incapable of independently communicating with the server device 3 but capable of communicating with the server device 3 by being connected to the portable terminal 1 by short-range radio communication means, calculating inter-terminal distance between the portable terminal 1 and the wrist watch type terminal; a distance determination unit 36 for determining whether or not the inter-terminal distance is equal to or greater than a threshold; and a transmission / reception unit 32 for transmitting a notification signal to the portable terminal 1 and / or the wrist watch type terminal 2. The threshold is set to be shorter than connectable distance by the short-range radio communication means, and the transmission / reception unit 32 transmits the notification signal when the inter-terminal distance is equal to or greater than the threshold.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a terminal separation notification system and a terminal separation notification program that notifies a user from a notification unit of a terminal when multiple terminals connected by short-range wireless communication means are separated by a predetermined distance or more. [Background technology]

[0002] Wearable devices such as smartwatches that do not have a SIM (Subscriber Identity Module) card cannot independently communicate wirelessly with a server device on the Internet. On the other hand, smartphones that have a SIM card can independently communicate wirelessly with a server device. Therefore, by connecting the wearable device to the smartphone using a short-range wireless communication method such as Bluetooth (registered trademark), the wearable device can communicate wirelessly with the server device.

[0003] Smartphones and wearable devices can be carelessly left behind by users or lost without the user's knowledge. In such cases, there is a known invention that, when a user has one of a smartphone and a wearable device and the other is left behind, if the two devices are separated by a distance that is greater than the distance at which they can be connected via short-range wireless communication means and a disconnection via the short-range wireless communication means is detected, an alarm sounds on the smartphone and the wearable device to alert the user (see Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2016-520813 Summary of the Invention [Problem to be solved by the invention]

[0005] The invention described in Patent Document 1 sounds an alarm when a connection via short-range wireless communication is disconnected. However, even if a user realizes that they have left their smartphone or wearable device behind after the connection is disconnected, the smartphone and wearable device cannot communicate with each other because they are no longer connected via short-range wireless communication. Therefore, the user must search for the location where they think they left their smartphone or wearable device, which can take time. Furthermore, by moving within a range where they can connect via short-range wireless communication, the smartphone and wearable device can be reconnected and an alarm can be sounded on the lost smartphone or wearable device, allowing the user to identify the location where they left their smartphone or wearable device. However, it may be unclear in which direction the smartphone and wearable device should be moved to bring them closer, and it may take time to reconnect via short-range wireless communication.

[0006] Therefore, the present invention aims to solve the above problems and provide a terminal separation notification system that notifies when multiple terminals connected via short-range wireless communication means become separated by more than a predetermined distance. [Means for solving the problem]

[0007] The terminal separation notification system of the present invention comprises a distance calculation unit that calculates the inter-terminal distance between the first terminal and the second terminal based on location information of a first terminal that can communicate with a server device independently and location information of a second terminal that cannot communicate with the server device independently but can communicate with the server device by being connected to the first terminal via short-range wireless communication means; a distance determination unit that determines whether the inter-terminal distance is equal to or greater than a threshold; and a transmission unit that transmits a notification signal to the first terminal and / or the second terminal, wherein the threshold is set shorter than the connectable distance via the short-range wireless communication means, and the transmission unit transmits the notification signal when the inter-terminal distance is equal to or greater than the threshold.

[0008] The terminal separation notification program of the present invention includes a distance calculation unit that calculates the inter-terminal distance between a first terminal and a second terminal based on location information of a first terminal that can communicate independently with a server device and location information of a second terminal that cannot communicate independently with the server device but can communicate with the server device by being connected to the first terminal via short-range wireless communication means; a distance determination unit that determines whether the inter-terminal distance is equal to or greater than a threshold; and a transmission unit that transmits a notification signal to the first terminal and / or the second terminal, wherein the threshold is set shorter than the connectable distance via the short-range wireless communication means, and the program controls the distance calculation unit to calculate the inter-terminal distance based on the location information of the first terminal and the location information of the second terminal, controls the distance determination unit to determine whether the inter-terminal distance is equal to or greater than the threshold, and controls the transmission unit to transmit a notification signal if the inter-terminal distance is equal to or greater than the threshold. [Effects of the Invention]

[0009] According to the terminal separation notification system and terminal separation notification program of the present invention, when multiple terminals are connected via short-range wireless communication means, a notification can be sent when they are separated by more than a predetermined distance. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is an explanatory diagram illustrating an overview of a terminal separation notification system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a block diagram showing the electrical configuration of the mobile terminal according to the first embodiment. [Figure 3] FIG. 2 is a block diagram showing the electrical configuration of the wristwatch-type terminal of the first embodiment. [Figure 4] FIG. 2 is a block diagram showing the electrical configuration of the server device according to the first embodiment. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] 10 is an explanatory diagram showing the mobile terminal and the wristwatch-type terminal when they are spaced apart. FIG. [Figure 8]10 is a flowchart showing the procedure up to transmission of a notification signal by the server device. DETAILED DESCRIPTION OF THE INVENTION

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Note that not all of the configurations described below are essential requirements for the present invention.

[0012] FIG. 1 shows an overview of a terminal separation notification system according to an embodiment of the present invention. The main components of the terminal separation notification system are a mobile terminal 1, which is a multifunctional communication terminal; a wristwatch-type terminal 2, which is a wristwatch-type multifunctional wearable device; and a server device 3 capable of two-way wireless communication with the mobile terminal 1. The mobile terminal 1 is equipped with a SIM (Subscriber Identity Module) card (not shown), and can independently communicate wirelessly with the server device 3 on the Internet using wireless communication means 4. On the other hand, the wristwatch-type terminal 2 does not have a SIM card, and cannot independently communicate wirelessly with the server device 3. However, the wristwatch-type terminal 2 can wirelessly communicate with the mobile terminal 1 using short-range wireless communication means 5, such as Bluetooth (registered trademark), and can wirelessly communicate with the server device 3 via the mobile terminal 1.

[0013] The first terminal, ie, portable terminal 1, is a so-called smartphone, and is carried by user P in a pocket or the like. FIG. 2 shows the main electrical configuration of portable terminal 1. In the figure, portable terminal 1 comprises control means 11, a GPS (Global Positioning System) receiving unit 12, a transmitting / receiving unit 13, a memory unit 14, a display unit 15, an operation unit 16, and a notification unit 17.

[0014] The control means 11 includes a CPU (Central Processing Unit) and controls the entire portable terminal 1 based on a program 18 stored in the storage unit 14. The CPU executes calculations in accordance with the program 18, thereby realizing each function of the portable terminal 1. The program 18 includes a location information transmission program for transmitting location information received from the artificial satellite 6 to the server device 3, and an alarm program for issuing an alarm via the display unit 15 and the alarm unit 17 when a notification signal, which will be described later, is received.

[0015] The GPS receiver 12 measures the three-dimensional position (longitude, latitude, and altitude) of the mobile terminal 1 by wirelessly receiving radio waves from multiple artificial satellites 6, and transmits this position information (hereinafter referred to as "mobile terminal position information") to the control means 11. Note that a position detection device other than the GPS receiver 12 may be used as long as it can detect the current position of the mobile terminal 1. The artificial satellite 6 is equipped with an atomic clock. An extremely accurate time signal wave is transmitted from this artificial satellite 6 at a specific frequency, and the time axis of the mobile terminal 1 is determined by receiving this signal by the GPS receiver 12. In this embodiment, the artificial satellite 6 and the GPS receiver 12 function as the position measurement means for the mobile terminal 1.

[0016] The transmitting / receiving unit 13 enables two-way communication with the wristwatch type terminal 2 via the short-range wireless communication means 5, and the mobile terminal 1 can transmit and receive data including various information to and from the wristwatch type terminal 2. The transmitting / receiving unit 13 also enables two-way communication between the mobile terminal 1 and a server device 3 installed on the Internet via the wireless communication means 4. Therefore, the mobile terminal 1 can transmit and receive data including various information to and from the server device 3.

[0017] The storage unit 14 is configured using various storage devices such as a magnetic hard disk drive and a semiconductor storage device, and is capable of writing and reading various information such as the location information of the mobile terminal 1 received by the GPS receiving unit 12.

[0018] The display unit 15 receives display control signals from the control means 11 and performs various displays. The display unit 15 is configured with a liquid crystal module and a liquid crystal panel that are exposed on the front of the main body of the mobile terminal 1, and as is well known, these liquid crystal modules and liquid crystal panels perform display using a dot matrix in which a large number of sub-pixels are arranged in a grid pattern.

[0019] The operation unit 16 receives an operation by the user P and transmits an electrical operation signal to the control means 11. In the mobile terminal 1 of this embodiment, the display unit 15 is a touch panel, and the surface of the display unit 15 functions as the operation unit 16 that can be touched (tapped).

[0020] The notification unit 17 notifies the user P of the information stored in the memory unit 14 by voice or the like, and is, for example, a speaker that outputs voice or a vibrator that generates vibrations. In addition, when the information stored in the memory unit 14 is displayed on the display unit 15 by characters, figures, symbols, or the like, the display unit 15 also functions as the notification unit 17.

[0021] The second terminal, wristwatch type terminal 2, is a so-called smart watch, and is worn on the wrist of user P. Fig. 3 shows the main electrical configuration of wristwatch type terminal 2. In the figure, wristwatch type terminal 2 comprises control means 21, a GPS receiving unit 22, a transmitting / receiving unit 23, a memory unit 24, a display unit 25, an operation unit 26, and a notification unit 27.

[0022] The control means 21 includes a CPU and controls the entire wristwatch type terminal 2 based on a program 28 stored in the storage unit 24. The CPU executes calculations in accordance with the program 28, thereby realizing each function of the wristwatch type terminal 2. The program 28 includes a location information transmission program for transmitting location information received from the artificial satellite 6 to the server device 3, and an alarm program for issuing an alarm via the display unit 25 and the alarm unit 27 when a notification signal, which will be described later, is received.

[0023] The control means 21 has a sound generation instruction unit 29 that transmits an instruction signal to instruct the portable terminal 1 to emit a sound. The sound generation instruction unit 29 receives an operation of the operation unit 26 by the user P and transmits the instruction signal to the portable terminal 1.

[0024] The control means 21 has a location information acquisition unit 30 that transmits an instruction signal to the server device 3 to instruct it to transmit the mobile terminal location information stored in the storage unit 33 to the wristwatch-type terminal 2. The location information acquisition unit 30 receives an operation by the user P on the operation unit 26 and transmits the instruction signal to the server device 3.

[0025] The GPS receiver 22 measures the three-dimensional position (longitude, latitude, and altitude) of the wristwatch type terminal 2 by wirelessly receiving radio waves from multiple artificial satellites 6, and transmits this position information (hereinafter referred to as "wristwatch type terminal position information") to the control means 21. Note that a position detection device other than the GPS receiver 22 may be used as long as it can detect the current position of the wristwatch type terminal 2. The artificial satellite 6 is equipped with an atomic clock. This artificial satellite 6 transmits an extremely accurate time signal wave at a specific frequency, and the time axis of the wristwatch type terminal 2 is determined by receiving this signal wave from the artificial satellite 6. As described above, the time axis of the mobile terminal 1 is also determined by receiving a time signal wave from the artificial satellite 6, so the time axes of the mobile terminal 1 and the wristwatch type terminal 2 are synchronized by using the radio waves received from the artificial satellite 6. In this embodiment, the artificial satellite 6 and the GPS receiver 22 function as the position measurement means of the wristwatch type terminal 2.

[0026] The transmitter / receiver 23 enables two-way communication with the mobile terminal 1 via the short-range wireless communication means 5, and the wristwatch type terminal 2 can transmit and receive data including various information to and from the mobile terminal 1. As described above, the wristwatch type terminal 2 of this embodiment does not have a SIM card, so communication with the server device 3 is performed via the mobile terminal 1 connected by the short-range wireless communication means 5.

[0027] The storage unit 24 is configured using various storage devices such as a magnetic hard disk drive and a semiconductor storage device, and is capable of writing and reading various information such as the position information of the wristwatch-type terminal 2 received by the GPS receiving unit 22. The storage unit 14 also stores and holds information such as a warning message T, which will be described later.

[0028] The display unit 25 receives display control signals from the control means 21 and performs various displays. The display unit 25 is composed of a liquid crystal module and a liquid crystal panel, and as is well known, these liquid crystal modules and liquid crystal panels perform display using a dot matrix in which a large number of sub-pixels are arranged in a grid pattern.

[0029] The operation unit 26 receives operations by the user P and transmits an electrical operation signal to the control means 21. The operation unit 26 includes one or more buttons 26A provided on the main body of the wristwatch-type terminal 2, and a transparent touch panel or the like provided on the surface of the display unit 25 also functions as the operation unit 26.

[0030] The notification unit 27 notifies the user P of the information stored in the memory unit 24 by voice or the like, and is, for example, a speaker that outputs voice or a vibrator that generates vibrations. When the information stored in the memory unit 24 is displayed on the display unit 25 by characters, figures, symbols, or the like, the display unit 25 also functions as the notification unit 27.

[0031] 4 shows the electrical configuration of the server device 3. In the figure, the server device 3 includes, as main components, a control means 31, a transmission / reception unit 32, a storage unit 33, a distance calculation unit 34, a distance determination unit 35, and a movement determination unit 36.

[0032] The control means 31 is configured to include a CPU, and controls the entire server device 3 based on a program 37 stored in the storage unit 33. The CPU executes calculations in accordance with the program 37, thereby realizing each function of the server device 3. The program 37 includes a terminal separation notification program for causing a distance calculation unit 34 to calculate the inter-terminal distance X between the mobile terminal 1 and the wristwatch type terminal 2, a distance determination unit 35 to determine whether the inter-terminal distance X is equal to or greater than a threshold Y, and a movement determination unit 36 ​​to determine whether the mobile terminal 1 and the wristwatch type terminal 2 are moving.

[0033] The transmitting / receiving unit 32 enables two-way communication with the mobile terminal 1 via the wireless communication means 4. Therefore, the server device 3 can transmit and receive data including various information to and from the mobile terminal 1. The transmitting / receiving unit 32 also enables two-way communication with the wristwatch type terminal 2 via the mobile terminal 1, and can transmit and receive data including various information to and from the wristwatch type terminal 2. In this embodiment, the transmitting / receiving unit 32 corresponds to the transmitting unit of the present invention.

[0034] The storage unit 33 is configured using various storage devices such as a magnetic hard disk drive and a semiconductor storage device, and is capable of writing and reading various information. The storage unit 33 stores and saves the mobile terminal location information received from the mobile terminal 1 and the wristwatch-type terminal location information received from the wristwatch-type terminal 2 together with the time when the location information was detected.

[0035] The distance calculation unit 34 calculates the inter-terminal distance X between the mobile terminal 1 and the wristwatch terminal 2 based on the mobile terminal position information and the wristwatch terminal position information.

[0036] Distance determination unit 35 determines whether inter-terminal distance X calculated by distance calculation unit 34 is equal to or greater than threshold value Y. Threshold value Y can be set to any desired value, but is set to be shorter than connectable distance Z (the distance that radio waves can reach) by short-range wireless communication means 5, as shown in FIG.

[0037] The movement determination unit 36 ​​determines whether the mobile terminal 1 and the wristwatch type terminal 2 are moving. The movement determination unit 36 ​​determines whether the mobile terminal 1 is moving from the most recent several pieces of mobile terminal location information, and determines whether the wristwatch type terminal 2 is moving from the most recent several pieces of wristwatch type terminal location information. If there is no change in the most recent several pieces of mobile terminal location information and wristwatch type terminal location information, it determines that the mobile terminal 1 and the wristwatch type terminal 2 are not moving, and if there is a change, it determines that the mobile terminal 1 and the wristwatch type terminal 2 are moving.

[0038] Here, the terminal separation notification system of this embodiment will be described. When portable terminal 1 receives position information from artificial satellite 6 via GPS receiver 12, it transmits the portable terminal position information to server device 3 via wireless communication means 4. When wristwatch terminal 2 receives position information from artificial satellite 6 via GPS receiver 22, it transmits the wristwatch terminal position information to server device 3 via portable terminal 1 connected via short-range wireless communication means 5.

[0039] The functions of the server device 3 will be described below with reference to Fig. 8. In step S1, the server device 3 receives wristwatch terminal position information and mobile terminal position information. In step S2, the distance calculation unit 34 calculates the inter-terminal distance X between the wristwatch terminal 2 and the mobile terminal 1 based on the wristwatch terminal position information and the mobile terminal position information.

[0040] In step S3, the distance determination unit 35 determines whether the calculated inter-terminal distance X is equal to or greater than the threshold Y. If it is determined that the inter-terminal distance X is equal to or greater than the threshold Y, the process proceeds to step S4, and if it is determined that the inter-terminal distance X is less than the threshold Y, the process proceeds to step S1.

[0041] In step S4, movement determination unit 36 ​​determines whether or not mobile terminal 1 has moved based on the multiple pieces of mobile terminal position information most recently received. If it is determined that mobile terminal 1 has moved, in step S5 a signal (hereinafter referred to as "notification signal") notifying mobile terminal 1 that inter-terminal distance X between mobile terminal 1 and wristwatch type terminal 2 is equal to or greater than threshold Y (terminal separation notification) is transmitted to mobile terminal 1, and the process proceeds to step S6. If it is determined that mobile terminal 1 has not moved, the process proceeds to step S6.

[0042] In step S6, the movement determination unit 36 ​​determines whether the wristwatch type terminal 2 has moved based on the most recently received multiple pieces of wristwatch type terminal position information. If it is determined that the wristwatch type terminal 2 has moved, a notification signal is sent to the wristwatch type terminal 2 in step S7, and the flow ends. If it is determined that the wristwatch type terminal 2 has not moved, the flow ends.

[0043] In this embodiment, since only the wristwatch type terminal 2 is moving, a notification signal is transmitted from the server device 3 to the wristwatch type terminal 2 via the mobile terminal 1. When the transmitting / receiving unit 23 of the wristwatch type terminal 2 receives the notification signal from the server device 3, the notification unit 27 issues a warning by voice or vibration. As shown in FIG. 6, a warning message T such as "Have you left your smartphone behind?" is displayed on the display unit 25. Note that the warning message T shown in FIG. 6 is an example, and the warning may be displayed by other text, figures, symbols, etc. In this embodiment, all of the following notifications are issued: voice by the notification unit 27, vibration, and display by the display unit 25; however, any one or more of these notifications may be used.

[0044] The flow by the server device 3 shown in Figure 8 is repeated at a predetermined interval while the mobile terminal 1 and the server device 3 are connected by wireless communication means 4 and the mobile terminal 1 and the wristwatch-type terminal 2 are connected by short-range wireless communication means 5.

[0045] 7, threshold Y is set to be shorter than the connectable distance Z (range of radio waves) between mobile terminal 1 and wristwatch type terminal 2 via short-range wireless communication means 5, so that mobile terminal 1 and wristwatch type terminal 2 are connected via short-range wireless communication means 5 at the time when a warning is issued by notification unit 17. This makes it possible to send a notification signal from server device 3 to wristwatch type terminal 2 via mobile terminal 1.

[0046] When the user P recognizes the warning issued by the notification unit 17 or the warning displayed on the display unit 15, the user P can realize that he or she has left the mobile terminal 1 behind. Thereafter, the user P operates the operation unit 26 of the wristwatch-type terminal 2, so that the sound output instruction unit 29 can cause the notification unit 27 of the mobile terminal 1 connected via the short-range wireless communication means 5 to emit a sound. This allows the user P to recognize the location where the mobile terminal 1 has been left by sound. Furthermore, the user P can operate the operation unit 26 to cause the location information acquisition unit 30 to acquire mobile terminal location information from the server device 3, and display the location of the mobile terminal 1 together with a map on the display unit 25. Note that a route to the location of the mobile terminal 1 may be displayed on the map. The user P can then return to the location where the mobile terminal 1 was left while looking at the display unit 25, and find the mobile terminal 1.

[0047] In the above embodiment, a case has been described in which user P leaves mobile terminal 1 behind while wearing wristwatch type terminal 2, but if user P leaves mobile terminal 2 behind while carrying it, server device 3 transmits a notification signal to mobile terminal 1, and notification unit 17 of mobile terminal 1 issues a warning by sound or vibration, or displays warning text T (see FIG. 5 ) or the like on display unit 15. Similarly to wristwatch type terminal 2, mobile terminal 1 also has sound instruction unit 19 and location information acquisition unit 20, and can cause wristwatch type terminal 2 to emit a sound or display the location of wristwatch type terminal 2 together with a map on display unit 15.

[0048] In the above embodiment, if user P is wearing wristwatch type terminal 2 and leaves mobile terminal 1 on a train or bus, it is determined that both mobile terminal 1 and wristwatch type terminal 2 are moving, and an alert is issued by the alert units 17 and 27 of both terminals. However, server device 3 may not determine whether mobile terminal 1 and wristwatch type terminal 2 have moved in step S4, and instead, if the inter-terminal distance X is equal to or greater than threshold value Y, an alert is issued by the alert units 17 and 27 of both mobile terminal 1 and wristwatch type terminal 2 regardless of whether mobile terminal 1 and wristwatch type terminal 2 have moved.

[0049] In this embodiment, two terminals, a mobile terminal 1 and a wristwatch-type terminal 2, have been described, but three or more terminals may be connected by short-range wireless communication means 5, and when the inter-terminal distance X between any one terminal and another terminal is equal to or greater than a threshold Y, a notification signal may be transmitted to notify the user.

[0050] As described above, the terminal separation notification system of this embodiment includes a distance calculation unit 34 that calculates the inter-terminal distance X between the mobile terminal 1 and the wristwatch type terminal 2 based on location information of the mobile terminal 1 that can communicate independently with the server device 3 and location information of the wristwatch type terminal 2 that cannot communicate independently with the server device 3 but can communicate with the server device 3 by being connected to the mobile terminal 1 via short-range wireless communication means 5; a distance determination unit 35 that determines whether the inter-terminal distance X is equal to or greater than a threshold Y; and a transmission / reception unit 32 that transmits a notification signal to the mobile terminal 1 and / or the wristwatch type terminal 2, where threshold Y is set shorter than the connectable distance Z by the short-range wireless communication means 5, and the transmission / reception unit 32 transmits the notification signal when the inter-terminal distance X is equal to or greater than threshold Y. Therefore, the mobile terminal 1 and the wristwatch type terminal 2 can receive the notification signal when they are connected via short-range wireless communication means 5 within the connectable distance Z. As a result, a notification can be issued when the mobile terminal 1 and the wristwatch type terminal 2 are connected via short-range wireless communication means 5, making the user P aware that they have left the mobile terminal 1 and the wristwatch type terminal 2 behind.

[0051] Furthermore, the terminal separation notification system of this embodiment has a movement determination unit 36 ​​that determines whether the mobile terminal 1 and the wristwatch type terminal 2 have moved based on the location information of the mobile terminal 1 and the location information of the wristwatch type terminal 2, and the transmitter / receiver 32 transmits a notification signal to the mobile terminal 1 and / or the wristwatch type terminal 2 that the movement determination unit 36 ​​has determined to be moving. Therefore, a notification can be made at the mobile terminal 1 or the wristwatch type terminal 2 that is thought to be carried by the moving user P, making the user P aware that they have left something behind.

[0052] Furthermore, in the terminal separation notification system of this embodiment, the mobile terminal 1 and the wristwatch type terminal 2 have notification units 17 and 27, and upon receiving a notification signal, the mobile terminal 1 and / or the wristwatch type terminal 2 issues a notification via the notification units 17 and 27. This makes it possible to make the user P aware that the mobile terminal 1 or the wristwatch type terminal 2 has been left behind, etc.

[0053] The terminal separation notification program of this embodiment has a distance calculation unit 34 that calculates the inter-terminal distance X between the mobile terminal 1 and the wristwatch type terminal 2 based on location information of the mobile terminal 1 that can communicate independently with the server device 3 and location information of the wristwatch type terminal 2 that cannot communicate independently with the server device 3 but can communicate with the server device 3 by being connected to the mobile terminal 1 via short-range wireless communication means 5, a distance determination unit 35 that determines whether the inter-terminal distance X is equal to or greater than a threshold Y, and a transmission / reception unit 32 that transmits a notification signal to the mobile terminal 1 and / or the wristwatch type terminal 2, where the threshold Y is set shorter than the connectable distance by the short-range wireless communication means 5, and controls the distance calculation unit 34 to calculate the inter-terminal distance X based on the location information of the mobile terminal 1 and the location information of the wristwatch type terminal 2, controls the distance determination unit 35 to determine whether the inter-terminal distance X is equal to or greater than the threshold Y, and controls the transmission / reception unit 32 to transmit a notification signal if the inter-terminal distance X is equal to or greater than the threshold Y. Therefore, the server device 3 can be controlled to notify the mobile terminal 1 and the wristwatch type terminal 2 that the terminal separation notification has been performed.

[0054] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention. For example, the wearable device is not limited to a wristwatch-type terminal, but may be a terminal of other types, such as a glasses-type terminal, a finger-type terminal, a clothing-type terminal, a camera-type terminal, an earphone-type terminal, or a speaker-type terminal. [Explanation of symbols]

[0055] 1. Mobile device (first device) 2. Wristwatch-type device (second device) 3. Server equipment 5 Short-range wireless communication means 17. Information Department 27. Information Department 32 Transmitter / receiver (transmitter) 34 Distance calculation unit 35 Distance determination unit 36 Movement determination section X Terminal Distance Y Threshold Z Connectable distance

Claims

1. a distance calculation unit that calculates a distance between the first terminal and the second terminal based on location information of a first terminal that can communicate with a server device independently and location information of a second terminal that cannot communicate with the server device independently but can communicate with the server device by being connected to the first terminal by a short-range wireless communication means; a distance determination unit that determines whether the inter-terminal distance is equal to or greater than a threshold; a transmission unit that transmits a notification signal to the first terminal and / or the second terminal; the threshold is set to be shorter than a connectable distance by the short-range wireless communication means, A terminal separation notification system, characterized in that the transmitting unit transmits a notification signal when the inter-terminal distance is equal to or greater than the threshold value.

2. a movement determination unit that determines whether or not the first terminal and the second terminal have moved based on location information of the first terminal and location information of the second terminal; 2. The terminal separation notification system according to claim 1, wherein the transmission unit transmits the notification signal to the first terminal and / or the second terminal that the movement determination unit has determined to be moving.

3. The first terminal and the second terminal each have a notification unit, 3. The terminal separation notification system according to claim 1, wherein the first terminal and / or the second terminal that have received the notification signal perform a notification using the notification unit.

4. a distance calculation unit that calculates a distance between the first terminal and the second terminal based on location information of a first terminal that can communicate with a server device independently and location information of a second terminal that cannot communicate with the server device independently but can communicate with the server device by being connected to the first terminal by a short-range wireless communication means; a distance determination unit that determines whether the inter-terminal distance is equal to or greater than a threshold; a transmission unit that transmits a notification signal to the first terminal and / or the second terminal; the threshold is set to be shorter than a connectable distance by the short-range wireless communication means, controlling the distance calculation unit to calculate the inter-terminal distance based on location information of the first terminal and location information of the second terminal; controlling the distance determination unit to determine whether the inter-terminal distance is equal to or greater than the threshold; A terminal separation notification program, comprising: a transmitting unit that controls the transmitting unit so as to transmit the notification signal when the inter-terminal distance is equal to or greater than the threshold value.

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