JP6721190B2 - Communications system - Google Patents

Description

The present invention relates to a slave terminal, a mobile router, a communication system, a method, and a program, and in particular, when the slave terminal communicates with a mobile router, it is possible to prevent the user from leaving the slave terminal. The present invention relates to a slave terminal, mobile router, communication system, method and program.

A communication system in which a slave terminal and a mobile router communicate with each other is known. The mobile router performs settings such as setting the slave terminal to a dormant state and switching the frequency band used by the slave terminal. On the other hand, the wireless slave device accesses the Web setting page and makes detailed settings other than those. A communication system having a slave terminal and a mobile router may be used at a destination to which a user has moved. In many cases, a user who uses this communication system does not operate the mobile router at the destination except for the power operation at the start of use. For this reason, the user may forget to leave the mobile router at the destination. In addition, the user's too much effort to misplace the mobile router neglects the recognition of the wireless slave device, which causes the wireless slave device to be misplaced.

Patent Document 1 discloses a device configured to enable a send/clear request for adaptively sending a protocol. One embodiment of US Pat. No. 6,096,898 includes one or more rules that include one or more of multiple communication link characteristics between an access point and one or more devices of multiple devices. It is disclosed that identifying may be provided. In one embodiment of US Pat. No. 6,096,086, one or more of an access point and a plurality of devices are based on whether each link characteristic of one or more rules satisfies a link characteristic threshold in each rule. It is disclosed that the method further comprises selectively enabling send/clear requests for sending protocols to and from a plurality of devices. In a particular embodiment of US Pat. No. 6,096,698, a station or access point identifies a rule and sends this rule to other devices, and one or more conditions under which a send/send clear request will be used. It is disclosed that it defines. The content disclosed in Patent Document 1 is mainly intended to improve communication efficiency by using different communication link characteristics and changing data transmission/reception rules. However, Patent Document 1 does not disclose preventing misplacement of the slave terminal.

In Patent Document 2, when the separation determination unit determines that the distance between the information processing device and the electronic device is a predetermined distance or more based on the reception state of the wireless signal, the stationary state detection unit determines that the electronic device is the stationary state. There is disclosed a loss notification system in which the notification unit gives an alarm indicating that the electronic device is left behind when it detects that the electronic device is stationary. Patent Document 2 discloses that the distance between an information processing device and an electronic device is calculated using radio wave intensity. Patent Document 2 discloses that when a wireless signal is not received for a certain time or more, it is determined that the distance between the information processing device and the electronic device is a predetermined distance or more. However, in Patent Document 2, a communication interface that transmits and receives data in determining whether or not the distance between the information processing device and the electronic device is a predetermined distance or more (whether or not the communication connection is disconnected) is described. Judgment using another communication interface is not disclosed.

JP, 2016-536903, A JP, 2005-138983, A

As described above, there is a problem that the user forgets to leave the wireless slave device when the slave terminal communicates with the mobile router.

An object of the present disclosure is to provide a slave terminal, a mobile router, a communication system, a method, and a program that solve any of the problems described above.

The slave terminal according to the present disclosure is
A handset communication unit that communicates with the mobile router on at least one of the first wireless communication interface and the second wireless communication interface;
A cordless handset switching unit that switches to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
A slave unit notification unit that notifies the user who uses the own terminal of the user when both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected.
Equipped with.

The mobile router according to the present disclosure is
A router communication unit that communicates with the child device terminal on at least one of the first wireless communication interface and the second wireless communication interface;
A router switching unit that switches to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
When both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected, an alarm is notified to the slave terminal in order to cause the slave terminal to perform a user notification. Router notification part,
Equipped with.

The communication system according to the present disclosure includes
A slave terminal, and a mobile router that communicates with the slave terminal,
The slave terminal is
A cordless handset communication unit that communicates with the mobile router on at least one of a first wireless communication interface and a second wireless communication interface;
A cordless handset switching unit that switches to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
And a slave unit notification unit that notifies the user who uses the own terminal of the user when both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected. Then
The mobile router is
A router communication unit that communicates with the slave terminal by at least one of the first wireless communication interface and the second wireless communication interface;
A router switching unit that switches to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
When both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected, an alarm is notified to the slave terminal in order to cause the slave terminal to perform the user notification. And a router notifying section that performs

The communication system according to the present disclosure includes
A slave terminal, a mobile router that communicates with the slave terminal using a first wireless communication interface, and an accessory that is connected to the slave terminal and that communicates with the mobile router using a second wireless communication interface.
The slave terminal is
A handset communication unit that communicates with the mobile router;
A slave unit notification unit that performs a user notification to a user who uses the slave device terminal when both of the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected. Have
The accessory is
When the mobile terminal and the second wireless communication interface are reconnected after the mobile terminal has made the user notification, the slave terminal is made to make another user notification in order to cause the slave terminal to make another user notification. It has an accessory communication unit that notifies the machine terminal of getting up,
The mobile router is
When the reconnection is performed after the slave terminal has performed the user notification, a wakeup notification is sent to the slave terminal via the accessory in order to cause the slave terminal to perform another user notification. It has a router communication unit that does
The slave terminal notifies the user of the other user.

The method according to the present disclosure is
Communicating with a mobile router on at least one of a first wireless communication interface and a second wireless communication interface;
Switching to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
When both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected, performing a user notification to a user who uses the slave terminal,
Equipped with.

The program according to the present disclosure is
Communicating with a mobile router on at least one of a first wireless communication interface and a second wireless communication interface;
Switching to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
When both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected, performing a user notification to a user who uses the slave terminal,
Causes the computer to execute.

According to the present invention, it is possible to provide a slave terminal, a mobile router, a communication system, a method, and a program capable of preventing a user from leaving the slave terminal when the slave terminal communicates with the mobile router. it can.

FIG. 3 is a block diagram illustrating a communication system according to the first embodiment. FIG. 3 is a schematic diagram illustrating a communication system according to the first embodiment. 6 is a flowchart illustrating the operation of the communication system according to the first embodiment. FIG. 6 is a block diagram illustrating a communication system according to a second embodiment. 7 is a flowchart illustrating the operation of the communication system according to the second embodiment. 9 is a flowchart illustrating an operation of acquiring position information of a slave terminal according to the second embodiment. FIG. 9 is a block diagram illustrating a communication system according to a third embodiment. 9 is a flowchart illustrating the operation of the communication system according to the third embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, the same or corresponding elements are designated by the same reference numerals, and repeated explanations are omitted as necessary for the sake of clarity.

[Embodiment 1]
The configuration of the communication system according to the first embodiment will be described.

FIG. 1 is a block diagram illustrating a communication system according to the first embodiment.
FIG. 2 is a schematic diagram illustrating the communication system according to the first embodiment.

As shown in FIGS. 1 and 2, the communication system 10 includes a slave terminal 11 and a mobile router 12 that communicates with the slave terminal 11.

The slave terminal 11 includes a communication unit 111, a switching unit 112, and a notification unit 113. The communication unit 111 may be referred to as a child device communication unit, the switching unit 112 may be referred to as a child device switching unit, and the notification unit 113 may be referred to as a child device notification unit. The slave terminal 11 has a general slave function, but the description thereof is omitted here.

The communication unit 111 communicates with the mobile router 12 on at least one of the first wireless communication interface IF1 and the second wireless communication interface IF2. The first wireless communication interface IF1 is a wireless communication interface using, for example, IEEE802.11n or IEEE802.11ac. The second wireless communication interface IF2 is, for example, a wireless communication interface using IEEE802.11ah.

When the connection for communication of the first wireless communication interface IF1 is disconnected, the switching unit 112 switches to communication of the second wireless communication interface IF2.

When both the communication connection of the first wireless communication interface IF1 and the communication connection of the second wireless communication interface IF2 are disconnected, the notification unit 113 issues a user notification Nt1 to the user who uses the slave terminal 11. .. The notification unit 113 performs user notification Nt1 by performing at least one of message display on the display of the slave terminal 11, vibration by a vibrator, ringing by a buzzer, and lighting of a lamp, and the user is cautioned. Evoke.

Further, the slave terminal 11 may further include a monitoring unit (not shown) that monitors the communication connection state of the first wireless communication interface IF1 and the communication connection state of the second wireless communication interface IF2. The monitoring unit included in the child device terminal 11 may be referred to as a child device monitoring unit.

The mobile router 12 has a communication unit 121, a switching unit 122, and a notification unit 123. The communication unit 121 may be referred to as a router communication unit, the switching unit 122 may be referred to as a router switching unit, and the notification unit 123 may be referred to as a router notification unit. The mobile router 12 has a general wireless router function, but its description is omitted here.

The communication unit 121 communicates with the slave terminal 11 by at least one of the first wireless communication interface IF1 and the second wireless communication interface IF2.

The switching unit 122 switches to the communication of the second wireless communication interface IF2 when the connection of the communication of the first wireless communication interface IF1 is disconnected.

The notification unit 123 causes the slave terminal 11 to perform the user notification Nt1 when both the communication connection of the first wireless communication interface IF1 and the communication connection of the second wireless communication interface IF2 are disconnected. Notify 11 of the alarm.

The slave terminal 11 notified of the alarm from the mobile router 12 performs at least one of message display on the display of the slave terminal 11, vibration by a vibrator, ringing by a buzzer, and lighting of a lamp. As a result, the user notification Nt1 is issued and the user is alerted.

The mobile router 12 may further include a monitoring unit (not shown) that monitors the communication connection state of the first wireless communication interface IF1 and the communication connection state of the second wireless communication interface IF2. The monitoring unit included in the mobile router 12 may be referred to as a router monitoring unit.

The power consumption of the first wireless communication interface IF1 is larger than that of the second wireless communication interface IF2. Therefore, each of the handset terminal 11 and the mobile router 12 can reduce the power consumption of the handset terminal 11 by switching from the first wireless communication interface IF1 to the second wireless communication interface IF2.

Further, each of the slave terminal 11 and the mobile router 12 has a function of switching between the first wireless communication interface IF1 and the second wireless communication interface IF2. The handset terminal 11 may make a switching request to switch between the first wireless communication interface IF1 and the second wireless communication interface IF2, or the mobile router 12 may make a switching request to switch.

The frequency of the first wireless communication interface IF1 is different from the frequency of the second wireless communication interface IF2.
The operation of the communication system according to the first embodiment will be described.
In the description of the first embodiment, it is assumed that the mobile router 12 has a general wireless router function and also has a function as an access point connected by Wi-Fi. In the description of the first embodiment, the first wireless communication interface IF1 is Wi-Fi, and the second wireless communication interface IF2 is IEEE802.11ah.

FIG. 3 is a flowchart illustrating the operation of the communication system according to the first embodiment.

As shown in FIG. 3, the slave terminal 11 connects to the mobile router 12 by Wi-Fi communication. When the slave terminal 11 finishes communication with the mobile router 12, the misplacement prevention function is started with the termination (disconnection) of communication as a trigger.

The cordless handset terminal 11 detects disconnection of the Wi-Fi communication (step S101).

The slave terminal 11 requests the mobile router 12 to reconnect using IEEE802.11ah. The mobile router 12 makes a connection using the IEEE802.11ah to the slave terminal 11 (step S102).

The maximum communicable distance of IEEE802.11ah is longer than the communicable maximum distance of Wi-Fi communication such as IEEE802.11n and IEEE802.11ac. For this reason, when Wi-Fi communication is performed until immediately before disconnection, connection by IEEE802.11ah is possible after that.

When the connection using IEEE802.11ah is not successful (step S103: No), it is determined that a failure has occurred between the mobile router 12 and the slave terminal 11. Since communication cannot be performed even using the IEEE802.11ah capable of communicating relatively far, it is determined that the user has left the slave terminal 11 somewhere. The user is notified Nt1 that the user has left the slave terminal 11 behind (step S104).

If the handset terminal 11 is not connected by the IEEE802.11ah within a predetermined time, even if the user leaves the handset terminal 11 somewhere and the battery runs out, it is determined that the connection is not made. Good. Then, the slave terminal 11 may perform the user notification Nt1 by using the fact that the connection by the IEEE802.11ah is not made within a predetermined time as a trigger.

When the connection using the IEEE802.11ah is successful (step S103: Yes), the Wi-Fi communication in the normal operation ends, and it is determined that the slave terminal 11 exists near the mobile router 12. As a result, it is determined that the misplacement of the slave terminal 11 has not occurred, and the communication status of communication using IEEE802.11ah is monitored (step S105).

When the communication using the IEEE 802.11ah is disconnected (step S106: Yes), it is determined that a failure has occurred between the mobile router 12 and the slave terminal 11. Then, the user is notified Nt1 that the user has left the slave terminal 11 behind (step S107). The cordless handset terminal 11 issues a user notification Nt1 to the user triggered by the disconnection of communication according to IEEE 802.11ah.

When connection of Wi-Fi communication in normal operation is made during monitoring of communication using IEEE802.11ah (step S108: Yes), communication using IEEE802.11ah is disconnected (step S109). Wi-Fi communication is communication using IEEE 802.11n, IEEE 802.11ac, or the like.

Then, the misplacement prevention function is stopped and the state returns to the communication monitoring state (step S110).

In the description of the operation of the communication system 10 according to the first embodiment, the operation of steps S101 to S110 has been described as the operation of the slave terminal 11, but the operation is not limited to this. The mobile router 12 may perform the operations of steps S101 to S110 instead of the slave terminal 11. In this case, the operation of performing the user notification Nt1 in steps S104 and S107 is that the mobile router 12 notifies the slave terminal 11 of an alarm, and the slave terminal 11 notified of the alarm vibrates due to a vibrator. User notification Nt1 is performed.

In the communication system 10 according to the first embodiment, the handset terminal 11 notifies the user of the user notification Nt1 to the user when the handset terminal 11 uses the disconnection of the communication using the IEEE802.11ah (the second wireless communication interface IF2) as a trigger. I do. At this time, the mobile router 12 may detect the disconnection, the mobile router 12 may notify the slave terminal 11 of the alarm, and the slave terminal 11 may perform the user notification Nt1 to the user. Further, the user notification Nt1 may be issued to the user from both the slave terminal 11 and the mobile router 12.

In the communication system 10, since at least one of the slave terminal 11 and the mobile router 12 detects a communication disconnection, and the slave terminal 11 sends a user notification Nt1 to the user, the user forgets to leave the slave terminal 11. It becomes easier to recognize. Further, even when one of the slave terminal 11 and the mobile router 12 cannot detect the disconnection of the communication, the other detects the disconnection and the slave terminal 11 performs the user notification Nt1. It becomes easier to recognize misplaced items.

As a result, when the slave terminal communicates with the mobile router, it is possible to provide a slave terminal, a mobile router, a communication system, a method, and a program that can prevent the slave terminal from being left behind by the user.

Further, when a smartphone compatible with IEEE802.11ah is used as the slave terminal 11, the communication unit 111 and the notification unit 113 can use the functions of the smartphone. The switching unit 112 and the monitoring unit can use the application of the smartphone. By doing so, the slave terminal 11 can realize the misplacement prevention function at low cost without adding a hardware device or the like. The same applies when a tablet having a Wi-Fi communication function is used as the slave terminal 11.

In addition, IEEE802.11ah is an authentication connection in AES (Advanced Encryption Standard) using WPA (Wi-Fi Protected Access) 2 like Wi-Fi communication in normal operation such as IEEE 802.11n and IEEE 802.1ac. it can. For this reason, in the communication system 10 according to the first embodiment, for example, it is not necessary to perform pairing, which is necessary when using Bluetooth (registered trademark). Further, in the communication system 10, since the SSID (Service Set IDentifier) and the password used in the Wi-Fi communication in the normal operation can be used as they are, it is not necessary to separately perform communication setting for IEEE802.11ah. .. As described above, in the communication system 10, the communication setting when the misplaced function is applied can be facilitated.

In addition, a smartphone position search service using an LTE (Long Term Evolution) line connection is known. The smartphone location search service using the LTE line connection needs to be always connected to the LTE line, and thus the power consumption of the slave terminal is large. On the other hand, the slave terminal 11 according to the first embodiment switches to low power consumption IEEE802.11ah communication when the connection of high power consumption IEEE802.11n and IEEE802.11ac is disconnected. Thereby, the handset terminal 11 can reduce power consumption as compared with the location search service of the smartphone using the LTE line connection.

An accessory for preventing misplacement by Bluetooth (registered trademark) connection is also known. The accessory for preventing misplacement by Bluetooth (registered trademark) connection has a frequency band used close to the frequency band used by Wi-Fi communication, and thus is susceptible to radio wave interference from a congested Wi-Fi communication environment. On the other hand, the slave terminal 11 according to the first embodiment uses IEEE802.11ah. The frequency band used by IEEE 802.11ah is the sub-GHz band. The sub-GHz band is not close to the frequency band used by Wi-Fi communication. As a result, the frequency band used by IEEE802.11ah is different from the frequency band used by Wi-Fi communication, so that the handset terminal 11 can be made less susceptible to radio wave interference from the Wi-Fi communication environment.

[Second Embodiment]
The configuration of the communication system according to the second embodiment will be described.
FIG. 4 is a block diagram illustrating a communication system according to the second embodiment.

The communication system 20 according to the second embodiment is different from the communication system 10 according to the first embodiment in that it includes an accessory. In addition, the handset device does not have a switching unit and a notification unit, but has a GPS (Global Positioning System). Further, the accessory is different in that the accessory has a switching unit deleted from the slave terminal and a notification unit.

As illustrated in FIG. 4, the communication system 20 includes a slave terminal 21, a mobile router 22 that communicates with the slave terminal 21, and an accessory 23 connected to the slave terminal 21.

The slave terminal 21 includes a communication unit 211 and a GPS 214. The communication unit 211 of the slave terminal 21 does not have the IEEE 802.11ah communication function that the slave terminal 11 according to the first embodiment has. The communication unit 211 has a general wireless communication function and a slave device function. The GPS 214 acquires position information that specifies the current position of the slave terminal 21.

The configuration of the mobile router 22 according to the second embodiment is the same as that of the mobile router 12 according to the first embodiment, and thus the description thereof will be omitted.

The accessory 23 has a communication unit 231, a switching unit 232, and a notification unit 233. The accessory 23 is connected (provided) to the slave terminal 21, and performs communication using the mobile router 22 and IEEE802.11ah instead of the slave terminal 21.

The communication unit 231 communicates with the mobile router 22 instead of the slave terminal 21 by IEEE802.11ah. Since the communication unit 231 uses the GPS 214 of the slave terminal 21, it performs Wi-Fi communication with the slave terminal 21.

When the connection for Wi-Fi communication is disconnected, the switching unit 232 switches to IEEE802.11ah communication.

The notification unit 233 issues a user notification Nt1 to the user who uses the slave terminal 21. When the communication unit 231 can communicate with the slave terminal 21, the notification unit 233 notifies the slave terminal 21 of an alarm using SMS (Short Message Service), and the slave terminal 21 notified of the alarm is a user. A user notification Nt1 may be issued to the user. This alarm is issued when both the Wi-Fi communication connection and the IEEE 802.11ah communication connection are disconnected.

The operation of the communication system according to the second embodiment will be described.
FIG. 5 is a flowchart illustrating the operation of the communication system according to the second embodiment.

As shown in FIG. 5, the user activates the misplacement prevention function in advance (step S201). As a result, the mobile router 22 and the accessory 23 are connected using the IEEE802.11ah (step S202). In the connection and authentication using IEEE802.11ah, the SSID and password used in the Wi-Fi communication connection between the mobile router 22 and the slave terminal 21 are used.

When the connection using the IEEE802.11ah is not successful (step S203: No), it is determined that the misplacement prevention function has failed to be activated, and the user notification Nt1 is given to the user (step S204).

When the connection using the IEEE802.11ah is successful (step S203: Yes), it is determined that the mobile router 22 and the slave terminal 21 provided with the accessory 23 are present near the mobile router 22. As a result, the user determines that the slave terminal 21 has not been left behind, and monitors the connection state of communication using IEEE802.11ah (step S205).

If the communication using IEEE802.11ah is disconnected after the connection using IEEE802.11ah is successful (step S206: Yes), it is determined that some failure has occurred in the connection between the mobile router 22 and the accessory 23. As a result, the user notification Nt1 is given to the user as the misplacement of the slave terminal 21 has occurred (step S207). The mobile router 22 and the accessory 23 each notify the slave terminal 21 of an alarm triggered by the disconnection of communication using IEEE 802.11ah, and the slave terminal 21 issues a user notification Nt1 to the user.

The accessory 23 according to the second embodiment uses IEEE802.11ah similarly to the slave terminal 11 according to the first embodiment. Therefore, the accessory 23 according to the second embodiment can also be made less susceptible to radio wave interference from the Wi-Fi communication environment. As a result, interference is less likely to occur even when the frequency band used for Wi-Fi communication is congested, and therefore failure to detect disconnection of Wi-Fi communication (including failure to detect misplacement accompanying it) is reduced. can do. Further, it is possible to reduce false alarm notifications caused by the mobile router 22 and the accessory 23.

Further, even if the frequency band used in Wi-Fi (IEEE802.11n, IEEE802.11ac) communication is congested, the frequency band used in IEEE802.11ah may not be congested. In such a case, since the frequency is assigned to the accessory 23 that uses IEEE802.11ah, it is possible to reduce the failure to detect the disconnection of the IEEE802.11ah communication. In addition, since false detection of disconnection of IEEE 802.11ah communication can be reduced, misplacement of the slave terminal 21 can be appropriately prevented.

Returning to step S206 shown in FIG. 5, when communication using IEEE802.11ah is not disconnected (step S206: No), the connection using Wi-Fi communication between the mobile router 22 and the slave terminal 21 is disconnected. It is confirmed (step S208). When the connection using Wi-Fi communication is not disconnected (step S208: No), the process returns to step S206.

When the connection using the Wi-Fi communication between the mobile router 22 and the slave terminal 21 is disconnected (step S208: Yes), the position information of the slave terminal 21 is acquired (step S209). That is, the current position information of the slave terminal 21 is acquired using the disconnection of the Wi-Fi communication between the mobile router 22 and the slave terminal 21 (step S208: Yes) as a trigger (step S209).

Here, details of acquisition of the position information of the slave terminal 21 will be described.
FIG. 6 is a flowchart illustrating an operation of acquiring position information of a slave terminal according to the second embodiment.

As shown in FIG. 6, the mobile router 22 performs trigger communication as a trigger to the accessory 23 and connects with the accessory 23 (step S2091).

The accessory 23 receives the trigger communication and connects to the slave terminal 21 using Wi-Fi communication (step S2092).

The slave terminal 21 connected to the accessory 23 using Wi-Fi communication activates the GPS 214 (step S2093).

The cordless handset terminal 21 acquires the current position information of the cordless handset terminal 21 using the GPS 214 (step S2094).

After acquiring the position information, the slave terminal 21 stops the GPS 214 (step S2095).

The cordless handset terminal 21 notifies the accessory 23 of the position information of the cordless handset terminal 21 (step S2096).

The accessory 23 notifies the mobile router 22 of the location information of the slave terminal 21 (step S2097).

Returning to step S209 shown in FIG. 5, after acquiring the current position information of the slave terminal 21, it is confirmed whether communication using the IEEE802.11ah is disconnected (step S210).

When the communication between the mobile router 22 and the accessory 23 using IEEE802.11ah is disconnected (step S210: Yes), the user notification Nt1 is used as the candidate location of the misplacement location of the slave terminal 21 as the location information of the slave terminal 21. Perform (step S211).

To acquire the position information of the slave terminal 21, the GPS 214 is only temporarily activated when the communication with the slave terminal 21 is disconnected. Thereby, the method of acquiring the position information of the slave terminal 21 according to the second embodiment reduces the power consumption of the slave terminal as compared with the method of always activating GPS to acquire the position information of the slave terminal. can do.

In the communication system 20 according to the second embodiment, the accessory 23, instead of the slave terminal 21, performs communication using IEEE 802.11ah. Accordingly, also in the second embodiment, when the slave terminal communicates with the mobile router, a slave terminal, a mobile router, a communication system, a method, and a program capable of preventing the user from forgetting to leave the slave terminal are provided. Can be provided.

Further, in the communication system 20, the GPS 214 is used to acquire the position information of the slave terminal 21. As a result, the acquired position information can be provided to the user as a candidate place for the misplaced terminal 21.

In addition, in the communication system 20, when the communication with the slave terminal 21 is disconnected, the GPS 214 is temporarily activated to acquire the position information, so that the power consumption of the slave terminal 21 can be reduced.

[Third Embodiment]
The configuration of the communication system according to the third embodiment will be described.
FIG. 7 is a block diagram illustrating a communication system according to the third embodiment.

As shown in FIG. 7, the communication system 30 according to the third embodiment includes a slave terminal 31, a mobile router 32, and an accessory 33. The accessory 33 is connected to the slave terminal 31. The accessory 33 communicates with the mobile router 32 via the second wireless communication interface IF2.

The slave terminal 31 includes a communication unit 311 and a notification unit 313. The communication unit 311 communicates with the mobile router 32 using the first wireless communication interface IF1. The first wireless communication interface IF1 is, for example, Wi-Fi communication such as IEEE802.11n or IEEE802.11ac. The second wireless communication interface IF2 is, for example, IEEE 802.11ah communication. The communication unit 311 may be referred to as a slave unit communication unit, and the notification unit 313 may be referred to as a slave unit notification unit.

When both the Wi-Fi communication connection and the IEEE 802.11ah communication connection are disconnected, the notification unit 313 issues a user notification Nt1 to the user who uses the slave terminal 31. The cordless handset terminal 31 also has a general wireless cordless handset function.

The mobile router 32 has a communication unit 321. The communication unit 321 causes the slave terminal 31 to perform another user notification Nt2 when reconnection is performed using the IEEE802.11ah communication after the slave terminal 31 performs the user notification Nt1. A wake-up notification is issued to the child device terminal 31 via the. The mobile router 32 also has a general wireless router function. The notification of the wake-up notification from the mobile router 32 to the accessory 33 is performed using the IEEE802.11ah communication.

The accessory 33 has a communication unit 331. The communication unit 331 causes the slave terminal 31 to perform another user notification Nt2 when the mobile router 32 is reconnected to the IEEE 802.11ah communication after the slave terminal 31 performs the user notification Nt1. A wake-up notification is given to the slave terminal 31. The communication unit 331 of the accessory 33 is connected to the slave terminal 31 and performs communication using IEEE802.11ah instead of the slave terminal 31. The communication unit 331 may also be referred to as an accessory communication unit.

The slave terminal 31 acquires the wake-up notification from each of the mobile router 32 and the accessory 33, and issues another user notification Nt2 to the user.

The operation of the communication system according to the third embodiment will be described.
FIG. 8 is a flowchart illustrating the operation of the communication system according to the third embodiment.

In the third embodiment, the communication unit 331 of the accessory 33 will be described as performing communication using IEEE802.11ah.

The communication system according to the third embodiment is used for searching for the slave terminal 31 when the slave terminal 31 is left behind. It is assumed that the accessory 33 is disconnected from the mobile router 32 for communication using IEEE802.11ah.

As shown in FIG. 8, position information of the slave terminal 31 is acquired (step S301 (step S209)).

In order to notify that the position information of the slave terminal 31 has been acquired, the accessory 33 is notified of the position information acquisition trigger (step S302).

The position information of the slave terminal 31 is acquired by using, for example, the method described in the second embodiment. The acquired location information is provided to the user as a candidate location of the misplaced terminal 21 for the slave terminal 21, so that the user can carry the mobile router 32 and approach the vicinity of the location where the slave terminal 31 exists.

In the communication using IEEE802.11ah, radio waves reach a relatively wide range. When the mobile router 32 approaches the position where the slave terminal 31 exists, the mobile router 32 and the accessory 33 connected to the slave terminal 31 reconnect using the IEEE802.11ah communication (step S303). ).

The mobile router 32 triggers the reconnection of communication using IEEE802.11ah to perform the wakeup trigger communication as the wakeup trigger of the slave terminal 31. The wakeup trigger communication is notified to the slave terminal 31 via the accessory 33. The accessory 33 receives the wake-up trigger communication, connects to the slave terminal 31 by Wi-Fi communication, and activates the user notification function of the slave terminal 31 (step S304).

The slave terminal 31 acquires the wake-up trigger communication from the accessory 33. The slave terminal 31 uses the user notification function of the notification unit 313 to notify the position of the slave terminal 31 by emitting light, sounding an alarm, or the like. Notifying the position of the slave terminal 31 by emitting light or sounding an alarm is referred to as another user notification Nt2.

The user (searcher) recognizes the light emission, the alarm ringing, etc., and discovers the slave terminal 31 (step S305).

When the handset terminal 31 has functions such as GPS and LTE, these functions may be enabled and further detailed position information may be notified using the LTE network.

In searching for the slave terminal 31 according to the third embodiment, the IEEE802.11ah communication in which the radio wave reaches a wider range than the Wi-Fi communication is used. That is, the IEEE 802.11ah communication, which has a longer maximum communicable distance than the Wi-Fi communication, is used. As a result, the search for the slave terminal 31 can search a wider range than the search by reconnection of normal Wi-Fi communication.

In addition, since the search for the slave terminal 31 according to the third embodiment is performed by using IEEE802.11ah during standby, power consumption is low. That is, the search for the slave terminal 31 enables the user notification function only when the searcher approaches the slave terminal 31, so that the search for the slave terminal 31 is more effective than the search method in which GPS and LTE are always enabled. Searching is rarely difficult due to battery exhaustion.

Although the present invention has been described as a hardware configuration in the above embodiment, the present invention is not limited to this. The present invention can also be realized by causing a CPU (Central Processing Unit) to execute a computer program for processing of each component.

In the above embodiments, the program can be stored using various types of non-transitory computer readable media and can be supplied to the computer. Non-transitory computer readable media include various types of tangible storage media. Examples of the non-transitory computer readable medium include a magnetic recording medium (for example, flexible disk, magnetic tape, hard disk drive), magneto-optical recording medium (for example, magneto-optical disk), CD-ROM (Read Only Memory), CD-R, It includes a CD-R/W, a semiconductor memory (for example, a mask ROM, a PROM (Programmable ROM), an EPROM (Erasable PROM)), a flash ROM, and a RAM (Random Access Memory). In addition, the program may be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer-readable media include electrical signals, optical signals, and electromagnetic waves. The transitory computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

The whole or part of the exemplary embodiments disclosed above can be described as, but not limited to, the following supplementary notes.

(Appendix 1)
A handset communication unit that communicates with the mobile router on at least one of the first wireless communication interface and the second wireless communication interface;
A cordless handset switching unit that switches to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
A slave unit notifying unit which notifies the user who uses the self-terminal when the connection of the communication of the first wireless communication interface and the connection of the communication of the second wireless communication interface are both disconnected;
Handset terminal equipped with
(Appendix 2)
A maximum communicable distance of the second wireless communication interface is longer than a maximum communicable distance of the first wireless communication interface,
The cordless handset terminal according to attachment 1.
(Appendix 3)
A slave unit monitoring unit that monitors a communication connection state of the first wireless communication interface and a communication connection state of the second wireless communication interface.
The cordless handset terminal according to appendix 1 or 2.
(Appendix 4)
It further has a GPS that acquires the location information of its own terminal,
The location information is included in the user notification as a candidate location of a misplaced location of the terminal itself,
The slave terminal according to any one of appendices 1 to 3.
(Appendix 5)
The first wireless communication interface is a wireless communication interface using IEEE802.11n or IEEE802.11ac,
The second wireless communication interface is a wireless communication interface using IEEE802.11ah,
The slave unit terminal according to any one of appendices 1 to 4.
(Appendix 6)
Power consumption of the first wireless communication interface is greater than power consumption of the second wireless communication interface,
6. The slave terminal according to any one of appendices 1 to 5.
(Appendix 7)
The frequency of the first wireless communication interface is different from the frequency of the second wireless communication interface,
7. The slave terminal according to any one of appendices 1 to 6.
(Appendix 8)
The slave unit notification unit notifies the user by performing at least one of displaying a message on a display of its own terminal, vibrating by a vibrator, ringing a buzzer, and lighting a lamp,
The slave terminal according to any one of appendices 1 to 7.
(Appendix 9)
A router communication unit that communicates with the child device terminal on at least one of the first wireless communication interface and the second wireless communication interface;
A router switching unit that switches to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
When both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected, an alarm is notified to the slave terminal in order to cause the slave terminal to perform a user notification. Router notification part,
Mobile router with.
(Appendix 10)
A maximum communicable distance of the second wireless communication interface is longer than a maximum communicable distance of the first wireless communication interface,
The mobile router according to attachment 9.
(Appendix 11)
A slave terminal, and a mobile router that communicates with the slave terminal,
The slave terminal is
A cordless handset communication unit that communicates with the mobile router on at least one of a first wireless communication interface and a second wireless communication interface;
A cordless handset switching unit that switches to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
And a slave unit notification unit that notifies the user who uses the own terminal of the user when both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected. Then
The mobile router is
A router communication unit that communicates with the slave terminal by at least one of the first wireless communication interface and the second wireless communication interface;
A router switching unit that switches to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
When both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected, an alarm is notified to the slave terminal in order to cause the slave terminal to perform the user notification. A router notification unit for
Communications system.
(Appendix 12)
A maximum communicable distance of the second wireless communication interface is longer than a maximum communicable distance of the first wireless communication interface,
The communication system according to attachment 11.
(Appendix 13)
A slave terminal; a mobile router that communicates with the slave terminal using a first wireless communication interface; and an accessory that is connected to the slave terminal and that communicates with the mobile router using a second wireless communication interface.
The slave terminal is
A handset communication unit that communicates with the mobile router;
When both the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected, a slave unit notification unit that performs a user notification to a user who uses the slave device terminal, Have
The accessory is
When the mobile terminal and the second wireless communication interface are reconnected after the user terminal notifies the user, the child terminal causes the child terminal to perform another user notification. It has an accessory communication unit that notifies the machine terminal of getting up,
The mobile router is
When the reconnection is performed after the slave terminal has performed the user notification, a wakeup notification is sent to the slave terminal via the accessory in order to cause the slave terminal to perform the other user notification. It has a router communication unit that does
The slave terminal notifies the user of the other user,
Communications system.
(Appendix 14)
A maximum communicable distance of the second wireless communication interface is longer than a maximum communicable distance of the first wireless communication interface,
The communication system according to attachment 13.
(Appendix 15)
Communicating with a mobile router on at least one of a first wireless communication interface and a second wireless communication interface;
Switching to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
If both the connection for communication of the first wireless communication interface and the connection for communication of the second wireless communication interface are disconnected, a user notification to a user who uses the slave terminal,
A method comprising.
(Appendix 16)
Communicating with a mobile router on at least one of a first wireless communication interface and a second wireless communication interface;
Switching to communication of the second wireless communication interface when communication of the first wireless communication interface is disconnected;
If both the connection for communication of the first wireless communication interface and the connection for communication of the second wireless communication interface are disconnected, a user notification to a user who uses the slave terminal,
A program that causes a computer to execute.

The present invention is not limited to the above-mentioned embodiment, and can be modified as appropriate without departing from the spirit of the present invention.

10, 20, 30... Communication system 11, 21, 31... Handset terminal 111, 211, 311... Communication unit 112... Switching unit 113, 313... Notification unit 214... GPS
Mobile router 121, 221, 321, communication unit 122, 222... switching unit 123, 223... notification unit 23, 33... accessory 231, 331... communication unit 232... switching unit 233... notification unit IF1... 1 wireless communication interface IF2... second wireless communication interface Nt1... user notification Nt2... another user notification

Claims (5)

A slave terminal, a mobile router that communicates with the slave terminal using a first wireless communication interface, and an accessory that is connected to the slave terminal and that communicates with the mobile router using a second wireless communication interface.
The slave terminal is
A handset communication unit that communicates with the mobile router ;
A slave unit notification unit that performs a user notification to a user who uses the slave device terminal when both of the communication connection of the first wireless communication interface and the communication connection of the second wireless communication interface are disconnected. Have
The accessory is
When the mobile terminal and the second wireless communication interface are reconnected after the mobile terminal has made the user notification, the slave terminal is made to make another user notification in order to cause the slave terminal to make another user notification. It has an accessory communication unit that notifies the machine terminal of getting up,
The mobile router is
When the reconnection is performed after the slave terminal has performed the user notification, a wakeup notification is sent to the slave terminal via the accessory in order to cause the slave terminal to perform the other user notification. Has a router communication unit that does
The slave device terminal notifies the user of the different user,
Communications system. A maximum communicable distance of the second wireless communication interface is longer than a maximum communicable distance of the first wireless communication interface,
The communication system according to claim 1 . A slave unit monitoring unit that monitors a communication connection state of the first wireless communication interface and a communication connection state of the second wireless communication interface.
The communication system according to claim 1 . It further has a GPS for acquiring the position information of the slave terminal,
The location information is included in the user notification as a candidate location of a misplaced location of the slave terminal,
The communication system according to any one of claims 1 to 3 . The first wireless communication interface is a wireless communication interface using IEEE802.11n or IEEE802.11ac,
The second wireless communication interface is a wireless communication interface using IEEE 802.11ah,
The communication system according to any one of claims 1 to 4 .

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