JP5885655B2 - Terminal, control method thereof, and control program thereof - Google Patents

Description

  The present invention relates to a terminal having a rescue signal transmission function, a control method thereof, and a control program thereof.

  In recent years, services that detect or predict the occurrence of disasters and distribute disaster information via public telephone lines, the Internet network, and the like have been used. As such a service, for example, a service that predicts the arrival of an earthquake wave and distributes an earthquake early warning is known.

  In the earthquake early warning distribution service, immediately after an earthquake occurs, observation data measured by a seismometer near the epicenter is analyzed by an organization such as the Japan Meteorological Agency. Information such as the epicenter and the magnitude (magnitude) of the earthquake is distributed to the user's mobile terminal in the corresponding area (for example, an area having a seismic intensity of 5 or less) via the distribution server.

  With such a service, the user can recognize the occurrence or arrival of a disaster even when away from home, and can start evacuation and ensuring safety.

  In addition, portable terminals having a function of transmitting user safety information for such services are also known.

  Patent Document 1 discloses a portable terminal having a function of switching to a disaster mode and transmitting safety information input by a user to a management device via a base station when instruction information for switching to the disaster mode is received. It is disclosed.

  Further, in Patent Document 2, when emergency disaster information is received, presence information set in advance or set on a screen is connected via a mobile communication network, which is set in advance or set on a screen. A portable terminal having a function of notifying first is disclosed.

  With such a function, the user can easily notify other users or the like of his / her safety.

JP 2007-018432 A JP 2009-201012 A

  However, the user may not be able to operate the mobile terminal due to loss of consciousness due to the collapse of the house or the like, or the inability to move. Even if you can operate the mobile device, it is necessary to set the function, understand the operation procedure, become familiar with the operation, etc., so the function is effective in emergency such as disaster There is also a possibility that it cannot be used. Furthermore, even if the function can be used effectively, there is a possibility that the safety information cannot be transmitted due to the communication line being cut off due to the collapse of the base station or the like. In such a case, the user cannot notify other users or the like of his / her safety.

  The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a terminal, a control method thereof, and a control program thereof that can more reliably notify the safety of a user. And

  The terminal according to the present invention communicates with a first communication unit that performs communication based on a mobile communication system, based on a wireless communication system other than the mobile communication system, and transmits a signal including first identification information. When a report is received via the two communication units and the first communication unit, transmission of a signal including the second identification information that is different from the first identification information and can be identified as a rescue signal via the second communication unit And a starting control unit.

  In the terminal according to the present invention, it is preferable that the control unit intermittently transmits a signal including the second identification information.

  In the terminal according to the present invention, it is preferable that the wireless communication method is a wireless LAN communication method, the terminal operates as a wireless LAN relay terminal, and the second identification information is ESSID.

  In the terminal according to the present invention, it is preferable that the wireless communication method is a short-range wireless communication method, the terminal operates as a searched device, and the second identification information is device or user identification information.

  The terminal according to the present invention further includes a timekeeping unit that measures time, and when the control unit receives a notification via the first communication unit, the control unit starts timekeeping by the timekeeping unit and timekeeping by the timekeeping unit. It is preferable to start transmission of a signal including the second identification information via the second communication unit when a predetermined time has elapsed since the start.

  In the terminal according to the present invention, the terminal further includes an input unit that receives input from the user, and the control unit starts time measurement by the time measurement unit and when a predetermined operation is input by the user via the input unit. It is preferable to end the timing by the timing unit.

  The terminal according to the present invention further includes a sensor that outputs data related to movement of the terminal, and a determination unit that determines whether or not the user is in a moving state based on the data output by the sensor. The unit preferably ends transmission of the signal including the second identification information when the determination unit determines that the user is in a moving state when transmission of the signal including the second identification information is started.

  In addition, in the terminal according to the present invention, the control unit is different from the notification through the first communication unit and cancels the notification when the timing unit starts timing or transmission of the signal including the second identification information. When the second notification is received, it is preferable to end the timing by the timing unit or the transmission of the signal including the second identification information.

  The terminal control method according to the present invention includes a first communication unit that performs communication based on a mobile communication system, a communication that uses a wireless communication system other than the mobile communication system, and a signal that includes first identification information. A method for controlling a terminal comprising a second communication unit for transmitting and a control unit for performing a predetermined process, and when the control unit receives a report via the first communication unit, Starting transmission of a signal including second identification information that is different from the first identification information and can be identified as a rescue signal.

  The terminal control program according to the present invention communicates with a first communication unit that performs communication based on a mobile communication system and a wireless communication system other than the mobile communication system, and transmits a signal including first identification information. A control program for a terminal comprising a second communication unit for transmission and a control unit for performing a predetermined process, and when a report is received by the control unit via the first communication unit, The transmission of the signal including the second identification information that is different from the first identification information and can be identified as the rescue signal is started.

  The terminal according to the present invention, its control method, and its control program, when receiving a report, transmit a rescue signal using a wireless communication function other than the mobile communication function, thereby ensuring the safety of the user. It is possible to notify.

It is a figure which shows an example of schematic structure of a radio | wireless communications system. It is a figure which shows an example of schematic structure of a portable terminal. It is a figure which shows an example of the display screen of a portable terminal. It is a figure which shows an example of the operation | movement flow of a portable terminal.

  Hereinafter, various embodiments of the present invention will be described with reference to the drawings. However, it should be noted that the technical scope of the present invention is not limited to these embodiments, and extends to the invention described in the claims and equivalents thereof.

  In this embodiment, immediately after the occurrence of the earthquake, the earthquake early warning is distributed to the mobile terminal of the user in the corresponding area via the distribution server. When receiving the earthquake early warning, the portable terminal activates the tethering function when the release is not instructed within the standby time, and starts transmitting a beacon including the disaster ESSID as a rescue signal.

  In addition, although this embodiment demonstrates the example in which an emergency earthquake bulletin is delivered as disaster information, this invention is not limited to this. As the disaster information, for example, information on various disasters such as tsunami prediction information, typhoon warning, and information on fire may be distributed. Further, although ETWS (Earthquake and Tsunami Warning System) is assumed as a disaster information distribution method, the present invention is not limited to this. The distribution method is not limited as long as disaster information can be distributed. For example, CBS (Cell Broadcast Service), PWS (Public Warning Service), SMS (Short Message Service), and the like may be used.

  FIG. 1 is a diagram illustrating an example of a schematic configuration of a wireless communication system 1.

  In the wireless communication system 1, exchanges (not shown) are connected to each other via a communication network 4 that is a wide area communication network. The exchange connects a wireless communication network covering a certain area to the communication network 4. In the wireless communication network, a plurality of base stations 3 are arranged so as to manage a wireless zone covering the area. Each base station 3 is connected to an exchange via a radio network controller (not shown) to which the base station 3 belongs. When the mobile terminal 2 in a certain area communicates with other mobile terminals 2 and the like inside and outside the area, the mobile terminal 2 is connected to the exchange via the base station 3 and further connected to the communication network 4. Is done.

  The communication network 4 is connected to a distribution server 5 that distributes earthquake early warnings. When the distribution server 5 receives information such as the epicenter and magnitude of the earthquake analyzed by an organization such as the Japan Meteorological Agency immediately after the occurrence of the earthquake, the distribution server 5 is an area affected by the earthquake (for example, an area having a seismic intensity of 5 or less ) From the base station 3 is provided with a function for simultaneously delivering information on earthquakes as emergency earthquake warnings.

  In addition, although this embodiment demonstrates the example in which an emergency earthquake bulletin is delivered only to the portable terminal 2 of the area (for example, area with a seismic intensity of 5 or less) to which the influence of an earthquake affects, this invention is limited to this. It is not a thing. For example, the emergency earthquake bulletin may be distributed to all the mobile terminals 2, and each mobile terminal 2 may determine whether or not each mobile terminal 2 is in an area affected by the earthquake. Since the distribution method of disaster information such as the earthquake early warning is publicly known, the description is omitted below.

  The portable terminal 2 has a tethering function. The tethering function is a function for connecting another mobile terminal 2 to the wireless communication network via the mobile terminal 2 having a connection function to the wireless communication network. When the tethering function is enabled, the portable terminal 2 operates as a wireless local area network (LAN) router and starts transmitting a beacon including an ESSID (Extended Service Set Identifier). In addition, when a connection from another mobile terminal 2 is established, the mobile terminal 2 starts relaying communication between the other mobile terminal 2 and the wireless communication network.

  In the present embodiment, an example in which the mobile terminal 2 operates as a wireless LAN router will be described, but the present invention is not limited to this. The portable terminal 2 may operate as a wireless LAN terminal or may perform communication by a wireless communication method other than a wireless LAN (IEEE (Institute of Electrical and Electronics Engineers) 802.11 standard). For example, communication may be performed by a short-range wireless communication system such as Bluetooth (registered trademark), ZigBee (registered trademark), or Z-Wave (registered trademark), or a mobile communication system such as 3G or 4G.

  In the present embodiment, the users a and b are assumed as users, the user a is a disaster victim, and the user b is a confirmer. Further, the portable terminal 2 possessed by the victim and connected to the wireless communication network is referred to as a portable terminal 2a, and the portable terminal 2 possessed by the confirmer and connected to the wireless LAN is referred to as a portable terminal 2b. To do.

  FIG. 2 is a diagram illustrating an example of a schematic configuration of the mobile terminal 2a.

  The mobile terminal 2a enables connection to a wireless communication network, reception of earthquake early warning, connection from another mobile terminal 2b, transmission of a rescue signal, and the like. For this purpose, the mobile terminal 2 a includes a first communication unit 21, a second communication unit 22, a storage unit 23, various sensors 24, an operation unit 25, a display unit 26, and a processing unit 27.

  In the present embodiment, multi-function mobile phones (so-called “smart phones”) are assumed as the mobile terminals 2a and 2b, but the present invention is not limited to this. The portable terminals 2a and 2b may be communication terminals having a wireless communication function, and may be, for example, a portable information terminal (Personal Digital Assistant, PDA), a portable game machine, a portable music player, a tablet PC, or the like.

  The first communication unit 21 includes a communication interface circuit including an antenna whose sensitivity band is 2.1 GHz, and connects the mobile terminal 2a to the wireless communication network. The first communication unit 21 establishes a radio signal line by a CDMA (Code Division Multiple Access) method or the like with the base station 3 via a channel assigned by the base station 3, and communicates with the base station 3. I do. Then, the first communication unit 21 supplies data received from the other mobile terminal 2, the distribution server 5, etc. to the processing unit 27. In addition, the first communication unit 21 transmits the data supplied from the processing unit 27 to other mobile terminals 2, the distribution server 5, and the like. Furthermore, the first communication unit 21 may include an antenna that receives a television broadcast, an antenna that receives a GPS (Global Positioning System) signal, and the like.

  The second communication unit 22 includes a communication interface circuit including an antenna whose sensitivity band is the 2.4 GHz band, and connects the other mobile terminal 2b to the mobile terminal 2a. The second communication unit 22 establishes a wireless communication line based on the IEEE802.11 standard wireless communication scheme with the other mobile terminal 2b, and performs communication with the other mobile terminal 2b. Then, the second communication unit 22 supplies the data received from the other mobile terminal 2b to the processing unit 27. Moreover, the 2nd communication part 22 transmits the data supplied from the process part 27 to the other portable terminal 2b.

  When the tethering function is enabled, the mobile terminal 2a controls the first communication unit 21 and the second communication unit 22, and relays communication between the other mobile terminal 2b and the wireless communication network (tethering). It operates as a wireless LAN router.

  The storage unit 23 includes, for example, at least one of a semiconductor memory, a magnetic disk device, and an optical disk device. The storage unit 23 stores a driver program, an operating system program, an application program, data, and the like used for processing in the processing unit 27. For example, the storage unit 23 stores, as driver programs, an input device driver program that controls the operation unit 25, an output device driver program that controls the display unit 26, and the like. In addition, the storage unit 23 includes, as application programs, an application program that receives emergency earthquake warnings and transmits a rescue signal, an application program that performs outgoing, incoming, and telephone calls, an application program that registers and edits a telephone number, An application program for transmitting and receiving e-mails and / or short messages, an application program for acquiring and displaying web pages, and the like are stored. In addition, the storage unit 23 includes, as data, an ESSID for normal times, an ESSID for disasters (for example, “SOS _” + first name, “SOS _” + phone number), a waiting time until a rescue signal starts transmission, address book data, characters It stores dictionary data, video data, image data, etc. for conversion. Furthermore, the storage unit 23 may temporarily store temporary data related to a predetermined process.

  The various sensors 24 output data indicating the acceleration, tilt, vibration, direction, and the like of the mobile terminal 2a, and are, for example, an acceleration sensor, a geomagnetic sensor, or the like. The output data of the various sensors 24 is used for determination of the movement state of the user by the processing unit 27.

  The operation unit 25 may be any device as long as the portable terminal 2a can be operated, such as a touch pad or a keyboard. The user can input letters, numbers, and the like using this device. When operated by the user, the operation unit 25 generates a signal corresponding to the operation. The generated signal is supplied to the processing unit 27 as a user instruction.

  The display unit 26 may be any device as long as it can display images, images, and the like, and is, for example, a liquid crystal display, an organic EL (Electro-Luminescence) display, or the like. The display unit 26 displays a video corresponding to the video data supplied from the processing unit 27, an image corresponding to the image data, and the like.

  The processing unit 27 includes one or a plurality of processors and their peripheral circuits. The processing unit 27 controls the overall operation of the mobile terminal 2a, and is, for example, a CPU (Central Processing Unit). The processing unit 27 executes the first communication unit 21 and the second communication so that various processes of the mobile terminal 2a are executed in an appropriate procedure according to a program stored in the storage unit 23, an operation of the operation unit 25, and the like. The operations of the unit 22, various sensors 24, the display unit 26, and the like are controlled. The processing unit 27 executes processing based on programs (driver program, operating system program, application program, etc.) stored in the storage unit 23. The processing unit 27 can execute a plurality of programs (such as application programs) in parallel.

  The processing unit 27 includes a control unit 271, a communication control unit 272, a timer unit 273, and a determination unit 274. Each of these units is a functional module realized by a program executed on a processor included in the processing unit 27. Or these each part may be mounted in the portable terminal 2a as firmware.

  The control unit 271 instructs the communication control unit 272, the time measuring unit 273, and the determination unit 274 to perform a predetermined process, triggered by the reception of the earthquake early warning, the elapse of the standby time, or the like. Details of the process will be described later.

  The communication control unit 272 implements a tethering function. That is, when the start of tethering is instructed with a predetermined ESSID as a parameter, the communication control unit 272 starts transmission of a beacon including the given ESSID so that connection from another portable terminal 2b is possible. Control the second communication unit. Further, when the connection from the other mobile terminal 2b is established, the communication control unit 272 starts the relay of communication between the other mobile terminal 2b and the wireless communication network, and the first communication unit and the first communication unit. 2 Control the communication unit. On the other hand, when the end of tethering is instructed, the communication control unit 272 controls the first communication unit and the second communication unit so as to end the relay of communication between the other mobile terminal 2b and the wireless communication network. To do.

  The time measuring unit 273 measures time. That is, when the start of time measurement is instructed using a predetermined time measurement as a parameter, the time measurement unit 273 resets the clock and starts time measurement. When the given time has elapsed, the time measuring unit 273 notifies the control unit 271 to that effect. On the other hand, when the end of the time measurement is instructed, the time measuring unit 273 ends the time measurement.

  The determination unit 274 determines whether or not the user is in a moving state. That is, when an instruction to start determination is given, the determination unit 274 activates the various sensors 24. In addition, the determination unit 274 periodically acquires data indicating the acceleration, tilt, vibration, direction, and the like of the mobile terminal 2a from the various sensors 24, and whether the user of the mobile terminal 2a is in a moving state based on the acquired data. Determine whether or not. When it is determined that the user is in the moving state, the determination unit 274 notifies the control unit 271 to that effect. On the other hand, when an end of determination is instructed, the determination unit 274 stops the various sensors 24 and ends the process.

  Note that a method described in Japanese Patent Application Laid-Open No. 2011-180023, Japanese Patent Application Laid-Open No. 2011-171908, Japanese Patent Application Laid-Open No. 2009-204429, or the like can be used to determine the movement state of the user.

  Hereinafter, processing by the control unit 271 will be described.

(First operation mode)
The control unit 271 waits for the reception of the earthquake early warning.

  When the activation of the tethering function is instructed by the user via the operation unit 25, the control unit 271 acquires the normal time ESSID from the storage unit 23, and uses the acquired ESSID as a parameter to tether the communication control unit 272. Instruct the start of. On the other hand, when the user instructs to disable the tethering function via the operation unit 25, the control unit 271 instructs the communication control unit 272 to end tethering.

  FIG. 3 is a diagram illustrating an example of a display screen of the mobile terminals 2a and 2b.

  FIG. 3A shows an example of a wireless LAN setting screen in another mobile terminal 2b. For each network, an ESSID is displayed on the left side of the screen, and a received signal strength indication (RSSI) is displayed on the right side of the screen.

(Second operation mode)
When the earthquake early warning is received from the distribution server 5 via the first communication unit 21, the control unit 271 outputs the content of the received emergency earthquake early warning to the display unit 26. In addition, the control unit 271 acquires the standby time from the storage unit 23 until the rescue signal starts to be transmitted, and instructs the time measuring unit 273 to start timing using the acquired standby time as a parameter.

  FIG.3 (b) shows an example of the display screen of the earthquake early warning in the portable terminal 2a. In the upper part of the screen, there is an indication that the earthquake should be prepared for shaking, and in the lower part of the screen, a “Release” button is displayed. Is done.

  When the user instructs to cancel the transmission start of the rescue signal via the operation unit 25, the control unit 271 instructs the timing unit 273 to end the timing. The control unit 271 also instructs the time measuring unit 273 to end the timekeeping even when a cancellation report for the earthquake early warning is received from the distribution server 5 via the first communication unit 21. Then, the control unit 271 returns to the standby state for receiving the earthquake early warning.

(Third operation mode)
On the other hand, when the time measuring unit 273 notifies that the standby time has elapsed, the control unit 271 acquires the disaster ESSID from the storage unit 23 and starts tethering to the communication control unit 272 using the acquired ESSID as a parameter. Instruct. Thereby, the beacon including the disaster ESSID starts to be transmitted as a rescue signal. In addition, the control unit 271 instructs the determination unit 274 to start determination.

  FIG.3 (c) shows an example of the setting screen of wireless LAN in the other portable terminal 2b. For each network, the ESSID is displayed on the left side of the screen, and the reception intensity is displayed on the right side of the screen. From the description format of each ESSID, it can be seen that the first ESSID (“SOS_Yamada”) is a rescue signal, and the reception intensity value indicates that the mobile terminal 2a is nearby.

  In the present embodiment, an example has been described in which the confirmer visually confirms the position of the mobile terminal 2a using the wireless LAN setting screen in the other mobile terminal 2b. However, the present invention is not limited to this. Absent. For example, the other mobile terminal 2b sequentially stores the ESSID and reception intensity received from the mobile terminal 2a, the position information of the other mobile terminal 2b, time information, and the like, and analyzes the stored information in real time or in batch. . Then, when the position of the mobile terminal 2a is specified, the other mobile terminal 2b may notify the confirmer to that effect by a warning sound, vibration, screen display, or the like.

  When the determination unit 274 notifies that the user is in a moving state, the control unit 271 instructs the communication control unit 272 to end tethering and also instructs the determination unit 274 to end determination. In addition, even when the user gives an instruction to cancel the transmission of the rescue signal via the operation unit 25, the control unit 271 instructs the communication control unit 272 to end tethering and also determines the determination unit 274 to make a determination. Instruct the end. Further, even when a cancellation report for the earthquake early warning is received from the distribution server 5 via the first communication unit 21, the control unit 271 instructs the communication control unit 272 to end tethering and also determines the determination unit 274. Instructs the end of the determination. Then, the control unit 271 returns to the standby state for receiving the earthquake early warning.

  FIG. 4 is a diagram illustrating an example of an operation flow of the control unit 271. The operation flow described below is executed mainly by the processing unit 27 in cooperation with each element of the mobile terminal 2a based on a program stored in the storage unit 23 in advance.

  The control unit 271 waits for the reception of the earthquake early warning.

  When the earthquake early warning is not received from the distribution server 5 via the first communication unit 21 (step S400-No), the control unit 271 returns to the emergency earthquake early warning reception determination process (step S400).

  On the other hand, when the earthquake early warning is received from the distribution server 5 via the first communication unit 21 (step S400-Yes), the control unit 271 outputs the content of the received emergency earthquake early warning to the display unit 26 ( Step S402).

  In addition, the control unit 271 acquires the standby time from the storage unit 23 until the rescue signal starts to be transmitted, and instructs the time measuring unit 273 to start timing using the acquired standby time as a parameter (step S404).

  When cancellation of the start of transmission of the rescue signal is instructed by the user via the operation unit 25 (step S406—Yes), the control unit 271 instructs the time measurement unit 273 to end the time measurement (step S412). And the control part 271 returns to the determination process (step S400) of reception of an earthquake early warning.

  On the other hand, when the user does not give an instruction to cancel the transmission of the rescue signal via the operation unit 25 (No in step S406), the distribution server 5 sends a cancellation report for the emergency earthquake warning via the first communication unit 21. When received (step S408-Yes), the control unit 271 instructs the time measurement unit 273 to end the time measurement (step S412). And the control part 271 returns to the determination process (step S400) of reception of an earthquake early warning.

  On the other hand, when no cancellation report for the earthquake early warning is received from the distribution server 5 via the first communication unit 21 (step S408-No), the time measuring unit 273 is not notified that the standby time has elapsed (step S408). (S410-No), the control unit 271 returns to the determination process of the instruction to cancel the transmission start of the rescue signal (step S406).

  On the other hand, when the time measuring unit 273 notifies that the standby time has elapsed (step S410—Yes), the control unit 271 acquires the disaster-use ESSID from the storage unit 23, and uses the acquired ESSID as a parameter for communication. The controller 272 is instructed to start tethering (step S414).

  In addition, the control unit 271 instructs the determination unit 274 to start determination (step S416).

  When the determination unit 274 notifies that the user is in a moving state (step S418—Yes), the control unit 271 instructs the communication control unit 272 to end tethering (step S424).

  Further, the control unit 271 instructs the determination unit 274 to end the determination (step S426). And the control part 271 returns to the determination process (step S400) of reception of an earthquake early warning.

  On the other hand, when the determination unit 274 does not notify that the user is in the moving state (step S418-No), when the user instructs the release of the rescue signal transmission start via the operation unit 25 (step S420). -Yes), the control unit 271 instructs the communication control unit 272 to end tethering (step S424).

  Further, the control unit 271 instructs the determination unit 274 to end the determination (step S426). And the control part 271 returns to the determination process (step S400) of reception of an earthquake early warning.

  On the other hand, when the user does not instruct the release of the transmission start of the rescue signal via the operation unit 25 (step S420-No), the distribution server 5 sends a cancellation report for the earthquake early warning via the first communication unit 21. When received (step S422-Yes), the control unit 271 instructs the communication control unit 272 to end tethering (step S424).

  Further, the control unit 271 instructs the determination unit 274 to end the determination (step S426). And the control part 271 returns to the determination process (step S400) of reception of an earthquake early warning.

  On the other hand, when the cancellation report for the earthquake early warning is not received from the distribution server 5 via the first communication unit 21 (step S422-No), the control unit 271 performs the determination process of the user's movement state (step S418). Return.

As described above, when an emergency earthquake warning is received, when release is not instructed within the standby time, the tethering function is enabled and transmission of a beacon including a disaster ESSID is started as a rescue signal. Thus, it is possible to more reliably notify the safety of the user.
Note that as can be understood from the above description, the present embodiment can be implemented only by an application program.

  Note that the present invention is not limited to this embodiment. For example, in the present embodiment, the mobile terminal 2a operates as a wireless LAN router and transmits a beacon including a disaster ESSID, but transmits a probe response including a disaster ESSID in response to reception of a probe request. May be. In addition, the mobile terminal 2a operates as a device to be searched in a short-range wireless communication system such as Bluetooth (registered trademark), ZigBee (registered trademark), Z-Wave (registered trademark), etc. A search response including a device name for time (for example, “SOS _” + first name, “SOS _” + phone number) may be transmitted. Thereby, it is possible to increase the possibility that a rescue signal is received.

  Moreover, in this embodiment, although the control part 271 started transmission of the rescue signal in response to reception of emergency earthquake early warning and progress of standby time, it is good also considering other events as a trigger. For example, it may be triggered by an instruction from the user. As a result, even if the communication line is cut off due to the collapse of the base station 3 and emergency earthquake warnings cannot be received, or disaster information is not delivered in the first place (when confined in a tunnel, lost in a snowy mountain, etc.) It becomes possible to start sending a rescue signal.

  In the present embodiment, when the control unit 271 receives a cancellation report for the emergency earthquake warning, the control unit 271 ends the series of processes and returns to the determination process for receiving the emergency earthquake warning, but the control unit 271 The distribution server 5 or the like may be inquired about the occurrence of an earthquake without waiting for reception of a cancellation report. As a result, the mobile terminal 2a can be controlled more accurately.

  In the present embodiment, the determination unit 274 determines whether or not the user is in a moving state based on the data acquired from the various sensors 24, but acquired from a GPS (Global Positioning System) unit (not shown). The determination may be performed based on the data. Thereby, it becomes possible to perform the said determination more correctly.

  Moreover, you may perform the transmission of the beacon containing ESSID for disasters intermittently. For example, the transmission is continuously repeated for 5 minutes and then paused for 5 minutes. Further, the transmission time and / or the downtime may be changed according to the elapsed time from the reception of the earthquake early warning. For example, as time elapses from the reception of the earthquake early warning, the transmission time is shortened and the downtime is lengthened. Thereby, it becomes possible to suppress the consumption of a battery.

  Moreover, the control part 271 may restrict | limit the function of the portable terminal 2a, when transmission of the beacon containing time measurement and / or disaster time ESSID is started. For example, even if the connection function to the wireless communication network is stopped and the tethering function is enabled, the relay of communication between the other portable terminal 2b and the wireless communication network is not performed. Thereby, it becomes possible to further suppress the consumption of the battery.

  In addition, disaster information that triggers the transmission of rescue signals (for example, emergency earthquake warnings greater than or equal to a predetermined seismic intensity), waiting time until the start of rescue signal transmission, rescue signal transmission start cancellation operation, rescue signal transmission method (for example, , Wireless LAN router), disaster ESSID, etc. may be changeable by the user and / or the system. As a result, it is possible to cope with various disasters, damage situations, and the like.

  In addition, a computer program for causing a computer to implement each function included in the processing unit 27 may be provided in a form recorded on a computer-readable recording medium such as a magnetic recording medium or an optical recording medium.

  It should be understood by those skilled in the art that various changes, substitutions and modifications can be made thereto without departing from the spirit and scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Wireless communication system 2, 2a, 2b Portable terminal 21 1st communication part 22 2nd communication part 23 Memory | storage part 24 Various sensors 25 Operation part 26 Display part 27 Processing part 271 Control part 272 Communication control part 273 Time measuring part 274 Determination part 3 Base station 4 Communication network 5 Distribution server

Claims (9)

In a terminal in a communication system comprising a terminal and another terminal communicably connected to the terminal,
The terminal
A first communication unit that performs communication based on a mobile communication method;
A second communication unit that performs communication based on a wireless communication method other than the mobile communication method and transmits a signal including first identification information;
A timekeeping section for measuring time,
When the notification is received via the first communication unit, the time measurement unit starts time measurement , and when a predetermined time has elapsed since the time measurement unit started time measurement, the second communication unit is used. A control unit that starts transmission of a signal including a rescue signal ESSID that is different from the first identification information and that can be identified as a rescue signal,
A signal including the rescue signal ESSID is received by the other terminal, and the received rescue signal ESSID and the received intensity at the other terminal are displayed at the other terminal. Terminal.   The terminal according to claim 1, wherein the control unit intermittently transmits a signal including the rescue signal ESSID. The wireless communication method is a wireless LAN communication method,
The terminal according to claim 1, wherein the terminal operates as a wireless LAN relay terminal. The wireless communication method is a short-range wireless communication method,
The terminal operates as a searched device,
The terminal according to claim 1 or 2, wherein the rescue signal ESSID is identification information of a device or a user. It further includes an input unit that receives input from the user,
Wherein, in the case of starting the time measurement by the time measuring unit, when a predetermined operation is input by the user via the input unit, and ends the time measurement by the time measuring unit, one of the claims 1 to 4 terminal according to an item or. A sensor for outputting data relating to movement of the terminal;
A determination unit that determines whether the user is in a moving state based on the data output by the sensor;
The control unit ends transmission of the signal including the rescue signal ESSID when the determination unit determines that the user is in a moving state when transmission of the signal including the rescue signal ESSID is started. The terminal according to any one of claims 1 to 5 . The control unit is different from the notification via the first communication unit and cancels the notification when the timing unit starts timing or the transmission of the signal including the rescue signal ESSID. terminal according upon receipt, to end the transmission of the signal containing the ESSID timekeeping or the mayday by the timing unit, in any one of claims 1 to 6. A first communication unit that performs communication based on a mobile communication method, a second communication unit that performs communication based on a wireless communication method other than the mobile communication method, and transmits a signal including first identification information; A control method of a terminal in a communication system comprising a control unit that performs the processing of, a terminal provided with a time measuring unit that measures time, and another terminal that is communicably connectable to the terminal, the control unit comprising:
When the notification is received via the first communication unit, the time measurement unit starts time measurement , and when a predetermined time has elapsed since the time measurement unit started time measurement, the second communication unit is used. Starting transmission of a signal including an ESSID for a rescue signal that is different from the first identification information and can be identified as a rescue signal,
A signal including the rescue signal ESSID is received by the other terminal, and the received rescue signal ESSID and the received intensity at the other terminal are displayed at the other terminal. Terminal control method. A first communication unit that performs communication based on a mobile communication method, a second communication unit that performs communication based on a wireless communication method other than the mobile communication method, and transmits a signal including first identification information; A control program for a terminal in a communication system including a control unit that performs the above-described processing, a terminal including a time measuring unit that measures time, and another terminal that is communicably connected to the terminal, and the control unit includes:
When the notification is received via the first communication unit, the time measurement unit starts time measurement , and when a predetermined time has elapsed since the time measurement unit started time measurement, the second communication unit is used. And starting transmission of a signal including a rescue signal ESSID which is different from the first identification information and can be identified as a rescue signal,
A signal including the rescue signal ESSID is received by the other terminal, and the received rescue signal ESSID and the received intensity at the other terminal are displayed at the other terminal. Terminal control program.

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