JP6182832B2 - Server, communication terminal, safety information processing method, and safety information processing program - Google Patents

Description

  The present invention relates to a server, a communication terminal, a safety information processing method, and a safety information processing program.

  In recent years, communication terminals such as mobile phones (hereinafter sometimes referred to as “terminals”) have become widespread, making it easier to check the safety of users of terminals when a disaster such as an earthquake occurs.

  However, when a disaster such as an earthquake occurs, it is assumed that the disaster area is outside the communication area due to the collapse or failure of the base station, and the terminal cannot communicate via the base station in the disaster area.

  For such an assumed situation, a plurality of terminals outside the communication area perform near field communication to share information on each terminal, and when any terminal enters the communication area, the terminal There is a conventional technique in which information of its own terminal and other terminals is collectively transmitted to a base station.

JP 2009-124448 A

  However, the above prior art has not proposed how to use the information of the own terminal and other terminals to grasp the status of each victim. Therefore, in the above-described conventional technology, it is not possible to perform a rescue operation considering the state of each victim.

  The disclosed technology has been made in view of the above, and provides a server, a communication terminal, a safety information processing method, and a safety information processing program capable of supporting rescue activities in consideration of the status of each victim. Objective.

  A server according to an aspect of the disclosure includes a communication unit that receives, from the first communication terminal, first safety information related to the first communication terminal and second safety information related to the second communication terminal, and the first safety terminal. A determination unit that determines a safety level indicating a safety state of each of the first communication terminal and the second communication terminal based on the information and the second safety information.

  A communication terminal according to an aspect of the disclosure includes a first communication unit that receives first safety information related to the other communication terminal from another communication terminal, and second safety information related to the own terminal in chronological order from the latest. While storing a plurality, a storage unit that stores the latest one of the first safety information for each of the other communication terminals, and a second communication unit that transmits the stored safety information to the base station, It has.

  According to the disclosed aspect, it is possible to support rescue activities in consideration of the status of each victim.

FIG. 1 is a diagram illustrating an example of a communication system according to an embodiment. FIG. 2 is a functional block diagram illustrating an example of a terminal according to an embodiment. FIG. 3 is a functional block diagram illustrating an example of a safety information server according to an embodiment. FIG. 4 is a flowchart for explaining the operation of the terminal according to the embodiment. FIG. 5 is a diagram illustrating an example of a disaster mode screen according to an embodiment. FIG. 6 is a diagram illustrating an example of a safety level according to an embodiment. FIG. 7 is a diagram for explaining the processing of the terminal according to the embodiment. FIG. 8 is a sequence diagram for explaining the operation of the communication system according to the embodiment. FIG. 9 is a diagram for explaining the processing of the safety information server according to the embodiment. FIG. 10 is a diagram illustrating an example of a screen display of the safety information server according to the embodiment. FIG. 11 is a diagram illustrating an example of a screen display of the safety information server according to the embodiment. FIG. 12 is a diagram illustrating a hardware configuration example of the terminal. FIG. 13 is a diagram illustrating a hardware configuration example of the safety information server.

  Hereinafter, embodiments of a server, a communication terminal, a safety information processing method, and a safety information processing program disclosed in the present application will be described in detail with reference to the drawings. The server, communication terminal, safety information processing method, and safety information processing program disclosed in the present application are not limited by this embodiment. Moreover, the same code | symbol is attached | subjected to the structure which has the same function in an Example, and the overlapping description is abbreviate | omitted.

[Example]
<Outline of communication system>
FIG. 1 is a diagram illustrating an example of a communication system according to an embodiment. In FIG. 1, the communication system 1 includes terminals 10-1 to 10-5, base stations 20-1 and 20-2, a safety information server 30, and a communication network 40. The base station 20-1 forms a communication area 25-1, and the base station 20-2 forms a communication area 25-2.

  When the terminal 10-1 is located outside the communication area of the base station, the terminal 10-1 searches for other peripheral terminals (hereinafter sometimes referred to as “peripheral terminals”) that can communicate with the terminal by short-range communication. Similarly, when the terminal 10-2 is located outside the communication area of the base station, the terminal 10-2 searches for a peripheral terminal. FIG. 1 illustrates a case where the terminal 10-1 can perform near field communication with the terminals 10-3 and 10-4, and the terminal 10-2 can perform near field communication with the terminals 10-4 and 10-5. .

  The terminal 10-1 transmits safety information related to the own terminal (hereinafter also referred to as “own terminal safety information”) to the terminals 10-3 and 10-4, and from the terminals 10-3 and 10-4, Safety information regarding each peripheral terminal of terminals 10-3 and 10-4 (hereinafter, sometimes referred to as “peripheral terminal safety information”) is received. Similarly, the terminal 10-2 transmits the safety information related to the own terminal to the terminals 10-4 and 10-5, and from the terminals 10-4 and 10-5 to the terminals 10-4 and 10-5. Receive safety information. Therefore, the safety information regarding the terminal 10-4 is stored in both the terminals 10-1 and 10-2.

  Then, when the terminal 10-1 moves and enters the communication area 25-1, the base station 20-1 sends to the base station 20-1 safety information about the terminal, safety information about the terminal 10-3, and terminal 10-4. Send safety information about. The safety information is received by the safety information server 30 through the communication network 40 via the base station 20-1.

  On the other hand, when the terminal 10-2 moves and enters the communication area 25-2, the terminal 10-2 sends the safety information about the terminal 10-2, the safety information about the terminal 10-4, Send safety information about. The safety information is received by the safety information server 30 through the communication network 40 via the base station 20-2.

  The safety information server 30 determines a safety level indicating the safety status of each user of the terminals 10-1 to 10-5 based on the received safety information.

<Terminal configuration>
FIG. 2 is a functional block diagram illustrating an example of a terminal according to an embodiment. In FIG. 2, the terminal 10 includes an antenna 101, a peripheral terminal communication unit 102, a base station communication unit 103, an emergency signal reception unit 104, a mode setting unit 105, a control unit 106, a display unit 107, an operation, Unit 108, information update unit 109, position information acquisition unit 110, battery remaining amount acquisition unit 111, and storage unit 112. In addition, the storage unit 112 includes a local terminal information storage unit 113 and a peripheral terminal information storage unit 114.

  The peripheral terminal communication unit 102 communicates with the peripheral terminals by short-range communication. The near field communication is realized by a communication method such as Bluetooth (registered trademark) or infrared communication. The peripheral terminal communication unit 102 outputs a beacon signal received from the peripheral terminal via the antenna 101 to the control unit 106. Also, the peripheral terminal communication unit 102 transmits its own terminal safety information input from the control unit 106 to the peripheral terminal via the antenna 101. Also, the peripheral terminal communication unit 102 outputs the peripheral terminal safety information received from the peripheral terminal via the antenna 101 to the control unit 106. Other terminals capable of short-range communication with the terminal 10, that is, peripheral terminals are searched using the beacon signal by the control unit 106, and the search result is input to the peripheral terminal communication unit 102. The peripheral terminal communication unit 102 performs near field communication with the peripheral terminal according to the search result.

  The base station communication unit 103 communicates with the base station. Communication with the base station is realized by a mobile communication system such as 3GPP or LTE. Base station communication section 103 outputs a BCH (Broadcast Channel) signal and a pilot channel signal received from base station via antenna 101 to control section 106. Further, the base station communication unit 103 transmits the own terminal safety information and the peripheral terminal safety information input from the control unit 106 to the base station via the antenna 101. A base station capable of mobile communication with the terminal 10 (hereinafter also referred to as “neighboring base station”) is searched by the control unit 106 using the BCH signal and the pilot channel signal, and the search result is the base station communication unit. 103. The base station communication unit 103 performs mobile communication with neighboring base stations according to the search result.

  The emergency signal receiving unit 104 receives an emergency signal transmitted simultaneously in the event of a disaster, such as an emergency earthquake warning, via the antenna 101, and outputs the received emergency signal to the mode setting unit 105. Simultaneous transmission of emergency signals is performed by a communication method using FM waves or the like.

  The mode setting unit 105 sets the operation mode of the terminal 10 and notifies the control unit 106 of the set operation mode. The operation mode is either “disaster mode” or “normal mode”. The “disaster mode” is a mode used when a disaster occurs, and the “normal mode” is a mode used during normal times. When the emergency signal is input from the emergency signal receiving unit 104, the mode setting unit 105 switches the operation mode from the normal mode to the disaster mode. Hereinafter, a case where the terminal 10 is in the disaster mode will be described, and a description about a case where the terminal 10 is in the normal mode will be omitted.

  The position information acquisition unit 110 acquires position information indicating the current position of the terminal 10 and outputs the acquired position information to the control unit 106. Since the current position of the terminal 10 is specified by the latitude and longitude, the position information includes latitude information and longitude information. The position information can be acquired by a GPS (Global Positioning System) function of the terminal 10.

  The remaining battery level acquisition unit 111 acquires the remaining battery level of the terminal 10 and outputs a value indicating the acquired remaining battery level to the control unit 106.

  When the operation mode is switched from the normal mode to the disaster mode, the control unit 106 causes the display unit 107 to display a predetermined disaster mode screen. This screen display will be described later. In addition, the control unit 106 outputs peripheral terminal safety information input from the peripheral terminal communication unit 102 to the information update unit 109. In addition, the control unit 106 outputs the position information input from the position information acquisition unit 110 and the remaining battery level input from the remaining battery level income unit 111 to the information update unit 109 together with the telephone number of the terminal itself. Also, the control unit 106 outputs the own terminal safety information acquired from the own terminal information storage unit 113 to the peripheral terminal communication unit 102. In addition, the control unit 106 outputs the local terminal safety information acquired from the local terminal information storage unit 113 and the peripheral terminal safety information acquired from the peripheral terminal information storage unit 114 to the base station communication unit 103.

  The information updating unit 109 stores the position information, the remaining battery level, and the telephone number of the own terminal input from the control unit 106 in the own terminal information storage unit 113 as own terminal safety information. The information update unit 109 updates the own terminal safety information stored in the own terminal information storage unit 113 at predetermined time intervals. Further, the information update unit 109 stores the peripheral terminal safety information input from the control unit 106 in the peripheral terminal information storage unit 114. The peripheral terminal safety information stored in the peripheral terminal information storage unit 114 is updated every time the peripheral terminal safety information is input from the control unit 106 to the information update unit 109, that is, the peripheral terminal safety information is transmitted by the peripheral terminal communication unit 102. This is done every time.

  The display unit 107 displays various screens under display control of the control unit 106.

  The operation unit 108 receives various instructions from the user of the terminal 10 and notifies the control unit 106 of the received instructions.

<Configuration of safety information server>
FIG. 3 is a functional block diagram illustrating an example of a safety information server according to an embodiment. In FIG. 3, the safety information server 30 includes a communication unit 301, a control unit 302, a safety level determination unit 303, a display unit 304, an operation unit 305, and a safety information storage unit 306.

  The communication unit 301 outputs the own terminal safety information and the peripheral terminal safety information received from the terminal 10 via the base station to the control unit 302. Further, the communication unit 301 receives an emergency signal having the same content as the emergency signal received by the emergency signal receiving unit 104 of the terminal 10 and outputs the received emergency signal to the control unit 302.

  The control unit 302 stores the own terminal safety information and the peripheral terminal safety information input from the communication unit 301 in the safety information storage unit 306. The update of the safety information stored in the safety information storage unit 306 is performed every time the local terminal safety information and the peripheral terminal safety information are input from the communication unit 301 to the control unit 302, that is, This is performed every time peripheral terminal safety information is received. Further, the control unit 302 indicates that the safety information is updated every time the own terminal safety information and the neighboring terminal safety information are stored in the safety information storage unit 306, that is, every time the safety information is updated. Notify In addition, the control unit 302 outputs an emergency signal input from the communication unit 301 to the safety level determination unit 303.

  The safety level determination unit 303 refers to the safety information storage unit 306 each time the safety information is updated, and determines the safety level of the user of each terminal. The determination of the safety level will be described later.

  The display unit 304 displays various screens under the control of the control unit 302. This screen display will be described later.

  The operation unit 305 receives various instructions from the user of the safety information server 30 and notifies the control unit 302 of the received instructions.

<Terminal operation>
FIG. 4 is a flowchart for explaining the operation of the terminal according to the embodiment.

  The emergency signal receiving unit 104 waits for reception of an emergency signal in the background while the terminal 10 is operating in the normal mode (step S401: No). When the emergency signal is received by the emergency signal receiving unit 104 (step S401: Yes), the mode setting unit 105 switches the operation mode of the terminal 10 from the normal mode to the disaster mode (step S402). That is, a series of processes in steps S403 to S412 are operations of the terminal 10 in the disaster mode.

  When the operation mode is switched from the normal mode to the disaster mode, the control unit 106 causes the display unit 107 to display a predetermined disaster mode screen (step S403).

  Here, FIG. 5 is a diagram illustrating an example of a disaster mode screen according to an embodiment. In FIG. 5, the display unit 107 and the operation unit 108 have a laminated structure. The disaster mode screen illustrated in FIG. 5 includes items 61 to 65. That is, the display unit 107 displays a message as an item 61 informing the user of the terminal 10 of the disaster mode and prompting the user of the terminal 10 to input a safety state. Moreover, the display part 107 displays the items 62-64 as a choice of the safety state input. The user of the terminal 10 can select the safety state by touching any of the items 62 to 64. Further, the display unit 107 displays, as an item 65, a message indicating that the mode is shifted to the “automatic safety confirmation mode” when none of the items 62 to 64 is touched. In the “automatic safety confirmation mode”, the information updating unit 109 updates the own terminal safety information stored in the own terminal information storage unit 113 at predetermined time intervals by repeatedly performing the processes of steps S406 to S411. It is a mode to do.

  When there is an input to the operation unit 108 by touching any of the items 62 to 64 within a predetermined time after switching to the disaster mode (step S404: Yes), the control unit 106 displays the position information, the battery The remaining amount and the telephone number of the terminal are output to the information updating unit 109 together with the safety level corresponding to the selected safety state. The information updating unit 109 stores the position information, the remaining battery level, the telephone number of the own terminal, and the safety level input from the control unit 106 in the own terminal information storage unit 113 as the own terminal safety information (step S405).

  In step S411, the control unit 106 searches for a base station capable of mobile communication with the terminal 10, that is, a neighboring base station, and determines whether or not a neighboring base station exists. When there is a neighboring base station (step S411: Yes), the control unit 106 acquires the own terminal safety information stored in step S405 from the own terminal information storage unit 113 and outputs it to the base station communication unit 103. Therefore, when a neighboring base station exists (step S411: Yes), the base station communication unit 103 immediately transmits its own terminal safety information to the neighboring base station after inputting any of the items 62 to 64 (step S412). ). On the other hand, when there is no neighboring base station (step S411: No), the process returns to step S406.

  Here, FIG. 6 is a diagram illustrating an example of the safety level of one embodiment. As shown in FIG. 6, each of the items 62 to 64 in FIG. 5 corresponds to each of the safety levels 2 to 4. That is, when the item 62 is touched, the safety level of the own terminal safety information becomes “2”. When the item 63 is touched, the safety level of the own terminal safety information becomes “3”. When the item 64 is touched, the safety level of the own terminal safety information becomes “4”. The greater the safety level, the more dangerous the user of the terminal 10 is. The correspondence between the elapsed time and the safety level in FIG. 6 will be described later.

  When none of the items 62 to 64 is touched within a predetermined time after switching to the disaster mode (step S404: No), the information update unit 109 displays the own terminal safety information stored in the own terminal information storage unit 113. Update (step S406).

  In step S407, the control unit 106 searches for a peripheral terminal and determines whether there is a peripheral terminal. When there is a peripheral terminal (step S407: Yes), the peripheral terminal communication unit 102 transmits its own terminal safety information to the peripheral terminal (step S408), and receives the peripheral terminal safety information from the peripheral terminal (step S409). . When there is a peripheral terminal (step S407: Yes), the information update unit 109 uses the peripheral terminal safety information received in step S409 to obtain the peripheral terminal safety information stored in the peripheral terminal information storage unit 114. Update (step S410). On the other hand, when there is no peripheral terminal (step S407: No), the process returns to step S406.

  In step S411, the control unit 106 searches for a base station capable of mobile communication with the terminal 10, that is, a neighboring base station, and determines whether or not a neighboring base station exists. When there is a neighboring base station (step S411: Yes), the base station communication unit 103 transmits the own terminal safety information and the neighboring terminal safety information input from the control unit 106 to the neighboring base station (step S412). On the other hand, when there is no neighboring base station (step S411: No), the process returns to step S406.

<Terminal processing>
FIG. 7 is a diagram for explaining the processing of the terminal according to the embodiment. In FIG. 7, the own terminal information storage unit 113 stores up to five pieces of local terminal safety information from the latest one in time series, while up to five pieces of peripheral terminal safety information that can be stored in the peripheral terminal information storage unit 114. The case where it restricts to is shown. In addition, when there are a plurality of peripheral terminals, the peripheral terminal information storage unit 114 stores the latest one peripheral terminal safety information for each peripheral terminal as shown in FIG. That is, the peripheral terminal information storage unit 114 is the latest one peripheral for one peripheral terminal even when the peripheral terminal communication unit 102 receives a plurality of peripheral terminal safety information in time series from any one peripheral terminal. Only terminal safety information is stored.

  Further, as illustrated in FIG. 7, the information update unit 109 adds the update date / time of each safety information and the priority order according to the update date / time to each safety information. Priorities are assigned in order from the latest date and time.

  Note that the safety information associated with the “safety level” at the time point stored in the storage unit 112 is the safety information input in step S404. That is, FIG. 7 shows a case where the item 63 corresponding to the safety level “3” is selected in the peripheral terminal having the telephone number “08066668888”. Further, the case where the item 62 corresponding to the safety level “2” is selected in the peripheral terminal having the telephone number “08066993388” is shown. On the other hand, in FIG. 7, items 62 to 64 within the predetermined time after switching to the disaster mode for the own terminal having the telephone number “09011113333” and the peripheral terminals having the telephone numbers “08022224444”, “08043345115”, and “09077779999” Since none of these were touched, no “safety level” was attached.

  As shown in FIG. 7, the own terminal safety information and the neighboring terminal safety information stored in the storage unit 112 are transmitted to the neighboring base stations by the base station communication unit 103.

<Operation of communication system>
FIG. 8 is a sequence diagram for explaining the operation of the communication system according to the embodiment.

  In FIG. 8, peripheral terminals a to c correspond to terminals 10-3 to 10-5 in FIG. 1, and terminals A and B correspond to terminals 10-1 and 10-2 in FIG. Base stations A and B correspond to base stations 20-1 and 20-2 in FIG. 1, respectively.

  In FIG. 8, information A-1 and A-2 are the own terminal safety information of the terminal A, and information B-1 and B-2 are the own terminal safety information of the terminal B. Information a is peripheral terminal safety information that terminal A receives from peripheral terminal a, and information b-1 is peripheral terminal safety information that terminal A receives from peripheral terminal b. Information b-2 is peripheral terminal safety information that terminal B receives from peripheral terminal b, and information c is peripheral terminal safety information that terminal B receives from peripheral terminal c.

  Terminal A transmits information A-1 to peripheral terminal a and receives information a from peripheral terminal a (steps S801 and S802). Terminal A transmits information A-2 to peripheral terminal b and receives information b-1 from peripheral terminal b (steps S803 and S804). Therefore, the information A-1 and A-2 are stored in the own terminal information storage unit 113 of the terminal A, and the information a and b-1 are stored in the peripheral terminal information storage unit 114 of the terminal A.

  On the other hand, the terminal B transmits the information B-1 to the peripheral terminal b and receives the information b-2 from the peripheral terminal b (steps S805 and S806). Further, the terminal B transmits the information B-2 to the peripheral terminal c and receives the information c from the peripheral terminal c (steps S807 and S808). Therefore, the terminal B's own terminal information storage unit 113 stores information B-1 and B-2, and the terminal B's peripheral terminal information storage unit 114 stores information b-2 and c.

  When the terminal A moves and enters the communication area of the base station A, the terminal A transmits information A-1, A-2, information a, and information b-1 to the base station A (step S809). These pieces of information are received by the safety information server 30 via the base station A (step S810).

  Further, when the terminal B moves and enters the communication area of the base station B, the terminal B transmits information B-1, B-2, information b-2, and information c to the base station B (step S811). . These pieces of information are received by the safety information server 30 via the base station B (step S812).

  Therefore, the safety information storage unit 306 of the safety information server 30 includes information A-1, A-2, information B-1, B-2, information a, information b-1, b-2, and information c. Remembered. That is, for the peripheral terminal safety information of the peripheral terminal b, information b-1 and b-2 respectively transmitted from two different terminals A and B are stored in the safety information server 30. Thus, the safety information server 30 can collect the safety information of the same terminal from a plurality of different terminals. The safety level determination unit 303 of the safety information server 30 determines the safety level of the user of each terminal based on the safety information collected in this way.

<Safety information server processing>
FIG. 9 is a diagram for explaining the processing of the safety information server according to the embodiment. As a result of the operation shown in FIG. 8, the safety information storage unit 306 stores safety information as shown in FIG.

  However, before the safety level is determined by the safety level determination unit 303, the safety level of each terminal of the telephone numbers “09011113333”, “08022224444”, “08043345115”, “09077779999”, “08022334455”, “09091916666”, “09012125555” Is blank. In addition, before the safety level is determined by the safety level determination unit 303, the “rescue priority” of all terminals is also blank.

  On the other hand, the safety levels “3” and “2” of the terminals with the telephone numbers “08066668888” and “08066993388” already exist even before the safety level determination unit 303 determines the safety level. As shown in FIG. 7, the item 63 corresponding to the safety level “3” is selected in the peripheral terminal having the telephone number “08066668888”, and the safety level “2” is corresponding to the peripheral terminal having the telephone number “08066993388”. This is because the item 62 to be selected is selected.

  Further, “disaster occurrence time” illustrated in FIG. 9 is a time when the emergency signal receiving unit 104 of the terminal 10 and the communication unit 301 of the safety information server 30 receive the emergency signal.

  The safety level determination unit 303 determines the safety level based on the “update date and time” and “position information” of the safety information.

  Specifically, the safety level determination unit 303 determines the safety level as shown in FIG. That is, the safety level determination unit 303 determines the safety level of the terminal whose position information does not change within 24 hours from the disaster occurrence time as “1”. Also, the safety level determination unit 303 determines the safety level of the terminal whose location information has changed within 72 hours from the disaster occurrence time as “2”. In addition, the safety level determination unit 303 determines the safety level of the terminal whose position information does not change within 24 hours and 48 hours from the disaster occurrence time as “3”. In addition, the safety level determination unit 303 determines the safety level of the terminal whose position information does not change within 48 hours and 72 hours from the disaster occurrence time as “4”. In addition, the safety level determination unit 303 determines the safety level of the terminal whose location information does not change for 72 hours from the disaster occurrence time as “5”. Thus, the safety level is determined for each terminal according to the elapsed time from the disaster occurrence time and the presence / absence of movement of the terminal. Therefore, as shown in the “safety state” in FIG. 6, the higher the safety level, the more dangerous the user of the terminal.

  For example, in FIG. 9, the location information of the terminal with the telephone number “09011113333” has changed within 72 hours from the disaster occurrence time. Therefore, the safety level determination unit 303 determines the safety level of the terminal having the telephone number “09011113333” as “2”. Further, the position information of the terminal having the telephone number “08022224444” has not changed within 48 hours and 72 hours from the disaster occurrence time. Therefore, the safety level determination unit 303 determines the safety level of the terminal having the telephone number “08022224444” as “4”. Further, the location information of the terminal having the telephone number “08043345115” has not changed for 72 hours from the disaster occurrence time. Therefore, the safety level determination unit 303 determines the safety level of the terminal having the telephone number “08043345115” as “5”. Similarly, the safety level determination unit 303 determines the safety level of each terminal of the telephone numbers “09077779999”, “08022334455”, “09091916666”, and “09012125555”.

  On the other hand, for a terminal for which a safety level already exists before the determination of the safety level, the safety level determination unit 303 uses the existing safety level as it is, regardless of the update date and time and location information.

  For example, when the safety level is determined according to the elapsed time from the disaster occurrence time and whether or not the terminal has moved, the safety level of the terminal with the telephone number “08066668888” is “4” as shown in FIG. The safety level of the terminal with the telephone number “08066993388” is “5”. However, as described above, the safety levels “3” and “2” of the terminals with the telephone numbers “08066668888” and “08066993388” already exist before the safety level is determined. Therefore, the safety level determination unit 303 determines the safety level of the terminal with the telephone number “08066668888” as “3”, and determines the safety level of the terminal with the telephone number “08066993388” as “2”.

  Next, the safety level determination unit 303 determines the “rescue priority” of the user of each terminal. The rescue priority order is determined based on the “safety level” and the “remaining battery level”.

  Specifically, the safety level determination unit 303 assigns rescue priorities to the terminals in the order of safety level “4” → “3” → “2” → “1” → “5”. In addition, for a plurality of terminals having the same safety level, the safety level determination unit 303 increases the rescue priority of the user of the terminal having a smaller remaining battery level. As a result, the rescue priorities of the users of the terminals are as shown in FIG. 9, for example. That is, the rescue priority of the user of the terminal with the telephone number “08022334455” is the highest, and the rescue priority of the user of the terminal with the telephone number “08043345115” is the lowest.

  The safety level determination unit 303 updates the safety information stored in the safety information storage unit 306 by assigning the safety level and rescue priority determined for each terminal in this way to the safety information.

  The control unit 302 refers to the safety information storage unit 306 and generates a display screen on the display unit 304 based on the safety information updated by the safety level determination unit 303. The display unit 304 displays the display screen generated by the control unit 302 under display control of the control unit 302. 10 and 11 are diagrams illustrating an example of a screen display of the safety information server according to the embodiment.

  Based on the safety information shown in FIG. 9, the control unit 302 displays a telephone number and a safety level in association with each other on the map specified by the position information, as shown in FIG. 10, for example. Is generated.

  In addition, the control unit 302, based on the safety information shown in FIG. 9, for example, as shown in FIG. 11, for each telephone number on a map specified by a plurality of position information that changes with the passage of time. A display screen that displays the safety levels at a plurality of positions is generated.

  In the above description, the case where the phone number of the terminal is used as a unique identifier of the terminal is exemplified. However, the unique identifier of the terminal is not limited to the telephone number of the terminal. The unique identifier of the terminal may be anything that can uniquely identify the terminal. For example, the e-mail address of the terminal may be used as a unique identifier of the terminal.

  In the above description, the case where the “rescue priority” is determined is illustrated. However, the safety level determination unit 303 may determine the safety level while not determining the rescue priority. If the rescue priority order is not determined by the safety level determination unit 303, the user of the safety information server 30 may determine the rescue priority order from the safety level. Further, when the safety priority determination unit 303 does not determine the rescue priority, the safety information may not include the “battery remaining amount”.

  Further, the control unit 302 of the safety information server 30 may transmit the generated display screen to the terminal 10 using the communication unit 301 in response to a request from the terminal 10.

  As described above, according to the present embodiment, in the safety information server 30, the communication unit 301 receives the local terminal safety information regarding the first terminal and the peripheral terminal safety information regarding the second terminal from the first terminal. . The safety level determination unit 303 determines a safety level indicating the safety status of each user of the first terminal and the second terminal based on the own terminal safety information and the peripheral terminal safety information. Thereby, since it is possible to determine the safety status of each victim, it is possible to support rescue activities in consideration of the status of each victim.

  Each safety information includes an identifier unique to each terminal, an update date and time of each safety information, and position information of each terminal. The safety level determination unit 303 determines the safety level based on the update date and time and the position information. Thereby, a safety level can be determined correctly.

  Each safety information further includes the remaining battery level of each terminal. The safety level determination unit 303 determines the rescue priority order of the user of each terminal based on the safety level and the remaining battery level. Thereby, it becomes possible to give priority to rescue operations from victims in a more dangerous state.

  Further, the display unit 304 displays a unique identifier of each terminal and a safety level in association with the position on the map specified by the position information. Thereby, even when many disaster victims generate | occur | produce, it becomes possible to grasp | ascertain the exact position and safety state of those disaster victims at a glance.

  In addition, the display unit 304 displays the safety levels in a plurality of positions on the map specified by the plurality of pieces of position information that change with time for each unique identifier of each terminal. Thereby, it becomes possible to grasp at a glance the state of safety that changes over time for each victim.

  As described above, according to the present embodiment, in the terminal 10, the peripheral terminal communication unit 102 receives the peripheral terminal safety information from the peripheral terminal. The own terminal information storage unit 113 stores a plurality of own terminal safety information from the latest one in time series. The peripheral terminal information storage unit 114 stores the latest one peripheral terminal safety information for each peripheral terminal. The base station communication unit 103 transmits the safety information stored in the storage unit 112 to the base station. Thereby, safety information of peripheral terminals located outside the communication area of the base station can be collected in the safety information server 30. In addition, by limiting the number of stored safety information, it is possible to reduce the storage capacity necessary for storing the safety information and to transmit the safety information to the base station in a short time. In addition, the latest safety information can be transmitted to the base station.

  Further, the information updating unit 109 updates the own terminal safety information at a predetermined time interval. Thereby, safety information can always be kept up-to-date.

[Other embodiments]
<Terminal hardware configuration>
The terminal 10 can be realized by the following hardware configuration. FIG. 12 is a diagram illustrating a hardware configuration example of the terminal.

  As illustrated in FIG. 12, the terminal 10 includes, as hardware components, an antenna 10a, an RF (Radio Frequency) circuit 10b, a DSP (Digital Signal Processor) 10c, a speaker 10d, a microphone 10e, and a touch panel 10f. A display 10g such as an LCD (Liquid Crystal Display), a CPU (Central Processing Unit) 10h, a memory 10i, and a camera 10j. The memory 10i is composed of, for example, RAM such as SDRAM, ROM, and flash memory.

  The antenna 101 corresponds to the antenna 10a. The peripheral terminal communication unit 102, the base station communication unit 103, and the emergency signal receiving unit 104 are realized by the RF circuit 10b. The mode setting unit 105, the control unit 106, the information update unit 109, the position information acquisition unit 110, and the battery remaining amount acquisition unit 111 are realized by an integrated circuit such as the CPU 10h. The display unit 107 is realized by the display 10g. The operation unit 108 is realized by the touch panel 10f. The storage unit 112 is realized by the memory 10i.

<Hardware configuration of safety information server>
The safety information server 30 can be realized by the following hardware configuration. FIG. 13 is a diagram illustrating a hardware configuration example of the safety information server.

  As shown in FIG. 13, the safety information server 30 includes a communication interface 30a, a CPU 30b, a keyboard 30c, a display 30d, and a memory 30e as hardware components. The memory 30e is composed of, for example, RAM such as SDRAM, ROM, and flash memory.

  The communication unit 301 is realized by the communication interface 30a. The control unit 302 and the safety level determination unit 303 are realized by an integrated circuit such as the CPU 30b. The display unit 304 is realized by the display 30d. The operation unit 305 is realized by the keyboard 30c. The safety information storage unit 306 is realized by the memory 30e.

<Program>
The various processes described above can also be realized by causing a CPU to execute a program prepared in advance. That is, a program corresponding to each process executed by the mode setting unit 105, the control unit 106, the information update unit 109, the position information acquisition unit 110, and the battery remaining amount acquisition unit 111 is stored in the memory 10i in advance. Each program may be read out to the CPU 10h and function as a process. Further, a program corresponding to each process executed by the control unit 302 and the safety level determination unit 303 may be stored in the memory 30e in advance, and each program may be read out to the CPU 30b and function as a process. Each program does not necessarily have to be stored in advance in the memory. That is, for example, on a portable recording medium such as a flexible disk (FD), a CD-ROM, an MO disk, a DVD disk, a magneto-optical disk, an IC card, and a memory card that can be connected to the terminal 10, the safety information server 30, or a computer. Each program may be recorded in advance, and each program may be read out to the terminal 10, the safety information server 30, or the computer to function as a process. Further, for example, each program is stored in advance in the terminal 10, the safety information server 30 or a computer or server connected to the computer by wireless or wired via the Internet, LAN, WAN, etc., and each program is stored in the terminal 10, safety information server. 30 or read out to a computer to function as a process.

  The following supplementary notes are further disclosed with respect to the embodiments including the above examples.

(Supplementary Note 1) A communication unit that receives first safety information related to the first communication terminal and second safety information related to the second communication terminal from the first communication terminal;
A determination unit for determining a safety level indicating a safety state of each user of the first communication terminal and the second communication terminal based on the first safety information and the second safety information;
A server comprising:

(Supplementary Note 2) The first safety information and the second safety information include an identifier unique to each of the first communication terminal and the second communication terminal, the first safety information, and the second safety information. Each update date and time of safety information, and location information of each of the first communication terminal and the second communication terminal,
The determination unit determines the safety level based on the update date and time and the location information.
The server according to attachment 1.

(Supplementary Note 3) The first safety information and the second safety information further include respective remaining battery levels of the first communication terminal and the second communication terminal,
The determination unit determines the rescue priority of each user of the first communication terminal and the second communication terminal based on the safety level and the remaining battery level.
The server according to attachment 2.

(Additional remark 4) The display part which matches and displays the said specific identifier and the said safety level on the position on the map specified by the said positional information is further comprised,
The server according to attachment 2.

(Additional remark 5) It further has the display part which displays the said safety level continuously in the several position on the map specified by several said positional information which changes with progress of time for every said unique identifier. ,
The server according to attachment 2.

(Appendix 6) a first communication unit that receives first safety information related to the other communication terminal from another communication terminal;
A storage unit for storing a plurality of second safety information related to the own terminal in time series from the latest one, while storing the latest one first safety information for each of the other communication terminals,
A second communication unit for transmitting the stored safety information to the base station;
A communication terminal comprising:

(Additional remark 7) The update part which updates the said 2nd safety information at a predetermined time interval further comprises,
The communication terminal according to attachment 6.

(Supplementary Note 8) From the first communication terminal, first safety information related to the first communication terminal and second safety information related to the second communication terminal are received,
Based on the first safety information and the second safety information, a safety level indicating a safety state of each user of the first communication terminal and the second communication terminal is determined.
Safety information processing method.

(Additional remark 9) Based on the safety information regarding a communication terminal, the safety level which shows the state of the safety of the user of the said communication terminal is determined,
Giving the determined safety level to the safety information,
A computer-readable recording medium for storing a safety information processing program for causing a computer to execute processing.

(Additional remark 10) Memory which memorize | stores the safety information regarding a communication terminal,
A processor for determining a safety level indicating a safety status of a user of the communication terminal based on the safety information;
A server comprising:

(Supplementary Note 11) Among the first safety information regarding the other communication terminal received from the other communication terminal, the latest one first safety information is stored for each of the other communication terminals. A memory for storing a plurality of second safety information about the terminal in chronological order from the latest one;
A processor for obtaining the first safety information and the second safety information stored in the memory;
A communication terminal comprising:

10 terminal 101 antenna 102 peripheral terminal communication unit 103 base station communication unit 104 emergency signal reception unit 105 mode setting unit 106 control unit 107 display unit 108 operation unit 109 information update unit 110 position information acquisition unit 111 battery remaining amount acquisition unit 112 storage unit 113 Self-terminal information storage unit 114 Peripheral terminal information storage unit 30 Safety information server 301 Communication unit 302 Control unit 303 Safety level determination unit 304 Display unit 305 Operation unit 306 Safety information storage unit

Claims (7)

A communication unit that receives first safety information related to the first communication terminal and second safety information related to the second communication terminal from the first communication terminal;
A determination unit for determining a safety level indicating a safety state of each user of the first communication terminal and the second communication terminal based on the first safety information and the second safety information; Comprising
The first safety information and the second safety information are respectively an identifier unique to each of the first communication terminal and the second communication terminal, each of the first safety information and the second safety information. Update date and time, position information of each of the first communication terminal and the second communication terminal, and the remaining battery level of each of the first communication terminal and the second communication terminal,
The determining unit determines the safety level based on the update date and time and the location information, and determines each of the first communication terminal and the second communication terminal based on the safety level and the remaining battery level. Determine rescue priorities for users,
server. A display unit that displays the unique identifier and the safety level in association with the position on the map specified by the position information;
The server according to claim 1. For each of the unique identifiers, further comprising a display unit that displays the safety level continuously at a plurality of positions on a map specified by a plurality of the position information that changes with time.
The server according to claim 1. A first communication unit that receives first safety information related to the other communication terminal from another communication terminal;
A second communication unit that transmits the first safety information and the second safety information related to the terminal to the server via a base station, and
The first safety information and the second safety information are an identifier unique to each of the other communication terminals and the own terminal, an update date and time of each of the first safety information and the second safety information, Including the position information of each of the other communication terminal and the own terminal, and the remaining battery level of each of the other communication terminal and the own terminal,
The server determines a safety level indicating a safety status of each user of the other communication terminal and the own terminal based on the update date and time and the location information, and determines the safety level and the remaining battery level. Based on the server, the rescue priority of each user of the other communication terminal and the own terminal is determined,
Communication terminal. An update unit for updating the second safety information at a predetermined time interval;
The communication terminal according to claim 4. Based on the first safety information and the second safety information, the first safety information about the first communication terminal and the second safety information about the second communication terminal are received from the first communication terminal. A safety information processing method in a server for determining a safety level indicating a safety state of each user of the first communication terminal and the second communication terminal,
The first safety information and the second safety information are respectively an identifier unique to each of the first communication terminal and the second communication terminal, each of the first safety information and the second safety information. Update date and time, position information of each of the first communication terminal and the second communication terminal, and the remaining battery level of each of the first communication terminal and the second communication terminal,
The server determines the safety level based on the update date and time and the location information, and determines each of the first communication terminal and the second communication terminal based on the safety level and the remaining battery level. Determine the rescue priority of users,
Safety information processing method. Based on the first safety information related to the first communication terminal and the second safety information related to the second communication terminal, the safety status of each user of the first communication terminal and the second communication terminal is determined. A safety information processing program for determining a safety level to be shown and causing a processor to execute a process of assigning the determined safety level to the safety information,
The first safety information and the second safety information are respectively an identifier unique to each of the first communication terminal and the second communication terminal, each of the first safety information and the second safety information. Update date and time, position information of each of the first communication terminal and the second communication terminal, and the remaining battery level of each of the first communication terminal and the second communication terminal,
The safety level is determined based on the update date and time and the location information, and each user of the first communication terminal and the second communication terminal is rescued based on the safety level and the remaining battery level. A safety information processing program for causing the processor to execute processing for determining priority.

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