JP2009303199A - Mobile communication system, communication terminal, and safety confirmation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To confirm the safety of also a victim owning a communication terminal that has not performed any calls after the occurrence of a disaster. <P>SOLUTION: In a first communication terminal 50A receiving disaster information, an operation recording section 52 records the operation of an own machine for transmitting the information to a network control unit 20 included in a safety confirmation system 10 as information on the operation of the first communication terminal 50A. The information on operation transmitted from the first communication terminal 50A is held by a safety information holding section 22, and notification safety information created by a notification safety information creation section 25 based on the safety information is transmitted to a second communication terminal 50B when a communication request to the first communication terminal 50A is received from the second one 50B, thus transmitting the notification safety information also to the second communication terminal 50B even if the owner of the first communication terminal 50A has not performed any calls after the occurrence of a disaster. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mobile communication system, a communication terminal constituting the mobile communication system, and a safety confirmation system.

  When a large-scale disaster such as an earthquake occurs, a third party such as a family member or acquaintance who cares about the safety of the disaster victim in the area where the disaster occurred calls the communication terminal owned by the disaster victim. There are many. However, depending on the disaster situation, the battery consumption situation of the communication terminal, etc., there are many cases where it is impossible to make a call with the victim, and there are many situations where it is not possible to confirm safety properly. In addition, there is a possibility that congestion will occur because the demand for safety confirmation by telephone communication is concentrated in a specific area where a disaster has occurred. For this reason, methods for more efficiently confirming the safety of victims are being studied.

  On the other hand, in patent document 1, the communication history after the disaster occurrence of the communication terminal in a disaster area is recorded, and the other communication terminal trying to make a call to the communication terminal A safety confirmation method by notifying a communication history of a communication terminal is disclosed.

JP 2007-166275 A

  However, in the safety confirmation method described in Patent Document 1, since there is no history of communication terminals that have never communicated after a disaster occurs, for example, a disaster victim who is in a situation where a call cannot be made There is a problem that safety cannot be confirmed.

  The present invention has been made in view of the above, and provides a mobile communication system, a communication terminal, and a safety confirmation system capable of confirming safety even for a disaster victim who owns a communication terminal that has not made a call after the occurrence of a disaster. For the purpose.

  In order to achieve the above object, a mobile communication system according to the present invention provides a communication terminal that communicates by connecting to a mobile communication network, and safety information of the first communication terminal at the time of a disaster, with the first communication terminal. A safety communication system that notifies a second communication terminal that has transmitted a communication request via a mobile communication network, wherein the first communication terminal relates to a disaster. The disaster information receiving means for receiving the disaster information, the operation recording means for recording the operation of the own apparatus, and the operation of the own machine recorded by the operation recording means based on the fact that the disaster information receiving means has received the disaster information. Terminal operation transmission means for transmitting information related to the safety confirmation system via the mobile communication network, and the safety confirmation system transmits information about the operation of the first communication terminal transmitted from the first communication terminal. The Terminal operation receiving means for receiving, safety information holding means for holding information on the operation of the first communication terminal received by the terminal operation receiving means as safety information of the first communication terminal, and a second communication terminal A communication request receiving means for receiving a communication request with the first communication terminal transmitted from the communication request receiving means, referring to the safety information held by the safety information holding means based on the communication request received by the communication request receiving means; Based on the safety information of the first communication terminal, the notification safety information creating means for creating the notification safety information for notifying the second communication terminal, the notification safety information created by the notification safety information creating means, the second Safety information notifying means for notifying the communication terminal of the communication terminal.

  In addition, a first communication terminal according to the present invention includes a communication terminal that communicates by connecting to a mobile communication network, and safety information of the first communication terminal at the time of a disaster, a communication request to the first communication terminal A safety confirmation system for notifying the second communication terminal that has transmitted the information via the mobile communication network, a first communication terminal in a mobile communication system including disaster information about disaster Based on the received disaster information by the disaster information receiving means, the operation recording means for recording the operation of the own machine, and the disaster information receiving means by the disaster information receiving means, the information on the operation of the own machine recorded by the operation recording means Terminal operation transmitting means for transmitting to the safety confirmation system via the mobile communication network.

  In addition, the safety confirmation system according to the present invention transmits the safety information transmitted by connecting to the mobile communication network from the first communication terminal in the event of a disaster, and the second communication request transmitted to the first communication terminal. A safety confirmation system for notifying a communication terminal of the first communication terminal via a mobile communication network, a terminal operation receiving means for receiving information relating to the operation of the first communication terminal transmitted from the first communication terminal; The information on the operation of the first communication terminal received by the terminal operation receiving means is transmitted from either the safety information holding means for holding the safety information of the first communication terminal or the second communication terminal. A communication request receiving means for receiving a communication request with the first communication terminal; and the safety information held by the safety information holding means based on the communication request received by the communication request receiving means, and the first communication terminal of Notification safety information creation means for creating notification safety information for notifying to the second communication terminal based on the rejection information, and notification safety information created by the notification safety information creation means, the second communication terminal communication terminal And safety information notifying means for notifying to.

  In the above-described mobile communication system, the first communication terminal that has received the disaster information, based on the fact that the disaster information has been received, information related to the operation of the first communication terminal recorded in the operation recording means is a safety confirmation. Sent to the system. In the safety confirmation system, information transmitted from the first communication terminal is retained as safety information, and when a communication request from the second communication terminal to the first communication terminal is transmitted, retained in the safety confirmation system. The notification safety information is created based on the safety information being sent, and is transmitted to the second communication terminal that has transmitted the communication request. As a result, the notification safety information created based on the information related to the operation of the first communication terminal is transmitted to the second communication terminal that has transmitted the communication request, so that the owner of the first communication terminal Even if a telephone call has never been made after the occurrence of a disaster, notification safety information can be transmitted to the second communication terminal that has made a communication request.

  In the first communication terminal included in the mobile communication system, the operation recording unit may record the movement as the operation of the own device when the own device moves.

  As described above, the owner of the first communication terminal can record the movement of the device as an operation and transmit the information to the safety confirmation system as information related to the operation of the first communication terminal. Even if no operation is performed, the safety information of the first communication terminal is held in the safety confirmation system, so that information related to the operation of the first communication terminal can be collected more widely as safety information during a disaster. In addition, even when there is a communication request to the first communication terminal, the notification safety information can be appropriately provided.

  Further, in the first communication terminal included in the mobile communication system, the operation recording means may be configured to record its own operation when the disaster information receiving means receives the disaster information.

  In this case, since the operation recording unit starts recording the operation of the own device upon receipt of the disaster information, the operation recording unit can efficiently record information regarding the operation of the first communication terminal.

  In addition, the safety confirmation system includes a terminal connection unit configured to connect to the first communication terminal based on the communication request with the first communication terminal transmitted from the second communication terminal received by the communication request receiving unit. The safety information notifying unit may notify the second terminal of the notification safety information when the terminal connection unit cannot connect to the first communication terminal.

  In this case, when the connection to the first communication terminal can be established in the terminal connection means, the communication can be performed between the first communication terminal and the second communication terminal, and the connection cannot be established. The notification safety information is notified to the second communication terminal. Therefore, in response to a communication request transmitted from the second communication terminal, the notification safety information is more appropriately sent to the second communication terminal according to the status of the mobile communication network, the status of the communication terminal and its owner, and the like. You can be notified.

  Furthermore, the first communication terminal further includes a message message transmitting means for transmitting a message message to the safety confirmation system. The safety confirmation system receives the message message transmitted from the first communication terminal, and receives the other communication terminal. A message message delivery means for sending a message message to the other terminal in response to a message message delivery request from the mobile station, and the safety information holding means is information relating to the operation of the first communication terminal received by the terminal operation receiving means. And the message message received by the message message delivery means may be held as the safety information of the first communication terminal.

  By setting the mobile communication system as described above, a message message actively transmitted from the first communication terminal is held as safety information. Therefore, since the message message from the owner of the first communication terminal can be included as the notification safety information transmitted to the second communication terminal, more accurate notification safety information is transmitted to the second communication terminal. can do.

  According to the present invention, since the information on the operation of the communication terminal is used as the safety information, the mobile communication system and the communication that can confirm the safety even for the victim who owns the communication terminal that is not making a call after the disaster occurs A terminal and a safety confirmation system are provided.

It is a figure which shows the structure of the mobile communication system which concerns on embodiment of this invention, and those connection relations. It is a figure which shows the hardware constitutions of the communication terminal in embodiment of this invention. It is a figure which shows the hardware constitutions of the network control apparatus in the embodiment of this invention, a disaster message board system, and an exchange. It is a sequence diagram explaining the process until the safety information of a communication terminal is hold | maintained in a safety confirmation system among the safety confirmation processes by the mobile communication system which concerns on 1st Embodiment. It is a figure which shows an example of the message message registration screen in a communication terminal. It is a figure which shows a response | compatibility with the message message and identification number in a disaster message board system. It is a sequence diagram explaining an example of the process at the time of the communication request with respect to 50 A of communication terminals transmitted from the communication terminal 50B among the safety confirmation processes by the mobile communication system which concerns on 1st Embodiment. It is a figure which shows the safety information currently hold | maintained in the safety information holding part. It is a figure which shows a response | compatibility of the notification safety information identification number and the notification safety information notified as audio | voice guidance. It is a figure which shows the selection method of the notification safety information identification number based on the presence or absence of message message registration and the presence or absence of operation information. It is a sequence diagram explaining the other example of the process at the time of the communication request with respect to 50 A of communication terminals transmitted from the communication terminal 50B among the safety confirmation processes by the mobile communication system which concerns on 1st Embodiment. It is a sequence diagram (first half) explaining the safety confirmation process by the mobile communication system which concerns on 2nd Embodiment. It is a sequence diagram (latter half) explaining the safety confirmation process by the mobile communication system which concerns on 2nd Embodiment. It is a sequence diagram explaining the safety confirmation process by the mobile communication system which concerns on 3rd Embodiment. It is a sequence diagram explaining the safety confirmation process by the mobile communication system which concerns on 4th Embodiment. It is a sequence diagram explaining the modification of the safety confirmation process by the mobile communication system which concerns on 4th Embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
FIG. 1 is a diagram showing a configuration of a mobile communication system 100 according to the first embodiment of the present invention and their connection relationship. The mobile communication system 100 includes a safety confirmation system 10 and an exchange 40 (40A, 40B) included in the mobile communication network N, and a plurality of communication terminals 50A, 50B connected to the mobile communication network N and performing mobile communication. , Including. The safety confirmation system 10 includes a network control device (Service Control Point: SCP) 20 and a disaster message board system 30. The mobile communication network N includes the exchange 40 and the network control device 20. In the present embodiment, a case will be described in which the communication terminals 50A and 50B connect to the mobile communication network N using a 3G (3rd generation) system to perform mobile communication.

  The safety confirmation system 10 is connected to the plurality of communication terminals 50A and 50B via the exchanges 40A and 40B, and transmits the safety information of the communication terminal 50A to the communication terminal 50B that has transmitted a communication request with the communication terminal 50A. System. Here, the communication request transmitted from the communication terminal 50B requests the mobile communication network N to establish a call connection in order to perform voice communication with the communication terminal 50A. It is transmitted when the owner operates the communication terminal 50B. Note that the connection established by the communication request may not be for voice communication, and may be for data communication, for example. On the other hand, the safety information of the communication terminal 50A transmitted from the safety confirmation system 10 to the communication terminal 50B indicates what state the victim and the communication terminal 50A owned by the victim are in a disaster. Information. In other words, the safety confirmation system 10 is a system for notifying the owner of the communication terminal 50B, which has transmitted a communication request because of concern about the safety of the victim, instead of the communication terminal 50A.

  The network control device 20 included in the safety confirmation system 10 is a device that performs routing (creation of a communication path) when establishing communication between the communication terminal 50A and the communication terminal 50B. Further, the disaster message board system 30 included in the safety confirmation system 10 holds a message message in a text sentence format transmitted from the communication terminal 50A at the time of a disaster, and communicates with other communication terminals 50 (for example, the safety of the communication terminal 50A) (for example, When there is a message message delivery request from the communication terminal 50B), the device has a function of delivering the message message. The above function is realized by, for example, a bulletin board system via a communication network. In addition, the message message transmitted from the communication terminal 50A is used when the owner of the communication terminal 50A wants to convey his / her safety to an unspecified number of other parties or when communication with other communication terminals 50 is impossible. It is done. Specific processing in the disaster message board system 30 will be described later. The network control device 20 has a function as an HLR (home location register) in the 3G system, and stores contract information of the owner of the communication terminal 50 (50A, 50B).

  The exchanges 40A and 40B establish wireless communication between the communication terminals 50A and 50B, and establish wireless communication between the communication terminals 50A and 50B and the network control device 20 and the disaster message board system 30 included in the safety confirmation system 10. Device. In FIG. 1, the safety confirmation system 10 is configured to include the network control device 20 and the disaster message board system 30, but the functions of these devices are included in one device. Also good. The exchanges 40A and 40B are realized as MSC (Mobile Switching Center) / VLR (Visitor Location Register) in the 3G system.

  In FIG. 1, two exchanges 40A and 40B are connected to the safety confirmation system 10 (the network control device 20 and the disaster message board system 30), and the communication terminal 50A is connected to the exchange 40B. The communication terminals 50 </ b> B are connected to each other. Usually, a plurality of exchanges 40 are connected to the safety confirmation system 10, and a plurality of communication terminals 50 are connected to each exchange 40. In FIG. 1, the exchanges 40A and 40B and the communication terminals 50A and 50B are illustrated as an example in which there are a plurality of exchanges 40 and communication terminals 50. In the present embodiment, the communication terminal 50A corresponds to a first communication terminal owned by a disaster victim during a disaster, and the communication terminal 50B corresponds to a second communication terminal that transmits a communication request with the first communication terminal. . Here, although the communication terminals 50A and 50b are respectively referred to as a first communication terminal and a second communication terminal for the sake of convenience, any communication terminal 50 can be the first or second communication terminal.

  In the mobile communication system 10 described above, between the network control device 20 and the disaster message board system 30 constituting the safety confirmation system 10, between the network control device 20 and the exchange 40, and between the exchange 40A and the exchange 40B, respectively. Connected via a wired network. Further, information is exchanged by wireless communication between the exchange 40A and the communication terminal 50A and between the exchange 40B and the communication terminal 50B.

  Next, details of each device included in the mobile communication system 100 will be described. In the following description, “safety information” refers to information indicating the status of the communication terminal 50A that is held in the safety confirmation system 10 by being transmitted from the communication terminal 50A to the safety confirmation system 10. Say. Information indicating the status of the communication terminal 50A transmitted from the safety confirmation system 10 to the communication terminal 50B is referred to as “notification safety information”. The notification safety information is created as information more accurately indicating the safety status of the communication terminal 50A based on a plurality of safety information transmitted from the communication terminal 50A to the safety confirmation system 10.

  First, the communication terminal 50A will be described. The communication terminal 50A is a device that is used by a user (owner of the communication terminal 50A) to connect to the mobile communication network N and perform wireless communication. Specifically, for example, a communication function such as a mobile phone It implement | achieves as an apparatus which has. As illustrated in FIG. 1, the communication terminal 50 </ b> A includes a disaster information reception unit 51, an operation recording unit 52, an operation information transmission unit 53, and a message message transmission unit 54.

  The disaster information receiving unit 51 functions as a disaster information receiving unit that receives information related to this disaster when a disaster occurs. The disaster information is information distributed from a distribution server or the like to a communication terminal located in an area where damage is caused by a disaster when a disaster such as an earthquake or a typhoon occurs, for example, “4 This corresponds to information such as an earthquake early warning that indicates that an earthquake with a seismic intensity of 6 occurred at 10:25 on the 1st of January on the 1st of October. When the disaster information receiving unit 51 receives the disaster information, the disaster information is notified to the owner of the communication terminal 50A, and the operation recording unit 52 is notified that the disaster information has been received.

  The operation recording unit 52 functions as an operation recording unit that records the operation of the own device when the disaster information receiving unit 51 receives the disaster information. Specifically, the operation recording unit 52 includes, for example, an acceleration sensor, a GPS function, a terminal operation recording unit such as a button press, and the like, and when the disaster information receiving unit 51 is notified that disaster information has been received. Is started for a certain period of time (for example, 5 minutes), and in addition to the movement of the own device, the operation of the communication terminal 50A by the owner (button press etc.) is recorded as information (operation information) regarding the operation of the communication terminal 50A . For example, in the case of information acquired by an acceleration sensor, the operation information of the communication terminal 50A is recorded by associating the presence / absence of movement detection (acceleration detection) with the time when movement is detected. Is done. In the case of information acquired by the terminal operation recording means, the pressed button, the pressed time, and the like are recorded in association with each other. The motion information recorded in the motion recording unit 52 is sent to the motion information transmission unit 53.

  The operation information transmission unit 53 functions as a terminal operation transmission unit that transmits the operation information of the communication terminal 50A recorded in the operation recording unit 52 to the safety confirmation system 10 via the mobile communication network N. Specifically, the information is transmitted from the operation information transmission unit 53 to the network control device 20 included in the safety confirmation system 10.

  The message message transmitting unit 54 serves as a message message transmitting means for transmitting the message message to the disaster message board system 30 in order to register the disaster situation of the owner of the communication terminal 50A as a message message in the text message in the disaster message board system 30. Function. The creation of the message message and the transmission instruction to the disaster message board system 30 are performed by the operation of the communication terminal 50A by the owner of the communication terminal 50A.

  As illustrated in FIG. 2, the communication terminal 50 includes a CPU 501, a RAM 502, a ROM 503, an operation unit 504, a wireless communication unit 505, a display 506, and an antenna 507. By operating these components, the above-described functions of the communication terminal 50A are exhibited.

  Next, the network control device 20 included in the safety confirmation system 10 will be described. The network control device 20 is a device that performs routing when establishing communication between the communication terminal 50A and the communication terminal 50B. Further, the network control apparatus 20 holds the safety information transmitted from the communication terminal 50A, and when the communication request with the communication terminal 50A is transmitted from the communication terminal 50B, the notification safety information of the communication terminal 50A is transmitted to the communication terminal 50B. The function to notify is provided.

  As illustrated in FIG. 1, the network control device 20 includes a terminal operation receiving unit 21, a safety information holding unit 22, a communication request receiving unit 23, a terminal connection unit 24, a notification safety information creation unit 25, and safety information. And a notification unit 26.

  The terminal operation receiving unit 21 functions as a terminal operation receiving unit that receives information related to the operation of the communication terminal 50A transmitted from the communication terminal 50A via the exchange 40A. The operation information of the communication terminal 50 </ b> A received by the terminal operation receiving unit 21 is sent to the safety information holding unit 22.

  The safety information holding unit 22 uses the operation information of the communication terminal 50A sent from the terminal operation receiving unit 21 and the presence / absence of message message registration of the communication terminal 50A sent from the disaster message board system 30 as safety information about the communication terminal 50A. It functions as a safety information holding means for holding. The safety information holding unit 22 holds safety information for each communication terminal, and is used when a notification safety information creation unit 25 described later creates notification safety information.

  The communication request receiving unit 23 functions as a communication request receiving unit that receives a communication request with the communication terminal 50A transmitted from the communication terminal 50B via the exchange 40B. The communication request received by the communication request reception unit 23 is sent to the terminal connection unit 24 and the notification safety information creation unit 25.

  The terminal connection unit 24 functions as a terminal connection unit that performs a connection between the communication terminal 50B and the communication terminal 50A based on the communication request with the communication terminal 50A received by the communication terminal 50B received by the communication request reception unit 23. . Specifically, the exchange 40A connected to the network control device 20 is caused to check the communication status of the communication terminal 50A, and routing (formation of communication path) is performed based on the response, and the communication terminal 50B is connected. The routing information is notified to the exchange 40B, and the safety information notifying unit 26 is notified that the routing is normal. Also, when it is confirmed from the response result of the exchange 40A that the connection with the communication terminal 50A cannot be established, the safety information notification unit 26 is notified of the result.

  The notification safety information creation unit 25, based on the communication request with the communication terminal 50A by the communication terminal 50B received by the communication request reception unit 23, the safety information (notification safety information) of the communication terminal 50A for notifying the communication terminal 50B. ) To function as a notification safety information creation means. The notification safety information creation unit 25 refers to the safety information of the communication terminal 50A held in the safety information holding unit 22, selects information to be preferentially notified to the communication terminal 50B, and sets the notification safety information. create. Specific processing for creating the notification safety information will be described later. The notification safety information created in the notification safety information creation unit 25 is sent to the safety information notification unit 26.

  The safety information notification unit 26 functions as a safety information notification unit that transmits the notification safety information created by the notification safety information creation unit 25 to the communication terminal 50B. Specifically, when the connection result with the communication terminal 50A notified from the terminal connection unit 24 is not connectable, the exchange 40B is notified so as to notify the communication terminal 50B of the notification safety information of the communication terminal 50A. To give instructions.

  Next, the disaster message board system 30 included in the safety confirmation system 10 will be described. When a disaster occurs, the disaster message board system 30 allows a disaster victim (for example, the owner of the communication terminal 50A) to register his / her disaster situation as a message message together with information (for example, a telephone number) of the communication terminal 50A. It has a function of providing a safety situation by distributing a message message to another communication terminal (for example, communication terminal 50B) that has accessed the message board system 30. The disaster message board system 30 includes a message message registration unit 31 and a message message notification unit 32.

  The message message registration unit 31 receives and holds the message message transmitted from the communication terminal 50A via the exchange 40A, and responds to the message message distribution request from the other communication terminal 50 in response to the message of the communication terminal 50A. It functions as a message message delivery means for transmitting a message. Furthermore, the message message registration unit 31 transmits information related to the message message transmitted from the communication terminal 50 </ b> A (in this embodiment, an identification number corresponding to the content of the message message) to the network control device 20. Specific processing will be described later.

  The message message notification unit 32 registers the communication terminal 50A held by the message message registration unit 31 when the communication terminal 50B requests the network control device 20 to communicate with the communication terminal 50A via the exchange 40B. It has a function as safety information notification means for converting the message message into voice and notifying the communication terminal 50B via the exchange 40B as notification safety information. Voice conversion of a message message can be performed by a known technique used for voice conversion of a general text sentence.

  The exchange 40 (exchanges 40A and 40B) communicates with a plurality of communication terminals 50 connected to the exchange 40 in accordance with an instruction from the network control device 20, and connects with other communication terminals 50 or transfers data with a server or the like. The function to perform. In addition, communication between communication terminals 50 connected to different exchanges 40 is performed by communicating with other exchanges 40 (for example, between exchanges 40A and 40B) in accordance with instructions from network control device 20. Has the function to perform.

  As shown in FIG. 3, the network control device 20, the disaster message board system 30, and the exchange 40 described above include a CPU (Central Processing Unit) 101, a main storage device RAM (Random Access Memory) 102, and a ROM (Read Only). Memory) 103, a communication module 104 for performing communication, and a computer including hardware such as an auxiliary storage device 105 such as a hard disk. And when these components operate, each function of each device 20,30,40 mentioned above is exhibited.

  Subsequently, holding and notification of safety information by the mobile communication system 100 according to the present embodiment will be described in detail with reference to the sequence diagrams of FIGS. 4, 7, and 11.

  First, using the sequence diagram of FIG. 4, the communication terminal 50A receives information (operations) via the exchange 40A for the safety confirmation system 10 (the network control device 20 and the disaster message board system 30) constituting the mobile communication system 100. The process until the safety information is held in the safety confirmation system 10 by transmitting the information and message) will be described.

  First, the communication terminal 50A located in the disaster area receives the disaster information transmitted from the distribution server when the disaster occurs by the disaster information receiving unit 51 (S100). The disaster information receiving unit 51 notifies the owner of the communication terminal 50A, for example, by displaying the received disaster information on the display 506, and notifies the operation recording unit 52 that the disaster information has been received.

  Next, when the communication terminal 50A notifies the reception of the disaster information, the operation recording unit 52 starts recording the operation of the own device (S101), and ends after a certain time (for example, 5 minutes) has passed. (S102). The operation recording unit 52 is activated for a certain period of time from the time when the disaster information receiving unit 51 is notified that the disaster information has been received. Etc.) are recorded. When the operation recording unit 52 records the operation of the device as the operation information, the operation information is transferred from the operation recording unit 52 to the operation information transmitting unit 53. Here, for example, in the case where a means for detecting the movement of the own device such as an acceleration sensor is provided as operation information, even if the owner does not operate the communication terminal 50A at all, the movement of the owner is accompanied. Since movement of the communication terminal 50A can also be recorded as operation information, more detailed operation information can be acquired for the communication terminal 50A. As another means for detecting the movement of the own device, for example, position information using GPS can be used.

  The operation information recorded in the communication terminal 50A is transmitted from the operation information transmission unit 53 to the network control device 20 via the exchange 40A (S103a, S103b). Here, as a method of transmitting the operation information to the network control device 20, for example, there is a method of automatically transmitting the operation information to the network control device 20 after recording the operation information for a certain period of time. As another method for transmitting the operation information to the network control device 20, there is a method for transmitting the operation information attached to the location registration request signal of the communication terminal 50A. In this case, since operation information is transmitted using transmission / reception of information related to position registration that is normally performed, there is an effect that new communication associated with transmission of operation information of the communication terminal 50A does not occur.

  The operation information of the communication terminal 50 </ b> A transmitted to the network control device 20 is received by the terminal operation receiving unit 21 and sent to the safety information holding unit 22. The safety information holding unit 22 associates information (for example, a telephone number) specifying the communication terminal 50A that is the transmission source of the operation information with the operation information, and holds the information as safety information of the communication terminal 50A (S104). With the above processing, the processing for holding the operation information of the communication terminal 50A as safety information is completed.

  Note that when the communication terminal 50A does not operate or move itself for a certain period of time and no operation information is recorded, the terminal operation information is not transmitted (S103) and held (S104). Alternatively, the operation recording unit 52 may operate for a certain period of time, but may transmit information to the network control device 20 that operation information has not been recorded.

  Next, the case where the message message registration to the disaster message board system 30 is further performed from the communication terminal 50A will be described. The message message registration to the disaster message board system 30 is performed by the owner of the communication terminal 50A operating the communication terminal 50A, and the message message for the owner of the other communication terminal 50 who cares about the safety of the owner of the communication terminal 50A. Is registered.

  First, the owner of the communication terminal 50A creates a registration message on the disaster message board using the communication terminal 50A (S110). The message message is created by operating a screen as shown in FIG. In the message message registration screen shown in FIG. 5, for example, as shown under “Status”, “It is safe.” “There is damage.” “I am at home.” “I am in a refuge.” In addition to registering by selecting from the four standard sentences, it is also possible to register free sentences like “Comments”. In this way, the message message created in the message message transmission unit 54 is transmitted from the message message transmission unit 54 to the disaster message board system 30 via the exchange 40A (S111a, S111b).

  In the disaster message board system 30, the message message received by the message message registration unit 31 is held in the message message registration unit 31 in association with the telephone number of the communication terminal 50A (S112). Further, when an inquiry regarding the message message of the communication terminal 50A is received by designating the telephone number of the communication terminal 50A, the message message of the communication terminal 50A is distributed to the communication terminal 50 that made the inquiry (S113). ) To function as a disaster message board. Also, message message registration information is transmitted to the network control device 20 by the communication terminal 50A (S114). Here, the message message registration unit 31 holds in advance an identification number table corresponding to each content of the message message as shown in FIG. 6, and stores the telephone number of the communication terminal 50A and the message message registered by the communication terminal 50A. The corresponding identification number is transmitted to the network control device 20. For example, when the communication terminal 50A registers a message message “Safe”, the network controller 20 is notified of the identification number “01”. When the communication terminal 50A registers a free sentence in the message message registration unit 31, the network control device 20 is notified of the identification number “99”. As described above, the telephone number of the communication terminal 50A and the identification number indicating the type of the message message are sent from the disaster message board system 30 to the network control device 20, so that the network control device 20 receives them and holds the safety information. Held in the unit 22 (S115)

  Thus, the process related to the holding of the safety information of the communication terminal 50A in the safety confirmation system 10 is completed. In the communication terminal 50A, when the owner does not perform the message message registration operation to the disaster message board system 30, the above processing (S110 to S115) is not performed.

  Next, an example of processing when a communication request with the communication terminal 50A is transmitted from the communication terminal 50B will be described using the sequence diagram of FIG. As a premise for performing the processing of the sequence diagram of FIG. 7, operation information is transmitted from the communication terminal 50A to the network control device 20 in advance and held as safety information (S100 to S104), and the disaster message board system 30 Message messages are registered (S110 to S115). Further, it is assumed that communication terminal 50A has registered a free sentence as a message message.

  The communication terminal 50A is in a state where it cannot respond due to network congestion, battery exhaustion, or the owner not being able to answer the phone (S200).

  On the other hand, the communication terminal 50B transmits a communication request with the communication terminal 50A (S201). The communication request with the communication terminal 50A transmitted from the communication terminal 50B is transmitted to the network control device 20 through the exchange 40B (S202a) (S202b). In the network control device 20, when the communication request receiving unit 23 receives a communication request with the communication terminal 50A (S203), the communication request receiving unit 23 notifies the terminal connection unit 24 and performs routing between the communication terminal 50B and the communication terminal 50A. Establish). In accordance with the instruction, the terminal connection unit 24 requests the exchange 40A to which the communication terminal 50A is connected to issue routing information (S204).

  The exchange 40A confirms (paging) the connection status of the communication terminal 50A to the mobile communication network N in accordance with the routing payout request from the network control device 20 (S205). However, the communication terminal 50A is in a response impossible state (S200), and paging by the exchange 40A is restricted or no response is made, and paging cannot be performed. For this reason, the exchange 40A reports to the network control device 20 that the connection is impossible (S206). The terminal connection unit 24 that has received this report informs the safety information notification unit 26 that the connection is impossible.

  On the other hand, the communication request receiving unit 23 notifies the notification safety information creating unit 25 that the communication request with the communication terminal 50A has been received, and instructs the creation of the notification safety information regarding the communication terminal 50A. In accordance with the instruction, the notification safety information creation unit 25 creates notification safety information related to the communication terminal 50A for notifying the communication terminal 50B based on the safety information of the communication terminal 50A held in the safety information holding unit 22. Is performed (S207).

  Here, specific processing when the notification safety information creation unit 25 creates notification safety information regarding the communication terminal 50A will be described with reference to FIGS. The notification safety information creation unit 25 refers to the safety information holding unit 22 and acquires safety information regarding the communication terminal 50A. As shown in FIG. 8, the safety information holding unit 22 corresponds to the telephone number of the communication terminal 50, message message registration information transmitted from the disaster message board system 30, and the operation of the own device transmitted from the communication terminal 50. Information is stored in association with each other. As the message message registration information, the presence / absence of registration (“Yes” or “No”) and the identification number of the message message notified from the disaster message board system 30 when the registration is “Yes” are also held. In addition, as the operation information, whether or not the operation information is transmitted from the communication terminal 50 (“Yes” or “No”) is described. Further, the identification number of the notification safety information in FIG. 8 is an identification number indicating notification safety information to be notified with the highest priority based on the presence / absence of message message registration and the presence / absence of operation information. In FIG. 8, all the identification numbers of the notification safety information are assigned for each telephone number. However, the notification safety information creation unit 25 performs the processing described later. As shown in FIG. 9, this notification safety information is given in association with notification safety information to be notified as voice guidance. The table in which the numbers according to the consciousness of the notification safety information and the voice guidance shown in FIG. 9 are associated with each other is held in the network control device 20 and the exchange 40 (40A, 40B). Used.

  FIG. 10 shows a method for selecting a notification safety information identification number based on the presence / absence of message message registration and the presence / absence of operation information. First, it is determined whether or not the message message of the communication terminal 50 is registered in the safety information holding unit 22 (S221).

  If a message message is registered, the message is discriminated based on whether the registration information (message message) is a free sentence, that is, whether the identification number “99” is designated from the disaster message board system 30 (S222). When the identification number is other than “99”, that is, “0X” (in this embodiment, X is any one of 1 to 4), it is determined to use the notification safety information identification number “0X”. (S224). As shown in FIG. 9, the notification safety information identification number “0X” is the same as the fixed sentence used in the disaster message board system 30 (FIG. 6), and the fixed form registered by the communication terminal 50 with respect to the disaster message board system 30. Indicates that the same content as the sentence is used as notification safety information. If the identification number is “99”, it is determined to use the notification safety information identification number “99” (S225). In the case of the notification safety information identification number “99”, the network control device 20 knows that the communication terminal 50 has registered a free sentence with respect to the disaster message board system 30, but the network control device 20 has specific details. Therefore, as shown in FIG. 9, a process of instructing the disaster message board system 30 to notify a message message is performed.

  If the message information of the communication terminal 50 is not registered in the safety information holding unit 22, it is next determined whether or not the operation information from the communication terminal 50 is held in the safety information holding unit 22 (S223). When the operation information of the communication terminal 50 is held, it is determined to use the notification safety information identification number “20” (S226). In this case, as shown in FIG. 9, notification safety information for notifying that the communication terminal 50 has moved is created. When the operation information of the communication terminal 50 is not held, it is determined to use the notification safety information identification number “30” (S227). In this case, as shown in FIG. 9, it can be shown that there is no safety information from the communication terminal 50, or a busy tone can be used as the notification safety information.

  In the case of the communication terminal 50A according to the present embodiment, since it is assumed that a free sentence is registered as a message message, as a result of determination according to FIG. 10, the notification safety information identification number “99” is used (S225). It is decided. Therefore, it is also shown that processing for instructing the message message notification to the disaster message board system 30 is performed according to FIG.

  The notification safety information of the communication terminal 50A created (determined) by the above method is notified from the network control device 20 to the exchange 40B together with the connection status (S204 to S206) confirmed in advance (S208). ). When it is confirmed that the connection between the communication terminal 50B and the communication terminal 50A is not possible, the exchange 40B confirms the notification safety information notified to the communication terminal 50B. The exchange 40B also maintains a table associating the notification safety information identification number shown in FIG. 9 with the voice guidance notified to the communication terminal 50B as notification safety information as described above, and is notified from the network control device 20. The notification safety information is notified to the communication terminal 50B as voice guidance based on the notification safety information identification number. In the process of FIG. 7, since the notification safety information identification number “99” is shown as the notification safety information notified from the network control device 20, the communication terminal 50A is sent from the exchange 40B to the disaster message board system 30. A message message transmission instruction is transmitted (S209).

  In the disaster message board system 30, when the message message notification unit 32 receives a message message transmission instruction from the communication terminal 50A, the message message registered by the communication terminal 50A is acquired from the message messages held by the message message registration unit 31. Then, this is voiced (S210). The message message voiced in the message message notification unit 32 in this way is transmitted to the communication terminal 50B via the exchange 40B (S211a, S211b). As a result, the communication terminal 50B can receive the voiced message message as the notification safety information of the communication terminal 50A (S212), and the owner of the communication terminal 50B listens to the voiced message message. It is possible to know the safety status of the communication terminal 50A. Thereby, the process regarding the safety confirmation of the communication terminal 50A is completed.

(Modification of the first embodiment)
Next, another example of processing when a communication request for communication terminal 50A is transmitted from communication terminal 50B will be described using the sequence diagram of FIG. As a premise for performing the processing of the sequence diagram of FIG. 11, operation information is transmitted from the communication terminal 50A to the network control device 20 in advance and held as safety information (S100 to S104). However, it is assumed that message messages are not registered (S110 to S115) in the disaster message board system 30. In the sequence diagram of FIG. 7, the communication terminal 50 </ b> A has been described as being unable to respond from the beginning (S <b> 200). However, in the sequence diagram of FIG. 11, the communication terminal 50 </ b> A is initially capable of responding (S <b> 230). A case will be described in which a response is not possible (S240) during connection for communication with 50B.

  The communication terminal 50B transmits a communication request with the communication terminal 50A (S231). The communication request with the communication terminal 50A transmitted from the communication terminal 50B is transmitted to the network control device 20 via the exchange 40B (S232a) (S232b). In the network control device 20, when the communication request receiving unit 23 receives a communication request with the communication terminal 50A (S233), the communication request receiving unit 23 notifies the terminal connection unit 24 and performs routing (communication path of the communication path) between the communication terminal 50B and the communication terminal 50A. Establish). In accordance with the instruction, the terminal connection unit 24 requests the exchange 40A to which the communication terminal 50A is connected to issue routing information (S234).

  The exchange 40A confirms the connection status of the communication terminal 50A to the mobile communication network N according to the routing payout request from the network control device 20 (S235). As a result, since the communication terminal 50A is in a response ready state (S230), the exchange information is normally issued in the exchange 40A, and the result is reported to the network controller 20 (S236). The terminal connection unit 24 that has received this report informs the safety information notification unit 26 of the routing information as the connection status.

  On the other hand, the communication request receiving unit 23 notifies the notification safety information creating unit 25 that the communication request with the communication terminal 50A has been received, and instructs the communication terminal 50A to create notification safety information for transmission to the communication terminal 50B. To do. The notification safety information creation unit 25 creates notification safety information according to the instruction (S237). Here, although the operation information is transmitted from the communication terminal 50A to the network control device 20, since the message message is not registered in the disaster message board system 30 as described above, the determination is made according to FIG. As a result, it is determined that the notification safety information identification number “20” is used (S226).

  The network control device 20 notifies the safety information notification of the connection status (routing information) with the communication terminal 50A that has been confirmed as described above and the notification safety information identification number associated with the voice guidance to be notified as notification safety information. The unit 26 notifies the exchange 40B (S238).

  The exchange 40B transmits a connection request with the communication terminal 50A to the exchange 40A based on the routing information transmitted as the connection status from the network control device 20 (S239). However, after confirming the first connection status of the exchange 40A (S235), the communication terminal 50A becomes unable to respond for some reason (S240), and confirms the second connection status from the exchange 40A (S241). I cannot respond to it. Therefore, the exchange 40A notifies the exchange 40B that the connection with the communication terminal 50A could not be established (S242).

  In the exchange 40B, upon receiving the report of the connection failure from the exchange 40A, the communication terminal 50B corresponds to the notification safety information identification number “20” in FIG. 9 “It is in a state where it can move by itself after the disaster” Is transmitted to the communication terminal 50B as voice guidance (S243). The notification safety information by voice guidance can be transmitted by converting a previously held text sentence into a voice using a known technique and transmitting the notification safety information in association with the notification safety information identification number in advance. It is also possible to store the audio data and transmit the audio data. The communication terminal 50B receives the voice guidance of the notification safety information transmitted from the exchange 40B by the above method or the like (S244). The owner of the communication terminal 50B can know the safety status of the communication terminal 50A and the owner by listening to the voice guidance. Thereby, the process regarding the safety confirmation of the communication terminal 50A is completed.

(Effects of the mobile communication system 100 of the first embodiment)
As described above, according to the mobile communication system 100 of the present embodiment, the first communication terminal (communication terminal 50A) that has received the disaster information records the operation of the communication terminal 50A triggered by the reception of the disaster information. Then, the operation information of the communication terminal 50A is held as the safety information by transmitting the operation information to the network control device 20 included in the safety confirmation system 10. Further, when a message message is registered from the communication terminal 50A to the disaster message board system 30 that is also included in the safety confirmation system 10, this information is also held as safety information of the communication terminal 50A. If there is a communication request from the second communication terminal (communication terminal 50B) to the communication terminal 50A and the connection with the communication terminal 50A cannot be established, the safety information is included in the safety information. Based on this, the optimum notification safety information is created, and the communication terminal 50B is transmitted. Therefore, even if the owner of the communication terminal 50A does not make a call or the like using the communication terminal 50A after the disaster occurs, the communication terminal 50A is communicated to the communication terminal 50B based on the safety information held by the network control device 20. The safety information can be notified. Further, according to the present embodiment, the owner of the communication terminal 50B only makes a communication request with the communication terminal 50A without connecting to a special system for confirming the safety of the owner of the communication terminal 50A. Thus, the safety of the owner of the communication terminal 50A can be confirmed.

  Further, when the operation recording unit 52 includes means for recording the movement of the own device as operation information such as the above-described acceleration sensor, the owner of the communication terminal 50A operates the communication terminal 50A. Even if it is not performed, when the communication terminal 50A moves with the owner, information related to the movement is transmitted to the network control device 20 as operation information of the communication terminal 50A, so that safety information can be collected more widely. .

  Further, in the case where the disaster message board system 30 is included in the safety confirmation system 10 as in the present embodiment, when the owner of the communication terminal 50A registers a message message for the disaster message board system 30, Since the message message registered actively by the owner of the communication terminal 50A is preferentially set in the notification safety information, the communication request to the communication terminal 50A is given more appropriate safety information as the notification safety information. Can be provided to the communication terminal 50B that has performed the above. Therefore, safety information can be collected widely, and at the same time, more accurate safety information can be notified to the communication terminal 50B that made the inquiry.

  Furthermore, conventionally, if the owner of the communication terminal 50B who cares about the safety of the owner of the communication terminal 50A does not perform an operation for requesting delivery of a message message to the disaster message board system 30 using the communication terminal 50B, the communication There was a problem that the message message registered by the terminal 50A could not be acquired. On the other hand, in this embodiment, just by transmitting a communication request with the communication terminal 50A from the communication terminal 50B, the message message registered by the communication terminal 50A in the disaster message board system 30 is used, and if necessary, the communication terminal Since this message message is notified to 50B, the message message registered by the communication terminal 50A is provided more widely to the other communication terminals 50 as compared with the conventional disaster message board system. The message message need not be text data, but may be voice data. In that case, the message message is not subjected to voice conversion or the like, and the registered message message is used as it is as notification safety information.

  Furthermore, in the present embodiment, the terminal connection unit 24 of the network control device 20 determines whether or not the communication terminal 50A can be connected, and only when the communication terminal 50A cannot be connected, the notification safety information of the communication terminal 50A is obtained. A mode of transmitting to the communication terminal 50B is taken. Thereby, when the connection with the communication terminal 50A is established according to the line status or the like, the communication terminal 50B can directly communicate with the communication terminal 50A. Therefore, the owner of the communication terminal 50B can confirm the safety status more accurately by directly communicating with the owner of the communication terminal 50A. Note that the above-described configuration is not necessarily required, and notification safety information may be uniformly transmitted when a communication request is received from the communication terminal 50B.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the second embodiment, a case where a CAMEL (Customized Applications for Mobile Enhanced Logic) that provides an IN (Intelligent Network) service for mobile communication is used in the 3G system as compared with the first embodiment will be described. This CAMEL is a technology developed in ETSI (European Telecommunications Standards Institute) to apply IN to mobile communication and realize VHE (Virtual Home Environment), and is applied to a core network.

  When CAMEL is used in the 3G communication mode as in this embodiment, the gsm SSF (GSM Service Switching Function) constituting the exchange 40 (40A, 40B) is related to the CAMEL for the communication terminal 50 under the control. It has a function to perform processing (function to provide various services). The network control device 20 that functions as an SCP has a function as a gsm SCF (GSM Service Control Function) that performs control related to CAMEL. Here, the function as the gsmSCF is a function for instructing the exchange 40B in advance processing related to the CAMEL service when a communication request with the communication terminal 50A is transmitted from the communication terminal 50B to the exchange 40B. . Specifically, when the gsmSCF receives a communication request in the network control device 20, the gsmSCF instructs the exchange 40B to start an incoming service, and special processing is performed when communication with the communication terminal 50A cannot be established. (In the present embodiment, notification that processing related to transmission of notification safety information) occurs. If communication with the communication terminal 50A cannot be established, the exchange 40B notifies the safety result (message message) to the communication terminal 50B by notifying the exchange 40B of the result. Is done. The “incoming system service” refers to, for example, a process of performing incoming call transfer to a different communication terminal at the time of an incoming call, a response process when a communication connection is not established with the communication terminal 50A, or the like.

  The above processing will be described with reference to sequence diagrams shown in FIGS. First, on the premise that the processing of the sequence diagrams of FIGS. 12 and 13 is performed, operation information is transmitted in advance from the communication terminal 50A to the network control device 20 and held as safety information, as in the first embodiment. (S100 to S104) and message messages are registered in the disaster message board system 30 (S110 to S115). Further, it is assumed that the communication terminal 50A registers free text as a message message, and the disaster message board system 30 notifies the network control device 20 of the identification number “99” indicating the message message of the free text.

  First, the first half of processing by the mobile communication system 100 including processing by the safety confirmation system 10 will be described with reference to FIG. The communication terminal 50A is in a state where it cannot respond due to network congestion, battery exhaustion, or the owner not being able to answer the phone (S300). On the other hand, the communication terminal 50B transmits a communication request with the communication terminal 50A (S301). A communication request with the communication terminal 50A transmitted from the communication terminal 50B is transmitted to the exchange 40B (S302), and an incoming call information read request is transmitted from the exchange 40B to the network control device 20 (S303). Here, when the CAMEL is used as in the present embodiment, the incoming information read request transmitted from the exchange 40B to the network control device 20 is the CAMEL for the HLR included in the network control device 20. It inquires whether control should be activated.

  The communication request receiving unit 23 makes a response to the exchange 40B that the incoming information read request has been received (S304). At this time, the communication request receiving unit 23 instructs the exchange 40B to make an inquiry to the gsmSCF in relation to CAMEL. Next, the exchange 40B requests the network control device 20 for a service start instruction used when processing related to the communication terminal 50B is performed in response to this instruction (S305). Note that the “service start instruction request” referred to here is a request for a specific processing instruction regarding a service performed based on CAMEL to the communication terminal 50B.

  When the communication request receiving unit 23 of the network control device 20 receives the service start instruction request, the service information requesting unit 23B that has transmitted the communication request to the communication terminal 50A by referring to the safety information holding unit 22 is required. Confirm whether or not to continue the subsequent processing. Specifically, when the message message of the communication terminal 50A is stored in the safety information holding unit 22 of the network control device 20, it is determined that the communication terminal 50A is in the disaster area, and the subsequent service is continued. It is determined that it is necessary to do so. In this manner, the communication request receiving unit 23 determines whether or not the service is required (S306). Here, when the notification safety information of the communication terminal 50A is stored in the safety information holding unit 22, the communication request reception unit 22 determines that it is necessary to provide an incoming service to the communication terminal 50B. Processing is performed. In addition, when the notification safety information of the communication terminal 50A is not stored in the safety information holding unit 22, it is determined that the communication terminal 50A is not in the disaster area, and the processing related to the provision of the incoming service to the communication terminal 50B is stopped. Is done.

  When the notification safety information of the communication terminal 50A is stored in the safety information holding unit 22, the communication request receiving unit 23 transmits a response to the service start instruction request to the exchange 40B (S307). Further, in this step, an instruction is given to the exchange 40B so that “reception of information when connection with the communication terminal 50A is not established” is set as an event. Here, “event” refers to information that triggers the start of the above incoming service. The exchange 40B registers (records) the event based on an instruction from the network control device 20 (S308), thereby ending the preparation process for the incoming service and performing a network control on a communication request with the communication terminal 50A. It transmits with respect to HLR contained in the apparatus 20 (S309).

  When receiving the communication request from the exchange 40B, the communication request receiving unit 23 of the network control device 20 notifies the terminal connection unit 24 and instructs the routing (establishment of communication path) between the communication terminal 50B and the communication terminal 50A. . In accordance with the instruction, the terminal connection unit 24 requests the exchange 40A to which the communication terminal 50A is connected to issue routing information (S310). The exchange 40A confirms the connection status of the communication terminal 50A to the mobile communication network N according to the routing payout request from the network control device 20 (S311). However, since the communication terminal 50A is in a response impossible state (S300), the exchange 40A reports to the network control device 20 that the connection is impossible (S312). The terminal connection unit 24 that has received this report informs the safety information notification unit 26 that connection to the communication terminal 50A is not possible.

  Subsequently, the latter half of the processing according to the present invention will be described with reference to FIG. The terminal connection unit 24 reports to the exchange 40B that connection to the communication terminal 50A is impossible (S313). Here, in the exchange 40B, when the information transmitted from the network control device 20 (information indicating that connection to the communication terminal 50A is not possible) matches the above registered “event”, an “event” occurs. It is detected (S314). Then, the fact that the event has been detected is notified from the exchange 40B to the network control device 20 (S315). At the same time, the exchange 40B makes an inquiry regarding the subsequent processing to the network control device 20.

  In the network control device 20, when the event detection notification is received from the exchange 40B, the notification safety information creation unit 25 creates notification safety information regarding the communication terminal 50A (S316). Here, the specific process for creating the notification safety information regarding the communication terminal 50 </ b> A in the notification safety information creation unit 25 is the same as the process shown in FIGS. 8 to 10. That is, it is the same as the process when the notification safety information is created based on the safety information of the communication terminal 50A held in the safety information holding unit 22 in the first embodiment (S207). Then, together with the notification safety information created by the notification safety information creation unit 25, the switching network control apparatus 20 instructs the switching system 40B to start the above incoming system service (S317).

  When the exchange 40B receives an incoming service start instruction, the exchange 40B refers to the notification safety information transmitted together with the service start instruction, and transmits a message message transmission instruction of the communication terminal 50A to the disaster message board system 30 ( S318). Then, in the disaster message board system 30, after the message message registered by the communication terminal 50A is acquired, it is voiced (S319). Then, the voiced message message is transmitted to the communication terminal 50B via the exchange 40B (S320a, S320b). As a result, the communication terminal 50B can receive the voice message message as the notification safety information of the communication terminal 50A (S321), and the owner of the communication terminal 50B listens to the voice message message. It is possible to know the safety status of the communication terminal 50A. Thereby, the process regarding the safety confirmation of the communication terminal 50A is completed. The processing from the transmission of the message message transmission instruction by the exchange 40B to the reception of the voiced message message at the communication terminal 50B (S318 to S321) is the same as the processing (S209 to S212) in the first embodiment. The same is done.

  Here, similarly to the modified example of the first embodiment (sequence diagram shown in FIG. 11), the communication terminal 50A can respond at first, but cannot respond during connection with the communication terminal 50B. The case will be described. In this case, the process up to the process of transmitting the routing information payout request to the exchange 40A (S310) is the same as in the present embodiment. However, since it is possible to respond with the communication terminal 50A at this time, routing information is paid out, and the result is notified from the network control device 20 to the exchange 40B. Then, based on this notification, a connection request is transmitted from the exchange 40B to the exchange 40A, whereby processing relating to the connection with the communication terminal 50A is performed. These processes are the same as in the modification of the first embodiment. If, for some reason, the response becomes impossible during the connection (for example, a time-out occurs), the switch 40B receives a connection disable notification transmitted from the switch 40A based on the result. The exchange 40B refers to this notification and detects that a registered “event” has occurred (S314). Thereafter, processing similar to that in the sequence diagram (FIG. 13) of the present embodiment is performed. That is, based on the “event detection” (S314), the switching system 40B starts an incoming call service (processing related to notification safety notification information), and a voice message message is notified to the communication terminal 50B.

  Even in the case where CAMEL is used in the core network as in the second embodiment, the owner of the communication terminal 50A makes a call using the communication terminal 50A after a disaster occurs, as in the first embodiment. Even if not, based on the safety information held by the network control device 20, the safety information of the communication terminal 50A can be notified to the communication terminal 50B. Further, when CAMEL is used in the core network, the implementation of the process related to the safety information notification in the core network is facilitated by adopting the aspect of the present embodiment.

(Third embodiment)
Subsequently, a third embodiment of the present invention will be described. In the present embodiment, a mode in which the mobile communication network N includes an IMS (IP Multimedia Subsystem) will be described. In the mobile communication system according to the third embodiment, the configuration of each functional unit is the same as that of the mobile communication system 100 according to the first embodiment, but the devices for realizing the function of each functional unit are different. Hereinafter, differences between the devices included in the mobile communication system 100 and the mobile communication system 100 according to the first embodiment will be described.

  First, the network control device 20 in this embodiment has a function as an HSS (Home Subscriber Server) in IMS, and manages a subscriber profile of a mobile communication terminal.

  The exchange 40 (40A, 40B) connected when the communication terminal 50 (50A, 50B) is connected to the safety confirmation system 10 is realized by CSCF (Cell / Session Control Function) / AS (Application Server). Among the CSCF / AS, the CSCF is a logical node that processes a SIP (Session Initiation Protocol) message in a standard IMS, and has a function of performing user registration and session setting control. The AS also has a function as a service control apparatus that implements and executes services. And according to the instruction | indication of the network control apparatus 20, communication between the communication terminals 50 connected to the different exchange 40 is performed by performing communication between other exchanges 40 (for example, between the exchange 40A and the exchange 40B). Has the function to perform. In the IMS, although the exchange 40 (40A, 40B) manages information related to the communication terminal 50 under its own control, the information related to the communication of the communication terminal 50 connected under the control of the other exchange 40 is known. The point that management is not performed is different from the 3G system according to the first embodiment.

  Also, an IMS Multimedia Resource (MRF) which is a logical node for sending voice guidance in IMS to a CSCF (Cell / Session Control Function) / AS (Application Server) that performs the function of the exchange 40 (40A, 40B) in the present embodiment. Function) is connected. As described above, there may be a case where a plurality of nodes that function as the exchange 40 are distributed. In the following embodiment, all of these nodes will be described as the “exchange 40”.

  A process related to safety information by the mobile communication system having the above configuration will be described. Of the processes related to safety information, the process related to holding safety information is performed in the same manner as the process related to holding safety information by the mobile communication system 100 of the first embodiment (see FIG. 4). That is, in the communication terminal 50A, the operation of the terminal is recorded when the disaster information is received, and this information is transmitted to the network control device 20 via the exchange 40A, whereby the terminal operation information is retained. Further, by transmitting a message message from the communication terminal 50A to the disaster message board system 30 via the exchange 40A, the message message is held in the disaster message board system 30, and the message message registration information in the disaster message board system 30 is also stored. Is notified to the network control device 20 and held in the network control device 20.

  FIG. 14 is a sequence diagram illustrating processing related to notification of safety information. The process which concerns on the safety information by the mobile communication system 100 which concerns on this embodiment is demonstrated using FIG.

  The communication terminal 50A is in a state where it cannot respond due to network congestion, battery exhaustion, or the owner not being able to answer the phone (S400). On the other hand, the communication terminal 50B transmits a communication request with the communication terminal 50A (S401). The communication request with the communication terminal 50A transmitted from the communication terminal 50B is transmitted to the exchange 40B (S402). In the exchange 40B, based on this communication request, a request for reading information relating to the communication terminal 50A is made to the network control device 20 (S403). In communication using IMS as in the present embodiment, unlike the 3G communication in the first embodiment, processing related to routing information delivery by the network control device 20 is not performed. Here, the read request transmitted to the network control device 20 by the exchange 40B includes the location information and contract information related to the communication terminal 50A and the notification safety information stored in the network control device 20 regarding the communication terminal 50A. It is a request for transmission. In the network control device 20, the communication request receiving unit 23 receives a request for reading information related to the communication terminal 50A (S404).

  Next, in the network control device 20 in the present embodiment, the notification safety information creation unit 25 creates notification safety information based on the information read request related to the communication terminal 50A (S405). Here, the specific process for creating the notification safety information regarding the communication terminal 50 </ b> A in the notification safety information creation unit 25 is the same as the process shown in FIGS. 8 to 10. That is, it is the same as the process when the notification safety information is created based on the safety information of the communication terminal 50A held in the safety information holding unit 22 in the first embodiment (S207). The notification safety information created in the notification safety information creation unit 25 is transmitted from the safety information notification unit 26 to the exchange 40B as a response to the information read request (S406). At this time, contract information of the owner of the communication terminal 50A and information used for connection with the communication terminal 50A such as the area in which the terminal is located are also transmitted from the network control device 20 to the exchange 40B.

  When the exchange 40B receives the information read request response that is transmitted from the network control device 20 and includes the notification safety information and the information used for connection with the communication terminal 50A, the communication terminal 50A connects based on these information. A connection request is transmitted to the exchange 40A (S407). The exchange 40A confirms the connection status of the communication terminal 50A to the mobile communication network N according to the connection request from the exchange 40B (S408). However, since the communication terminal 50A is in a response impossible state (S400), the exchange 40A reports to the exchange 40B that connection is impossible (S409).

  Here, the exchange 40B transmits a message message transmission request to the disaster message board system 30 (S410). And in the disaster message board system 30, after the message message which the communication terminal 50A registered is acquired, it is voiced (S411). Then, the voiced message message is transmitted to the communication terminal 50B via the exchange 40B (S412a, S412b). As a result, the communication terminal 50B can receive the voiced message message as the notification safety information of the communication terminal 50A (S413), and the owner of the communication terminal 50B listens to the voiced message message. It is possible to know the safety status of the communication terminal 50A. Thereby, the process regarding the safety confirmation of the communication terminal 50A is completed. The processing from the transmission of the message message transmission instruction by the exchange 40B to the reception of the voiced message message in the communication terminal 50B (S410 to S413) is the same as the processing in the first embodiment (S209 to S212). The same is done.

  Even if the communication method is changed from 3G to IMS as in the third embodiment, the owner of the communication terminal 50A uses the communication terminal 50A after a disaster occurs, as in the first embodiment. Even if a telephone call or the like is not performed, the safety information of the communication terminal 50A can be notified to the communication terminal 50B based on the safety information held by the network control device 20.

  In the above description, a case has been described in which the creation of notification safety information (S405) is performed after reception of an information read request from the exchange 40B (S404). However, at the above stage, the notification safety information is not created, and after the exchange 40B receives the connection failure notification (S409), the exchange 40B transmits a notification safety information provision request to the network control device 20. Based on this, the network control device 20 may create notification safety information and transmit it to the exchange 40B.

  Further, as a modification of the above-described embodiment, a mode in which part of the processing performed by the exchange 40B is performed by the exchange 40A can be employed. One example will be described below. For example, in the above-described embodiment, when the exchange 40A confirms the connection status (S408) and the connection with the communication terminal 50A cannot be established, the result is a connection failure notification from the exchange 40A to the exchange 40B. (S409). Then, using this notification as an opportunity, the exchange 40B requests the disaster message board system 30 to transmit a message message (S410). As a modified example, when it is confirmed that the connection with the communication terminal 50A is not possible in the exchange 40A (S408), the exchange 40A requests the disaster message board system 30 to transmit a message message. it can. In this case, based on the confirmation result of the connection status of the communication terminal 50A in the exchange 40A, a request for providing notification safety information is transmitted from the exchange 40A to the network control device 20. Then, the disaster message board is exchanged from the exchange 40A using the notification safety information relating to the communication terminal 50A that is stored in advance in the network control apparatus 20 and transmitted from the network control apparatus 20 to the exchange 40A based on the provision request from the exchange 40A. A message message transmission request is transmitted to the system 30. In this case, the fact that the processing related to the transmission of the message message has been performed between the exchange 40A and the disaster message board system 30 is notified from the exchange 40A to the exchange 40B together with the connection failure notification (S409). . As described above, the exchange 40A may perform a part of the processing performed by the exchange 40B in the embodiment.

  Further, in relation to the above-described modification, the exchange (for example, the exchange 40A) to which the communication terminal 50A is connected in advance to the notification safety information related to the communication terminal 50 (for example, the communication terminal 50A) in the disaster area held in the network control device 20 Can be transmitted and stored in the exchange 40A. In this case, when it is confirmed that the connection with the communication terminal 50A is not possible in the exchange 40A (S408), the communication terminal 50A is transmitted from the network control device 20 and stored in the exchange 40A. It is good also as an aspect which performs the transmission request | requirement of a message message with respect to the disaster message board system 30 using notification safety information.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. The fourth embodiment is different from the third embodiment in that CAMEL (Customized Applications for Mobile Enhanced Logic) is used as in the second embodiment. That is, in the fourth embodiment, a processing method when the communication method is IMS as in the third embodiment and CAMEL is used will be described.

  As described above, since the communication method is IMS, the network control device 20 in the mobile communication system 100 according to the present embodiment has a function as an HSS in IMS as in the third embodiment. Further, the network control device 20 has a function as a gsm SCF (GSM Service Control Function) that performs control related to CAMEL, as in the second embodiment.

  The exchange 40 (40A, 40B) connected when the communication terminal 50 (50A, 50B) is connected to the safety confirmation system 10 using IMS is a CSCF (Cell / Session Control Function) / AS (Application Server). It has a function. Further, the exchange 40 (40A, 40B) in the present embodiment is configured to include an MRF (IMS Multimedia Resource Function) which is a physically separate node, as in the third embodiment. Further, the exchange 40 (40A, 40B) includes an IM-SSF (IMS Service Switching Function). This IM-SSF has a function as an AS for providing a service provided by the IN framework as in the second embodiment in the IMS as well. Specifically, IM-SSF is a device for using CAMEL suitably used in 3G in IMS. When this device performs communication with the gsmSCF included in the network control device 20, communication using CAMEL is realized. Hereinafter, the processing will be described.

  FIG. 15 is a sequence diagram illustrating a process related to notification of safety information. The process which concerns on the safety information by the mobile communication system 100 which concerns on this embodiment is demonstrated using FIG. In the present embodiment, the communication terminal 50A registers a free sentence as a message message, and the disaster message board system 30 notifies the network control device 20 of the identification number “04” indicating the message message of the standard sentence. Suppose that And the exchange 40 (40A, 40B) demonstrates the case where the voice guidance of the notification safety information of a fixed phrase is hold | maintained as demonstrated in 1st Embodiment.

  First, as a precondition, the communication terminal 50A is in a state where it cannot respond due to network congestion, battery exhaustion, or the owner not being able to answer the phone (S500). In addition, using CAMEL, the state that “communication terminal 50A cannot respond” in switch 40A is registered in advance as an “event” that triggers the start of an incoming service in switch 40A (S501).

  In the above situation, the communication terminal 50B transmits a communication request with the communication terminal 50A (S502). This communication request is transmitted to the exchange 40B (S503). Based on the communication request, the exchange 40B makes a request to read information related to the communication terminal 50A to the network control device 20 (S504). In the present embodiment, on the basis of this information read request, the network control device 20 (HSS) transmits an information read response including information specifying the exchange 40A to which the communication terminal 50A is connected to the exchange 40B. (S505). When the exchange 40B receives the information read response transmitted from the network control device 20, the exchange 40B connects to the exchange 40A to which the communication terminal 50A is connected based on information such as the connection destination of the communication terminal 50A included in the information read response. A request is transmitted (S506). The exchange 40A confirms the connection status of the communication terminal 50A to the mobile communication network N according to the connection request from the exchange 40B (S507). However, it is confirmed that the communication terminal 50A is in a response impossible state (S500).

  Here, the exchange 40A has registered the state that “the communication terminal 50A cannot respond” as an “event” that triggers the start of the incoming service in the exchange 40A (S501). Thus, it is detected as an “event” that the communication terminal 50A is in a response impossible state (S508). Then, by notifying the network control device 20 including the gsmSCF that controls the CAMEL that the event has been detected (S509), confirmation of the processing to be started in the exchange 40A by the event detection is performed. The notification safety information creation unit 25 of the network control device 20 that has received the event detection notification creates notification safety information (S510). Here, the specific process for creating the notification safety information regarding the communication terminal 50 </ b> A in the notification safety information creation unit 25 is the same as the process shown in FIGS. 8 to 10. That is, it is the same as the process when the notification safety information is created based on the safety information of the communication terminal 50A held in the safety information holding unit 22 in the first embodiment (S207). In the present embodiment, since the fixed sentence is registered by the communication terminal 50A, the identification number “04” of the fixed sentence is selected as the notification safety information. The notification safety information created by the notification safety information creation unit 25 is transmitted from the safety information notification unit 26 to the exchange 40A together with a service (incoming service) start instruction (S511).

  The exchange 40A performs processing related to transmission of a message message based on the service start instruction and notification safety information transmitted from the network control device 20. In the present embodiment, the exchange 40A is connected to the communication terminal 50B because the network control device 20 transmits an instruction to transmit the message message with the identification number “04” indicating the fixed sentence to the communication terminal 50B. A message message transmission request corresponding to the identification number is transmitted to the exchange 40B (S512). Then, a message message (notification safety information) corresponding to the identification number is output to the communication terminal 50B by the MRF included in the exchange 40B (S513). As a result, the communication terminal 50B can receive the voiced message message as the notification safety information of the communication terminal 50A (S514), and the owner of the communication terminal 50B listens to the voiced message message. It is possible to know the safety status of the communication terminal 50A. Thereby, the process regarding the safety confirmation of the communication terminal 50A is completed.

  In the above processing, the case has been described in which the notification safety information of the standard text is notified to the communication terminal 50B. However, when a free text is designated as the notification safety information, the exchange 40A issues a service start instruction. Up to reception (S511) is the same as the sequence diagram shown in FIG. After that, as shown in the sequence diagram of FIG. 16, the exchange 40A sends a message message transmission request to the communication terminal 50B via the exchange 40B to the disaster message board system 30 (S522). Then, after the message message is voiced in the disaster message board system 30 (S523), it is transmitted to the communication terminal 50B via the exchange 40B (S524a, S524b), thereby receiving the message message in the communication terminal 50B. (S525).

  As in the fourth embodiment, even if the communication method is changed from 3G to IMS and CAMEL is used, the owner of the communication terminal 50A is the same as in the first to third embodiments. Even if a call or the like is not performed using the communication terminal 50A after a disaster occurs, the safety information of the communication terminal 50A can be notified to the communication terminal 50B based on the safety information held by the network control device 20. . Further, when CAMEL is used in the core network, the implementation of the process related to the safety information notification in the core network is facilitated by adopting the aspect of the present embodiment.

  In addition, also about the said embodiment, the process performed in the exchange 40A can be changed into the aspect which the exchange 40B performs similarly to 3rd Embodiment. For example, in the above embodiment, the state that “communication terminal 50A cannot respond” in the exchange 40A is registered as an “event” that triggers the start of the incoming service in the exchange 40A (S501), and this event is detected. (S508), the process (S509 ~) related to the notification safety information notification to the communication terminal 50B is performed. However, in response to this, the exchange 40B registers "receive notification that the communication terminal 50A cannot respond" as an "event", and communication is triggered by the notification regarding the connection failure from the exchange 40A. It is good also as an aspect which performs the process which concerns on the notification of the notification safety information with respect to the terminal 50B.

  The preferred embodiment of the present invention has been described above, but the mobile communication system 100 according to the present embodiment is not limited to the above-described embodiment, and can take various aspects.

  For example, although the safety confirmation system 10 is configured to include the network control device 20 and the disaster message board system 30, the exchange 40 (40A, 40B) may be configured to have a part of the functions of the safety confirmation system 10. .

  Moreover, in the said embodiment, the notification safety information which should be notified with the highest priority is produced from the safety information of the communication terminal 50A hold | maintained in the safety information holding | maintenance part 22 as notification safety information regarding the communication terminal 50A, as shown in FIG. However, the safety information (for example, information related to movement of the communication terminal 50A) transmitted from the communication terminal 50A is directly used as the notification safety information. It is also possible to perform transmission. Moreover, it is good also as an aspect which replaces with voice guidance and transmits text data etc. to the communication terminal 50B. In the above-described embodiment, the table in which the notification safety information and the notification safety information identification number illustrated in FIG. 9 are associated with each other is described in both the network control device 20 and the exchange 40. The apparatus 20 performs a process of assigning only the notification safety information identification number associated with the notification safety information without holding the correspondence table, and the exchange 40 side transmits the notification safety information associated with the notification safety information identification number as a voice. It can also be set as the aspect notified to the communication terminal 50B as guidance.

  In the above embodiment, the case where the communication terminal 50A records the operation of its own device for a certain period of time triggered by the reception of the disaster information has been described. However, the operation of the own device is always recorded as operation information in the communication terminal 50A. When disaster information is received, a part of the operation information that is constantly recorded (for example, recording related to a certain time after receiving disaster information) may be transmitted to the network control device 20.

  Moreover, although the said embodiment demonstrated the structure provided with the disaster message board system 30, the structure which is not provided with the disaster message board system 30 may be sufficient. In this case, the network control device 20 holds information related to the operation of the communication terminal 50A as safety information of the communication terminal 50A, and notifies the communication terminal 50B that transmits a communication request with the communication terminal 50A. Therefore, even when the communication terminal 50A does not make a call after a disaster, the present embodiment has the same effect as the above embodiment in that the safety information of the communication terminal 50A can be transmitted to the communication terminal 50B.

  DESCRIPTION OF SYMBOLS 10 ... Safety confirmation system, 20 ... Network control apparatus, 21 ... Terminal operation receiving part, 22 ... Safety information holding part, 23 ... Communication request receiving part, 24 ... Terminal connection part, 25 ... Notification safety information preparation part, 26 ... Safety Information notification unit, 30 ... disaster message board system, 31 ... message message registration unit, 32 ... message message notification unit, 40 ... exchange, 50 ... communication terminal, 51 ... disaster information reception unit, 52 ... operation recording unit, 53 ... operation information Transmitter 54, message message transmitter 100, mobile communication system.

Claims (7)

A communication terminal that communicates by connecting to a mobile communication network and the safety information of the first communication terminal at the time of a disaster are moved to the second communication terminal that has transmitted a communication request with the first communication terminal. A safety confirmation system for notification via a body communication network, and a mobile communication system comprising:
The first communication terminal is
Disaster information receiving means for receiving disaster information related to the disaster;
An operation recording means for recording the operation of the machine;
Based on the fact that the disaster information is received by the disaster information receiving means, the terminal operation for transmitting information related to the operation of the own device recorded by the operation recording means to the safety confirmation system via a mobile communication network A transmission means;
With
The safety confirmation system is
Terminal operation receiving means for receiving information related to the operation of the first communication terminal transmitted from the first communication terminal;
Safety information holding means for holding information on the operation of the first communication terminal received by the terminal operation receiving means as safety information of the first communication terminal;
Communication request receiving means for receiving a communication request with the first communication terminal transmitted from the second communication terminal;
Based on the communication request received by the communication request receiving means, the safety information held by the safety information holding means is referred to, and based on the safety information of the first communication terminal, the second communication terminal Notification safety information creating means for creating notification safety information for notifying to,
Safety information notification means for notifying the second communication terminal communication terminal of the notification safety information created by the notification safety information creation means;
A mobile communication system comprising:   2. The mobile communication system according to claim 1, wherein, when the own device moves, the operation recording means records the movement as an operation of the own device.   The mobile communication system according to claim 1 or 2, wherein the operation recording unit records the operation of the own device when the disaster information receiving unit receives the disaster information. The safety confirmation system is
Terminal connection means for connecting to the first communication terminal based on a communication request with the first communication terminal transmitted from the second communication terminal received by the communication request receiving means. ,
The said safety information notification means notifies the said notification safety information to the said 2nd terminal, when the connection to the said 1st communication terminal cannot be performed in the said terminal connection means. The mobile communication system according to claim 1. The first communication terminal is
A message message transmitting means for transmitting a message message to the safety confirmation system;
The safety confirmation system is
A message message distribution means for receiving the message message transmitted from the first communication terminal and transmitting the message message to the other terminal in response to a message message distribution request from another communication terminal;
The safety information holding unit further holds the message message received by the message message delivery unit as safety information of the first communication terminal. The mobile communication system described. A communication terminal that communicates by connecting to a mobile communication network, and the safety information of the first communication terminal at the time of a disaster is moved to the second communication terminal that has transmitted a communication request with the first communication terminal. A first communication terminal in a mobile communication system configured to include a safety confirmation system for notification via a body communication network,
Disaster information receiving means for receiving disaster information related to the disaster;
An operation recording means for recording the operation of the machine;
Based on the fact that the disaster information is received by the disaster information receiving means, the terminal operation for transmitting information related to the operation of the own device recorded by the operation recording means to the safety confirmation system via a mobile communication network A transmission means;
A first communication terminal comprising: The safety information of the first communication terminal among the communication terminals that communicate by connecting to the mobile communication network in the event of a disaster is transferred to the second communication terminal that has transmitted a communication request with the first communication terminal. A safety confirmation system for notification via a body communication network,
Terminal operation receiving means for receiving information related to the operation of the first communication terminal transmitted from the first communication terminal;
Safety information holding means for holding information on the operation of the first communication terminal received by the terminal operation receiving means as safety information of the first communication terminal;
A communication request receiving means for receiving a communication request with the first communication terminal transmitted from any of the second communication terminals;
Based on the communication request received by the communication request receiving means, the safety information held by the safety information holding means is referred to, and based on the safety information of the first communication terminal, the second communication terminal Notification safety information creating means for creating notification safety information for notifying to,
Safety information notification means for notifying the second communication terminal communication terminal of the notification safety information created by the notification safety information creation means;
A safety confirmation system comprising:

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