JP2015005915A - Report method, radio communication terminal, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique to report information on a radio communication terminal situated in an out-of-zone area of a base station to a predetermined report destination without imposing a load on an environment in a surrounding area and at low cost and more reliably.SOLUTION: A mobile terminal 1 having created or received a rescue request message stores the message in a rescue request storage unit 109. If the mobile terminal 1 is situated in an in-zone border part 41, it transmits the rescue request message to a rescue center device 2 and deletes the message from the rescue request storage unit 109. On the other hand, if the mobile terminal 1 is situated in an out-of-zone 42 of a base station 4, it waits for a connection request from another mobile terminal 1, establishes a radio communication path by ad-hoc communication, and transmits the rescue request message. In addition, a mobile terminal 1 that has not stored a rescue request message in its rescue request storage unit 109 repeatedly broadcasts a connection request regularly or irregularly, establishes a radio communication path with another mobile terminal 1 having responded to the connection request by ad-hoc communication, and receives a rescue request message.

Description

  The present invention relates to a technique for reporting information on a wireless communication terminal located outside a base station area to a predetermined reporting destination.

  Patent Document 1 discloses a technology that enables a rescue request by a mobile phone held by a rescuer in the event of a distress in a mountain where radio waves of a mobile phone network do not reach. In this technique, the rescue team uses a helicopter or the like to spray a number of relay sensors from above in an area where it is estimated that a rescuer is needed. The rescuer's mobile phone performs ad hoc communication with relay sensors scattered around and sends a rescue signal including current location information to these relay sensors. The relay sensor that has received the rescue signal performs ad hoc communication with other relay sensors located in the vicinity, and transmits the rescue signal to the other relay sensor. By repeating this process, the rescue signal spreads to the plurality of relay sensors. Then, among the relay sensors that have received the rescue signal, the relay sensor that has been spread to the position where the rescue crew's mobile phone can be ad-hoc communicated with the rescue crew's mobile phone and performs the ad-hoc communication, and the rescue signal is sent to this mobile phone. Send.

JP 2006-237666 A

  However, in the technique described in Patent Document 1, a large number of relay sensors must be sprayed from the sky using a helicopter or the like in an area where it is estimated that a rescuer is required, which is very expensive. Moreover, it is difficult to collect all of these relayed sensors, which may deteriorate the environment of the relay sensor spraying area. In addition, since the rescue team is dispatched after recognizing the presence of the person in need of rescue, it may take time until the relay sensor is sprayed after the occurrence of a distress or the like. Here, when the rescuer's mobile phone is switched to the rescue mode by the rescuer's operation, the rescue signal continues to be output, and thus the battery may be consumed before the relay sensor is sprayed.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to ensure that information on wireless communication terminals located outside the base station area is more reliably determined at a low cost without imposing a load on the surrounding environment. The purpose is to provide a technology for reporting to the report destination.

  In order to solve the above-described problem, in the present invention, a wireless communication terminal that has created or received predetermined information holds the predetermined information, and the own wireless communication terminal is located within a base station area. The predetermined information is transmitted to the predetermined report destination via the base station. On the other hand, if the own wireless communication terminal is located outside the base station area, it waits for a connection request from another wireless communication terminal and establishes a communication path with the other wireless communication terminal. Then, predetermined information is transmitted to other wireless communication terminals via this communication path. A wireless communication terminal that does not hold predetermined information repeatedly transmits a connection request periodically or irregularly, and establishes a communication path with another wireless communication terminal that responds to the connection request. Receive predetermined information from other wireless communication terminals.

For example, the reporting method of the present invention is a reporting method for reporting predetermined information created by a wireless communication terminal located outside the area of a base station to a predetermined reporting destination via at least one other wireless communication terminal. And
A wireless communication terminal located outside the base station is
Wait for the connection request to be received. If the connection request is received, a response is returned, a communication path is established with the connection request transmission source, and the predetermined information is transmitted to the connection request transmission source. And
The other wireless communication terminal is:
When the connection request is repeatedly broadcast periodically or irregularly and a response to the connection request is received, a communication path is established with the response transmission source, and the response transmission source As well as receiving
If the own radio communication terminal is within range of the base station, the received predetermined information is transmitted to the predetermined report destination via the base station,
If the own radio communication terminal is out of range of the base station, it stops repeatedly sending the connection request, waits for the connection request to be received, and if it receives the connection request, returns a response to send the connection request. A communication path is established with the source of the connection request, and the predetermined information is transmitted to the source of the connection request.

Further, for example, the wireless communication terminal of the present invention is a wireless communication terminal capable of wireless communication with other wireless communication terminals without going through a base station,
Within-range determination means for determining whether or not the own wireless communication terminal is located within the range of the base station,
Information creating means for creating predetermined information according to an operator's instruction;
Information storage means for storing the predetermined information created by the information creation means or received from the other wireless communication terminal;
A connection request transmitting means for repeatedly broadcasting a connection request periodically or irregularly when the predetermined information is not stored in the information storage means;
When the predetermined information is stored in the information storage means, if it is determined by the area determination means that the own wireless communication terminal is located within the area of the base station, via the base station A reporting means for transmitting the predetermined information to a predetermined reporting destination;
When the predetermined information is stored in the information storage means, if the area determination means determines that the own wireless communication terminal is located outside the area of the base station, the other wireless communication terminal A relay unit that monitors the connection request transmitted from the wireless communication terminal and transmits the predetermined information to the other wireless communication terminal in response to the connection request received from the other wireless communication terminal.

  In the present invention, the predetermined information created by the wireless communication terminal located outside the base station is spread to at least one moving wireless communication terminal that can directly communicate with the wireless communication terminal, and the base station within Is relayed to a predetermined report destination by a wireless communication terminal located in For this reason, it is not necessary to scatter many relay sensors etc. in the area including the location of the wireless communication terminal which created the predetermined information. In addition, a wireless communication terminal other than the wireless terminal communication terminal holding the predetermined information repeatedly transmits the connection request, and the wireless communication terminal holding the predetermined information transmits the connection request repeatedly. Without waiting, it waits for the own wireless communication terminal to move within the range of the base station or to receive a connection request from another wireless communication terminal. For this reason, battery consumption of the wireless communication terminal holding the predetermined information can be suppressed.

  Therefore, according to the present invention, information on wireless communication terminals located outside the area of the base station can be reported to a predetermined report destination more reliably at low cost without imposing a load on the surrounding area.

FIG. 1 is a schematic configuration diagram of an emergency call system according to an embodiment of the present invention. FIG. 2 is a sequence diagram for explaining an operation example of the emergency call system according to the embodiment of the present invention. FIG. 3 is a sequence diagram for explaining an operation example of the emergency call system according to the embodiment of the present invention. FIG. 4 is a schematic functional configuration diagram of the mobile terminal 1. FIG. 5 is a diagram schematically illustrating an example of registered contents in the handled list storage unit 110. FIG. 6 is a flowchart for explaining the operation of the mobile terminal 1. FIG. 7 is a flowchart for explaining the rescue request support process of the mobile terminal 1.

  An embodiment of the present invention will be described below.

  FIG. 1 is a schematic configuration diagram of an emergency call system according to the present embodiment.

  As shown in the figure, the emergency call system is a rescue center device 2, a handled list distribution device 3, and an area within the area (the central area 40 within the area, and between the central area 40 and the outside area 42 within the area). A plurality of portable terminals 1-1 to 1-4 (hereinafter simply referred to as “communicating terminals”) that can communicate with the rescue center device 2 and the corresponding list distribution device 3 via the base station 4 and the WAN 5 And also referred to as a portable terminal 1).

  The rescue center device 2 receives a rescue request message including user information and current location information of the mobile terminal 1 from the mobile terminal 1 via the base station 4 and the WAN 5. The supported list distribution device 3 responds to the rescue request that has been handled by the rescue team among the rescue request messages received by the rescue center device 2 in accordance with the supported list request message received from the mobile terminal 1 via the WAN 5 and the base station 4. Send a supported list that is a list of messages. The mobile terminal 1 has an ad hoc communication function for wirelessly communicating with other mobile terminals 1 without going through the base station 4.

  In the emergency call system configured as described above, the mobile terminal 1 located outside the service area 42 of the base station 4 generates a rescue request message created according to an operator's instruction or received by another mobile terminal 1 by another mobile phone using an ad hoc communication function. Spread to terminal 1. And the portable terminal 1 located in the area | region boundary 41 of the base station 4 transmits the rescue request message received from the other portable terminal 1 by the ad hoc communication function to the rescue center apparatus 2 via the base station 4 and the WAN 5. . In addition, when the rescue request message received from another mobile terminal 1 by the ad hoc communication function is described in the supported list acquired from the supported list distribution device 3, the mobile terminal 1 discards the rescue request message. At the same time, a notification message indicating that the rescue request message has been handled is sent to the portable terminal 1 that has transmitted the rescue request message, and the portable terminal 1 is made to discard the rescue request message. This prevents the spread of rescue request messages that have been handled by the rescue team.

  2 and 3 are sequence diagrams for explaining an operation example of the emergency call system according to the present embodiment. FIG. 3 shows a continuation of the operation example shown in FIG.

  The portable terminals 1-1 to 1-3 are located outside the area 42 of the base station 4 (S100 to S102), and the portable terminals 1-4 are located in the central area 40 of the base station 4 ( S103).

  First, the mobile terminals 1-1 to 1-3 detect that the mobile terminal 1 is located outside the coverage area 42 or within the coverage area 41 of the base station 4 and perform ad hoc communication with a nearby mobile terminal 1. The periodic or irregular transmission of the connection request is started (S104 to S106).

  Next, it is assumed that the portable terminal 1-1 receives a rescue request operation from the operator (S107). In response, the portable terminal 1-1 creates and holds a rescue request message (MSG) including the current location information calculated using the GPS function and the user information of the operator (S108). Then, the broadcast transmission of the connection request is stopped repeatedly, and the connection request is sent from another portable terminal 1 (S109).

  Here, it is assumed that the mobile terminal 1-2 has approached a distance that allows ad hoc communication with the mobile terminal 1-1 (S110). The portable terminal 1-1 receives the connection request broadcast from the portable terminal 1-2 (S111), and returns a response (S112). Thereby, the radio | wireless communication path by ad hoc communication is established between the portable terminal 1-1 and the portable terminal 1-2. And the portable terminal 1-1 transmits the rescue request message which the own portable terminal 1-1 hold | maintains to the portable terminal 1-2 via this radio | wireless communication path (S113).

  When the mobile terminal 1-2 receives the rescue request message from the mobile terminal 1-1, the mobile terminal 1-2 confirms that the rescue request message is not described in the corresponding list held by the mobile terminal 1-2, The rescue request message is held (S114). Then, the broadcast transmission of the connection request is stopped repeatedly, and the connection request is sent from another portable terminal 1 (S115).

  Here, it is assumed that the portable terminal 1-3 has come close to a distance that allows ad-hoc communication with the portable terminal 1-2 (S116). The portable terminal 1-2 receives the connection request broadcast from the portable terminal 1-3 (S117), and returns a response (S118). Thereby, the radio | wireless communication path by ad hoc communication is established between the portable terminal 1-2 and the portable terminal 1-3. And the portable terminal 1-2 transmits the rescue request message which the own portable terminal 1-2 hold | maintains to the portable terminal 1-3 via this radio | wireless communication path (S119).

  When the mobile terminal 1-3 receives the rescue request message from the mobile terminal 1-2, the mobile terminal 1-3 confirms that the rescue request message is not described in the corresponding list held by the mobile terminal 1-3, The rescue request message is held (S120). Then, the broadcast transmission of the connection request is stopped repeatedly, and the connection request is sent from another portable terminal 1 (S121).

  Here, it is assumed that the mobile terminal 1-3 has moved from the out-of-service area 42 of the base station 4 to the in-service area boundary 41 (S122). When it is detected that the mobile terminal 1-3 is located at the in-border boundary 41 of the base station 4, the mobile terminal 1-3 performs attribution processing on the base station 4 (S123) and belongs to the base station 4. Then, the portable terminal 1-3 transmits the rescue request message held by the portable terminal 1-3 to the rescue center device 2 via the base station 4 (S124). Thereby, the rescue request message created by the portable terminal 1-1 located outside the service area 42 of the base station 4 is transmitted to the rescue center device 2 via the other portable terminals 1-2, 1-3. Thereafter, the portable terminal 1-3 deletes the rescue request message held by the own portable terminal 1-3 (S125), and starts repeated broadcast transmission of the connection request (S126). It should be noted that the response list of the response list distribution device 3 includes, for example, a rescue request message corresponding to the rescue request message when the rescue team responds to the rescue request message issued from the portable terminal 1-1. As well as the corresponding date and time.

  Next, it is assumed that the mobile terminal 1-4 has moved from the central area 40 of the base station 4 to the boundary area 41 (S127). When it is detected that the portable terminal 1-4 is located in the area boundary 41 of the base station 4, a predetermined time has elapsed since the correspondence list was last obtained from the correspondence list distribution device 3. And a supported list request message (MSG) is transmitted to the supported list distribution apparatus 3 via the base station 4 (S128). In response, the supported list distribution device 3 transmits the latest supported list to the portable terminal 1-4 (S129). At this time, it is assumed that the rescue request message created by the mobile terminal 1-1 has already been described in the supported list as the rescue request message that has been processed, along with the corresponding date and time.

  When the mobile terminal 1-4 receives the latest supported list from the supported list distribution device 3, the mobile terminal 1-4 updates the supported list held by the mobile terminal 1-4 to this latest supported list (S130). ). In addition, the portable terminal 1-4 starts repeated broadcast transmission of a connection request (S131).

  Here, it is assumed that the portable terminal 1-2 has come close to a distance that allows ad-hoc communication with the portable terminal 1-4 (S132). The portable terminal 1-2 receives the connection request broadcast from the portable terminal 1-4 (S133), and returns a response (S134). Thereby, the radio | wireless communication path by ad hoc communication is established between the portable terminal 1-2 and the portable terminal 1-4. And the portable terminal 1-2 transmits the rescue request message of the portable terminal 1-1 which the own portable terminal 1-2 hold | maintains to the portable terminal 1-4 via this radio | wireless communication path (S135).

  When the portable terminal 1-4 receives the rescue request message from the portable terminal 1-2, the portable terminal 1-4 confirms that the rescue request message is described in the corresponding list held by the portable terminal 1-4, The rescue request message is discarded (S136). Then, the mobile terminal 1-4 creates a response notification message (MSG) for notifying that the rescue request message has been processed and transmits it to the mobile terminal 1-2 (S137).

  When the portable terminal 1-2 receives the handled notification message from the portable terminal 1-4, the rescue request held by the portable terminal 1-2 is added to the handled list held by the portable terminal 1-2. A message is added to update the corresponding list (S138), and the rescue request message held by the portable terminal 1-2 is discarded (S139). Thereby, the spread of the rescue request message created by the mobile terminal 1-1 is terminated. Then, the portable terminal 1-2 starts the repeated broadcast transmission of the connection request (S140).

  Next, details of the mobile terminal 1 will be described. In addition, since the existing file server etc. can be utilized for the rescue center apparatus 2 and the correspondence list distribution apparatus 3, the detailed description is abbreviate | omitted.

  FIG. 4 is a schematic functional configuration diagram of the mobile terminal 1.

  As illustrated, the mobile terminal 1 includes a wireless LAN interface unit 100, a man-machine interface unit 101, a GPS receiving unit 102, a current location calculation unit 103, an infrastructure communication control unit 104, and an ad hoc communication control unit 105. , Area determination unit 106, connection request processing unit 107, user information storage unit 108, rescue request storage unit 109, completed list storage unit 110, rescue request creation unit 111, rescue request notification unit 112, A handled list acquisition unit 113, a rescue request relay unit 114, a handled notification unit 115, and a main control unit 116 are provided.

  The wireless LAN interface unit 100 is an interface for connecting to a wireless LAN.

  The man-machine interface unit 101 is an interface for outputting audio data and image data, receiving an operation such as a rescue request operation and an input of audio data from an operator, and an output device such as a liquid crystal panel or a speaker. And input devices such as a microphone, a key, a pointing device, and a touch sensor.

  The GPS receiving unit 102 receives GPS data sequentially transmitted from a GPS (Global Positioning System) satellite.

  The current location calculation unit 103 calculates the current location of the mobile terminal 1 based on the latest GPS data received by the GPS reception unit 102.

  The infrastructure communication control unit 104 controls infrastructure communication by the wireless LAN interface unit 100. Specifically, the wireless LAN interface unit 100 establishes a wireless communication path with the base station 4 and communicates with the WAN 5 through this wireless communication path.

  The ad hoc communication control unit 105 controls ad hoc communication by the wireless LAN interface unit 100. Specifically, the wireless LAN interface unit 100 is allowed to establish a wireless communication path with another portable terminal 1 without going through the base station 4, and directly communicate with the other portable terminal 1 via this wireless communication path. Do.

  The area determination unit 106 determines whether the mobile terminal 1 is located in the central area 40 of the base station 4 based on the received radio wave intensity such as a beacon signal sequentially transmitted from the base station 4 or the boundary area 41 It is sequentially determined whether it is located or outside the service area 42.

  The connection request processing unit 107 processes a connection request for performing ad hoc communication with another mobile terminal 1.

  The user information storage unit 108 stores user information including the name, address, emergency contact information, etc. of the operator of the mobile terminal 1.

  The rescue request storage unit 109 stores a rescue request message created by the mobile terminal 1 or received from another mobile terminal 1. The rescue request message includes current location information and user information of the portable terminal 1 of the rescuer.

  The handled list storage unit 110 stores the handled list acquired from the handled list distribution device 3. FIG. 5 is a diagram schematically illustrating an example of registered contents in the handled list storage unit 110. As shown in the figure, the handled list storage unit 110 stores the handled list 1100 in association with the acquisition date 1110. In the handled list 1100, a record 1101 of a rescue request message that has been handled by the rescue team is stored. The record 1101 has a field 1102 for registering user information, a field 1103 for registering current location information, and a field 1104 for registering the corresponding date and time by the rescue team.

  The rescue request creation unit 111 creates a rescue request message including the user information stored in the user information storage unit 108 and the current location information calculated by the current location calculation unit 103.

  The rescue request notification unit 112 transmits a rescue request message stored in the rescue request storage unit 109 to the rescue center device 2 via the infrastructure communication control unit 104 and the wireless LAN interface unit 100.

  The handled list acquisition unit 113 acquires the handled list 1100 from the supported list distribution device 3 via the wireless LAN interface unit 100 and the infrastructure communication control unit 104.

  The rescue request relay unit 114 transmits the rescue request message stored in the rescue request storage unit 109 to the other mobile terminal 1 via the ad hoc communication control unit 105 and the wireless LAN interface unit 100. Alternatively, a rescue request message is received from another mobile terminal 1 via the wireless LAN interface unit 100 and the ad hoc communication control unit 105.

  If the rescue request message received from the other portable terminal 1 by the rescue request relay unit 114 is posted on the supported list 1100 stored in the supported list storage unit 110, the supported notification unit 115 A correspondence notification message indicating that the rescue request message has been handled is transmitted to the mobile terminal 1 that is the source of the rescue request message via the ad hoc communication control unit 105 and the wireless LAN interface unit 100.

  And the main control part 116 controls each part 100-115 of the portable terminal 1 centralizedly.

  The functional configuration of the mobile terminal 1 shown in FIG. 4 may be realized by an integrated logic IC such as ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array), or DSP (Digital). It may be realized by software by a computer such as Signal Processor. Alternatively, in a general-purpose computer such as a CPU, a memory, an auxiliary storage device such as an HDD, and a PC (Personal Computer) equipped with a communication interface such as a modem or NIC (Network Interface Card), a tablet terminal, a smart phone, etc. It may be realized by loading the program from the auxiliary storage device onto the memory and executing it.

  FIG. 6 is a flowchart for explaining the operation of the mobile terminal 1.

  Based on the determination result in the area determination unit 106, the main control unit 116 determines whether or not the mobile terminal 1 has moved from the area center 40 to the area boundary 41 (S200). If it is determined that the portable terminal 1 has moved from the central area 40 to the boundary area 41 (YES in S200), the main control section 116 stores the corresponding list stored in the corresponding list storage section 110. By referring to the acquisition date 1110 of 1100, the acquisition date 1110 of the corresponding list 1100 is compared with the current date and time, and it is determined whether or not a predetermined time has passed since the acquisition of the corresponding list 1100 ( S201).

  Here, when a predetermined time has elapsed since acquisition of the handled list 1100 (YES in S201), the main control unit 116 instructs the handled list acquisition unit 113 to acquire the handled list 1100. In response to this, the handled list acquisition unit 113 transmits a handled list request message to the supported list distribution device 3 via the infrastructure communication control unit 104 and the wireless LAN interface unit 100, and the supported list distribution device 3. The latest supported list 1100 is obtained from The main control unit 116 clears the contents of the corresponding list storage unit 110 and stores the latest corresponding list 1100 acquired by the corresponding list acquisition unit 113 in association with the acquisition date 1110 in the corresponding list storage unit 110. (S202). Then, the main control unit 116 starts a rescue request support process described later (S203). On the other hand, if the predetermined time has not elapsed since acquisition of the handled list 1100 (NO in S201), the main control unit 116 immediately starts the rescue request support process (S203).

  Next, when the main control unit 116 starts the rescue request support process, based on the determination result in the area determination unit 106, whether or not the own mobile terminal 1 has moved from the area boundary 41 to the area center 40. Is determined (S204). If it is determined that the mobile terminal 1 has moved from the area boundary 41 to the area center 40 (YES in S204), the main control unit 116 ends the rescue request support process (S205) and returns to S200. .

  FIG. 7 is a flowchart for explaining the rescue request support process of the mobile terminal 1.

  First, the main control unit 116 instructs the connection request processing unit 107 to broadcast a connection request. In response to this, the connection request processing unit 107 repeatedly transmits a connection request for requesting connection by ad hoc communication from the wireless LAN interface unit 100 periodically or irregularly (S300).

  When the main control unit 116 receives a rescue request operation from the operator via the man-machine interface unit 101 (YES in S301), the main control unit 116 reads the user information of the operator from the user information storage unit 108, and sends the rescue request creation unit 111 to the rescue request creation unit 111. This user information is handed over to create a rescue request message. In response to this, the rescue request creation unit 111 creates a rescue request message including the user information received from the main control unit 116 and the latest current location information calculated by the current location calculation unit 103. The main control unit 116 stores the rescue request message in the rescue request storage unit 109 (S302).

  Then, the main control unit 116 instructs the connection request processing unit 107 to stop the broadcast transmission of the connection request. In response to this, the connection request processing unit 107 stops the repeated broadcast transmission of the connection request (S303). Next, the main control unit 116 refers to the latest determination result in the area determination unit 106 and checks whether the own mobile terminal 1 belongs to the area boundary 41 or outside the area 42 (S304).

  If the mobile terminal 1 belongs to the area boundary 41 (“area boundary” in S304), the main control unit 116 requests the rescue request to transmit the rescue request message stored in the rescue request storage unit 109. Instruct the reporting unit 112. In response to this, the rescue request notifying unit 112 checks whether or not the mobile terminal 1 has already belonged to the base station 4 (S305). If the mobile terminal 1 has already belonged to the base station 4 (YES in S305), infrastructure communication control is performed. The rescue request message is transmitted to the rescue center device 2 via the base station 4 by infrastructure communication using the unit 104 and the wireless LAN interface unit 100. Thereafter, the main control unit 116 deletes the rescue request message that has been transmitted from the rescue request storage unit 109 (S307), and returns to S300. If the mobile terminal 1 has not yet belonged to the base station 4 (NO in S305), the rescue request reporting unit 112 causes the infrastructure communication control unit 104 to perform attribution processing to the base station 4 (S306). Then, a rescue request message is transmitted to the rescue center device 2 via the base station 4 by infrastructure communication using the infrastructure communication control unit 104 and the wireless LAN interface unit 100. Thereafter, the main control unit 116 deletes the rescue request message that has been transmitted from the rescue request storage unit 109 (S307), and returns to S300.

  On the other hand, when the mobile terminal 1 belongs to the out-of-service area 42 (“out-of-service area” in S304), the main control unit 116 sends a connection request broadcast from the nearby mobile terminal 1 via the wireless LAN interface unit 100. It is determined whether or not the connection request processing unit 107 has received (S308). If a connection request has not been received from the nearby mobile terminal 1 (NO in S308), the process returns to S304, and if a connection request has been received from the nearby mobile terminal 1 (YES in S308), a connection request processing unit A response is instructed to 107. In response, the connection request processing unit 107 returns a response to the mobile terminal 1 that is the connection request transmission source via the wireless LAN interface unit 100, and performs ad hoc communication with the mobile terminal 1 that is the connection request transmission source. Establish a wireless communication path. When a wireless communication path by ad hoc communication is established, the main control unit 116 instructs the rescue request relay unit 114 to transmit a rescue request message stored in the rescue request storage unit 109. In response, the rescue request relay unit 114 transmits a rescue request message to the counterpart terminal 1 on the wireless communication path by ad hoc communication using the ad hoc communication control unit 105 and the wireless LAN interface unit 100 (S309). Then, the rescue request relay unit 114 determines whether or not a response completion notification message has been received from the counterpart terminal 1 on the wireless communication path via the wireless LAN interface unit 100 and the ad hoc communication control unit 105 (S310). ).

  When the response completion notification message is not received from the counterpart terminal 1 on the wireless communication path within a predetermined time (NO in S310), the rescue request relay unit 114 causes the ad hoc communication control unit 105 to disconnect the wireless communication path (S311). , Return to S304. On the other hand, when the response completion notification message is received from the counterpart terminal 1 on the wireless communication path within a predetermined time (YES in S310), the rescue request relay unit 114 passes this response notification message to the main control unit 116. In response to this, the main control unit 116 adds a new record 1101 to the handled list 1100 stored in the handled list storage unit 110 and stores the rescue request storage unit 109 in the fields 1102 and 1103 of the record 1101. The user information and the current location information included in the rescue request message stored in is registered, and the corresponding date and time included in the response notification message is registered in the field 1104 (S312). Further, the main control unit 116 deletes the corresponding rescue request message from the rescue request storage unit 109 (S313). Thereafter, the rescue request relay unit 114 causes the ad hoc communication control unit 105 to disconnect the wireless communication path (S314), and returns to S300.

  When the connection request processing unit 107 receives a response to the connection request transmitted from the other portable terminal 1 via the wireless LAN interface unit 100 via the wireless LAN interface unit 100 (YES in S320), the connection request processing unit 107 A wireless communication path by ad hoc communication is established with the mobile terminal 1. When the wireless communication path by ad hoc communication is established, the rescue request relay unit 114 receives a rescue request message from the counterpart terminal 1 on the wireless communication path via the wireless LAN interface unit 100 and the ad hoc communication control unit 105 (S321). A rescue request message is passed to the main control unit 116. In response to this, the main control unit 116 refers to the handled list 1100 stored in the handled list storage unit 110 and checks whether or not this rescue request message is listed in the handled list 1100. Specifically, it is checked whether or not the record 1101 in which user information and current location information included in the rescue request message are registered in the fields 1102 and 1103 is included in the correspondence list 1100 (S322).

  If the rescue request message received from the counterpart terminal 1 on the wireless communication path is not listed in the corresponding list 1100 stored in the corresponding list storage unit 110 (NO in S322), the main control unit 116 The rescue request message is stored in the rescue request storage unit 109, and the rescue request message is displayed on the man-machine interface unit 101 to notify the operator that the rescue request message has been received (S323). Thereafter, the rescue request relay unit 114 causes the ad hoc communication control unit 105 to disconnect the wireless communication path (S324), and returns to S303.

  On the other hand, if the rescue request message received from the counterpart terminal 1 on the wireless communication path is listed in the handled list 1100 stored in the handled list storage unit 110 (YES in S322), the main control unit 116 The rescue request message is discarded (S325). Also, the corresponding date and time is specified from the field 1104 of the record 1101 of the corresponding list 1100 in which the user information and the current location information included in the rescue request message are registered in the fields 1102 and 1103, and the corresponding date and time is notified. To the unit 115. In response, the supported notification unit 115 creates a supported notification message including the corresponding date and time notified from the main control unit 116, and the supported notification message is sent to the ad hoc communication control unit 105 and the wireless LAN interface unit 100. Is transmitted to the counterpart terminal 1 in the wireless communication path (S326). Thereafter, the corresponding notification unit 115 causes the ad hoc communication control unit 105 to disconnect the wireless communication path (S327), and returns to S301.

  The embodiment of the present invention has been described above.

  In the present embodiment, the mobile terminal 1 that has created or received the rescue request message stores the rescue request message in the rescue request storage unit 109. If the mobile terminal 1 is located in the area boundary 41 of the base station 4, a rescue request message is transmitted to the rescue center device 2 via the base station 4. On the other hand, if the mobile terminal 1 is located outside the service area 42 of the base station 4, the mobile terminal 1 waits for a connection request from another mobile terminal 1 and then ad hoc between the mobile terminal 1 and another mobile terminal 1. A wireless communication path is established by communication, and a rescue request message is transmitted to the other portable terminal 1 via this wireless communication path. Further, the portable terminal 1 that does not store the rescue request message in the rescue request storage unit 109 repeatedly transmits a connection request periodically or irregularly. Then, a wireless communication path by ad hoc communication is established with the other portable terminal 1 that has responded to the connection request, and a rescue request message is received from the other portable terminal 1.

  For this reason, the rescue request message created by the mobile terminal 1 located outside the service area 42 of the base station 4 is spread to at least one mobile terminal 1 that can be directly communicated with the mobile terminal 1, and the base station 4 Is relayed to the rescue center device 2 by the portable terminal 1 located at the in-border boundary portion 41 of FIG. Therefore, it is not necessary to scatter many relay sensors or the like in the area including the location of the mobile terminal 1 that has created the rescue message. Further, the mobile terminal 1 other than the mobile terminal 1 storing the rescue request message in the rescue request storage unit 109 repeatedly transmits a connection request and stores the rescue request message in the rescue request storage unit 109. The mobile terminal 1 moves from the out-of-service area 42 of the base station 4 to the in-service area boundary 41 or receives a connection request from another mobile terminal 1 without repeatedly broadcasting the connection request. Wait for Therefore, battery consumption of the mobile terminal 1 storing the rescue request message in the rescue request storage unit 109 can be suppressed. As described above, according to the present embodiment, the rescue request message created by the mobile terminal 1 located outside the service area 42 of the base station 4 can be rescued more reliably at low cost without imposing a load on the surrounding environment. The center device 2 can be notified.

  Further, in the present embodiment, when the portable terminal 1 storing the rescue request message in the rescue request storage unit 109 transmits the rescue request message to the rescue center device 2, the rescue request message is stored in the rescue request memory. Delete from the part 109. For this reason, the rescue request message that has been reported to the rescue center device 2 can be prevented from further spreading from the mobile terminal 1.

  In the present embodiment, the mobile terminal 1 stores a rescue request message in the rescue request storage unit 109 when the mobile terminal 1 is located in the area boundary 41 or outside the area 42 of the base station 4. Only when there is no connection, it repeatedly broadcasts connection requests. When the mobile station 1 is located in the central area 40 of the base station 4, another mobile terminal 1 located at a distance that allows ad-hoc communication with the mobile terminal 1 is located within the base station 4 (the central area 40 or the boundary area). 41), and it is considered that communication with the rescue center device 2 is possible by infrastructure communication, and therefore repeated transmission of connection requests is not performed. For this reason, it is possible to prevent the battery from being consumed unnecessarily.

  Further, in the present embodiment, the portable terminal 1 has a case where the rescue request message received from another portable terminal 1 by ad hoc communication is posted in the handled list 1100 stored in the handled list storage unit 110. The rescue request message is discarded without being stored in the rescue request storage unit 109, and a response notification message indicating that the rescue request message has been handled by the rescue team is sent to the portable terminal 1 that has transmitted the rescue request message. Send. In response to this, the portable terminal 1 that has transmitted the rescue request message posts this rescue request message in the corresponding list 1100 stored in the corresponding list storage unit 110 and deletes it from the rescue request storage unit 109. To do. Therefore, according to the present embodiment, it is possible to prevent the rescue request message already handled by the rescue team from spreading to the plurality of mobile terminals 1.

  Further, in the present embodiment, the mobile terminal 1 may receive a rescue request message from another mobile terminal 1 when the mobile terminal 1 is located in the area boundary 41 of the base station 4. If a predetermined time has elapsed since the acquisition of the corresponding list 1100 stored in the corresponding list storage unit 110 when a certain area has been entered, the corresponding list distribution device 3 via the base station 4 The latest corresponding list 1100 is acquired, and the registered content in the corresponding list storage unit 110 is updated to the latest corresponding list 1100. Therefore, according to the present embodiment, it is possible to more efficiently prevent the rescue request message already handled by the rescue team from spreading to the plurality of mobile terminals 1 without frequently updating the supported list. it can.

  In addition, this invention is not limited to said embodiment, Many deformation | transformation are possible within the range of the summary.

  For example, in the above embodiment, the mobile terminals 1 communicate with each other by the ad hoc communication of the wireless LAN without going through the base station 4, but the present invention is not limited to this. The mobile terminals 1 may communicate with each other without going through the base station 4 by other short-range wireless communication such as Bluetooth (registered trademark).

  Moreover, in said embodiment, the portable terminal 1 is communicating with the rescue center apparatus 2 and the corresponding list distribution apparatus 3 by infrastructure communication of wireless LAN. However, the present invention is not limited to this. The portable terminal 1 may communicate with the rescue center device 2 and the supported list distribution device 3 by other wireless communication such as a 3G line or PHS (Personal Handy-phone System).

  In the above embodiment, the mobile terminal 1 starts the rescue request support process (see FIG. 7) when the mobile terminal 1 moves from the central area 40 of the base station 4 to the regional boundary 41. When the portable terminal 1 moves from the area boundary 41 of the base station 4 to the area center 40, the rescue request support process is completed. However, the present invention is not limited to this. For example, when the mobile terminal 1 is located in the area (the central area 40 or the boundary area 41) of the base station 4, it receives an instruction to start the rescue request support process from the operator, or is placed at a predetermined entrance The rescue request support process is started by receiving a rescue request support process start signal from the aircraft, and an end instruction of the rescue request support process is received from the operator, or a rescue request support process is performed from a transmitter installed at a predetermined exit. The rescue request support process may be terminated by receiving the end signal. Also, when a rescue request operation is performed when the mobile terminal 1 is located in the central area 40 of the base station 4, a rescue request message is created, and the rescue request message is sent to the infrastructure communication control unit 104 and You may make it transmit to the rescue center apparatus 2 via the base station 4 by the infrastructure communication using the wireless LAN interface part 100. FIG.

  In the above embodiment, the emergency notification system that notifies the rescue center device 2 of the rescue request message created by the mobile terminal 1 located outside the service area 42 of the base station 4 has been described. However, the present invention is not limited to this. The present invention can be widely applied to a reporting system that reports predetermined information created by the mobile terminal 1 located outside the service area 42 of the base station 4 to a predetermined reporting destination via the base station 4.

  DESCRIPTION OF SYMBOLS 1, 1-1-1-4: Portable terminal, 2: Rescue center apparatus, 3: Corresponding list distribution apparatus, 4: Base station, 5: WAN, 40: Central area within area, 41: Border area within area, 42: Out of service area, 100: Wireless LAN interface unit, 101: Man-machine interface unit, 102: GPS reception unit, 103: Current location calculation unit, 104: Infrastructure communication control unit, 105: Ad hoc communication control unit, 106: Within range determination unit, 107 A connection request processing unit, 108: a user information storage unit, 109: a rescue request storage unit, 110: a corresponding list storage unit, 111: a rescue request creation unit, 112: a rescue request notification unit, 113: a corresponding list acquisition unit, 114: Rescue request relay section 115: Corresponding notification section 116: Main control section

Claims (6)

A notification method for reporting predetermined information created by a wireless communication terminal located outside the base station area to a predetermined report destination via at least one other wireless communication terminal,
A wireless communication terminal located outside the base station is
Wait for the connection request to be received. If the connection request is received, a response is returned, a communication path is established with the connection request transmission source, and the predetermined information is transmitted to the connection request transmission source. And
The other wireless communication terminal is:
When the connection request is repeatedly broadcast periodically or irregularly and a response to the connection request is received, a communication path is established with the response transmission source, and the response transmission source As well as receiving
If the own radio communication terminal is within range of the base station, the received predetermined information is transmitted to the predetermined report destination via the base station,
If the own radio communication terminal is out of range of the base station, it stops repeatedly sending the connection request, waits for the connection request to be received, and if it receives the connection request, returns a response to send the connection request. A communication method is established in which a communication path is established with the source of the connection and the predetermined information is transmitted to the source of the connection request. A wireless communication terminal capable of wireless communication with other wireless communication terminals without going through a base station,
Within-range determination means for determining whether or not the own wireless communication terminal is located within the range of the base station,
Information creating means for creating predetermined information according to an operator's instruction;
Information storage means for storing the predetermined information created by the information creation means or received from the other wireless communication terminal;
A connection request transmitting means for repeatedly broadcasting a connection request periodically or irregularly when the predetermined information is not stored in the information storage means;
When the predetermined information is stored in the information storage means, if it is determined by the area determination means that the own wireless communication terminal is located within the area of the base station, via the base station A reporting means for transmitting the predetermined information to a predetermined reporting destination;
When the predetermined information is stored in the information storage means, if the area determination means determines that the own wireless communication terminal is located outside the area of the base station, the other wireless communication terminal A relay unit that monitors the connection request broadcast from the other wireless communication terminal and transmits the predetermined information to the other wireless communication terminal in response to the connection request received from the other wireless communication terminal. A wireless communication terminal characterized by the above. The wireless communication terminal according to claim 2,
The wireless communication terminal further comprising: a deletion unit that deletes the predetermined information from the information storage unit when the predetermined information is transmitted to the predetermined notification destination by the notification unit. The wireless communication terminal according to any one of claims 2 to 3,
Reported information storage means for storing information reported to the predetermined report destination;
When the predetermined information received from the other wireless communication terminal is stored in the notified information storage unit, a notification that the predetermined information has been notified is transmitted to the other wireless communication terminal. A reported notification means,
When the notification that the notification has been made is received from the other wireless communication terminal that is the transmission destination of the predetermined information transmitted by the relay means, the predetermined information is stored in the notified information storage means. Adding and deleting means for adding to and deleting from the information storage means;
A discarding unit for discarding the predetermined information without storing it in the information storage unit when the predetermined information received from the other wireless communication terminal is stored in the reported information storage unit; A wireless communication terminal further comprising: The wireless communication terminal according to claim 4,
When it is determined that the wireless communication terminal is located within the area of the base station by the area determination means, the notified information is acquired from a predetermined server via the base station, and the notification A wireless communication terminal, further comprising reported information acquisition means for storing in the completed information storage means. A computer having a wireless communication function capable of wireless communication with other wireless communication terminals without going through a base station,
In-range determination means for determining whether or not the own computer is located within the range of the base station,
Information creation means for creating predetermined information in accordance with instructions from the operator;
Information storage means for storing the predetermined information created by the information creation means or received from the other wireless communication terminal;
A connection request transmission means for repeatedly sending a connection request periodically or irregularly when the predetermined information is not stored in the information storage means;
When the predetermined information is stored in the information storage means, if the local area determination means determines that the own computer is located within the area of the base station, the predetermined information is transmitted via the base station. A notification means for transmitting the predetermined information to a notification destination; and when the predetermined information is stored in the information storage means, if the local computer is located outside the area of the base station by the area determination means If determined, the connection request broadcast from the other wireless communication terminal is monitored, and the predetermined request is sent to the other wireless communication terminal in response to the connection request received from the other wireless communication terminal. A program characterized by functioning as a relay means for transmitting the information.

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