JP2016167750A - Communication terminal device, communication system, and communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To communicate with another person located near a predetermined person.SOLUTION: A first communication unit communicates with a first communication terminal device by means of a first communication mode. A second communication unit communicates with a second communication terminal device by means of a second communication mode capable of communicating at a longer distance than that of the first communication mode. A retrieval instruction notification unit 118a notifies, via the second communication unit, the second communication terminal device of a retrieval instruction, including an identifier for identifying the first communication terminal device, which instructs to retrieve the first communication terminal device by means of the first communication mode.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a communication terminal device, a communication system, and a communication method used by a member who performs dangerous work such as fire fighting activities.

  A system has been proposed in which a biometric sensor is attached to the body of a fire brigade, and the biometric information of the crew is wirelessly sent to the command center to monitor the safety of the fire brigade in real time. For example, if a member's heart rate is abnormal, it can be determined that the member is in a dangerous state.

  Patent Document 1 discloses a portable terminal that makes an emergency call to surrounding portable terminals when an abnormality of the user's human body is detected from a measurement value of a biological information sensor in an emergency rescue support system.

JP 2003-109160 A

  If a member is in a place where radio waves from GPS satellites do not reach, such as an underground fire site, even if the member's biometric information is received wirelessly, it can be understood that the member is in a dangerous state. It is difficult to specify the position. Therefore, it is difficult to determine which member to rescue.

  This invention is made | formed in view of such a condition, The objective is to provide the technique which communicates with another person close to a predetermined person.

  In order to solve the above-described problem, a communication terminal device (10) according to an aspect of the present invention uses a second communication terminal device (2) by a second communication method capable of communication at a longer distance than the first communication method. 10) including the identifier for identifying the second communication unit (132) that communicates with the first communication terminal device (10) that communicates with the first communication method. Search instruction notification for notifying the second communication terminal device (10) via the second communication unit (132) of a search instruction for instructing to search the communication terminal device (20) by the first communication method Part (118a).

  Another aspect of the present invention is also a communication terminal device (10). The communication terminal device (10) includes a first communication unit (131) that communicates with the first communication terminal device (20) by the first communication method, and communication at a longer distance than the first communication method. A second communication unit (132) that communicates with the second communication terminal device (10) by a second communication method capable of performing the above, and an identifier for identifying the first communication terminal device (20) A search instruction for instructing to search for the first communication terminal device (20) identified by the first communication method is sent from the second communication terminal device (10) to the second communication unit (132). And a search unit (114) that searches for the first communication terminal device (20) via the first communication unit (131).

  Yet another aspect of the present invention is a communication system (1). The communication system (1) is a communication system including a first communication terminal device (20), a second communication terminal device (10), and a management device (30), wherein the second communication terminal The device (10) includes a second communication unit (132) that communicates with the management device (30) by a second communication method that enables communication at a longer distance than the first communication method. When the management device (30) acquires a trigger signal from the second communication terminal device (10) via the communication unit (331) that performs communication by the second communication method and the communication unit (331). A first communication terminal device (20) identified by the identifier, including an identifier for identifying the first communication terminal device (20) that performs communication by the first communication method, according to the first communication method. A search instruction notification unit (316) for notifying another second communication terminal device (10) via the communication unit (331) a search instruction for instructing a search.

  Yet another embodiment of the present invention is a communication method. This method includes an identifier for identifying a first communication terminal device (20) that performs communication by a first communication method, and includes the first communication terminal device (20) identified by the identifier as the first communication. A search instruction notification step of notifying the second communication terminal device (10) of a search instruction for instructing to search by a second communication method using a second communication method capable of communication at a longer distance than the first communication method. Prepare.

  Yet another embodiment of the present invention is also a communication method. This method is a communication method in a communication system (1) comprising a first communication terminal device (20), a second communication terminal device (10), and a management device (30), The communication terminal device (10) includes a second communication step of communicating with the management device (30) by a second communication method capable of communicating at a longer distance than the first communication method. When the management device (30) acquires a trigger signal from the second communication terminal device (10) according to the communication step of performing communication according to the second communication method and the second communication method, the management device (30) An instruction to search for the first communication terminal device (20) identified by the identifier, including an identifier for identifying the first communication terminal device (20) performing communication by the communication method, is provided. A search instruction notifying unit (316) for notifying another search terminal device (10) of a search instruction by the second communication method.

  It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

  According to the present invention, it is possible to communicate with another person near a predetermined person.

It is a figure which shows the structure of the dangerous work assistance system which concerns on embodiment of this invention. It is a figure which shows the structure of the biosensor apparatus which concerns on embodiment. 2 is a diagram illustrating a configuration of a terminal device according to Embodiment 1. FIG. 2 is a diagram illustrating a configuration of a management device according to Embodiment 1. FIG. It is a flowchart for demonstrating the pairing process in a preparation stage. It is a flowchart which shows the flow of the basic process of a dangerous work assistance system. 4 is a flowchart for explaining a rescue request method using the dangerous work support system according to the first embodiment. It is a flowchart for demonstrating the rescue request method using a dangerous work assistance system based on the modification of Embodiment 1. FIG. It is a figure which shows the structure of the terminal device which concerns on Embodiment 2. FIG. 6 is a diagram illustrating a configuration of a management device according to Embodiment 2. FIG. 10 is a flowchart for explaining a rescue request method using the dangerous work support system according to the second embodiment. It is a flowchart for demonstrating the rescue request method which uses the dangerous work assistance system based on the modification of Embodiment 2.

  Embodiments of the present invention relate to a dangerous work support system for supporting fire fighting activities of a fire brigade composed of a plurality of members. In the following description, fire fighting activities will be described as an example. However, fire fighting activities are an example of dangerous work, and can be applied to general dangerous work performed in cooperation by a plurality of members. For example, the present invention can be applied to rescue work and recovery work for natural disasters such as earthquakes and landslides. It can also be applied to dangerous work such as mine development.

  FIG. 1 is a diagram showing a configuration of a dangerous work support system 1 according to an embodiment of the present invention. The dangerous work support system 1 includes a management device 30 installed in the command center 3, a biosensor device 20 worn by each member, and a terminal device 10 held or carried by each member. Hereinafter, an example of three members will be described in this specification.

  The biosensor device 20 is attached to the body of a member and detects biometric information such as heartbeat, body temperature, posture, and the like. There are various types of biosensor devices 20 such as a type that is attached to the body with a gel pad, a type that is wrapped around the arm or foot with a band, and a type that is attached to the inside of clothes. The biosensor device 20 and the terminal device 10 are connected by short-range wireless communication. In this specification, an example in which Bluetooth (registered trademark) is used as short-range wireless communication will be described. Note that near field communication other than Bluetooth (registered trademark), such as wireless LAN and infrared communication, may be used as near field communication.

  The terminal device 10 uses a portable wireless portable radio for business use. The management apparatus 30 is installed in a place that becomes the command center 3 such as in a fire department or a fire command car. The management device 30 can be composed of a PC connected to a business radio base station radio. Note that a general mobile phone network may be used without using the commercial radio. In that case, the terminal device 10 can be configured by a general mobile terminal device such as a smartphone or a feature phone, and the management device 30 can be configured by a PC connected to the IP network. In the following description, an example of using commercial radio is assumed.

  FIG. 2 is a diagram illustrating a configuration of the biosensor device 20 according to the embodiment. The biosensor device 20 includes a control unit 21, a storage unit 22, a communication unit 23, a sensor unit 24, and an operation unit 25. The control unit 21 includes a biometric information acquisition unit 211, a biometric information notification unit 212, a mode control unit 213, and a pairing management unit 214. The function of the control unit 21 can be realized by cooperation of hardware resources and software resources, or only by hardware resources. Processors, ROM, RAM, and other LSIs can be used as hardware resources. Firmware and other programs can be used as software resources. In the functional block of the control unit 21 in FIG. 2, only functional blocks related to the process to be noted in the embodiment are drawn.

  The storage unit 22 includes a storage medium such as a nonvolatile semiconductor memory. The communication unit 23 includes a short-range wireless communication unit 231. It does not have mid-range or long-distance wireless communication functions such as commercial radio and mobile phone networks. The sensor unit 24 includes a heart rate sensor, a body temperature sensor, a triaxial acceleration sensor, and the like, and detects biological information such as a heart rate, a body temperature, and a posture of a member who is attached. The sensor unit 24 outputs the detected biological information to the control unit 21.

  The biological information acquisition unit 211 acquires biological information detected from the sensor unit 24. The biological information notification unit 212 notifies the terminal device 10 that is paired regularly (for example, every few seconds) with the acquired biological information via the short-range wireless communication unit 231. The mode control unit 213 and the pairing management unit 214 will be described later. The configuration of the biosensor device 20 shown in FIG. 2 is common to the first and second embodiments described below.

(Embodiment 1)
FIG. 3 is a diagram illustrating a configuration of the terminal device 10 according to the first embodiment. The terminal device 10 includes a control unit 11, a storage unit 12, a communication unit 13, a display unit 14, an operation unit 15, and a voice input / output unit 16. The control unit 11 includes a biometric information acquisition unit 111, a biometric information notification unit 112, a biometric information determination unit 113, a search unit 114, a pairing management unit 115, a communication destination determination unit 116, an electric field strength detection unit 117, a rescue request notification unit 118, and A mode switching instruction notification unit 119 is included. The function of the control unit 11 can also be realized by cooperation of hardware resources and software resources, or only by hardware resources. In the functional blocks of the control unit 11 in FIG. 3, only functional blocks related to the process of interest in the first embodiment are drawn.

  The storage unit 12 includes a storage medium such as a nonvolatile semiconductor memory. The storage unit 12 includes a biosensor ID holding unit 121. Also in the functional blocks of the storage unit 12 in FIG. 3, only functional blocks related to the process of interest in the first embodiment are drawn. The biosensor ID holding unit 121 holds identification information of a plurality of biosensor devices 20 respectively worn by a plurality of members belonging to a team that jointly performs disaster relief activities. The voice input / output unit 16 includes a microphone and a speaker.

  The communication unit 13 includes a short-range wireless communication unit 131 and a commercial wireless communication unit 132. The short-range wireless communication unit 131 is used for communication with the biosensor device 20, and the business wireless communication unit 132 is used for communication with the management device 30 or another terminal device 10.

  FIG. 4 is a diagram illustrating a configuration of the management apparatus 30 according to the first embodiment. The management device 30 includes a control unit 31, a storage unit 32, a communication unit 33, a display unit 34, an operation unit 35, and a voice input / output unit 36. The control unit 31 includes a biological information acquisition unit 311, a display control unit 312, a rescue request acquisition unit 313, and a communication destination determination unit 317. The function of the control unit 31 can also be realized by cooperation of hardware resources and software resources, or only by hardware resources. Also in the functional block of the control unit 31 in FIG. 4, only functional blocks related to the process to be noticed in the first embodiment are illustrated.

  The storage unit 32 includes a storage medium such as a nonvolatile semiconductor memory. The storage unit 32 includes a device information holding unit 321. Also in the functional blocks of the storage unit 32 in FIG. 4, only functional blocks related to the process focused on in the first embodiment are drawn. The device information holding unit 321 holds a member name, identification information of the terminal device 10 carried by the member, and identification information of the biosensor device 20 worn by the member in advance. The terminal device 10 and the biosensor device 20 used by each member may be fixed, or the terminal device 10 and the biosensor device 20 used may be dynamically changed. The voice input / output unit 36 includes a microphone and a speaker.

  Hereinafter, the operations of the terminal device 10, the biosensor device 20, and the management device 30 will be specifically described with reference to FIGS. First, the preparation process before dispatch to the disaster site will be described. Each member is a biometric sensor device 20 which is a Bluetooth (registered trademark) slave device (hereinafter simply referred to as a slave device) attached to the member, and a Bluetooth (registered trademark) master device (hereinafter simply referred to as a master device) carried by the member. It is necessary to pair the terminal device 10 that is). The biosensor device 20 has two modes: a normal mode that does not respond even when a pairing search is made from the master, and a pairing mode that responds to a pairing search from the master. In the normal mode, in order to ensure privacy and prevent unauthorized access, the presence of self is not disclosed for searches from the master machine.

  FIG. 5 is a flowchart for explaining the pairing process in the preparation stage. When member A operates the operation unit 25 of the biosensor device 20a to instruct the transition to the pairing mode, the mode control unit 213 of the biosensor device 20a shifts the own mode from the normal mode to the pairing mode ( S01A). When member A operates the operation unit 15 of the terminal device 10a to instruct the start of pairing search, the search unit 114 starts searching for a device that can be paired (S02A). By pairing search, a pairing-connectable device located within the range of short-range wireless communication is detected. Note that a device in the pairing mode is detected, and a device in the normal mode is not detected.

  When member A operates the operation unit 15 of the terminal device 10a to select the biosensor device 20a, the pairing management unit 115 determines the selected biosensor device 20a as a pairing device (S03A), and the biosensor Pairing with the device 20a is established (S04A). Similarly, the pairing management unit 214 of the biosensor device 20a establishes pairing with the terminal device 10a (S04A). When pairing is established, the mode control unit 213 of the biosensor device 20a shifts its own mode from the pairing mode to the normal mode (S05A). After the pairing is established, the pairing management unit 115 of the terminal device 10a notifies the management device 30 of the identification information of the terminal device 10a, the identification information of the biosensor device 20a, and the pairing information including the member name (S06A). .

  In the storage unit 12 of the terminal device 10a and the storage unit 22 of the biosensor device 20a, identification information of paired devices is registered. Thereby, when the power supply of the terminal device 10a and the biosensor device 20a is activated after the next time, both automatically establish pairing. Similarly to the member A, the member B and the member C also pair the terminal devices 10b and c with the biosensor devices 20b and c, respectively. When acquiring the pairing information from the terminal devices 10a, 10b, 10c, the control unit 31 of the management device 30 registers it in the device information holding unit 321 (S07). In addition, when the terminal device 10 and the biosensor device 20 used by each member are fixed and operated, the processes in steps S06 and S07 are omitted.

  Next, the processing at the time of fire fighting at the disaster site will be explained. The biosensor devices 20a to 20c are mounted on the bodies of the members A to C, and the members A to C hold the terminal devices 10a to 10c. The biosensor devices 20a to 20c and the terminal devices 10a to 10c are paired by short-range wireless communication. The terminal devices 10a to 10c are master devices, and the biosensor devices 20a to 20c are slave devices.

  FIG. 6 is a flowchart showing the flow of basic processing of the dangerous work support system 1. The biometric information acquisition unit 211 of the biosensor device 20 a acquires the biometric information of the member A from the sensor unit 24. The biometric information notifying unit 212 notifies the acquired biometric information to the terminal device 10a via short-range wireless communication (S11A).

  The biological information acquisition unit 111 of the terminal device 10a that is paired with the biological sensor device 20a acquires biological information from the biological sensor device 20a via short-range wireless communication. The biometric information notification unit 112 notifies the acquired biometric information to the management device 30 of the command center 3 via the business radio (S12A). Similarly, the biological information of the members B and C is also notified to the management device 30 of the command center 3.

  The biometric information acquisition unit 311 of the management device 30 acquires the biometric information of each member A to C via the business radio. The display control unit 312 causes the display unit 34 to display the acquired biological information of each member A to C (S13). The conductor in the command center 3 monitors the biological information of each member A to C displayed on the display unit 34 and grasps the state of each member A to C. The conductor conducts a specific command based on the grasped status of each member A to C. For example, when the heart rate of the member A is abnormally increased, the member A is instructed to stop the firefighting activity and retreat. This instruction is performed by voice communication from the voice input / output unit 36 to the terminal device 10a carried by the fire brigade A via business wireless communication.

  FIG. 7 is a flowchart for explaining a rescue request method using the dangerous work support system 1 according to the first embodiment. The biometric information acquisition unit 211 of the biosensor device 20 a acquires the biometric information of the member A from the sensor unit 24. The biometric information notifying unit 212 notifies the acquired biometric information to the terminal device 10a via short-range wireless communication (S21A).

  The biometric information acquisition unit 111 of the terminal device 10a paired with the biosensor device 20a acquires the biometric information of the member A from the biosensor device 20a via short-range wireless communication. The biological information determination unit 113 determines whether or not the acquired biological information of the member A is normal. For example, it is determined whether or not the heart rate is within the normal range. If it is not within the normal range, it is determined as abnormal. If the biological information is abnormal, it can be estimated that member A is in a dangerous state.

  The biometric information determination process may be performed by the biosensor device 20a. In that case, flag information indicating normality / abnormality is added to the biological information transmitted from the biological sensor device 20a. When the biometric information determination process is performed by the biosensor device 20a, the biometric information determination unit 113 of the terminal device 10a can be omitted.

  When it is determined that the biometric information of the member A is abnormal, the mode switching instruction notifying unit 119 of the terminal device 10a pairs the modes of the biosensor devices 20b and 20c to the other terminal devices 10b and 10c via business radio. A mode switching instruction for instructing switching to the ring mode is sent (S22A). When the mode switching instruction notifying unit 119 of the terminal device 10b acquires the mode switching instruction from the terminal device 10a via the business radio, the mode switching instruction is notified to the biosensor device 20b via the short-range wireless communication (S23B). . When the mode control unit 213 of the biosensor device 20b acquires the mode switching instruction from the terminal device 10b via the short-range wireless communication, the mode control unit 213 shifts from the normal mode to the pairing mode (S24B).

  The terminal device 10c and the biosensor device 20c operate similarly. As a result, the biosensor devices 20b and 20c can be detected from the terminal device 10a. Even in the normal mode, when it is set to return a response to a pairing search from another device, the processes of steps S22A, S23B, S23C, S24B, and S24C are omitted.

  The search unit 114 of the terminal device 10a starts a pairing search for searching for devices that can be connected by short-range wireless communication (S25A). As a result of the search, the biosensor device 20b worn by the nearby member B is detected as a pairing candidate at a position where the short-distance wireless communication with the terminal device 10a held by the member A is possible. On the other hand, the biosensor device 20c worn by the member C who is not close to the terminal device 10a held by the member A, that is, the position where the member C not nearby is not detected is not detected as a pairing candidate (S26A). For example, when using a Class 2 Bluetooth (registered trademark), communication is impossible when the distance is about 10 m or more. The search unit 114 acquires the identification information of the searched biosensor device 20b from the biosensor device 20b via the short-range wireless communication unit 131 (S26A).

  The rescue request notification unit 118 performs a rescue request including information indicating that the member A is in a dangerous state and information acquired by the search unit 114 (identification information (ID = B) in FIG. 3). The management device 30 is notified via the wireless communication (S27A).

  The rescue request acquisition unit 313 of the management device 30 acquires a rescue request from the terminal device 10a via business wireless communication. The communication destination determination unit 317 acquires the identification information of the terminal device 10 associated with the identification information of the biosensor device 20 acquired by the rescue request acquisition unit 313 based on the device information held in the device information holding unit 321. To do. The display control unit 312 displays on the display unit 34 that the member A is in a dangerous state and that the member B is in the vicinity. The display control unit 312 causes the display unit 34 to display the device information of the member B acquired from the device information holding unit 321. The conductor who sees the screen on which they are displayed tells member B that member A who is in a dangerous state is nearby and rescues it. For example, the voice input / output unit 16 gives a voice instruction to the terminal device 10b via business wireless communication (S28).

  When a plurality of biosensor devices 20 that can be connected to the terminal device 10a are detected by short-range wireless communication based on the pairing search in step S26A, the electric field intensity detection unit 117 transmits from the connectable biosensor device 20. The radio wave intensity of the response signal is detected. It can be estimated that the stronger the radio wave intensity is, the closer to the terminal device 10a. In the normal mode, when it is set to return a response to a pairing search from another device, the processes in steps S22A, S23B, S23C, S24B, and S24C are omitted. In this case, the biosensor device 10a worn by itself is excluded from communication destination candidates.

  Further, the rescue request notification unit 118 may notify the identification information of all the biosensor devices 20 detected by the pairing search and the respective radio wave intensities as the rescue request destination information. The conductor of the command center 3 can determine the rescue request destination based on the information on the radio wave intensity.

  Note that, in the present embodiment, as described above, the terminal device a performs processing based on the radio field strength by the short-range wireless communication from each biosensor device 20 instead of the radio field strength by the commercial wireless communication from each terminal device 10. Is doing. This is because commercial wireless communication and mobile phone communication have high output power unlike short-range wireless communication, so it is difficult to estimate the distance to other members at the same site based on the radio field strength. . In addition, when the business wireless communication or the mobile phone communication is a communication method via a base station or a relay station, the radio wave intensity is the radio wave intensity from the base station or the relay station. This is because the distance cannot be estimated.

  Further, when a plurality of biometric sensor devices 20 that can be connected to the terminal device 10a are detected based on the pairing search in the above step S26A, the pairing management unit 115 of the terminal device 10a detects all the detected Pairing may be established with the biosensor device 20. In the case of a design in which only one-to-one pairing is permitted, the terminal device 10a and the detected biosensor device 20 temporarily cancel the pairing so far, and the terminal device 10a and the detected biosensor device 20 are between. Establish pairing.

  The biological information acquisition unit 111 of the terminal device 10a acquires biological information from the newly paired biological sensor device 20. The biological information determination unit 113 determines whether or not the value indicated by the biological information is in the danger zone. When the value indicated by the biological information is in the danger area, the terminal device 10 held by the member wearing the biological sensor device 20 is excluded from the rescue request destination. That is, the rescue request notification unit 118 excludes the terminal device 10 held by a member whose biometric information indicates a danger area from the rescue request notification destination.

  The pairing management unit 115 of the terminal device 10a cancels the pairing with the biosensor device 20 and establishes a pairing with another biosensor device 20 that can be connected to the terminal device 10a by short-range wireless communication. This process is performed for all detected biosensor devices 20. When the determination of the biometric information acquired from all the detected biosensor devices 20 is completed, the terminal device 10a and the detected biosensor device 20 return the pairing device to the original state.

  FIG. 8 is a flowchart for explaining a rescue request method using the dangerous work support system 1 according to a modification of the first embodiment. The processing up to step S26A in the flowchart of FIG. 8 is the same as the flowchart of FIG. In the modification, the storage unit 12 of the terminal device 10 is also provided with a device information holding unit in the same manner as the storage unit 32 of the management device 30.

  In the modification, the rescue request is made to the member B directly from the terminal device 10a without going through the command center 3. That is, the rescue request notifying unit 118 of the terminal device 10a notifies the rescue request to the terminal device 10b held by the member B via business wireless communication based on the pairing search result (S29A). Since the terminal device 10b is within the radio wave range of the short-range wireless communication, the rescue request may be notified through the short-range wireless communication instead of the commercial wireless communication. When the display unit is provided in the biosensor device 20b, the rescue request notification unit 118 may notify the biosensor device 20b of the rescue request via short-range wireless communication.

  When a plurality of biosensor devices 20 that can be connected to the terminal device 10a are detected by short-range wireless communication based on the pairing search in step S26A, the communication destination determination unit 116 includes a plurality of connectable biosensor devices 20. Among these, the terminal device 10 held by the member wearing the biosensor device 20 having the strongest radio wave intensity is determined as the rescue request destination. There may be a plurality of rescue request destinations. In that case, the communication destination determination unit 116 identifies the number of biosensor devices 20 set in order of increasing radio wave intensity among the connectable biosensor devices 20, and wears the identified biosensor devices 20. A plurality of terminal devices 10 held by a plurality of members are determined as rescue request destinations.

  The communication destination determination unit 116 also includes the terminal device 10 held by a member wearing the biosensor device 20 having the identification information registered in the device information holding unit among the pairing candidates detected in step S26A. Only rescue request candidates. That is, the rescue request notification unit 118 excludes the terminal device 10a held by members other than the members belonging to the same team from the rescue request notification target. Even if the same type of biosensor device 20 is detected, in the case of the biosensor device 20 worn by a member of another unit, the terminal device 10 held by the member is excluded from the rescue request destination.

  As described above, according to the first embodiment, when a certain member falls into a dangerous state, the dangerous state is determined by identifying a nearby member using pairing search in short-range wireless communication. It is possible to inform nearby members smoothly that they have fallen. In addition, by detecting the radio field intensity in short-range wireless communication, it is possible to identify a member who is estimated to be closest to a member in a dangerous state. Even when working at a site where GPS radio waves do not reach, it is possible to identify a member estimated to be closest.

(Embodiment 2)
FIG. 9 is a diagram illustrating a configuration of the terminal device 10 according to the second embodiment. The control unit 11 of the terminal device 10 according to Embodiment 2 includes a biological information acquisition unit 111, a biological information notification unit 112, a biological information determination unit 113, a search unit 114, a pairing management unit 115, an electric field strength detection unit 117, and a search instruction. A notification unit 118a, a mode switching instruction notification unit 119, a search result notification unit 1110, and a presentation control unit 1111 are included. The configuration other than the control unit 11 is the same as the configuration of the management apparatus 30 according to the first embodiment shown in FIG.

  FIG. 10 is a diagram illustrating a configuration of the management apparatus 30 according to the second embodiment. The control unit 31 of the management device 30 according to the second embodiment includes a biological information acquisition unit 311, a display control unit 312, a search result acquisition unit 313 a, a biological information determination unit 314, a mode switching instruction notification unit 315, and a search instruction notification unit 316. Including. The configuration other than the control unit 31 is the same as the configuration of the management apparatus 30 according to the first embodiment shown in FIG.

  FIG. 11 is a flowchart for explaining a rescue request method using the dangerous work support system 1 according to the second embodiment. The biometric information acquisition unit 211 of the biosensor device 20 a acquires the biometric information of the member A from the sensor unit 24. The biological information notification unit 212 notifies the acquired biological information to the terminal device 10a via short-range wireless communication (S31A).

  The biometric information acquisition unit 111 of the terminal device 10a paired with the biosensor device 20a acquires the biometric information of the member A from the biosensor device 20a via short-range wireless communication. The biometric information notifying unit 112 notifies the management unit 30 of the command center 3 of the acquired biometric information of the member A via business wireless communication (S32A). The biometric information acquisition unit 311 of the management device 30 acquires the biometric information of the member A from the terminal device 10a via business wireless communication. The biometric information determination unit 314 determines whether or not the acquired biometric information of the member A is normal.

  When it is determined that the biological information of the member A is abnormal, the mode switching instruction notifying unit 315 of the management device 30 switches the mode of the biological sensor device 20a from the normal mode to the pairing mode to the terminal device 10a via the business radio. A mode switching instruction is issued (S33). When the mode switching instruction notifying unit 119 of the terminal device 10a obtains the mode switching instruction from the management apparatus 30 via the business radio, the mode switching instruction notifying unit 119 notifies the biometric sensor apparatus 20a via the short-range wireless communication (S34A). . When the mode control unit 213 of the biosensor device 20a acquires the mode switching instruction from the terminal device 10a via the short-range wireless communication, the mode control unit 213 shifts from the normal mode to the pairing mode (S35A). Even in the normal mode, when it is set to return a response to a pairing search from another device, the processes of steps S33, S34A, and S35A are omitted.

  After the mode of the biosensor device 20a shifts to the pairing mode, the search instruction notification unit 316 of the management device 30 sends the members to the terminal devices 10b and c worn by the members B and C via the business wireless communication. A search instruction is issued to instruct the biosensor device 20a worn by A to search for pairing by short-range wireless communication (S36). Identification information (ID = A) of the biosensor device 20a to be searched is added to this search instruction.

  When the search unit 114 of the terminal device 10b acquires a search instruction from the management device 30, the search unit 114 starts a pairing search for searching for devices that can be connected by short-range wireless communication (S37B). Since the terminal device 10b held by the member B is within a distance capable of short-range wireless communication with the biosensor device 20a, the biosensor device 20a to be searched is detected as a pairing candidate (S38B).

  The presentation control unit 1111 displays on the display unit 14 that a dangerous member A is nearby. As a result, it is possible to make member B recognize that there is a member A that needs to be rescued in a range where radio waves of short-range wireless communication reach. The presentation control unit 1111 may cause the voice input / output unit 16 to output a sound indicating that the dangerous member A is nearby. The search result notification unit 1110 notifies the management device 30 of a search result including a message that the detection of the biosensor device 20a to be searched is successful (S39B).

  Similarly to the terminal device 10a, the search unit 114 of the terminal device 10c starts a pairing search for searching for devices that can be connected by short-range wireless communication when acquiring a search instruction from the management device 30 (S37C). Since the terminal device 10c held by the member C is not in a radio wave range capable of short-range wireless communication with the biosensor device 20a, the biosensor device 20a to be searched is not detected as a pairing candidate (S38C). The search result notifying unit 1110 notifies the management device 30 of a search result including a message indicating that the detection of the biosensor device 20a to be searched has failed (S39C).

  The search result acquisition unit 313a of the management device 30 acquires search results from the terminal devices 10b and 10c via business wireless communication. The display control unit 312 causes the display unit 34 to display that the member B is in the vicinity of the member A in a dangerous state. Further, the display control unit 312 acquires the device information of the member B from the device information holding unit 321 and displays the information on the display unit 34. The conductor who sees the screen on which they are displayed tells the member B that the dangerous member A is nearby and instructs the member B to rescue him. For example, the voice input / output unit 16 gives a voice instruction to the terminal device 10b via business wireless communication (S399).

  In step S38B described above, the electric field strength detection unit 117 of the terminal device 10b may detect the radio field strength of the response signal transmitted from the biosensor device 20a detected based on the pairing search. The search result notification unit 1110 notifies the management device 30 of a message indicating that the biosensor device 20a worn by the member A has been successfully detected and a search result including the detected radio wave intensity via the business wireless communication. . When the biosensor device 20a attached to the member A is detected by the plurality of terminal devices 10, the search result including the radio wave intensity is reported to the command center 3, so that the commander determines which member of the member A It can be estimated based on the radio field strength whether it is closest.

  Moreover, after said step S38B, the pairing management part 115 of the terminal device 10b may establish pairing with the biosensor apparatus 20a with which the detected member A is equipped. In the case of a design in which only one-to-one pairing is permitted, the terminal device 1ba and the biosensor device 20a detected based on the pairing search temporarily cancel the pairing so far, and the terminal device 10b and the biosensor device Establish pairing between 20a.

  The biometric information acquisition unit 111 of the terminal device 10b acquires biometric information from the newly paired biosensor device 20a. The presentation control unit 1111 causes the display unit 14 to display the acquired biological information and / or causes the voice input / output unit 16 to output the voice. For example, a numerical value of the acquired biological information may be read out by speech synthesis. The member B can determine how dangerous the member A is based on the presented biological information, and can use it for the rescue plan.

  FIG. 12 is a flowchart for explaining a rescue request method using the dangerous work support system 1 according to a modification of the second embodiment. The biometric information acquisition unit 211 of the biosensor device 20 a acquires the biometric information of the member A from the sensor unit 24. The biological information notification unit 212 notifies the acquired biological information to the terminal device 10a via short-range wireless communication (S31A).

  The biometric information acquisition unit 111 of the terminal device 10a paired with the biosensor device 20a acquires the biometric information of the member A from the biosensor device 20a via short-range wireless communication. The biological information determination unit 113 determines whether or not the acquired biological information of the member A is normal. When it is determined that the biological information of the member A is abnormal, the mode switching instruction notification unit 119 notifies the biological sensor device 20a via the short-range wireless communication of a mode switching instruction that instructs to switch from the normal mode to the pairing mode. (S34A). When the mode control unit 213 of the biosensor device 20a acquires the mode switching instruction from the terminal device 10a via the short-range wireless communication, the mode control unit 213 shifts from the normal mode to the pairing mode (S35A). Even in the normal mode, when it is set to return a response to a pairing search from another device, the processes of steps S34A and S35A are omitted.

  Subsequent processing is the same processing as steps S35B and S35C in the flowchart of FIG. In the modified example, the search result notification unit 1110 of the terminal devices 10b and 10c may notify the search result to both the requesting terminal device 10a and the management device 30 via business wireless communication (S39B, S39C).

  As described above, according to the second embodiment, when a certain member falls into a dangerous state, the dangerous state is determined by identifying a nearby member using pairing search in short-range wireless communication. It is possible to inform nearby members smoothly that they have fallen. In addition, the plurality of terminal devices 10 perform a pairing search of the biosensor device 20 worn by a member in a dangerous state, so that redundancy is high. Even if a malfunction occurs in the short-range wireless communication unit 131 of one terminal device 10, if another terminal device 10 can detect the biosensor device 20, a member holding the terminal device 10 may go to rescue. it can.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to combinations of the respective constituent elements and processing processes, and such modifications are also within the scope of the present invention. is there.

  In the first embodiment, the search unit 114 of the terminal device 10a searches for a device that can be connected by short-range wireless communication when the biological information of the member A detected by the biological sensor device 20a is abnormal. In this regard, the search may be started based on a trigger other than the abnormality of the biological information as long as the trigger indicates that abnormality has occurred in the member A during the dangerous work. For example, when member A provides a thermal sensor or smoke sensor in the terminal device 10 and it is estimated from the output values of these sensors that member A is lying on the floor, the search may be started. The search may be triggered by the member A pressing the rescue request button on the operation unit 15 of the terminal device 10a.

  In the first and second embodiments, the biosensor device 20 is a target for pairing search as a slave device in short-range wireless communication, but the terminal device 10 held by another member may be a target for pairing search. Since the biosensor device 20 is less likely to be separated from the member's body than the terminal device 10, the search result of the biosensor device 20 may be prioritized when the search results of the two are different.

  The biosensor device 20 in the first and second embodiments is an example of a communication terminal device that includes the short-range wireless communication unit 131 and does not include the business wireless communication unit 132 and the mobile phone communication unit. Therefore, instead of the biosensor device 20, for example, an accessory device such as a headset using Bluetooth (registered trademark) may be used.

  DESCRIPTION OF SYMBOLS 1 Dangerous work support system, 10 Terminal device, 11 Control part, 111 Biometric information acquisition part, 112 Biometric information notification part, 113 Biometric information determination part, 114 Search part, 115 Pairing management part, 116 Communication destination determination part, 117 Electric field Intensity detection unit, 118 rescue request notification unit, 118a search instruction notification unit, 119 mode switching instruction notification unit, 1110 search result notification unit, 1111 presentation control unit, 12 storage unit, 121 biosensor ID holding unit, 13 communication unit, 131 Short-range wireless communication unit, 132 business wireless communication unit, 14 display unit, 15 operation unit, 16 voice input / output unit, 20 biosensor device, 21 control unit, 211 biometric information acquisition unit, 212 biometric information notification unit, 213 mode Control unit, 214 pairing management unit, 22 storage unit, 23 communication unit, 231 short-range wireless communication unit, 24 sensor unit, 25 operation unit, 3 command center, 30 management device, 31 control unit, 311 biological information acquisition unit, 312 display control unit, 313 rescue request acquisition unit, 313a search Result acquisition unit, 314 biological information determination unit, 315 mode switching instruction notification unit, 316 search instruction notification unit, 317 communication destination determination unit, 32 storage unit, 321 device information holding unit, 33 communication unit, 331 business wireless communication unit, 34 display unit, 35 operation unit, 36 voice input / output unit.

Claims (9)

A second communication unit that communicates with the second communication terminal device by a second communication method capable of communication at a longer distance than the first communication method;
A search instruction for instructing to search for the first communication terminal device identified by the identifier, including an identifier for identifying the first communication terminal device that performs communication by the first communication method, using the first communication method. A search instruction notification unit that notifies the second communication terminal device via the second communication unit;
A communication terminal device. A first communication unit that communicates with the first communication terminal device by the first communication method;
Before the search instruction notifying unit notifies the search instruction to the second communication terminal device, from a mode in which the first communication terminal device does not respond to a search from another device, from another device A mode switching instruction notifying unit for notifying a mode switching instruction for switching to a mode that responds to the search of the first communication unit;
The communication terminal device according to claim 1. A first communication unit that communicates with the first communication terminal device by the first communication method;
A second communication unit that communicates with the second communication terminal device by a second communication method capable of communication at a longer distance than the first communication method;
A search instruction for instructing to search for the first communication terminal device identified by the identifier by the first communication method, including an identifier for identifying the first communication terminal device. A search unit that searches for the first communication terminal device via the first communication unit when acquired via the second communication unit;
A communication terminal device. A search result notifying unit for notifying the second communication terminal device or the management device of a search result including whether or not the search unit has detected the first communication terminal device via the second communication unit; Prepared,
The communication terminal device according to claim 3. When the search unit detects the first communication terminal device, the search result notification unit includes the radio wave intensity of the response signal transmitted from the detected first communication terminal device in the search result.
The communication terminal device according to claim 4. When the search unit detects the first communication terminal device, the search unit further includes a presentation control unit that acquires biometric information from the detected first communication terminal device and presents the biometric information to the user.
The communication terminal device according to claim 3. A communication system comprising a first communication terminal device, a second communication terminal device, and a management device,
The second communication terminal device
A second communication unit that communicates with the management device by a second communication method capable of communication at a longer distance than the first communication method;
With
The management device
A communication unit that performs communication according to the second communication method;
When a trigger signal is acquired from the second communication terminal device via the communication unit, a first signal identified by the identifier including an identifier for identifying the first communication terminal device that performs communication by the first communication method. A search instruction notifying unit for notifying another second communication terminal device via the communication unit of a search instruction for instructing to search for one communication terminal device by the first communication method;
A communication system comprising: A search instruction for instructing to search for the first communication terminal apparatus identified by the identifier, including an identifier for identifying the first communication terminal apparatus that performs communication by the first communication system, by the first communication system. A communication method comprising: a search instruction notifying step of notifying the second communication terminal device by a second communication method capable of communication at a longer distance than the first communication method. A communication method in a communication system comprising a first communication terminal device, a second communication terminal device, and a management device,
The second communication terminal device
A second communication step of communicating with the management device by a second communication method capable of communication at a longer distance than the first communication method;
With
The management device
A communication step of performing communication according to the second communication method;
When a trigger signal is acquired from the second communication terminal device by the second communication method, the trigger signal is identified by the identifier including an identifier for identifying the first communication terminal device that performs communication by the first communication method. A search instruction notifying unit for notifying a second communication terminal device of a search instruction for instructing to search for the first communication terminal device by the first communication method;
A communication method comprising:

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