WO2021029196A1 - 光ファイバセンシングシステム、光ファイバセンシング機器、及び救助要請検知方法 - Google Patents
光ファイバセンシングシステム、光ファイバセンシング機器、及び救助要請検知方法 Download PDFInfo
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- WO2021029196A1 WO2021029196A1 PCT/JP2020/028327 JP2020028327W WO2021029196A1 WO 2021029196 A1 WO2021029196 A1 WO 2021029196A1 JP 2020028327 W JP2020028327 W JP 2020028327W WO 2021029196 A1 WO2021029196 A1 WO 2021029196A1
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- rescue request
- optical fiber
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- detection unit
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/006—Alarm destination chosen according to type of event, e.g. in case of fire phone the fire service, in case of medical emergency phone the ambulance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/016—Personal emergency signalling and security systems
Definitions
- the present disclosure relates to an optical fiber sensing system, an optical fiber sensing device, and a rescue request detection method.
- Patent Document 1 an optical fiber is laid on a structure (infrastructure), and the optical fiber is used to sense a change in the state of the structure, so that when an emergency such as a disaster occurs, the structure is constructed.
- the technology that can remotely monitor the state of is disclosed.
- Patent Document 1 Like the technology disclosed in Patent Document 1, it is important to detect the damage situation of the structure when a disaster occurs, but it is also important to detect the damage situation of the victims. In particular, when a rescuer occurs, it is necessary to detect the rescuer immediately and head for rescue.
- an object of the present disclosure is to provide an optical fiber sensing system, an optical fiber sensing device, and a rescue request detection method that can solve the above-mentioned problems and quickly detect a person requiring rescue in the event of a disaster.
- the optical fiber sensing system is With optical fiber A receiving unit that receives an optical signal including a vibration pattern from the optical fiber, A detection unit that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal, and To be equipped.
- the optical fiber sensing device is A receiver that receives an optical signal including a vibration pattern from an optical fiber, A detection unit that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal, and To be equipped.
- One aspect of the rescue request detection method is It is a rescue request detection method using an optical fiber sensing system.
- a reception step that receives an optical signal including a vibration pattern from an optical fiber,
- a detection step for detecting the occurrence of a rescue request based on the vibration pattern included in the optical signal, and including.
- an optical fiber sensing system an optical fiber sensing device, and a rescue request detection method that can quickly detect a person requiring rescue in the event of a disaster.
- FIG. It is a figure which shows the configuration example of the optical fiber sensing system which concerns on Embodiment 1.
- FIG. It is a figure which shows the specific configuration example of the optical fiber sensing system which concerns on Embodiment 1.
- FIG. It is a figure which shows the example of the poster posted on the utility pole shown in FIG.
- FIG. It is a figure which shows the specific configuration example of the optical fiber sensing system which concerns on Embodiment 1.
- FIG. It is a figure which shows the specific configuration example of the optical fiber sensing system which concerns on Embodiment 1.
- FIG. It is a flow chart which shows the operation example of the optical fiber sensing system which concerns on Embodiment 1.
- FIG. It is a figure which shows the configuration example of the optical fiber sensing system which concerns on Embodiment 2.
- the optical fiber sensing system includes an optical fiber 10 and an optical fiber sensing device 20. Further, the optical fiber sensing device 20 includes a receiving unit 21 and a detecting unit 22.
- the optical fiber 10 is laid on an arbitrary object, and one end thereof is connected to the optical fiber sensing device 20.
- the existing optical fiber already laid on the object may be used, or the optical fiber 10 may be newly laid on the object. Further, the number of optical fibers 10 may be one or a plurality.
- the receiving unit 21 incidents pulsed light on the optical fiber 10. Further, the receiving unit 21 receives the reflected light or scattered light generated when the pulsed light is transmitted through the optical fiber 10 as return light (optical signal) via the optical fiber 10.
- the optical fiber 10 can detect the vibration generated in the object. Further, since the wavelength of the return light transmitted through the optical fiber 10 changes according to the vibration generated in the object, the return light includes a vibration pattern corresponding to the vibration generated in the object. This vibration pattern is a unique pattern in which the strength of vibration, the position of vibration, the transition of fluctuations in frequency, and the like are different.
- the detection unit 22 determines whether or not the vibration pattern included in the return light is a specific vibration pattern by analyzing the dynamic change of the vibration pattern included in the return light received by the reception unit 21. It becomes possible to do.
- the vibration pattern of the vibration generated when the rescue-requiring person or the companion who accompanies the rescue-requiring person makes a rescue request in the event of a disaster or the like is defined, and the detection unit 22 determines. The occurrence of a rescue request is detected based on the vibration pattern included in the return light received by the receiving unit 21.
- the detection unit 22 determines whether or not the vibration pattern included in the return light received by the reception unit 21 includes the vibration pattern of the vibration generated when the rescue-requiring person or the companion requests rescue. Based on the judgment result, the occurrence of a rescue request is detected.
- the detection unit 22 detects the occurrence of a rescue request based on the vibration pattern included in the return light received by the reception unit 21.
- the detection unit 22 determines that a rescue request has occurred when the vibration pattern included in the return light received by the reception unit 21 includes a vibration pattern of a specific rhythm (beat).
- the vibration of a specific rhythm is a continuous tapping sound that does not occur in normal times.
- the vibration of a specific rhythm is a vibration sound of a predetermined rhythm.
- a predetermined rhythm is a rhythm of 337 beats, a rhythm of hitting a certain number of times within a certain time period, and the like.
- the detection unit 22 may use pattern matching. For example, the detection unit 22 stores in advance a vibration pattern of a specific rhythm as a matching pattern. There may be a plurality of matching patterns. The detection unit 22 compares the vibration pattern included in the return light with the matching pattern stored in advance. When the vibration pattern included in the return light includes any of the matching patterns stored in advance, the detection unit 22 determines that the vibration pattern included in the return light includes a vibration pattern having a specific rhythm. , Judge that a rescue request has occurred.
- the detection unit 22 uses the vibration pattern included in the return light received by the reception unit 21 as a voice requesting rescue (for example, a voice such as "help” or a scream sound such as "car”). If a corresponding vibration pattern is included, it is determined that a rescue request has occurred.
- a voice requesting rescue for example, a voice such as "help” or a scream sound such as "car”
- the vibration pattern included in the return light received by the receiving unit 21 also includes a vibration pattern of vibration generated due to the sound generated in or around the object. Therefore, the detection unit 22 can recognize the sound generated in or around the object by analyzing the dynamic change of the vibration pattern included in the return light.
- the detection unit 22 is a list of voice words (for example, voice words such as "help” and "car") that may be used when a rescuer or a companion requests rescue. Is memorized in advance. There may be multiple voice words.
- the detection unit 22 performs voice recognition based on the vibration pattern included in the return light, and compares the recognized voice with a voice word stored in advance. When the recognized voice includes any of the voice words stored in advance, the detection unit 22 determines that the vibration pattern included in the return light includes a vibration pattern corresponding to the voice requesting rescue. Judge that a rescue request has occurred.
- the detection unit 22 may detect a vibration pattern corresponding to a screaming sound such as "car” by using pattern matching.
- the detection unit 22 stores the vibration pattern of the screaming sound in advance as a matching pattern, and in the same manner as the method A1 described above, the vibration pattern included in the return light has a vibration pattern corresponding to the screaming sound. It is sufficient to judge whether or not is included.
- the configuration B1 will be described with reference to FIG.
- the configuration B1 is an example in which the existing optical fiber already laid on the utility poles TP1 to TP3 is used as the optical fiber 10.
- utility poles TP1 to TP3 are objects.
- a utility pole TP when it is not specified which utility pole TP1 to TP3 is, it is referred to as a utility pole TP.
- the rescuer or companion in order for the rescuer or companion to hit the utility pole TP with a specific rhythm, the rescuer or companion needs to know the specific rhythm. Therefore, it is conceivable to inform the residents of a specific rhythm on a regional basis. Alternatively, as shown in FIG. 3, it is conceivable to post a poster for notifying a specific rhythm on each of the utility poles TP1 to TP3.
- a voice input unit such as a microphone M for inputting a voice requesting rescue by a rescuer or a companion in the event of a disaster or the like. May be installed.
- each of the utility poles TP1 to TP3 may be provided with an output unit 30 for notifying the person requiring rescue or a companion that the rescue request has been received.
- the output unit 30 may be realized by an LED (Light Emitting Diode) lamp that notifies by lighting or blinking that a rescue request has been received, a display that notifies by screen, a speaker that notifies by voice, or the like.
- the configuration B1 is an example in which the existing optical fiber already laid on the utility poles TP1 to TP3 is used as the optical fiber 10, but the present invention is not limited to this.
- the optical fiber 10 an existing optical fiber that has already been laid in another object may be used.
- Other objects are, for example, bridges, tunnels, roads, and the like.
- the configuration B2 is an example in which the optical fiber 10 is newly laid.
- the optical fiber 10 is newly laid on the objects OB1 and OB2.
- object OB when it is not specified which object OB1 or OB2 is, it is referred to as an object OB.
- each of the objects OB1 and OB2 is provided with a hammer H for hitting the object OB with a specific rhythm, a microphone M for inputting a voice requesting rescue, and a rescue request.
- An output unit 30 for notifying the acceptance may be installed.
- the method for the rescuer or the companion to know the specific rhythm may be the same as the method described in the above-described configuration B1.
- the objects OB1 and OB2 may be arbitrary objects, but as described above, they are used when a rescuer or a companion makes a rescue request in the event of a disaster. Therefore, the objects OB1 and OB2 are preferably objects to which a rescuer or a companion may go in the event of a disaster, and for example, an evacuation map display board, a telephone box, or the like is suitable.
- the configuration B3 is an example in which one optical fiber 10 is laid on the objects OB1 and OB2.
- the configuration B3 is an example in which two optical fibers 10 branched from one optical fiber 10 are laid on the objects OB1 and OB2, respectively, as shown in FIG.
- the other configurations of the configuration B3 are the same as those of the configuration B2 described above.
- the receiving unit 21 receives the return light including the vibration pattern from the optical fiber 10 (step S11).
- the detection unit 22 detects the occurrence of a rescue request based on the vibration pattern included in the return light received by the reception unit 21 (step S12). This detection may be performed by using, for example, any of the above-mentioned methods A1 and A2.
- the receiving unit 21 receives the return light including the vibration pattern from the optical fiber 10.
- the detection unit 22 detects the occurrence of a rescue request based on the vibration pattern included in the return light. As a result, the person requiring rescue can be quickly detected when a disaster occurs.
- the detection unit 22 generated a rescue request when the vibration pattern included in the return light includes a vibration pattern of a specific rhythm or a vibration pattern corresponding to a voice requesting rescue.
- the person requiring rescue or a companion can rescue the optical fiber 10 or an object on which the optical fiber 10 is laid by a simple method such as hitting the object with a specific rhythm or issuing a voice requesting rescue. Can be requested.
- the optical fiber sensing system according to the second embodiment has an additional display unit 40 as compared with the configuration of the first embodiment described above, and the optical fiber sensing device 20. The difference is that the notification unit 23 is added to.
- the notification unit 23 When the detection unit 22 determines that a rescue request has occurred, the notification unit 23 notifies the notification destination that a rescue request has occurred.
- the notification destination is, for example, a local government, a fire station, an emergency center, a monitoring center, etc., but is not limited to this.
- the notification method may be, for example, a method of displaying a GUI (Graphical User Interface) screen on the display unit 40 of the display or monitor of the notification destination. Further, the notification method may be a method of outputting a message by voice from a speaker (not shown) of the notification destination.
- GUI Graphic User Interface
- the receiving unit 21 receives the return light including the vibration pattern from the optical fiber 10 (step S21), and then the detecting unit 21. 22 detects the occurrence of a rescue request based on the vibration pattern included in the return light received by the receiving unit 21 (step S22).
- the notification unit 23 notifies the notification destination that the rescue request has occurred (step S23). This notification may be performed, for example, by displaying on the screen or outputting by voice that a rescue request has occurred, as described above.
- the notification unit 23 when the detection unit 22 determines that the rescue request has occurred, the notification unit 23 notifies the notification destination that the rescue request has occurred. As a result, it is possible to notify the notification destination that a rescue request has occurred.
- Other effects are the same as those in the first embodiment described above.
- the detection unit 22 determines the place where the rescue request is generated based on the return light received by the reception unit 21. For example, the detection unit 22 determines the time when the receiving unit 21 incidents the pulsed light on the optical fiber 10 and the corresponding vibration pattern (for example, a vibration pattern of a specific rhythm or a vibration pattern corresponding to a voice requesting rescue). The distance of the optical fiber 10 from the receiving unit 21 (optical fiber sensing device 20) to the position where the rescue request is generated is specified based on the time difference between the time when the receiving unit 21 receives the included return light and the time difference.
- the detection unit 22 determines the time when the receiving unit 21 incidents the pulsed light on the optical fiber 10 and the corresponding vibration pattern (for example, a vibration pattern of a specific rhythm or a vibration pattern corresponding to a voice requesting rescue).
- the distance of the optical fiber 10 from the receiving unit 21 (optical fiber sensing device 20) to the position where the rescue request is generated is specified based on the time difference between the time when the receiving unit 21 receives the
- the detection unit 22 stores in advance a correspondence table in which the distance of the optical fiber 10 from the reception unit 21 and the location corresponding to the distance are associated with each other.
- FIG. 9 shows an example of a corresponding table when the optical fiber 10 is laid on utility poles TP1 to TP3 as shown in FIG.
- the correspondence table associates the distance of the optical fiber 10 from the receiving unit 21 with the identification information of the utility pole TP installed at a position corresponding to the distance. For example, when the distance of the optical fiber 10 from the receiving unit 21 to the position where the rescue request is generated is xx [m], the detection unit 22 determines that the place where the rescue request is generated is the utility pole TP1. ..
- the method of specifying the distance of the optical fiber 10 from the receiving unit 21 (optical fiber sensing device 20) to the position where the rescue request is generated is not limited to the above-mentioned method.
- the detection unit 22 compares the intensity of vibration of the corresponding vibration pattern generated at each distance of the optical fiber 10 from the reception unit 21. Then, the detection unit 22 may specify the position at the distance where the vibration intensity is the largest as the position where the rescue request is generated.
- the notification unit 23 When the detection unit 22 determines that a rescue request has occurred, the notification unit 23 notifies the notification destination of the location where the rescue request has occurred.
- the notification unit 23 may store the information indicating the position where the optical fiber 10 is laid and the map information in association with each other. Then, when the detection unit 22 determines that the rescue request has occurred, the notification unit 23 may map and display the location where the rescue request has occurred on the map displayed by the display unit 40.
- FIG. 10 shows an example of a GUI screen that maps and displays the location where a rescue request has occurred on a map. In the example of FIG. 10, the position where the optical fiber 10 is laid is mapped and displayed on the map, and the location X where the rescue request is generated is mapped and displayed. When a rescue request occurs at a plurality of places, the plurality of places where the rescue request has occurred may be mapped and displayed on the map. In addition, the map shown in FIG. 10 can be enlarged and reduced as needed.
- steps S31 to S32 similar to steps S21 to S22 in FIG. 8 are performed.
- the detection unit 22 determines that the rescue request has occurred in step S32 (Yes in step S32), the detection unit 22 subsequently identifies the location where the rescue request has occurred based on the return light received by the reception unit 21 (step). S33) This identification may be performed by using, for example, the method using the correspondence table described above.
- the notification unit 23 notifies the notification destination of the place where the rescue request has occurred (step S34).
- This notification may be performed using, for example, the GUI screen shown in FIG. 10 described above.
- the notification unit 23 may determine the notification destination according to the location and timing of the rescue request. For example, the notification unit 23 may determine a local government or the like that is close to or has jurisdiction over the place where the rescue request is made as the notification destination. In addition, depending on the notification destination, there may be a shortage of manpower when a rescue request is made. Therefore, the notification unit 23 stores the priority of the notification destination in advance for each time zone. For example, if there is a notification destination that requires less manpower in the evening time zone, the notification destination is set to have a low priority in the evening time zone. Then, the notification unit 23 may determine the notification destination having the highest priority at the time when the rescue request is generated.
- the detection unit 22 determines that the rescue request has occurred
- the detection unit 22 identifies the place where the rescue request has occurred based on the return light
- the notification unit 23 rescues. Notify the notification destination of the place where the request occurred. As a result, not only the rescue request has occurred, but also the place where the rescue request has occurred can be notified to the notification destination.
- Other effects are the same as those in the first embodiment described above.
- the notification unit 23 maps and displays the location where the rescue request has occurred on the map. From this display, the position (distribution) where the rescue-requiring person exists can be specified, so that it is also possible to specify the disaster situation. Either the detection unit 22 or the notification unit 23 may specify the damage situation.
- the optical fiber sensing device 20 is provided with a plurality of components (reception unit 21, detection unit 22, and notification unit 23), but the present invention is not limited to this.
- the components provided in the optical fiber sensing device 20 are not limited to being provided in one device, and may be distributed in a plurality of devices.
- the computer 50 includes a processor 501, a memory 502, a storage 503, an input / output interface (input / output I / F) 504, a communication interface (communication I / F) 505, and the like.
- the processor 501, the memory 502, the storage 503, the input / output interface 504, and the communication interface 505 are connected by a data transmission line for transmitting and receiving data to and from each other.
- the processor 501 is, for example, an arithmetic processing unit such as a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit).
- the memory 502 is, for example, a memory such as a RAM (Random Access Memory) or a ROM (Read Only Memory).
- the storage 503 is, for example, a storage device such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), or a memory card. Further, the storage 503 may be a memory such as a RAM or a ROM.
- the storage 503 stores a program that realizes the functions of the components (reception unit 21, detection unit 22, and notification unit 23) included in the optical fiber sensing device 20. By executing each of these programs, the processor 501 realizes the functions of the components included in the optical fiber sensing device 20.
- the processor 501 may read these programs on the memory 502 and then execute the programs, or may execute the programs without reading them on the memory 502.
- the memory 502 and the storage 503 also play a role of storing information and data held by the components included in the optical fiber sensing device 20.
- Non-temporary computer-readable media include various types of tangible storage media.
- Examples of non-temporary computer-readable media include magnetic recording media (eg, flexible disks, magnetic tapes, hard disk drives), optomagnetic recording media (eg, optomagnetic disks), CD-ROMs (Compact Disc-ROMs), CDs. -R (CD-Recordable), CD-R / W (CD-ReWritable), semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM.
- the program also includes.
- the computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
- the input / output interface 504 is connected to the display device 5041, the input device 5042, the sound output device 5043, and the like.
- the display device 5041 is a device that displays a screen corresponding to drawing data processed by the processor 501, such as an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube) display, and a monitor.
- the input device 5042 is a device that receives an operator's operation input, and is, for example, a keyboard, a mouse, a touch sensor, and the like.
- the display device 5041 and the input device 5042 may be integrated and realized as a touch panel.
- the sound output device 5043 is a device such as a speaker that acoustically outputs sound corresponding to acoustic data processed by the processor 501.
- the communication interface 505 sends and receives data to and from an external device.
- the communication interface 505 communicates with an external device via a wired communication path or a wireless communication path.
- Appendix 1 With optical fiber A receiving unit that receives an optical signal including a vibration pattern from the optical fiber, A detection unit that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal, and An optical fiber sensing system.
- Appendix 2 The detection unit determines that the rescue request has occurred when the vibration pattern included in the optical signal includes a vibration pattern having a specific time signature.
- the optical fiber sensing system according to Appendix 1.
- Appendix 3 The detection unit determines that the rescue request has occurred when the vibration pattern included in the optical signal includes a vibration pattern corresponding to a voice requesting rescue.
- the optical fiber sensing system according to Appendix 1. (Appendix 4) When the detection unit determines that the rescue request has occurred, the detection unit further includes a notification unit that notifies the notification destination that the rescue request has occurred.
- the optical fiber sensing system according to any one of Appendix 1 to 3. (Appendix 5)
- the detection unit determines that the rescue request has occurred, the detection unit identifies the place where the rescue request has occurred based on the optical signal.
- the notification unit determines the notification destination according to the place where the rescue request is generated.
- the notification unit maps and displays the location where the rescue request has occurred on the map displayed by the display unit.
- the optical fiber sensing system according to Appendix 5.
- a receiver that receives an optical signal including a vibration pattern from an optical fiber
- a detection unit that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal
- the detection unit determines that the rescue request has occurred when the vibration pattern included in the optical signal includes a vibration pattern having a specific time signature.
- the optical fiber sensing device according to Appendix 7.
- the detection unit determines that the rescue request has occurred when the vibration pattern included in the optical signal includes a vibration pattern corresponding to a voice requesting rescue.
- the optical fiber sensing device according to Appendix 7.
- the detection unit further includes a notification unit that notifies the notification destination that the rescue request has occurred.
- the optical fiber sensing device according to any one of Appendix 7 to 9.
- the detection unit determines that the rescue request has occurred, the detection unit identifies the place where the rescue request has occurred based on the optical signal.
- the notification unit determines the notification destination according to the place where the rescue request is generated.
- the optical fiber sensing device according to Appendix 10.
- Appendix 12 When the detection unit determines that the rescue request has occurred, the notification unit maps and displays the location where the rescue request has occurred on the map displayed by the display unit.
- the optical fiber sensing device according to Appendix 11.
- Appendix 13 It is a rescue request detection method using an optical fiber sensing system.
- a reception step that receives an optical signal including a vibration pattern from an optical fiber
- a detection step for detecting the occurrence of a rescue request based on the vibration pattern included in the optical signal and Rescue request detection methods, including.
- Appendix 14 In the detection step, when the vibration pattern included in the optical signal includes a vibration pattern having a specific time signature, it is determined that the rescue request has occurred.
- the rescue request detection method according to Appendix 13. (Appendix 15) In the detection step, when the vibration pattern included in the optical signal includes a vibration pattern corresponding to a voice requesting rescue, it is determined that the rescue request has occurred.
- the rescue request detection method according to Appendix 13. (Appendix 16) When it is determined that the rescue request has occurred in the detection step, a notification step for notifying the notification destination that the rescue request has occurred is further included.
- the notification step when it is determined that the rescue request has occurred in the detection step, the notification destination is determined according to the place where the rescue request has occurred.
- the notification step when it is determined that the rescue request has occurred in the detection step, the location where the rescue request has occurred is mapped and displayed on the map displayed by the display unit.
- Optical fiber 20 Optical fiber sensing device 21 Receiver 22 Detector 23 Notification unit 30 Output unit 40
- Display unit 50 Computer 501 Processor 502 Memory 503 Storage 504 Input / output interface 5041
- Display device 5042 Input device 5043 Sound output device 505 Communication interface TP1 ⁇ TP3 Electric pole OB1, OB2 Object H Hammer M Microphone
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Abstract
Description
光ファイバと、
前記光ファイバから振動パターンを含む光信号を受信する受信部と、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知部と、
を備える。
光ファイバから振動パターンを含む光信号を受信する受信部と、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知部と、
を備える。
光ファイバセンシングシステムによる救助要請検知方法であって、
光ファイバから振動パターンを含む光信号を受信する受信ステップと、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知ステップと、
を含む。
まず、図1を参照して、本実施の形態1に係る光ファイバセンシングシステムの構成例について説明する。
まず、方法A1について説明する。
方法A1においては、検知部22は、受信部21が受信した戻り光に含まれる振動パターンに、特定のリズム(拍子)の振動パターンが含まれる場合に、救助要請が発生したと判断する。
例えば、検知部22は、特定のリズムの振動パターンを、マッチング用パターンとして予め記憶しておく。マッチング用パターンは複数でも良い。検知部22は、戻り光に含まれる振動パターンを、予め記憶しているマッチング用パターンと比較する。戻り光に含まれる振動パターンが、予め記憶しているマッチング用パターンのいずれかを含む場合、検知部22は、戻り光に含まれる振動パターンに、特定のリズムの振動パターンが含まれると判断し、救助要請が発生したと判断する。
続いて、方法A2について説明する。
方法A2においては、検知部22は、受信部21が受信した戻り光に含まれる振動パターンに、救助を要請する音声(例えば、「助けて」等の音声、「キャー」等の悲鳴音)に相当する振動パターンが含まれる場合に、救助要請が発生したと判断する。
そのため、検知部22は、戻り光に含まれる振動パターンの動的変化を分析することにより、オブジェクト又はその周辺で発生した音声を認識することが可能となる。
(B1)構成B1
まず、図2を参照して、構成B1について説明する。
図2に示されるように、構成B1は、電柱TP1~TP3に既に敷設されている既設の光ファイバを、光ファイバ10として利用する例である。図2の例では、電柱TP1~TP3がオブジェクトになる。以下、どの電柱TP1~TP3であるかを特定しない場合には、電柱TPと称す。
そのため、特定のリズムは、地域単位で住人に周知しておくことが考えられる。
又は、電柱TP1~TP3の各々には、図3に示されるように、特定のリズムを通知するための張り紙を掲示しておくことが考えられる
続いて、図4を参照して、構成B2について説明する。
図4に示されるように、構成B2は、光ファイバ10を新規に敷設する例である。図4の例では、オブジェクトOB1,OB2に光ファイバ10を新規に敷設している。以下、どのオブジェクトOB1,OB2であるかを特定しない場合には、オブジェクトOBと称す。
続いて、図5を参照して、構成B3について説明する。
上述した構成B2は、1本の光ファイバ10をオブジェクトOB1,OB2に敷設する例であった。
これに対して、構成B3は、図5に示されるように、1本の光ファイバ10から分岐させた2本の光ファイバ10をそれぞれオブジェクトOB1,OB2に敷設する例である。
なお、構成B3のその他の構成は、上述した構成B2と同様である。
図6に示されるように、受信部21は、光ファイバ10から、振動パターンを含む戻り光を受信する(ステップS11)。
続いて、図7を参照して、本実施の形態2に係る光ファイバセンシングシステムの構成例について説明する。
図8に示されるように、まず、図6のステップS11~S12と同様に、受信部21は、光ファイバ10から、振動パターンを含む戻り光を受信し(ステップS21)、続いて、検知部22は、受信部21が受信した戻り光に含まれる振動パターンに基づいて、救助要請の発生を検知する(ステップS22)。
その他の効果は、上述した実施の形態1と同様である。
本実施の形態3に係る光ファイバセンシングシステムは、構成自体は上述した実施の形態2の構成と同様であるが、検知部22及び報知部23の機能を拡張している。
例えば、検知部22は、受信部21が光ファイバ10にパルス光を入射した時刻と、該当する振動パターン(例えば、特定のリズムの振動パターンや、救助を要請する音声に相当する振動パターン)を含む戻り光を受信部21が受信した時刻と、の時間差に基づいて、受信部21(光ファイバセンシング機器20)から、救助要請が発生した位置までの光ファイバ10の距離を特定する。
例えば、検知部22は、受信部21からの光ファイバ10の距離毎に、その距離で発生した、該当する振動パターンの振動の強度を比較する。そして、検知部22は、振動の強度が最も大きい距離にある位置を、救助要請が発生した位置として特定しても良い。
図11に示されるように、まず、図8のステップS21~S22と同様のステップS31~S32が行われる。
例えば、報知部23は、救助要請が発生した場所に近い、又は、その場所を管轄する地方自治体等を報知先に決定しても良い。
また、報知先によっては、救助要請が発生した時点で人手不足になっていることがある。そのため、報知部23は、時間帯毎に、報知先の優先度を予め記憶しておく。例えば、夕方の時間帯に人手が少なくなる報知先がある場合、その報知先は、夕方の時間帯の優先度は低く設定される。そして、報知部23は、救助要請が発生した時点の優先度が最も高い報知先に決定しても良い。
その他の効果は、上述した実施の形態1と同様である。
上述した実施の形態3では、報知部23は、地図上に、救助要請が発生した場所をマッピングして表示している。この表示により、要救助者が存在する位置(分布)を特定できるため、被災状況を特定することも可能となる。なお、被災状況の特定は、検知部22又は報知部23のどちらが行っても良い。
続いて以下では、図12を参照して、光ファイバセンシング機器20を実現するコンピュータ50のハードウェア構成について説明する。
例えば、上述した実施の形態は、一部又は全部を相互に組み合わせて用いても良い。
(付記1)
光ファイバと、
前記光ファイバから振動パターンを含む光信号を受信する受信部と、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知部と、
を備える、光ファイバセンシングシステム。
(付記2)
前記検知部は、前記光信号に含まれる振動パターンに特定の拍子の振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
付記1に記載の光ファイバセンシングシステム。
(付記3)
前記検知部は、前記光信号に含まれる振動パターンに救助を要請する音声に相当する振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
付記1に記載の光ファイバセンシングシステム。
(付記4)
前記検知部が前記救助要請が発生したと判断した場合、前記救助要請が発生したことを報知先に報知する報知部をさらに備える、
付記1から3のいずれか1項に記載の光ファイバセンシングシステム。
(付記5)
前記検知部は、前記救助要請が発生したと判断した場合、前記光信号に基づいて、前記救助要請が発生した場所を特定し、
前記報知部は、前記検知部が前記救助要請が発生したと判断した場合、前記救助要請が発生した場所に応じて前記報知先を決定する、
付記4に記載の光ファイバセンシングシステム。
(付記6)
表示部をさらに備え、
前記報知部は、前記検知部が前記救助要請が発生したと判断した場合、前記表示部が表示する地図上に、前記救助要請が発生した場所をマッピングして表示する、
付記5に記載の光ファイバセンシングシステム。
(付記7)
光ファイバから振動パターンを含む光信号を受信する受信部と、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知部と、
を備える、光ファイバセンシング機器。
(付記8)
前記検知部は、前記光信号に含まれる振動パターンに特定の拍子の振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
付記7に記載の光ファイバセンシング機器。
(付記9)
前記検知部は、前記光信号に含まれる振動パターンに救助を要請する音声に相当する振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
付記7に記載の光ファイバセンシング機器。
(付記10)
前記検知部が前記救助要請が発生したと判断した場合、前記救助要請が発生したことを報知先に報知する報知部をさらに備える、
付記7から9のいずれか1項に記載の光ファイバセンシング機器。
(付記11)
前記検知部は、前記救助要請が発生したと判断した場合、前記光信号に基づいて、前記救助要請が発生した場所を特定し、
前記報知部は、前記検知部が前記救助要請が発生したと判断した場合、前記救助要請が発生した場所に応じて前記報知先を決定する、
付記10に記載の光ファイバセンシング機器。
(付記12)
前記報知部は、前記検知部が前記救助要請が発生したと判断した場合、表示部が表示する地図上に、前記救助要請が発生した場所をマッピングして表示する、
付記11に記載の光ファイバセンシング機器。
(付記13)
光ファイバセンシングシステムによる救助要請検知方法であって、
光ファイバから振動パターンを含む光信号を受信する受信ステップと、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知ステップと、
を含む、救助要請検知方法。
(付記14)
前記検知ステップでは、前記光信号に含まれる振動パターンに特定の拍子の振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
付記13に記載の救助要請検知方法。
(付記15)
前記検知ステップでは、前記光信号に含まれる振動パターンに救助を要請する音声に相当する振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
付記13に記載の救助要請検知方法。
(付記16)
前記検知ステップで前記救助要請が発生したと判断した場合、前記救助要請が発生したことを報知先に報知する報知ステップをさらに含む、
付記13から15のいずれか1項に記載の救助要請検知方法。
(付記17)
前記検知ステップでは、前記救助要請が発生したと判断した場合、前記光信号に基づいて、前記救助要請が発生した場所を特定し、
前記報知ステップでは、前記検知ステップで前記救助要請が発生したと判断した場合、前記救助要請が発生した場所に応じて前記報知先を決定する、
付記16に記載の救助要請検知方法。
(付記18)
前記報知ステップでは、前記検知ステップで前記救助要請が発生したと判断した場合、表示部が表示する地図上に、前記救助要請が発生した場所をマッピングして表示する、
付記17に記載の救助要請検知方法。
20 光ファイバセンシング機器
21 受信部
22 検知部
23 報知部
30 出力部
40 表示部
50 コンピュータ
501 プロセッサ
502 メモリ
503 ストレージ
504 入出力インタフェース
5041 表示装置
5042 入力装置
5043 音出力装置
505 通信インタフェース
TP1~TP3 電柱
OB1,OB2 オブジェクト
H ハンマー
M マイク
Claims (18)
- 光ファイバと、
前記光ファイバから振動パターンを含む光信号を受信する受信部と、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知部と、
を備える、光ファイバセンシングシステム。 - 前記検知部は、前記光信号に含まれる振動パターンに特定の拍子の振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
請求項1に記載の光ファイバセンシングシステム。 - 前記検知部は、前記光信号に含まれる振動パターンに救助を要請する音声に相当する振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
請求項1に記載の光ファイバセンシングシステム。 - 前記検知部が前記救助要請が発生したと判断した場合、前記救助要請が発生したことを報知先に報知する報知部をさらに備える、
請求項1から3のいずれか1項に記載の光ファイバセンシングシステム。 - 前記検知部は、前記救助要請が発生したと判断した場合、前記光信号に基づいて、前記救助要請が発生した場所を特定し、
前記報知部は、前記検知部が前記救助要請が発生したと判断した場合、前記救助要請が発生した場所に応じて前記報知先を決定する、
請求項4に記載の光ファイバセンシングシステム。 - 表示部をさらに備え、
前記報知部は、前記検知部が前記救助要請が発生したと判断した場合、前記表示部が表示する地図上に、前記救助要請が発生した場所をマッピングして表示する、
請求項5に記載の光ファイバセンシングシステム。 - 光ファイバから振動パターンを含む光信号を受信する受信部と、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知部と、
を備える、光ファイバセンシング機器。 - 前記検知部は、前記光信号に含まれる振動パターンに特定の拍子の振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
請求項7に記載の光ファイバセンシング機器。 - 前記検知部は、前記光信号に含まれる振動パターンに救助を要請する音声に相当する振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
請求項7に記載の光ファイバセンシング機器。 - 前記検知部が前記救助要請が発生したと判断した場合、前記救助要請が発生したことを報知先に報知する報知部をさらに備える、
請求項7から9のいずれか1項に記載の光ファイバセンシング機器。 - 前記検知部は、前記救助要請が発生したと判断した場合、前記光信号に基づいて、前記救助要請が発生した場所を特定し、
前記報知部は、前記検知部が前記救助要請が発生したと判断した場合、前記救助要請が発生した場所に応じて前記報知先を決定する、
請求項10に記載の光ファイバセンシング機器。 - 前記報知部は、前記検知部が前記救助要請が発生したと判断した場合、表示部が表示する地図上に、前記救助要請が発生した場所をマッピングして表示する、
請求項11に記載の光ファイバセンシング機器。 - 光ファイバセンシングシステムによる救助要請検知方法であって、
光ファイバから振動パターンを含む光信号を受信する受信ステップと、
前記光信号に含まれる振動パターンに基づいて、救助要請の発生を検知する検知ステップと、
を含む、救助要請検知方法。 - 前記検知ステップでは、前記光信号に含まれる振動パターンに特定の拍子の振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
請求項13に記載の救助要請検知方法。 - 前記検知ステップでは、前記光信号に含まれる振動パターンに救助を要請する音声に相当する振動パターンが含まれる場合に、前記救助要請が発生したと判断する、
請求項13に記載の救助要請検知方法。 - 前記検知ステップで前記救助要請が発生したと判断した場合、前記救助要請が発生したことを報知先に報知する報知ステップをさらに含む、
請求項13から15のいずれか1項に記載の救助要請検知方法。 - 前記検知ステップでは、前記救助要請が発生したと判断した場合、前記光信号に基づいて、前記救助要請が発生した場所を特定し、
前記報知ステップでは、前記検知ステップで前記救助要請が発生したと判断した場合、前記救助要請が発生した場所に応じて前記報知先を決定する、
請求項16に記載の救助要請検知方法。 - 前記報知ステップでは、前記検知ステップで前記救助要請が発生したと判断した場合、表示部が表示する地図上に、前記救助要請が発生した場所をマッピングして表示する、
請求項17に記載の救助要請検知方法。
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- 2020-07-21 EP EP20852517.0A patent/EP4016015A4/en not_active Withdrawn
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- 2020-07-21 US US17/632,848 patent/US20220277641A1/en not_active Abandoned
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| JP7754790B2 (ja) | 2022-11-02 | 2025-10-15 | 能美防災株式会社 | トンネル監視システム |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4016015A4 (en) | 2022-09-21 |
| CN114207389A (zh) | 2022-03-18 |
| EP4016015A1 (en) | 2022-06-22 |
| US20220277641A1 (en) | 2022-09-01 |
| JPWO2021029196A1 (ja) | 2021-02-18 |
| JP7578290B2 (ja) | 2024-11-06 |
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