Title of the invention: Optical fiber sensing system, optical fiber sensing device, and rescue request detection method
Technical field
[0001]
This disclosure relates to an optical fiber sensing system, an optical fiber sensing device, and a rescue request detection method.
Background technology
[0002]
In recent years, there is a technology that uses an optical fiber as a sensor to detect the occurrence of a disaster or the damage caused by a disaster. For example, in 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. The technology that can remotely monitor the state of is disclosed.
Prior art literature
Patent documents
[0003]
Patent Document 1: Japanese Unexamined Patent Publication No. 2001-249835
Outline of the invention
Problems to be solved by the invention
[0004]
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 victim. In particular, when a person in need of rescue occurs, it is necessary to detect the person in need of rescue immediately and head for rescue.
[0005]
Therefore, 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.
Means to solve problems
[0006]
The optical fiber sensing system according to one aspect is
Optical fiber and
A receiving unit that receives an optical signal including a vibration pattern from the optical fiber,
A detector that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
Equipped with.
[0007]
The optical fiber sensing device according to one aspect is
A receiver that receives an optical signal including a vibration pattern from an optical fiber,
A detector that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
Equipped with.
[0008]
The rescue request detection method according to one aspect is
It is a rescue request detection method using an optical fiber sensing system.
The reception step of receiving an optical signal including a vibration pattern from an optical fiber,
A detection step that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
including.
The invention's effect
[0009]
According to the above aspect, it is possible to provide 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.
A brief description of the drawing
[0010]
FIG. 1 is a diagram showing a configuration example of an optical fiber sensing system according to a first embodiment.
FIG. 2 is a diagram showing a specific configuration example of the optical fiber sensing system according to the first embodiment.
FIG. 3 is a diagram showing an example of a sticker posted on a utility pole shown in FIG.
FIG. 4 is a diagram showing a specific configuration example of the optical fiber sensing system according to the first embodiment.
FIG. 5 is a diagram showing a specific configuration example of the optical fiber sensing system according to the first embodiment.
FIG. 6 is a flow chart showing an operation example of the optical fiber sensing system according to the first embodiment.
FIG. 7 is a diagram showing a configuration example of an optical fiber sensing system according to a second embodiment.
FIG. 8 is a flow chart showing an operation example of the optical fiber sensing system according to the second embodiment.
FIG. 9 is a diagram showing an example of a correspondence table stored in the detection unit according to the third embodiment.
FIG. 10 is a diagram showing an example of a GUI screen used for notification by the notification unit according to the third embodiment.
FIG. 11 is a flow chart showing an operation example of the optical fiber sensing system according to the third embodiment.
FIG. 12 is a block diagram showing an example of a hardware configuration of a computer that realizes an optical fiber sensing device according to an embodiment.
Embodiment for carrying out the invention
[0011]
Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The following descriptions and drawings have been omitted or simplified as appropriate for the sake of clarification of the explanation. Further, in each of the following drawings, the same elements are designated by the same reference numerals, and duplicate explanations are omitted as necessary.
[0012]

First, a configuration example of the optical fiber sensing system according to the first embodiment will be described with reference to FIG.
[0013]
As shown in FIG. 1, the optical fiber sensing system according to the first embodiment 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.
[0014]
The optical fiber 10 is laid on an arbitrary object, and one end thereof is connected to the optical fiber sensing device 20. As the optical fiber 10, 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.
[0015]
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.
[0016]
When vibration occurs in the object on which the optical fiber 10 is laid, the vibration is transmitted to the optical fiber 10 and the wavelength of the return light transmitted through the optical fiber 10 changes. Therefore, 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.
[0017]
Therefore, 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.
[0018]
Therefore, in the first embodiment, the vibration pattern of the vibration generated when the rescue-requiring person or the accompanying person accompanying 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.
[0019]
More specifically, in the detection unit 22, 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 makes a rescue request. Based on the judgment result, the occurrence of a rescue request is detected.
[0020]
Here, an example of a method in which 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 will be described.
[0021]
(A1) Method A1
First, method A1 will be described.
In the method A1, 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).
[0022]
For example, the vibration of a specific rhythm is a continuous tapping sound that does not occur in normal times. Alternatively, the vibration of a specific rhythm is a vibration sound of a predetermined rhythm. For example, 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.
[0023]
Further, in the method A1, 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 multiple 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.
[0024]
(A2) Method A2
Next, method A2 will be described.
In the method A2, 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.
[0025]
The vibration pattern included in the return light received by the receiving unit 21 also includes a vibration pattern of vibration generated by the sound generated in or around the object.
Therefore, the detection unit 22 can recognize the voice generated in or around the object by analyzing the dynamic change of the vibration pattern included in the return light.
[0026]
Therefore, for example, the detection unit 22 is a list of voice words (for example, voice words such as "help" and "car") that the rescuer or a companion may use when requesting 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.
[0027]
Note that the detection unit 22 may detect a vibration pattern corresponding to a screaming sound such as "car" by using pattern matching. In this case, the detection unit 22 stores the vibration pattern of the screaming sound in advance as a matching pattern, and uses the same method as the method A1 described above to add the vibration pattern included in the return light to the vibration pattern corresponding to the screaming sound. It is sufficient to judge whether or not is included.
[0028]
Subsequently, a specific configuration example for realizing the first embodiment will be described.
(B1) Configuration B1
First, the configuration B1 will be described with reference to FIG.
As shown in FIG. 2, the configuration B1 is an example of using the existing optical fiber already laid on the utility poles TP1 to TP3 as the optical fiber 10. In the example of FIG. 2, utility poles TP1 to TP3 are objects. Hereinafter, when it is not specified which utility pole TP1 to TP3, it is referred to as a utility pole TP.
[0029]
Further, in each of the utility poles TP1 to TP3, in order to realize the above-mentioned method A1, a hammer for hitting the utility pole TP with a specific rhythm when a rescuer or a companion makes a rescue request in the event of a disaster or the like. Items such as H may be installed.
[0030]
However, in order for the rescuer or companion to hit the utility pole TP with a specific rhythm, the rescuer or companion must 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.
[0031]
Further, in each of the utility poles TP1 to TP3, in order to realize the above-mentioned method A2, 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.
[0032]
Further, each of the utility poles TP1 to TP3 may be provided with an output unit 30 for notifying the rescuer 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.
[0033]
Note that 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 configuration is not limited to this. As the optical fiber 10, an existing optical fiber already laid in another object may be used. Another object is, for example, a bridge, Tunnels, roads, etc.
[0034]
(B2) Configuration B2
Subsequently, the configuration B2 will be described with reference to FIG.
As shown in FIG. 4, the configuration B2 is an example of newly laying the optical fiber 10. In the example of FIG. 4, the optical fiber 10 is newly laid on the objects OB1 and OB2. Hereinafter, when it is not specified which object OB1 or OB2 is, it is referred to as an object OB.
[0035]
Further, as in the configuration B1 described above, 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 a specific rhythm may be the same as the method described in the above-mentioned configuration B1.
[0036]
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 when a disaster occurs, and for example, an evacuation map display board, a telephone box, or the like is suitable.
[0037]
(B3) Configuration B3
Subsequently, the configuration B3 will be described with reference to FIG.
The configuration B2 described above was an example of laying one optical fiber 10 on the objects OB1 and OB2.
On the other hand, 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 the above-mentioned configuration B2.
[0038]
Subsequently, with reference to FIG. 6, an operation example of the optical fiber sensing system according to the first embodiment will be described.
As shown in FIG. 6, the receiving unit 21 receives the return light including the vibration pattern from the optical fiber 10 (step S11).
[0039]
Subsequently, 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, for example, by using any of the above-mentioned methods A1 and A2.
[0040]
As described above, according to the first embodiment, 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. This makes it possible to quickly detect a person requiring rescue when a disaster occurs.
[0041]
At this time, the detection unit 22 generated a rescue request when the vibration pattern included in the return light includes a vibration pattern having a specific rhythm or a vibration pattern corresponding to a voice requesting rescue. Judge. As a result, in the event of a disaster, 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.
[0042]

Subsequently, a configuration example of the optical fiber sensing system according to the second embodiment will be described with reference to FIG. 7.
[0043]
As shown in FIG. 7, 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.
[0044]
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. Further, the notification method may be, for example, a method of displaying a GUI (Graphical User Interface) screen on a display unit 40 such as a display or a monitor of a 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.
[0045]
Subsequently, with reference to FIG. 8, an operation example of the optical fiber sensing system according to the second embodiment will be described.
As shown in FIG. 8, first, as in steps S11 to S12 of FIG. 6, the receiving unit 21 receives the return light including the vibration pattern from the optical fiber 10 (step S21), and then the detecting unit. 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).
[0046]
When the detection unit 22 determines that the rescue request has occurred in step S22 (Yes in 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, outputting by voice, or the like that a rescue request has occurred, as described above.
[0047]
As described above, according to the second embodiment, 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.
[0048]

The optical fiber sensing system according to the third embodiment has the same configuration itself as the configuration of the second embodiment described above, but has expanded the functions of the detection unit 22 and the notification unit 23.
[0049]
When the detection unit 22 determines that a rescue request has occurred, the detection unit 22 identifies 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). Based on the time difference between the time when the receiving unit 21 receives the included return light and the time difference, 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.
[0050]
Further, 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. In the example of FIG. 9, 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. ..
[0051]
The method for 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.
For example, 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.
[0052]
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. Here, 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 place X where the rescue request is generated is mapped and displayed. When a rescue request is made at a plurality of places, the rescue request may be mapped and displayed at the plurality of places on the map. In addition, the map shown in FIG. 10 can be enlarged or reduced as needed.
[0053]
Subsequently, with reference to FIG. 11, an operation example of the optical fiber sensing system according to the third embodiment will be described.
As shown in FIG. 11, first, steps S31 to S32 similar to steps S21 to S22 in FIG. 8 are performed.
[0054]
When 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 place where the rescue request has occurred based on the return light received by the reception unit 21 (step). S33) This specification may be performed by using, for example, the method using the correspondence table described above.
[0055]
Subsequently, the notification unit 23 notifies the notification destination of the place where the rescue request has occurred (step S34). This notification may be performed, for example, by using the GUI screen shown in FIG. 10 described above.
[0056]
Note that the notification unit 23 may determine the notification destination according to the place and timing when the rescue request is generated.
For example, the notification unit 23 may determine a local government or the like that is close to the place where the rescue request is made or has jurisdiction over the place as the notification destination.
Also, depending on the notification destination, there may be a shortage of manpower when a rescue request is made. Therefore, the notification unit 23 stores in advance the priority of the notification destination 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.
[0057]
As described above, according to the third embodiment, when 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, and 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.
[0058]

In the third embodiment described above, the notification unit 23 maps and displays the place where the rescue request is made on the map. Since this display can identify the position (distribution) where the rescue-requiring person exists, it is also possible to identify the disaster situation. Either the detection unit 22 or the notification unit 23 may specify the damage situation.
[0059]
Further, in the above-described embodiment, 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.
[0060]

Subsequently, with reference to FIG. 12, the hardware configuration of the computer 50 that realizes the optical fiber sensing device 20 will be described.
[0061]
As shown in FIG. 12, 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.
[0062]
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 may be, for example, an HDD (Hard Disk Drive), SSD (Solid State Drive), or a storage device such as a memory card. Further, the storage 503 may be a memory such as RAM or ROM.
[0063]
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. Here, when executing each of the above programs, the processor 501 may read these programs on the memory 502 and then execute the programs, or may execute the programs without reading them onto the memory 502. Further, 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.
[0064]
Further, the above-mentioned program can be stored by using various types of non-transitory computer readable medium and supplied to a computer (including a computer 50). 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. , May be supplied to the computer by various types of transient computer readable media. Examples of transient computer readable media include electrical signals, optical signals, and electromagnetic waves. 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.
[0065]
The input / output interface 504 is connected to a display device 5041, an input device 5042, a 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.
[0066]
The communication interface 505 sends and receives data to and from an external device. For example, the communication interface 505 communicates with an external device via a wired communication path or a wireless communication path.
[0067]
Although the present disclosure has been described above with reference to the embodiments, the present disclosure is not limited to the above-described embodiments. Various changes that can be understood by those skilled in the art can be made to the structure and details of the present disclosure within the scope of the present disclosure.
For example, the above-described embodiment may be used in combination in part or in whole.
[0068]
Further, a part or all of the above embodiments may be described as in the following appendix, but the present invention is not limited to the following.
(Appendix 1)
Optical fiber and
A receiving unit that receives an optical signal including a vibration pattern from the optical fiber,
A detector that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
An optical fiber sensing system equipped with.
(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 described in 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 described in Appendix 1.
(Appendix 4)
When the detection unit determines that the rescue request has occurred, it is further provided with a notification unit that notifies the notification destination that the rescue request has occurred.
The optical fiber sensing system according to any one of Supplementary note 1 to 3.
(Appendix 5)
When 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.
When the detection unit determines that the rescue request has occurred, the notification unit determines the notification destination according to the place where the rescue request is generated.
The optical fiber sensing system described in Appendix 4.
(Appendix 6)
Further equipped with a display unit
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 system described in Appendix 5.
(Appendix 7)
A receiver that receives an optical signal including a vibration pattern from an optical fiber,
A detector that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
An optical fiber sensing device equipped with.
(Appendix 8)
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 described in Appendix 7.
(Appendix 9)
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 described in Appendix 7.
(Appendix 10)
When the detection unit determines that the rescue request has occurred, it is further provided with a notification unit that notifies the notification destination that the rescue request has occurred.
The optical fiber sensing device according to any one of Supplementary note 7 to 9.
(Appendix 11)
When 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.
When the detection unit determines that the rescue request has occurred, 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.
The reception step of receiving an optical signal including a vibration pattern from an optical fiber,
A detection step that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
Rescue request detection method including.
(Appendix 14)
In the detection step, when the vibration pattern included in the optical signal includes a vibration pattern of a specific time signature, it is determined that the rescue request has occurred.
The rescue request detection method described in 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 described in Appendix 13.
(Appendix 16)
If it is determined that the rescue request has occurred in the detection step, the notification step for notifying the notification destination that the rescue request has occurred is further included.
The rescue request detection method according to any one of Appendix 13 to 15.
(Appendix 17)
In the detection step, when it is determined that the rescue request has occurred, the place where the rescue request has occurred is specified based on the optical signal.
In 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 rescue request detection method described in Appendix 16.
(Appendix 18)
In 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.
The rescue request detection method described in Appendix 17.
[0069]
This application claims priority on the basis of Japanese Application Japanese Patent Application No. 2019-148296 filed on August 13, 2019, and incorporates all of its disclosures herein.
Code description
[0070]
10 Optical fiber
20 Optical fiber sensing equipment
21 Receiver
22 Detection unit
23 Notification unit
30 Output section
40 display unit
50 computers
501 processor
502 memory
503 storage
504 I / O interface
5041 Display device
5042 input device
5043 sound output device
505 communication interface
TP1 to TP3 utility poles
OB1, OB2 objects
H hammer
M microphone
The scope of the claims
[Claim 1]
Optical fiber and
A receiving unit that receives an optical signal including a vibration pattern from the optical fiber,
A detector that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
An optical fiber sensing system equipped with.
[Claim 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 claim 1.
[Claim 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 claim 1.
[Claim 4]
When the detection unit determines that the rescue request has occurred, it is further provided with a notification unit that notifies the notification destination that the rescue request has occurred.
The optical fiber sensing system according to any one of claims 1 to 3.
[Claim 5]
When 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.
When the detection unit determines that the rescue request has occurred, the notification unit determines the notification destination according to the place where the rescue request is generated.
The optical fiber sensing system according to claim 4.
[Claim 6]
Further equipped with a display unit
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 system according to claim 5.
[Claim 7]
A receiver that receives an optical signal including a vibration pattern from an optical fiber,
A detector that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
An optical fiber sensing device equipped with.
[Claim 8]
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 claim 7.
[Claim 9]
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 claim 7.
[Claim 10]
The detector determined that the rescue request had occurred.In this case, a notification unit for notifying the notification destination that the rescue request has occurred is further provided.
The optical fiber sensing device according to any one of claims 7 to 9.
[Claim 11]
When 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.
When the detection unit determines that the rescue request has occurred, the notification unit determines the notification destination according to the place where the rescue request is generated.
The optical fiber sensing device according to claim 10.
[Claim 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 claim 11.
[Claim 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 that detects the occurrence of a rescue request based on the vibration pattern included in the optical signal,
Rescue request detection method including.
[Claim 14]
In the detection step, when the vibration pattern included in the optical signal includes a vibration pattern of a specific time signature, it is determined that the rescue request has occurred.
The rescue request detection method according to claim 13.
[Claim 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 claim 13.
[Claim 16]
When it is determined that the rescue request has occurred in the detection step, the notification step for notifying the notification destination that the rescue request has occurred is further included.
The rescue request detection method according to any one of claims 13 to 15.
[Claim 17]
In the detection step, when it is determined that the rescue request has occurred, the place where the rescue request has occurred is specified based on the optical signal.
In 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 rescue request detection method according to claim 16.
[Claim 18]
In 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.
The rescue request detection method according to claim 17.