WO2023021598A1 - 情報処理装置、情報処理方法、コンピュータ可読媒体、及び点検システム - Google Patents

情報処理装置、情報処理方法、コンピュータ可読媒体、及び点検システム Download PDF

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Publication number
WO2023021598A1
WO2023021598A1 PCT/JP2021/030139 JP2021030139W WO2023021598A1 WO 2023021598 A1 WO2023021598 A1 WO 2023021598A1 JP 2021030139 W JP2021030139 W JP 2021030139W WO 2023021598 A1 WO2023021598 A1 WO 2023021598A1
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WIPO (PCT)
Prior art keywords
point
measurement data
information processing
information indicating
equipment
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PCT/JP2021/030139
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English (en)
French (fr)
Japanese (ja)
Inventor
聡 辻
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NEC Corp
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NEC Corp
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Application filed by NEC Corp filed Critical NEC Corp
Priority to US18/293,810 priority Critical patent/US20240280402A1/en
Priority to JP2023542077A priority patent/JP7643556B2/ja
Priority to PCT/JP2021/030139 priority patent/WO2023021598A1/ja
Publication of WO2023021598A1 publication Critical patent/WO2023021598A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • G08B25/04—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 using a single signalling line, e.g. in a closed loop

Definitions

  • the present disclosure relates to an information processing device, an information processing method, a non-transitory computer-readable medium storing a program, and an inspection system.
  • Patent Document 1 A technique for detecting anomalies in various facilities using sensors such as optical fiber sensors is known (see Patent Document 1, for example).
  • Patent Document 1 has a problem that, for example, it may not be possible to appropriately identify equipment in which an abnormality has occurred.
  • an object of the present disclosure is to provide an information processing device, an information processing method, a non-temporary computer-readable medium storing a program, and an inspection system that can appropriately identify equipment in which an abnormality has occurred. It is in.
  • an information processing device includes information indicating a first point, information indicating a second point, first measurement data measured at the first point, and at the second point Acquisition means for acquiring measured second measurement data; Control means for determining equipment to be inspected based on the data acquired by the acquisition means; and output means for outputting information based on.
  • information indicating a first point information indicating a second point
  • first measurement data measured at the first point and measured at the second point
  • An information processing method acquires second measurement data, determines equipment to be inspected based on the acquired data, and outputs information based on the determined equipment.
  • information indicating a first point information indicating a second point
  • first measurement data measured at the first point and measured at the second point
  • a computer-readable medium is provided.
  • a fourth aspect of the present disclosure provides an inspection system including an optical fiber sensor, an information processing device, and an autonomously moving inspection device.
  • the information processing device includes information indicating a first point, information indicating a second point, first measurement data measured at the first point by the optical fiber sensor, and the second point.
  • Acquisition means for acquiring the second measurement data measured by, control means for determining equipment to be inspected based on the data acquired by the acquisition means, and equipment determined by the control means and output means for transmitting a command instructing the inspection of to the autonomously moving inspection device.
  • FIG. 4 is a flowchart showing an example of processing of the information processing device according to the embodiment; It is a figure which shows an example of equipment DB which concerns on embodiment. It is a figure which shows an example of classification DB which concerns on embodiment.
  • FIG. 1 is a diagram showing an example of the configuration of an information processing device 10 according to an embodiment.
  • the information processing device 10 has an acquisition unit 11 , a control unit 12 and an output unit 13 .
  • Each of these units may be implemented by cooperation of one or more programs installed in the information processing device 10 and hardware such as the processor 101 and the memory 102 of the information processing device 10 .
  • the acquisition unit 11 acquires various types of information from a storage unit inside the information processing device 10 or from an external device. For example, the acquisition unit 11 obtains information indicating a first point, information indicating a second point, first measurement data measured at the first point, and second measurement data measured at the second point. , to get
  • control unit 12 determines the equipment to be inspected.
  • the output unit 13 outputs information based on the equipment determined by the control unit 12 .
  • FIG. 2 is a diagram showing a configuration example of the inspection system 1 according to the embodiment.
  • the inspection system 1 has an information processing device 10 and an optical fiber sensor 20 .
  • the inspection system 1 also includes an inspection device 30A and an inspection device 30B (hereinafter also simply referred to as "inspection device 30" when there is no need to distinguish between them).
  • the number of information processing devices 10, optical fiber sensors 20, and inspection devices 30 is not limited to the example in FIG. Note that the technology of the present disclosure can be used, for example, for inspection (maintenance) of various facilities such as substations, plants, factories, offices, and distribution warehouses.
  • the information processing device 10, the optical fiber sensor 20, and the inspection device 30 are connected by the network N so as to be communicable.
  • the network N include, for example, the Internet, a mobile communication system, a wireless LAN (Local Area Network), short-range wireless communication such as BLE, a LAN, and a bus.
  • mobile communication systems include, for example, fifth generation mobile communication systems (5G), fourth generation mobile communication systems (4G), third generation mobile communication systems (3G), and the like.
  • the information processing device 10 may be, for example, a device such as a server, cloud, personal computer, or smart phone.
  • the information processing device 10 provides various services using the inspection device 30 and abnormality detection of various facilities installed in the facility.
  • the information processing device 10 causes the inspection device 30 to inspect the equipment in which the abnormality has occurred.
  • the optical fiber cables of the optical fiber sensor 20 are laid along the perimeter of the site of the facility.
  • the laying position of the optical fiber cable of the optical fiber sensor 20 is not limited to the example of FIG.
  • the optical fiber sensor 20 has an optical fiber cable 21 as an information transmission medium.
  • the optical fiber sensor 20 also has a sensing device 22 connected to one end of the optical fiber cable 21 and a terminating device 23 connected to the other end of the optical fiber cable 21 .
  • the termination device 23 is a device that performs termination processing to suppress reflection of the sensing signal output from the sensing device 22 .
  • the sensing device 22 outputs a pulse wave sensing signal to the optical fiber cable 21 . Then, the sensing device 22 measures reflected signals (returned light) for sensing signals from all positions of the optical fiber cable 21 in time series. Note that when vibration or sound is applied to the optical fiber cable 21 and when the temperature changes, the light intensity of the returned light changes. The sensing device 22 calculates the position of the optical fiber cable 21 to which vibration or sound is applied, based on the round-trip time from the output of the sensing signal to the observation of the returned light whose light intensity has changed.
  • the sensing device 22 simultaneously measures application of vibration and sound at a plurality of points spaced apart by a predetermined distance (eg, 1 m). In addition, by outputting the sensing signal at a time interval at which the return light from the farthest end of the optical fiber cable 21 and the light of the sensing signal to be output next do not mix, the time of vibration or sound applied at each position is reduced. Changes over time (time transition) can be measured. Also, the optical fiber cable 21 may be laid at different heights at each point. This makes it possible to estimate the three-dimensional position of the location where the abnormality has occurred.
  • a predetermined distance eg, 1 m
  • the optical fiber sensor 20 By using the optical fiber sensor 20, installation work becomes easier compared to, for example, using a plurality of microphones or a plurality of vibration sensors. Further, when the optical fiber cable 21 for communication has already been laid, the optical fiber cable 21 can be shared for communication and maintenance of the equipment, so new laying work is not required. Moreover, since electricity does not flow through the optical fiber cable 21, it can be used in facilities where combustible gas may exist. Note that in the inspection system 1 according to the embodiment, at least one of a plurality of microphones and a plurality of vibration sensors may be used instead of or in addition to the optical fiber sensor 20 .
  • the inspection device 30 is a device having sensors for inspecting various facilities such as substations, power plants, factories, and chemical plants.
  • the inspection device 30 may have a function of performing inspection while autonomously moving around the facility.
  • the inspection device 30 may be, for example, an autonomous mobile robot that moves on the ground using wheels or legs.
  • the inspection device 30 may be, for example, a drone (unmanned aerial vehicle) or a balloon that moves by flight.
  • FIG. 3 is a diagram showing a hardware configuration example of the information processing apparatus 10 according to the embodiment.
  • the information processing device 10 (computer 100) includes a processor 101, a memory 102, and a communication interface 103. FIG. These units may be connected by a bus or the like.
  • Memory 102 stores at least a portion of program 104 .
  • Communication interface 103 includes interfaces necessary for communication with other network elements.
  • Memory 102 may be of any type suitable for a local technology network. Memory 102 may be, as a non-limiting example, a non-transitory computer-readable storage medium. Also, memory 102 may be implemented using any suitable data storage technology, such as semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed and removable memory, and the like. Although only one memory 102 is shown in computer 100, there may be several physically different memory modules in computer 100.
  • FIG. Processor 101 may be of any type.
  • Processor 101 may include one or more of a general purpose computer, a special purpose computer, a microprocessor, a Digital Signal Processor (DSP), and a processor based on a multi-core processor architecture as non-limiting examples.
  • Computer 100 may have multiple processors, such as application specific integrated circuit chips that are temporally dependent on a clock that synchronizes the main processor.
  • Embodiments of the present disclosure may be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor or other computing device.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium.
  • a computer program product comprises computer-executable instructions, such as those contained in program modules, to be executed on a device on a target real or virtual processor to perform the processes or methods of the present disclosure.
  • Program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within local or distributed devices. In a distributed device, program modules can be located in both local and remote storage media.
  • Program code for executing the methods of the present disclosure may be written in any combination of one or more programming languages. These program codes are provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus. When the program code is executed by the processor or controller, the functions/acts in the flowchart illustrations and/or implementing block diagrams are performed. Program code may run entirely on a machine, partly on a machine, as a stand-alone software package, partly on a machine, partly on a remote machine, or entirely on a remote machine or server. be.
  • Non-transitory computer-readable media include various types of tangible storage media.
  • Examples of non-transitory computer-readable media include magnetic recording media, magneto-optical recording media, optical disc media, semiconductor memories, and the like.
  • Magnetic recording media include, for example, flexible disks, magnetic tapes, hard disk drives, and the like.
  • Magneto-optical recording media include, for example, magneto-optical disks.
  • Optical disc media include, for example, Blu-ray discs, CD (Compact Disc)-ROM (Read Only Memory), CD-R (Recordable), CD-RW (ReWritable), and the like.
  • Semiconductor memories include, for example, solid state drives, mask ROMs, PROMs (Programmable ROMs), EPROMs (Erasable PROMs), flash ROMs, RAMs (random access memories), and the like.
  • the program may also be delivered to the computer by various types of transitory computer readable media. Examples of transitory computer-readable media include electrical signals, optical signals, and electromagnetic waves. Transitory computer-readable media can deliver the program to the computer via wired channels, such as wires and optical fibers, or wireless channels.
  • FIG. 4 is a flowchart showing an example of processing of the information processing apparatus 10 according to the embodiment.
  • FIG. 5 is a diagram showing an example of the equipment DB 501 according to the embodiment.
  • FIG. 6 is a diagram showing an example of the type DB 601 according to the embodiment.
  • step S1 the acquisition unit 11 of the information processing device 10 acquires measurement data of changes in amplitude (intensity) of vibration or sound measured at each predetermined position of the optical fiber cable 21, and information indicating each predetermined position. is obtained from the optical fiber sensor 20 .
  • the information indicating each predetermined position may include, for example, information on the latitude, longitude, and height of each predetermined position.
  • Information indicating each predetermined position may be registered in the sensing device 22 in advance, for example.
  • the control unit 12 of the information processing device 10 estimates the area where the abnormality occurs based on the data acquired by the acquisition unit 11 (step S2).
  • the information processing apparatus 10 may first use AI (Artificial Intelligence) or the like to determine whether or not the vibration or sound transition measured by the optical fiber sensor 20 is abnormal.
  • AI Artificial Intelligence
  • the information processing apparatus 10 calculates, for example, the difference in time (arrival time difference) in which the vibration or sound propagates from the source of the vibration or sound to each predetermined position on the optical fiber cable 21. can be calculated. Then, the information processing apparatus 10 may calculate the difference in distance from each predetermined position to the source based on the calculated arrival time differences. Then, the information processing apparatus 10 may estimate a two-dimensional or three-dimensional area in which the source is located, for example, based on the calculated distance difference.
  • control unit 12 of the information processing device 10 refers to the facility DB (Data Base) 501 and the type DB 601, and among the facilities installed in the estimated area, the measurement data acquired by the acquisition unit 11 (step S3). Thereby, for example, it is possible to appropriately identify the equipment in which the abnormality has occurred.
  • type IDs and installation position information are recorded (registered) in advance by a manager (operator) or the like in association with the facility IDs.
  • the facility DB 501 may be recorded in a recording device inside the information processing device 10 or may be recorded in a DB server or the like outside the information processing device 10 .
  • the facility ID is identification information of the facility (equipment).
  • the type ID is identification information of the type (model) of equipment.
  • the installation position is information indicating the position where the facility is installed.
  • the installation location may include latitude, longitude, and height information, for example.
  • the type DB 601 one or more abnormal data are recorded (registered) in advance by a manager (operator) or the like in association with a type ID.
  • the type DB 601 may be recorded in a recording device inside the information processing device 10 or may be recorded in a DB server or the like outside the information processing device 10 .
  • the abnormality data may be, for example, waveform data indicating changes in vibration or sound measured by the optical fiber sensor 20 or the like when an abnormality occurred in the equipment of the type related to the type ID in the past.
  • the information processing device 10 may first extract, from the facility DB 501, each facility ID installed within the area estimated to be where the source of the abnormal vibration or sound is located. Then, the information processing apparatus 10 may extract each abnormal data associated with the extracted type ID of each equipment ID from the type DB 601 .
  • the information processing apparatus 10 may calculate the degree of similarity between the waveform of the measurement data measured by the optical fiber sensor 20 and the waveform of each extracted abnormal data.
  • the information processing apparatus 10 may calculate the degree of similarity using the measurement data of the point with the largest maximum amplitude value among the measurement data of each point measured by the optical fiber sensor 20 .
  • the information processing apparatus 10 may also calculate, for example, a correlation coefficient between the waveform of the measurement data and the waveform of the abnormal data as the degree of similarity.
  • the information processing apparatus 10 may determine each type of equipment whose calculated similarity is equal to or greater than the threshold as equipment to be inspected (inspected). Further, the information processing apparatus 10 may determine each type of equipment having the highest calculated degree of similarity as equipment to be inspected (checked).
  • the output unit 13 of the information processing device 10 outputs information based on the equipment to be inspected determined by the control unit 12 (step S4).
  • the information processing apparatus 10 may transmit, for example, a command instructing inspection of the determined inspection target equipment to the inspection apparatus 30 that moves autonomously.
  • the command may include information such as the installation location of the equipment to be inspected, for example.
  • the inspection device 30 having an autonomous traveling robot, an unmanned aerial vehicle, or a balloon autonomously moves to the designated installation location of the facility to be inspected, and the image around the facility to be inspected taken by the camera is sent to the monitoring center or the like. can be sent to
  • the information processing device 10 may be a device included in one housing, but the information processing device 10 of the present disclosure is not limited to this.
  • Each unit of the information processing apparatus 10 may be implemented by cloud computing configured by one or more computers, for example.
  • at least part of the processing of the information processing device 10 may be realized by the inspection device 30, for example.
  • the information processing device 10 may be built in the housing of the inspection device 30, for example.
  • the information processing device 10 such as these is also included in an example of the "information processing device" of the present disclosure.
  • the control means selects an inspection target based on the degree of similarity between the data registered according to the model of each facility and the data based on at least one of the first measurement data and the second measurement data. determine equipment, The information processing device according to appendix 1 or 2.
  • the control means is estimating an area in which an abnormality has occurred based on the data acquired by the acquisition means; determining the equipment to be inspected based on at least one of the first measurement data and the second measurement data among the equipment installed in the estimated area; The information processing device according to at least one of Appendices 1 to 3.
  • the information indicating the first point includes information indicating the height of the first point
  • the information indicating the second point includes information indicating the height of the second point
  • the control means estimates a three-dimensional region in which an abnormality has occurred based on the data acquired by the acquisition means.
  • the information processing device according to appendix 4.
  • the output means is Sending a command instructing inspection of the equipment determined by the control means to the inspection device that moves autonomously; 6.
  • the information processing apparatus according to any one of appendices 1 to 5.
  • (Appendix 7) Acquiring information indicating a first point, information indicating a second point, first measurement data measured at the first point, and second measurement data measured at the second point, Based on the acquired data, determine the equipment to be inspected, Output information based on the determined equipment, Information processing methods.
  • (Appendix 8) Acquiring information indicating a first point, information indicating a second point, first measurement data measured at the first point, and second measurement data measured at the second point, Based on the acquired data, determine the equipment to be inspected, Output information based on the determined equipment,
  • a non-transitory computer-readable medium storing a program that causes a computer to execute a process.
  • the information processing device is Information indicating a first point, information indicating a second point, first measurement data measured at the first point by the optical fiber sensor, and second measurement data measured at the second point an acquisition means for acquiring; Control means for determining facilities to be inspected based on the data acquired by the acquisition means; an output means for transmitting a command for instructing inspection of the equipment determined by the control means to an autonomously moving inspection device; having inspection system.
  • inspection system 10 information processing device 11 acquisition unit 12 control unit 13 output unit 20 optical fiber sensor 21 optical fiber cable 22 sensing device 23 termination device 30 inspection device

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
PCT/JP2021/030139 2021-08-18 2021-08-18 情報処理装置、情報処理方法、コンピュータ可読媒体、及び点検システム Ceased WO2023021598A1 (ja)

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US18/293,810 US20240280402A1 (en) 2021-08-18 2021-08-18 Information processing device, information processing method, computer-readable medium, and inspection system
JP2023542077A JP7643556B2 (ja) 2021-08-18 2021-08-18 情報処理装置、情報処理方法、プログラム、及び点検システム
PCT/JP2021/030139 WO2023021598A1 (ja) 2021-08-18 2021-08-18 情報処理装置、情報処理方法、コンピュータ可読媒体、及び点検システム

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PCT/JP2021/030139 WO2023021598A1 (ja) 2021-08-18 2021-08-18 情報処理装置、情報処理方法、コンピュータ可読媒体、及び点検システム

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US20230213899A1 (en) * 2022-01-04 2023-07-06 SparkCognition, Inc. Mobile sensing for behavior monitoring

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WO2021024388A1 (ja) * 2019-08-06 2021-02-11 日本電気株式会社 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、及び無人機配置方法
WO2021070222A1 (ja) * 2019-10-07 2021-04-15 日本電気株式会社 光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置
WO2021149192A1 (ja) * 2020-01-22 2021-07-29 日本電気株式会社 電柱劣化検出システム、電柱劣化検出方法、及び電柱劣化検出装置

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US20230349750A1 (en) 2020-01-30 2023-11-02 Nec Corporation Structure deterioration detection system, structure deterioration detection method, and structure deterioration detection device

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WO2021024388A1 (ja) * 2019-08-06 2021-02-11 日本電気株式会社 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、及び無人機配置方法
WO2021070222A1 (ja) * 2019-10-07 2021-04-15 日本電気株式会社 光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置
WO2021149192A1 (ja) * 2020-01-22 2021-07-29 日本電気株式会社 電柱劣化検出システム、電柱劣化検出方法、及び電柱劣化検出装置

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