WO2016151716A1 - センサ端末の故障または異常の検出方法 - Google Patents
センサ端末の故障または異常の検出方法 Download PDFInfo
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- WO2016151716A1 WO2016151716A1 PCT/JP2015/058654 JP2015058654W WO2016151716A1 WO 2016151716 A1 WO2016151716 A1 WO 2016151716A1 JP 2015058654 W JP2015058654 W JP 2015058654W WO 2016151716 A1 WO2016151716 A1 WO 2016151716A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
- G01H3/005—Testing or calibrating of detectors covered by the subgroups of G01H3/00
Definitions
- the determination whether the values of the first received signal and the second received signal match or does not match is made quantitatively using an index based on probability statistics.
- a method of determining based on a correlation coefficient will be described with reference to FIG.
- FIG. 16 is an example of the first vibration receiving signal and the second vibration receiving signal received from the first sensor terminal 1 and the second sensor terminal 2, respectively.
- the first received signal and the second received signal include errors, and thus do not completely match.
- these correlation coefficients are calculated by the following (Equation 1).
- C is the correlation coefficient
- x i is the i th sample value of the first received signal
- X is the average value of the first received signal
- y i is the i th sample value of the second received signal
- Y is the average value of the second received signal
- N is the number of samples of the first received signal and the second received signal.
- the external vibration detected by the sensor terminal 1 by the detection method of the present invention may be generated using a vibration generator, or may be natural vibration applied by the surrounding environment.
- a vibration generator is not necessary, and the storage device can be further reduced in cost.
- FIG. 2 is a block diagram showing the internal structure of the sensor terminal 1.
- the sensor terminal 1 includes a sensor unit 3 including sensors 1 to L, a communication unit 4 including a communication microcomputer and a communication circuit, a microcomputer 5, and a memory 6.
- the sensors 1 to L constituting the sensor unit 3 are, for example, an acceleration sensor, a speed sensor, a GNSS geophone, a temperature sensor, an illuminance sensor, a humidity sensor, an atmospheric pressure sensor, etc., and are composed of at least one sensor. .
- the communication unit 4 preferably performs wireless communication with the communication circuit 8 of the storage device 2, for example, wireless LAN such as IEEE802.11a, b, g, n, Bluetooth (registered trademark), transferjet, UWB, etc.
- Wireless PAN system can be used.
- a wireless communication method is used for the communication unit 4
- an antenna, a coupler, or the like is connected to the terminal.
- the communication part 4 may be implement
- FIG. 3 is a block diagram of an apparatus configuration that can be used in the detection method of the present invention.
- N sensor terminals 1 are stored in slots 1 to N of the storage device 2 (here, slots 1 to N are slots of arbitrary coordinates in which the sensor terminals 1 are stored).
- the storage device 2 includes a plurality of communication circuits 8 for connecting to the sensor terminal 1, a CPU 9, and a communication circuit 10 for connecting to an upper external device.
- the storage device 2 detects that the sensor terminal 1 is mounted in each slot by means of detecting whether or not the sensor terminal 1 is stored, which is not shown in FIG. 3, and detects the sensor via the communication circuit 8.
- a connection is established with the terminal 1 and a vibration receiving signal is received.
- the CPU 9 is programmed with a comparison operation unit, and performs a comparison procedure on the received signal.
- the communication circuit 10 can transmit the received signal or the result of the comparison procedure to a host server or storage.
- the communication circuit 4 is, for example, a wireless LAN such as IEEE802.11a, b, g, or n, or a wireless PAN system such as Bluetooth, transferjet, or UWB, and an RF circuit portion and a baseband circuit portion. Electrical signals output from the sensors 1 to L included in the sensor unit 3 of the sensor terminal 1 are sent to the CPU 9 via the communication circuit 4.
- a wireless LAN such as IEEE802.11a, b, g, or n
- a wireless PAN system such as Bluetooth, transferjet, or UWB
- FIG. 17 shows an example of a block configuration of internal processing of the CPU 9.
- the sensor data is stored in the sensor data storage unit via the sensor data receiving unit.
- the sensor data stored in the sensor data storage unit at least two data sets are read out by the sensor data selection unit, passed to the comparison operation unit, and comparison operation is performed.
- the comparison calculation result output from the comparison calculation unit is stored in the comparison calculation data storage unit, and the comparison result determination unit determines match / mismatch with reference to a specific threshold value.
- the determination result is sent to the communication circuit 10 via the data transmission unit and stored in a higher-level database or the like.
- FIG. 4 is a diagram showing a slot arrangement of the storage device.
- the slots are arranged in a grid pattern, and are expressed by coordinates such as slot (i, j).
- i and j are arbitrary integers.
- the slot arrangement shown here represents each slot for accommodating the sensor terminal 1 in the schematic diagram shown in FIG. 1, for example, and slot (1, 1) in FIG. 4 is the uppermost left slot in FIG.
- the four slots (I, J) correspond to the lower right slot in FIG.
- FIG. 5 is a process flow diagram in the apparatus configuration.
- the storage device 2 checks whether or not the sensor terminal 1 is stored in each slot. Subsequently, when the storage of the sensor terminal 1 is detected, a comparison procedure is performed. Subsequently, when it is determined that the operation is normal as a result of the comparison procedure, the process is terminated. On the other hand, if it is determined that there is a failure or abnormality, the failure is notified to the upper server and the procedure is terminated.
- FIG. 6 is a process flow diagram of a comparison procedure in the apparatus configuration.
- the storage device 2 turns on the power of the sensor terminal 1 in the slot (i, j) and the slot (i + 1, j).
- the time-series data s i, j and s i + 1, j of the received signal of the sensor terminal 1 in the slot (i, j) and the slot (i + 1, j) are received.
- a comparison operation is performed on s i, j and s i + 1, j .
- the correlation value is equal to or greater than the reference value as a result of the comparison calculation, it is determined that both the sensor terminals 1 in the slot (i, j) and the slot (i + 1, j) are normal, and the procedure is completed. On the other hand, if the correlation value is less than or equal to the reference value, the sensor terminals 1 in the slot (i, j) and the slot (i, j + 1) are subsequently turned ON. Subsequently, the time series data s i, j , s i, j + 1 of the received signal of the sensor terminal 1 in the slot (i, j) and the slot (i, j + 1) is received.
- a comparison operation is performed on s i, j and s i, j + 1 . If the correlation value is greater than or equal to the reference value as a result of the comparison calculation, it is determined that the sensor terminal 1 in slot (i, j) is normal and the sensor terminal in slot (i + 1, j) is faulty or abnormal, and the procedure is completed. To do. On the other hand, if the correlation value is less than the reference value, it is determined that the sensor terminal 1 in the slot (i, j) is faulty or abnormal and the sensor terminal in the slot (i + 1, j) is normal, and the procedure is completed.
- a wireless LAN such as IEEE802.11a, b, g, or n
- a wireless PAN system such as Bluetooth, transferjet, or UWB
- an antenna, a coupler, or the like is connected to the terminal.
- the communication part 4 may be implement
- the CPU 9 is programmed with a comparison operation unit, and performs a comparison procedure on the received signal.
- the communication circuit 10 can transmit the received signal or the result of the comparison procedure to a host server or storage.
- the power supply means 11 can charge the sensor terminal 1 stored in the storage device 2, and the charging procedure is performed based on a charge control unit programmed in the CPU 9.
- the CPU 9 is programmed with a data collection control unit, and the data stored in the memory 6 of the sensor terminal 1 can be collected via the communication unit 4 and the communication means 8. The collected data is stored in the memory 12 or is transmitted to a host server or storage via the communication circuit 10.
- the power supply circuit 13 supplies power to each block of the storage device 2.
- FIG. 18 shows an example of a block configuration of internal processing of the CPU 9.
- the CPU 9 has a block group corresponding to the comparison calculation unit 14, the charge control unit 15, and the data collection control unit 16.
- the comparison calculation unit 14 first stores the sensor data in the sensor data storage unit via the reception unit. Subsequently, at least two data sets are read out from the sensor data stored in the sensor data storage unit by the sensor data selection unit, passed to the comparison calculation unit, and a comparison calculation is performed. The comparison calculation result output from the comparison calculation unit is stored in the comparison calculation data storage unit, and the comparison result determination unit determines match / mismatch with reference to a specific threshold value. The determination result is sent to the communication circuit 10 via the data transmission unit and stored in a higher-level database or the like. In addition, when the comparison result determination unit determines that the sensor data does not match, the result is transmitted to the sensor data selection unit, and the data set that does not match is compared with another data set. Identify.
- the charge control unit 15 selects what should be charged from the sensor terminals 1 mounted in the slots by the charge management unit, and issues a command to the power supply unit.
- the power supply unit supplies power from the power supply circuit 13 to the power supply unit 11 connected to the selected sensor terminal 1.
- FIG. 10 is an example of a vibration receiving signal output from the sensor terminal.
- the vibration receiving signal is time series data of acceleration.
- the time sampling interval is on the order of several microseconds to several milliseconds, but other values may be taken according to the required value of analysis accuracy.
- Seismic exploration generally uses data output by a one-dimensional acceleration sensor in the vertical direction with respect to the ground surface. However, for more advanced seismic exploration, triaxial acceleration sensors and other auxiliary sensor data may be used.
- Comparison calculation for time series data consisting of median values of received signals s i, j and received signals s i-1, j , s i + 1, j , s i, j-1 , s i, j + 1
- the failure or abnormality of the sensor terminal 1 stored in the slot (i, j) is detected.
- comparison operation the above-described plurality of comparison operations may be performed together.
- FIG. 14 is a schematic diagram of a second example of the storage device 2.
- FIG. 14 shows a drawer type in which flat storage devices 2 are stacked in the vertical direction. The number of sensor terminals 1 that can be stored can be increased.
- FIG. 15 is a schematic diagram of a third example of the storage device 2.
- the storage devices 2 shown in FIGS. 1, 13, and 14 are all shown in a structure in which the sensor terminals 1 are arranged in a grid pattern.
- the arrangement method may not be a grid pattern.
- FIG. It is a case where it arranges in a shape.
- the storage efficiency can be increased by arranging the sensor terminal 1 in a hexagonal lattice shape.
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- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
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Abstract
Description
2…収納装置、
3…センサ部、
4…通信部、
5…マイコン、
6…メモリ、
7…電源部、
8…通信手段、
9…CPU、
10…電源回路、
11…給電手段、
12…メモリ、
13…電源回路、
14…比較演算部、
15…充電制御部、
16…データ収集部、
Claims (8)
- 外部からの振動を検出するセンサを有するセンサ端末を複数個準備し、前記振動を前記複数個のセンサ端末が受振して受振信号を出力し、第1のセンサ端末が出力する第1の受振信号と、第2のセンサ端末が出力する第2の受振信号を比較することにより、前記第1または第2センサの少なくとも一方が故障または異常であることを検出することを特徴とするセンサ端末の故障または異常の検出方法。
- 前記第1のセンサ端末と、前記第2のセンサ端末は、隣り合って設けられていることを特徴とする請求項1記載のセンサ端末の故障または異常の検出方法。
- 前記複数個のセンサ端末は、そのセンサ端末の収納部が格子状に設けられ、前記第1のセンサ端末と前記第2のセンサ端末は、互いに隣接したスロットに収納されたセンサ端末から選ばれることを特徴とする請求項1記載のセンサ端末の故障または異常の検出方法。
- 前記外部からの振動は、センサ外部から伝搬されるところの、自然振動であることを特徴とする請求項1記載のセンサ端末の故障または異常の検出方法。
- 外部からの振動を検出するセンサを有するセンサ端末を複数個準備し、前記振動を前記複数個のセンサ端末が受振して受振信号を出力し、第1のセンサを有する第1のセンサ端末が出力する第1の受振信号と、その他の少なくとも2つ以上のセンサ端末が出力する受振信号に基づいて計算された参照用受振信号とを比較することにより、前記第1のセンサの故障または異常を検出することを特徴とするセンサ端末の故障または異常の検出方法。
- 前記複数個のセンサ端末は格子状に配列されたスロットに1つずつ収納され、
前記第1のセンサ端末と、前記その他の少なくとも2つ以上のセンサ端末とは、互いに隣接したスロットに収納されたセンサ端末から選ばれることを特徴とする請求項5記載のセンサ端末の故障または異常の検出方法。 - 前記外部からの振動は、センサ外部から伝搬されるところの、自然振動であることを特徴とする請求項5記載のセンサ端末の故障または異常の検出方法。
- 前記外部からの振動は、センサ外部から伝搬されるところの、自然振動であることを特徴とする請求項5記載のセンサ端末の故障または異常の検出方法。
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PCT/JP2015/058654 WO2016151716A1 (ja) | 2015-03-23 | 2015-03-23 | センサ端末の故障または異常の検出方法 |
JP2017507179A JP6294563B2 (ja) | 2015-03-23 | 2015-03-23 | センサ端末の故障または異常の検出方法 |
US15/518,896 US10458959B2 (en) | 2015-03-23 | 2015-03-23 | Method of detecting failure or anomaly of sensor terminal |
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PCT/JP2015/058654 WO2016151716A1 (ja) | 2015-03-23 | 2015-03-23 | センサ端末の故障または異常の検出方法 |
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WO2022004627A1 (ja) * | 2020-06-29 | 2022-01-06 | 日本音響エンジニアリング株式会社 | 故障診断方法、騒音測定装置、及び故障診断システム |
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US10458959B2 (en) * | 2015-03-23 | 2019-10-29 | Hitachi, Ltd. | Method of detecting failure or anomaly of sensor terminal |
WO2017214178A1 (en) * | 2016-06-06 | 2017-12-14 | Maher David P | Anomaly detection systems and methods |
IT201600130230A1 (it) * | 2016-12-22 | 2018-06-22 | Nuovo Pignone Tecnologie Srl | Modulo di impianto con disposizione di sensori |
US20190320244A1 (en) * | 2018-04-16 | 2019-10-17 | Nidec Motor Corporation | Sensor module system |
CN115386448A (zh) * | 2022-08-09 | 2022-11-25 | 烟台海维软件科技有限公司 | 自动摘酒系统及装置 |
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JPS62228920A (ja) * | 1986-03-31 | 1987-10-07 | Ebara Res Co Ltd | センサの異常判別方法 |
JPH1026669A (ja) * | 1996-07-12 | 1998-01-27 | Japan Aviation Electron Ind Ltd | 地震計測装置およびこの装置を管理する方法 |
JP2000045569A (ja) * | 1998-07-31 | 2000-02-15 | Tokico Ltd | 制振装置 |
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US6606909B2 (en) * | 2001-08-16 | 2003-08-19 | Lockheed Martin Corporation | Method and apparatus to conduct ultrasonic flaw detection for multi-layered structure |
FR2833359B1 (fr) | 2001-12-10 | 2004-04-23 | Inst Francais Du Petrole | Systeme d'acquisition de donnees sismiques utilisant des stations d'acquisition posees sur le fond marin |
US7146845B2 (en) * | 2004-03-24 | 2006-12-12 | Vega Grieshaber Kg | Method for operating tests of vibration level switch sensors and corresponding vibration level switch |
FR2957668B1 (fr) * | 2010-03-19 | 2012-10-19 | Eurocopter France | Ensemble mecanique muni d'un moyen de surveillance d'anomalie structurale, boite de transmission munie d'un tel ensemble mecanique, et procede de surveillance d'anomalie structurale |
US10458959B2 (en) * | 2015-03-23 | 2019-10-29 | Hitachi, Ltd. | Method of detecting failure or anomaly of sensor terminal |
DE102016216875A1 (de) * | 2015-09-07 | 2017-03-09 | Infineon Technologies Ag | Vorrichtung und Verfahren für eine In-situ-Kalibrierung eines photoakustischen Sensors |
GB2565707A (en) * | 2016-05-27 | 2019-02-20 | Walmart Apollo Llc | Systems and methods for arranging sensors to monitor merchandise conditions at or near shelves |
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JPS62228920A (ja) * | 1986-03-31 | 1987-10-07 | Ebara Res Co Ltd | センサの異常判別方法 |
JPH1026669A (ja) * | 1996-07-12 | 1998-01-27 | Japan Aviation Electron Ind Ltd | 地震計測装置およびこの装置を管理する方法 |
JP2000045569A (ja) * | 1998-07-31 | 2000-02-15 | Tokico Ltd | 制振装置 |
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WO2022004627A1 (ja) * | 2020-06-29 | 2022-01-06 | 日本音響エンジニアリング株式会社 | 故障診断方法、騒音測定装置、及び故障診断システム |
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US10458959B2 (en) | 2019-10-29 |
JP6294563B2 (ja) | 2018-03-14 |
US20170241958A1 (en) | 2017-08-24 |
JPWO2016151716A1 (ja) | 2017-06-22 |
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