JP2012058093A5 - - Google Patents
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- JP2012058093A5 JP2012058093A5 JP2010202028A JP2010202028A JP2012058093A5 JP 2012058093 A5 JP2012058093 A5 JP 2012058093A5 JP 2010202028 A JP2010202028 A JP 2010202028A JP 2010202028 A JP2010202028 A JP 2010202028A JP 2012058093 A5 JP2012058093 A5 JP 2012058093A5
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- Japan
- Prior art keywords
- gas leak
- detection device
- leak detection
- unit
- infrared
- Prior art date
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Claims (9)
検査対象領域を撮影する赤外線カメラと、
赤外線カメラにより撮影された赤外線画像を処理する画像処理部と、
を有し、
画像処理部は、時系列に並べられた複数の赤外線画像からガス漏れによる動的なゆらぎを抽出するゆらぎ抽出部と、画像処理部の処理結果に基づいてガス漏れを判断するガス漏れ判断部とを有し、
ゆらぎ抽出部は、
所定時間の間隔で互いに隣接する赤外線画像からその画像内における輝度の変化を時系列に次々と算出する輝度変化算出部と、
輝度変化算出部による算出値の絶対値をそれぞれ算出する絶対値算出部と、
絶対値算出部により算出された各絶対値を時系列に次々と加算する絶対値加算部と、
を有し、
絶対値加算部により算出された加算値に基づいて動的なゆらぎを抽出し、
ガス漏れ判断部は、ゆらぎ抽出部により動的なゆらぎが抽出された場合、ガス漏れが発生していると判断する、
ことを特徴とするガス漏れ検出装置。 In the gas leak detection device for detecting gas leak in the inspection target region,
An infrared camera that captures the inspection area;
An image processing unit for processing an infrared image taken by an infrared camera;
Have
The image processing unit includes a fluctuation extracting unit that extracts dynamic fluctuation due to gas leakage from a plurality of infrared images arranged in time series, and a gas leakage determining unit that determines gas leakage based on a processing result of the image processing unit. Have
The fluctuation extraction unit
A luminance change calculation unit for calculating a luminance change in the image one after another from infrared images adjacent to each other at predetermined time intervals;
An absolute value calculation unit for calculating the absolute value of the calculated value by the luminance change calculation unit, and
An absolute value adding unit that adds each absolute value calculated by the absolute value calculating unit one after another in time series, and
Have
Extract dynamic fluctuations based on the addition value calculated by the absolute value addition unit,
The gas leak determination unit determines that a gas leak has occurred when dynamic fluctuation is extracted by the fluctuation extraction unit.
A gas leak detection device characterized by that.
前記所定時間は、ガス漏れによるゆらぎの周期より小さく、検査対象領域の背景における輝度の変化の周期より大きくなるような時間である、
ことを特徴とするガス漏れ検出装置。 In the gas leak detection device according to claim 1 ,
The predetermined time is a time that is smaller than the period of fluctuation due to gas leakage and larger than the period of change in luminance in the background of the region to be inspected.
A gas leak detection device characterized by that.
ゆらぎ抽出部は、加算値が所定値以上である場合、その部分を動的なゆらぎとして抽出する、
ことを特徴とするガス漏れ検出装置。 In the gas leak detection device according to claim 1 or 2 ,
When the added value is equal to or greater than a predetermined value, the fluctuation extracting unit extracts the part as dynamic fluctuation,
A gas leak detection device characterized by that.
ゆらぎ抽出部は、赤外画像中の所定の画素領域毎における加算値の最大値と最小値の差が所定値以上である場合、最大値とその周囲を動的なゆらぎとして抽出する、
ことを特徴とするガス漏れ検出装置。 In the gas leak detection device according to claim 1 or 2 ,
When the difference between the maximum value and the minimum value of the addition value for each predetermined pixel area in the infrared image is greater than or equal to the predetermined value, the fluctuation extraction unit extracts the maximum value and its surroundings as dynamic fluctuations.
A gas leak detection device characterized by that.
画像処理部は、赤外線画像内の所定の画素領域ごとで輝度を平均化し、このデータを輝度変化算出部に出力する輝度平均化部を有する、
ことを特徴とするガス漏れ検出装置。 In the gas leak detection device according to any one of claims 1 to 4 ,
The image processing unit includes a luminance averaging unit that averages the luminance for each predetermined pixel region in the infrared image and outputs the data to the luminance change calculation unit.
A gas leak detection device characterized by that.
赤外線カメラは、ガスの赤外吸光特性が現れる波長範囲の赤外線がレンズを通過することを許容し、その他の波長範囲の赤外線がレンズを通過することを防止するフィルタを有する、
ことを特徴とするガス漏れ検出装置。 In the gas leak detection device according to any one of claims 1 to 5 ,
The infrared camera has a filter that allows infrared rays in a wavelength range in which an infrared absorption characteristic of gas appears to pass through the lens and prevents infrared rays in other wavelength ranges from passing through the lens.
A gas leak detection device characterized by that.
赤外線カメラにより撮影された赤外線画像とともに、ゆらぎ抽出部により抽出されたゆらぎを表示する表示部を有することを特徴とするガス漏れ検出装置。 In the gas leak detection device according to any one of claims 1 to 6 ,
A gas leak detection apparatus comprising: a display unit for displaying fluctuations extracted by a fluctuation extraction unit together with an infrared image taken by an infrared camera.
検査対象領域を撮影する可視光カメラと、
可視光カメラにより撮影された可視光画像とともに、ゆらぎ抽出部により抽出されたゆらぎを表示する表示部と、
を有することを特徴とするガス漏れ検出装置。 In the gas leak detection device according to any one of claims 1 to 7 ,
A visible light camera for imaging the inspection area;
A display unit that displays the fluctuations extracted by the fluctuation extraction unit together with the visible light image captured by the visible light camera,
A gas leak detection device comprising:
検査対象領域を撮影する可視光カメラを有し、
画像処理部は、赤外線カメラにより撮影された赤外線画像と、可視光カメラにより撮影された可視光画像とを処理し、
ゆらぎ抽出部は、時系列に並べられた複数の赤外線及び可視光画像からガス漏れによる動的なゆらぎを抽出する、
ことを特徴とするガス漏れ検出装置。
In the gas leak detection device according to claim 1,
It has a visible light camera that images the area to be inspected,
The image processing unit processes the infrared image captured by the infrared camera and the visible light image captured by the visible light camera,
The fluctuation extraction unit extracts dynamic fluctuation due to gas leakage from a plurality of infrared and visible light images arranged in time series.
A gas leak detection device characterized by that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010202028A JP5343054B2 (en) | 2010-09-09 | 2010-09-09 | Gas leak detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010202028A JP5343054B2 (en) | 2010-09-09 | 2010-09-09 | Gas leak detection device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012058093A JP2012058093A (en) | 2012-03-22 |
| JP2012058093A5 true JP2012058093A5 (en) | 2012-12-13 |
| JP5343054B2 JP5343054B2 (en) | 2013-11-13 |
Family
ID=46055365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010202028A Active JP5343054B2 (en) | 2010-09-09 | 2010-09-09 | Gas leak detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5343054B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575475A (en) * | 2012-08-09 | 2014-02-12 | 北汽福田汽车股份有限公司 | Vehicle sealing performance detecting device and method |
| US11076113B2 (en) | 2013-09-26 | 2021-07-27 | Rosemount Inc. | Industrial process diagnostics using infrared thermal sensing |
| US10638093B2 (en) | 2013-09-26 | 2020-04-28 | Rosemount Inc. | Wireless industrial process field device with imaging |
| US9857228B2 (en) | 2014-03-25 | 2018-01-02 | Rosemount Inc. | Process conduit anomaly detection using thermal imaging |
| US10914635B2 (en) | 2014-09-29 | 2021-02-09 | Rosemount Inc. | Wireless industrial process monitor |
| JP6763367B2 (en) * | 2015-03-09 | 2020-09-30 | コニカミノルタ株式会社 | Gas leak position estimation device, gas leak position estimation system, gas leak position estimation method and gas leak position estimation program |
| WO2017073430A1 (en) * | 2015-10-29 | 2017-05-04 | コニカミノルタ株式会社 | Image processing device for gas detection, image processing method for gas detection and image processing program for gas detection |
| EP3372996B1 (en) * | 2015-12-15 | 2024-02-14 | Konica Minolta, Inc. | Gas concentration-thickness product measurement device, gas concentration-thickness product measurement method, gas concentration-thickness product measurement program, and computer-readable recording medium having gas concentration-thickness product measurement program recorded thereon |
| WO2017104617A1 (en) * | 2015-12-15 | 2017-06-22 | コニカミノルタ株式会社 | Image processing device for gas detection, image processing method for gas detection, image processing program for gas detection, computer-readable recording medium having image processing program for gas detection recorded thereon, and gas detection system |
| WO2017122660A1 (en) * | 2016-01-15 | 2017-07-20 | コニカミノルタ株式会社 | Gas visualizing apparatus, gas visualizing method, and gas visualizing program |
| JP6620878B2 (en) | 2016-03-03 | 2019-12-18 | コニカミノルタ株式会社 | Gas leak position estimation device, gas leak position estimation method, and gas leak position estimation program |
| US10908079B2 (en) | 2016-06-07 | 2021-02-02 | Konica Minolta, Inc. | Image-processing device for gas detection, image-processing method for gas detection, and image-processing program for gas detection |
| WO2018123197A1 (en) * | 2016-12-27 | 2018-07-05 | コニカミノルタ株式会社 | Gas detection-use image processing device, gas detection-use image processing method, and gas detection-use image processing program |
| WO2018123196A1 (en) * | 2016-12-27 | 2018-07-05 | コニカミノルタ株式会社 | Gas detection-use image processing device, gas detection-use image processing method, and gas detection-use image processing program |
| JPWO2018190004A1 (en) * | 2017-04-14 | 2020-02-20 | コニカミノルタ株式会社 | Pseudo-leak gas image generation apparatus and method, and gas detection apparatus |
| WO2018203480A1 (en) | 2017-05-02 | 2018-11-08 | コニカミノルタ株式会社 | Gas-detection image processing device, gas-detection image processing method, and gas-detection image processing program |
| US11302010B2 (en) | 2017-05-02 | 2022-04-12 | Konica Minolta, Inc. | Gas-detection image processing device, gas-detection image processing method, and gas-detection image processing program |
| JPWO2020008688A1 (en) | 2018-07-05 | 2021-09-30 | コニカミノルタ株式会社 | Gas surveillance image recorder, method and program |
| US11568529B2 (en) | 2018-07-25 | 2023-01-31 | Konica Minolta, Inc. | Gas detection device that visualizes gas |
| WO2020235337A1 (en) | 2019-05-20 | 2020-11-26 | コニカミノルタ株式会社 | Inspection data management system, management device, management method, and terminal device |
| WO2020250461A1 (en) | 2019-06-11 | 2020-12-17 | コニカミノルタ株式会社 | Gas monitoring device, method, and program |
| JPWO2023105856A1 (en) | 2021-12-10 | 2023-06-15 | ||
| CN114992813B (en) * | 2022-06-17 | 2023-05-12 | 珠海格力电器股份有限公司 | Method and device for detecting substance leakage, air conditioning equipment and storage medium |
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| JPS5215385A (en) * | 1975-07-25 | 1977-02-04 | Hitachi Ltd | Image recognizer |
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