JP2019117177A5 - - Google Patents

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JP2019117177A5
JP2019117177A5 JP2018017095A JP2018017095A JP2019117177A5 JP 2019117177 A5 JP2019117177 A5 JP 2019117177A5 JP 2018017095 A JP2018017095 A JP 2018017095A JP 2018017095 A JP2018017095 A JP 2018017095A JP 2019117177 A5 JP2019117177 A5 JP 2019117177A5
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Prior art keywords
pixels
imaging
liquid leakage
leakage
detection system
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JP2018017095A
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Japanese (ja)
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JP6837446B2 (en
JP2019117177A (en
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Priority to EP18179134.4A priority Critical patent/EP3505898B1/en
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Claims (14)

機器からの液漏れを検出するための漏液検知システムであって、
前記機器から漏洩した漏液を撮像するための撮像装置と、
前記撮像装置によって取得された画像データを用いて前記液漏れの発生を検出するためのコントローラと、を備え、
前記コントローラは、
前記画像データ中において、前記機器外において変色剤との接触により変色した前記漏液の色に対応する画素数が閾値以上であるか否かを判定し、
前記画素数が前記閾値以上である場合に前記液漏れが発生したと判定する
ように構成されるとともに、
前記コントローラは、前記撮像装置からの距離に応じて設定された距離係数を用いて前記画素数を補正するように構成される
ことを特徴とする漏液検知システム。
A leakage detection system for detecting leakage from a device,
An imaging device for imaging liquid leaking from the device;
A controller for detecting the occurrence of the liquid leakage using image data obtained by the imaging device,
The controller is
In the image data, it is determined whether or not the number of pixels corresponding to the color of the liquid leaked by contact with a color change agent outside the device is equal to or greater than a threshold value.
Rutotomoni the liquid leakage is configured to determine to have occurred when the number of pixels is equal to or larger than the threshold value,
The liquid leakage detection system , wherein the controller is configured to correct the number of pixels using a distance coefficient set according to a distance from the imaging device .
前記距離係数は、前記撮像装置からの距離が大きいほど大きな値に設定される
ことを特徴とする請求項に記載の漏液検知システム。
The liquid leakage detection system according to claim 1 , wherein the distance coefficient is set to a larger value as the distance from the imaging device is larger.
前記コントローラは、撮像領域毎に各々独立に設定された重要度係数を用いて前記画素数を補正するように構成される
ことを特徴とする請求項1又は2に記載の漏液検知システム。
The controller may leak detection system according to claim 1 or 2, characterized in that it is configured to correct the number of the pixels by using the importance coefficients set each independently for each imaging area.
前記重要度係数は、前記機器からの前記液漏れのリスクが高い前記撮像領域ほど大きい値に設定される
ことを特徴とする請求項に記載の漏液検知システム。
The liquid leakage detection system according to claim 3 , wherein the importance coefficient is set to a larger value as the imaging region has a higher risk of the liquid leakage from the device.
前記コントローラは、前記液漏れの判定に関する除外領域以外の前記撮像領域で検出された画素値のみに基づき、前記液漏れの発生を判定するように構成される
ことを特徴とする請求項3又は4に記載の漏液検知システム。
Wherein the controller, according to claim 3 or 4, characterized in that it is configured to only based on the pixel value detected by the imaging region other than the excluded regions for determination of the leakage, to determine the occurrence of the leakage The leak detection system described in 1.
前記液漏れがないときの前記画素数をオフセット量として設定するための設定部をさらに備え、
前記コントローラは、前記設定部により設定された前記オフセット量を用いて前記画素数をオフセット処理するように構成される
ことを特徴とする請求項1〜の何れか一項に記載の漏液検知システム。
A setting unit for setting the number of pixels when there is no liquid leakage as an offset amount;
The controller may leak detection according to any one of claim 1 to 5, characterized in that is configured to count the pixels using the offset amount set by the setting unit to offset processing system.
前記コントローラは、前記画素数が前記閾値以上の場合に前記液漏れの発生を報知する報知部をさらに備える
ことを特徴とする請求項1〜の何れか一項に記載の漏液検知システム。
The controller may leak detection system according to any one of claim 1 to 6, wherein the number of pixels, characterized by further comprising a notification unit for notifying the occurrence of the leakage in the case of more than the threshold value.
前記変色剤は空気中の酸素である
ことを特徴とする請求項1〜の何れか一項に記載の漏液検知システム。
The liquid leakage detection system according to any one of claims 1 to 7 , wherein the discoloring agent is oxygen in the air.
前記変色剤は前記漏液との接触により変色する顔料を含み、
前記撮像装置の撮像範囲には、前記機器の外周又は下方の少なくとも一部において前記顔料が塗布された顔料塗布領域が含まれる
ことを特徴とする請求項1〜の何れか一項に記載の漏液検知システム。
The color-changing agent includes a pigment that changes color by contact with the liquid leakage,
The imaging range of the imaging device, according to any one of claims 1-8, wherein the pigment in at least a portion of the circumference or below the device is characterized to include pigments coated region coated Leak detection system.
前記撮像装置の撮像範囲には、前記機器の下方に配置された吸液部材が含まれる
ことを特徴とする請求項1〜の何れか一項に記載の漏液検知システム。
The imaging range of the imaging device, liquid leakage detection system according to any one of claim 1 to 9, characterized in that contains liquid absorbing member which is arranged below the apparatus.
前記撮像装置で撮像された画像と、前記画素数の経時変化履歴又は前記コントローラによる判定結果との少なくとも一方を表示する表示部をさらに備える
ことを特徴とする請求項1〜10の何れか一項に記載の漏液検知システム。
An image captured by the imaging device, any one of claim 1 to 10, further comprising a display unit for displaying at least one of the determination result of the aging history or the controller of the number of pixels The leak detection system described in 1.
機器からの液漏れを検出するための漏液検知方法であって、
前記機器からの漏液を撮像装置により撮像する撮像ステップと、
前記撮像ステップで取得された画像データを用いて前記液漏れの発生を検出する検出ステップと、を備え、
前記検出ステップでは、
画像データ中において、前記機器外において変色剤との接触により変色した前記漏液の色に対応する画素数が閾値以上であるか否かを判定し、
前記画素数が前記閾値以上である場合に前記液漏れが発生したと判定するとともに、
前記撮像装置からの距離に応じて設定された距離係数を用いて前記画素数を補正する
ことを特徴とする漏液検知方法。
A leak detection method for detecting leaks from equipment,
An imaging step of imaging the leakage from the device with an imaging device ;
Detecting the occurrence of the liquid leakage using the image data acquired in the imaging step, and
In the detection step,
In the image data, it is determined whether or not the number of pixels corresponding to the color of the liquid leaked by contact with the color change agent outside the device is equal to or greater than a threshold value.
When the number of pixels is equal to or greater than the threshold, it is determined that the liquid leakage has occurred ,
The liquid leakage detection method, wherein the number of pixels is corrected using a distance coefficient set according to a distance from the imaging device .
前記画素数が前記閾値以上の場合に液漏れの発生を報知する報知ステップをさらに備える
ことを特徴とする請求項12に記載の漏液検知方法。
The liquid leakage detection method according to claim 12 , further comprising a notification step of notifying the occurrence of liquid leakage when the number of pixels is equal to or greater than the threshold value.
前記撮像ステップで撮像された画像と、前記画素数の経時変化履歴又は前記検出ステップにおける判定結果との少なくとも一方を表示する表示ステップをさらに備える
ことを特徴とする請求項12又は13に記載の漏液検知方法。
The leakage step according to claim 12 or 13 , further comprising a display step of displaying at least one of the image captured in the imaging step and the temporal change history of the number of pixels or the determination result in the detection step. Liquid detection method.
JP2018017095A 2017-12-27 2018-02-02 Leakage detection system and leak detection method Active JP6837446B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18179134.4A EP3505898B1 (en) 2017-12-27 2018-06-21 Liquid leakage detection system and liquid leakage detection method

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JP2017252104 2017-12-27
JP2017252104 2017-12-27

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JP2019117177A5 true JP2019117177A5 (en) 2019-10-31
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JP7365841B2 (en) * 2019-10-07 2023-10-20 大阪瓦斯株式会社 Water leak detection system and fuel cell device
KR102644672B1 (en) * 2020-07-14 2024-03-08 (주)에이엘포스 Method And Apparatus for Sensing Leakage Coolant

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JPH07286931A (en) * 1994-04-19 1995-10-31 Kubota Corp Method for detecting liquid leak
JP2005025328A (en) * 2003-06-30 2005-01-27 Ntt Data Corp Congestion monitoring system and congestion monitoring program
JP2005156195A (en) * 2003-11-21 2005-06-16 Furukawa Electric Co Ltd:The Oil leakage detecting body
JP4962291B2 (en) * 2007-12-13 2012-06-27 株式会社デンソー In-vehicle image processing apparatus and in-vehicle image display apparatus
JP2013101474A (en) * 2011-11-08 2013-05-23 Tohoku Electric Power Co Inc Oil leakage detector
US9810596B2 (en) * 2013-10-01 2017-11-07 The Boeing Company Leak detection in composite structures
JP6498552B2 (en) * 2015-07-15 2019-04-10 株式会社日立製作所 Oil leak detection system

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