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1. WO2016143754 - GAS LEAK LOCATION ESTIMATING DEVICE, GAS LEAK LOCATION ESTIMATING SYSTEM, GAS LEAK LOCATION ESTIMATING METHOD AND GAS LEAK LOCATION ESTIMATING PROGRAM

Publication Number WO/2016/143754
Publication Date 15.09.2016
International Application No. PCT/JP2016/057032
International Filing Date 07.03.2016
IPC
G01M 3/02 2006.01
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid tightness of structures
02by using fluid or vacuum
G01J 5/48 2006.01
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
5Radiation pyrometry
48using wholly visual means
G08B 21/12 2006.01
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
21Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
02Alarms for ensuring the safety of persons
12responsive to undesired emission of substances, e.g. pollution alarms
CPC
G01J 5/48
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
5Radiation pyrometry
48using wholly visual means
G01M 3/002
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid-tightness of structures
002by using thermal means
G01M 3/04
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid-tightness of structures
02by using fluid or vacuum
04by detecting the presence of fluid at the leakage point
G01M 3/38
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid-tightness of structures
38by using light
G01N 21/3518
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3504for analysing gases, e.g. multi-gas analysis
3518Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
G08B 21/12
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
21Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
02Alarms for ensuring the safety of persons
12responsive to undesired emission of substances, e.g. pollution alarms
Applicants
  • コニカミノルタ株式会社 KONICA MINOLTA, INC. [JP]/[JP]
Inventors
  • 高 清 KOH, Sei
Agents
  • 特許業務法人光陽国際特許事務所 KOYO INTERNATIONAL PATENT FIRM
Priority Data
2015-04565809.03.2015JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) GAS LEAK LOCATION ESTIMATING DEVICE, GAS LEAK LOCATION ESTIMATING SYSTEM, GAS LEAK LOCATION ESTIMATING METHOD AND GAS LEAK LOCATION ESTIMATING PROGRAM
(FR) DISPOSITIF D'ESTIMATION D'EMPLACEMENT DE FUITE DE GAZ, SYSTÈME D'ESTIMATION D'EMPLACEMENT DE FUITE DE GAZ, PROCÉDÉ D'ESTIMATION D'EMPLACEMENT DE FUITE DE GAZ ET PROGRAMME D'ESTIMATION D'EMPLACEMENT DE FUITE DE GAZ
(JA) ガス漏れ位置推定装置、ガス漏れ位置推定システム、ガス漏れ位置推定方法及びガス漏れ位置推定プログラム
Abstract
(EN)
The invention addresses the problem of accurately estimating the location of a gas leak. A gas leak location estimating system (100) is provided with an infrared camera (10) the image capturing range of which includes a monitored target object, and an information processing means (30) which acquires image information across a plurality of frames from the infrared camera. The information processing means is capable of executing: a block assessing process which splits the image region of each frame into a plurality of blocks, and assesses whether or not each block is a gas region; a counting process which counts, across a plurality of time-series frames, the number of times each block has been assessed, by the block assessing process, as being a gas region; and a leak location estimating process which sets as a gas leak estimated location blocks for which the count value from the counting process is equal to or greater than a certain value. For example, blocks B0611... having count values of 9 or more are set as the gas leak estimated location.
(FR)
L'invention aborde le problème visant à estimer avec précision l'emplacement d'une fuite de gaz. Un système d'estimation d'emplacement de fuite de gaz (100) comprend une caméra infrarouge (10) dont la plage de capture d'image comprend un objet cible surveillé, et un moyen de traitement d'informations (30) qui acquiert des informations d'image parmi une pluralité de trames provenant de la caméra infrarouge. Le moyen de traitement d'informations est apte à exécuter : un processus d'évaluation de bloc qui divise la zone d'image de chaque image en une pluralité de blocs, et évalue si chaque bloc est une région de gaz ou non ; un processus de comptage qui compte, parmi une pluralité de trames de séries temporelles, le nombre de fois que chaque bloc a été évalué, par le processus d'évaluation, comme étant une région de gaz ; et un processus d'estimation d'emplacement de fuite qui définit, comme l'emplacement estimé de fuite de gaz, des blocs pour lesquels la valeur de comptage du processus de comptage est égale ou supérieur à une certaine valeur. Par exemple, les blocs B0611... ayant des valeurs de comptage de 9 ou plus sont définis comme l'emplacement estimé de fuite de gaz.
(JA)
ガス漏れ位置を精度よく推定することを課題とする。ガス漏れ位置推定システム(100)は、監視対象物を撮像範囲に含む赤外線カメラ(10)と、赤外線カメラから複数のフレームに亘って画像情報を取得する情報処理手段(30)と備える。情報処理手段は、1フレームごとに画像領域を複数のブロックに分割して、ブロックごとにガス領域か否かを判別するブロック判別処理と、時系列の複数のフレームに亘り、ブロック判別処理によりガス領域と判別された回数をブロックごとにカウントするカウント処理と、カウント処理によるカウント値が所定値以上のブロックをガス漏れ推定位置として設定する漏れ位置推定処理とを実行可能にされている。例えば、カウント値が9以上のブロックB0611・・・をガス漏れ推定位置として設定する。
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