JP2019117177A5

JP2019117177A5 -

Info

Publication number: JP2019117177A5
Application number: JP2018017095A
Authority: JP
Filing date: 2018-02-02
Publication date: 2019-10-31
Anticipated expiration: 2038-02-02

Claims

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 .

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.

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.

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.

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.

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.

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.

The liquid leakage detection system according to any one of claims 1 to 7 , wherein the discoloring agent is oxygen in the air.

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.

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.

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.

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 .

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.

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.