Flame detection system, reporting system, flame detection method, and non-transitory storage medium

Patent metadata

Field	Value
Publication number	US-12044573-B2
Application number	US-202017015603-A
Country	US
Kind code	B2
Filing date	Sep 9, 2020
Priority date	Mar 20, 2018
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

A flame detection system includes a determiner and an outputter. The determiner is configured to, when image processing performed on image data detects ultraviolet light, determine that a light emitting source is a fire flame. The outputter is configured to output a determination result by the determiner.

First claim

The invention claimed is:

1. A flame detection system, comprising:
a determiner configured to, when image processing performed on image data detects ultraviolet light, determine that a light emitting source is a fire flame; and
an outputter configured to output a determination result by the determiner,
wherein the determiner is configured to, when the image processing detects light within a wavelength range different from a wavelength range of the ultraviolet light, determine that the light emitting source is not the fire flame.

2. The flame detection system of claim 1 , wherein
the wavelength range of the light is a wavelength range of blue light.

3. The flame detection system according to claim 1 , wherein
the determiner determines whether or not the light emitting source is the fire flame based on a plurality of pieces of image data obtained in time sequence.

4. The flame detection system of claim 3 , wherein
the determiner is configured to, when the image processing performed on the plurality of pieces of image data successively detects the ultraviolet light, determine that the light emitting source is the fire flame.

5. The flame detection system according to claim 1 , wherein
the determiner is configured to determine whether or not the light emitting source is the fire flame based on a shape of an ultraviolet light area detected by the image processing.

6. A reporting system, comprising:
the flame detection system according to claim 1 ;
a solid-state imaging device sensitive to ultraviolet light and configured to output the image data; and
a reporting unit configured to report an abnormality in accordance with an output result of the outputter.

7. The reporting system of claim 6 , wherein
the solid-state imaging device includes a plurality of pixels arranged in an array, each of the plurality of pixels includes
a first electrode,
a photoelectric converter located on the first electrode and configured to convert light into an electric signal,
an electric charge accumulator electrically connected to the first electrode and configured to accumulate an electric charge generated by the photoelectric converter,
a second electrode located on the photoelectric converter,
a first transistor configured to cause the electric charge accumulator to output the electric charge accumulated in the electric charge accumulator,
a second transistor configured to erase the electric charge accumulated in the electric charge accumulator from the electric charge accumulator, and
a third transistor configured to select any pixel from the plurality of pixels, and the photoelectric converter is an organic film.

8. A flame detection method comprising:
a determination step of, when image processing performed on image data detects ultraviolet light, determining that a flame is a fire flame; and
an output step of outputting a determination result in the determination step,
the determination step including, when the image processing detects light within a wavelength range different from a wavelength range of the ultraviolet light, determining that the light emitting source is not the fire flame.

9. A non-transitory storage medium storing a computer program configured to cause a computer system to execute the flame detection method of claim 8 .

10. A flame detection system, comprising:
a solid-state imaging device including first pixels and second pixels arranged in a two-dimensional grid pattern, the second pixels being provided with filters;
a determiner configured to
create first image data from first pixel information of the first pixels,
create second image data from second pixel information of the second pixels, and
determine, based on a luminance value of each of the first image data and the second image data, that an area from which light having a first wavelength is emitted represents a fire flame; and

an outputter configured to output a determination result by the determiner,
wherein the determiner is configured to, when the image processing detects light within a wavelength range different from a wavelength range of the ultraviolet light, determine that the light emitting source is not the fire flame.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Okino Toru
• Hirose Yutaka

Classifications

• G01J2005/0077

  Imaging · CPC title

• G01J5/0018 Primary

  Flames, plasma or welding · CPC title

• G01J5/0014

  for sensing the radiation from gases, flames · CPC title

• G01J3/027

  Control of working procedures of a spectrometer; Failure detection; Bandwidth calculation · CPC title

• G01J3/2803

  using photoelectric array detector · CPC title