IP Library › Granted Patent US 12,602,939
Granted Patent B2
US 12,602,939 · App. 18/549,657 · Granted Apr 14, 2026

Inspection system and inspection method

Inventors: Shogo Kawai (Osaka, JP); Naomi Yoshimura (Osaka, JP); Aoi Goto (Osaka, JP); Wakana Takano (Osaka, JP); Ryuichiro Oto (Osaka, JP); Shotaro Maeda (Osaka, JP); Mirei Kanetake (Osaka, JP); Takashi Namikawa (Osaka, JP); Shiho Watanabe (Osaka, JP)
Assignee: DAIKIN INDUSTRIES, LTD.
G06V20/693G01N1/38G06V10/70G06V20/698
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Quick Facts
Patent No.
US 12,602,939
App. No.
18/549,657
Granted
Apr 14, 2026
Kind
B2
Abstract

An sure, an inspection system and an inspection method that reduce the time required to inspect environmental microorganisms, are provided. The inspection system inspection system is for inspecting a microorganism or mold that is generated in an indoor environment or a device, and the inspection system includes an imaging unit configured to directly capture a sample collected from the indoor environment or the device; and an output unit configured to inspect the microorganism or the mold in image data captured by the imaging unit, and output an inspection result.

Claims (47)

1 . An inspection system for inspecting a microorganism or mold that is generated in an indoor environment or a device, the inspection system comprising:

an imaging unit configured to directly capture a sample collected from the indoor environment or the device; and

an output unit configured to inspect the microorganism or the mold in image data captured by the imaging unit, and output an inspection result,

wherein the imaging unit is configured to capture an imaging target, the imaging target being a solution collected from the indoor environment or the device, the solution being obtained by dissolving, in the solution, the sample collected from the indoor environment or the device, and the imaging target obtained without culturing the microorganism or the mold in the sample.

2 . The inspection system according to claim 1 , wherein

the imaging unit captures the sample to capture an appearance of an individual unit of the microorganism or the mold included in the sample.

3 . The inspection system according to claim 2 , wherein

the output unit displays, as the inspection result, a type of the microorganism or the mold, a ratio of the microorganism or the mold, and the image data captured by the imaging unit, and also displays any one of information indicating the indoor environment or the device, a description of the microorganism or the mold, a level of contamination, and a result of comparison with another inspection result.

4 . The inspection system according to claim 1 , wherein

the imaging unit captures the imaging target through a lens under visible light or ultraviolet light.

5 . The inspection system according to claim 1 , wherein the imaging target is collected from any of an air conditioner, an air cleaner, a humidifier, a ventilation system, a blower, or a surface of the indoor environment.

6 . The inspection system according to claim 1 , further comprising:

a first model that has completed learning configured to determine an attribute of each region in the image data.

7 . The inspection system according to claim 6 , further comprising:

a second model that has completed learning configured to determine a type of the microorganism or the mold, with respect to the region determined to include the microorganism or the mold by the first model that has completed learning.

8 . The inspection system according to claim 7 , wherein each of the regions, for which the attribute is determined by the first model that has completed learning, is 32 pixels×32 pixels or more.

9 . The inspection system according to claim 7 , wherein

the first model that has completed learning is generated by performing learning processing by using learning data, wherein

in the learning data,

the image data including a same type of the microorganism or the mold, and

position information in which a position of each of the regions determined to include the microorganism or the mold in the image data is identified by a plurality of coordinates, are associated with each other.

10 . The inspection system according to claim 7 , wherein when the type of the microorganism or the mold is determined, the second model that has completed learning counts a number of the microorganism or the mold for each determined type.

11 . The inspection system according to claim 7 , further comprising:

a portable imaging table on which the imaging target is mounted, and

a mobile terminal connected to the imaging table, wherein

the imaging table includes the imaging unit, and

the mobile terminal includes the first model that has completed learning, the second model that has completed learning, and the output unit.

12 . The inspection system according to claim 7 , wherein the first model that has completed learning is a YOLO that has completed learning.

13 . The inspection system according to claim 7 , wherein

the second model that has completed learning is generated by performing learning processing by using learning data, wherein

in the learning data,

partial image data of each of the regions determined to include the microorganism or the mold in the image data including a same type of the microorganism or the mold, and

the type of the microorganism or the mold, are associated with each other.

14 . The inspection system according to claim 7 , wherein the second model that has completed learning is a DML that has completed learning.

15 . The inspection system according to claim 1 , wherein the output unit aggregates a number of the microorganism or the mold for each type of the microorganism or the mold in the image data captured by the imaging unit, and outputs the aggregated number.

16 . The inspection system according to claim 1 , wherein the imaging target is obtained by dispersing and dissolving the collected sample in the solution.

17 . The inspection system according to claim 16 , wherein the imaging target is obtained by dispersing and dissolving, in the solution, the sample collected from an air conditioner.

18 . The inspection system according to claim 16 , wherein the imaging target is obtained by dispersing and dissolving the collected sample in a saline solution in which a surfactant is dissolved.

19 . The inspection system according to claim 16 , wherein the imaging target includes a first solution obtained by dispersing and dissolving the collected sample in a saline solution in which a surfactant is dissolved, and a second solution obtained by further diluting the first solution by using a saline solution in which a surfactant is dissolved.

20 . The inspection system according to claim 1 , wherein

the inspection system is a mobile terminal, and

the imaging unit is built in the mobile terminal.

21 . An inspection method performed by an inspection system for inspecting a microorganism or mold that is generated in an indoor environment or a device, the inspection method comprising:

an imaging step of directly capturing a sample collected from the indoor environment or the device; and

an output step of inspecting the microorganism or the mold in captured image data, and outputting an inspection result, wherein an imaging target captured during the imaging step is a solution collected from the indoor environment or the device, the solution being obtained by dissolving, in the solution, the sample collected from the indoor environment or the device, and the imaging target obtained without culturing the microorganism or the mold in the sample.

22 . The inspection method according to claim 21 , wherein

the imaging step includes capturing the sample to capture an appearance of an individual unit of the microorganism or the mold included in the sample.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2023
From: KAWAI, SHOGO; YOSHIMURA, NAOMI; GOTO, AOI; TAKANO, WAKANA; OTO, RYUICHIRO; MAEDA, SHOTARO; KANETAKE, MIREI; NAMIKAWA, TAKASHI; WATANABE, SHIHO
To: DAIKIN INDUSTRIES, LTD.
Reel/Frame 064842/0583 →
Priority Claims (2)
JP 2021-047960 · Mar 22, 2021 · national
JP 2021-161942 · Sep 30, 2021 · national
Continuity (1)
Related Publication 20240169749A1 · May 23, 2024
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