IP Library Granted Patent US 12687538
Granted Patent B2
US 12687538 · App. 18/138,158 · Granted Jul 21, 2026

Plant state detection system and odor detector

Inventor: Manase Mizutani (Nagoya, JP)
Assignee: SINTOKOGIO, LTD.
G01N33/497A01G7/00G01N1/24G01N33/4977
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Quick Facts
Patent No.
US 12687538
App. No.
18/138,158
Granted
Jul 21, 2026
Kind
B2
Abstract

The plant state detection system includes an odor detector including an odor detection unit configured to detect an odorant emitted from a plant, and a plant state detector configured to acquire odor information detected by the odor detection unit and detect a state of the plant based on the odor information.

Claims (12)

1 . A plant state detection system comprising:

a plurality of odor detectors arranged in a cultivation area in which plants are cultivated, each odor detector including an odor detection unit configured to detect an odorant emitted from a plant; and

a plant state detector configured to acquire odor information detected by the odor detection unit and detect states of the plants based on the odor information,

wherein the plant state detector includes a display control unit configured to display the states of the plants corresponding to arrangement positions of the plurality of odor detectors, and to cause display modes for the respective arrangement positions in the cultivation area to be changed stepwise according to the degree of plant state,

wherein the plant state detector is configured to determine whether the plant is in a normal state, a caution state, or a warning state based on a detection level of the odorant; and

wherein the display control unit is configured to display the normal state, the caution state, and the warning state in different colors, and to cause display modes respectively corresponding to the normal state, the caution state, and the warning state to be displayed such that the display becomes darker as the state of the plant becomes worse.

2 . The plant state detection system according to claim 1 , wherein each odor detector comprises an environment detection unit configured to detect at least one environment value among environment values of temperature, humidity, carbon dioxide concentration, and illuminance around the plant, and

wherein the plant state detector is configured to detect or predict the states of the plants based on the at least one environment value.

3 . The plant state detection system according to claim 1 , wherein each odor detector further comprises a container configured to accommodate the odor detection unit, and a suction machine configured to suck air around the plant into the container.

4 . The plant state detection system according to claim 1 , wherein each odor detector is configured to detect at least one of green leaf volatiles, terpenes, a sulfur-based substance, and/or a moldy odor substance as the odorant.

5 . The plant state detection system according to claim 1 , wherein the plurality of odor detectors are arranged at equal intervals in the cultivation area.

6 . The plant state detection system according to claim 1 , wherein the display control unit is configured to cause temporal changes in the state of plants in the cultivation area to be displayed.