Odor detection device, odor detection method, and program

Patent metadata

Field	Value
Publication number	US-12442806-B2
Application number	US-202117928239-A
Country	US
Kind code	B2
Filing date	May 13, 2021
Priority date	May 29, 2020
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

An odor detection device ( 1 ) includes an odor sensor ( 10 ), environmental information measurement means ( 11, 12 ), odor information collection means ( 20 ), difference information acquisition means ( 21 ), and correction means ( 22 ). The odor sensor ( 10 ) detects information on an odor emitted from an odor source ( 2 ). The environmental information measurement means ( 11, 12 ) measures information on an environment, correlated with the amount of water vapor contained in surrounding gas. The difference information acquisition means ( 21 ) acquires the difference amount of water vapor, indicating a difference between information on an environment surrounding the odor sensor ( 10 ) and information on an environment surrounding the odor source ( 2 ). The correction means ( 22 ) corrects information on an odor, collected by the odor information collection means ( 20 ), on the basis of difference information acquired by the difference information acquisition means ( 21 ).

First claim

The invention claimed is:

1. An odor detection device, comprising:
an odor sensor to detect information on an odor emitted from a source;
environmental information measurement means for measuring information on an environment, correlated with an amount of water vapor contained in surrounding gas;
odor information collection means for collecting the information on the odor, detected by the odor sensor;
difference information acquisition means for acquiring difference information indicating a difference between the information on the environment surrounding the odor sensor measured in a state in which the information on the odor has not been detected by the odor sensor, the information on the environment surrounding the odor sensor measured in a state in which the information on the odor has been detected by the odor sensor, and the information on the environment surrounding the source; and
correction means for correcting the information on the odor, collected by the odor information collection means, based on the difference information acquired by the difference information acquisition means.

2. The odor detection device according to claim 1 , wherein the odor sensor and the environmental information measurement means are integrated.

3. The odor detection device according to claim 1 ,
wherein the environmental information measurement means comprises:
first measurement means for measuring the information on the environment surrounding the odor sensor; and
second measurement means for measuring the information on the environment surrounding the source; and
the correction means corrects the information on the odor, based on information on a difference between the information on the environment, measured by the second measurement means, and the information on the environment, measured by the first measurement means.

4. The odor detection device according to claim 3 , further comprising:
a blowing opening through which gas is blown into the odor sensor, wherein
the blowing opening is provided with the second measurement means.

5. The odor detection device according to claim 3 , wherein a measurement unit into which the odor sensor and the first measurement means are integrated and the second measurement means are connected in wired communication.

6. The odor detection device according to claim 3 , wherein a measurement unit into which the odor sensor and the first measurement means are integrated and the second measurement means are connected in wireless communication.

7. The odor detection device according to claim 1 , wherein the odor sensor comprises a plurality of sensitive membranes to react with substances different from each other, and
outputs items of information indicating sensitivity results of the substances, as items of the information on the odor, in correspondence with the sensitive membranes, respectively, and
the correction means corrects the items of the information on the odor in correspondence with the sensitive membranes, respectively.

8. The odor detection device according to claim 7 , further comprising a storage to store a relationship between the difference information and a correction value corresponding to each of the sensitive membranes,
wherein the correction means determines the correction value corresponding to the difference information, based on the relationship stored in the storage, and corrects the odor information, based on the determined correction value.

9. The odor detection device according to claim 1 , wherein the information on the environment comprises at least one of temperature or humidity.

10. An odor detection device, comprising:
an odor sensor to detect information on an odor emitted from a source;
environmental information measurement means for measuring information on an environment, correlated with an amount of water vapor contained in surrounding gas;
odor information collection means for collecting the information on the odor, detected by the odor sensor;
difference information acquisition means for acquiring difference information indicating a difference between the information on the environment, measured in a state in which the information on the odor has not been detected by the odor sensor, and the information on the environment, measured in a state in which the information on the odor has been detected by the odor sensor; and
correction means for correcting the information on the odor, collected by the odor information collection means, based on the difference information acquired by the difference information acquisition means.

11. The odor detection device according to claim 10 , wherein the environmental information measurement means is
separate from a measurement unit comprising the odor sensor, and
removable from the measurement unit.

12. An odor detection method to be executed by an information-processing device, the odor detection method comprising:
a first measurement step of measuring information on an environment, correlated with an amount of water vapor contained in gas surrounding a source of an odor, in a state in which information on an odor is not detected by the odor sensor:
a second measurement step of detecting information on the odor by an odor sensor in a state in which the information on the odor is detected by the odor sensor and measuring information on an environment, correlated with an amount of water vapor contained in gas surrounding the odor sensor;
a difference information acquisition step of acquiring difference information indicating a difference between the information on the environment, measured in the first measurement step, and the information on the environment, measured in the second measurement step; and
a correction step of correcting the information on the odor, detected by the second measurement step, based on the difference information acquired in the difference information acquisition step.

13. An odor detection method to be executed by an information-processing device, the odor detection method comprising:
a first measurement step of measuring information on an environment, correlated with an amount of water vapor contained in gas surrounding an odor sensor, in a state in which information on an odor is not detected by the odor sensor;
a second measurement step of detecting information on an odor by the odor sensor in a state in which the information on the odor is detected by the odor sensor, and measuring the information on the environment;
a difference information acquisition step of acquiring difference information indicating a difference between the information on the environment, measured in the first measurement step, and the information on the environment, measured in the second measurement step; and
a correction step of correcting the information on the odor, detected in the second measurement step, based on the difference information acquired in the difference information acquisition step.

14. A non-transitory computer-readable storage medium storing a program causing a computer to function as:
odor information collection means for collecting information on an odor, detected by an odor sensor to react with an odor generated from a source;
difference information acquisition means for acquiring difference information indicating a difference between information on an environment, measured in a state in which the information on the odor is not detected by the odor sensor, and correlated with an amount of water vapor contained in gas surrounding the odor sensor, and information on an environment, measured in a state in which the information on the odor is detected by the odor sensor, and correlated wi

Assignees

• I Pex Inc

Inventors

• Ogata Kenji
• Suzuki Takeshi
• Sakamoto Hisatoshi
• Hayata Yuki

Classifications

• G01N2291/0256

  Adsorption, desorption, surface mass change, e.g. on biosensors · CPC title

• G01N2291/0255

  (Bio)chemical reactions, e.g. on biosensors · CPC title

• G01N33/497

  of gaseous biological material, e.g. breath · CPC title

• G01N27/02

  by investigating impedance · CPC title

• G01N29/036

  by measuring frequency or resonance of acoustic waves · CPC title