IP Library › Granted Patent US 12,602,981
Granted Patent B2
US 12,602,981 · App. 18/697,613 · Granted Apr 14, 2026

Action monitoring system and action monitoring method

Inventors: Shohei Shiraki (Toyota, JP); Koji Kawaguchi (Kasugai, JP)
Assignee: FUJI CORPORATION
G08B21/0469G08B21/0423
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Quick Facts
Patent No.
US 12,602,981
App. No.
18/697,613
Granted
Apr 14, 2026
Kind
B2
Abstract

An action monitoring system is configured to monitor an action of a monitoring target person living in a residence, and includes occupancy sensors, a storage section, and a determination section. The occupancy sensors are provided in places different from each other in the residence. The determination section is configured to store, in the storage section in advance, a specific action defined by at least a reaction order of the multiple occupancy sensors, and store a reaction time as reaction data in the storage section when any of the multiple occupancy sensors reacts. The determination section is further configured to extract a current action based on the reaction data stored in the storage section, and compare the current action with the specific action to determine whether the specific action has been normally performed.

Claims (22)

1 . An action monitoring system configured to monitor an action of a monitoring target person living in a residence, the action monitoring system comprising:

multiple occupancy sensors provided in places different from each other in the residence, the multiple occupancy sensors being configured to detect the monitoring target person;

a storage section configured to store data; and

a determination section configured to;

store, in the storage section in advance, a specific action defined by a reaction order of the multiple occupancy sensors corresponding a movement of the target person among the places that correspond to the respective multiple occupancy sensors and a predetermined execution time of the reaction order corresponding to the specific action,

store a reaction time as reaction data in the storage section when any of the multiple occupancy sensors reacts, extract a current action based on the reaction data stored in the storage section by comparing a sequence and a time of the reactions, and

compare the current action with the specific action to determine whether the specific action has been performed by comparing the sequence and the time of the reactions to the reaction order and the predetermined execution time.

2 . The action monitoring system according to claim 1 , further comprising:

a notification section configured to notify information reflecting a determination result of the determination section.

3 . The action monitoring system according to claim 1 , wherein

the specific action is defined further by any of a timing, a day of the week, a time slot, and a staying time.

4 . The action monitoring system according to claim 1 , wherein

the determination section is configured to

further extract a standard action based on the reaction data accumulated for a certain period of time in the storage section, compare the current action with the standard action to determine whether the standard action has been performed, and

change the standard action based on a timing change in the reaction data.

5 . An action monitoring method of monitoring an action of a monitoring target person living in a residence, the action monitoring method comprising:

a detection step of detecting the monitoring target person in places different from each other in the residence using multiple occupancy sensors corresponding to the places;

a first storage step of storing a specific action defined by at least a reaction order in multiple places in the detection step, in advance corresponding a movement of the target person among the places that correspond to respective multiple occupancy sensors and a predetermined execution time of the reaction order corresponding to the specific action;

a second storage step of storing a reaction time as reaction data when there is a reaction in any of the multiple places in the detection step by comparing a sequence and a time of the reactions; and

a determination step of extracting a current action based on the reaction data stored in the second storage step and comparing the current action with the specific action to determine whether the specific action has been performed by comparing the sequence and the time of the reactions to the reaction order and the predetermined execution time.

6 . The action monitoring system according to claim 1 , wherein the multiple occupancy sensors each correspond to a different room in the residence.

7 . The action monitoring method according to claim 5 , wherein the multiple occupancy sensors each correspond to a different room in the residence.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2024
From: SHIRAKI, SHOHEI; KAWAGUCHI, KOJI
To: FUJI CORPORATION
Reel/Frame 066967/0107 →
Continuity (1)
Related Publication 20250285524A1 · Sep 11, 2025
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