Granted Patent B2

US 12,607,986 · App. 18/079,117 · Granted Apr 21, 2026

Inventor: Akinobu Watanabe (Tokyo, JP)

Assignee: Hitachi, Ltd.

G05B19/4184G05B19/4183

Abstract

Claims (43)

1 . An abnormal state monitoring system comprising:

a sensor information acquisition unit configured to acquire, from a sensor configured to detect a physical health state of a worker, sensor information indicating a detection result;

a work check data holding unit configured to hold in advance, as work check data, an action of the worker assumed from a work procedure;

an abnormality detection unit configured to detect an abnormality in work by comparing the sensor information with the work check data;

a target side device provided in the vicinity of a work target, which is a target of the work, and/or the work target itself; and

a management device configured to communicate with the target side device,

wherein the target side device further includes a control unit configured to generate flag data including a flag indicating an abnormal level and state information indicating an abnormal state when the abnormality detection unit detects an abnormality, and transmit the flag data to the management device,

wherein the management device transmits instruction information to at least one of the target side device, the worker, and the work target based on the flag data received from the target side device,

wherein the flag data includes

response level and state information for determining whether the physical health state of the worker is abnormal or influenced;

importance information for determining whether a surrounding environment is influenced due to destruction or damage at a facility; and

intervention information for determining whether intervention by an expert is necessary among remote instructions,

wherein the importance information comprises a first importance state indicating a state of environmental destruction at the facility, a second importance state indicating a state of self-destruction at the facility, and a third importance state indicating a state of maintenance being required at the facility,

wherein the management device is configured to transmit, when the flag data is received from the target side device, an instruction to acquire necessary sensing data to the target side device in accordance with an abnormal level of the flag data,

wherein when the flag data indicates the first importance state, the management device is configured to request the target side device to obtain position coordinates of the worker and position coordinates of the facility using the sensor information acquisition unit, and

wherein when the flag data indicates the second and third importance states, the management device is configured to request the target side device to obtain sound and temperature information at the facility using the sensor information acquisition unit.

2 . The abnormal state monitoring system according to claim 1 , wherein

the sensor information includes at least identifiable information as to whether the worker stretches out hands to the work target, and

the work check data indicates the number of times the worker stretches out the hands to the work target and a timing at which the worker stretches out the hands to the work target.

3 . The abnormal state monitoring system according to claim 1 , wherein

the sensor is a portable measurement device,

the work check data holding unit holds a plurality of work check data corresponding to a plurality of work targets, and

the abnormality detection unit selects the work check data based on information for identifying the work target, and compares the selected work check data with the sensor information to detect an abnormality.

4 . The abnormal state monitoring system according to claim 1 , wherein

the management device includes a storage unit configured to store a data acquisition determination table in which the abnormal level, the state information, and sensing data that needs to be acquired are associated.

5 . The abnormal state monitoring system according to claim 4 , wherein

the management device

stores, in the storage unit, a handling method determination table for determining a handling method based on the abnormal level, the state information, and the sensing data, and

transmits, when the sensing data is received from the target side device, the handling method specified based on the handling method determination table to the target side device as instruction information.

6 . The abnormal state monitoring system according to claim 1 , wherein

the work target is an infrastructure facility of a construction site, and the worker is a site inspector.

7 . An abnormal state monitoring method comprising:

a work check data holding step of holding, as work check data, an action of a worker assumed from a work procedure;

a sensor information acquisition step of acquiring, from a sensor configured to detect a physical health state of the worker, sensor information indicating a detection result;

an abnormality detection step of detecting an abnormality in work by comparing the sensor information with the work check data; and

generating flag data including a flag indicating an abnormal level and state information indicating an abnormal state when the abnormality is detected,

wherein the flag data includes

response level and state information for determining whether the physical health state of the worker is abnormal or influenced;

importance information for determining whether a surrounding environment is influenced due to destruction or damage at a facility; and

intervention information for determining whether intervention by an expert is necessary among remote instructions,

wherein the importance information comprises a first importance state indicating a state of environmental destruction at the facility, a second importance state indicating a state of self-destruction at the facility, and a third importance state indicating a state of maintenance being required at the facility,

wherein when the flag data indicates the first importance state, the method further comprises obtaining position coordinates of the worker and position coordinates of the facility, and

wherein when the flag data indicates the second and third importance states, the method further comprises obtaining sound and temperature information at the facility.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (46)