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公开(公告)号：US20250134391A1
公开(公告)日：2025-05-01
申请号：US18834913
申请日：2023-02-02
Inventor： Kazuo ITOH , Tatsuo KOGA
Abstract: A human body surface temperature calculation system includes: an infrared sensor; an obtainer that obtains temperature distribution data indicating a temperature distribution in a target space which is obtained by the infrared sensor; a thermal image generator that generates a thermal image of the target space based on the temperature distribution data obtained by the obtainer; an extractor that extracts, using a machine learning model, a human region indicating a person captured in the thermal image; and a calculator that extracts a temperature value group corresponding to the human region from the temperature distribution data and calculates a body surface temperature of the person based on the temperature value group extracted.
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公开(公告)号：US20230384398A1
公开(公告)日：2023-11-30
申请号：US18249475
申请日：2021-10-05
Inventor： Tatsuya TAKAHASHI , Tatsuo KOGA
Abstract: An arc detection system includes a first obtainment unit, a second obtainment unit, and a determination unit. The first obtainment unit obtains a measurement result of current flowing in a power line to which power is supplied from a power supply or a measurement result of voltage in the power line. The second obtainment unit obtains operation information about operation of a device connected to the power line. The determination unit determines whether or not an arc fault has occurred in the power line based on the measurement result obtained by the first obtainment unit and the operation information obtained by the second obtainment unit.
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公开(公告)号：US20230341475A1
公开(公告)日：2023-10-26
申请号：US18247708
申请日：2021-10-05
Inventor： Tatsuya TAKAHASHI , Tatsuo KOGA
IPC: G01R31/58
CPC classification number: G01R31/58
Abstract: An arc detection system includes a first obtainment unit, a second obtainment unit, and a determination unit. The first obtainment unit obtains a measurement result of current flowing in a power line to which power is supplied from a power supply or a measurement result of voltage in the power line. The second obtainment unit obtains fluctuation information about a fluctuation in a load included in a device connected to the power line. The determination unit determines whether or not an arc fault has occurred in the power line based on components in a specific frequency band of the measurement result obtained by the first obtainment unit and the fluctuation information obtained by the second obtainment unit.
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14.发明公开公开(公告)号：US20230305047A1
公开(公告)日：2023-09-28
申请号：US18015056
申请日：2021-07-20
Inventor： Kazunori KIDERA , Tatsuo KOGA , Takahiro OHORI , Keita KANAMORI , Kazuya OHSHIMA
IPC: G01R31/00
CPC classification number: G01R31/002
Abstract: An arc detection device includes an obtainer and a determiner. The obtainer obtains a measurement result for a voltage applied to one target power supply line among a plurality of power supply lines to which power is supplied from a DC power source. The determiner determines, based on a component of a specific frequency band in the measurement result for the voltage obtained by the obtainer, whether there is a possibility of an arc fault occurring in the plurality of power supply lines.
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公开(公告)号：US20230094178A1
公开(公告)日：2023-03-30
申请号：US17908691
申请日：2021-03-03
Inventor： Tatsuo KOGA , Kazunori KIDERA , Keita KANAMORI
Abstract: An anomaly detection device includes: a determiner that determines whether the communication connection via a communication line connecting a DC/DC converter including a communication function and each of a DC/DC converter and an inverter has been lost; and an outputter that outputs an anomalous signal when it is determined that the communication connection has been lost.
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Patent Agency Ranking
公开(公告)号：US20240377498A1
公开(公告)日：2024-11-14
申请号：US18293178
申请日：2022-07-21
Inventor： Tatsuo KOGA , Kazuto URA , Jin YOSHIZAWA
Abstract: A position estimation system includes: an obtainer that obtains image information of an image showing an indoor space in which a target object is located; an estimator that estimates coordinates of the target object in the indoor space, based on the image information obtained; a position information obtainer that obtains target position information that is position information of the target object from a positioning system; and a controller that stores identification information of the target object in association with the coordinates estimated, the identification information being included in the target position information obtained.
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公开(公告)号：US20240295338A1
公开(公告)日：2024-09-05
申请号：US18573468
申请日：2022-06-17
Inventor： Tatsuo KOGA , Jin YOSHIZAWA , Kazuto URA
IPC: F24F11/72 , F24F120/14 , G06V40/20
CPC classification number: F24F11/72 , G06V40/25 , F24F2120/14
Abstract: An airflow control system (10) includes: an obtainer (34) that obtains image data of an interior space (50) in which an airflow is formed by an airflow generation device (40) and a person is located; an identifier (35) that identifies skeletal coordinates of the person based on the image data obtained; an estimator (36) that estimates a movement of the person based on time-series data of the skeletal coordinates identified; and a controller (37) that controls the airflow generation device (40) to suppress a disturbance of the airflow caused by the movement of the person estimated.
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公开(公告)号：US20240087433A1
公开(公告)日：2024-03-14
申请号：US18262119
申请日：2022-01-22
Inventor： Takanori AKETA , Kenichiro TANAKA , Jin YOSHIZAWA , Shingo NAGATOMO , Kazuki KITAMURA , Tatsuya TAKAHASHI , Tatsuo KOGA , Tomonori YAMADA , Kazuto URA
IPC: G08B5/36 , G01C21/20 , G05D1/02 , H05B45/20 , H05B47/105 , H05B47/155
CPC classification number: G08B5/36 , G01C21/206 , G05D1/0214 , H05B45/20 , H05B47/105 , H05B47/155 , G08G1/123
Abstract: A lighting system includes a plurality of lighting devices and a control device. The plurality of lighting devices are installed in a facility. The control device controls the plurality of lighting devices. The control device controls lighting light projected by at least one lighting device, belonging to the plurality of lighting devices, into colored lighting light, of which a color is different from a color white, to give, upon acquiring information about an event in question, a sign depending on the event in question.
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公开(公告)号：US20240072528A1
公开(公告)日：2024-02-29
申请号：US18272574
申请日：2021-02-05
Inventor： Tatsuo KOGA , Keita KANAMORI , Kazunori KIDERA , Yoshio MITSUTAKE
CPC classification number: H02H1/0015 , G01R31/12 , H02H7/20 , H02S50/10
Abstract: An arc detection device that detects an arc fault that occurs in a transmission line connecting a DC power supply that generates DC power and a power converter that converts the DC power to AC power, includes: a first determination unit that determines whether or not there is a possibility of an arc fault occurrence according to current flowing in the transmission line; a shutoff unit that temporarily stops the flow of current in the transmission line when the first determination unit determines there is a possibility of an arc fault occurrence; and a second determination unit that determines whether or not an arc fault has occurred according to an input voltage, of the power converter supplied from the DC power supply, after lifting temporary stoppage of the flow of current in the transmission line.
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公开(公告)号：US20230095385A1
公开(公告)日：2023-03-30
申请号：US17908317
申请日：2021-03-03
Inventor： Tatsuo KOGA , Kazunori KIDERA , Keita KANAMORI
Abstract: An arc detection device includes: a low-impedance circuit connected between a node on wiring connecting the positive electrode of a DC/DC converter and a plurality of DC/DC converters, extending from the positive electrode of the DC/DC converter, and branching toward the plurality of DC/DC converters and a node on wiring connecting the negative electrode of the DC/DC converter and the plurality of DC/DC converters, extending from the negative electrode of the DC/DC converter, and branching toward the plurality of DC/DC converters; an electric current detector that detects an electric current flowing through the low-impedance circuit; and an arc determiner that determines, on the basis of the electric current detected by the electric current detector whether an electric arc has occurred.
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