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    Sensor device, data acquisition method, and current monitoring system
    1.
    发明授权
    Sensor device, data acquisition method, and current monitoring system 有权

    公开(公告)号：US11762360B2

    公开(公告)日：2023-09-19

    申请号：US17230002

    申请日：2021-04-14

    Applicant: Hitachi, Ltd.

    Inventor： Yuya Ogi ,  Takuma Nishimura ,  Kazuo Ono

    IPC: G05B19/042 ,  G06N5/04 ,  G06N20/00

    CPC classification number: G05B19/0428 ,  G06N5/04 ,  G06N20/00 ,  G05B2219/24053

    Abstract: A sensor device includes: a sensor data acquisition unit that acquires sensor data of a measurement target from a sensor; a sensor data analysis unit that analyzes the data acquired by the sensor data acquisition unit; an extraction data setting unit that sets extraction conditions indicating a part desired to be extracted from among all the sensor data; a specific condition extraction unit that extracts a part from among all the sensor data based on an analysis result and the extraction conditions; and a user interface unit that allows a user to input/output information. Further, the user interface unit includes simple condition setting means by which a simple condition being at least one or more of the extraction conditions among the extraction conditions can be set in the sensor data analysis unit, and detection result display means that displays data satisfying the simple condition in the sensor data analysis unit.

    Automatic inspection system
    2.
    发明授权
    Automatic inspection system 有权

    公开(公告)号：US11422527B2

    公开(公告)日：2022-08-23

    申请号：US16825551

    申请日：2020-03-20

    Applicant: Hitachi, Ltd.

    Inventor： Reiso Sasaki ,  Kazuo Ono ,  Takuma Nishimura

    IPC: G06F8/658 ,  G06F9/44 ,  G06F9/445 ,  G06F9/455 ,  G05B19/406 ,  G06N3/08

    Abstract: A wireless endpoint provided in an automatic inspection system includes a sound collection unit that collects sounds produced by an inspection target, an analysis unit that analyzes the collected sound and obtains a degree of difference between the collected sound and a normal sound learned in advance as an analysis result, a wireless communication unit that wirelessly transmits data including the analysis result to a wireless base station, and a power supply unit that supplies power to the above units. The wireless base station manages the data received from the wireless endpoint. In response to a request from a monitoring terminal that monitors the status of the inspection target, the wireless base station transmits the analysis result retrieved from the data to the monitoring terminal. The monitoring terminal performs a process of disclosing a status of the inspection target determined from the analysis result.

    Virus detection system and virus detection method using USB relay device
    5.
    发明授权
    Virus detection system and virus detection method using USB relay device 有权

    公开(公告)号：US11372973B2

    公开(公告)日：2022-06-28

    申请号：US16462959

    申请日：2018-01-15

    Applicant: HITACHI, LTD.

    Inventor： Kei Takezawa ,  Takuma Nishimura ,  Hideki Tonooka

    IPC: G06F21/56 ,  G06F13/40 ,  G06F13/42 ,  G06F3/00 ,  G06F13/14

    Abstract: A virus detection system uses a USB relay device that can support not only the use of USB mass storage but also the use of other USB devices such as a mouse. The USB relay device has a connection switching unit for switching a connection state between a first connector unit to which a USB client is connected and a second connector unit connected to a USB host controller. The virus detection system includes a virus check engine unit that performs a virus check of a file acquired from the USB client or the USB host controller via the USB relay device. On the basis of a result of the check by the virus check engine unit, the USB relay device performs switching control of the connection state by the connection switching unit.

    Communication system, communication management method, and network management apparatus
    6.
    发明授权
    Communication system, communication management method, and network management apparatus 有权

    公开(公告)号：US11190950B2

    公开(公告)日：2021-11-30

    申请号：US16468474

    申请日：2017-12-22

    Applicant: HITACHI, LTD.

    Inventor： Ryo Nakano ,  Yuichi Igarashi ,  Takuma Nishimura

    IPC: H04W16/18 ,  H04B17/309 ,  H04B17/40 ,  H04B7/26

    Abstract: A communication system includes: storage to store location information of each of a plurality of devices capable of wireless multi-hop communication, site configuration information including location and size information of an obstacle present at a site of the plurality of devices, and communication quality information between devices; a determination unit determines whether a repeater needs to be added for each of the plurality of devices, based on communication quality information; and a decision unit calculates an expected value related to attenuation of received power between the first and second devices caused by the obstacle, and decides a location for the determination unit to add the repeater based on location information of the first device determined, location information of the second device different from the first device and communicated with the first device through the repeater, the communication quality information between the first and second device, and the site configuration information.

    Data collection apparatus and data collection method
    8.
    发明授权
    Data collection apparatus and data collection method 有权

    公开(公告)号：US10819600B2

    公开(公告)日：2020-10-27

    申请号：US16164962

    申请日：2018-10-19

    Applicant: HITACHI, LTD.

    Inventor： Yuichi Igarashi ,  Ryo Nakano ,  Jumpei Honda ,  Hiroshige Kashiwabara ,  Takuma Nishimura

    IPC: H04L12/26 ,  H04L29/08 ,  G05B19/418 ,  H04W84/18

    Abstract: A data collection apparatus collecting data from a terminal device connected through a communication path, comprising a schedule managing unit determining a schedule transmitting a data acquisition request to the terminal device according to managed timing data, a transmission amount adjusting unit adjusting a transmission amount of the data acquisition request, and a collected data managing unit managing the data collected from the terminal device, in which the schedule managing unit manages a start point time that is a time at which a data collection from each terminal device starts, a collection period that is an interval of the data collection from each terminal device, a retransmission interval that is a time until the data acquisition request is retransmitted when the data collection from the terminal device fails, and a retransmission number that is the number of times to retransmit the data acquisition request as the timing data.

    DATA COLLECTION APPARATUS AND DATA COLLECTION METHOD
    9.
    发明申请
    DATA COLLECTION APPARATUS AND DATA COLLECTION METHOD 审中-公开

    公开(公告)号：US20190123986A1

    公开(公告)日：2019-04-25

    申请号：US16164962

    申请日：2018-10-19

    Applicant: HITACHI, LTD.

    Inventor： Yuichi Igarashi ,  Ryo Nakano ,  Jumpei Honda ,  Hiroshige Kashiwabara ,  Takuma Nishimura

    IPC: H04L12/26 ,  H04L29/08

    CPC classification number: H04L43/08 ,  H04L43/024 ,  H04L67/125 ,  H04L67/325 ,  H04W84/18

    Abstract: A data collection apparatus collecting data from a terminal device connected through a communication path, comprising a schedule managing unit determining a schedule transmitting a data acquisition request to the terminal device according to managed timing data, a transmission amount adjusting unit adjusting a transmission amount of the data acquisition request, and a collected data managing unit managing the data collected from the terminal device, in which the schedule managing unit manages a start point time that is a time at which a data collection from each terminal device starts, a collection period that is an interval of the data collection from each terminal device, a retransmission interval that is a time until the data acquisition request is retransmitted when the data collection from the terminal device fails, and a retransmission number that is the number of times to retransmit the data acquisition request as the timing data.

    Cache evictions from data cache based on content of address translation table cache and address translation table
    10.
    发明授权
    Cache evictions from data cache based on content of address translation table cache and address translation table 有权
    基于地址转换表缓存和地址转换表的内容从数据缓存中缓存驱逐

    公开(公告)号：US08909870B2

    公开(公告)日：2014-12-09

    申请号：US13661226

    申请日：2012-10-26

    Applicant: Hitachi, Ltd.

    Inventor： Ryoichi Inada ,  Ryo Fujita ,  Takuma Nishimura

    IPC: G06F12/02 ,  G06F12/12 ,  G06F12/08

    CPC classification number: G06F12/02 ,  G06F12/0246 ,  G06F12/0871 ,  G06F12/127 ,  G06F2212/214 ,  G06F2212/7201

    Abstract: A storage device includes a non-volatile memory, a cache memory and a memory controller. The non-volatile memory stores a logical-to-physical address translation table for managing partitioned data and storage locations thereof. The cache memory stores a data cache and a logical-to-physical address translation table cache which holds a portion of the logical-to-physical address translation table. When the memory controller receives a data read-out request from outside, in the case no empty entry is found in the data cache, among the partitioned data in the data cache, it creates an empty entry to read out the data thereto by evacuating partitioned data of which entries in the logical-to-physical address translation table exist in the logical-to-physical address translation table cache into the non-volatile memory prior to other partitioned data.

    Abstract translation: 存储设备包括非易失性存储器，高速缓冲存储器和存储器控制器。 非易失性存储器存储用于管理分区数据及其存储位置的逻辑到物理地址转换表。 高速缓存存储器存储保存逻辑到物理地址转换表的一部分的数据高速缓存和逻辑到物理地址转换表高速缓存。 当存储器控制器从外部接收到数据读出请求时，在数据高速缓存中没有找到空条目的情况下，在数据高速缓存中的分区数据中，它创建一个空条目以通过排除分区 逻辑到物理地址转换表中的条目在逻辑到物理地址转换表高速缓存中存在于其他分区数据之​​前的非易失性存储器中。

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