公开(公告)号：US20240004747A1

公开(公告)日：2024-01-04

申请号：US18201915

申请日：2023-05-25

Applicant: Hitachi, Ltd.

Inventor： Shuichi NISHINO ,  Yutaka UEMATSU ,  Tadanobu TOBA ,  Kenichi SHIMBO ,  Takumi UEZONO

IPC: G06F11/07 ,  G06N5/02

CPC classification number: G06F11/079 ,  G06F11/0721 ,  G06N5/02

Abstract: It is possible to achieve a more accurate failure diagnosis by obtaining explicit knowledge having high comprehensiveness that can be applied to a failure diagnosis based on knowledge across a plurality of areas. A processor system includes: one or more processors; and one or more memory resources. The memory resource is configured to store a diagnostic program configured to diagnose an electronic system including a mobile body or equipment, and a plurality of knowledge graphs for use in the diagnostic program and including at least a first knowledge graph and a second knowledge graph created based on domain knowledge different from that of the first knowledge graph, and the processor is configured to execute the diagnostic program to (1) evaluate a semantic similarity between a first knowledge item included in the first knowledge graph and a second knowledge item included in the second knowledge graph, and (2) generate, when the similarity satisfies a predetermined condition, an integrated graph in which the first knowledge graph and the second knowledge graph are integrated.

公开(公告)号：US20220300362A1

公开(公告)日：2022-09-22

申请号：US17539279

申请日：2021-12-01

Applicant: Hitachi, Ltd.

Inventor： Tadanobu TOBA ,  Kenichi SHIMBO ,  Yutaka UEMATSU ,  Takumi UEZONO ,  Hidetoshi TERAOKA

IPC: G06F11/00 ,  G06F11/26 ,  G07C5/00

Abstract: A distributed system includes an edge system as an automatically operable moving body or equipment and a diagnostic data computer capable of communicating with the edge system. The edge system has a mechanism unit for operation, an in-edge controller controlling the mechanism unit, and a diagnostic controller capable of communicating with the in-edge controller via an in-vehicle network. The diagnostic controller acquires diagnostic data in accordance with a first diagnostic sequence set and transmits the diagnostic data to the diagnostic data computer. The diagnostic data computer transmits a diagnostic update notification of update to a second diagnostic sequence set to the diagnostic controller based on the diagnostic data. The diagnostic controller performs update from the first diagnostic sequence set to the second diagnostic sequence set.

公开(公告)号：US20210390795A1

公开(公告)日：2021-12-16

申请号：US17342018

申请日：2021-06-08

Applicant: Hitachi, Ltd.

Inventor： Tadanobu TOBA ,  Takumi UEZONO ,  Yutaka UEMATSU ,  Kenichi SHIMBO

IPC: G07C5/00 ,  G07C5/08 ,  G06Q10/00

Abstract: A distributed system includes an edge device, which is a moving body or equipment capable of automatic operation, and a diagnostic data computer. The edge device includes a moving mechanism or an operating mechanism for automatic operation, and an in-edge controller that controls the moving mechanism or the operating mechanism. Here, the diagnostic data computer: receives diagnostic data indicating an internal state in the in-edge controller.

公开(公告)号：US20180149695A1

公开(公告)日：2018-05-31

申请号：US15576144

申请日：2016-04-06

Applicant: HITACHI, LTD.

Inventor： Takumi UEZONO ,  Tadanobu TOBA ,  Kenichi SHIMBO ,  Fumihiko NAGASAKI

IPC: G01R31/28 ,  G01R31/26 ,  G01R31/265 ,  G01R31/303

CPC classification number: G01R31/2881 ,  G01R31/2601 ,  G01R31/265 ,  G01R31/303 ,  G01R31/31816

Abstract: Neutron soft error rate derivation is calculated from data at the low energy neutron radiation. An outline value of an SEU cross-section function corresponding to a given neutron energy value is outputted. This outline value and the low energy neutron spectrum data are used to calculate an error count basic value of errors to occur over time. An error count actual measurement value over time is calculated from an error count during radiation of low energy neutrons and low energy neutron radiation time. The error count basic value and the error count actual measurement are used to calculate a proportionality coefficient of the SEU cross-section function. While holding a natural neutron spectrum, an error rate calculator outputs a neutron flux corresponding to a neutron energy value. The neutron soft error rate is calculated by an integration operation of multiplying the SEU cross-section function with the natural neuron spectrum.

公开(公告)号：US20160085605A1

公开(公告)日：2016-03-24

申请号：US14787559

申请日：2013-05-24

Applicant: HITACHI, LTD.

Inventor： Kenichi SHIMBO ,  Tadanobu TOBA ,  Takumi UEZONO

IPC: G06F11/07

CPC classification number: G06F11/076 ,  G06F11/008 ,  G06F11/0736 ,  G06F17/5045 ,  G06F2217/70

Abstract: For a soft error of an electronic device, a technique capable of ensuring high reliability because of a low soft error rate (SER) is provided. By using building data including information of a structural object of a building and facility data including information of a plurality of facilities including an electronic device arranged in the building, a SER calculating device calculates a model including an attenuation index value representing a degree of attenuation of radiation entering the building attenuated by the structural object of the building until the radiation reaches a position of the facility arranged in the building, calculates a SER at each position of the facility arranged in the building by using the model including the attenuation index value, and outputs information including the SER at each position of the facility.

Abstract translation: 对于电子设备的软错误，提供了由于软错误率（SER）而能够确保高可靠性的技术。 通过使用建筑物数据，包括建筑物的结构对象的信息和包括包括布置在建筑物中的电子设备的多个设施的信息的设施数据，SER计算装置计算包括表示衰减程度的衰减指数值的模型 进入建筑物的辐射被建筑物的结构物体衰减，直到辐射到达布置在建筑物内的设施的位置，通过使用包括衰减指数值的模型计算在建筑物中布置的设施的每个位置处的SER，以及 在设施的每个位置输出包括SER的信息。

公开(公告)号：US20240176755A1

公开(公告)日：2024-05-30

申请号：US18551650

申请日：2022-04-01

Applicant: HITACHI, LTD.

Inventor： Yutaka UEMATSU ,  Tadanobu TOBA ,  Kenichi SHIMBO ,  Takumi UEZONO

IPC: G06F13/36

CPC classification number: G06F13/36 ,  G06F2213/40

Abstract: It is possible to reduce the amount of data transmitted from the edge system to the outside while securing the amount of information necessary for purposes such as factor analysis and diagnosis and the cycle of information acquisition. A distributed system includes: an edge device that is a moving body or equipment capable of automatic operation; and a diagnostic data computer. The edge device has: at least one of a movement mechanism and an actuation mechanism for implementing automatic operation; a component corresponding to at least one of the movement mechanism and the actuation mechanism; and an intra-edge controller that controls the component. The intra-edge controller reads state data acquired in the component, aggregates the read state data into component-level state data, determines an allowable latency when transferring the component-level state data to a transfer destination according to a predetermined rule, and transfers the component-level state data to the diagnostic data computer based on the allowable latency.

公开(公告)号：US20220366735A1

公开(公告)日：2022-11-17

申请号：US17709506

申请日：2022-03-31

Applicant: HITACHI, LTD.

Inventor： Tadanobu TOBA ,  Kenichi SHIMBO ,  Yutaka UEMATSU

IPC: G07C5/08 ,  G07C5/00

Abstract: A distributed system includes an edge device which is at least one of an automatically operable moving body and equipment, and a diagnostic data computer, in which the edge device converts state data representing a state of a component that is a constituent of a replaceable unit forming the edge device, into diagnostic data according to a predetermined diagnostic algorithm, and the diagnostic data computer acquires the diagnostic data from a first edge device, and specifies a second edge device that employs a component related to the component employed in he first edge device.

公开(公告)号：US20220060399A1

公开(公告)日：2022-02-24

申请号：US17355251

申请日：2021-06-23

Applicant: HITACHI, LTD.

Inventor： Kenichi SHIMBO ,  Tadanobu TOBA ,  Masaharu KINOSHITA

IPC: H04L12/26 ,  G16Y30/10

Abstract: A data processing method is performed by an edge device acquiring collected data from a collection target and a first computer capable of communicating with the edge device. The method includes: a first calculation process of, by the edge device, storing the collected data in a secure region to which referring of internally stored information from outside is not allowable and calculating first data which has a data amount less than the collected data and is irreversible in the secure region based on the stored collected data; a first communication process of, by the edge device, transmitting the first data calculated through the first calculation process to the first computer; and a second calculation process of, by the first computer, calculating second data based on the first data transmitted from the edge device through the first communication process.

公开(公告)号：US20170364610A1

公开(公告)日：2017-12-21

申请号：US15622805

申请日：2017-06-14

Applicant: Hitachi, Ltd.

Inventor： Takumi UEZONO ,  Tadanobu TOBA ,  Yusuke KANNO ,  Masahiro SHIRAISHI ,  Hideo HARADA ,  Satoshi NISHIKAWA ,  Toru MOTOYA

IPC: G06F17/50

CPC classification number: G06F17/505 ,  G06F17/5022 ,  G06F17/5045 ,  G06F17/5054 ,  G06F17/5081 ,  G06F2217/02 ,  G06F2217/66

Abstract: Provided is a technology capable of reducing the number of resources necessary for logic implementation in a control device. A semiconductor LSI design device generates a combinational circuit configured with functional blocks defined by a functional block library from an application specification, allocates an operation order of each functional block in the combinational circuit under a condition for starting an operation of a functional block connected to an input pin after ending the operation, converts into a sequence circuit which uses the functional block twice or more in a time division manner, extracts the operation order at a time of execution of the sequential circuit, and determines whether the operation order allocated to the combinational circuit coincide with the extracted operation execution order.

公开(公告)号：US20230286542A1

公开(公告)日：2023-09-14

申请号：US18111010

申请日：2023-02-17

Applicant: Hitachi, Ltd.

Inventor： Tadanobu TOBA ,  Kenichi SHIMBO ,  Yutaka UEMATSU ,  Takumi UEZONO

IPC: B60W60/00

CPC classification number: B60W60/0015 ,  B60W60/001 ,  B60W2556/45 ,  B60W2556/10 ,  B60W2556/40 ,  B60W2555/20

Abstract: Provided are an edge device and a distributed system capable of efficiently collecting situation data when an unexpected event occurs in an automatically operable moving body and contributing to improvement of safety. An edge device according to the invention includes: a sensor provided in an automatically operable moving body; a recognition unit configured to recognize an object based on input data from the sensor; a determination unit configured to determine a recognition result of the recognition unit; a drive mechanism control unit configured to control the drive mechanism based on a determination result of the determination unit; an unexpected event determination unit configured to determine whether an unexpected event has occurred based on information from the recognition unit and the determination unit; a data shaping unit in which when it is determined that an unexpected event has occurred, the data shaping unit shapes, as communication data, a recognition result of the recognition unit, or the input data used for recognition by the recognition unit, and a determination result of the determination unit, or a calculation history up to the determination result; and a communication unit configured to transmit, to the cloud server, the communication data shaped by the data shaping unit.