Patents Assigned to Hitachi, Ltd.
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Publication number: 20240116177Abstract: A control device according to an aspect of the present invention comprises: a progress information output unit that determines the progress of work on the basis of sensor data, obtained from at least one among a work device and the work environment of the work device, and sensor data during normal progress of the work device, and outputs progress information indicating the progress of work; a management unit that generates an operation command of the work device on the basis of the progress information, and outputs the operation command; and a control unit that generates a driving signal for driving the work device on the basis of the operation command and the sensor data, and outputs said driving signal to the work device.Type: ApplicationFiled: October 29, 2021Publication date: April 11, 2024Applicant: Hitachi, Ltd.Inventor: Masaki ODAI
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Patent number: 11954604Abstract: Provided is a maintenance operation assistance system comprising: a failure knowledge database wherein failure knowledge data is recorded; a failure knowledge coupling unit for reconstructing partial failure knowledge data into failure knowledge data; and an inspection procedure generation unit for presenting an inspection procedure using the reconstructed failure knowledge data. The failure knowledge coupling unit evaluates and adjusts the relatedness of nodes among different instances of partial failure knowledge data, and connects the different instances of partial failure knowledge data. On the basis of the reconstructed failure knowledge data, the inspection procedure generation unit sets priorities for when presenting the inspection procedure, and presents the inspection procedure to a diagnostic interface unit in accordance with the priorities.Type: GrantFiled: May 9, 2019Date of Patent: April 9, 2024Assignee: Hitachi, Ltd.Inventor: Toshiaki Kono
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Patent number: 11954600Abstract: An image processing device including a storage unit configured to store an object detection neural network trained using a first K-channel image generated from a first M-channel image and a first N-channel image generated from the first M-channel image, a reception unit configured to receive, from a sensor, a second M-channel image and a second N-channel image that include an identical subject, and an image analysis unit configured to generate, using the object detection neural network trained using the first K-channel image, object detection result information with respect to a second K-channel image generated from the second M-channel image and the second N-channel image, and output the object detection result information.Type: GrantFiled: March 17, 2021Date of Patent: April 9, 2024Assignee: HITACHI, LTD.Inventors: Viviana Crescitelli, Takashi Oshima
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Patent number: 11954335Abstract: Reliability in a storage system can be easily and appropriately improved. In a computer system including a storage system configured to provide a plurality of instances in any one of a plurality of subzones divided by risk boundaries, a processor of the computer system is configured to make a storage controller that controls I/O processing for a volume based on a capacity pool provided by a plurality of storages redundant to the plurality of instances provided in the plurality of subzones.Type: GrantFiled: September 22, 2022Date of Patent: April 9, 2024Assignee: HITACHI, LTD.Inventors: Takaki Nakamura, Hideo Saito, Naruki Kurata, Takahiro Yamamoto
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Patent number: 11954001Abstract: A storage system includes: a power source; a drive box that stores a storage apparatus; a storing apparatus having a storage unit in which data regarding devices is stored; a PCIe switch that can switch between a plurality of communication paths, has a communication path connected at least to the storage apparatus, and can further perform I2C communication with the storing apparatus; an auxiliary apparatus that can perform I2C communication with the PCIe switch; and a MOS switch that controls power supply from the power source to the storing apparatus, wherein if timeout of the I2C communication between the PCIe switch and the storing apparatus occurs, the PCIe switch transmits a hard reset command to the auxiliary apparatus; and wherein when the auxiliary apparatus receives the hard reset command, the auxiliary apparatus stops the power supply to the storing apparatus by using the MOS switch and then performs power resupply.Type: GrantFiled: March 7, 2022Date of Patent: April 9, 2024Assignee: Hitachi, Ltd.Inventor: Issei Nakashima
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Publication number: 20240111930Abstract: A system determines a plurality of model classes of a scenario model based on: different factors with respect to a scenario model for a digital twin simulator, the factors being specified from physical or digital asset; and a result of comparison between a value for the factor and a threshold of each factor. For each of the model classes and for each outcome with respect to the scenario model, the system receives, from a user, an outcome value range that is a range of a value of the each outcome and is a range of a value based on heuristics. The system prepares, for each model class, a scenario model having an outcome value belonging to the outcome value range received for the each model class. The system selects an optimal scenario model from among the scenario models prepared for respective ones of the model classes.Type: ApplicationFiled: August 14, 2023Publication date: April 4, 2024Applicant: Hitachi, Ltd.Inventors: Alexander Adam LAURENCE, Keiro Muro, Daiwa Satoh
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Publication number: 20240113558Abstract: A power system supervisory control apparatus, a power system supervisory control system, and a power system supervisory control method for reducing social cost and improving resilience of a power system are provided. The power system supervisory control apparatus including multiple renewable energy power supplies includes: a system influence degree evaluation section that evaluates a system influence degree when a renewable energy fluctuation or an assumed fault has an influence on the power system by using, as computation conditions, system data for obtaining a state of the power system, renewable energy fluctuation data indicative of a fluctuation of a power generation output, and assumed fault data of an assumed fault in the power system, and calculates system influence degree evaluation result data; a computation condition selection index calculation section that calculates a selection index for the computation conditions; and a condition selection section that selects the computation conditions.Type: ApplicationFiled: October 25, 2021Publication date: April 4, 2024Applicant: HITACHI, LTD.Inventors: Daichi Kato, Masahiro Watanabe, Takahisa Matsuzaki, Yohei Murakami
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Patent number: 11947811Abstract: In a storage system, processing related to data replication includes associating first control information with a logical volume and a snapshot and second control information with data on a pool volume. Data of the logical volume and the snapshot is managed by associating the first control information with the second control information. A time series of the logical volume and one or more snapshots is managed using generation information associated with the first control information, for each piece of data on the pool volume. Generation information indicating a generation in which the data is created is managed in association with the second control information. Invalidation of the first and second control information asynchronously with a processing of data related to the logical volume and the snapshot is executed. Whether the invalidation is possible is determined by referring to the generation information associated with the first and second control information.Type: GrantFiled: December 19, 2022Date of Patent: April 2, 2024Assignee: HITACHI, LTD.Inventors: Takaki Matsushita, Yusuke Yamaga
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Publication number: 20240103983Abstract: A management method includes accessing API interfaces and collecting data related to primary volumes, remote copy volumes, and shared upload volumes, generating order topology related to the primary, remote copy, and shared upload volumes, calculating a set P of the primary volumes storing data to be deleted and specifying a set Vd of the remote copy volumes directly related to the set P in the order topology, calculating, as a set C, all of the shared upload volumes related to the set P in the order topology and specifying a set Vi of all of the remote copy volumes related to the set C in the order topology, calculating a set Vid as the complementary set of the set Vd in the set Vi, and specifying a set Pid of the primary volumes one level higher than the set Vid in the order topology.Type: ApplicationFiled: March 6, 2023Publication date: March 28, 2024Applicant: Hitachi, Ltd.Inventors: Avais AHMAD, Shinichi Hayashi, Kaori Nakano
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Publication number: 20240103935Abstract: The CPU of the management node measures the power consumption of a computer node while causing the computer node to execute the power measurement benchmark that uses hardware whose resource is allocated to a program to be executed by the computer node, where the CPU is changing the use amount of the resource while causing the computer node to execute the power measurement benchmark. The CPU generates a power consumption model representing a relationship between an allocation amount of the resource to be allocated to the program and the power consumption on the basis of a measurement result obtained by measuring the power consumption.Type: ApplicationFiled: March 13, 2023Publication date: March 28, 2024Applicant: Hitachi, Ltd.Inventors: Akio SHIMADA, Mitsuo HAYASAKA
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Publication number: 20240103740Abstract: A storage system having a plurality of control units that perform read control of data stored in a storage and write control of the data, the storage system comprising, each of the plurality of control units has a processor, a first memory connected to the processor and storing software for executing a process of read control and write control, a network interface for connecting to a control unit network that connects each of the plurality of control units, and a second memory connected to the network interface and storing control information of the data subject to read control and write control and cache data of the storage.Type: ApplicationFiled: March 8, 2023Publication date: March 28, 2024Applicant: Hitachi, Ltd.Inventors: Norio CHUJO, Kentaro SHIMADA
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Publication number: 20240105543Abstract: There is provided a power conversion apparatus including a first power semiconductor module, a second power semiconductor module, a control circuit for driving the first power semiconductor module and the second power semiconductor module, and liquid-cooling type cooling jackets, wherein the second power semiconductor module is disposed closer to an upper surface in the gravity direction than the first power semiconductor module is, the cooling jackets include a refrigerant containing hydrogen molecules and a refrigerant flow path at least between the first power semiconductor module and the second power semiconductor module, and the control circuit performs control such that the operating time period of the second power semiconductor module is shorter than the operating time period of the first power semiconductor module.Type: ApplicationFiled: August 3, 2023Publication date: March 28, 2024Applicant: Hitachi, Ltd.Inventors: Hiroshi Kamizuma, Hangxian Gao, Tetsuya Kawashima, Masahiro Seo
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Publication number: 20240104064Abstract: The present invention makes it possible to maintain availability and scale out file performance, while suppressing costs. A unified storage has a plurality of controllers and a storage apparatus (storage device unit), and each of the plurality of controllers is equipped with one or more main processors (CPU) and one or more channel adapters (FE-I/F). Each main processor causes a block storage control program to operate and thereby process data inputted to and outputted from the storage apparatus, each channel adapter has a processor (CPU) that performs transmission and reception to and from a main processor after receiving an access request, and the processors in the plurality of channel adapters cooperate to cause a distributed file system to operate, and distributively store data, written as a file, to the plurality of controllers.Type: ApplicationFiled: March 1, 2023Publication date: March 28, 2024Applicant: Hitachi, Ltd.Inventors: Yuto KAMO, Mitsuo HAYASAKA, Norio SHIMOZONO
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Publication number: 20240103934Abstract: A memory of an application platform stores per site a performance model indicating a relationship between program performance and a resource amount of hardware necessary for realizing program performance, and an electric power consumption model indicating a relationship between a resource allocation amount that is an amount allocated to the program, and an electric power consumption amount consumed when the program is executed.Type: ApplicationFiled: March 10, 2023Publication date: March 28, 2024Applicant: Hitachi, Ltd.Inventors: Shimpei NOMURA, Mitsuo HAYASAKA
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Publication number: 20240103505Abstract: A calculation system that, in an environment based on a digital twin to which the assets are hierarchically connected, executes a simulation regarding the assets on the basis of an output specification regarding a sampling rate and target accuracy that is target accuracy of calculation processing, the calculation system includes a requirement condition calculation unit configured to calculate an output specification to be required for a downstream hierarchy, and a requirement adjustment unit configured to adjust the output specification of a hierarchy that receives a requirement on the basis of the requirement received from the downstream hierarchy, and the requirement condition calculation unit calculates an output specification to be required for an upstream hierarchy on the basis of the output specification adjusted by the requirement adjustment unit.Type: ApplicationFiled: September 12, 2023Publication date: March 28, 2024Applicant: HITACHI, LTD.Inventors: Keiro Muro, Yoshinari Hori
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Patent number: 11942873Abstract: A secondary magnetic excitation generator-motor device that inputs a first ignition pulse command to a three-level NPC power converter such that a detected excitation current value corresponds with an excitation current command value, the secondary magnetic excitation generator-motor device having a function of identifying a first phase, a second phase, or a third phase in descending order of a current absolute value, wherein a pulse switch to output an ignition pulse command to the three-level NPC power converter switches the ignition pulse command to the second ignition pulse command when a current absolute value exceeds a set overcurrent level 1, and switches the ignition pulse command to the first ignition pulse command when current absolute values for three phases are all equal to or smaller than a set overcurrent level 2.Type: GrantFiled: August 8, 2019Date of Patent: March 26, 2024Assignees: HITACHI MITSUBISHI HYDRO CORPORATION, HITACHI, LTD.Inventors: Akira Bando, Hironari Kawazoe, Akira Kikuchi
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Patent number: 11941284Abstract: It is possible to reduce analysis cost of a management system. The management system includes a CPU and manages one or more storage devices that provide, to a higher-level device, one or more volumes for inputting and outputting data. The CPU is configured to collect performance information of the volume from the storage device at a predetermined first time interval and detect a QoS violation of the performance information of the volume at a second time interval longer than the first time interval.Type: GrantFiled: March 11, 2022Date of Patent: March 26, 2024Assignee: HITACHI, LTD.Inventors: Soichi Watanabe, Akira Deguchi, Kazuei Hironaka
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Patent number: 11938983Abstract: A train position estimation device which calculates the position of a vehicle traveling on a predetermined path and comprises a surroundings shape measurement unit that is installed in the vehicle and measures the shape of the surroundings of the current location of the vehicle and a map storage unit for storing surroundings shape data at positions measured in advance, the train position estimation device being characterized by comprising a start position estimation unit for storing the probability of presence of the vehicle at each position; a map retrieval section determination device for outputting surroundings shape data for each position in descending order of presence probability; and a matching processing device that compares the surroundings shape data for the current location with the retrieved surroundings shape data and outputs the position for which the difference therebetween is equal to or less than a predetermined threshold value.Type: GrantFiled: January 28, 2019Date of Patent: March 26, 2024Assignee: HITACHI, LTD.Inventors: Yuhi Tsutsumi, Atsushi Oda, Keiichi Katsuta, Kazuo Tokuyama
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Patent number: 11941898Abstract: A three-dimensional position and posture recognition device speeds estimation of a position posture and a gripping coordinate posture of a gripping target product. The device includes: a sensor unit configured to measure a distance between an image of an object and the object; and a processing unit configured to calculate an object type included in the image, read model data of each object from the external memory, and create structured model data having a resolution set for each object from the model data, generate measurement point cloud data of a plurality of resolutions from information on a distance between an image of the object and the object, perform a K neighborhood point search using the structured model data and the measurement point cloud data, and perform three-dimensional position recognition processing of the object by rotation and translation estimation regarding a point obtained from the K neighborhood point search.Type: GrantFiled: December 19, 2019Date of Patent: March 26, 2024Assignee: HITACHI, LTD.Inventors: Atsutake Kosuge, Takashi Oshima, Yukinori Akamine, Keisuke Yamamoto
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Patent number: 11938346Abstract: A particle beam therapy apparatus has a position and posture setter that moves a movable body, that is at least one of the irradiation nozzle and the treatment table. A movement path of the movable body is determined when adapting the positional posture of the movable body from one condition among a plurality of prescribed conditions to another condition. An evaluation value is obtained for adapting the positional posture of the movable body to each of a plurality of prescribed conditions. This evaluation value is for a case of moving the movable body according to the movement path. A setting order is determined for adapting the positional posture of the movable body to each prescribed condition based on the evaluation value; and the positional posture of the movable body is adapted to each of the plurality of prescribed conditions by moving the movable body according to the determined movement path.Type: GrantFiled: October 16, 2019Date of Patent: March 26, 2024Assignee: HITACHI, LTD.Inventors: Hiroki Takahashi, Masanori Suzuki, Takuto Yagihashi, Takeshi Fujita, Isao Furuse, Yuko Okada