Hitachi, Ltd.

Adv Antest Corporation

Hitachi Systems, Ltd.

Advantest Coprporation

Yuji Ogata

Daisuke Ishii

Masaki Yamada

Nobuyuki Muranaka

Yoshiyuki Hata

Tomonori Yanagida

Kazuo Hashimoto

Takeshi Tanaka

Yuji Tsushima

Shunzo Yamashita

Takanori Shimura

Kunihiko Toumura

Koji Ara

Toshiaki Hayakawa

Minoru Kaneko

Takuya Habara

Fumio Enmei

Shinji Nishimura

Takeki Yazaki

Tomoaki Ueda

Goichi Ono

Michitaka Okuno

Kiyotaka Takahashi

Takumi Oishi

Hiroaki Shikano

May Takada

Toshimitsu Hayashi

Riu Hirai

Koki Nakashiro

Hitoshi Hayakawa

Kazumasa Tokuhashi

Hidetaka Aoki

A signal/noise determination apparatus includes a plurality of sensors, a determination model recording section, and a signal/noise determining section. The plurality of sensors measure a signal and a noise. The determination model recording section records a determination model used to determine whether components of results of measurement by the sensors expected with hypothetical signal information and hypothetical noise information are from a signal source or a noise source. The determination model is generated by machine learning with the measurement results, the hypothetical signal information, and the hypothetical noise information as training data. The signal/noise determining section determines whether components of the measurement results are from the signal source or the noise source based on the measurement results and the determination model. The signal information includes the position of the signal source and the signal, and the noise information includes the position of the noise source and the noise.

Signal/noise determination apparatus, method, and recording medium

According to the present invention, a filtering apparatus includes an FIR filter that has multipliers arranged to multiply input digital data having their respective different input time points by respective variable tap coefficients. The variable tap coefficients are each switched from a first tap coefficient to a second tap coefficient sequentially for the input digital data from later to earlier input time points. The first tap coefficient is arranged to cause the FIR filter to serve as a low-pass filter with the cut-off frequency set at a first frequency. The second tap coefficient is arranged to cause the FIR filter to serve as a low-pass filter with the cut-off frequency set at a second frequency different from the first frequency.

Filtering apparatus, method, program, and recording medium

A signal vector derivation apparatus receives measurement results from a plurality of sensors that receive signals each represented by a vector having a predetermined direction and measure triaxial components orthogonal to each other and derives the direction of the vector. The measurement results from the sensors are each proportional to a sum of the triaxial components of the vector multiplied, respectively, by first coefficients. The signal vector derivation apparatus includes a spectrum deriving section and a direction deriving section. The spectrum deriving section derives a spectrum obtained based on the measurement results from the sensors and a sum of the first coefficients multiplied, respectively, by second coefficients, the spectrum having local maximum values within voxels in which signal sources that output the respective signals exist. The direction deriving section derives the direction of the vector based on the second coefficients used to obtain the spectrum.

Signal vector derivation apparatus, method, program, and recording medium

To provide a relay apparatus and a relay method by which an app can be flexibly connected to a device and various apps can be connected to various devices to realize stable operation. The invention is a relay method for mediating a connection between an app and a device, and the relay method includes: when an input specification of data required for an app whose use is to be started is input, comparing an output specification held by each processing node provided in an existing data processing path with a data item included in the input specification; connecting an output of the data processing path to the app whose use is to be started if the existing processing node and the existing data processing path are able to satisfy the input specification; adding a new processing node and comparing an output specification of the new processing node with the input specification if the existing data processing path is not able to satisfy the input specification; and connecting an output of the new processing node to the app whose use is to be started if the new processing node is able to satisfy the input specification.

Relay apparatus and relay method

A data extracting apparatus comprises: a processor configured to execute a program; and a storage device configured to store the program, the data extracting apparatus being configured to access: configuration information that defines a work environment including a group of sensors; and a data extraction rule, which is used for extraction from the configuration information, and is defined for each event that indicates one of a change and abnormality of the work environment, and the processor being configured to execute: detection processing of detecting a specific event based on sensor data from the group of sensors; extraction processing of extracting related data related to the specific event from specific configuration information corresponding to an acquisition time of the sensor data out of the configuration information, based on a specific data extraction rule corresponding to the specific event; and output processing of outputting the related data.

Data extracting apparatus, data extracting method, and recording medium

To improve learning accuracy, while avoiding transferring of a dataset from an edge terminal to a cloud server. A management device accessible to a target object to be managed has a processor executing a program, a storage device storing the program, and a communication interface communicable with the target object. The processor executes a reception process for receiving first environmental information representing a first environment of the target object, a first generation process for generating relevant information representing relevancy between the first environmental information and second environmental information representing a second environment of the target object, a second generation process for generating a first learned model for inference by the target object in the first environment based on the relevant information and a second learned model for inference by the target object in the second environment, and a transmission process for transmitting the first learned model to the target object.

Management device, management method, and management program

Provided is a data processing system which links a plurality of types of processing each of which configured to implement a function. The data processing system includes: a gateway for inputting data; and a server for inputting data output from the gateway. The gateway applies first processing including one or more types of processing to the input data in accordance with information included in first flow information and outputs the processed data to the server. The server applies second processing to the data input from the gateway in accordance with the information included in the first flow information and thereafter applies third processing including one or more types of processing, specifies the second processing, generates, from the first flow information, second flow information including information for applying the third processing to the data input by the server from the gateway, and generates, from the first flow information, the second flow information including information for applying the first processing to the data input by the gateway and thereafter applying the second processing.

Data processing system and method of controlling the same

To select a storage device suitable for storing data necessary for operation of an application in a system accompanying a dynamic configuration change. A computer system includes: a device configured to execute a processing in accordance with an application; a storage device configured to store application data for operating the application; and a control system, in which the control system is configured to specify the storage device which is operating from the present and at the time of changing a configuration of the computer system based on configuration change schedule information for managing a change schedule of the configuration of the computer system, select the storage device to store the application data from the specified storage device, and arrange the application data in the selected storage device before the configuration of the computer system is changed.

Computer system and method for controlling arrangement of application data

A service deployment control system includes a machine management module, a network management module, a service management module and a service deployment destination determination module. The machine management module is configured to acquire information on an operation of the service providing computer. The network management module is configured to acquire information on cooperation among a plurality of services. The service management module is configured to manage a condition for a computer resource that is set to and required for each of the services. The service deployment destination determination module is configured to select a service providing computer satisfying the condition for the computer resource required for the service out of the information on the operation as a candidate of a deployment destination of the service, generate combinations of the candidates as deployment patterns, calculate a deployment cost for each of the deployment patterns, select one of the deployment patterns.

Service deployment control system, service deployment control method, and storage medium

A data collection system pertaining to one embodiment of the present invention collects time-series data which is output from sensors installed on equipment which is a monitored object and carries out detecting an abnormality of the equipment. The data collection system stores plural fault models as data for comparison with time-series data and, in a learning process, determines a range to examine within time-series data by comparing the time-series data with each one of the fault models. An abnormality detection process includes extracting a partial frequency spectrum to examine from the frequency spectrum of time-series data, using information on the range to examine within the time-series data determined through the learning process, and carrying out detecting an abnormality of the equipment using the extracted frequency spectrum.

Data collection system, abnormality detection method, and gateway device

To reduce a load on a specific computer considering a load in association with an execution of data processing and an attribute of the data processing. A computer system executes data processing using collected data. The computer system includes a gateway configured to collect the data and a server coupled to the gateway. The data processing includes a plurality of processes. The server is configured to: manage an attribute of the data processing; monitor loads on the gateway and the server in association with the execution of the data processing; and execute process control processing whose object is reduction in the loads in association with the execution of the data processing based on the attribute of the data processing and monitoring results of the loads. The process control processing includes transfer processing configured to transfer the process and performance change processing configured to change a parameter configured to control performance of the process.

Computer system and method of controlling data processing

A data collection system is configured with a management apparatus to define associations between data and metadata, design a method of displaying the data and the metadata related to the data, and generate methods of transmitting, receiving, and relaying the data and the metadata; a generation apparatus that generates the data and the metadata; a display apparatus that displays the data and the metadata; and a relay apparatus that relays the data and the metadata, the management apparatus distributing processing procedures related to the data and the metadata to be displayed on the display apparatus to one of or all of the generation apparatus, the relay apparatus, and the display apparatus, in accordance with a position of the data and an acquisition method contained in association information created using the function to design the associations.

Data collection system

In a magnetic field measurement apparatus and a magnetic field measurement method provided herein, a magnetic field from an object is measured by a magnetic sensor group including a plurality of magnetic sensors. Then, an estimated value of a common noise component included in observed quantities of the magnetic sensors of all the channels of the magnetic sensor group is obtained as an external magnetic noise component. Finally the magnetic signal from the object is calculated by subtracting the estimated value from the observed quantity of each of the magnetic sensors.

Magnetic field measurement apparatus and method for noise environment

In the sensor data retrieval system, a gateway connected to a plurality of sensor devices collects sensor data including measurement values and time stamps and stores them in a temporary storage part, and the management computer collects sensor data and stores sensor data in the first storage part, the management computer updates the collected time for each gateway as the first time, registers the sensor data of the first storage part in the second storage part in the registration cycle, the search part which updates the latest time stamp among the time stamps of the registered sensor data for each gateway with the second time as the second time and accepts the search period and searches for the sensor data of the time stamp included in the search period, and the search upper limit time from the search period, and compares the second time with the search upper limit time.

Sensor data search system, sensor data search method and management computer

There is provided a magnetic noise rejection apparatus which includes: a plurality of cancellation coils arranged near a target object; a plurality of magnetic sensors disposed inside the respective cancellation coils; an adder circuit configured to take a sum of outputs of the plurality of magnetic sensors; and a feedback control circuit configured to supply the cancellation coils with such a common feedback drive current that the sum of the outputs of the magnetic sensors is equal to a sum of outputs of the magnetic sensors under a zero magnetic field.

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Tokyo, Japan

Yuji Ogata