Patents Assigned to Yokogawa Electric Corporation
  • Patent number: 10191477
    Abstract: A modification management system for a configuration system, includes, not limited to a comparator, a record generator and a link generator implemented in one or more processors. The comparator is configured to determine if a first modification item in a first instruction file is modified. The record generator is configured to create a first record and to store the first modification item in a first record when the first modification item is determined, by the comparator, to be modified. The link generator configured to generate a first link between the first record and the first instruction file, wherein the first instruction file is configured to define at least one modification item for the configuration system.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: January 29, 2019
    Assignee: Yokogawa Electric Corporation
    Inventors: Hiroshi Iriguchi, Alexander Yap, Ka Wai Kathy Chu
  • Publication number: 20190025807
    Abstract: A device information providing apparatus includes: a central processing unit (CPU) that: transmits an acquisition request for acquiring a first data to a device installed in a plant; and provides, to a control apparatus for controlling the plant, second data output from the device, wherein the second data is acquired by performing a predetermined process for the first data detected by the device; and a storage that stores the first data output from the device based on the acquisition request. The CPU further provides the first data stored in the storage to outside of the device information providing apparatus based on a use request input from the outside.
    Type: Application
    Filed: July 11, 2018
    Publication date: January 24, 2019
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Keiichiro Kobuchi, Soichiro Konada, Norio Tanaka
  • Patent number: 10187279
    Abstract: A controller for using a first data item transmitted via a network to generate a second data item for controlling an entity to be controlled over the network, wherein the controller is characterized in being provided with: an adjustment unit for adjusting, with respect to the maximum delay time permissible on the network, the time by which generation of the second data item is started using the first data item after the first data item has been received; and a delay compensation unit, designed using a model of the entity to be controlled and the maximum delay time permissible on the network, for compensating for the delay of the first and second data items that can be generated using the network.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: January 22, 2019
    Assignee: Yokogawa Electric Corporation
    Inventors: Yousuke Ishii, Masato Yamaji, Masahiro Takekawa
  • Publication number: 20190018374
    Abstract: A plant control supporting apparatus includes a segment selector configured to select, from among a plurality of segments defined in a plant, a segment for which learning for acquiring an optimal value of at least one parameter representing an operation state is executed, a reward function definer configured to define a reward function used for the learning, a parameter extractor configured to extract at least one parameter that is a target for the learning in the selected segment on the basis of input and output information of a device used in the plant and segment information representing a configuration of a device included in the selected segment, and a learner configured to perform the learning for acquiring the optimal value for each segment on the basis of the reward function and the at least one parameter.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 17, 2019
    Applicant: Yokogawa Electric Corporation
    Inventors: Hiroaki KANOKOGI, Go TAKAMI
  • Publication number: 20190011353
    Abstract: A measuring device includes: an irradiator that irradiates electromagnetic waves to an inspection object; a light collector having a reflecting surface that guides, to a light-collecting surface, electromagnetic waves whose incident angle with respect to an incident end facing the inspection object is within a predetermined angle, among the electromagnetic waves that have been transmitted through the inspection object; and a detector that detects the electromagnetic waves guided to the light-collecting surface. The measuring device measures a characteristic of the inspection object based on the detected electromagnetic waves.
    Type: Application
    Filed: July 3, 2018
    Publication date: January 10, 2019
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Kazuki Setsuda, Naomichi Chida
  • Patent number: 10177565
    Abstract: The purpose of the present invention is to enable use of a solenoid-type electromagnetic valve (120) in a valve driving device (10) that performs wireless communication. A contact signal converter (110) that converts an on-off contact signal to a control signal for operating a solenoid-type electromagnetic valve (120) comprises an explosion protection barrier (115) which restricts the current of the control signal to be no more than a maximum current established for safety regarding solenoid-type electromagnetic valves (120), and a group of batteries (111), the number of which can ensure a voltage at which the voltage supplied via the explosion protection barrier (115) surpasses the operating voltage of the solenoid-type electromagnetic valve (120).
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: January 8, 2019
    Assignee: Yokogawa Electric Corporation
    Inventors: Hitoshi Saito, Nobuhiro Kanatani
  • Publication number: 20180373740
    Abstract: A control system in an industrial plant is configured to determine whether the source data extracted from the source application is not matched in data structure with the target application, and to transform the source data structure to be matched with the target data structure in accordance with a data structure requirement of the target application if the source data is not matched in data structure with the target data in the target application. The industrial plant control system is configured to perform a hierarchical checking of the data structure between the target application and the source application in a correlated definition status, and perform at least one of updating, deleting and adding the source data from the source application, based at least in part on a result of the hierarchical checking for merging the source data into the target data in the target application.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 27, 2018
    Applicant: Yokogawa Electric Corporation
    Inventors: Haydee Lavisores PLENOS, Ying Tzu HUANG
  • Publication number: 20180365789
    Abstract: A device management apparatus includes a device controller configured to control a device, and a management device configured to manage the device controller. The device controller includes a screen generator configured to generate information representing a screen based on information acquired from the device corresponding to a device identifier. The management device includes a device identifier acquirer configured to acquire the device identifier, an image acquirer configured to acquire the information representing the screen from the device controller controlling the device corresponding to the device identifier, the image acquirer being configured to generate an image based on the information representing the screen, and an image writer configured to write the device identifier and the image to a storage in association with each other.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Applicant: Yokogawa Electric Corporation
    Inventor: Shinya NAKAGAWA
  • Patent number: 10157216
    Abstract: Provided is a data management system including a plurality of nodes to be connected to and disconnected from a network. At least one of the plurality of nodes includes: a communicator that performs a communication via the network by using data having a data structure including a key; a database that accumulates the data; and a data analyzer that, when the node is newly connected to the network, provides another node already connected to the network with node information, the node information being used for enabling the node to serve as node for accumulating the data.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: December 18, 2018
    Assignee: Yokogawa Electric Corporation
    Inventors: Takahisa Fukui, Hiroaki Kanokogi, Ryouhei Furihata, Masayasu Sano
  • Publication number: 20180357185
    Abstract: A field device commissioning system includes a commissioning tool, a communication module and an IO module. The commissioning tool is configured to communicate with a client in a plurality of communications. The commissioning tool is configured to perform a parallel execution of executing a plurality of loop processing logics that includes at least one input loop check or at least one output loop check in parallel for all of a plurality of channels which belongs to each slot in each unit, in accordance with the plurality of request for executions of loop checks from the client in the plurality of communications. The commissioning tool is configured to perform in series a plurality of the sequential executions for a plurality of the slots in each unit, wherein each execution including the plurality of loop processing logics. The commissioning tool may be configured to perform in series a plurality of sets of the plurality of the sequential execution for a plurality of the units.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 13, 2018
    Applicant: Yokogawa Electric Corporation
    Inventors: Jasper Bryan Sale RATILLA, Grewin Vidallo SESMA, Kristine Acibar YAP
  • Patent number: 10152392
    Abstract: A communication apparatus of an embodiment of the present invention includes a storage temporarily storing data received via a wireless network from another communication apparatus that sends the data regarding feedback control at a fixed time interval and an arranger configured to read out and output at the fixed time interval the data stored in the storage and to arrange the data with the fixed time interval.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: December 11, 2018
    Assignee: Yokogawa Electric Corporation
    Inventors: Naoyuki Fujimoto, Kiyoshi Takai
  • Publication number: 20180343147
    Abstract: A wireless gateway system includes a gateway apparatus having a gateway function and including an antenna that wirelessly communicates with a wireless field device, and a power supply apparatus separated from the gateway apparatus. The power supply apparatus converts a voltage from an external power supply to a predetermined internal voltage, supplies the internal voltage to the gateway apparatus, and relays a wired signal in conformance with a first wired communication protocol between an external controller and the gateway apparatus. The gateway apparatus operates using the internal voltage supplied from the power supply apparatus, converts a wireless signal in conformance with a wireless communication protocol received from the wireless field device to a wired signal in conformance with the first wired communication protocol, and transmits the converted wired signal to the power supply apparatus.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 29, 2018
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventor: Naoyuki Fujimoto
  • Publication number: 20180341609
    Abstract: An I/O module includes a base plate, a plurality of universal circuits, and an option module. The base plate includes a plurality of connection terminals. A plurality of field devices is electrically connectable to the connection terminals. The universal circuits correspond to the connection terminals. The universal circuits are provided on the base plate, and configured to perform an input of analog signals from the field device, an output of analog signals to the field device, an input of discrete signals from the field device, and an output of discrete signals to the field device. The option module is detachably provided in the base plate. The option module is provided between a first connection terminal of the connection terminals and a first universal circuit of the universal circuits. The option module includes a first circuit configured to performing transmitting and receiving of signals between the first connection terminal and the first universal circuit.
    Type: Application
    Filed: August 7, 2018
    Publication date: November 29, 2018
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Kazunori Tanimura, Ikutomo Watanabe, Mamoru Tamba, Nobuaki Ema, Takaaki Matsuda
  • Publication number: 20180335361
    Abstract: A calibration work support device includes a calibration target setter that sets a target value of a simulation signal input to a device in calibration of the device, a simulation signal acquirer that acquires an input value based on the simulation signal, a proper range determiner that determines whether the input value is within a proper range for the target value, a proper range notifier that notifies a user whether the input value is within the proper range, an output value acquirer that acquires an output value output from the device in accordance with the simulation signal, a condition determiner that determines whether at least one of the input value and the output value satisfies a predetermined condition, and a recorder that records the input value and the output value if at least one of the input value and the output value satisfies the predetermined condition.
    Type: Application
    Filed: May 15, 2018
    Publication date: November 22, 2018
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Ryouhei FURIHATA, Yusuke YOKOTA
  • Patent number: 10126921
    Abstract: A field device management apparatus is communicably connected to one or more field devices. The field device management apparatus includes a communication module configured to obtain, from a field device connected to the field device management apparatus, fundamental information serving as inherent information, and one or more parameters determining operation contents, a device information storage module configured to determine device identification information based on the fundamental information, and to store, in association with the device identification information, device information including the fundamental information, the parameters, and one or more comments optionally input concerning the field devices, and a user interface module configured to generate a device information display screen that displays a list of the device information corresponding to each of the field devices which are being connected to the field device management apparatus, and that receives an edit of the device information.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: November 13, 2018
    Assignee: Yokogawa Electric Corporation
    Inventor: Ryouhei Furihata
  • Patent number: 10126369
    Abstract: A secondary battery capacity measurement system includes a data convertor, an SOC computer, and a maximum capacity computer. The data convertor determines a partial derivative characteristic curve of a capacity-to-voltage derivative over voltage, the partial derivative characteristic curve indicating a characteristic of a capacity-to-voltage derivative, from a set of historical data of time-sequentially-measured values of voltage and current. The SOC computer computes a difference between the partial derivative characteristic curve and a reference derivative curve indicating a reference characteristic of the capacity-to-voltage derivative, and fits the partial derivative characteristic curve to the reference derivative curve by reducing the difference to estimate an SOC. The maximum capacity computer estimates a maximum value of capacity, from the partial derivative characteristic curve and the reference derivative curve.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: November 13, 2018
    Assignee: Yokogawa Electric Corporation
    Inventors: Soichiro Torai, Masaru Nakagomi
  • Publication number: 20180314243
    Abstract: A process control system includes: one or a plurality of field devices configured to be placed in a plant; and a control apparatus configured to perform at least one of input and output on the field device to control the plant; and a change trend calculation device configured to calculate a change trend in time-series data including an observed value at each point in time of the field device.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Sho Fujita, Kimikazu Takahashi, Nobuaki Ema
  • Publication number: 20180315227
    Abstract: A display apparatus includes: an operation input device configured to designate a data range of an observed value; an analysis condition setting device configured to determine an analysis range or an analysis parameter of the observed value, corresponding to the number of samples included in the data range; a computation device configured to analyze a waveform or a trend of the observed value on the basis of the analysis range or analysis parameter; and a display screen generation device configured to cause a display device to display a waveform or a straight line as a computation result of the computation device.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Sho Fujita, Kimikazu Takahashi, Nobuaki Ema
  • Publication number: 20180314238
    Abstract: A data processing apparatus includes an acquisition circuit that acquires time-series data comprising a plurality of values observed in a plurality of channels at a plurality of points in time; a change trend calculation circuit that calculates a change trend of the observed values at each of the points in time on a channel-by-channel basis; a memory that stores a plurality of judgment tables each indicating a change trend of previous values at each of the points in time within a predetermined time period up to the current point in time; a comparison circuit that compares change trend data comprising a set of change trends of the observed values for each of the channels within the predetermined time period with the judgment tables; and a notification output circuit that outputs a notification related to a temporal change in the observed values on the basis of a result of the comparison.
    Type: Application
    Filed: April 26, 2018
    Publication date: November 1, 2018
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Sho Fujita, Kimikazu Takahashi, Nobuaki Ema
  • Publication number: 20180316988
    Abstract: A battery management device according to one aspect of the present invention for managing a plurality of field devices of a battery-driven type, the plurality of field devices being associated with a facility disposed in a plant and being defined as belonging to a same group includes a battery manager that, in a case receiving battery life information representing approach to a battery life of an installed battery from a first field device that is one field device currently operating among the plurality of field devices, switches the operating field device to a second field device that is another field device belonging to the same group, an operation of the second field device being stopped.
    Type: Application
    Filed: April 25, 2018
    Publication date: November 1, 2018
    Applicant: Yokogawa Electric Corporation
    Inventors: Hirotsugu GOTOU, Hiroaki KANOKOGI