Abstract: A resonant pressure sensor with improved linearity includes a substrate including a substrate-fixed portion fixed to a housing-fixed portion and a substrate-separated portion separated from the housing-fixed portion in a first direction; a first resonator disposed in the substrate-separated portion to detect a change of a resonance frequency based on a strain caused by static pressure applied by a pressure-receiving fluid interposed in a gap between the housing-fixed portion and the substrate; a first electrode extending along a second direction to output an excitation signal to the first resonator; a second electrode that extends along the second direction and from which the first resonator outputs a signal having the resonance frequency; and a processor that measures the static pressure based on the detected change.

Abstract: A plant system includes: an access node connected to a network; a plurality of controllers configured to perform distributed control on a plurality of field devices provided in a plant; and a wireless communication unit provided in each group of a plurality of groups into which the plurality of controllers are grouped and connected to each controller in the corresponding group via a wired connection, and configured to connect each controller to the access node via a wireless connection.

Abstract: Sulfate ester modified cellulose nanofibers having an average fiber diameter in the range of 1 nm to 500 nm, and having sulfate ester modified hydroxyl groups on surfaces of the cellulose nanofibers. A method of producing cellulose nanofibers that are nanosized, that have a high crystallinity degree, and that have large aspect ratios, the method being a chemical method that does not require any physical pulverization, that is energy-saving, and that can be performed under mild reaction conditions. A method of producing modified cellulose nanofibers including modifying the surfaces of the cellulose nanofibers through esterification or urethanization. A method of producing cellulose nanofibers includes impregnating cellulose with a fibrillation solution containing dimethylsulfoxide, at least one carboxylic acid anhydride selected from acetic anhydride and propionic anhydride, and sulfuric acid to fibrillate the cellulose.

Abstract: The present invention provides methods, systems and computer program products that enable the optimized synchronization of data between mobile client devices assigned to field operators in an industrial plant and a centralized repository for plant data. The invention optimizes synchronization of data between mobile client devices assigned to field operators in an industrial plant and a centralized repository for plant data by selecting a reduced set of data records associated with a field operator, for data synchronization based on one or more of a set of data record selection parameters, and a set of version synchronization rules to ensure that only data records that are relevant to a field operator's foreseeable activities in a shift are downloaded to the field operator's mobile client device.

Abstract: A device maintenance apparatus includes a test executor configured to cause a device to output an output signal based on a test pattern that changes the output signal output from the device with an elapse of time, and a change instructor configured to issue a change instruction for changing at least one of a progress of an output of the output signal based on the test pattern and an output value of the output signal to the test executor in accordance with an instruction input while the test executor causes the device to execute the output of the output signal.

Abstract: Provided is an apparatus comprising: a detection unit configured to detect a state of an electric lock provided at a doorway; a first monitoring camera arranged on the inside of the doorway; a judging unit configured to judge, at a reference time of day, whether the electric lock is locked; and a sending unit configured to send image data captured by the first monitoring camera or location information of the image data to a destination corresponding to the electric lock, when the electric lock is not locked at the reference time of day.

Abstract: An engineering support system that supports engineering of a process control system, the engineering support system includes: a server device that creates a work list including work order information that specifies a work order of work included in the process control system; and at least one client device that gives work authority to each worker based on the work list issued by the server device and that enables work on devices included in the process control system within a scope of given work authority to be implemented in the work order.

Abstract: An information processing apparatus (10) is for supporting work by a user who uses drawings for a plant. The information processing apparatus (10) includes a controller (15). The controller (15) is configured to convert a drawing including elements configuring the plant into an abstract model represented by element information indicating the elements and connection information indicating a connection relationship between the elements. The controller (15) is configured to generate display information, when it is judged that a difference exists between one abstract model based on one drawing and another abstract model based on another drawing, for displaying the differing portion in a different form than another portion.

Abstract: An information processing device includes a virtualizer configured to operate as a proxy of hardware on the hardware, at least one virtual machine configured to function as a part of a process control system on the virtualizer, an address duplication determiner configured to determine duplication of an address on an external network when the external network is connected to the hardware, and an address duplication manager configured to cut a connection between the virtual machine and the external network when the duplication of the address is detected.

Abstract: In a device engineering method, data of a plant network hierarchy (PNH) and registered devices (RD) in a device management server are synchronized to a device simulation server (SS). In a simulation mode, at least one function of device management system is executed via communicating with simulated devices (SD), while the device management system being not communicatively coupled to any physical control station configured to control physical field devices in a real plant. Virtual parameters are introduced into the SD. For device configuration, simulation is made of configurable device parameters; non-configurable device parameters; and device status, with SD generated from DD files in the PNH for the RD in the FDCS. Parallel communications including sending communication requests from a CRH component to the SD in the PNH from the CRH component in the FDCS to the SD in the PNH are executed simultaneously.

Abstract: An information processing device includes a controller that: inputs information that is based on a raw material of a product that is produced at a plant to a physical model and acquires a first output result; inputs component information that is based on optical spectrum data that are obtained by spectroscopic sensing for the raw material and an output of the physical model to a machine learning model and acquires a second output result; and outputs information concerning a state of the plant based on the first output result and the second output result.

Abstract: An information processing device includes a controller that: acquires a first prediction result that indicates a state of a plant based on a physical model; acquires other prediction results that indicate a state of the plant, based on machine learning models that are generated based on data concerning the plant; and outputs information concerning a state of the plant based on the first prediction result and the other prediction results.

Abstract: An information processing device includes a controller and a display. The controller acquires a first prediction result that indicates information concerning a state of a plant that is predicted by a physical model, and acquires a second prediction result that indicates information concerning a state of the plant that is predicted by a machine learning model that is generated based on data concerning the plant. The display displays the first prediction result and the second prediction result.

Abstract: An optical fiber characteristics measurement system includes: an optical fiber characteristics measurement device including: an emission port configured to emit probe light; and an incidence and emission port connected to one end of a measurement target optical fiber and configured to emit pump light, stimulated Brillouin scattered light generated within the measurement target optical fiber being incident on the incidence and emission port; a first optical fiber having one end connected to the emission port and configured to guide the probe light to another end of the measurement target optical fiber; and an optical isolator provided between another end of the first optical fiber and the another end of the measurement target optical fiber, and configured to cause the probe light guided by the first optical fiber to be incident on the another end of the measurement target optical fiber.

Abstract: After an installation of an apparatus, although a state confirmation is necessary, if a display having a high display capability is mounted to the apparatus to facilitate checking, the apparatus becomes large. Further, although it is considered that a terminal such as a personal computer is connected to an apparatus to display state information, when the apparatus is installed in a high place or a narrow gap, the connection is difficult. An apparatus is provided which includes a storage unit that stores state information on a plurality of types of states, a switching unit that switches a to-be-output state from among the plurality of types of states in response to receiving a switching operation by a user, an identification information output unit that outputs a first indication for identifying a type of a to-be-output state, and a state information output unit that outputs state information on a to-be-output state.

Abstract: A power supply system includes at least two power supply devices that supply a current to a load. Each of the at least two power supply devices includes a converter configured to generate a current that is to be supplied to the load, an FET that is connected in series between the converter and the load, a gate voltage monitoring circuit configured to monitor whether a gate voltage of the FET has fallen below a predetermined first reference voltage, and an alarm generation circuit configured to generate an alarm according to a result of monitoring by the gate voltage monitoring circuit.

Abstract: An engineering assistant system 1 includes: an engineering server 10 that issues a work list including information related to work necessary for performing the engineering of a process control system 100; and an at least one engineering client 20 that grants work authority for each worker based on the work list issued by the engineering server 10 and makes it possible to perform work on a constituent apparatus that constitutes the process control system 100 within a range of granted work authority.

Abstract: Method and system for engineering with sequence libraries are provided. A first set of engineering data is defined for a first engineering project to generate a first sequence library for the first engineering project, independently of one or more lower level engineering projects for configuring one or more field control systems. The sequence library assignment process is to assign the first sequence library to the one or more lower level engineering projects simultaneously to generate one or more first assigned sequence libraries for the one or more lower level engineering projects for configuring the one or more field control systems. The parallel configuration process is to perform a parallel configuration process which configures the first sequence library for the first engineering project, while assigning the first sequence library to another one or more lower level engineering projects.

Abstract: A spectrometry device includes a switch and a converter. The switch acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum and switches between outputting the first reception signal and outputting the second reception signal based on control by a controller. The converter converts the first reception signal or the second reception signal output from the switch into a digital signal.

Abstract: In a real-time communication processing system of the present disclosure, at least one computer transmits a notification to a management apparatus when a virtual machine on the computer has the possibility of experiencing unstable operation related to real-time communication processing. When a virtual processor is free, the management apparatus instructs the computer to allocate the virtual processor to the virtual machine that has the possibility of experiencing unstable operation. When a virtual processor is not free, the management apparatus instructs the computer to allocate a virtual processor, secured by live migration of a virtual machine capable of live migration, to the virtual machine that has the possibility of experiencing unstable operation.