Hitachi Patente

A first secure server: encrypts a data encryption key with a unique key unique to the first secure server; stores the encrypted unique key therein; generates a first ciphertext obtained by encrypting the data encryption key with a first shared key; transmits the first ciphertext to the second secure server; generate a second ciphertext obtained by encrypting an escrow target data with the data encryption key; stores the second ciphertext in the first secure server therein; and outputs duplicated data of the second ciphertext, and a second secure server: decrypts the first ciphertext received from the first secure server with the first shared key to extract the data encryption key; generates a third ciphertext obtained by encrypting the extracted data encryption key with a private key; stores the third ciphertext therein; and delete the private key therefrom.

A design support device (2) of the present invention includes: a virtual space creation unit (211) which creates image data of a virtual space simulating a site of a design target; a penetration creation support unit (213) which has a function of creating a penetration for a penetration formation target portion in the virtual space, and is capable of creating image data of an installation area image in which an image of an area where the penetration is formable is superimposed on an image of the penetration formation target portion in the virtual space in a case where information regarding a design specification of the penetration to be created in the penetration formation target portion is acquired from an external device; and a communication unit (23) which is communicably connected to the external device, receives information regarding a design specification of the penetration from the external device, and transmits image data of the installation area image created by the penetration creation support unit to the external device.

A method for performing system simulations that comprises receiving, by a processor, input data for generating a simulation model; generating, by the processor, the simulation model for performing simulations based on the input data, the simulation model comprises a voxel model that performs simulations as voxel-by-voxel representations; and generating, by the processor, a simulation report based on simulation output of the simulation model.

A power conversion device includes a circuit that converts DC power into AC power by a pulse width modulation method, and a control device that controls the circuit. A control device executes: processing of controlling the circuit to operate in an asynchronous mode that asynchronously generates a carrier and a modulation wave and a synchronous mode that is used in an output frequency region higher than an output frequency region in the asynchronous mode and in which a carrier pulse number per modulation wave cycle is set from a first order to an n-th order as a multiple of 3 from a high frequency side to a low frequency side; processing of setting an upper limit frequency of a k-th-order (k<n) carrier frequency region to a high frequency side of a common upper limit frequency initially set for each order of the synchronous mode; and processing of setting an upper limit frequency of a (k+1) th-order carrier frequency region to a low frequency side of the common upper limit frequency.

A computer system stores information on a model that receives data including values of parameters representing attributes of the site and the group as an input and outputs an outcome indicator. The computer system generate an initial data including initial values of the parameters, repeatedly perform processing of changing the initial value of a parameter included in the initial data to generate a piece of analysis data, repeatedly perform processing of calculating a difference between the outcome indicator obtained by inputting the piece of analysis data into the model and the outcome indicator obtained by inputting the initial data into the model, and calculating a evaluation indicator representing a magnitude of an influence of a value of the parameter changed for generating the piece of analysis data on the outcome indicator based on the difference; and select a measure based on the evaluation indicator.

A production line planning device for planning a production line for a product includes: a storage unit configure to store product operation information in which a product and an operation necessary for producing the product are associated and stored, operation facility correspondence information in which the operation and a facility necessary for performing the operation are associated and stored, component classification information in which a main component and an auxiliary component that make up the facility are associated and stored, and facility common ID information in which the main component of the facility and a reference facility are associated and stored; a process planning variable calculation unit configured to, when the operation included in the product operation information matches the operation included in the operation facility correspondence information, add the operation, the facility, and a decision variable to process planning variable information in a case where the facility included in the matched operation facility correspondence information is not included in the reference facility in the facility common ID information; a process planning variable cost calculation unit configured to obtain, based on the component classification information, a cost of the operation and the facility corresponding to the added decision variable; and an output device configured to output the number of the decision variables added by the process planning variable calculation unit and an investment cost obtained by adding up costs of the respective decision variables obtained by the process planning variable cost calculation unit.

An environment evaluation device (1) of the present invention approximates, using a non-linear model (32), time-series relations among an objective variable serving as a criterion for calculating a biodiversity credit and explanatory variables of an analysis target, evaluates a degree of a fluctuation and a symmetry of the fluctuation of the objective variable based on the approximated non-linear model (32), estimates an interaction between the explanatory variables of the analysis target based on the approximated non-linear model (32), estimates a time point at which a value of the objective variable converges in the non-linear model (32), and the value of the objective variable which converges, based on a result of the evaluation of the degree of the fluctuation and the symmetry of the fluctuation, as well as, the estimated interaction, and evaluates, based on the value of the objective variable which converges, a change amount of the objective variable which non-linearly transitions relative to the explanatory variables of the analysis target.

Provide support for evidence record management of legal compliance in an organization. A legal compliance support system manages legal operation management information associating a legal requirement, which defines an item to be implemented for compliance with a law or regulation, with evidence record information related to an evidence record necessary to indicate that compliance with the legal requirement has been implemented. The legal compliance support system analyzes the stored evidence record and presents the evidence record that satisfies the legal requirement as an evidence record candidate to a user through an output unit. The legal compliance support system receives the evidence record selected from the evidence record candidate by the user, associates the legal requirement satisfied by the evidence record with the evidence record selected from the evidence record candidate by the user, and registers the association as compliance record management information.

A pressure profiling method comprising receiving, by a processor, raw data from a plurality of sensors embedded in a pair of shoes being used by a user; performing, by the processor, preprocessing of the raw data to generate preprocessed data; calculating, by the processor, ground reaction force on the user using the preprocessed data; and performing, by the processor, at least one of posture adjustment recommendation generation, report generation, or additional data analysis using the ground reaction force derived from the preprocessed data.

A technique is provided that can prevent damage to a waste heat recovery heat exchanger. An air compressor includes cooling heat exchangers that perform heat exchange between cooling water and compressed air, and a cooling liquid pipe through which the cooling water flows. A waste heat recovery unit includes waste heat recovery heat exchangers that perform heat exchange between waste heat recovery water and compressed air, a waste heat recovery liquid pipe through which the waste heat recovery water flows, a waste heat recovery liquid inlet pipe and a waste heat recovery liquid outlet pipe that connect an auxiliary cooling facility and the waste heat recovery liquid pipe, flow path switching three-way valves that open and close the inlet and outlet pipes, and a temperature controller that controls the valves. When the temperature of the waste heat recovery water exceeds a threshold, the temperature controller opens the inlet and outlet pipes by controlling the three-way valves.

A biometric registration system receives personal information on a user, and control a first acquisition device to acquire first biometric data on the user; extracts a first feature amount from the first biometric data; registers pre-registration data in which the personal information and the first feature amount are associated with each other; controls, in a case where a registration procedure using a registration device is started, a second acquisition device to acquire second biometric data and third biometric data; extracts a second feature amount and a third feature amount from the second biometric data and the third biometric data; compares the first feature amount and the second feature amount to each other; and registers registration data in which the personal information included in the pre-registration data corresponding to the first feature amount that matches the second feature amount and the third feature amount are associated with each other.

The present invention addresses the problem of enabling the inheritance of skilled knowledge by generating a knowledge graph from a restoration work report and a skilled worker's work simulation in a virtual space, and appending skilled knowledge to the restoration work report using the knowledge graph and a Large Language Model (LLM). A work simulation system (110) allows a user to select, via an operation unit (105), a scene stored in a scene storage unit (120) in which a work simulation is to be performed within a virtual space (100). The system generates a knowledge graph based on a restoration work report stored in a restoration work report storage unit (140) and the work simulation, appends skilled knowledge to the restoration work report using the generated knowledge graph, and optionally determines standard work for the same case by using all knowledge graphs stored in a knowledge graph storage unit (130).

Embodiments of the present disclosure relate to a method and system for optimizing vehicle allocation in a transportation system. The method comprises receiving sensor values from a first set of vehicles of a plurality of vehicles. The method also comprises applying, using an AI model, an imputation technique on the sensor values to estimate missing sensor values corresponding to the second set of vehicles, and to generate a complete set of sensor values for the plurality of vehicles. Further, the method comprises determining an optimized vehicle plan for one or more routes of the transportation system based on the complete set of sensor values. The optimized vehicle plan comprises tripwise plan of vehicles with sensors and sensor-less vehicles for each route. Lastly, the method comprises allocating the plurality of vehicles to the one or more route at least based on the optimized vehicle plan.

A system for performing postural evaluation. The system comprises: a posture determination unit configured to receive motion and/or positional data relating to one or more parts of a user's body to determine a posture of the user; a task determination unit configured to use the determined posture and/or motion and/or positional data to determine a task being performed by the user; a posture evaluation unit configured to: retrieve a predetermined template posture corresponding to the determined task, and measure a difference between the determined posture of the user and the predetermined template posture; and a posture optimizer unit configured to: perform a mitigation action when the measured difference is greater than the a predetermined posture difference threshold.

An OAM radio wave transmitting and receiving system keeps an apparatus size from increasing by performing localized measurement of an OAM radio wave to acquire OAM radio wave information. A radio wave generating apparatus includes a controlling section and a radio wave transmitting section. The controlling section includes an OAM radio wave information setting section for generating a transmission radio wave signal according to an OAM mode order, a phase changing section for linearly changing a phase of the transmission radio wave signal over time depending on the OAM mode order, and a complex signal generating section for generating a complex signal from the transmission radio wave signal that has been changed in phase by the phase changing section and a reference signal. The radio wave transmitting section includes a complex signal converting section for breaking down a signal component of the complex signal into a real part and an imaginary part, a wireless processing section for generating a wireless signal from the signal component of the complex signal that has been broken down into the real part and the imaginary part, and an array antenna for transmitting the wireless signal as an OAM radio wave.

Once a technician detects and reports an equipment failure, diagnostic systems and methods herein automatically generate a diagnostic plan, detailing necessary parts, areas of interest, and actions to be taken. Using augmented reality (AR) indicators, a system guides the technician while a perception module analyzes their actions to recommend next steps. A planning component uses knowledge graph (KG) and LLM to create the diagnostic plan, without requiring extensive data labeling or model training. A tracking component enhances 3D detections by employing perception sensors and a 2D nested object detection model. A guiding component simplified processed for novice technicians by integrating 2D models and AR interactions to ensure efficient and accurate diagnostics.

An information processing unit (120), comprising a storage device (202) and a control device (201) configured to execute a program stored in the storage device (150, 202), wherein the information processing unit (120) configured to collect information of a mobile terminal (101) when the mobile terminal (101) is in a train (160) being operated, the mobile terminal (101) having a plurality of sensors (103, 104) configured to acquire information of acceleration of the mobile terminal (101) and information of location of the mobile terminal (101), and the information of the mobile terminal (101) including the information of acceleration of the mobile terminal (101) and the information of location of the mobile terminal (101), and the information processing unit (120) configured to process information of the level of ride quality on a plurality of running sections of a railway track according to the collected information on a plurality of the trains (160) so that the information processing unit (120) can extract information of a running section, of the plurality of running sections, on which the level of ride quality of the plurality of trains (160) has deteriorated.

A screw compressor (100) includes a first seal (8a), a second seal (8b), and a third seal (8c) which are non-contact seals from a rotor side (3) to a bearing side (10) of a shaft seal portion (16), a compressed gas supply device (40) which is different from a rotor that supplies compressed gas between the first seal (8a) and the second seal (8b), and a heating device (14) that heats the compressed gas supplied between the first seal (8a) and the second seal (8b) from the compressed gas supply device (40).

An object is to provide a technique that makes it possible to verify whether or not a configuration of an information system of an edge device or the like has a sufficient performance level that withstands long-term status changes and to generate a plan for an information system configuration capable of maintaining reliability. An evaluation device of the present invention includes: a power system evaluation unit that evaluates a power grid as a power system for adjusting a flow of electric power; an information system evaluation unit that evaluates the power grid as an information system for performing information processing and communication; a processing condition determination unit that formulates a plan for utilizing the power grid and utilizing a processing module, on a basis of a prediction about a change in the power grid during an evaluation period; an evaluation determination unit that calculates a performance index indicating a performance as the power system and a performance as the information system corresponding to a situation where the plan for the evaluation period is applied; and a configuration evaluation unit that sets an information system configuration of which the performance index during the evaluation period satisfies a performance requirement, as a system proposal capable of executing the plan.

An appropriate map is generated from an image obtained by imaging a ground surface on the ground surface.A generation apparatus (202) including a processor (301) that executes a program, and a storage device (302) that stores the program stores terrain data (111) including position information of each point of terrain and obtained by modeling the terrain, first image data obtained by imaging a subject that is a part of the terrain from a first imaging point on the terrain, and position information of the first imaging point, and executes determination processing of determining a point as an allocation destination to which information regarding a specific pixel corresponding to a line-of-sight vector in a pixel group forming the first image data is to be allocated based on a direction of the line-of-sight vector from the first imaging point to the subject, and generation processing of generating map data (112) corresponding to the terrain by allocating the information regarding the specific pixel determined by the determination processing to the point as the allocation destination.

The present disclosure provides a technique capable of increasing or decreasing the number of control devices in a control system for controlling a control target from a plurality of control devices. A control system of the present disclosure is a control system (300) including a plurality of control devices (301, 302), at least one control target (307) that is controlled by the plurality of control devices, and a computer (303) that is connected to the plurality of control devices and the control target via a control network, in which the computer is configured to execute processing of receiving an application to participate in the control system from an additional control device (311), processing of acquiring information related to states of the plurality of control devices and transmitting the information to the additional control device, and processing of managing transmission and reception in the control network.

Regarding a simulation target of a digital twin, even when some of areas or regions constituting the simulation target are isolated, it makes it possible to continue controlling the simulation target. A control system composed of a server computer and an edge computer(s) has a model at least at one computer among the server computer and the edge computer and a pseudo-model corresponding to the model at the other computer. The one computer generates first data to be used for specified processing at the other computer based on the model and transmits the first data to the other computer. The other computer: executes the specified processing at the other computer based on the first data received from the one computer; generates second data based on the pseudo-model when the first data cannot be received from the one computer; and executes the specified processing at the other computer based on the second data.

An operation on an inkjet recording device is performed without performing operations, such as interruption of an ink circulation process in an idle state and resetting, in a state in which execution of the ink circulation process is maintained. An inkjet recording device that ejects ink supplied from an ink container from a nozzle to perform printing on a printing target includes: a control unit executing an idle-mode ink circulation process of circulating ink in an idle state of the inkjet recording device, the idle-mode ink circulation process repeating the circulation of the ink in a path and a standby state at a predetermined time interval; and an operation display unit displaying a standby screen for the idle-mode ink circulation process. The operation display unit displays information for operating the inkjet recording device on the standby screen in a state in which the control unit maintains the execution of the idle-mode ink circulation process, and the inkjet recording device receives an operation on the inkjet recording device based on the information displayed on the standby screen.

Systems and method for a manufacturing environment, including collecting sound signals by at least one sound collection device; converting the collected sound signals to digital sound data; extracting human sound data from the digital sound data; extracting environmental sound data from the digital sound data; executing word detection on the human sound data; executing emotion analysis from the extracted human sound data; and for analysis of the word detection and the emotion analysis indicative of an emergency: controlling one or more associated machines in the manufacturing environment in response to the emergency, wherein a location of the one or more associated machines is derived from the environmental sound data.

Battery depletion can be avoided and the supply of grid power is stabilized while enhancing a renewable energy utilization rate. A charge/discharge planning apparatus: creates a renewable energy power generation amount fluctuation scenario with a changed power generation amount of renewable energy, and a grid power fluctuation scenario with a changed demand for grid power on the basis of at least one of weather forecast information and grid power demand prediction information; executes a simulation regarding each of the plurality of proposed charge/discharge plans under at least one of the renewable energy power generation amount fluctuation scenario and the grid power fluctuation scenario and calculates a charge/discharge plan evaluation value based on an execution result of the simulation regarding the plurality of proposed charge/discharge plans; and adopts any one charge/discharge plan from among the plurality of proposed charge/discharge plans on the basis of the calculated charge/discharge plan evaluation value so that a preset constraint condition will be satisfied.

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A repair instruction device is provided with a shape measurement unit configured to determine an additional target shape by measuring a shape of a repair target portion in a repair target object; a current distribution prediction unit configured to assume a gel material for electroplating to be applied to the repair target portion and an electrode, and calculate a current distribution at the repair target portion; a repair design unit and repair disposition position instruction unit configured to determine shapes and positions of the gel material and the electrode based on the additional target shape and the current distribution; and an output unit configured to output an electroplating application condition including the shapes of the gel material and the electrode, the positions of the gel material and the electrode, a current value, and an impressing time.

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