Abstract: Included are: a machining data acquiring unit to acquire machining data including data related to time-series machining conditions to perform machining for a plurality of steps and data related to a machining state for the plurality of steps on a basis of the machining conditions; an analysis unit to calculate an importance with respect to machining data; an extraction unit to extract transfer learning data for performing transfer learning of a first machine learning model on a basis of the importance; and a learning unit to perform the transfer learning of the first machine learning model by using the transfer learning data, and generate a second machine learning model that receives, as an input, data related to the machining conditions in time series for the plurality of steps and outputs data related to a machining state after execution for the plurality of steps.

Abstract: The present invention relates to a method of producing silica particles without using citric acid and also provides silica particles having excellent true density and excellent dispersibility. Provided are silica particles having (1) a true density of 0.8 g/cm3 to 1.4 g/cm3, (2) a particle size distribution in which a frequency of particles larger than twice an average particle size is 15% or less, and (3) a water absorption of 1.0 mass % or less.

Abstract: A motor controller includes a drive control unit that drives a motor on the basis of a control command, operates a control target made up of the motor and a mechanical load, and performs an initialization operation of setting the control target in an initial state and an evaluation operation starting from the initial state. Further, there is a learning unit that determines the control command to be used in the evaluation operation, on the basis of the result of learning the control command used in the evaluation operation, and a state sensor signal in association with each other. Further, there is an adjustment management unit that determines, on the basis of the timing at which to perform a first process.

Abstract: The present technology relates to an information processing device, an information processing method, and a program that makes it possible to improve inference accuracy of inference processing for an inference image to be input. Inference processing is performed on an input inference image, and an image quality of the inference image is corrected based on an image quality of a teacher image used for learning in an inference unit.

Abstract: A simulation program is installed on an engineering setting tool. A controller control simulator simulates control performed by a controller by executing a controller program. A machine operation simulator simulates an operation of a machine using a machine model being a model of the machine in a library file format.

Abstract: A positioning control device includes a position-command generation unit to generate a position command by which a shape of an acceleration in an accelerating section and a decelerating section is determined on the basis of a position command parameter, a drive control unit to drive a motor such that a detected position value of the motor or a control target follows the position command, an evaluation unit to calculate an evaluation value regarding positioning performance on the basis of a detected position value of the motor or the control target during execution of positioning control on the control target, and a learning unit to obtain a learning result by learning a relation between the position command parameter and the evaluation value when positioning control is executed plural times, while changing each of shapes of an acceleration in an accelerating section and a decelerating section independently.

Abstract: A positioning control device, in which motion of a motor in positioning operation of causing a mechanical load connected to the motor to move by a target moving distance is specified by operational conditions and command parameters, includes an adjustment unit performing the positioning operation based on an adjustment condition and a trial parameter, which are an operational condition and a command parameter, and determining one of the command parameters to be an excellent parameter corresponding to the adjustment condition based on an evaluation result based on the state of the motor or the mechanical load during positioning operation performed; and an estimation unit determining one of the command parameters to be an estimated excellent parameter corresponding to a non-adjustment condition, which is one type of the operational conditions, based on an adjustment record being a pair of the adjustment condition and the excellent parameter corresponding to the adjustment condition.

Abstract: Included are: a machining data acquiring unit to acquire machining data including data related to time-series machining conditions to perform machining for a plurality of steps and data related to a machining state for the plurality of steps on a basis of the machining conditions; an analysis unit to calculate an importance with respect to machining data; an extraction unit to extract transfer learning data for performing transfer learning of a first machine learning model on a basis of the importance; and a learning unit to perform the transfer learning of the first machine learning model by using the transfer learning data, and generate a second machine learning model that receives, as an input, data related to the machining conditions in time series for the plurality of steps and outputs data related to a machining state after execution for the plurality of steps.

Abstract: A positioning control device, in which motion of a motor in positioning operation of causing a mechanical load connected to the motor to move by a target moving distance is specified by operational conditions and command parameters, includes an adjustment unit performing the positioning operation based on an adjustment condition and a trial parameter, which are an operational condition and a command parameter, and determining one of the command parameters to be an excellent parameter corresponding to the adjustment condition based on an evaluation result based on the state of the motor or the mechanical load during positioning operation performed; and an estimation unit determining one of the command parameters to be an estimated excellent parameter corresponding to a non-adjustment condition, which is one type of the operational conditions, based on an adjustment record being a pair of the adjustment condition and the excellent parameter corresponding to the adjustment condition.

Abstract: A motor controller includes a drive control unit that drives a motor on the basis of a control command, operates a control target made up of the motor and a mechanical load, and performs an initialization operation of setting the control target in an initial state and an evaluation operation starting from the initial state. Further, there is a learning unit that determines the control command to be used in the evaluation operation, on the basis of the result of learning the control command used in the evaluation operation, and a state sensor signal in association with each other. Further, there is an adjustment management unit that determines, on the basis of the timing at which to perform a first process.

Abstract: An electromagnetic valve driving device includes: a maximum detection unit configured to detect a maximum point when time-series data of a differential value of a counter electromotive voltage generated in a solenoid has changed from an increase to a decrease by retrospectively tracing the time-series data in an opposite direction of a time series; and a valve closing time detection unit configured to execute a determination process of retrospectively tracing the time-series data from the maximum point detected by the maximum detection unit in the opposite direction and scanning whether or not an amount of decrease in the differential value from the maximum point exceeds a predetermined threshold value and detect a maximum time, which is a time of the maximum point, as a valve closing time of a fuel injection valve when there is an event in which the amount of decrease exceeds the predetermined threshold value.

Abstract: An electromagnetic valve driving device includes: a maximum detection unit configured to detect a maximum point when time-series data of a differential value of a counter electromotive voltage generated in a solenoid has changed from an increase to a decrease by retrospectively tracing the time-series data in an opposite direction of a time series; and a valve closing time detection unit configured to execute a determination process of retrospectively tracing the time-series data from the maximum point detected by the maximum detection unit in the opposite direction and scanning whether or not an amount of decrease in the differential value from the maximum point exceeds a predetermined threshold value and detect a maximum time, which is a time of the maximum point, as a valve closing time of a fuel injection valve when there is an event in which the amount of decrease exceeds the predetermined threshold value.

Abstract: A positioning control device includes a position-command generation unit to generate a position command by which a shape of an acceleration in an accelerating section and a decelerating section is determined on the basis of a position command parameter, a drive control unit to drive a motor such that a detected position value of the motor or a control target follows the position command, an evaluation unit to calculate an evaluation value regarding positioning performance on the basis of a detected position value of the motor or the control target during execution of positioning control on the control target, and a learning unit to obtain a learning result by learning a relation between the position command parameter and the evaluation value when positioning control is executed plural times, while changing each of shapes of an acceleration in an accelerating section and a decelerating section independently.

Abstract: A motor control apparatus includes: an oscillation instruction unit outputting an oscillation instruction signal; a filter unit performing filtering processing having frequency characteristic defined by a filter parameter; an oscillation forcing unit configuring a control loop in an oscillation period together with the filter unit, a current control unit, a motor, and a velocity calculation unit and causing the control loop to oscillate during the oscillation period in which the oscillation instruction signal is in the on-state; an amplitude evaluation unit acquiring, as an evaluation value, the amplitude ratio of an input signal to an output signal of the oscillation forcing unit when the control loop oscillates; and a filter adjustment unit comparing evaluation values provided when filter parameter candidates are set in the filter unit sequentially, selecting one of the filter parameters achieving a smaller evaluation value, and setting the selected filter parameter in the filter unit.

Abstract: A refrigeration cycle apparatus controller includes an expansion-valve controller configured to output an opening-degree command for an expansion valve based on a deviation between a discharge temperature of refrigerant discharged from a compressor and a set discharge temperature, and at least two control parameters including a proportionality coefficient and an integral coefficient, a flow-rate-correction-coefficient calculator configured to calculate a flow-rate correction coefficient from a refrigerant flow rate of refrigerant circulating through a refrigerant circuit and a preset flow-rate reference value, and a coefficient corrector configured to calculate the proportionality coefficient by correcting a preset proportionality-coefficient reference value based on the flow-rate correction coefficient, and calculate the integral coefficient by correcting a preset integral-coefficient reference value based on the flow-rate correction coefficient.

Abstract: The roller-to-roller conveyance control apparatus includes an amplitude target setting unit that sets an amplitude target value of the tension deviation; an adjustment execution command generation unit that provides a command to adjust the control gain; an adjustment manipulated-variable output unit that outputs an adjustment manipulated variable; a manipulated-variable amplitude determination unit that increases the amplitude of the adjustment manipulated variable until the amplitude of the tension deviation becomes larger than the amplitude target value; and a control-gain calculation device that calculates the control gain from the amplitude and the vibration period of the tension deviation. A tension-shaft speed controller controls a tension-control-shaft motor on the basis of the line speed reference and the adjustment manipulated variable during the adjustment of the control gain.

Abstract: A motor control apparatus includes: an oscillation instruction unit outputting an oscillation instruction signal; a filter unit performing filtering processing having frequency characteristic defined by a filter parameter; an oscillation forcing unit configuring a control loop in an oscillation period together with the filter unit, a current control unit, a motor, and a velocity calculation unit and causing the control loop to oscillate during the oscillation period in which the oscillation instruction signal is in the on-state; an amplitude evaluation unit acquiring, as an evaluation value, the amplitude ratio of an input signal to an output signal of the oscillation forcing unit when the control loop oscillates; and a filter adjustment unit comparing evaluation values provided when filter parameter candidates are set in the filter unit sequentially, selecting one of the filter parameters achieving a smaller evaluation value, and setting the selected filter parameter in the filter unit.

Abstract: A control apparatus includes: a control computing unit that generates an operation amount based on a control deviation, calculated by performing subtraction of a command value and a control amount, and a control gain; an adjustment-execution-command generating unit that generates an adjustment-execution command value indicating ON or OFF; a binary output unit that generates an adjustment-time addition value based on the control deviation and a hysteresis-width setting value; a standard-deviation estimating unit that calculates a low-frequency-component removed signal obtained by removing low-frequency components of the control amount or the control deviation and calculates a standard-deviation estimated value, which is an estimated value of a standard deviation; and a hysteresis-width computing unit that calculates a hysteresis-width computed value based on the standard-deviation estimated value and changes the hysteresis-width setting value of the binary output unit to the hysteresis-width computed value.

Abstract: An apparatus for controlling conveyance between rollers includes: a tension-control-amount-detector; a speed-shaft-speed-controller; a tension-shaft-speed-controller; a synchronous-speed-command-generation-unit synchronizing the speed-shaft speed command with a tension-shaft reference speed command; a tension-control-calculation-unit outputting a tension-control correction value based on proportional compensation based on a proportional gain, and integral compensation based on an integral gain; an adjustment-execution-command-generation-unit outputting an adjustment execution command during an automatic adjustment period; a binary-output-unit outputting one of positive and negative values of the additional-value amplitude as an additional value in adjustment during the automatic adjustment period; a tension-shaft-speed-command-generation-unit outputting a tension-shaft speed command based on the tension-shaft reference speed command, the tension-control correction value and the additional value in adjustment;

Abstract: An inter-roller conveyance control device conveying an object to be conveyed between a speed shaft roller driven by a speed shaft motor and a tension shaft roller driven by a tension shaft motor while providing tension to the object includes a gain table that stores a plurality of pairs of a conveyance condition variable changing while the object to be conveyed is conveyed and affecting an appropriate value of a control parameter and a control parameter candidate value that is an appropriate control parameter where, when the conveyance condition variable is changed, the device performs calculation on the basis of the conveyance condition variable and a gain calculation result and writes, into the gain table, the control parameter candidate value and the conveyance condition variable in association with each other when the calculation is completed.