公开(公告)号：US20240006989A1

公开(公告)日：2024-01-04

申请号：US18039398

申请日：2022-01-06

Applicant: FANUC CORPORATION

Inventor： Kazuya GOTO ,  Yoshinori SAKAI

IPC: H02M3/00 ,  H02M3/335 ,  H02M1/32 ,  H02M1/00

CPC classification number: H02M3/01 ,  H02M3/33569 ,  H02M1/325 ,  H02M1/0022

Abstract: The resonance power supply circuit is provided with a transformer provided with primary and secondary winding wires, first and second switching elements for applying a rectangular wave voltage to one end of the primary winding wire, a resonance capacitor connected to the other end of the primary winding wire, and a control unit that alternately turns on and off the first and second switching elements. The resonance power supply circuit is further provided with a first output circuit including first and second rectification elements, a first capacitor, an output capacitor, and a backflow prevention rectification element, a second output circuit including third and fourth rectification elements, a second capacitor, the output capacitor, and a third switching element provided between the second capacitor and the output capacitor, and a circuit for providing, as feeding back, voltage information indicating a first voltage of the first capacitor to the control unit.

公开(公告)号：US20240348614A1

公开(公告)日：2024-10-17

申请号：US18701724

申请日：2021-11-19

Applicant: FANUC CORPORATION

Inventor： Kazuya GOTO

IPC: H04L9/40 ,  G05B19/4155

CPC classification number: H04L63/10 ,  G05B19/4155 ,  G05B2219/31449

Abstract: A control device comprises: a measurement unit that measures the physical state of at least one electronic component to measure the temperature of a representative part thereof; a recording unit that records a model wave of the physical state of the electronic component, and the temperature of the representative part at the time of recording the model wave as a reference temperature; a correction unit that corrects the model wave based on the temperature of the representative part and the reference temperature; and a detection unit that adds up, at regular intervals, an absolute value of a difference between the measured physical state of the electronic component and the physical state of the corrected model wave, and determines whether or not the added value exceeds a threshold value for determining an unauthorized access that imposes excessive loads on resources to disturb operation of the control device or network.

公开(公告)号：US20170302171A1

公开(公告)日：2017-10-19

申请号：US15480371

申请日：2017-04-06

Applicant: FANUC CORPORATION

Inventor： Kazuya GOTO

IPC: H02M3/156 ,  G05B15/02

CPC classification number: H02M3/156 ,  G05B15/02 ,  H02M3/157 ,  Y02P90/86

Abstract: A digitally controlled power supply apparatus includes: a switching device converting an input voltage to output a converted voltage based on gate signals that it has received; a smoothing circuit smoothing the converted voltage to output a power supply voltage; an AD converter AD converting the power supply voltage from the smoothing circuit to output a power supply voltage digital data; a PID controller performing PID control operation to an error between a setpoint and the power supply voltage digital data; a switching drive circuit generating gate signals, based on an operation outcome of the PID controller; a control parameter adjuster dynamically performing automatic adjustment of control parameters of the PID controller, based on a history of fluctuations indicated in samplings of the power supply voltage digital data; and a control parameter output unit outputting the control parameters of the PID controller.

公开(公告)号：US20180373233A1

公开(公告)日：2018-12-27

申请号：US16012803

申请日：2018-06-20

Applicant: FANUC Corporation

Inventor： Kazuya GOTO

IPC: G05B23/02 ,  G06F15/18 ,  G06F11/30

Abstract: A machine learning device included in a failure predicting apparatus includes a state observing unit that observes, as state variables indicating a current environmental state, operating state data indicating an operating state of the management target device and device configuration data indicating a device configuration of the management target device, a label data acquiring unit that acquires, as label data, maintenance history data indicating a maintenance history of the management target device, and a learning unit that, by using the state variables and the label data, learns a failure timing of a printed circuit board included in the management target device, the operating state data, and the device configuration data such that the failure timing is associated with the operating state data and the device configuration data.

公开(公告)号：US20200086489A1

公开(公告)日：2020-03-19

申请号：US16521884

申请日：2019-07-25

Applicant: FANUC CORPORATION

Inventor： Kazuya GOTO

IPC: B25J9/16 ,  G06F3/14 ,  G08B21/18 ,  G05B19/4155 ,  B25J19/06

Abstract: To assist appropriately in performing a recovery operation of a device. A guidance information presentation apparatus includes: a guidance information receiving unit configured to acquire guidance information including access information and safety information, the access information including a moving route to reach an estimated location of a failure in an apparatus as a recovery target, and an operation procedure, the safety information indicating safety of the moving route and the operation procedure in the access information; and a guidance information displaying unit configured to perform, on a basis of the guidance information, notification for a guidance of the moving route to the estimated location of the failure in the apparatus as the recovery target, and the operation procedure, and notification that indicates the safety of the moving route and the operation procedure.

公开(公告)号：US20170302687A1

公开(公告)日：2017-10-19

申请号：US15489425

申请日：2017-04-17

Applicant: FANUC CORPORATION

Inventor： Kazuya GOTO

IPC: H04L29/06 ,  G05B15/02 ,  H04L29/08

CPC classification number: H04L63/1416 ,  G05B15/02 ,  H04L43/0876 ,  H04L63/1425 ,  H04L67/12

Abstract: A cell control device able to prevent unauthorized communication in which a third party makes an unauthorized access to the apparatus. The cell control device includes a communication section that communicates with a production management device or plural machines, a communication controller that executes communication by the communication section, and a communication determination section that monitors an actual communication traffic and compares the actual communication traffic with a planned communication traffic of a communication planned to be executed by the communication controller to determine whether the actual communication traffic is more than the planned communication traffic.