公开(公告)号：US20230367306A1

公开(公告)日：2023-11-16

申请号：US18173093

申请日：2023-02-23

Applicant: Industrial Technology Research Institute

Inventor： Po-Han Chang ,  An-Chun Luo ,  Tien I Kao ,  Ming-Ji Dai ,  Yi-Jen Lin ,  Po-Huan Chou

IPC: G05B23/02 ,  G06N20/00

CPC classification number: G05B23/0283 ,  G06N20/00

Abstract: A method and an apparatus for equipment anomaly detection are provided. In the method, multiple signals of an equipment during normal operation or appearance images of the equipment when an appearance is not damaged are acquired in advance by using a data acquisition device to train a machine learning model stored in a storage device. A real-time signal of the equipment during a current operation or a current image of the appearance of the equipment is acquired by using the data acquisition device, and input to the trained machine learning model to output a detection result indicating a current operation state of the equipment or a current state of the appearance of the equipment.

公开(公告)号：US10705327B2

公开(公告)日：2020-07-07

申请号：US15860152

申请日：2018-01-02

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Pin-Hao Hu ,  Shao-Chuan Lu ,  Hsuan-Chang Lee ,  Po-Huan Chou ,  Min-Kai Lee

IPC: G02B26/08 ,  G02B27/40 ,  G02B27/14 ,  B23K26/035 ,  B23K26/06 ,  B23K26/067 ,  G02B27/28 ,  B23K26/402 ,  B23K26/384 ,  B23K26/40 ,  B23K26/382 ,  B23K26/082 ,  G02B26/10 ,  B23K103/00 ,  B23K101/00 ,  B23K101/42

Abstract: A light emitting method includes passing a laser beam through at least one offset assembly and a focusing assembly in sequence, and actuating, by a control-manipulating mechanism, the offset assembly to cause the laser beam to be offset, so that the laser beam can quickly produce a controllable opening of any shape in a drilling process.

公开(公告)号：US11658599B1

公开(公告)日：2023-05-23

申请号：US17548617

申请日：2021-12-13

Applicant: Industrial Technology Research Institute

Inventor： Wen-Che Shen ,  Cheng-Min Chang ,  Chun-Chieh Chang ,  Po-Huan Chou

IPC: H02P27/08 ,  G01R15/04 ,  G01R19/00 ,  H02M7/5387

CPC classification number: H02P27/08 ,  G01R15/04 ,  G01R19/0007 ,  H02M7/53871

Abstract: A voltage measurement device for pulse-width modulation (PWM) signals is provided, which includes a conversion circuit and a processing circuit. The conversion circuit receives a first PWM signal and a second PWM signal from a motor driving device, and converts the first PWM signal and the second PWM signal into the absolute value signal and the polarity signal of the line-to-line voltage signal between the first PWM signal and the second PWM signal. The processing circuit converts the polarity signal and the absolute value signal into a first integral signal and a second integral signal, and reconstructs the line-to-line voltage signal according to the first integral signal and the second integral signal so as to obtain the reconstructed voltage signal of the line-to-line voltage signal.

公开(公告)号：US11381157B1

公开(公告)日：2022-07-05

申请号：US17117246

申请日：2020-12-10

Applicant: Industrial Technology Research Institute

Inventor： Cheng-Min Chang ,  Chun-Chieh Chang ,  Hsi-Chih Chang ,  Po-Huan Chou

IPC: H02M1/38 ,  H02M3/158

Abstract: A motor drive is provided, which includes a control circuit, a first transistor, a first comparison circuit, a second transistor and a load. The control circuit includes a first output terminal and a second output terminal; the first output terminal outputs a first control signal; the second output terminal outputs a second control signal whose phase is inverse to the phase of the first control signal. The gate of the first transistor receives the first control signal. The first comparison circuit compares the gate-source voltage with a reference voltage to generate a first comparison signal. When the first comparison signal shows that the first control signal is reduced to be lower than the reference voltage, the second control signal generated by the second output terminal is transmitted to the gate of the second transistor.

公开(公告)号：US12039232B2

公开(公告)日：2024-07-16

申请号：US17134030

申请日：2020-12-24

Applicant: Industrial Technology Research Institute

Inventor： Chun-An Lin ,  Wen-Che Shen ,  Chih-Wei Yeh ,  Po-Huan Chou ,  Chun-Chieh Chang ,  Yu-Hsun Wu

IPC: H03M3/00 ,  G01R19/00 ,  G01R29/02 ,  G06F30/20 ,  G06F30/30 ,  H03M1/66

CPC classification number: G06F30/20 ,  G01R19/0084 ,  G01R29/023 ,  G06F30/30 ,  H03M1/66

Abstract: A hardware-in-the-loop (HIL) simulation device is provided, which includes a processing circuit and a pulse-width modulation (PWM) signal observation circuit. The PWM signal observation circuit includes an energy storage unit and the energy storage unit is coupled to the processing circuit. A signal source transmits a PWM signal to the processing circuit and the PWM signal observation circuit, and the energy storage unit is charged when the PWM signal is at high level. The processing circuit detects the voltage of the energy storage unit when detecting the falling edge of the PWM signal so as to calculate the duty cycle of the PWM signal.

公开(公告)号：US10241496B2

公开(公告)日：2019-03-26

申请号：US14955627

申请日：2015-12-01

Applicant: Industrial Technology Research Institute

Inventor： Po-Huan Chou ,  Wen-Chuan Chen ,  Feng-Chi Li

IPC: G05B19/402

Abstract: A multi-axis motor synchronization control system is provided, which may include a plurality of driving axes and the driving axes are coupled to one another; each of the driving axes may include a position loop controller, a velocity loop controller, a motor and a synchronization calibration device. The position loop controller may generate a velocity signal according to a position command. The velocity loop controller may generate a velocity command according to the velocity signal. The motor may operate according to the velocity command. The synchronization calibration device may calculate the average value of the position signal of the motor and the position signals of the motors of the adjacent driving axes, and then feedback the average value to the position loop controller so as to perform the synchronization calibration.