Search Results 1-20 of 160

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Drift-Free Instantaneous State Observer for Fine Force Control of Two-inertia System [in Japanese]

篠崎泰雅 , 川合勇輔 , 横倉勇希 , 大石潔 , 宮崎敏昌

電気学会研究会資料. IIC 2020(8-15・17-26), 43-48, 2020-09-01
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Drift-Free Instantaneous State Observer for Fine Force Control of Two-inertia System [in Japanese]

篠崎泰雅 , 川合勇輔 , 横倉勇希 , 大石潔 , 宮崎敏昌

電気学会研究会資料. MEC = The papers of Technical Meeting on "Mechatronics Control", IEE Japan 2020(1-8・10-19), 43-48, 2020-09-01
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Development of Tendon-driven Legs Robot that can Simultaneously Record Dynamical Properties involving Controller, Mechanics, and Environment System [in Japanese]

ISHIKAWA Shuya , KIM Sungi , SAKAMOTO Yu , FUJIOKA Gakuto , IKEMOTO Yusuke

… It is expected that the dynamical properties, such as inertia, reaction forces, internal forces flow could be one of the constraints which support to reduce the exploring space. … To investigate the relationship between an effectiveness of machine learning and constraints induced by body-dynamics, we developed the whole systems including tendon-driven legs robot, split-belt treadmill, and hip joint with a six-axis sensor to measure how a multi-legged animal affected itself and the environment during walking. …

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2020(0), 1A1-E04, 2020

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Progress of Home Healthcare Sensor in Our Experience: Development of Wearable and Unobtrusive Monitoring

Tamura Toshiyo

… This paper reviews the results of our research related to sensor development. … Then wearable sensors used for photoplethysmography, inertia sensor, deep body temperature measurement, and oxygen uptake monitor are presented. …

Advanced Biomedical Engineering 9(0), 189-196, 2020

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Minimum-Variance Load-Side External Torque Estimation Robust Against Modeling and Measurement Errors

Yamada Shota , Fujimoto Hiroshi

… The load-side torque in a two-inertia system with a load-side encoder can be estimated by using either of the two observers that present different levels of robustness against modeling and measurement errors on the motor side and transmission part. … Analyses of the observer with and without a joint torque sensor unveil the advantages and limitations of applying a joint torque sensor for external torque estimation. …

IEEJ Journal of Industry Applications 9(2), 117-124, 2020

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Rotational Property of a Ball in Flight by using Built-in Acceleration Sensors [in Japanese]

NAGAOKA Hiroyuki , HIYAMA Rio , TSUBOI Kazuhiro , NODA Shigeho , HIMENO Ryutaro

… Direct measurement of the rotational characteristics in flight of a baseball-like ball is performed by using a built-in acceleration sensor unit. … This sensor unit consists of one three-axis sensor for low acceleration and three sensors for high acceleration. … In the preliminary experiment, we determine the moment of inertia of the ball set up the sensor unit and it has different values in each rotation axis. …

The Proceedings of the Symposium on sports and human dynamics 2019(0), B-33, 2019

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A mathematical modelling of pitching arm for calculating valgus stress on elbow during baseball pitching with a single inertia sensor [in Japanese]

OSUMI Yuya , YANAI Toshimasa

… A major reason for the overestimation is presumably that the ball, hand and forearm were assumed to be aligned straight and the inertia properties of the single-rigid-body was defined as the sum of the inertia properties of the three segments in this aligned position. … To solve this problem, we computed the inertia properties of the single rigid body for various virtual positions of hand and ball to find out the best position with which the valgus stress can be determined accurately. …

The Proceedings of the Symposium on sports and human dynamics 2019(0), A-10, 2019

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Development of a Wheelchair-Based Upper-Limb Assistance Device Controlled by a Predictive Motion Recognition System

YANG Hao , LIAO Yun-Ting , LEE Hee-Hyol , TANAKA Eiichiro

… According to the angles data of user's upper limb detected by Kinect, we established a 3-dimension dynamic model to calculate the necessary torques of each joint, in which we considered about inertia of human. … By using the established mathematical model in the prediction model and the updated model, we can predictively supply the assistance for upper-limb based on Kinect sensor. …

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2019(0), 2P2-L06, 2019

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Progress of Home Health Care Sensor in Our Experience: Development of Wearable and Unobtrusive Monitoring [in Japanese]

TAMURA Toshiyo

… In this paper, our researches related sensor development are reviewed. … Then wearable monitors with photoplethysmogram, inertia sensor, deep body temperature and oxygen uptake sensor are presented. …

Transactions of Japanese Society for Medical and Biological Engineering 57(4-5), 119-125, 2019

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10

Vibration Control using Deformation of Magnetic Fluid [in Japanese]

ISHII Yuji , MARUYAMA Yutaka

… The deformation changes inertia of an object. … Since slight change of inertia reduces vibration, the method does not require expensive component such as long range sensor and long stroke actuator. …

The Proceedings of Conference of Kanto Branch 2019.25(0), 19G12, 2019

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11

Loss of Mechanical Energy Efficiency in the Sit-to-stand Motion of Acute Stroke Patients

Hanawa Hiroki , Hirata Keisuke , Miyazawa Taku , Kubota Keisuke , Sonoo Moeka , Kokubun Takanori , Kanemura Naohiko

… The purpose of this study was to demonstrate the usefulness of a small inertia sensor for quantitative classification of movement disorders based on the change in mechanical energy in patients following a stroke. … The three-dimensional angle in the global coordinate system of the inertial sensor attached to the participant's body was then calculated. …

Advanced Biomedical Engineering 8(0), 92-98, 2019

J-STAGE Ichushi Web
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Development of a motion capture system for swimming by using inertia motion sensors [in Japanese]

HIROTA Kodai , NAKASHIMA Motomu

… The objective of this study was to develop a new motion capture system for swimming by using inertia motion sensors that swimmers can use in a daily training. … In addition, sensor parts were waterproofed by using freezer bags, silicon type fillers, and water-resistant adhesive. …

The Proceedings of the Symposium on sports and human dynamics 2018(0), A-17, 2018

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13

Local coordinate correction algorithm for measurement of body orientation by wearable inertia / geomagnetic sensor [in Japanese]

SEKINE Kodai , NAITO Hisashi , TANAKA Shinobu

… In motion measurement, a measurement method using 9 axis sensor is attracting attention in that they are less expensive, convenient and less restrictive in measurement area than optical motion capture system. …

The Proceedings of the JSME Conference on Frontiers in Bioengineering 2018.29(0), 1B24, 2018

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Feature Selection Algorithm Considering Trial and Individual Differences for Machine Learning of Human Activity Recognition

Omae Yuto , Takahashi Hirotaka

… In recent years, many studies have been performed on the automatic classification of human body motions based on inertia sensor data using a combination of inertia sensors and machine learning; … training data is necessary where sensor data and human body motions correspond to one another. … We have verified the effectiveness of the proposed evaluation method by applying it to sensor data for butterfly and breaststroke swimming. …

Journal of Advanced Computational Intelligence and Intelligent Informatics 21(5), 813-824, 2017

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Development of pitching analysis system using baseball-type sensor [in Japanese]

SHIBATA Shohei , NARUO Takeshi , KASE Yuto , YAMAMOTO Michiharu , MORI Masaki , URAKAWA Kazuo , HIROSE Kiyoshi , JINJI Tsutomu

… The purpose of this study is to develop the system analyzing pitching data using baseball-type sensor and to examine the accuracy of the developed system using Doppler radar system (Trackman baseball, Trackman) and high speed camera. … The developed baseball-type sensor in this study, which consists of accelerometer, gyroscope, and Magneto-Impedance sensor, measured 6-axis acceleration, 3-axis angular velocity, and 3-axis magnetic field. …

The Proceedings of the Symposium on sports and human dynamics 2017(0), B-3, 2017

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Phase shift monitoring based on mode-decoupled disturbance observer for chatter detection

YAMATO Shuntaro , YAMADA Yuki , ITO Takamichi , MATSUZAKI Hirohiko , KAKINUMA Yasuhiro

… To construct the sensor-less MEF monitoring system on the ball-screw-driven system, mode-decoupled cutting force estimation was applied to two inertia model, and the phase shift was monitored in the vibration mode. …

Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2017.9(0), 019, 2017

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Novel Performance Evaluation Method and Controller Design for Vibration Suppression Device —Active Wheel Damper— for Sprayer Booms Realized by Low-Resolution Active Control System [in Japanese]

HOSHINO Yohei , ANDO Kyohei , SUZUKI Soichiro , Yang LiangLiang

… The AWD also achieves lightweight and higher inertia by using the flywheel, and can realize sky-hook control easily because the absolute angular velocity of the flexible structure is measured by the gyro sensor. …

The Proceedings of the Dynamics & Design Conference 2017(0), 317, 2017

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Proposal of an Easy Method for Logging Human Gait by Measurement of Inertia and Vibration on Ankles:–Quantitative Evaluation of Walking Distance and Stride– [in Japanese]

KATO Yoshihiro , NAGANO Hikaru , KONYO Masashi , TADOKORO Satoshi

… We propose a method to estimate the trajectories of pedestrian accurately using an Inertial Measurement Unit (IMU) and vibration sensor measured at the upper ankles. …

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2017(0), 2P2-N08, 2017

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19

Swing motion Control of Wire Suspension System using Gyro effect [in Japanese]

INOUE Takashi , HARADA Kenta , OSUMI Hisashi

… Since the suspended base cannot be completely restrained with four wires, the base swings against external forces or inertia forces caused by the base motions. … The base swing motion is eliminated by the gyro effect which is feedback controlled through an IMU sensor embedded in the base. …

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2017(0), 1P2-H09, 2017

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20

A study on gesture recognition using motion information of arm measured by inertia sensors [in Japanese]

HATORI Ayaka , KOBAYASHI Hiroyuki

… The wearble devices commonly have an intertia sensor and used for getting arm motion. …

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2017(0), 1A1-H01, 2017

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