Search Results 1-20 of 2085

  • Development and validation of Comprehensive Gait Assessment using InerTial Sensor score (C-GAITS score) derived from acceleration and angular velocity data at heel and lower trunk among community-dwelling older adults

    Misu Shogo , Asai Tsuyoshi , Doi Takehiko , Sawa Ryuichi , Ueda Yuya , Murata Shunsuke , Saito Takashi , Sugimoto Taiki , Isa Tsunenori , Tsuboi Yamato , Yamada Minoru , Ono Rei

    … Following the idea that a comprehensive score obtained by summing various gait parameters would sensitively reflect declines in gait performance, we developed a scoring method for community-dwelling older adults, the Comprehensive Gait Assessment using InerTial Sensor score (C-GAITS score). …

    Journal of NeuroEngineering and Rehabilitation (16), 62, 2019-05-28

    IR 

  • Research of How to Use of Exercise Activity and Intensity with 1Hz GPS and Heart Rate Memory on Physical Education and Sports for Children.  [in Japanese]

    橋詰 ゆり , 長津 恒輝 , 三林 良馬 , 杉山 康司

    本研究は1HzGPSとHRメモリー計を装着してダッシュやストップ,ターンなどの運動を行い,得られた移動距離,移動速度および運動強度から,これらの測定装置について小学生以下の子供を対象とした体育授業/運動遊びにおける活用方法について検討することを目的とした。運動経験のある成人6名を被験者とし,先行研究を参考に,速度や走行方法(ストレート,ジグザグ)を12種類, 20分間行った。GPSによる位置情報, …

    教科開発学論集 (7), 105-114, 2019-03-31

    IR  IR 

  • EVALUATION OF DEFORMATION DEPENDENCY OF PRIMARY NATURAL FREQUENCY DECREASE RATE OF LOW-RISE HOUSES BY MICROTREMOR MEASUREMENT:On Japanese conventional wooden, light-gauge steel, and traditional wooden structure  [in Japanese]

    SAITO Sumito , SUGINO Mina , HAYASHI Yasuhiro

    … In addition, when many houses suffer damage, it is essential to shorten the investigation time in order to respond promptly.<br> Meanwhile, due to technological innovation in recent years, an acceleration sensor that can be applied to microtremor measurement has been developed. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (757), 343-350, 2019-03

    J-STAGE  AIJ 

  • Study on Placement of Acceleration Sensor in Seismic Evaluation of RC Building  [in Japanese]

    陳 辰 , 浅井 竜也 , 勅使川原 正臣

    日本建築学会東海支部研究報告集 Proceedings of Tokai Chapter Architectural Research Meeting (57), 137-140, 2019-02

  • VIBRATION SENSING OF BUILDING 30 SEVERELY DETERIORATED AND DAMAGED IN GUNKANJIMA  [in Japanese]

    HAMAMOTO Takuji , SEKINE Asuka , TOMIOKA Akihiro , DAIGO Takuya

    … <p>Dynamic behaviors of building 30 severely deteriorated and damaged are investigated by processing acceleration data acquired by the vibration sensor network in Gunkanjima. …

    AIJ Journal of Technology and Design (59), 73-78, 2019-02

    J-STAGE  AIJ 

  • Vehicle Vibration Error Compensation on IMU-accelerometer Sensor Using Adaptive Filter and Low-pass Filter Approaches

    Bondan Suwandi , Teruaki Kitasuka , Masayoshi Aritsugi

    … In vehicle dead reckoning or vehicle positioning systems, an inertial measurement unit (IMU) sensor has an important role to provide acceleration and orientation of the vehicle. … The acceleration from the IMU accelerometer is used to calculate the velocity of the vehicle, and then it estimates the vehicle's distance traveled to time. …

    情報処理学会論文誌 60(1), 2019-01-15

    IPSJ 

  • Study on Generation Mechanism and Mathematical Model of Force Signal in Developed Measurement System for Molding Release Resistance

    OOTA Kazuyoshi , NATSU Wataru , OKABE Masayuki

    … In addition, the cause of the measured force signal is discussed based on the experimentally results of simultaneous measurement with the force sensor and the acceleration sensor, and a mathematical model for the force signal is proposed.</p> …

    JOURNAL OF JAPAN SOCIETY FOR DESIGN ENGINEERING 54(7), 433-444, 2019

    J-STAGE 

  • VIBRATION MEASUREMENT OF SRC OFFICE BUILDING USING MEMS ACCELERATION SENSORS  [in Japanese]

    HAMAMOTO Takuji , CHOI Jeongkyu , TOMIOKA Akihiro

    … <p>A temporary sensor network using 6 MEMS acceleration sensors is used to evaluate the vibrational characteristics of SRC office building globally and locally under environmental vibrations. … Ambient vibrations inside and outside the building are measured after setting up the appropriate sensor network. …

    AIJ Journal of Technology and Design 25(60), 731-734, 2019

    J-STAGE 

  • Study of Anticipation in the Badminton Stroke  [in Japanese]

    SHAO Jianxiong , ZHANG Zhen , KANAAKI Itsuki , FUJIMAKI Hiromasa , TANG Haipeng

    … A small nine-axis wireless motion sensor recorded these players' variation in stroke acceleration during competition. …

    Journal of the Society of Biomechanisms 43(2), 134-139, 2019

    J-STAGE 

  • Adaptive Compressed Sensing Using Deep Learning Suitable for Edge Computing  [in Japanese]

    SEKINE Masatoshi , IKADA Satoshi

    <p>実世界の情報をセンシングし,多様なアプリケーションで活用するため,センサデータの効率的な収集が重要となる.そしてアプリケーションで長期間・広範囲にわたる高精度なデータ分析を行うためには,一般に大量のセンサデータが必要となる.しかしながら,エッジ端末ではデータ送信量の増加に伴う無線リソースや電力の浪費が発生する可能性があり,できるだけ元のデータの情報量を落とさず,送信データ量を削減 …

    Proceedings of the Annual Conference of JSAI JSAI2019(0), 4Rin144-4Rin144, 2019

    J-STAGE 

  • Segmental response of the human body to changes in the interrelationship with the environment  [in Japanese]

    TANAKA KAZUYA , ATOMI Tomoaki , TAKANO Wataru , FUJIKI Soichiro , HASEGAWA Katsuya , SHIMIZU Miho , ATOMI Yoriko

    <p>一般に,運動器的疾患による疼痛のため、運動量の確保が困難となる場合がある。従って,身体バランスや歩き方など,運動の質的側面に着目する必要性がある.人体においては、頭部を含めた体幹部の質量比は,身体全体における60%を占めるとされる。そのため、歩行動作や坐位での日常生活動作における効率性や安定性に大きな影響を与える.従って,姿勢・動作制御戦略における頭部・体幹部の分節性に関する評価 …

    Proceedings of the Annual Conference of JSAI JSAI2019(0), 2K5OS16b03-2K5OS16b03, 2019

    J-STAGE 

  • Development of New Value Creation and Evaluation System in Breakdance Using Deep Learning  [in Japanese]

    HIRASAWA Naoyuki , SHIMIZU Daichi

    <p>本研究では,近年広く普及しつつあるブレイクダンスにおいて,動作を自動的に判別してその結果を可視化するシステムを開発した.その際,加速度センサーを組み込んだ靴(スマートフットウェア Orphe)を使用し,自然な環境下での動作を深層学習によって分類し,その結果をダンサーにフィードバックするシステムの開発を目指した.本発表では,そのシステムの紹介を行うとともに,上記のシステムを応用して …

    Proceedings of the Annual Conference of JSAI JSAI2019(0), 2C1J1203-2C1J1203, 2019

    J-STAGE 

  • A study on estimating knee joint angle using motion sensors under conditions of magnetic field variation  [in Japanese]

    SAITO Ayuko , NARA Yuto , MIYAWAKI Kazuto

    … The nine-axis motion sensor comprises a three-axis gyro sensor, a three-axis acceleration sensor, and a three-axis geomagnetic sensor. … It can estimate joint angles during exercise by correcting the drift of the three-axis gyro sensor using information obtained from the other two sensors. …

    Transactions of the JSME (in Japanese) 85(873), 19-00061-19-00061, 2019

    J-STAGE 

  • Estimation of the noise generated by the random impacts on a thin plate  [in Japanese]

    NAGASHIMA Yuya , IKEDA Ikuma , IWATSUKI Nobuyuki

    … In order to probabilistically estimate the noise, the time history of impact force in the case where a force sensor on a rigid pendulum hits a peripherally clamped thin rectangular plate is precisely measured for various impact speeds, angles and positions. … The estimated vibration acceleration of the plate and sound pressure agree very well the measured values. …

    Transactions of the JSME (in Japanese) 85(873), 18-00439-18-00439, 2019

    J-STAGE 

  • Estimation of Lower Extremity Strength in the Elderly Based on Acceleration and Angular Velocity of Walking  [in Japanese]

    HIYAMA Takahiro , SATO Yoshikuni , KOBAYASHI Yoshiyuki , OZAWA Jun

    <p>Prevention of loss of muscle functions is important for the elderly because loss of muscle functions is accompanied by decreases in quantity and quality of exercise, resulting in lowered capa …

    Transactions of Japanese Society for Medical and Biological Engineering 57(1), 27-34, 2019

    J-STAGE 

  • 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

    … <p>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 

  • Intra-rater reliability and criterion-related validity of using an accelerometer to measure the impact force and knee joint sway during single-leg drop landing

    Okamoto Shogo , Saito Ryuta , Sakamoto Masaaki

    … [Purpose] This study aimed to clarify the reliability and validity of the impact force and knee joint sway measurement during single-leg drop landing by using a motion sensor with two built-in accelerometers. … Peak vertical acceleration, time between initial contact and peak vertical acceleration, and knee joint mediolateral sway were measured using the accelerometer during the landing motion. …

    Journal of Physical Therapy Science 31(4), 310-317, 2019

    J-STAGE 

  • Estimation of the ankle power during the terminal stance of gait using an inertial sensor

    Miyashita Toshinori , Kudo Shintarou , Maekawa Yoshihiro

    … [Purpose] The purpose of this study was to develop an assessment tool that reflects the ankle function during the terminal stance of gait using an inertial sensor. … During the terminal stance phase, both the anterior-posterior and vertical accelerations were measured with an inertial sensor mounted on the fibular head. … The Pythagorean theorem was used to calculate the acceleration vector. …

    Journal of Physical Therapy Science 31(4), 354-359, 2019

    J-STAGE 

  • Pedestrian Behavior Analysis using Smart Eyewear

    HASEGAWA Hironobu , KONNO Hayato , KIKUCHI Kohki , TAMURA Tohru

    … <p>Recent developments in the field of sensor technology have been transforming the ways in which the traffic surveys are undertaken. … This study aims to determine the behavior of a person walking to and from their school using data acquired by an acceleration sensor/gyroscope incorporated into the JINS MEME eyeglass-type device. …

    Asian Transport Studies 5(3), 453-469, 2019

    J-STAGE 

  • Fast Force Control without Force Sensor Using Combination of aaKF and RFOB for In-circuit Test with Probing System

    Nagai Sakahisa , Oboe Roberto , Shimono Tomoyuki , Kawamura Atsuo

    … Instead of the conventional method involving the use of a force sensor, this study investigates the application of a micro electronical mechanical systems accelerometer to realize the quick contacting motion. … Subsequently, a negative force is added to the probe and the proposed force control based on acceleration aided Kalman filter and reaction force observer is applied. …

    IEEJ Journal of Industry Applications 8(2), 152-159, 2019

    J-STAGE 

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