Search Results 1-20 of 439

  • Development of a Sensor-embedded Device for Infant Health Monitoring:-Prototype Development and an Observation Experiment with Adults-  [in Japanese]

    FUKUI Rui , ISHIGURO Mizuki , SUZUKI Ayumi , YAMADA Yudai , WARISAWA Shin'ichi

    … Especially, small-sized and lightweight sensors are developed: a tensile force sensor and an omnidirectional bending sensor. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2019(0), 2P1-K03, 2019


  • A User Evaluation System Using Sensors of Smartphones

    Yamaguchi Ryo , Zhang Jue , Chandrasiri Naiwarla P.

    … To that end, we wondered if it might be possible to use the sensors in people's smartphones as a ubiquitous and always close-at-hand device that is capable of making quantitative measurements. … In this research, we focus on the sensors with which smartphones are equipped, proposing, and investigating the effectiveness of, the measurement and numerical analysis of the force with which a device is shaken as a more direct means of conducting emotional assessment and that succeeded. …

    International Symposium on Affective Science and Engineering ISASE2019(0), 1-4, 2019


  • A Hybrid Model Using Hidden Markov Chain and Logic Model for Daily Living Activity Recognition

    Lago Paula , Inoue Sozo

    … We use binary sensors and proximity sensor measurements for the recognition. … The latter approach takes advantage of the descriptions provided for each of the activities which are expressed in logical statements based on the sensors states. …

    Proceedings 2(19), 1266-1-1266-7, 2018-12-04


  • Smart Devices and Bio-Political Governmentality  [in Japanese]

    MORI Masato

    … City-scale Internet of Things infrastructures that the smart devices and technologies rely on, and their associated networks of sensors, meters, transponders, actuators and algorithms, are used to measure, monitor and regulate the mobility of people in city space and the polymorphic temporal rhythms of urban life. … Through this paper I argue that the smart technologies and devices which are ubiquitous in Japan are pivotal to the governmentality of the society …

    Tourism Studies Review 6(1), 53-67, 2018


  • The Algorithm and the Fairness:Consideration from State v. Loomis  [in Japanese]

    YAMAMOTO Tatsuhiko , OZAKI Aimi

    … It is characterized by much more ubiquitous and mobile internet, by smaller and more powerful sensors that have become cheaper, and by artificial intelligence and machine learning" (Schwab 2017, 3). …

    Journal of Science and Technology Studies 16(0), 96-107, 2018


  • Velocity Measurement using MEMS Ultrasonic Sensor for Non-invasive Blood Pressure Measurement  [in Japanese]

    Takei Yusuke , Matsui Ryo , Minh-Dung Nguyen , Takahata Tomoyuki , Matsumoto Kiyoshi , Shimoyama Isao

    <p>We measured flow speed of a moving object in a water with Doppler effect using a MEMS ultrasonic receiver. This measurement is aimed for non-invasive blood pressure measurement. We proposed a …

    IEEJ Transactions on Sensors and Micromachines 138(2), 54-58, 2018


  • A Living Activity Recognition System Based on Power Consumption of Appliances and Energy Harvesting PIR and Door Sensors  [in Japanese]

    柏本 幸俊 , 秦 恭史 , 中川 愛梨 , 諏訪 博彦 , 藤本 まなと , 荒川 豊 , 繁住 健哉 , 小宮 邦裕 , 小西 健太 , 安本 慶一

    … Progress of ubiquitous computing technology has strong anticipation to realize efficient energy-saving appliance control and elderly monitoring. … (2) high deployment and maintenance costs due to many sensors used; … To solove the problems (1)-(4), our method only utilizes energy harvesting PIR and door sensors and power meter. …

    情報処理学会論文誌 58(2), 409-418, 2017-02-15


  • Development of Flexible Piezoelectric Strain Sensor Array  [in Japanese]

    Yamashita Takahiro , Takamatsu Seiichi , Okada Hironao , Itoh Toshihiro , Kobayashi Takeshi

    … We successfully transfer-printed continuously very fragile microelectromechanical systems (MEMS)-based 5-mm-long, 1-mm-wide, 5-µm-thick high-aspect-ratio ultra-thin PZT(1.9µm)/Si(3µm) strain sensors onto a polyimide based flexible printed-circuit (FPC) substrate with etched Cu wiring. … Then, we connected the sensors to the Cu wiring by printing insulating and conductive pastes using a screen printer. …

    IEEJ Transactions on Sensors and Micromachines 137(12), 438-443, 2017


  • Wireless Power Supply for All-in-one LTCC Packaged Sensor Nodes Applicable to Infrastructure Monitoring

    Lu Jian , Zhang Lan , Arakawa Masao , Harada Takeshi

    <p>Online monitoring of infrastructures attracts great interests in recent years because of the increasing of nature disasters and the aging of bridges, high-ways, buildings, etc. In road infras …

    IEEJ Transactions on Sensors and Micromachines 137(9), 267-271, 2017


  • Constructing Delivery Tree for Low-cost Management Sensor Networks

    Masato Yokotani , Shouhei Kojima , Takuya Yoshihiro

    Proceedings of The Ninth International Conference on Mobile Computing and Ubiquitous Networking 2016(15), 1-2, 2016-09-27


  • Posture Detection Using Infrared Array Sensors

    Shohei Waga , Naohiro Takahashi , Shingo Otsuka

    Proceedings of The Ninth International Conference on Mobile Computing and Ubiquitous Networking 2016(14), 1-2, 2016-09-27


  • On-Demand Barrier-Free Information Provision System for Providing Sensor Information from General-Purpose Wheelchair Users

    Kenichi Arai , Minoru Sonoda , Takuya Tateishi , Syunsuke Ikkanzaka , Toru Kobayashi

    Proceedings of The Ninth International Conference on Mobile Computing and Ubiquitous Networking 2016(6), 1-2, 2016-09-27


  • Redox-sensitive transient receptor potential channels in oxygen sensing and adaptation

    Mori Yasuo , Takahashi Nobuaki , Polat Onur Kerem , Kurokawa Tatsuki , Takeda Norihiko , Inoue Masahiro

    … A group of cation-permeable channels that are formed by transient receptor potential (TRP) proteins have been characterized as exquisite sensors of redox reactive species and as efficient actuators of electric/ionic signals in vivo. … In this review, we first discuss how redox-sensitive TRP channels such as TRPA1 have recently emerged as sensors of the relatively inert oxidant O2. … Also, ubiquitous expression of TRPA1 and TRPM7 together with their physiological relevance in the body is examined. …

    Pflugers Archiv European Journal of Physiology (468), 85-97, 2016-01-01


  • Large-scale Experiment of Power Consumption Monitoring Using Wireless Sensor Nodes  [in Japanese]

    SUZUKI Akio , FUJIMOTO Jun , ITOH Toshihiro , MAEDA Ryutaro

    … The experiment started using 15896 button battery type wireless current sensors. … The sensors were installed in stores' electrical distribution boards and current data were collected every ten second. … We verified that sensors worked well in real store environments: average battery life was estimated over 550 days, average data receiving ratio was over 0.95. …

    Transactions of the Society of Instrument and Control Engineers 52(12), 698-706, 2016


  • ITO-Based MEMS Sensor Electrode for Dynamic Cow-Rumen pH Sensing

    Zhang Lan , Lu Jian , Nogami Hirofumi , Okada Hironao , Itoh Toshihiro

    <p>A solid-type pH sensor for dairy cow-rumen measurement is developed. The pH sensor combines a metal-oxide-semiconductor field-effect transistor (MOSFET) with a separate sensing electrode made …

    IEEJ Transactions on Sensors and Micromachines 136(11), 482-487, 2016


  • Gettering Technology for CMOS Image Sensors Using a Cluster Ion Implantation  [in Japanese]

    KURITA Kazunari , KADONO Takeshi , OKUYAMA Ryousuke , HIROSE Ryo , MASADA Ayumi , OKUDA Hidehiko , Yoshihiko KOGA

    … In recent years, CMOS image sensor has been widely used for ubiquitous devices such as smart-phone and tablets. … However, CMOS image sensors performance are dramatically influenced by process induced defects such as metallic impurities related deep level defects in the space-charge region. …

    Hyomen Kagaku 37(3), 104-109, 2016


  • Development of Framework Enabling Proactive Service Delivery according to User's Context and Application for Business Systems  [in Japanese]

    烏谷 彰 , 岩田 敏 , 寺薗 浩平 , 森 信一郎

    … Recently a user can use services anytime and anywhere with a smart device through the spread of ubiquitous computing environment. … Although the proactive-type that utilizes sensors on a smart device has received a lot of attention, it is difficult to define a user's context and delivered services under the context. …

    情報処理学会論文誌コンシューマ・デバイス&システム(CDS) 5(4), 70-78, 2015-10-03


  • Mobile Activity Recognition for a Whole Day: Recognizing Real Nursing Activity with a Big Dataset

    井上 創造 , 上田 修功 , 野原 康伸 , 中島 直樹

    … In this paper, we provide a real nursing data set for mobile activity recognition that can be used for supervised machine learning, and big data combined the patient medical records and sensors attempted for 2 years, and also propose a method for recognizing activities for a whole day utilizing prior knowledge about the activity segments in a day. …

    Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing2015, 1269-1280, 2015-09-07


  • Development and Laboratory Experiment of Radio Equipment for White Space Wireless Utility Network  [in Japanese]

    MA Jing , HARADA Hiroshi , KOJIMA Fumihide

    … A Wi-SUN is a ubiquitous wireless network that monitors, commands, and controls for service providers at one end, and measures, collects, and analyzes data for consumers at the other. … However, congestion and interference issues degrade the network system efficiency since several thousands of meters or sensors potentially exit in the network. …

    IEICE technical report. SRW, Short range wireless communications 114(492), 37-42, 2015-03-04

  • Recognizing the Use of Portable Electrical Appliances Using Battery-shaped Sensor Node  [in Japanese]

    前川 卓也 , 岸野 泰恵 , 柳沢 豊 , 櫻井 保志

    … Therefore, many ubiquitous and wearable sensing studies have attempted to recognize the use of electrical devices by attaching sensor nodes to the devices directly or by attaching multiple sensors to a user. …

    IPSJ Journal 56(1), 229-238, 2015-01-15


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