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conference on smart biomedical and physiological sensor technology X

作者： Holland, Stephen A. Mahan, Cody A. Kuhn, Michael J. Rowe, Nathan C. Univ Tennessee 1520 Middle Dr Knoxville TN 37916 USA Western Kentucky Univ Bowling Green KY 42101 USA Oak Ridge Natl Lab Oak Ridge TN 37830 USA

ISBN: (纸本)9780819495105

This paper proposes a novel technique for utilizing electrically conductive textiles as a distributed sensor for detecting and localizing liquids (e. g., blood), damage (e. g., rips, cuts, bullet holes) and, potentially, biosignals. The proposed technique is verified through both simulation and experimental measurements. Circuit theory is employed to depict conductive fabric as a bounded, near-infinite grid of resistors. Solutions to the well-known infinite resistance grid problem are used to confirm the accuracy and validity of this modeling approach. Simulations allow for discontinuities to be placed within the resistor matrix to illustrate the effects of bullet holes within the fabric. A real-time experimental system was developed that uses a multiplexed, Wheatstone bridge measurement approach to determine the resistances of a coarse electrode grid across the conductive fabric. Non-uniform resistance values of the grid infer the presence of liquids and rips in the fabric. The resistor-grid model is validated through a comparison of simulated and experimental results. Results suggest accuracy proportional to the electrode spacing in determining the presence and location of disturbances in conductive fabric samples. Future work is focused on refining the experimental system to provide more accuracy in detecting and localizing events (although just the knowledge of a penetration may be adequate for some intended applications) as well as developing a complete prototype that can be deployed for field testing. Potential applications include intelligent clothing, flexible, lightweight sensing systems, and combat wound detection.

关键词： Conductive textile distributed sensor resistance grid penetration flexible combat wound detection

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A information system based on wireless networks for individual care management

A information system based on wireless networks for individu...

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International conference on Wavelet Active Media technology and Information Processing (ICWAMTIP)

作者： Ke-Xin Liao Si-Yu Zhan Guo-Ming Lu Jian-Ming Liao Schocl of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu China

An information system for the individual care management was proposed in this paper, which is an embedded physiological data acquisition system based on ATMEL9260 utilizing the combination of wearable physiological detecting technology, sensor technology, electronic technology and network technology. It realized continues and long-term detection of physiological data, contributing to real-time monitoring of patients and remote consultation.

关键词： biomedical monitoring Monitoring Servers Bluetooth smart phones Temperature sensors Temperature measurement

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Effect of Viewing Distance on 3D Fatigue Caused by Viewing Mobile 3D Content

Effect of Viewing Distance on 3D Fatigue Caused by Viewing M...

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conference on Three-Dimensional Imaging, Visualization, and Display

作者： Mun, Sungchul Lee, Dong-Su Park, Min-Chul Yano, Sumio Univ Sci & Technol Dept Human Comp Interact & Robot Seoul South Korea Korea Inst Sci & Technol Sensor Syst Res Ctr Seoul South Korea Shimane Univ Interdisciplinary Grad Sch Engn Sci Matsue Japan

ISBN: (纸本)9780819495297

With an advent of autostereoscopic display technique and increased needs for smart phones, there has been a significant growth in mobile TV markets. The rapid growth in technical, economical, and social aspects has encouraged 3D TV manufacturers to apply 3D rendering technology to mobile devices so that people have more opportunities to come into contact with many 3D content anytime and anywhere. Even if the mobile 3D technology leads to the current market growth, there is an important thing to consider for consistent development and growth in the display market. To put it briefly, human factors linked to mobile 3D viewing should be taken into consideration before developing mobile 3D technology. Many studies have investigated whether mobile 3D viewing causes undesirable biomedical effects such as motion sickness and visual fatigue, but few have examined main factors adversely affecting human health. Viewing distance is considered one of the main factors to establish optimized viewing environments from a viewer's point of view. Thus, in an effort to determine human-friendly viewing environments, this study aims to investigate the effect of viewing distance on human visual system when exposing to mobile 3D environments. Recording and analyzing brainwaves before and after watching mobile 3D content, we explore how viewing distance affects viewing experience from physiological and psychological perspectives. Results obtained in this study are expected to provide viewing guidelines for viewers, help ensure viewers against undesirable 3D effects, and lead to make gradual progress towards a human-friendly mobile 3D viewing.

关键词： Autostereoscopic 3D visual fatigue cognitive fatigue mobile 3D viewing viewing distance

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Artificial neural network integrated heart rate variability with detection system

Artificial neural network integrated heart rate variability ...

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IEEE International conference on Ubi-Media Computing

作者： Chen-Shen Huang Kong-Sheng Huang Gwo-Jia Jong Electronics Engineering National Kaohsiung University of Applied Sciences Kaohsiung Taiwan

This paper describes an expert system of bio-information, which is combined with the smart devices using wireless sensor network (WSN). The physiological signals can be acquired by some wireless bio-sensor module, such as electrocardiogram (ECG), heart rate (HR), heart rate variability (HRV) and autonomic nervous system (ANS) activity, etc. The smart device transmits the bio-information by wireless network, which provides the real-time expert consultation function requirements for the purpose of bio-information analysis, storage and decision. The smart device is also connected the expert system server by the wireless network The HRV detection parameter value is adopted the criteria and basis for the features of diabetes by using artificial neural network (ANN) algorithm. The remote client can be inquired the bio-information at any time on internet information service (IIS) platform. In addition, the system platform is adequate for comparing the data files. The bio-information and diabetes information can be provided for the alert message timely and actively. The system of this paper is achieved a ubiquitous mobile physiological monitor purpose.

关键词： Artificial neural networks Medical diagnostic imaging biomedical monitoring Heart rate variability Diabetes Training Accuracy

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Editorial Special Issue on sensors for Noninvasive physiological Monitoring

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IEEE sensorS JOURNAL 2012年第3期12卷 413-415页

作者： Lay-Ekuakille, Aime Davis, Cristina Kanoun, Olfa Li, Zhihong Trabacca, Antonio Univ Salento Dept Innovat Engn I-73100 Lecce Italy Univ Calif Davis Dept Mech & Aeronaut Engn Davis CA 95616 USA Tech Univ Chemnitz D-09126 Chemnitz Germany Peking Univ Microelect Inst Microelect Beijing 100871 Peoples R China Sci Inst IRCCS E Medea Unit Neurorehabil I-23842 Bosisio Parini Lecco Italy

The need for noninvasive physiological monitoring has been a goal for some time, but there were many technical limitations in the past that limited development of this new category of tools. Some of these limitations have now been solved and addressed thanks to new discoveries and advances in the fields of measurement technology, material science, micro/nanotechnologies, electronics, signal processing, diagnosis approaches, and image processing capabilities – just to name a few. The aforementioned advances allow us to noninvasively monitor many physiological parameters and to develop new devices and instrumentation to examine the function of many diverse physiological systems, namely, heart, brain, foetus, body motion, kidney, blood, breathing, lungs, skin, eyes – again, naming only a few applications. This Special Issue has shown the interest of international scientific community working on the topic, and we received manuscript submissions on almost every topic of noninvasive sensing, including: technology infrastructure, software issues, sensors and sensing systems. Wireless sensor networks are particularly interesting, and there is an urgent and growing need for this technology in the area of health monitoring and medical telemetry. This has been greatly facilitated by advances in the biological sensor research area. Health monitoring for both routine and critical life-threatening purposes may both be equally of interest, and there are still remaining technical constraints that should be studied in more depth, including: lowering overall power consumption, increased security measures for critical data, adaptability to various network configurations, increased data throughput, and message latency. Seeing the index of works that were selected for final publication, most of subtopics of the call for papers have been covered by very high quality contributions.

关键词： Special issues and sections Noninvasive treatment biomedical monitoring Physiology

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smart biomedical and physiological sensor technology viii

Smart Biomedical and Physiological Sensor Technology VIII

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smart biomedical and physiological sensor technology viii

ISBN: (纸本)9780819485991

The proceedings contain 16 papers. The topics discussed include: optimization of SAM-based multilayer SERS substrates for intracellular analyses: the effect of terminating functional groups;nitrocellulose-based SERS immunosensor for detection of biological molecules;self-referencing luminescent optrodes for non-invasive, real time measurement of extracellular flux;Raman discrimination of bacterial strains using multilayered microcavity substrates;fluorescence intensity measurements with display screen as excitation source;development of a depolarized Raman spectrometer for potential surface-enhanced Raman optical activity (SEROA) measurements;colorimetric phosphorescence measurements with a color camera for oxygen determination;micro-Raman spectroscopy study of ALVAC virus infected chicken embryo cells;Raman spectroscopy of HIV-1 antigen and antibody;and depth and resolution characterization of two-photon photoacoustic spectroscopy for noninvasive subsurface chemical diagnostics.

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Toward constructing a user-environment interface for a smart light-mobile wheelchair

Toward constructing a user-environment interface for a smart...

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IEEE/ASME (AIM) International conference on Advanced Intelligent Mechatronics

作者： Han-Yen Yu Jiann-Jone Chen Chung-Hsien Kuo Department of Electrical Engineering National Taiwan University of Science and Technology Taiwan

Automatic and intelligent health care service becomes important with the growth of aged population. To achieve intelligent mobility for a smart wheelchair, we proposed to construct a user-environment interface that users can interact with the living environment like a normal healthy person. An integrated interactive platform, including touch control panel, together with several cameras, and wireless sensors, is embedded on a wheelchair to achieve friendly interaction. Interaction functions, such as appliance control, semi-automatic vision assistant function, and physiological information monitoring function etc. have been developed. The target of light mobility is achieved and the overall smart wheelchair system comprise: a mobile vehicle, information sensor modules, analysis control modules and an image capture unit which is set towards the headrest direction of the mobile vehicle to capture a user's facial image data. The physiological information sensor module is used for sensing at least one physiological data of the user. The analysis control module outputs a seamless monitoring signal to a caregiver side in response to the image data or the at least one physiological data. These user-environment interaction functions are developed under the design target of human technology that the wheelchair user can interact with the environment like a normal person.

关键词： Cameras Face Graphical user interfaces biomedical monitoring sensors Wheelchairs Monitoring

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Fluorescence intensity measurements with display screen as excitation source

Fluorescence intensity measurements with display screen as e...

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conference on smart biomedical and physiological sensor technology viii

作者： Park, Sanghan Achanta, Satya Gowthami Kim, Chang-Soo Missouri Univ Sci & Technol Dept Elect & Comp Engn Rolla MO 65409 USA Missouri Univ Sci & Technol Dept Chem & Biol Engn Rolla MO 65409 USA Missouri Univ Sci & Technol Dept Biolog Sci Rolla MO 65409 USA

ISBN: (纸本)9780819485991

Several new techniques are emerging to use digital display devices as new type of light source for analytical purpose. We demonstrate the use of a liquid crystal display (LCD) computer screen as excitation light source for determining gaseous oxygen contents over a relatively large area. Meso-scale device platforms are prepared with glass plates incorporating fluidic channels and commercial oxygen sensor patches. Fluorophores are excited by blue wavelength range from the LCD computer screen. The sensor signals exhibit a good linear relationship with respect to the oxygen content. The display devices, with a capability of uniform illumination over a large area for variable wavelengths, have a great potential as light source for high-throughput, multiple-analyte, quantitative chemical analysis.

关键词： optical oxygen sensor liquid crystal display (LCD) color camera charge-coupled device (CCD) colorimetry

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Anti-sleepiness sensor systems for sober mental condition

Anti-sleepiness sensor systems for sober mental condition

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conference on smart biomedical and physiological sensor technology viii

作者： Han, Won Heum Jung, Hyung Sik Lee, Hyo Gun Hana Acad Seoul Seoul 122200 South Korea

ISBN: (纸本)9780819485991

The anti-sleepiness sensor systems have been devised for soldier's sober mental condition. These systems judge whether the soldier is sleepy or not, on one hand by monitoring open or closed eyes, on the other hand by measuring the heart blood beat and rate on the carotid of human's neck. They reasonably adopt one of the following methods such as optical, mechanical, magnetic impedance and piezoelectric sensor and so on. In this paper, the characteristics of those sensors are compared to one another and subsequently the suitable ones are proposed from the viewpoint of measurement and judgment reliability.;as a sensor to directly monitor the soldier's open/closed eyes the IR (Infrared) sensor is recommended, which is equipped on glasses (so called the anti-sleepiness glasses), and as a sensor to measure the heart beat and rate of blood vein, the piezoelectric PMN-PT crystal sensor mounted on a necklace turns out to be the most suitable owing to its high sensitivity (i.e. the anti-sleepiness necklace). These systems and relevant ideas are also applicable to the civilian usage, namely to the student preparing an examination as well as to the car-driver for safety.

关键词： Anti-sleepiness apparatus IR sensor piezoelectric sensor Anti-sleepiness glasses Anti-sleepiness necklace

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Colorimetric Phosphorescence Measurements with a Color Camera for Oxygen Determination

Colorimetric Phosphorescence Measurements with a Color Camer...

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conference on smart biomedical and physiological sensor technology viii

作者： Bhagwat, Prajakta Achanta, Gowthami Satya Henthorn, David Kim, Chang-Soo Missouri Univ Sci & Technol Dept Chem & Biol Engn Rolla MO 65409 USA St Louis Univ Dept Biomed Engn St Louis MO 63103 USA Missouri Univ Sci & Technol Dept Elect & Comp Engn Rolla MO 65409 USA Missouri Univ Sci & Technol Dept Biolog Sci Rolla MO 65409 USA

ISBN: (纸本)9780819485991

We developed a simple oxygen imaging platform with phosphorescent oxygen sensor films to demonstrate a quantitative oxygen determination method utilizing a color CCD camera. Phosphorescence quenching of a luminophore Pt(II) mesotetrakis (pentafluorophenyl) porphyrin complex (PtTFPP) immobilized in poly (dimethylsiloxane) (PDMS) matrix, is the principal detection mechanism. This sensor material was cast to form a film on the bottom surface of a transparent Petri dish. As levels of dissolved oxygen increased, phosphorescence of the complex decreased, allowing for measurement of oxygen levels which developed in the sensor film. A camera with a charge-coupled device (CCD) was used in conjunction with processing software to quantify oxygen levels colorimetrically. Microscopic images were collected using a CCD camera and stored as a set of red/green/blue (RGB) images. Phosphorescence excitation (390 nm peak) is limited to the blue (B) pixels of the CCD chip, and these values were discarded;while retaining the oxygen-responsive phosphorescence emission (645 nm peak) almost identical with the response range of the red (R) pixels. Red pixel intensity analysis effectively extracts color intensity information, which can be in turn directly related to oxygen contents. Color CCD cameras allow simultaneous acquisition of many types of chemical information by combining the merits of digital imaging with the attributes of spectroscopic measurement. Therefore, use of color CCD cameras is considered as an inexpensive alternative to time-resolved imaging for relatively short-term monitoring.

关键词： optical oxygen sensor color camera charge-coupled device (CCD) colorimetric analysis

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