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检索条件"任意字段=Conference on Smart Biomedical and Physiological Sensor Technology XI"

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The Human-Environment Interface Design with a Vision Assistance Module for a smart Wheelchair

The Human-Environment Interface Design with a Vision Assista...

引用

International conference on Advanced Robotics and Intelligent Systems (ARIS)

作者： Yu, Han-Yen Chen, Jiann-Jone Kuo, Chung-Hsien Natl Taiwan Univ Sci & Technol Taipei 10673 Taiwan

ISBN: (纸本)9781479958467

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 friend 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 human interaction. Interaction functions, such as appliance control, semi-automatic vision assistant function, and physiological information monitoring function etc. have been developed to achieve the target. The goal of light mobility can be reached and the overall smart wheelchair system comprises: 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 human facial image data. The physiological sensor module is used for sensing user physiological data. The analysis control module seamlessly transmits monitoring signals to a caregiver side in response to the image data or 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： biomedical monitoring Cameras Face Image color analysis Monitoring sensors Visualization biomedical monitoring image colour analysis Cameras Wheelchair sensors Face Face image data Visualization design target Health Services Wheelchair users

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Integration of biochemical sensors into wearable biomaterial platforms 13

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conference on smart biomedical and physiological sensor technology xiII

作者： Jandhyala, Sidhartha Walper, Scott A. Cargill, Allison A. Ozual, Abigail Daniele, Michael A. North Carolina State Univ Joint Dept Biomed Engn Raleigh NC 27695 USA Univ N Carolina Raleigh NC 27695 USA US Naval Res Lab Ctr Bio Mol Sci & Engn Washington DC 20375 USA US Naval Res Lab Naval Res Enterprise Internship Program Washington DC 20375 USA US Naval Res Lab Naval Res Lab HBCU MI Internship Program Washington DC 20375 USA North Carolina State Univ Dept Elect & Comp Engn Raleigh NC 27695 USA

ISBN: (纸本)9781510601048

With rapidly inflating healthcare costs, a limited supply of physicians and an alarming surge in lifestyle diseases, radical changes must be made to improve preventative medicine and ensure a sustainable healthcare system. A compelling solution is to equip the population with wearable health monitors to continuously record representative and actionable physiological data. Herein, we present a preliminary design and evaluation of a biochemical sensor node enabled by a substrate comprised of a nanocellulose thin-film that conforms to the skin and carries a printed sensor element. The nanocellulose layer ensures conformal and biocompatible contact with the skin, while a printed layer provides a high surface-area electrode. While the recognition/transduction element can be exchanged for many different sensing motifs, we utilize the general structure of an electrochemical glucose sensor.

关键词： Biosensors Wearable Electronics Biomaterials Nanocellulose Glucose sensor Glucose Oxidase Amperometric Electrochemical

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Growth of bio sensor materials by physical vapor transport method 15

Growth of bio sensor materials by physical vapor transport m...

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conference on smart biomedical and physiological sensor technology XV

作者： Singh, N. B. Su, Ching Hua Arnold, Bradley Cullum, Brian M. Choa, Fow-Sen Carpenter, Tara Sachs, David Mandal, K. D. Univ Maryland Baltimore Cty Baltimore MD 21250 USA NASA Marshall Space Flight Ctr EM31 Huntsville AL 35812 USA Banaras Hindu Univ Indian Inst Technol Varanasi Uttar Pradesh India

ISBN: (数字)9781510618367

ISBN: (纸本)9781510618367

Recently there is a big thrust on bio-inspired sensors and there has been a large rise in the investment and expectations for nanotechnology to meet these goals. For in situ sensor development materials deposition on substrate is essential part of device development. Physical vapor deposition (PVD), chemical vapor deposition (CVD) and molecular organic vapor deposition methods have developed for growth of semiconductor bulk and thin film growth with some modifications have been used for these materials. Oxides and other elements of VI group such as sulfides and selenides are key components in skins of many species. Growth of ordered structures containing these elements have been achieved by using PVD method. This paper describes effect of growth parameters during PVD growth on the quality of materials. Growth kinetics and mechanism will be discussed for the vertical and horizontal growth reactors. Since most of the efficient materials systems are multinary and in many cases non-congruent, PVD provides pathway to grow materials below melting temperature.

关键词： Physical vapor transport oxides crystal bioinspired sensor growth

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Flux growth of optical sensor zinc selenide crystals 21

Flux growth of optical sensor zinc selenide crystals

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conference on smart biomedical and physiological sensor technology Xxi

作者： Brandt, Meghan Schmidt, Nicholas Tauraso, Aria Sood, Rachit Su, Ching Hua Arnold, Bradley Choa, Fow-Sen Cullum, Brian Singh, N. B. NASA Marshall Space Flight Ctr EM3 Huntsville AL 35812 USA Univ Maryland Baltimore Cty 1000 Hilltop Circle Baltimore MD 21250 USA

ISBN: (纸本)9781510674370;9781510674363

Binary and ternary selenide crystals have been proven as multifunctional for optical sensors and laser applications. The aim of this study was to evaluate reactive flux growth process of the doped zinc selenide crystals and compared with bulk physical vapor transport (PVT) grown large single crystals. The experimental process of synthesis involved PVP (Polyvinyl Pyrrolidone) flux dissolved in DI water which was heated at 65 degrees C, stirred until all PVP dissolved. We added Se powder dissolved in ethanol and heated again for few minutes. We added ZnCl2 solution in ethanol/Se mixture and heated at well below 100 degrees C. Water and ethanol solvent was separated and placed at 200C. The residue material was doped with transition metal. This material was characterized for the luminescence and compared with the results of bulk crystals grown by PVD process.

关键词： ZnSe Flux growth Crystals Reactive solution Spray spin

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Characterization of Large-Area Pressure-Sensitive Robot Skin 14

Characterization of Large-Area Pressure-Sensitive Robot Skin

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conference on smart biomedical and physiological sensor technology xiV

作者： Saadatzi, Mohammad Nasser Baptist, Joshua R. Wijayasinghe, Indika B. Popa, Dan O. Univ Louisville Dep Elect & Comp Engn Next Generat Syst Grp 2301 S 3rd St Louisville KY 40292 USA

ISBN: (纸本)9781510609334;9781510609341

sensorized robot skin has considerable promise to enhance robots' tactile perception of surrounding environments. For physical human-robot interaction ( pHRI) or autonomous manipulation, a high spatial sensor density is required, typically driven by the skin location on the robot. In this study, two flexible sensor arrays with different densities (i.e., 4x4 and 11x11 skin arrays) are printed and packaged onto Kapton sheets and silicone encapsulants. To address scalability, sensitivity, and calibration challenges, a novel electronic module, free of the traditional signal conditioning circuitry was created. The electronic design relies on a software-based calibration scheme using high-resolution analog-to-digital converters with internal programmable gain amplifiers. In this paper, we show the efficacy of the proposed method with the 4x4 skin array using controlled pressure tests, and then perform procedures to evaluate each sensor's characteristics such as dynamic force-to-strain property, repeatability, and signal-to-noise-ratio. In order to handle larger sensor surfaces, an automated force-controlled test cycle was carried out. Results demonstrate that our approach leads to reliable and efficient methods for extracting tactile models for use in future interaction with collaborative robots.

关键词： Robot skin characterization sensor array strain gauge pHRI

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Effect of platinum nanoparticle deposition parameters on hydrogen peroxide transduction for applications in wearable electrochemical glucose biosensors 13

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conference on smart biomedical and physiological sensor technology xiII

作者： Cargill, Allison A. Neil, Kathrine M. Hondred, John A. McLamore, Eric. S. Claussen, Jonathan C. Iowa State Univ Dept Mech Engn Ames IA 50011 USA Univ Florida Dept Agr & Biol Engn Gainesville FL 32611 USA

ISBN: (纸本)9781510601048

Enhanced interest in wearable biosensor technology over the past decade is directly related to the increasing prevalence of diabetes and the associated requirement of daily blood glucose monitoring. In this work we investigate the platinum-carbon transduction element used in traditional first-generation glucose biosensors which rely on the concentration of hydrogen peroxide produced by the glucose-glucose oxidase binding scheme. We electrodeposit platinum nanoparticles on a commercially-available screen printed carbon electrode by stepping an applied current between 0 and 7.12 mA/cm(2) for a varying number of cycles. Next, we examine the trends in deposition and the effect that the number of deposition cycles has on the sensitivity of electrochemical glucose sensing. Results from this work indicate that applying platinum nanoparticles to screen printed carbon via electrodeposition from a metal salt solution improves overall biosensor sensitivity. This work also pinpoints the amount of platinum (i.e., number of deposition cycles) that maximizes biosensor sensitivity in an effort to minimize the use of the precious metals, viz., platinum, in electrode fabrication. In summary, this work quantifies the relationship between platinum electrodeposition and sensor performance, which is crucial in designing and producing cost-effective sensors.

关键词： biosensor glucose sensor electrodeposition platinum nanoparticles hydrogen peroxide screen printed electrodes

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MagNeura: DNN Factored Magnetic sensor Based Finger Tracking Wearable Design

MagNeura: DNN Factored Magnetic Sensor Based Finger Tracking...

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2024 biomedical Circuits and Systems conference

作者： Jonna, Prashanth Nitheezkant, R. Rao, Madhav IIIT Bangalore Surg & Assist Robot Lab Bangalore Karnataka India

ISBN: (纸本)9798350354966;9798350354959

Finger pose tracking is an important task in various healthcare domains, including rehabilitation. Existing solutions based on computer vision, strain gauges, Inertial Motion Units, thermal cameras and surface electromyography pose a variety of limitations. This paper proposes MagNeura, a compact system that estimates finger angles based on tri-axial magnetometers. Unlike conventional mathematical model-based mapping between sensor data and finger angles, the sensor data is fed to a deep neural network (DNN) to estimate the angles. The system is easily calibrated to different users and environments. Moreover, the setup remains independent of the individual's physiological signals, which otherwise limits the scalability and generalizability of the usage. The proposed wearable system is characterized for precise finger movement, and a deeper analysis of the system's accuracy over the ground-truth results is presented. The proposed wearable system enables tracking of individual and multiple fingers to estimate various hand poses which otherwise remains a challenge. Real-time tracking of dynamically changing finger gestures has various use cases including physical rehabilitation, human-computer interaction, gaming, and sign-language translation. The precise finger tracking established from AI applied on magnetic sensing is a step towards developing a reliable and efficient body motion tracking system.

关键词： Finger Tracking Human-Computer Interaction Neural Networks

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A Framework of Blockchain-Based Security for WBANs 3

A Framework of Blockchain-Based Security for WBANs

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3rd International conference on smart BlockChain (IEEE smartBlock)

作者： Deng, Han Meng, xiangwei Guo, Jun xi, Erhui Zhao, Hui Guangzhou Coll Technol & Business Big Data Dev & Res Ctr Guangzhou Peoples R China Hunan Univ Sci & Technol Sch Comp Sci & Engn Xiangtan Peoples R China Quanzhou Univ Informat Engn Sch Software Engn Quanzhou Peoples R China Guangzhou Coll Technol & Business Dept Comp Sci & Engn Guangzhou Peoples R China Henan Univ Educ Informat Technol Lab Kaifeng Peoples R China

ISBN: (纸本)9781665440738

Purposed to collect and store human physiological data, WBANs as a telemedicine system play a significant role in sensor networks. The complex network environment presents a formidable challenge to the stability of the system and the security of the database. The traditional centralized architecture is to store the registration data of the sensor node and the patient's physiological data in the hub node. When the hub node is subjected to Denial of Service attacks (DoS) and Distributed Denial of Service attacks (DDoS), there will be a single point of failure, so that the sensor node cannot establish a communication connection with the hub node. In this paper, a cloud server layer architecture based on blockchain technology is proposed for WBNAs to ensure system stability and patient data security. Meanwhile, Ciphertext-Policy Attribute-Based Encryption (CP-ABE) scheme is used to ensure patient physiological data safety.

关键词： WBANs Blockchain Decentralized systems CPABE Privacy protection Access control

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Preliminary Study on Multi-sensors Wearable smart Shoes using the Internet of Things Techniques 7

Preliminary Study on Multi-sensors Wearable Smart Shoes usin...

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IEEE 7th Global conference on Consumer Electronics (GCCE)

作者： Lee, Chao-Hsien Gen, Mao-Qun Natl Taipei Univ Technol Dept Elect Engn Taipei Taiwan

ISBN: (纸本)9781538663097

Daily exercise leads to better health. Hence, a lot of people keep running or walking habits. Thus, how to become successful runners without injuries is one urgent research issue. This paper shows one wearable smart shoes equipped with several types of sensors for long-term exercise monitoring. Not only the gait status but also the ground surface conditions, e. g., wet or rugged, and physiological signals, e. g., EMG, can be collected and analyzed simultaneously by the proposed smart shoes. Based on our experimental results, the proposed multi-sensor wearable smart shoes can have more than 80% accuracy in average.

关键词： Footwear Intelligent sensors Electromyography Foot biomedical monitoring Muscles

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Hyperspectral Imaging to Discern Malignant and Benign Canine Mammary Tumors

Hyperspectral Imaging to Discern Malignant and Benign Canine...

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conference on smart biomedical and physiological sensor technology X

作者： Sahu, Amrita McGoverin, Cushla Pleshko, Nancy Sorenmo, Karin Won, Chang-Hee Temple Univ Control Sensor Network & Percept CSNAP Lab Dept Elect & Comp Engn Philadelphia PA 19122 USA Temple Univ Dept Bioengn Tissue Imaging & Spectroscopy Lab Philadelphia PA 19122 USA Univ Penn Sch Vet Med Oncol Sect Philadelphia PA 19104 USA

ISBN: (纸本)9780819495105

Hyperspectral imaging is an emerging technology in the field of biomedical engineering which may be used as a non-invasive modality to characterize tumors. In this paper, a hyperspectral imaging system was used to characterize canine mammary tumors of unknown histopathology (pre-surgery) and correlate these results with the post-surgical histopathology results. The system consisted of a charge coupled device (CCD) camera, a liquid crystal tunable filter in the near infrared range (650-1100 nm) and a controller. Spectral signatures of malignant and benign canine mammary tumors were extracted and analyzed. The reflectance intensities of malignant tumor spectra were generally lower than benign tumor spectra over the entire wavelength range. Previous studies have shown that cancerous tissues have a higher hemoglobin and water content, and lower lipid concentration with respect to benign tissues. The decreased reflectance intensity observed for malignant tumors is likely due to the increased microvasculature and therefore higher blood content of malignant tissue relative to benign tissue. Peaks at 700, 840, 900 and 970 nm were observed in the second derivative absorption spectra, these peaks were attributed to deoxy-hemoglobin, oxy-hemoglobin, lipid and water respectively. A 'Tissue Optical Index' was developed that enhances contrast between malignant and benign canine tumors. This index is based on the ratio of the reflectance intensity values corresponding to the wavelengths associated with the four chromophores. Preliminary results from 22 canine mammary tumors showed that the sensitivity and specificity of the proposed method is 85.7% and 94.6% respectively. These results show promise in the non-invasive optical diagnosis of canine mammary cancer.

关键词： Hyperspectral imaging canine mammary tumor near-infrared spectroscopy tumor characterization

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