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2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)最新文献

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Localization of a functional capsule for wireless neuro-endoscopy 无线神经内窥镜功能胶囊的定位
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172735
Dirk Manteuffel, M. Grimm
{"title":"Localization of a functional capsule for wireless neuro-endoscopy","authors":"Dirk Manteuffel, M. Grimm","doi":"10.1109/BIOWIRELESS.2012.6172735","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172735","url":null,"abstract":"In this paper we present a numerical evaluation of a RF localization system to determine the position of a functional radio capsule released in the ventricular system of the brain. The concept is based on an AoA estimation using short UWB pulses. Although first results are quite stimulating, the initial localization accuracy is too poor for practical applications. It has been shown that this is mainly cause by NLoS waves reaching certain reference stations faster than waves travelling along the desired LoS path due to significant higher phase velocities in the cranial bone or the sinus cavities compared to the different types of brain matter.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128502240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
SAR assessment and analysis of cumulative body exposure to multi transmitters from a mobile phone 人体累积暴露于手机多个发射器的SAR评估与分析
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172726
Z. Mahfouz, A. Gati, D. Lautru, J. Wiart, V. Hanna
{"title":"SAR assessment and analysis of cumulative body exposure to multi transmitters from a mobile phone","authors":"Z. Mahfouz, A. Gati, D. Lautru, J. Wiart, V. Hanna","doi":"10.1109/BIOWIRELESS.2012.6172726","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172726","url":null,"abstract":"This paper presents results for the Specific Absorption Rate (SAR) when using a mobile phone equipped with a multiple antenna system. The SAR is evaluated using the Finite Difference Time Domain (FDTD) method for different configurations taking into account all possible simultaneous transmission from a mobile phone. The considered signals are GSM900, GSM1800, UMTS2100 and WiFi2400. The results show that the calculated local SAR for the different configurations never exceeds the limit of 2 W/Kg recommended by ICNIRP. It was demonstrated also that the maximum of the sum of the SAR evaluated from two different transmitters is always less than the sum of the maximum evaluated ones from each transmitter separately.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128482296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
RF based feedback system for cardiopulmonary resuscitation 基于射频的心肺复苏反馈系统
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172738
M. Hofmann, J. Edelmann, A. Bolz, R. Weigel, G. Fischer, D. Kissinger
{"title":"RF based feedback system for cardiopulmonary resuscitation","authors":"M. Hofmann, J. Edelmann, A. Bolz, R. Weigel, G. Fischer, D. Kissinger","doi":"10.1109/BIOWIRELESS.2012.6172738","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172738","url":null,"abstract":"This paper presents a novel approach to cardiopulmonary resuscitation (CPR) feedback. The underlying concept is based on an RF transmission through the thorax. With the help of CT images, the link budget is estimated and verified via a full 3D EM simulation of a human body model. Different antennas and operating frequencies between 868 MHz and 2.4 GHz are investigated, in terms of their ability to assist CPR. The fabricated antennas are matched to the thorax wave impedance and were evaluated in animal and human experiments. It is shown that the thorax compression during a CPR can be monitored with the proposed RF based approach.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134542417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Low-cost electrodes for acutely implanted neural recording and stimulation systems 用于急性植入神经记录和刺激系统的低成本电极
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172733
A. Bozkurt
{"title":"Low-cost electrodes for acutely implanted neural recording and stimulation systems","authors":"A. Bozkurt","doi":"10.1109/BIOWIRELESS.2012.6172733","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172733","url":null,"abstract":"Implantable microelectrodes for functional electrical stimulation are often designed to be used in chronic long term applications and subjected to strict endurance and resolution requirements. Their manufacturing requires costly thin-film processing technologies derived from conventional semiconductor fabrication techniques. On the other hand, these constraints can be relaxed in certain applications to allow the use of relatively lower cost flexible printed circuit board techniques optimized for high-volume markets. In this paper, we address some of the related shortcomings with this manufacturing technology, and suggest modifications in the fabrication process.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124461607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Advances in bioelectromagnetics for implantable systems 植入式系统生物电磁学研究进展
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172741
C. Cela, A. K. RamRakhyani, S. Srinivas, G. Hayes, M. Dickey, G. Lazzi
{"title":"Advances in bioelectromagnetics for implantable systems","authors":"C. Cela, A. K. RamRakhyani, S. Srinivas, G. Hayes, M. Dickey, G. Lazzi","doi":"10.1109/BIOWIRELESS.2012.6172741","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172741","url":null,"abstract":"Implantable medical devices are used to supplement, monitor, or replace physiological function for a variety of medical conditions. In this article we highlight a set of topics that we believe could eventually be instrumental in bringing the next generation of implantable devices to existence. These include multi-scale numerical modeling and simulation, magnetic neural interfaces, high-performance telemetry, and the use and application of flexible antennas.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"8 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130710499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An empirical investigation of the capacitive Body Coupled Communications channel for Body Area Networks 体域网络容性体耦合通信信道的实证研究
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172747
S. Attard, S. Zammit
{"title":"An empirical investigation of the capacitive Body Coupled Communications channel for Body Area Networks","authors":"S. Attard, S. Zammit","doi":"10.1109/BIOWIRELESS.2012.6172747","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172747","url":null,"abstract":"Body Coupled Communication (BCC) systems use the human body as the medium through which a signal is transmitted to connect devices placed in, on or in close proximity to the human body. To enable good BCC system design, the BCC channel has to be very well understood. In this paper the BCC channel was empirically investigated by carrying out several experiments. First the BCC channel was characterized for static body conditions. Then, the off body radiation was measured to try and understand the propagation of the signal energy away from the body. It was found that the BCC channel is frequency selective, but offers a low propagation loss in certain frequency bands. The frequency band with the most favorable characteristics for wireless systems was found to be between 280MHz and 500MHz. Finally, the off-body radiation experiments showed that the signal power decreased rapidly when the receiving coupler was placed away from the body.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127814660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Implantable wireless microcoils for 7Tesla Magnetic Resonance Imaging of the rat brain: Optimization of the PDMS packaging 用于大鼠脑磁共振成像的可植入无线微线圈:PDMS封装的优化
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172728
M. Couty, A. Rubin, M. Woytasik, J. Ginefri, L. Darrasse, F. Boumezbeur, F. Lethimonnier, M. Tatoulian, E. Dufour-Gergam
{"title":"Implantable wireless microcoils for 7Tesla Magnetic Resonance Imaging of the rat brain: Optimization of the PDMS packaging","authors":"M. Couty, A. Rubin, M. Woytasik, J. Ginefri, L. Darrasse, F. Boumezbeur, F. Lethimonnier, M. Tatoulian, E. Dufour-Gergam","doi":"10.1109/BIOWIRELESS.2012.6172728","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172728","url":null,"abstract":"In this paper, we present the development of implantable microcoils specifically dedicated to 7Tesla MRI of the rat brain for the diagnosis and monitoring of tumors and neurodegenerative diseases. These coils are flexible and wireless, with an easy batch fabrication. We also present for the first time a study of the packaging effects on the characteristics of the coil, f0 and Q factor. The optimization of the packaging with PDMS allows us to realize the first in vivo image of the rat brain using an implanted flexible microantenna.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115770589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
VitalTrack: A Doppler radar sensor platform for monitoring activity levels VitalTrack:用于监测活动水平的多普勒雷达传感器平台
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172744
G. Reyes, Di Wang, R. Nair, Changzhi Li, Xiaolin Li, Jenshan Lin
{"title":"VitalTrack: A Doppler radar sensor platform for monitoring activity levels","authors":"G. Reyes, Di Wang, R. Nair, Changzhi Li, Xiaolin Li, Jenshan Lin","doi":"10.1109/BIOWIRELESS.2012.6172744","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172744","url":null,"abstract":"An activity-level monitoring platform is developed using a non-contact Doppler radar sensor. The need for assistive living and smart home technologies will arise due to the increase in the aging population, and non-contact sensing technologies have the potential to revolutionize home healthcare delivery. Based on developments at University of Florida's Radio Frequency Circuits and Systems Research Laboratory, relevant information on how active people are during the day based on their physiological movements is obtained using algorithms and a non-contact Doppler radar sensor. A continuous 5.8 GHz radar wave emitted by the sensor is phase-modulated by the chest wall movement observed. The range of the radar sensor is on the order of 1.8 to 2 meters. Computer vision algorithms are used to detect and track a person as their movements are captured. Experiments were performed to monitor a person's activity levels over periods of time and the analysis of measured results is presented.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115369683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Miniaturized antenna and integrated rectifier design for remote powering of wireless sensor systems 用于无线传感器系统远程供电的小型化天线和集成整流器设计
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172746
O. Kazanc, F. Mazzilli, N. Joehl, F. Maloberti, C. Dehollain
{"title":"Miniaturized antenna and integrated rectifier design for remote powering of wireless sensor systems","authors":"O. Kazanc, F. Mazzilli, N. Joehl, F. Maloberti, C. Dehollain","doi":"10.1109/BIOWIRELESS.2012.6172746","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172746","url":null,"abstract":"The design methodology of a miniaturized tag antenna and an integrated rectifier for remote powering of wireless sensor systems operating at 2.45 GHz ISM band is presented. To maximize the power transfer the antenna input impedance is matched to the conjugate of the rectifier impedance. The overall efficiency of the rectenna is evaluated through the combination of the simulations and experimental results with the antenna-rectifier chain (rectenna) and the radiating source antenna (transmitter) respectively. A 16 × 8 mm2 tag antenna placed 12 cm apart from a transmitter having 2W of PEIRP provides maximum output power of 560 μW. The efficiency of rectenna is analyzed considering CMOS process variations affecting the rectifier.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132662144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Antenna evaluation of a non-contact vital signs sensor for continuous heart and respiration rate monitoring 用于连续心脏和呼吸速率监测的非接触式生命体征传感器的天线评估
2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2012-04-03 DOI: 10.1109/BIOWIRELESS.2012.6172730
Vighneshrudra Das, A. Boothby, Royce Hwang, T. Nguyen, Jerry Lopez
{"title":"Antenna evaluation of a non-contact vital signs sensor for continuous heart and respiration rate monitoring","authors":"Vighneshrudra Das, A. Boothby, Royce Hwang, T. Nguyen, Jerry Lopez","doi":"10.1109/BIOWIRELESS.2012.6172730","DOIUrl":"https://doi.org/10.1109/BIOWIRELESS.2012.6172730","url":null,"abstract":"A portable non-contact vital signs sensor system that is capable of continuously monitoring heart and respiration rates is presented. The system operates based on the continuous wave (CW) Doppler radar principle and has been evaluated using several antenna types: patch, Yagi, log-periodic and helical. The sensor operates at 2.4 GHz, realized on a custom designed low-cost PCB that integrates both the RF receiver (Rx) and transmitter (Tx) sections with analog electronics. It uses a quadrature receiver architecture with separate Tx and Rx antennas. The sensor using our custom designed helical antenna performs best among all antennas tested here. The sensor system can achieve a ±1 beat/min error versus the reference heartbeat signal for 75% of the continuous monitoring time, while the accuracy for the respiration rate is within ±1 breath/min for 95% of the time.","PeriodicalId":297010,"journal":{"name":"2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132381728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
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