2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI)最新文献_第3页

Estimation of remaining life using embedded SRAM for wearout parameter extraction 利用嵌入式SRAM进行磨损参数提取的剩余寿命估计

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184952

Woongrae Kim, Chang-Chih Chen, Taizhi Liu, Soonyoung Cha, L. Milor

引用次数: 6

A hybrid quasi-digital/neuromorphic architecture for tactile sensing in humanoid robots 仿人机器人触觉传感的准数字/神经形态混合结构

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184930

P. Ros, M. Crepaldi, D. Demarchi

{"title":"A hybrid quasi-digital/neuromorphic architecture for tactile sensing in humanoid robots","authors":"P. Ros, M. Crepaldi, D. Demarchi","doi":"10.1109/IWASI.2015.7184930","DOIUrl":"https://doi.org/10.1109/IWASI.2015.7184930","url":null,"abstract":"Neuromorphic engineering aims to study and develop, among the others, a new class of systems mimicking key aspects of biological systems, such as spiking (event-driven) information processing and communication, adaptive and learning behavior. Common application domains are sensory and cognitive systems, with a strong relation with the (humanoid) robotic world. Indeed, several neuromorphic sensors, inspired by human senses, have been developed, except tactile ones. Here we fill the gap by presenting a hybrid quasi-digital/neuromorphic architecture for robotic tactile sensors. Quasi-digital sensors share many features with neuromorphic systems, first of all the information encoding in the time domain. They naturally fit into an asynchronous event-driven fully-digital system, but to be fully integrated into neuromorphic applications the right framework and architecture has to be defined. Thanks to this approach, it is possible to seamlessly combine a precise continuously measuring system and a reactive sensory systems, retaining at the same time the advantages of low complexity, low area, low power consumption, distributed, and robust data acquisition systems.","PeriodicalId":395550,"journal":{"name":"2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126811545","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: 13

A low-power frontend system for fetal ECG monitoring applications 一种用于胎儿心电监测的低功耗前端系统

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184931

Shuang Song, M. J. Rooijakkers, P. Harpe, C. Rabotti, M. Mischi, A. Roermund, E. Cantatore

{"title":"A low-power frontend system for fetal ECG monitoring applications","authors":"Shuang Song, M. J. Rooijakkers, P. Harpe, C. Rabotti, M. Mischi, A. Roermund, E. Cantatore","doi":"10.1109/IWASI.2015.7184931","DOIUrl":"https://doi.org/10.1109/IWASI.2015.7184931","url":null,"abstract":"This paper presents a three-channel frontend system for fetal monitoring applications which includes three amplification chains, an ADC and all power management circuitry needed to feed the different building blocks from a single 1.4V supply. The specifications of the proposed system (0.38μVrms equivalent input noise, 74.5dB dynamic range and 0.5 to 200Hz signal bandwidth) are determined according to the properties of the fetal electrocardiogram (fECG) signal and realistic user scenarios. A low-power noise-reconfigurable preamplifier topology exploiting power optimization in both voltage and current domain is used, to achieve a Power Efficiency Factor (PEF) of 2.2 for the whole amplification chain. The 12bit SAR ADC is optimized for high resolution and power efficiency. The frontend system is designed in a 0.18μm CMOS process. Simulation results show that that each of the three amplification channels provides a total gain of 60dB a bandwidth of 200Hz, with an input equivalent noise of 0.38μVrms. The ADC provides 11.7bit ENOB and a FoM of 14fJ/step, while its sample speed can vary from 500Hz to 10kHz. The whole system consumes a power of 7.8μW when configured for the fECG application.","PeriodicalId":395550,"journal":{"name":"2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122613979","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: 3

Thermal control system based on thin film heaters and amorphous silicon diodes 基于薄膜加热器和非晶硅二极管的热控制系统

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184977

N. Lovecchio, G. Petrucci, D. Caputo, S. Alameddine, M. Carpentiero, L. Martini, E. Parisi, G. Cesare, A. Nascetti

引用次数: 13

A generic read-out circuit for resistive transducers 电阻式换能器的通用读出电路

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184929

Bahman Yousefzadeh, Ugur Sonmez, N. Mehta, J. Borremans, M. Pertijs, K. Makinwa

引用次数: 1

Reliable redundancy with memristive-biosensors to achieve statistical significance in immunosensing 具有记忆生物传感器的可靠冗余，在免疫传感中实现统计显著性

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184969

Ardalan Lotfi, D. Demarchi, F. Puppo, G. Micheli, S. Carrara, M. Doucey

引用次数: 0

Towards Internet of Things for event-driven low-power gas sensing using carbon nanotubes 利用碳纳米管实现事件驱动的低功耗气体传感的物联网

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184980

V. Jelicic, M. Magno, K. Chikkadi, C. Roman, C. Hierold, V. Bilas, L. Benini

{"title":"Towards Internet of Things for event-driven low-power gas sensing using carbon nanotubes","authors":"V. Jelicic, M. Magno, K. Chikkadi, C. Roman, C. Hierold, V. Bilas, L. Benini","doi":"10.1109/IWASI.2015.7184980","DOIUrl":"https://doi.org/10.1109/IWASI.2015.7184980","url":null,"abstract":"One of most important applications of sensing devices under the Internet of Things paradigm is air quality monitoring, which is particularly useful in urban and industrial environments where air pollution is an increasing public health problem. As these sensing systems are usually battery-powered and gas sensors are power-hungry, energy-efficient design and power management are required to extend the device's lifetime. In this paper, we present a two-stage concept where a novel low-power carbon nanotube is used as a gas detector for an energy-consuming metal-oxide (MOX) semiconductor gas sensor. We propose a design of a heterogeneous sensor node where we exploit the low-power nanotube gas sensor and the more accurate MOX sensor. This work performs energy consumption simulations for three event-driven scenarios to evaluate the power consumption reduction, as well as the limitations of carbon nanotubes. Our results show the benefits of the proposed approach over the scenarios with adaptive duty-cycling with only MOX gas sensors, proved with 20%-35% node lifetime prolongation. The delay introduced due to the nanotube recovery time can be overcome by radio duty-cycled activity for detecting alarm messages from the neighbour nodes.","PeriodicalId":395550,"journal":{"name":"2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127928105","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: 10

A noise-aware methodology for a Mobile Voice Screening application 用于移动语音筛选应用程序的噪声感知方法

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184933

Laura Verde, G. Pietro, P. Veltri, Giovanna Sannino

{"title":"A noise-aware methodology for a Mobile Voice Screening application","authors":"Laura Verde, G. Pietro, P. Veltri, Giovanna Sannino","doi":"10.1109/IWASI.2015.7184933","DOIUrl":"https://doi.org/10.1109/IWASI.2015.7184933","url":null,"abstract":"Dysphonia is a qualitative and quantitative alteration of the voice due to a structural or functional modification of one or more organs involved in voice production. Voice disorders are prevalent in certain working categories, particularly those of teachers, singers and actors. It is possible to evaluate the state of health of a voice through the acoustic analysis of the speech signal. This provides information about the presence of dysphonia by calculating specific parameters, such as the Fundamental Frequency (F0). In this paper we present a methodology to estimate F0 embedded in an m-health application, able to perform a simple and fast voice screening. The app acquires a user's vocal signal, and then elaborates and analyses it, distinguishing between a pathological and a healthy voice. Unfortunately, during the signal acquisition a noise can alter the F0's estimation, introducing possible errors in the acoustic analysis and therefore increasing the potential number of false-positive diagnoses of voice disorders. For this reason, the methodology presented is also able to reduce the incidence of any additional noise accidentally added during the user's vocal signal acquisition.","PeriodicalId":395550,"journal":{"name":"2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114268000","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

Development of an optomechanical measurement system for dynamic stability analysis 动态稳定性光机械测量系统的研制

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184951

S. Pasinetti, M. Lancini, V. Pasqui

引用次数: 1

Combined EEG/EMG evaluation during a novel dual task paradigm for gait analysis 一种新的双任务步态分析模式下的脑电/肌电联合评估

2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2015-06-18 DOI: 10.1109/IWASI.2015.7184949

M. Tommaso, E. Vecchio, K. Ricci, A. Montemurno, D. Venuto, V. Annese

{"title":"Combined EEG/EMG evaluation during a novel dual task paradigm for gait analysis","authors":"M. Tommaso, E. Vecchio, K. Ricci, A. Montemurno, D. Venuto, V. Annese","doi":"10.1109/IWASI.2015.7184949","DOIUrl":"https://doi.org/10.1109/IWASI.2015.7184949","url":null,"abstract":"Little knowledge is available about neural dynamics during natural motor behavior and its perturbation in aging and neurological diseases. In the present study, we aim to evaluate electroencephalography-electromyography (EEG-EMG) co-registration features of rest and walking in basal condition and under cognitive tasks in normal subjects to characterize a “normal gait” and to define the possible paradigm to detect abnormal behavior. We realized EEG-EMG co-registration in 17 healthy subjects in different conditions: 1) sitting, 2) standing 3) walking. A P300 oddball paradigm was performed during 4) standing condition and 5) during walking. We found that the P300 component amplitude increases during physical activity. The negative correlation between age and P300 component vanishes during gait. The spectral width of the total alpha rhythm appears reduced in the course of P300 in a static situation, with likely phenomena of desynchronization related to cognitive task. During gait, the activity is canceled, suggesting a state of \"idling\" of cortical areas previously involved in the process of recognition of the target stimulus. Additionally, EMG co-contraction and μ-rhythm desynchronization (μ-ERDs) are also analyzed using wireless equipment. It is demonstrated the EMG co-contraction validity, showing the possibility to discern a normal gait (tot. steps: 60; max co-contraction time: 100ms; average: 20ms) from a perturbed one (tot. steps: 60; max co-contraction time: 260ms; mean: 70ms). μ-ERDs were detected in about 60% of the analyzed steps, showing medium variations in μ - power of about -2.4.","PeriodicalId":395550,"journal":{"name":"2015 6th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115699288","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: 32