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2017 7th IEEE International Workshop on Advances in Sensors and Interfaces (IWASI)最新文献

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Development of a multi-lead ECG wearable sensor system for biomedical applications 用于生物医学应用的多导联心电可穿戴传感器系统的开发
Pub Date : 2017-07-13 DOI: 10.1109/IWASI.2017.7974253
M. Caldara, D. Comotti, L. Gaioni, Andrea Pedrana, M. Pezzoli, V. Re, G. Traversi
This work is concerned with the development of a wireless low-power wearable system to be used for multi-lead ECG monitoring. Potential applications can range from sport and ñtness to healthcare. The paper aims to present the architecture of the system and its performance, along with in-vivo results achieved with carbon based smart textiles.
本工作是关于一个无线低功耗可穿戴系统的发展,用于多导联心电监测。潜在的应用范围从体育和ñtness到医疗保健。本文旨在介绍该系统的架构及其性能,以及碳基智能纺织品在体内取得的结果。
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引用次数: 4
Flexible pressure and proximity sensor surfaces manufactured with organic materials 用有机材料制造的柔性压力和接近传感器表面
Pub Date : 2017-07-10 DOI: 10.1109/IWASI.2017.7974214
M. Fattori, E. Cantatore, G. Pauer, T. Agostinelli, B. Stadlober, H. Gold
This paper presents the design of two large-area active matrixes on foil for pressure and proximity sensing applications. Frontend circuits based on organic thin-film transistors on foil are laminated with screen-printed PDVF-TrFE piezo and pyro sensors to create the complete flexible sensing systems. After defining the specifications based on the application scenarios, and designing the frontend electronics, the performance of the two sensing surfaces has been investigated in simulation. Numerical results show a readout speed of 5kframe/s and 60dB of dynamic range with impact forces up to 100kN for the 6×10 pixel pressure sensing surface. 40 dB of dynamic range can be achieved with the proximity detector by integrating optical lenses and the pyroelectric sensor array with unambiguous pixel addressing circuitry which exploits organic TFTs.
本文介绍了两种用于压力和接近传感的大面积有源矩阵的设计。基于箔上有机薄膜晶体管的前端电路与丝网印刷的PDVF-TrFE压电和热传感器层压,以创建完整的柔性传感系统。根据应用场景确定了技术指标,设计了前端电子器件,对两种传感表面的性能进行了仿真研究。数值结果表明,6×10像素压力传感表面的读数速度为5kframe/s,动态范围为60dB,冲击力可达100kN。通过集成光学透镜和热释电传感器阵列以及利用有机tft的清晰像素寻址电路,该接近检测器可以实现40 dB的动态范围。
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引用次数: 4
Low-cost antenna technology for LPWAN IoT in rural applications LPWAN物联网在农村应用中的低成本天线技术
Pub Date : 2017-06-15 DOI: 10.1109/IWASI.2017.7974231
C. Pham, F. Ferrero, M. Diop, L. Lizzi, Ousmane Dieng, Ousmane Thiaré
The article describes a low-cost and open IoT platform for rural applications in developing countries. Using the latest low-power, long-range radio technologies and off-the-shelves components, the platform can be quickly deployed and customized for a large variery of rural applications. We present in the article how a low-cost IoT collar device especially addressing the cattle rustling issues can be built from the platform. The article then focuses on the antenna part by presenting how a low-cost integrated antenna design can increase the robustness of the IoT collar by avoiding external fragile parts while preserving a high transmission quality.
本文介绍了一个面向发展中国家农村应用的低成本开放式物联网平台。使用最新的低功耗、远程无线电技术和现成的组件,该平台可以快速部署和定制各种农村应用。我们在文章中介绍了如何从平台构建低成本的物联网项圈设备,特别是解决牛沙沙问题。然后,本文重点介绍了天线部分,介绍了低成本集成天线设计如何通过避免外部易碎部件来增加物联网项圈的稳健性,同时保持高传输质量。
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引用次数: 14
Activation of bottom-up and top-down auditory pathways by US sensors based interface 基于US传感器的接口激活自下而上和自上而下的听觉通路
Pub Date : 2017-06-15 DOI: 10.1109/IWASI.2017.7974200
D. Menniti, M. G. Bianco, S. Pullano, R. Citraro, E. Russo, G. Sarro, A. Fiorillo
In this paper we investigate the neural activation of both bottom-up and top-down auditory pathways in rats by means of electrical stimulation. The electrical signals are generated by a bio-inspired sonar and processed by an electronic interface, thought to emulate the mammals biosonar. We stimulate the Inferior Colliculus and the Auditory Cortex through different signal patterns related to ultrasound echoes. In order to investigate neural response to stimuli, we perform Principal Component Analysis and spectral analysis on the electrocorticographic recordings. It is clear that neurons modulate their functional state in response to the external stimulus and its features, strongly highlighting that the electrical inputs are efficiently encoded by both ascending and descending acoustic fibers.
本文研究了电刺激下大鼠自下而上和自上而下听觉通路的神经激活。电子信号由生物声纳产生,并由电子接口处理,被认为是模仿哺乳动物的生物声纳。我们通过与超声回波相关的不同信号模式刺激下丘和听觉皮层。为了研究神经对刺激的反应,我们对皮质电图记录进行了主成分分析和频谱分析。很明显,神经元调节其功能状态以响应外部刺激及其特征,强烈强调电输入是由上行和下行声纤维有效编码的。
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引用次数: 0
Wiring brain and artificial neurons through neural interfaces and memristive synapses: The first steps 通过神经接口和记忆突触连接大脑和人工神经元:第一步
Pub Date : 2017-06-15 DOI: 10.1109/IWASI.2017.7974206
S. Vassanelli
Neural interfaces are making it possible to record and stimulate brain activity at high spatiotemporal resolution, at the level of single neurons and across neural networks. In parallel, brain-inspired nano- and microelectronic devices and circuits are being developed that emulate functional properties of biological neurons and networks. Memristors, in particular, are promising candidates to emulate synapses in terms of transmission and signal processing capability. We show first evidence that memristors can be used to compress information of signals from biological neurons as recorded by high-resolution multielectrode arrays and discuss the perspective that these devices will serve as synaptic-like bioelectronic links between biological neurons and artificial counterparts in advanced brain-chip interfaces.
神经接口使得记录和刺激大脑活动在高时空分辨率,在单个神经元和跨神经网络的水平上成为可能。与此同时,模仿生物神经元和网络功能特性的受大脑启发的纳米和微电子设备和电路正在开发中。特别是忆阻器,在传输和信号处理能力方面是模拟突触的有希望的候选者。我们首次展示了记忆电阻器可用于压缩高分辨率多电极阵列记录的生物神经元信号信息的证据,并讨论了这些设备将在高级脑芯片接口中作为生物神经元和人工对应物之间的突触样生物电子链接的观点。
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引用次数: 0
Comparison of electrode technologies for dry and portable EEG acquisition 干式和便携式脑电采集电极技术的比较
Pub Date : 2017-06-15 DOI: 10.1109/IWASI.2017.7974202
Mark E. O'Sullivan, Jonatan Poveda Pena, Andrea Bocchino, C. O’Mahony, Daniel Costello, E. Popovici, A. Temko
Clinical evaluation of electroencephalogram (EEG) is essential for monitoring the electrical activity present in the brain. In collusion with engineering advances, the movement towards portable, rapid and low-cost EEG acquisition and monitoring is growing. A low-cost and portable system for neonatal EEG is presented in this paper that aims to improve signal quality and robustness, while decreasing the preparation time and efforts required to complete a routine EEG recording. Several novel designs of dry, wet, active and passive electrodes are presented and compared with the standard EEG acquisition method using objective tests and subjective assessment by an epileptologist. It is shown that sufficient quality is achievable using dry setups, such as microneedle electrodes, with minimal patient preparation for the acquisition of clinical grade recordings.
临床评估脑电图(EEG)是必不可少的监测电活动存在于大脑。随着工程技术的进步,便携式、快速和低成本的脑电图采集和监测的趋势正在增长。本文提出了一种低成本便携式新生儿脑电图系统,旨在提高信号质量和鲁棒性,同时减少完成常规脑电图记录所需的准备时间和工作量。提出了几种新的干、湿、主动和被动电极设计,并通过客观测试和癫痫学家的主观评估与标准脑电图采集方法进行了比较。研究表明,使用干燥装置(如微针电极)可以达到足够的质量,只需最少的患者准备即可获得临床级记录。
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引用次数: 11
Characterization of modified working electrodes for sensing applications by means of electrolyte-gated TFT and cyclic voltammetry 用电解门控TFT和循环伏安法表征传感应用的修饰工作电极
Pub Date : 2017-06-15 DOI: 10.1109/IWASI.2017.7974216
Brigitte Holzer, K. Manoli, N. Ditaranto, E. Macchia, C. Franco, G. Scamarcio, L. Torsi
The characterization of functionalized electrodes by means of cyclic voltammetry constitutes an important step in the development of an electrochemical based biosensors. Herein an electrolyte gated thin-film transistor (EG-TFT) setup is proposed to acquire both cyclic voltammograms and transistor transfer characteristics using a semiconductor parameter analyzer. The redox behavior of a probe is studied in such a setup using the gate electrode of the EG-TFT as working electrode and it is compared to a conventional three electrode electrochemical cell setup. The complementary techniques acquirable by the EG-TFT setup are used to investigate protein immobilization via self-assembled monolayers on the surface of gold working electrodes.
利用循环伏安法表征功能化电极是开发基于电化学的生物传感器的重要一步。本文提出了一种电解质门控薄膜晶体管(EG-TFT)装置,利用半导体参数分析仪获得循环伏安图和晶体管转移特性。在使用EG-TFT的栅电极作为工作电极的这种设置中,研究了探针的氧化还原行为,并将其与传统的三电极电化学电池设置进行了比较。通过egg - tft装置获得的互补技术用于研究通过金工作电极表面的自组装单层膜固定蛋白质。
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引用次数: 0
Autonomous vehicles: A playground for sensors 自动驾驶汽车:传感器的游乐场
Pub Date : 2017-06-15 DOI: 10.1109/IWASI.2017.7974198
A. Sangiovanni-Vincentelli, B. Vigna
The automotive electronics market has increased steadily over the past several years even at times when the automobile market per se is not growing substantially. Indeed the per car electronics content is increasing at a fast pace. This is just the tip of the iceberg as we are entering the age of the “zero-accident car” with autonomous driving based on wireless and wired networks of powerful sensors (potentially including intelligent tires) and complex control algorithms implemented on a distributed computing platform. The key to this brave new world is the continuous evolution of the sensor component of the car electrical architecture. We will discuss the sensor design and manufacturing challenges to bring autonomous cars on the street. Albeit significant steps have been made in the technology base that sustains autonomous driving, massive algorithmic and integration problems loom here.
汽车电子市场在过去几年中稳步增长,即使在汽车市场本身没有实质性增长的时候。事实上,每辆汽车的电子产品含量正在快速增长。这只是冰山一角,因为我们正在进入“零事故汽车”时代,自动驾驶基于强大传感器(可能包括智能轮胎)的无线和有线网络,以及在分布式计算平台上实现的复杂控制算法。这个美丽新世界的关键是汽车电气架构的传感器组件的不断发展。我们将讨论传感器的设计和制造挑战,使自动驾驶汽车上路。尽管在支撑自动驾驶的技术基础上已经取得了重大进展,但大量的算法和集成问题依然隐现。
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引用次数: 6
A sub-10mW real-time implementation for EMG hand gesture recognition based on a multi-core biomedical SoC 基于多核生物医学SoC的肌电信号手势识别实时实现
Pub Date : 2017-06-15 DOI: 10.1109/IWASI.2017.7974234
S. Benatti, G. Rovere, Jonathan Bosser, Fabio Montagna, Elisabetta Farella, Horian Glaser, Philipp Schönle, T. Burger, S. Fateh, Qiuting Huang, L. Benini
Real-time biosignal classification in power-constrained embedded applications is a key step in designing portable e-healtb devices requiring hardware integration along with concurrent signal processing. This paper presents an application based on a novel biomedical System-On-Chip (SoC) for signal acquisition and processing combining a homogeneous multi-core cluster with a versatile bio-potential front-end. The presented implementation acquires raw EMG signals from 3 passive gel-electrodes and classifies 3 hand gestures using a Support Vector Machine (SVM) pattern recognition algorithm. Performance matches state-of-the-art high-end systems both in terms of recognition accuracy (>S5%) and of real-time execution (gesture recognition time 300 ms). The power consumption of the employed biomedical SoC is below 10 mW, outperforming implementations on conunercial MCUs by a factor of 10, ensuring a battery life of up to 160 hours with a common Li-ion 1600 mAh battery.
在功率受限的嵌入式应用中,实时生物信号分类是设计需要硬件集成和并发信号处理的便携式电子健康设备的关键步骤。本文提出了一种基于新型生物医学片上系统(SoC)的信号采集和处理应用,该系统将同质多核集群与多功能生物电位前端相结合。该实现从3个无源凝胶电极获取原始肌电信号,并使用支持向量机(SVM)模式识别算法对3种手势进行分类。在识别精度(> 5%)和实时执行(手势识别时间300毫秒)方面,性能与最先进的高端系统相匹配。所采用的生物医学SoC的功耗低于10 mW,比商用mcu的实现性能高出10倍,确保使用普通锂离子1600毫安时电池的电池寿命长达160小时。
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引用次数: 26
Cyber-physical virtual platforms: Techniques for sensors integration 网络物理虚拟平台:传感器集成技术
Pub Date : 2017-06-15 DOI: 10.1109/IWASI.2017.7974211
F. Fummi
Cyber-physical systems (CPSs) embed HW/SW devices that implement controlling strategies of physical processes. Such strategies are usually designed as architecture agnostic mathematical models, that are unaware of constraints imposed by the embedded HW platform. As such, the developed strategy may be unable to control the actual system. This implies the need of cyber-physical virtual-platforms (VPs), where an abstract control algorithm can be refined up to its actual SW implementation. This speech investigates the main methodologies for extending standard embedded VPs to cyber-physical VPs that integrate continuous-time components, like sensors and analog interfaces. We examine the theoretical problem of integrating different models of computations and its practical solution through co-simulation, particularly based on the FMI/FMU standards. However, computational bottlenecks discourage in using co-simulation in real cases, thus more innovative solutions must be used, like the automatic abstraction of IP components. Such techniques are mature and well developed if applied to digital IPs, while they are in their infancy for analog IPs. However, the speech presents innovative and affective approaches in this field. Finally, a cyber-physical VP is also useful for checking and estimating extra-functional properties like power consumption, temperature, ageing and functional safety. This would require the integration of plenty of tools, or the generation of extra-functional models to be integrated in the same cyber-physical VP, which becomes the core tool for CPSs design, validation and optimization.
网络物理系统(cps)嵌入实现物理过程控制策略的硬件/软件设备。这类策略通常被设计为与架构无关的数学模型,不知道嵌入式硬件平台施加的约束。因此,制定的策略可能无法控制实际系统。这意味着需要网络物理虚拟平台(VPs),其中抽象控制算法可以细化到实际的软件实现。本演讲探讨了将标准嵌入式副总裁扩展到集成连续时间组件(如传感器和模拟接口)的网络物理副总裁的主要方法。我们研究了整合不同计算模型的理论问题及其通过联合仿真的实际解决方案,特别是基于FMI/FMU标准。然而,计算瓶颈阻碍了在实际情况下使用联合仿真,因此必须使用更创新的解决方案,如IP组件的自动抽象。如果应用于数字ip,这些技术是成熟和发达的,而用于模拟ip则处于起步阶段。然而,演讲提出了创新和有效的方法在这一领域。最后,网络物理VP还可用于检查和估计额外的功能特性,如功耗、温度、老化和功能安全。这将需要集成大量的工具,或者生成额外的功能模型来集成在同一个网络物理VP中,这将成为cps设计、验证和优化的核心工具。
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引用次数: 0
期刊
2017 7th IEEE International Workshop on Advances in Sensors and Interfaces (IWASI)
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