Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems最新文献_第2页

eProfiler

Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems Pub Date : 2020-11-16 DOI: 10.1145/3417308.3430265

Giannis Kazdaridis, Ioannis Zografopoulos, N. Sidiropoulos, Polychronis Symeonidis, T. Korakis

{"title":"eProfiler","authors":"Giannis Kazdaridis, Ioannis Zografopoulos, N. Sidiropoulos, Polychronis Symeonidis, T. Korakis","doi":"10.1145/3417308.3430265","DOIUrl":"https://doi.org/10.1145/3417308.3430265","url":null,"abstract":"Modern Internet-of-Things (IoT) devices and sensor systems exhibit extreme dynamic current consumption profile, since latest microprocessors and electronics support ultra-low currents in the sleep phase, of only a few nA, while they expend several mA in the active state. Existing power meters are incapable of measuring their expenditure in order to aid the development of energy-efficient schemes. In this work we introduce the eProfiler, a novel in-situ system for measuring the power expenditure of sensing devices that illustrate a wide current range. Our meter features an autoranging shunt-resistor switch that supports ultra-fast alternations of 6ns, formed with the aid of high-speed comparators, that can successfully adapt to any sharp transition. Moreover, a high-speed Analog-to-Digital Converter (ADC) with multiple inputs is employed to simultaneously monitor the shunt-resistors, delivering a speed of 150 kSamples/s at 16 bit resolution. The proposed meter can be leveraged for the real-time, as well as the long-term monitoring of IoT devices with its cost being less than 90 euros. Furthermore, the proposed system can actuate or trace state alternations on I/O pins with a maximum delay of 2 &mgr;s, in order to provide correlation capabilities with the obtained power measurements. The eProfiler features a wide dynamic range of 1.000.000:1 while also being able to monitor currents of a few nA. The average obtained error of the meter is 0.45 %, with a maximum error of 1.6 %.","PeriodicalId":386523,"journal":{"name":"Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems","volume":"217 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121674984","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

Towards Battery-Free Body Sensor Networks 迈向无电池身体传感器网络

Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems Pub Date : 2020-11-16 DOI: 10.1145/3417308.3430275

Sougata Sen, S. Lee, R. Jackson, Rui Wang, N. Alshurafa, Josiah D. Hester, Jeremy Gummeson

{"title":"Towards Battery-Free Body Sensor Networks","authors":"Sougata Sen, S. Lee, R. Jackson, Rui Wang, N. Alshurafa, Josiah D. Hester, Jeremy Gummeson","doi":"10.1145/3417308.3430275","DOIUrl":"https://doi.org/10.1145/3417308.3430275","url":null,"abstract":"Wearable devices traditionally rely on batteries as the primary source of energy for operation. Batteries are often rigid, bulky, heavy, and require constant recharging, consequently hampering the development of novel device applications. This paper describes a new vision for Body Sensor Networks (BSNs); an interconnection of tiny, flexible, battery-free, cooperative, and programmable wearables via the concept of Intra-Body Power Transfer and Communication (IBPTC), which uses the human body as a medium to exchange energy and data. These wearable devices can receive energy from central, on-body power sources, and coordinate to support whole-system operation and programmer-defined sensing tasks. Of course, this vision entails significant challenges; notably in developing robust hardware and software for energy and information exchange across the body channel, enabling power failure resiliency and timely coordinated task execution. In this paper, we describe a roadmap of systems and tools towards the ultimate vision of battery-free BSNs that has the potential to transform current architectures and designs of BSNs, enabling innovative applications that would otherwise be impossible with on-device batteries.","PeriodicalId":386523,"journal":{"name":"Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132743921","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

Comparing NVM Technologies through the Lens of Intermittent Computation 从间歇计算的角度比较NVM技术

Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems Pub Date : 2020-11-16 DOI: 10.1145/3417308.3430268

Timothy Daulby, Anand Savanth, A. Weddell, G. Merrett

引用次数: 8

Defragmenting Energy Storage in Batteryless Sensing Devices 无电池传感装置中的碎片整理能量存储

Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems Pub Date : 2020-11-16 DOI: 10.1145/3417308.3430271

Eren Yildiz, K. Yıldırım

引用次数: 4

Reliable Energy Sources as a Foundation for Reliable Intermittent Systems 可靠能源是可靠间歇系统的基础

Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems Pub Date : 2020-11-16 DOI: 10.1145/3417308.3430276

Dhananjay Jagtap, P. Pannuto

{"title":"Reliable Energy Sources as a Foundation for Reliable Intermittent Systems","authors":"Dhananjay Jagtap, P. Pannuto","doi":"10.1145/3417308.3430276","DOIUrl":"https://doi.org/10.1145/3417308.3430276","url":null,"abstract":"This paper defines architectural and operational principles for simple and reliable energy harvesting devices that can be used in service of high-level applications. For many maintenance and monitoring tasks, we propose that it is more valuable to have reliable, trusted affirmations that nothing has changed than it is to know the exact moment that something has failed. This presents an opportunity for a new class of highly reliable, but not necessarily timely, intermittent devices. These are devices that are capable of sending messages at reasonable, fixed intervals (e.g. once an hour or once a day). They cannot activate more often, but they also promise not to activate less often. To establish this reliability, we look to opportunities for energy scavenging that are often ignored as their instantaneous power delivery capability is very limited. However, unlike higher power scavenging opportunities, many of these sources are not intermittent. Such sources may provide less than a microwatt, but their trickle of energy will be continuously, reliably available for months to decades. This enables the creation of devices that can be guaranteed to activate at predictable intervals, which allows for the construction of non-intermittent systems atop intermittent devices.","PeriodicalId":386523,"journal":{"name":"Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133979239","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