Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems最新文献

Revisiting Time Remanence Clocks for Energy Harvesting Wireless Sensor Nodes 能量收集无线传感器节点的时间剩余时钟重访

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363496

Vishal Deep, Aditi Mishra, D. Qiao, Henry Duwe

引用次数: 0

No Batteries Needed: Providing Physical Context with Energy-Harvesting Beacons 无需电池:为能量收集信标提供物理环境

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363489

Nurani Saoda, Bradford Campbell

{"title":"No Batteries Needed: Providing Physical Context with Energy-Harvesting Beacons","authors":"Nurani Saoda, Bradford Campbell","doi":"10.1145/3362053.3363489","DOIUrl":"https://doi.org/10.1145/3362053.3363489","url":null,"abstract":"Battery-powered digital beacons have played a significant role in shrinking the gap between physical and digital world. At the same time, ubiquitous sensing encourages tiny, unobtrusive, energy-harvesting devices to eliminate the limited lifetime of battery-powered devices. In this paper, we design a new fire-and-forget room number broadcaster beacon to investigate the feasibility and performance of such a design point. We study how several factors including different deployment spaces, the storage capacity of the harvester, indoor light intensity levels, and spatial position of the receiver impact the performance in three real-world deployments. We find that the 95th percentile of inter-packet reception time is 35 s or less in a lab space with exposure to sunlight and indoor lights, 29 s or less in an industrial plant with indoor lights, and 405 s or more in office rooms. With strategic beacon placement and a light intensity level of only 390 lx, performance can be improved by 61%. We believe that these results will help guide future energy-harvesting beacon deployments. We also outline possible improvements for future energy-harvesting beacon designs.","PeriodicalId":164322,"journal":{"name":"Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133437097","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: 11

The Internet of Intermittent Things, a Land of Low-Hanging Fruits 间歇性物联网，唾手可得的果实之地

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363493

C. Renner, Matteo Zella

引用次数: 4

TinyBird: An Energy Neutral Acoustic Bluetooth-Low-Energy Sensor Node with RF Energy Harvesting TinyBird:具有射频能量收集功能的能量中性声学蓝牙低能量传感器节点

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363498

Oliver Brunecker, M. Magno

{"title":"TinyBird: An Energy Neutral Acoustic Bluetooth-Low-Energy Sensor Node with RF Energy Harvesting","authors":"Oliver Brunecker, M. Magno","doi":"10.1145/3362053.3363498","DOIUrl":"https://doi.org/10.1145/3362053.3363498","url":null,"abstract":"Continuous advances in sensing and wireless technology now permit acoustic data acquisition and wireless transmission. With these technological developments, new application scenarios are a focal important for research theses. In particular in-vivo animal monitoring is a quickly growing domain, in which the wireless sensor needs to be placed on the animal's body and should be unobtrusive, light-weight, small, and long-lasting, or perpetually working. This paper presents the design and development of TinyBird, an ultra-low-power, miniaturized and lightweight wireless sensor node for acoustic monitoring. The node is designed to be worn with minimal effort by small-sized birds, to collect, process, and send/receive data to/from a remote host via Bluetooth Low-Energy. The main feature of the developed node is the capability to stream compressed or uncompressed audio data continuously. One unique feature of TinyBirds is the capability to harvest energy from a RF Power transmitter with a 12mm x 2.4mm antenna. Moreover, TinyBird achieves self-sustainability when placed 40cm from the RF source and streaming data at 16kHz. Finally the low power consumption of only 157μW, when in idle mode that allows the node to achieve self-sustainability with longer distances.","PeriodicalId":164322,"journal":{"name":"Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116428547","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

Low-Power Ultrasonic Wake-Up and Communication through Structural Elements 低功率超声唤醒与结构元件通信

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363490

Peter Oppermann, C. Renner

引用次数: 4

Towards battery-free LPWAN wearables 迈向无电池LPWAN可穿戴设备

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363488

Charalampos Orfanidis, Konstantinos Dimitrakopoulos, Xenofon Fafoutis, M. Jacobsson

引用次数: 6

On the Accuracy of Network Synchronization Using Persistent Hourglass Clocks 基于持久沙漏时钟的网络同步精度研究

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363497

Eren Çürük, K. Yıldırım, P. Pawełczak, Josiah D. Hester

{"title":"On the Accuracy of Network Synchronization Using Persistent Hourglass Clocks","authors":"Eren Çürük, K. Yıldırım, P. Pawełczak, Josiah D. Hester","doi":"10.1145/3362053.3363497","DOIUrl":"https://doi.org/10.1145/3362053.3363497","url":null,"abstract":"Batteryless sensor nodes compute, sense, and communicate using only energy harvested from the ambient. These devices promise long maintenance free operation in hard to deploy scenarios, making them an attractive alternative to battery-powered wireless sensor networks. However, complications from frequent power failures due to unpredictable ambient energy stand in the way of robust network operation. Unlike continuously-powered systems, intermittently-powered batteryless nodes lose their time upon each reboot, along with all volatile memory, making synchronization and coordination difficult. In this paper, we consider the case where each batteryless sensor is equipped with a hourglass capacitor to estimate the elapsed time between power failures. Contrary to prior work that focused on providing a continuous notion of time for a single batteryless sensor, we consider a network of batteryless sensors and explore how to provide a network-wide, continuous, and synchronous notion of time. First, we build a mathematical model that represents the estimated time between power failures by using hourglass capacitors. This allowed us to simulate the local (and continuous) time of a single batteryless node. Second, we show--through simulations--the effect of hourglass capacitors and in turn the performance degradation of the state of the art synchronization protocol in wireless sensor networks in a network of batteryless devices.","PeriodicalId":164322,"journal":{"name":"Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131834543","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

A Scalable, Data-driven Approach for Power Estimation of Photovoltaic Devices under Indoor Conditions 一种可扩展的、数据驱动的室内光伏设备功率估计方法

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363494

Xinyv Ma, S. Bader, B. Oelmann

引用次数: 4

DUO: Integration of Dependable Undervolting in Operating Systems 操作系统中可靠欠电压的集成

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363487

R. Hartung, Rasmus Antons, U. Kulau, L. Wolf

引用次数: 1

Camaroptera: a Batteryless Long-Range Remote Visual Sensing System 翅目:一种无电池远程遥感系统

Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems Pub Date : 2019-11-10 DOI: 10.1145/3362053.3363491

M. Nardello, H. Desai, D. Brunelli, Brandon Lucia

{"title":"Camaroptera: a Batteryless Long-Range Remote Visual Sensing System","authors":"M. Nardello, H. Desai, D. Brunelli, Brandon Lucia","doi":"10.1145/3362053.3363491","DOIUrl":"https://doi.org/10.1145/3362053.3363491","url":null,"abstract":"Batteryless image sensors present an opportunity for pervasive wide-spread remote sensor deployments that require little maintenance and have low cost. However, the reliance of these devices on energy harvesting presents tight constraints in the quantity of energy that can be stored and used, as well as limited, energy-dependent availability. In this work, we develop Camaroptera, the first batteryless, energy-harvesting image sensing platform to support active, long-range communication. Camaroptera reduces the high latency and energy cost of communication by using near-sensor processing pipelines to identify interesting images and transmit them to a far-away base station, while discarding uninteresting images. Camaroptera also dynamically adapts its processing pipeline to maximize system availability and responsiveness to interesting events in different harvesting conditions. We fully prototype the Camaroptera hardware platform in a compact, 2cm x 3cm x 5cm volume, composed of three adjoined circuit boards. We evaluate Camaroptera demonstrating the viability of a batteryless remote sensing platform in a small package. We show that compared to a system that transmits all image data, Camaroptera's processing pipelines and adaptive processing scheme captures and sends 2-5X more images of interest to an application.","PeriodicalId":164322,"journal":{"name":"Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121070157","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: 51