{"title":"TEG Data Collection Platform for Wearable Applications","authors":"Seyed Ahmad Mansoui, J. Lach","doi":"10.1145/3362053.3363492","DOIUrl":"https://doi.org/10.1145/3362053.3363492","url":null,"abstract":"Wearable systems have become popular in recent years, especially in health sensing applications where they enable long-term monitoring of patients. However, the majority of these devices are powered by batteries and regularly need to be recharged, creating not only issues of user compliance but also the potential for missing critical sensing events. Energy harvesting presents a promising solution to extend the lifetime of the batteries or even completely replace them for continuous self-powered operation. Thermoelectric generators (TEGs) provide the potential for self-powered wearables by harvesting the heat generated by the human body. However, environmental dynamics and human behavior - specifically airflow around the TEG - affects the harvestable energy, resulting in a highly dynamic energy source that can affect the potential for self-powered operation. In this project, we designed a wearable data collection platform that records environmental and behavioral data with a concentration on airflow around the wrist. This platform collects traces based on real-world environmental and behavioral dynamics, enabling exploration of energy harvesting dynamics and the potential for TEG-powered wearable applications.","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":"128050299","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}
Michel Rottleuthner, T. Schmidt, Matthias Wählisch
{"title":"Eco: A Hardware-Software Co-Design for In Situ Power Measurement on Low-end IoT Systems","authors":"Michel Rottleuthner, T. Schmidt, Matthias Wählisch","doi":"10.1145/3362053.3363495","DOIUrl":"https://doi.org/10.1145/3362053.3363495","url":null,"abstract":"In this paper, we present Eco, a hardware-software co-design enabling generic energy management on IoT nodes. Eco is tailored to devices with limited resources and thus targets most of the upcoming IoT scenarios. The proposed measurement module combines commodity components with common system interfaces to achieve easy, flexible integration with various hardware platforms and the RIOT IoT operating system. We thoroughly evaluate and compare accuracy and overhead. Our findings indicate that our commodity design competes well with highly optimized solutions, while being significantly more versatile. We employ Eco for energy management on RIOT and validate its readiness for deployment in a five-week field trial integrated with energy harvesting.","PeriodicalId":164322,"journal":{"name":"Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128172088","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}
{"title":"Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems","authors":"","doi":"10.1145/3362053","DOIUrl":"https://doi.org/10.1145/3362053","url":null,"abstract":"","PeriodicalId":164322,"journal":{"name":"Proceedings of the 7th International Workshop on Energy Harvesting & Energy-Neutral Sensing Systems","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125274390","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}