EAGER: Hardware and Software Architecture for Wireless Sensing Systems Under Dynamic Load and Energy Availability

物联网呼应了无处不在的计算愿景，捕捉了一个由智能物体、结构和材料组成的深度连接的世界。在这一愿景中，依靠短暂能源运行的资源受限设备将发挥突出作用。该项目正在启用一类新的嵌入式系统，该系统在动态负载和收获条件下具有固有的鲁棒性和自适应性-这些条件将在新兴的物联网中普遍存在。该项目正在设计和评估基本的硬件和软件扩展，这些扩展与现有方法截然不同，具有潜在的变革性结果。同时，该项目还将为大学生和研究生提供研究培训，扩大参与范围，并推动灌溉系统地下泄漏检测新系统的进展。该技术计划涉及四个相关的重点：（1）团队正在探索基于联合储能概念的新能量收集和排放架构。新的架构可以动态控制充电和放电的优先级，以及关于每个组件的实值输入？的电荷状态。(2)该团队正在探索新的操作系统服务，用于管理充电和放电优先级，以及查询每个组件的当前充电状态。(3)该团队正在探索基于充电状态信息计算组件使用寿命的新方法。(4)最后，该团队正在建立一个操作测试平台，以评估所产生的技术的效用，利用正在进行的住宅灌溉泄漏检测工作。

The Internet of Things echoes the ubiquitous computing vision, capturing a deeply connected world populated by intelligent objects, structures, and materials. Resource-constrained devices that operate from ephemeral energy sources have a prominent role to play in this vision. This project is enabling a new class of embedded system that is inherently robust and adaptive in the presence of dynamic load and harvesting conditions - conditions that will be pervasive in the emerging Internet of Things. The project is designing and evaluating fundamental hardware and software extensions that are radically different from existing approaches, with potentially transformative results. At the same time, the project is providing research training for undergraduate and graduate students, contributing to broadening participation, and driving progress toward a new system for detecting underground leaks in irrigation systems.The technical plan involves four related thrusts: (1) The team is exploring a new energy harvesting and discharge architecture based on the concept of federated energy storage. The new architecture enables dynamic control of charge and discharge priorities, as well as real-valued inputs regarding each component?s charge state. (2) The team is exploring new operating system services for managing charge and discharge priorities, as well as for querying the current charge state of each component. (3) The team is exploring new approaches to calculating component service life based on state-of-charge information. (4) Finally, the team is building an operational testbed for evaluating the utility of the resulting techniques, leveraging ongoing work in the detection of residential irrigation leaks.