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Ekho: bridging the gap between simulation and reality in tiny energy-harvesting sensors.
| Content Provider | CiteSeerX |
|---|---|
| Author | Zhang, Hong Salajegheh, Mastooreh Fu, Kevin Sorber, Jacob |
| Abstract | Harvested energy makes long-term maintenance-free sen-sor deployments possible; however, as devices shrink in order to accommodate new applications, tightening energy budgets and increasing power supply volatility leaves system designers poorly equipped to predict how their devices will behave when deployed. This paper describes the design and initial FPGA-based implementation of Ekho, a tool that records and emulates energy harvesting conditions, in order to sup-port realistic and repeatable testing and experimenta-tion. Ekho uses the abstraction of I-V curves—curves that describe harvesting current with respect to supply voltage—to accurately represent harvesting conditions, and supports a range of harvesting technologies. An early prototype emulates I-V curves with 0.1mA accuracy, and responds in 4.4µs to changes in energy conditions. 1. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Tiny Energy-harvesting Sensor Gap Simulation I-v Curve System Designer Power Supply Volatility Initial Fpga-based Implementation Harvested Energy New Application Energy Condition Early Prototype Long-term Maintenance-free Sen-sor Deployment Energy Budget Repeatable Testing |
| Content Type | Text |
| Resource Type | Article |
