Name
Abstract | ||
|---|---|---|
Ambient energy harvesting is a well-known technique in wireless sensing systems. To minimize energy consumption, such systems are typically designed to be heavily duty-cycled with long idle times and are characteristically lightweight in computation. Often, these systems contain a dedicated energy harvesting transducer that is independent of the sensing sub-system. As a result, any output energy from the sensor ends up being unused (and hence, lost) when the system is in idle state. This work proposes a novel system architecture and corresponding hardware platform, Senergy, in which the energy harvested from a sensor during idle time is utilized to power the system. Senergy is based on an ultra-low power charge pump circuit that boosts input voltages as low as 330mV. We successfully demonstrate our proposed architecture with an RF-capable (2.4GHz ISM band) sensing platform utilizing a photovoltaic sensor as the sole energy source. We evaluate our approach on two applications, namely adaptive transmission of sensor data and providing an uninterrupted power supply to an on-board real time clock. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/IGCC.2014.7039162 | IGCC |
Keywords | Field | DocType |
uninterrupted power supply,ambient energy harvesting,ultralow power charge pump circuit,idle sensors,solar power,solar absorber-convertors,hardware platform,onboard real time clock,power harvesting,senergy,photovoltaic sensor,energy harvesting transducer,energy harvesting,wireless sensing systems,energy consumption minimization,sensor data adaptive transmission,wireless sensor networks,embedded systems,sole energy source,computer architecture,capacitors | Transducer,Real-time clock,Idle,Energy harvesting,ISM band,Electronic engineering,Energy source,Engineering,Energy consumption,Wireless sensor network,Embedded system | Conference |
Citations | PageRank | References |
3 | 0.37 | 13 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Woo Suk Lee | 1 | 51 | 4.55 |
| Hrishikesh Jayakumar | 2 | 130 | 7.80 |
| Vijay Raghunathan | 3 | 1932 | 170.13 |