Next-generation prototyping of sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Perpetual environmentally powered sensor networks
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Everlast: long-life, supercapacitor-operated wireless sensor node
Proceedings of the 2006 international symposium on Low power electronics and design
Adaptive power management in energy harvesting systems
Proceedings of the conference on Design, automation and test in Europe
Power management in energy harvesting sensor networks
ACM Transactions on Embedded Computing Systems (TECS) - Special Section LCTES'05
Approximate Control Design for Solar Driven Sensor Nodes
HSCC '08 Proceedings of the 11th international workshop on Hybrid Systems: Computation and Control
Optimal service level allocation in environmentally powered embedded systems
Proceedings of the 2009 ACM symposium on Applied Computing
Power management in energy harvesting embedded systems with discrete service levels
Proceedings of the 14th ACM/IEEE international symposium on Low power electronics and design
An energy management framework for energy harvesting embedded systems
ACM Journal on Emerging Technologies in Computing Systems (JETC)
Comparison of energy intake prediction algorithms for systems powered by photovoltaic harvesters
Microelectronics Journal
Evaluation and design exploration of solar harvested-energy prediction algorithm
Proceedings of the Conference on Design, Automation and Test in Europe
Dynamic power management in environmentally powered systems
Proceedings of the 2010 Asia and South Pacific Design Automation Conference
Energy management for time-critical energy harvesting wireless sensor networks
SSS'10 Proceedings of the 12th international conference on Stabilization, safety, and security of distributed systems
Maximum utility rate allocation for energy harvesting wireless sensor networks
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Proceedings of the 20th International Conference on Real-Time and Network Systems
Harvesting-aware power management for real-time systems with renewable energy
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Adaptive scheduling of real-time systems cosupplied by renewable and nonrenewable energy sources
ACM Transactions on Embedded Computing Systems (TECS) - Special Section on ESTIMedia'10
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This paper is concerned with solar driven sensors deployed in an outdoor environment. We present feedback controllers which adapt parameters of the application such that a maximal utility is obtained while respecting the time-varying amount of available energy. We show that already simple applications lead to complex optimization problems, involving unacceptable running times and energy consumptions for resource constrained nodes. In addition, naive designs are highly susceptible to energy prediction errors. We address both issues by proposing a hierarchical control approach which both reduces complexity and increases robustness towards prediction uncertainty. As a key component of this hierarchical approach, we propose a new worst-case energy prediction algorithm which guarantees sustainable operation. All methods are evaluated using long-term measurements of solar energy in an outdoor setting. Furthermore, we measured the implementation overhead on a real sensor node.