ABSTRACT
This paper describes a supercapacitor-operated, solar-powered wireless sensor node called Everlast. Unlike traditional wireless sensors that store energy in batteries, Everlast's use of supercapacitors enables the system to operate for an estimated lifetime of 20 years without any maintenance. The novelty of this system lies in the feed-forward, pulse-frequency modulated (PFM) converter and open-circuit solar voltage method for maximum power point tracking (MPPT), enabling the solar cell to efficiently charge the supercapacitor and power the node. Experimental results show that Everlast can achieve low power consumption, long operational lifetime, and high transmission rates, something that traditional sensor nodes cannot achieve simultaneously and must trade-off.
Index Terms
- Everlast: long-life, supercapacitor-operated wireless sensor node
Recommendations
Everlast: long-life, supercapacitor-operated wireless sensor node
ISLPED '06: Proceedings of the 2006 international symposium on Low power electronics and designThis paper describes a supercapacitor-operated, solar-powered wireless sensor node called Everlast. Unlike traditional wireless sensors that store energy in batteries, Everlast's use of supercapacitors enables the system to operate for an estimated ...
Design of new power management system in wireless sensor network
WiCOM'09: Proceedings of the 5th International Conference on Wireless communications, networking and mobile computingA new power management circuit which includes energy conversion sub-system (photovoltaic battery), energy storage sub-system(lithium-ion battery+ultracapacitor energy conversion sub-system) and power management sub-system is designed. The power ...
Design of Power Supply System for Field Wireless Sensor Network Nodes
IMCCC '12: Proceedings of the 2012 Second International Conference on Instrumentation, Measurement, Computer, Communication and ControlA simple power supply solution with solar energy photovoltaic cells is put forward for low-power field devices like wireless sensor network (WSN) nodes for environmental surveillance. In order to reduce the system's power loss and improve the efficiency ...
Comments