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Environmentally Harvested Energy Powers Battery-Free Wireless Sensor Networks

Location tracking, condition monitoring, environmental monitoring,  industrial controls, and building automation systems use wireless sensor networks (WSNs) that are powered by energy harvested from the environment and do not use batteries.

Pierre Mars Ltd will give a presentation at both Storage Europe and Sensors Expo during Jume 7 to 9, 2010, at Rosemont, IL, and the IDTechEx Energy Harvesting and Storage Europe to be held at Munich, Germany, on May 28, 2101, on issues related to challenges of power management of such WSNs.

Mars will also conduct a training session regarding super capacitors’ role and the use of super capacitors to bridge the power gap between peak power applications and energy harvesters at the Rosemont seminar. Randy Frank, an industry expert, will be the moderator for this seminar that will focus on technologies for energy harvesting and various system issues like advanced batteries, high efficiency, wireless connectivity and low power microcontrollers. During the Rosemont event at the energy harvesting track on June 9, Mars will make a presentation on using super capacitor for wireless sensor’s power management and power harvesting by using a small solar cell.

March will teach the super capacitor’s role during the master class on Energy storage in the Munich event. At this event led by Raghu Das, Chief Analyst and CEO of IDTechEx, this class will evaluate the energy storage options like batteries (covering secondary, thin film and flexible batteries), super-cabatteries and ultra capacitors (super capacitors).

Mars, an IEEE member and a published authority on space-constrained electronics gadgets’ power management architectures, is now jointly holding three patents related to applications of super capacitors. He has also held management posts at Honeywell Industrial Control, Racal Defense Electronics, CAT Pty Ltd and Chubb Electronic Security.

It is possible to eliminate batteries and related costs and replacement efforts by utilizing harvested energy from the environment. Environmental energy sources like RF, piezo electric, photovoltaic and vibration are however low power systems typically and thus fall short of delivering the required peak power for relaying data across wireless networks like GSM/GPRS, Zigbee or IEEE 802.15.4 and WLAN or 802.11.

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