6533b7d2fe1ef96bd125f763

RESEARCH PRODUCT

A Battery-Free Smart Sensor Powered with RF Energy

Patrizia LivreriR. La RosaC. A. Di CarloGino SorbelloGiulio ZoppiL. Di Donato

subject

Computer Networks and CommunicationsComputer scienceInternet of ThingsEnergy Engineering and Power TechnologyRadio Frequency HarvestingIndustrial and Manufacturing EngineeringArtificial IntelligenceWireless Battery ChargerWirelessRenewable EnergyWireless power transferInstrumentationSustainability and the Environmentbusiness.industryRF power amplifierTransmitterElectrical engineeringComputer Science Applications1707 Computer Vision and Pattern RecognitionInternet of Things; Litium Ion Battery; Radio Frequency Harvesting; Wireless Battery Charger; Wireless Power Transfer; Wireless Sensor Networks; Artificial Intelligence; Computer Networks and Communications; Computer Science Applications1707 Computer Vision and Pattern Recognition; Energy Engineering and Power Technology; Renewable Energy Sustainability and the Environment; Industrial and Manufacturing Engineering; InstrumentationSensor nodeLitium Ion BatteryWireless Power TransferRadio frequencyInternet of ThingWireless Sensor NetworksbusinessEnergy harvestingWireless sensor network

description

The development of Internet of Things (IoT) infrastructure and applications is stimulating advanced and innovative ideas and solutions, some of which are pushing the limits of state-of-the-art technology. The increasing demand for Wireless Sensor Network (WSN) that must be capable of collecting and sharing data wirelessly while often positioned in places hard to reach and service, motivates engineers to look for innovative energy harvesting and wireless power transfer solutions to implement battery-free sensor nodes. Due to the pervasiveness of RF (Radio Frequency) energy, RF harvesting that can reach out-of-sight places could be a key technology to wirelessly power IoT sensor devices, which in order to be ubiquitous, need to be wireless, maintenance-free, battery-free and low cost enough to be used almost anywhere. In this article the implementation of an RF power transfer system for battery-free wireless sensor nodes will be shown. The system comprises an RF power transmitter which delivers a power of 0.5 W at 900 MHz and an RF energy harvesting which is used as an RF power receiver to power a battery-free sensor node. Experimental results will show how the system can feed a 10 mA load for a 50 ms acquisition time with the transmitted power delivered from several distances.

yearjournalcountryeditionlanguage
2018-09-012018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)
https://doi.org/10.1109/rtsi.2018.8548509