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Long range battery-less PV-powered RFID tag sensors
- Source :
- IEEE Internet of Things Journal, arXiv
- Publication Year :
- 2019
-
Abstract
- Communication range in passive radio-frequency identification (RFID) front-end devices is a critical barrier in the real-world implementation of this low-cost technology. Purely passive RFID tags power up by harvesting the limited RF energy transmitted by the interrogator, and communicate by backscattering the incident signal. This mode of communication keeps manufacturing costs below a few cents per tag, but the limited power available at the tag undermines long-range deployment. In this paper, we present an approach to use photovoltaics (PV) to augment the available energy at the tag to improve read range and sensing capabilities. We provide this extra-energy to the RFID integrated circuit (IC) using minimum additional electronics yet enabling persistent sensor-data acquisition. Current and emerging thin-film PV technologies have significant potential for being very low-cost, hence eliminating the barrier for implementation and making of PV-RFID wireless sensors. We reduce the long-range PV-RFID idea to practice by creating functional prototypes of: 1) a wireless building environment sensor to monitor temperature and 2) an embedded tracker to find lost golf balls. The read range of PV-RFID is enhanced eight times compared to conventional passive devices. In addition, the PV-RFID tags persistently transmit large volumes of sensor data (>0.14 million measurements per day) without using batteries. For communication range and energy persistence, we observe good agreement between calculated estimates and experimental results. We have also identified avenues for future research to develop low-cost PV-RFID devices for wireless sensing in the midst of the other competitive wireless technologies, such as Bluetooth, ZigBee, long range (LoRa) backscatter etc.
- Subjects :
- Signal Processing (eess.SP)
FOS: Computer and information sciences
Backscatter
Computer Networks and Communications
Computer science
020209 energy
Computer Science - Emerging Technologies
02 engineering and technology
01 natural sciences
7. Clean energy
law.invention
Bluetooth
Computer Science - Networking and Internet Architecture
law
0202 electrical engineering, electronic engineering, information engineering
FOS: Electrical engineering, electronic engineering, information engineering
Wireless
Electrical Engineering and Systems Science - Signal Processing
Networking and Internet Architecture (cs.NI)
business.industry
010401 analytical chemistry
Electrical engineering
0104 chemical sciences
Computer Science Applications
Identification (information)
Emerging Technologies (cs.ET)
Hardware and Architecture
Signal Processing
Radio frequency
business
Wireless sensor network
Energy (signal processing)
Information Systems
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- IEEE Internet of Things Journal, arXiv
- Accession number :
- edsair.doi.dedup.....b87c42e03d73b42f7fbe87ac02007ac7