Wireless Sensing by Passive Radiofrequency Identification: Research, Systems and Applications
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Transcript of Wireless Sensing by Passive Radiofrequency Identification: Research, Systems and Applications
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www.radio6ense.com
A Spinoff of the University of Roma Tor Vergata
Wireless Sensing by Passive Radiofrequency Iden8fica8on
Research, Systems and Applica<ons
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Mission!
RADIO6ENSE is a spin-‐off of the University of Roma "Tor Vergata", aiming at developing short-‐range distributed RFID sensing technology to discreetly measure and quanAfy our interacAon with things and with the surrounding spaces. RADIO6ENSE's products and services provide the last 10 meters of the emerging Internet of Things, enabling Cloud Services to interact with the real World. RADIO6ENSE offers hardware and soIware soluAons addressed to System Integrators, Engineers, Consultancy companies, Public and Private Agencies, as well as End Users willing to introduce the RFID Sensing Technology inside their own processes and work-‐flows.
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Products & Services!
Products Ad-‐hoc RFID baRery-‐less radio sensors
• Wearable tags • Temperature sensors
Sensing PlaSorms
• RadioScan Kit • NightCare: sleep Monitoring
System
Services • Technology Development • RFID Network Planning • ElectromagneAc Exposure • Antenna design • RFID Privacy • Training
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Products & Services!
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Research & Engineering
MARKET
Research, Prototypes, Papers, Patents
Technology Development, Services
Challenges
www.pervasive.ing.uniroma2.it
www.radio6ense.com
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6
• Positive interaction of classic Electromagnetics with Materials Science, Computer Science, Sensors, Medicine, Mechanics and Electronics
• Short-range sensing by autonomous devices
• Internet of Things
• Distributed antenna systems for naval, avionics and satellite communication.
ELECTRONICS
MECHANICS
COMPUTER SCIENCE
MATERIALS
PERVASIVE ELECTROMAGNETICS
Antenna modeling & design
PropagaAon & Planning
SIGNAL PROCESSING
STRUCTURES
Pervasive Electromagnetics!
www.pervasive.ing.uniroma2.it
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RF Structural Systems: !Antenna design, EMC, Coverage!
ESA Nanosat (2010) Plug&Play Satellite Avionics (2013)
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Mobile Access (10-‐1000m)
Sensing Labels
The Cloud
The Short Range (the last 10m)
The Real World
Internet of Things!
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Radiofrequency Identification !(RFID)!
Tag
antenna
Micro chip
energy
data
clock
data
• PASSIVE (batteryless) devices: Tags do not include a battery; the required power is supplied wireless by the reader."
• BACKSCATTERING: Tags reflect the reader's signal right back, modulating the query signal to transmit data. "
Reader
ID
ID
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Sensing: give a “state” to an object
Labeling: give an ID to an object
From Labeling to Sensing!
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Tech & Apps!
Systems • Human Tracking • Structural Health Monitoring • Equipment diagnos8cs
Technologies • Shape Memory Alloys • Carbon Nanotubes • SensiAve Polymers • TexAle & ElasAc Substrates • Mechanical Switches • Machine learning classificaAon
Parameters under test • Humidity • Temperature • Gases • DeformaAons & Displacements
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RADIOScan Kit!
• USB UHF reader • 0dB W EIRP • IdenAficaAon and
Temperature baRery-‐less sensors
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RADIOScan Kit!
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RADIOScan Kit!
Single and mulA tags measurements
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RADIOScan Kit!
Object Temperature [°C]
2D and 3D data acquisiAon and representaAon
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• The Wearable Tags are passive UHF RFID tags suitable to operate in close proximity of the human body.
• The lightweight materials and the small sizes allow them to be placed in
ü badge necklace ü wallets ü pockets or pursues ü Smart plasters, wristbands, clothes, sport suits and
garments in general.
• On request, RADIO6ENSE is available to customize the size, material and the shape of the wearable tags according to the specific applicaAons.
Wearable RF Tags
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Tags of different sizes and shapes produced by radio6ense can achieve up to 6 meters read range enabling a robust monitoring in a 4x4 m room with a single reader.
Reader
Wearable RF Tags -‐ read ranges
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Reader
W-tags
• Ambient Intelligence system able to monitor the parameters of sleep quality and to idenAfy anomalous events and prompt for remote or local assistance
• The system analyzes the interacAons of the person with the surrounding environment (bed, carpets, ..) by passive wearable Tags
Body-postures
Wearable RF Tags -‐ The NIGHTcare System
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Battery-less !Temperature sensors!
!
• Instantaneous temperature
• Surface Temperature
• Interior Temperature
• No Battery
• Conformal Placement
• No RF emission
Conformal sensors In-‐depth sensors
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Temperature Sensing!- curing concrete!
environment hea<ng recovery
Error < 0.5°C
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velocity V1<V2<V3. V3=1350rpm=22.5Hz Hair dryer for heaAng up the tag.
v1
v2
Temperature Sensing!- moving objects!
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Temperature Sensing!- 2D Imaging!
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Temperature Sensing!- 3D Imaging!
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• Structural Health Monitoring (houses, tunnels, bridges) • Industrial infrastructure in general (pipes, instruments, factories) • Hi-‐tech mechanic • Cold-‐chain integrity for food and drugs • Home automaAon and demoAc • Human temperature control
Temperature Sensing -‐ ApplicaAons (I)
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Industrial Process and energy efficiency T-‐tags spread inside complex systems, to monitor thermal state of payload and cri8cal components
RFID reader
RFID reader
T-‐tags spread in an industrial environment to monitor the temperature of different components of an automated machine
Temperature Sensing -‐ ApplicaAons (II): Industrial DiagnosAc
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Humidity and Gases!
Chemical Interac8ng Materials: -‐ Pedot:PSS -‐ Carbon Nanotube -‐ PDAC -‐ Doped PSS
RH S8mulus
RFID Response
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Displacements & Strain!
The mutual shi\ of a metallic selector over a slo]ed patch antenna will produce a measurable change of the RF response, corresponding to local displacement
Resolution: 50-100µm (Low-cost COTS reader) 10-20µm (Dedicated COTS reader)
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www.radio6ense.com
Università degli Studi di Roma "Tor Vergata" DiparAmento di Ingegneria Civile ed Ingegneria InformaAca Via del Politecnico 1 00133 Roma c.f. / P.IVA 12270181006
Ref. Prof. Gaetano MARROCCO [email protected], 06 72597418 Dr. Cecilia OCCHIUZZI [email protected], 06 72597458