Nuno Borges Carvalho Passive Backscatter Sensors for IoT...
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Passive Backscatter Sensors for IoT applications Nuno Borges Carvalho Ricardo Correia Daniel Belo Felisberto Pereira
Transcript of Nuno Borges Carvalho Passive Backscatter Sensors for IoT...
Passive Backscatter Sensors for IoTapplications
Nuno Borges Carvalho
Ricardo Correia
Daniel Belo
Felisberto Pereira
IT- DETI – Universidade de Aveiro ([email protected])
Motivation
Page 2
Present Io“Things” Near future Io“Things”
IT- DETI – Universidade de Aveiro ([email protected])
Motivation Energy waste in IoT
Page 5
http://edna.iea-4e.org Source: 2016 data
Standby Energy
Battery Manufacturing
One battery per IoT device and replaced every 2nd year
IT- DETI – Universidade de Aveiro ([email protected])
Motivation Energy waste in IoT
Page 6
Standby Energy
Batteries take hundreds of years to decompose, posing a serious threat to the public health and
to the environment.
IT- DETI – Universidade de Aveiro ([email protected])
Market Solutions Power Consumption
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Type AAA CR2032 CR123A CR2
Material Alkaline LiMn02* Lithium Lithium
Voltage 3V 3V 3V 3V
Capacity 500 mAh 225 mAh 1500 mAh 800 mAh
0
10
20
30
40
50
60
0 50 100 150 200 250 300 350
Yea
rs
Transactions per day
AAA CR2032 CR123A CR2
IT- DETI – Universidade de Aveiro ([email protected])
Energy harvesting sources
Page 8
Wi-Fi
Radio and TV broadcast
GSM/Cellular
IT- DETI – Universidade de Aveiro ([email protected])
The Solution
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Backscatter
communications
Wireless Power
Transmission
Energy
Harvesting
LoRa – 60 mW to 400 mW Bluetooth – 5 mW to 90 mW WiFi – 50 mW to 1 W
• Remove the need of power for transmit / receive!
• Eliminate batteries!
Passive
IT- DETI – Universidade de Aveiro ([email protected])
Page 10
Backscatter
communications
Wireless Power
Transmission
Energy
Harvesting
SWIPTSimultaneous Wireless Information and Power Transfer
IT- DETI – Universidade de Aveiro ([email protected])
Our Solution – SWIPT backscatter
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Low Cost SDR Readers
Dummy Wireless Power Transmitters
Passive Sensors
IT- DETI – Universidade de Aveiro ([email protected])
Towards the FUTURE!!
Page 13
Passive Sensors Increase Data rate
Increase data rate and
enable WPT capabilities
2015 2017 2018 20192016
Increase frequency and
decrease size
Total size = 0.92 mm2
kbit/s Gbit/s
IT- DETI – Universidade de Aveiro ([email protected])
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Backscatter ambient backscatter
Spyridon N Daskalakis et all, “Spectrally Efficient 4-PAM Ambient FM Backscattering for Wireless
Sensing and RFID Applications”, to be presents in the next IMS2018 in Philadelphia
IT- DETI – Universidade de Aveiro ([email protected])
mmWave low power connectivity – Applications & Investors
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• Glaucoma
• Diabetes (track the blood
sugar levels – measure
glucose)
Extremely small, low power and cheap connectivity solution which can be embedded in every object
IT- DETI – Universidade de Aveiro ([email protected])
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Thank you very much for your attention
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