Estimote // Hardwired NYC // September 2014
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Transcript of Estimote // Hardwired NYC // September 2014
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Hardwired NYC - September 9, 2014
@stevecheney | Co-Founder and SVP Business Operations
Estimote Physics of Beacons & Positioning
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Estimote is the global leader in iBeacon solutions25,000+ developers are building on our hardware and software
platform
50+ employees in 2 offices: New York & Europe
Certified under Apple iBeacon program
$3.1 in funding YC Summer 2013 class
Shipping worldwide since August 2013
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Estimote Stickers - “Nearables”
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Virgin Atlantic @ Heathrow
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Smartphones are amazing…
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But…they’re not actually that smart
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They lack context on your immediate surroundings
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Physics and Beacon tech crash course
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Beacon broadcasting radiowaves
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Current in the wire creates magnetic field
wire
magnetic field
current
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AC current creates electromagnetic wave
oscillator
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2.4 Ghz ~ 13 cm
Electromagnetic waves
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Receiving radiowaves
Bluetooth antenna
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Digitalizing and decoding information
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iBeacon identification
B9407F30-F5F8-466E-AFF9-25556B57FE6D
12223
123
Proximity UUID: 128-bit unique identifier
Major: 16-bit unsigned integer
Minor: 16-bit unsigned integer
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Combining UUID with external content
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RSSI = Received Signal Strength Indicator
distance
received power
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Antenna radiation pattern
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Different antenna design
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Estimote Beacon antenna
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Bluetooth signals advertising
Every 100 or so ms
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RSSI variation
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iOS Core.location noise reduction
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Noise reasonsInterference Diffraction
Multipath Absorption
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Distance estimation
r = distance
I = power density ~ RSSI
P = broadcasted power
r = P
4 I
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Extended range & trialiteration
x1, y1
x2, y2
x3, y3
r1r2
r3
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Narrowed range & cell network
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Estimote Indoor Positioning SDK
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Estimote Indoor Positioning SDK