andrea massari · @linkedin-antiabuse - 11/02/2016 andrea massari w/ supply, inc. the antenna...

Charge your phone in your pocket

@LinkedIn-AntiAbuse - 11/02/2016

Andrea Massariw/ Supply, Inc.

The Antenna Landscape

Ever happened to you?

Using a phone while charging… !

Radio wireless charger

Supply, Inc.

How does it work?

charging power=0

"

Time elapsed: 1 ms

Antenna and phone begin to chat!

“dial”Time elapsed: 1 ms

Antenna and phone begin to chat!

The antenna begins to tweak the dial

now??Time elapsed: 1 ms

chargingpower=10

The antenna begins to tweak the dial

#

Time elapsed: 2 ms

now??Time elapsed: 2 ms

chargingpower=100

$

Time elapsed: 3 ms

Interference!

chargingpower=100

$

Time is ticking!UEX at risk!

Time elapsed: 3 ms

AND… it’s more than one phase…

#1

AND… it’s more than one phase…

#1#2

AND… it’s more than one phase…

#1#2#3

AND… it’s more than one phase…

#1

#5

#2#3#4

AND… it’s more than one phase…

#1

#8

#5

#7

#6

#2#3#4

AND… it’s more than one phase…

%

Optimization problem in 8-dim with #steps<1000

#1

#8

#5

#7

#6

#2#3#4

Please, Andrea…

Find a solution to the 8-dim optimization problem that:

Please, Andrea…

Find a solution to the 8-dim optimization problem that: 1. converge fast

Please, Andrea…

Find a solution to the 8-dim optimization problem that: 1. converge fast 2. work in any room

Please, Andrea…

Find a solution to the 8-dim optimization problem that: 1. converge fast 2. work in any room 3. work even with obstacles present

Please, Andrea…

Find a solution to the 8-dim optimization problem that: 1. converge fast 2. work in any room 3. work even with obstacles present

Charging power at ~4M randomly sampled points in the 8-dim feature space

The Data

So, what did I do?

Have a look at the landscape!

Charging power vs. (phase #1, phase #2)

phase #1

phase #2

room #1

(color = charging power at the receiver)

phase #1

phase #2

room #1

2 features out of 8 total

Charging power vs. (phase #1, phase #2)(color = charging power at the receiver)

room #2

How about we switch room?(color = charging power at the receiver)

phase #2

phase #1

1, 2, 3… same pattern!

room #3

(color = charging power at the receiver)

phase #2

phase #1

room #3

Let’s take advantage of this pattern!

phase #1

phase #2

charging power

room #3

room #3

Let’s take advantage of this pattern!

phase #1

phase #2

charging power

room #3

“flat direction” (actually 3 out of 8)

room #3

Let’s take advantage of this pattern!

phase #1

phase #2

charging power

room #3

“steep direction” (actually 5 out of 8)

room #3

phase #1

phase #2room #3

My recommendation:1. optimize along steep directions

5-dim

room #3

phase #1

phase #2room #3

My recommendation:1. optimize along steep directions2. adjust along flat directions

3-dim

room #3

8-dim 5-dim + 3-dim (faster!)

phase #1

phase #2room #3

8-dim

My delivery to Supply, Inc.

1. Analytics package, which finds a pattern

My delivery to Supply, Inc.

1. Analytics package, which finds a pattern 2. Proposed an algorithm to maximize charging power

My delivery to Supply, Inc.

1. Analytics package, which finds a pattern 2. Proposed an algorithm to maximize charging power 3. Works in any room and even with obstacles

My delivery to Supply, Inc.

1. Analytics package, which finds a pattern 2. Proposed an algorithm to maximize charging power 3. Works in any room and even with obstacles 4. Faster than blind gradient ascent by >20% (est.)

My delivery to Supply, Inc.

1. Analytics package, which finds a pattern 2. Proposed an algorithm to maximize charging power 3. Works in any room and even with obstacles 4. Faster than blind gradient ascent by >20% (est.) 5. Ensures continuous charging, good UEX!

1. Analytics package, which finds a pattern 2. Proposed an algorithm to maximize charging power 3. Works in any room and even with obstacles 4. Faster than blind gradient ascent by >20% (est.) 5. Ensures continuous charging, good UEX!

My delivery to Supply, Inc.

You won’t have to do this any more

about Andrea●

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101 102

100

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E [GeV]

PhotonCounts

DM DM → b b, mDM = 350 GeV, Einasto

-4 -2 0 2 4-4

-2

0

2

4

-4 -2 0 2 4-4

-2

0

2

4

-4 -2 0 2 4-4

-2

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Data

⟨σv⟩ = 3.2×10-25 cm3s-1

ℓ [° ]

b[°]

OptimizedEnergy Range

PhD, Physics 2016

Dark Matter…

BACK-UP SLIDES

Usual wireless charger

Usual wireless charger

Phone can be reached with a beam of radio waves

Phone can be reached with a beam of radio waves

charging power=100$

Interference!

http://www.falstad.com/ripple/

What if I move?

how’s it going?

1. Analytics package, which finds a pattern 2. Proposed an algorithm to maximize charging power 3. Works in any room and even with obstacles 4. Faster than blind gradient ascent by >20% (est.) 5. Ensures continuous charging, good UEX!

My delivery to Supply, Inc.