andrea massari · @linkedin-antiabuse - 11/02/2016 andrea massari w/ supply, inc. the antenna...
TRANSCRIPT
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●
●
● ● ● ● ● ●
●●●●●●●●●●●●●●●●●●●●●●●●●●●●
●●●●●●●●●●●●●●
●●
●●●●●●●
●●●●
●
●●
●
●●
●●●●
●●
●
●●
●
●
●●●●
●
●●
●
●
●
●●
●
●
●●● ●
●
● ●
●
● ● ● ● ● ●
△△△△△△△△△△△△△△△△
△△△△△△△△
△△△△
△△△△△△△△△△△△△△
△△
△△△
△△△△
△△△△
△
△△
△
△△
△
△
△△
△△
△
△△
△
△
△
△△
△
△
△△
△
△
△
△△
△
△
△△
△ △
△
△ △
△
△ △ △ △ △ △
▽▽▽▽▽▽▽▽▽▽▽▽▽▽▽▽
▽▽▽▽▽▽▽▽
▽▽▽▽
▽▽▽▽▽▽▽▽▽▽▽▽▽▽
▽▽
▽▽▽▽▽▽▽
▽▽▽▽
▽
▽▽
▽
▽▽
▽▽▽▽
▽▽
▽
▽▽▽
▽
▽▽▽▽
▽
▽▽
▽
▽
▽▽▽
▽
▽▽▽
▽
▽▽
▽
▽
▽
▽▽▽▽▽
▽
▽
▽
▽
▽
▽
▽
▽▽
▽
▽
▽
▽
▽
▽▽▽▽▽▽▽▽▽
▽
▽▽▽▽
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
▼▼▼▼▼▼▼▼▼
101 102
100
101
102
103
104
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
0
2
4
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.