Have you faced problems of incorrect readings in displays, flickering of tubelights etc. Do you know, electrical pollution can be harmful for our lives also?
The Energy Smart Unit connects to your breaker box at home or at the office and reuses wasted electricity to save you money on your electric bill!
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what is producer gas?
Typical components of producer gas
Tar classification
Types of Biomass
GENERAL METHOD BIOMASS PRODUCER GAS CLEANING SYSTEM
Classification of mechanical/physical gas cleaning systems.
ADVANCE CLEANNING SYSTEM
how to clean producer gas from the system
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We invent, innovate, and commercialize technologies to repower our world with clean advanced energy.
The attached pdf is an overview introduction of LST Energy Co. and its Electronic Enhancement of Solar Cells (EESC) innovative tecnology overview keynote pdf version
Have you faced problems of incorrect readings in displays, flickering of tubelights etc. Do you know, electrical pollution can be harmful for our lives also?
The Energy Smart Unit connects to your breaker box at home or at the office and reuses wasted electricity to save you money on your electric bill!
You can also qualify for a $1,500 tax credit for installing a green item in your home or business
what is producer gas?
Typical components of producer gas
Tar classification
Types of Biomass
GENERAL METHOD BIOMASS PRODUCER GAS CLEANING SYSTEM
Classification of mechanical/physical gas cleaning systems.
ADVANCE CLEANNING SYSTEM
how to clean producer gas from the system
Overview introduction of LST Energy Co. and its Electronic Enhancement of Sol...Erik Fulkerson
We invent, innovate, and commercialize technologies to repower our world with clean advanced energy.
The attached pdf is an overview introduction of LST Energy Co. and its Electronic Enhancement of Solar Cells (EESC) innovative tecnology overview keynote pdf version
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Hidden Household Expenses Associated with HomeownershipNick Schaeffer
When you own a home, it’s easy for household expenses to spiral out of control. Every year, the average homeowner is in the unenviable position of spending thousands of dollars on owning and maintaining a
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You use it every day, but do you really understand electricity? It’s important, because, without understanding electricity, it’s hard to maintain electrical safety in your home. In order to understand electricity, you basically need to grasp five key concepts; we like to call them the five hidden mysteries of electricity.
Webinar: High Voltage Fiber Optic (HVFO) Probe for Small Signal Floating Meas...teledynelecroy
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The mHealth “revolution” has promised to deliver in-home healthcare that parallels the care we might receive in a physician’s office. However, the panacea of digital health has proven to be more problematic and messy than its vision, especially for collecting and interpreting medical quantities from the home. In this talk I will discuss several successful projects for sensing medical quantities from a mobile phone using the embedded sensors (i.e., camera, microphone, accelerometer) and how these projects can increase compliance as well as enhance doctor patient relationships. I will focus on the reliability and calibration of the sensing and the role of computer scientists and engineers in the future of mHealth.
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Discover the innovative and creative projects that highlight my journey through Full Sail University. Below, you’ll find a collection of my work showcasing my skills and expertise in digital marketing, event planning, and media production.
The world of search engine optimization (SEO) is buzzing with discussions after Google confirmed that around 2,500 leaked internal documents related to its Search feature are indeed authentic. The revelation has sparked significant concerns within the SEO community. The leaked documents were initially reported by SEO experts Rand Fishkin and Mike King, igniting widespread analysis and discourse. For More Info:- https://news.arihantwebtech.com/search-disrupted-googles-leaked-documents-rock-the-seo-world/
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As an Army veteran dedicated to lifelong learning, I bring a disciplined, strategic mindset to my pursuits. I am constantly expanding my knowledge to innovate and lead effectively. My journey is driven by a commitment to excellence, and to make a meaningful impact in the world.
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Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...
Sensing for Sustainability: Disaggregated Sensing of Electricity, Gas, and Water
1. Sensing for Sustainability
disaggregated sensing of water, electricity, and natural gas
University of Washington
Eric Larson
PhD Candidate in School of Electrical and Computer Engineering
UbiComp Lab
electrical
engineering
computer
science
presented at
December 7th, 2012
Saturday, December 8, 12
38. ophone Senses
Gas Hissing Filters Background Noise
How It Works
Gas Appliance in
Home is Turned On
Microp
Ga
Regulator Hisses
When Gas Flows
Saturday, December 8, 12
39. ophone Senses
Gas Hissing Filters Background Noise
How It Works
Gas Appliance in
Home is Turned On
Microp
Ga
Regulator Hisses
When Gas Flows
Saturday, December 8, 12
50. Evaluated system in nine homes
496 staged gas events from 6 appliance types
Saturday, December 8, 12
51. Evaluated system in nine homes
496 staged gas events from 6 appliance types
321 trials used in compound
Saturday, December 8, 12
52. Evaluated system in nine homes
496 staged gas events from 6 appliance types
321 trials used in compound
~95% accuracy
Saturday, December 8, 12
53. Evaluated system in nine homes
496 staged gas events from 6 appliance types
321 trials used in compound
~95% accuracy
~87% accuracy, minimal calib.
Saturday, December 8, 12
54. sor Shwetak N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SNUPI
ense
mart
GasSense
uToSNUPI
GasSense
HydroSense
ElderCare
Mobility
Rehabilitation
HydroSense
Saturday, December 8, 12
55. sor Shwetak N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SNUPI
ense
mart
GasSense
uToSNUPI
GasSense
HydroSense
ElderCare
Mobility
Rehabilitation
HydroSense
Saturday, December 8, 12
56. mplabN G T O N
N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SqueezeBlock
LightW
GripSe
Saturday, December 8, 12
60. switching generates high frequency Electro
Magnetic Interference (EMI)
Supply
Load
Inductor
EMI
Switched Mode Power Supply
Saturday, December 8, 12
66. capture system
any electrical
outlet
Power Line
Interface
(High Pass Filter)
Corner frequency: 36.7 kHz
Flat response: 50 kHz - 30 MHz
High voltage capacitors for
isolation
Saturday, December 8, 12
67. capture system
any electrical
outlet
Power Line
Interface
(High Pass Filter)
Digitizer
&
Frequency Transform
Corner frequency: 36.7 kHz
Flat response: 50 kHz - 30 MHz
High voltage capacitors for
isolation
Sampling Frequency: 1 MHz
ADC: 12-bits
FFT width: 4096
Bin width: 244 Hz
Saturday, December 8, 12
68. capture system
any electrical
outlet
Power Line
Interface
(High Pass Filter)
Digitizer
&
Frequency Transform
Event Processor
&
Classifier
Corner frequency: 36.7 kHz
Flat response: 50 kHz - 30 MHz
High voltage capacitors for
isolation
Sampling Frequency: 1 MHz
ADC: 12-bits
FFT width: 4096
Bin width: 244 Hz
Saturday, December 8, 12
81. Evaluated system in seven homes
2576 staged electrical events
Saturday, December 8, 12
82. Evaluated system in seven homes
2576 staged electrical events
10-20 devices per home
Saturday, December 8, 12
83. Evaluated system in seven homes
2576 staged electrical events
10-20 devices per home
~94% accuracy
Saturday, December 8, 12
84. Evaluated system in seven homes
2576 staged electrical events
10-20 devices per home
~94% accuracy
~89% accuracy, minimal calib.
Saturday, December 8, 12
88. sor Shwetak N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SNUPI
ense
mart
GasSense
uToSNUPI
GasSense
HydroSense
ElderCare
Mobility
Rehabilitation
HydroSense
Saturday, December 8, 12
89. sor Shwetak N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SNUPI
ense
mart
GasSense
uToSNUPI
GasSense
HydroSense
ElderCare
Mobility
Rehabilitation
HydroSense
Saturday, December 8, 12
90. U N I V E R S I T Y O F WA S H I N G T O N
Professor Shwetak N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SNUPI
Static E-
CoughSense
SpiroSmart
ElderCare
Lullaby
Mobility
Rehabilitation
GasSense
HydroSense
InnerSol
Saturday, December 8, 12
100. hydrosense sensor stream
water tower
water tower
thermal
expansion
tank
hose
spigot
utility water
meter
pressure
regulator
laundry
bathroom 1
hot
water
heater bathroom 2
dishwasher
incoming cold
water from
supply line
kitchen
Saturday, December 8, 12
101. Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, Citeseer (2009), 235–244.
hydrosense sensor stream
Saturday, December 8, 12
102. 10 psi
Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, Citeseer (2009), 235–244.
hydrosense sensor stream
Saturday, December 8, 12
103. 10 psi
7.32 psi
Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, Citeseer (2009), 235–244.
hydrosense sensor stream
Saturday, December 8, 12
104. 10 psi
7.32 psi
Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, Citeseer (2009), 235–244.
hydrosense sensor stream
15 Hz
Saturday, December 8, 12
105. 10 psi
7.32 psi
Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, Citeseer (2009), 235–244.
hydrosense sensor stream
15 Hz
200 ms
Saturday, December 8, 12
106. 10 psi
7.32 psi
Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, Citeseer (2009), 235–244.
hydrosense sensor stream
15 Hz
200 ms
kitchen sink
Saturday, December 8, 12
107. 10 psi
7.32 psi
Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, Citeseer (2009), 235–244.
hydrosense sensor stream
15 Hz
200 ms
kitchen sink
upstairs toilet
downstairs toilet
Saturday, December 8, 12
108. 10 psi
7.32 psi
Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, Citeseer (2009), 235–244.
hydrosense sensor stream
15 Hz
200 ms
kitchen sink kitchen sink hot
upstairs toilet
downstairs toilet
cold
Saturday, December 8, 12
128. totals
days
33
33
30
27
33
156
events
2374
3075
4754
2499
2578
14,960
events/day
71.9
93.2
158.5
92.6
78.1
95.9
compound
22.2%
21.8%
16.6%
32%
21.3%
21.9%
data collection
Larson, E., Froehlich, J., Saba, E., et al. A Longitudinal Study of Pressure Sensing to Infer Real- World Water Usage
Events in the Home. Pervasive Computing, Springer (2011), 50–69.
Saturday, December 8, 12
141. sor Shwetak N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SNUPI
ense
mart
GasSense
uToSNUPI
GasSense
HydroSense
ElderCare
Mobility
Rehabilitation
HydroSense
Saturday, December 8, 12
142. sor Shwetak N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SNUPI
ense
mart
GasSense
uToSNUPI
GasSense
HydroSense
ElderCare
Mobility
Rehabilitation
HydroSense
future work
Saturday, December 8, 12
159. Sensing for Sustainability
disaggregated sensing of water, electricity, and natural gas
University of Washington
Eric Larson
PhD Candidate in School of Electrical and Computer Engineering
UbiComp Lab
electrical
engineering
computer
science
eclarson.com
eclarson@uw.edu
@ec_larson
presented at
December 7th, 2012
ubicomplabU N I V E R S I T Y O F WA S H I N G T O N
Professor Shwetak N. Patel Computer Science
& Engineering
Electrical
Engineering
design + use +
build
ElectriSense InGen
SNUPI
Static E-Fiel
CoughSense
SpiroSmart
ElderCare
Mobility
Rehabilitation
GasSense
HydroSense
ElectriSense InGen
uTouch
WalkTy
SNUPI
Static E-Field
CoughSense
SpiroSmart
ElderCare
Lullaby
Mobility
Rehabilitation
GasSense
HydroSense
InnerSol
CoughSense
ElderCare
Lullaby
Mobility
Rehabilitation
GasSense
HydroSense
InnerSol
Gabe Cohn Sidhant Gupta Jon Froehlich
Saturday, December 8, 12
