in this presentation to get the knowledge about the wireless power transmission in the power system. from this presentation easy to learn about the "How to power transfer without using the wire?" . To give the advantages , Disadvantages and the applications of the Wireless Power Transmission System.
in this presentation to get the knowledge about the wireless power transmission in the power system. from this presentation easy to learn about the "How to power transfer without using the wire?" . To give the advantages , Disadvantages and the applications of the Wireless Power Transmission System.
The scope of transmission of energy is now possible, all it needs is implementation. There is a lot of power loss due to wired mechanism. This ppt describes many possible solutions.
Witricity is the shortform of wireless electricity.it means we can transfer electricity without the use of wires. it can be used in many fields like household appliances,automobiles,electronic devices etc. By using witricity we can avoid the power losses occuring when transmission occurs.
Wireless power transfer, wireless power transmission, wireless energy transmission, or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link.
What is wireless power transmission(WPT)?
Why is WPT?
History of WPT
Types of WPT
Techniques to transfer energy wirelessly
Advantages and disadvantages
Applications
Conclusion
References
A lot of power is wasted due to wired mechanism which could be solved by wireless energy transmission throughout the world.
The advantages and some disadvantages are mentioned in the presentation.
The scope of transmission of energy is now possible, all it needs is implementation. There is a lot of power loss due to wired mechanism. This ppt describes many possible solutions.
Witricity is the shortform of wireless electricity.it means we can transfer electricity without the use of wires. it can be used in many fields like household appliances,automobiles,electronic devices etc. By using witricity we can avoid the power losses occuring when transmission occurs.
Wireless power transfer, wireless power transmission, wireless energy transmission, or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link.
What is wireless power transmission(WPT)?
Why is WPT?
History of WPT
Types of WPT
Techniques to transfer energy wirelessly
Advantages and disadvantages
Applications
Conclusion
References
A lot of power is wasted due to wired mechanism which could be solved by wireless energy transmission throughout the world.
The advantages and some disadvantages are mentioned in the presentation.
The term “fog computing” or “edge computing” means that rather than hosting and working from a centralized cloud, fog systems operate on network ends. It is a term for placing some processes and resources at the edge of the cloud, instead of establishing channels for cloud storage and utilization.
Wireless power transmission technology is not a new technology. In 1980, it was demonstrated by Nikola Telsa. ... The name wireless power transmission states the transfer of electrical power from a source to an electrical device without the help of wires. Basically, it involves two coils: a transmitter and a receiver coil.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
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Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
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GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
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https://arxiv.org/abs/2306.08302
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https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Welocme to ViralQR, your best QR code generator.ViralQR
Welcome to ViralQR, your best QR code generator available on the market!
At ViralQR, we design static and dynamic QR codes. Our mission is to make business operations easier and customer engagement more powerful through the use of QR technology. Be it a small-scale business or a huge enterprise, our easy-to-use platform provides multiple choices that can be tailored according to your company's branding and marketing strategies.
Our Vision
We are here to make the process of creating QR codes easy and smooth, thus enhancing customer interaction and making business more fluid. We very strongly believe in the ability of QR codes to change the world for businesses in their interaction with customers and are set on making that technology accessible and usable far and wide.
Our Achievements
Ever since its inception, we have successfully served many clients by offering QR codes in their marketing, service delivery, and collection of feedback across various industries. Our platform has been recognized for its ease of use and amazing features, which helped a business to make QR codes.
Our Services
At ViralQR, here is a comprehensive suite of services that caters to your very needs:
Static QR Codes: Create free static QR codes. These QR codes are able to store significant information such as URLs, vCards, plain text, emails and SMS, Wi-Fi credentials, and Bitcoin addresses.
Dynamic QR codes: These also have all the advanced features but are subscription-based. They can directly link to PDF files, images, micro-landing pages, social accounts, review forms, business pages, and applications. In addition, they can be branded with CTAs, frames, patterns, colors, and logos to enhance your branding.
Pricing and Packages
Additionally, there is a 14-day free offer to ViralQR, which is an exceptional opportunity for new users to take a feel of this platform. One can easily subscribe from there and experience the full dynamic of using QR codes. The subscription plans are not only meant for business; they are priced very flexibly so that literally every business could afford to benefit from our service.
Why choose us?
ViralQR will provide services for marketing, advertising, catering, retail, and the like. The QR codes can be posted on fliers, packaging, merchandise, and banners, as well as to substitute for cash and cards in a restaurant or coffee shop. With QR codes integrated into your business, improve customer engagement and streamline operations.
Comprehensive Analytics
Subscribers of ViralQR receive detailed analytics and tracking tools in light of having a view of the core values of QR code performance. Our analytics dashboard shows aggregate views and unique views, as well as detailed information about each impression, including time, device, browser, and estimated location by city and country.
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UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
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Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
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Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
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Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
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UI automation Introduction,
UI automation Sample
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Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
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Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
2. Contents
• WHAT IS WIRELESS
POWER
TRANSMISSION(WPT)?
• WHY IS WPT?
• HISTORY OF WPT
• TYPES OF WPT
Techniques to transfer
energy wirelessly
• Applications
• ADVANTAGES AND
DISADVANTAGES
• CONCLUSION
• REFERENCES
2
3. What is Wireless Energy Transmission?
The transmission of energy from one place to another without using
wires
Energy transfer is using wires
But, the wireless transmission is made possible by using various
technologies
3
4. Why not wires?
As per studies, most electrical energy transfer is through wires.
Most of the energy loss is during transmission
• On an average, more than 30%
• In India, it exceeds 40%
4
5. Why Wireless Energy Transmission?
Reliable
Efficient
Fast
Low maintenance cost
Can be used for short-range or long-range.
5
6. Nikola Tesla’s
Demonstration
In 1891, Nikola Tesla gave a
lecture for the members of the
American Institute of Electrical
Engineers in New York City.
Using glass discharge tubes for
his experiment.
The tubes were not connected
to any wires.
He went on to speculate how one
might increase the scale of this
effect to transmit wireless
power.
6
9. Energy Coupling
The transfer of energy
Magnetic coupling
Inductive coupling
Simplest Wireless Energy coupling
is a transformer
9
10. Air Ionization Experiment
In 1899 Sir NICOLA TESLA and
HEINRICH HERTZ powered a fluorescent
lamp keeping it 25 miles away from source
without using wire.
A high potential transmitter transmits an
“electromotive impulse” through the
ionized path to the upper atmosphere
where it ionizes the air, and this air
between the transmitter and receiver
would conduct like a neon tube .
10
12. Techniques for
wireless
Transmission of
Power
NEAR-FIELD
TECHNIQUES
• INDUCTIVE COUPLING
• RESONANT INDUCTIVE COUPLING
FAR-FIELD
TECHNIQUES
• MICROWAVE POWER
TRANSMISSION(MPT)
• LASER POWER TRANSMISSION(LPT)
12
13. Inductive Coupling Method
• Primary and secondary coils are not
connected with wires.
• Energy transfer is due to Mutual
Induction
13
14. Inductive Coupling(Contd..)
Transformer is also an example
Energy transfer devices are usually through air.
Wireless Charging Pad(WCP),electric brushes are some examples
On a WCP, the devices are to be kept, battery will be automatically
charged.
14
15. Resonant Inductive Coupling
• Combination of inductive coupling and resonance
• Resonance makes two objects interact very strongly inductance induces
current
• Inductance induces current
15
16. Resonant Inductive Coupling(Contd…)
• Coil provides the inductance
• Capacitor is connected parallel to the
coil
• Energy will be shifting back and forth
between magnetic field surrounding
the coil and electric field around the
capacitor
• Radiation loss will be negligible
16
18. Microwave Transmission Method
Transfers high power from one place to another. Two places being in line
of sight usually
Steps:
Electrical energy to microwave energy
Capturing microwaves using rectenna
Microwave energy to electrical energy
18
20. Microwave
Power
Transmission
(Contd….)
• AC CAN NOT BE DIRECTLY
CONVERTED TO MICROWAVE
ENERGY
• AC IS CONVERTED TO DC
FIRST
• DC IS CONVERTED TO
MICROWAVES USING
MAGNETRON
• TRANSMITTED WAVES ARE
RECEIVED AT RECTENNA
WHICH RECTIFIES, GIVES DC
AS THE OUTPUT
• DC IS CONVERTED BACK TO
AC
20
21. Rectenna
It is a rectifying antenna
Microwaves are received with about 95%
efficiency
Converts microwave energy into DC
Consists of mesh of dipole antennas
21
22. LASER Transmission Method
LASER is highly directional, coherent
Not dispersed for very long
But, gets attenuated when it propagates through atmosphere
Simple receiver
Photovoltaic cell
Cost-efficient
22
23. Laser (Contd…)
In the case of electromagnetic radiation
closer to visible region of spectrum (10s of
microns(um) to 10s of nm), power can be
transmitted by converting electricity into a
laser beam that is then pointed at a solar cell
receiver. This mechanism is generally known
as "power beaming" because the power is
beamed at a receiver that can convert it to
usable electrical energy.
23
25. Wireless Electricity-
WiTricity
• BASED ON RIC
• LED BY MIT’S MARIN
SOLJAČIĆ
• ENERGY TRANSFER
WIRELESSLY FOR A
DISTANCE JUST MORE THAN
2M.
• COILS WERE IN HELICAL
SHAPE
• NO CAPACITOR WAS USED
• EFFICIENCY ACHIEVED WAS
AROUND 40%
25
26. WiTricity contd…
WiTricity experimented to power
incandescent bulb kept few meters away.
WiTricity experimented to power
incandescent bulb kept few
meters away with a obstacle.
26
27. WiTricity Now
No more helical coils
Companies like Intel are also working on devices that make use of RIC
Researches for decreasing the field strength
Researches to increase the range
27
29. WiTricity Corporation products
WiTricity Corporation plans to
operate each and every
household electronic gadgets
with wireless energy control
techniques
29
30. Air Ionisation
Toughest technique under near-field energy transfer
techniques
Air ionizes only when there is a high field
Needed field is 2.11MV/m
Natural example: Lightening
Not feasible for practical implementation
30
31. RIC vs Inductive Coupling
RIC is highly efficient
RIC has much greater range than inductive coupling
RIC is directional when compared to inductive coupling
RIC can be one-to-many. But usually inductive coupling is one-to-one
Devices using RIC technique are highly portable
31
32. Advantages of Near-Field Techniques
No wires
No e-waste
Need for battery is eliminated
Efficient energy transfer using RIC
Harmless, if field strengths under safety levels
Maintenance cost is less
32
33. Disadvantage
Distance constraint
Field strengths have to be under safety levels
Initial cost is high
In RIC, tuning is difficult
High frequency signals must be the supply
Air ionization technique is not feasible
33
34. Laser vs Microwave Power Transmission
When LASER is used, the antenna sizes can be much smaller
Microwaves can face interference (two frequencies can be used for
WPT are 2.45GHz and 5.4GHz)
LASER has high attenuation loss and also it gets diffracted by
atmospheric particles easily
34
35. Advantages of far-field energy transfer
Efficient
Easy
Need for grids, substations etc are eliminated
Low maintenance cost
More effective when the transmitting and receiving points are along a line-of-sight
Can reach the places which are remote
35
36. Disadvantages of a far-field energy
transfer
Radiative
Needs line-of-sight
Initial cost is high
When LASERs are used,
conversion is inefficient
Absorption loss is high
When microwaves are used,
interference may arise
FRIED BIRD effect
36
37. Conclusion
Transmission without wires- a reality
Efficient
Low maintenance cost. But, high initial cost
Better than conventional wired transfer
Energy crisis can be decreased
Low loss
In near future, world will be completely wireless
37
38. References
S. Sheik Mohammed, K. Ramasamy, T. Shanmuganantham,” Wireless power transmission –
a next generation power transmission system”, International Journal of Computer
Applications (0975 – 8887) (Volume 1 – No. 13)
Peter Vaessen,” Wireless Power Transmission”, Leonardo Energy, September 2009
C.C. Leung, T.P. Chan, K.C. Lit, K.W. Tam and Lee Yi Chow, “Wireless Power Transmission
and Charging Pad”
David Schneider, “Electrons unplugged”, IEEE Spectrum, May 2010
Shahrzad Jalali Mazlouman, Alireza Mahanfar, Bozena Kaminska, “Mid-range Wireless
Energy Transfer Using Inductive Resonance for Wireless Sensors”
Chunbo Zhu, Kai Liu, Chunlai Yu, Rui Ma, Hexiao Cheng, “Simulation and Experimental
Analysis on Wireless Energy Transfer Based on Magnetic Resonances”, IEEE Vehicle
Power and Propulsion Conference (VPPC), September 3-5, 2008
38
39. References(contd…)
André Kurs, Aristeidis Karalis, Robert Moffatt, J. D. Joannopoulos, Peter Fisher
and Marin Soljačić, “Wireless Power Transfer via Strongly Coupled Magnetic
Resonances”, Science, June 2007
T. R. Robinson, T. K. Yeoman and R. S. Dhillon, “Environmental impact of high
power density microwave beams on different atmospheric layers”,
White Paper on Solar Power Satellite (SPS) Systems, URSI, September 2006
Richard M. Dickinson, and Jerry Grey, “Lasers for Wireless Power Transmission”
S.S. Ahmed, T.W. Yeong and H.B. Ahmad, “Wireless power transmission and its
annexure to the grid system”
39