Wireless transmission of power
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This document summarizes Hatem Zeine's invention of wireless power transmission called COTA. Zeine worked on prototype development for a decade and was granted the first patent in 2007. COTA uses electromagnetic resonance to transmit electric power without wires up to a 30 foot range. It has applications for replacing wired power connections and is safe, automatic and eco-friendly. However, wireless transmission results in some signal loss and limited range.
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This ppt is about 5g wireless technology and its operation. very efficient presentation that helps the audience to understand easier.
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The document discusses the history and evolution of wireless technology. It begins by explaining how wireless devices no longer require wires to connect and have become popular. It then provides a brief overview of the early experiments with electromagnetic waves by Hertz and Bose in the late 1800s. Different types of modern wireless devices and technologies are also outlined, including portable computers, internet tablets, smartphones, Wi-Fi, Bluetooth, and radio. Advantages like mobility and easy installation are contrasted with disadvantages such as lower bandwidth speeds. The document concludes by noting how wireless technology has enabled increased productivity and applications while also becoming more accessible.
Li-Fi Technology
This document provides an overview of Li-Fi technology. It discusses how Li-Fi works by transmitting data through LED light bulbs that vary in intensity faster than the human eye can detect. The document outlines the history of Li-Fi development and its implementation which involves an emitter, RF driver, and power supply. It compares Li-Fi to Wi-Fi and lists applications such as in aircraft and hazardous environments. Advantages include larger bandwidth and security, while limitations are not working in the dark and light interference. Future developments could make Li-Fi an efficient alternative to radio-based wireless networks.
LI-FI Presentation
In this technology, light is passed through transmission channel as it is the fastest medium. It overcomes the defect of WI-FI as well. Transmission of data takes place through illumination. Using this, we can connect to several devices under a single LED light.
Li-fi Technology
Working,Implementation,Li-fi & Wi-fi Comparison,Applications, Advantages & Disadvantages are described in the slides.
Bluetooth technology
This document discusses Bluetooth technology. It begins by describing what Bluetooth is and how it works. Bluetooth allows wireless communication between devices within 10 meters of each other. It then covers the advantages of Bluetooth, such as eliminating cables, automatically connecting devices, and low power consumption. Potential disadvantages discussed include low data rates compared to infrared and an inability to connect more than one device at a time. The document concludes by suggesting that Bluetooth will continue improving and may eventually replace other wireless technologies.
226335 633858374451812775
The document summarizes Bluetooth technology, including how it works, its advantages and disadvantages, applications, and future outlook. Bluetooth allows wireless connection of devices within 10 meters, eliminating cables. It transmits on the 2.4 GHz band at speeds up to 721 Kbps and uses frequency hopping to avoid interference. Benefits include low cost, automatic connection setup, low power usage, and ability to transmit both voice and data. Disadvantages are limited to connecting one device at a time and lower data rates than infrared. The future of Bluetooth is presented as integrating with other wireless technologies like Wi-Fi.
Li-Fi a complete presentation
Li-Fi is a technology that uses light from LED bulbs to transmit data wirelessly. It provides a more efficient alternative to Wi-Fi by using visible light that has a much larger and underutilized spectrum than radio frequencies. Li-Fi works by varying the intensity of light from an LED faster than the human eye can detect to transmit digital signals. It has advantages over Wi-Fi like higher speed, more available spectrum, more security since light cannot pass through walls easily, and energy efficiency since it uses LED bulbs. Potential applications of Li-Fi include use in places where Wi-Fi is restricted like hospitals or aircraft.
Li fi technology
Li-Fi technology uses visible light communication to transmit data using LED bulbs that can be switched on and off faster than the human eye can detect. It was proposed by German physicist Harold Hass as a solution to limited radio spectrum capacity issues. Li-Fi provides better bandwidth, security, and data rates over Wi-Fi. It has applications for devices like laptops, smartphones and tablets to transmit data through light without interfering with existing radio technologies. The presentation discusses the history, working mechanism, advantages and limitations of Li-Fi compared to traditional Wi-Fi networks.
Presentation on li fi by vaishnavi khandelwal
Li-Fi is a wireless optical communication system that uses light-emitting diodes (LEDs) for transmission of data. It was first demonstrated by Professor Harald Hass at the University of Edinburgh in 2011. Li-Fi works by varying the rate at which LEDs flicker on and off, with higher rates representing 1s and lower rates representing 0s to transmit digital data. Key advantages of Li-Fi over Wi-Fi include higher speed, more available bandwidth, and more secure communication through an inability to penetrate walls.
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Wireless transmission of power
- 2. Technology changes its face every day. From Telephone to cellular phone, Analogue to touch screens and many more………..
- 3. One of such revolutionary aspects is the wireless transmission of signals. It sounds less Sci-Fi than once it was. Internet could be accessed without wired broadband using Wi-Fi, files can be easily transferred using wireless Bluetooth………
- 4. This idea became a brainchild of a physicist Hatem Zeine .It became an attempt to transmit even electric power wirelessly .He dreamed of it and designed it’s prototype by working for the delivery for about a decade. He commercialized the invention and filed his first patent in 2007
- 5. The technology was named COTA and announced on September 9 2013.It is the magic of Electromagnetic systems and Magnetic resonance
- 6. HATEM ZEINE
- 7. The prototype consists of a receiver to receive electric power and a transmitter of a PC tower size to transmit power. The COTA receiver is incredibly small technology that can be embedded on micro-chips making it ideal for use in even the smallest of devices. COTA can integrate into the battery itself without changing dimensions. THE RECEIVER.
- 8. This technology is almost similar to Wi- Fi and has a range of transmitting power for a distance of 30 feet. The signal could pass around and through the walls.
- 9. This extraordinary invention witnessed when Zeine charged an Apple iPhone 5 by putting transmitter over a distance of 30 feet.
- 10. APPLICATIONS: 1. This could replace the numerous wired power connections in sensitive facilities like oil and gas refineries by making fewer live cables lying around. 2. This is extremely safe for people, children and pets. 3. This turns ON only when devices are available and hibernates when not in use that prevents loss of power 4. It does not disrupt any other wireless signal like Wi-Fi and is also Eco friendly.
- 11. 1. Since it is a wireless device the signal losses are more and efficiency decreases. 2. It could not be used for a device out of range.
Editor's Notes
- HATEM ZEINE
- THE RECEIVER.