Touch screens
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This document provides an overview of different types of touchscreen technologies, including resistive, capacitive, infrared, and surface acoustic wave screens. Resistive screens work by using two electrically conductive layers that bend to register a touch. Capacitive screens store electrical charges in a grid of wires to detect touch input. Infrared screens detect interruptions in a pattern of light emitted by infrared LEDs. Surface acoustic wave screens use transducers and reflectors to detect where touch-generated waves are absorbed on the screen surface. The document aims to explain the basic functioning and history of different touchscreen technologies.
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Fingerprint scanners work by capturing an image of a fingerprint using either an optical sensor like in digital cameras or a capacitive sensor using electrical current. The scanner then compares the captured fingerprint pattern to stored fingerprint images to determine if there is a match. Capacitive scanners have an advantage over optical scanners in that they require the actual fingerprint ridges and valleys rather than just a light/dark pattern, making them harder to fool.
Rohan_Johari__0801EI121047
This document provides an overview of touchscreen technology, including its history, components, types, and pros and cons. It discusses how the first touchscreen was developed in the 1960s and key developments in the 1970s. It describes the components of a basic touchscreen system and the four main types of touch sensor technologies: resistive, capacitive, surface acoustic wave, and infrared. Each technology is explained and compared in terms of durability, response time, advantages, and disadvantages. Potential applications and some pros and cons of touchscreen usage are also summarized.
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Fingerprint scanners work by capturing an image of a fingerprint using either an optical or capacitive sensor. An optical scanner uses a charge-coupled device similar to a digital camera to record the light and dark pixels of a fingerprint image. A capacitive scanner detects ridges and valleys of a fingerprint through capacitance changes on its sensor surface. The scanner then converts the analog fingerprint image into a digital format that can be analyzed and compared to stored fingerprints to authenticate identity.
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LCD, or liquid crystal display, is a type of display technology used in devices like digital watches and laptops that uses liquid crystals and polarizing filters to control the amount of light passing through each pixel. It works by passing an electric current through liquid crystals contained between two polarizing sheets, causing the crystals to align and block light in different patterns to create an image. There are different types of LCD panels like twisted nematic, IPS, VA, and advanced fringe field switching. LCDs offer advantages over other display types like taking up less desk space, using less energy, and not emitting radiation, but they can be more expensive and have slower response times and limited viewing angles than other options.
P touch technology
Resistive, capacitive, infrared, and SAW are the main types of touch screen technologies. Resistive touch screens use two electrically conductive layers separated by a gap, such that a touch causes a change in electrical current. Capacitive touch screens use a transparent conductor coated glass and detect changes in capacitance from a human touch. Infrared touch screens use an array of infrared beams to detect touch disruptions. SAW touch screens use ultrasonic waves absorbed by a touch. Each technology has advantages like cost, accuracy, and durability, as well as disadvantages such as sensitivity to liquids or lack of multi-touch support.
Touch technology in Mobiles
Resistive, capacitive, infrared, and SAW are the main types of touch screen technologies. Resistive touch screens use two electrically conductive layers separated by a small gap, detecting input by completing a circuit. Capacitive screens use a transparent conductor like ITO and detect input through electrostatic field distortion. Infrared screens use an array of IR LEDs and detectors to detect input disrupting the beam pattern. SAW screens use ultrasonic waves absorbed by touch input. Each technology has advantages like cost, accuracy, or compatibility with various inputs, as well as disadvantages like durability, resolution, or sensitivity to environmental factors.
WORKING OF TOUCHSCREENS
This document discusses different types of touchscreen technologies and recent advancements. It describes four main types: resistive, capacitive, infrared, and surface acoustic wave. Capacitive touchscreens using indium tin oxide electrodes are now most common due to low cost and good image quality, but ITO is becoming expensive and brittle. Graphene has potential to replace ITO as it is more flexible and durable, but mass production of graphene for touchscreens remains challenging due to the difficulties of growing defect-free graphene sheets and transferring them to device substrates.
Principle of touchscreen1.
This document discusses the principles of touchscreen technology. It begins by defining a touchscreen and describing common touchscreen types like resistive and capacitive. It then explains the basic components of a touchscreen - the touch sensor, controller, and software driver. The document focuses on explaining the working principles of resistive and capacitive touchscreens in detail, including their structures and how touch input is detected. It compares the advantages and disadvantages of each type.
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Fingerprint scanners work by capturing an image of a fingerprint using either an optical sensor like in digital cameras or a capacitive sensor using electrical current. The scanner then compares the captured fingerprint pattern to stored fingerprint images to determine if there is a match. Capacitive scanners have an advantage over optical scanners in that they require the actual fingerprint ridges and valleys rather than just a light/dark pattern, making them harder to fool.
Rohan_Johari__0801EI121047
This document provides an overview of touchscreen technology, including its history, components, types, and pros and cons. It discusses how the first touchscreen was developed in the 1960s and key developments in the 1970s. It describes the components of a basic touchscreen system and the four main types of touch sensor technologies: resistive, capacitive, surface acoustic wave, and infrared. Each technology is explained and compared in terms of durability, response time, advantages, and disadvantages. Potential applications and some pros and cons of touchscreen usage are also summarized.
2
Fingerprint scanners work by capturing an image of a fingerprint using either an optical or capacitive sensor. An optical scanner uses a charge-coupled device similar to a digital camera to record the light and dark pixels of a fingerprint image. A capacitive scanner detects ridges and valleys of a fingerprint through capacitance changes on its sensor surface. The scanner then converts the analog fingerprint image into a digital format that can be analyzed and compared to stored fingerprints to authenticate identity.
Lcd
LCD, or liquid crystal display, is a type of display technology used in devices like digital watches and laptops that uses liquid crystals and polarizing filters to control the amount of light passing through each pixel. It works by passing an electric current through liquid crystals contained between two polarizing sheets, causing the crystals to align and block light in different patterns to create an image. There are different types of LCD panels like twisted nematic, IPS, VA, and advanced fringe field switching. LCDs offer advantages over other display types like taking up less desk space, using less energy, and not emitting radiation, but they can be more expensive and have slower response times and limited viewing angles than other options.
P touch technology
Resistive, capacitive, infrared, and SAW are the main types of touch screen technologies. Resistive touch screens use two electrically conductive layers separated by a gap, such that a touch causes a change in electrical current. Capacitive touch screens use a transparent conductor coated glass and detect changes in capacitance from a human touch. Infrared touch screens use an array of infrared beams to detect touch disruptions. SAW touch screens use ultrasonic waves absorbed by a touch. Each technology has advantages like cost, accuracy, and durability, as well as disadvantages such as sensitivity to liquids or lack of multi-touch support.
Touch technology in Mobiles
Resistive, capacitive, infrared, and SAW are the main types of touch screen technologies. Resistive touch screens use two electrically conductive layers separated by a small gap, detecting input by completing a circuit. Capacitive screens use a transparent conductor like ITO and detect input through electrostatic field distortion. Infrared screens use an array of IR LEDs and detectors to detect input disrupting the beam pattern. SAW screens use ultrasonic waves absorbed by touch input. Each technology has advantages like cost, accuracy, or compatibility with various inputs, as well as disadvantages like durability, resolution, or sensitivity to environmental factors.
WORKING OF TOUCHSCREENS
This document discusses different types of touchscreen technologies and recent advancements. It describes four main types: resistive, capacitive, infrared, and surface acoustic wave. Capacitive touchscreens using indium tin oxide electrodes are now most common due to low cost and good image quality, but ITO is becoming expensive and brittle. Graphene has potential to replace ITO as it is more flexible and durable, but mass production of graphene for touchscreens remains challenging due to the difficulties of growing defect-free graphene sheets and transferring them to device substrates.
Principle of touchscreen1.
This document discusses the principles of touchscreen technology. It begins by defining a touchscreen and describing common touchscreen types like resistive and capacitive. It then explains the basic components of a touchscreen - the touch sensor, controller, and software driver. The document focuses on explaining the working principles of resistive and capacitive touchscreens in detail, including their structures and how touch input is detected. It compares the advantages and disadvantages of each type.
Touch Screens
The document summarizes different multi-touch screen technologies, including resistive, capacitive, and FTIR (Frustrated Total Internal Reflection) screens. Resistive screens use two conductive layers that are pressed together to detect touch points. Capacitive screens use electrodes to create an electric field and detect disruption when touched. FTIR screens use infrared light and cameras to detect where light paths are interrupted by touch. The document also discusses the history and applications of multi-touch technology, including products from Apple and research by Perceptive Pixel using the FTIR method.
Touch screen-technology-article
Touch screen technology allows direct manipulation of digital content on a screen without physical buttons or keys. It detects touch input from fingers or passive objects. There are four main types of touchscreen technologies: resistive, capacitive, surface acoustic wave, and infrared. Touch screens provide advantages like replacing keyboards/mice, intuitive interaction, space savings, durability, and accessibility. However, disadvantages include difficulty entering large amounts of data, potential performance issues if not designed well, and higher costs compared to traditional computers.
Touch screen technology
Touch screens work by detecting the location of a touch on their surface. There are several different technologies used in touch screens like resistive, capacitive, surface acoustic wave, scanning infrared, and near field imaging. Touch screens are widely used in applications like informational kiosks, trade show displays, point-of-sale terminals, industrial process controls, and to provide computer access for the physically disabled.
Touch screen technology
The document discusses the history and technologies of touchscreens. It notes that the first touch sensor was developed in 1971 by Dr. Sam Hurst. In 1974, Hurst and Elographics developed the first true touchscreen with a transparent surface. There are four main touchscreen technologies - resistive, capacitive, infrared, and optical imaging. Resistive touchscreens work by pressing two flexible sheets together. Capacitive screens detect changes in capacitance from a finger touch. Infrared screens use LED beams to detect touches. Optical imaging uses cameras to locate touches.
Touchscreen-MOBILE TECHNOLOGY
A touchscreen is an input device normally layered on the top of an electronic visual display of an information processing system.
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The document discusses touch screen technologies, including their history and current applications. It provides an overview of resistive, capacitive, and surface acoustic wave touch screen technologies. Resistive touch screens use two resistive surfaces that form a closed circuit when touched. Capacitive touch screens use conductive coatings and measure voltage changes when a finger is placed on the screen. Surface acoustic wave screens use transducers to generate and detect sound waves on the screen. The document outlines commercial uses of touch screens in devices like PDAs, tablets, phones and kiosks, and discusses future applications including multi-touch interfaces.
Touch screen sensor
The document describes different types of touch screen technologies. It discusses how resistive, capacitive, infrared, surface acoustic wave (SAW), and projected capacitive touchscreens work. It explains that resistive touchscreens use electrically conductive and resistive layers separated by spacers, while capacitive and SAW touchscreens rely on changes in electrical fields when touched. The document provides brief summaries of each technology's characteristics.
Study of Various Touch Screen Technologies
Study of different types of touch screen technologies, their history, advantages, disadvantages, working, functionalities, comparison, examples, components, hardware, explanations, future scope, pro and cons.
Touch screen technology
This document discusses touch screen technology. It describes the basic components of a touchscreen - a touch sensor, controller, and software driver. It then explains the main touch screen technologies - resistive, capacitive, surface acoustic wave, and infrared. It discusses the characteristics of touchscreens like resolution, image quality, cost and durability. It provides examples of applications for touchscreens like public displays, retail systems, and mobile devices. Recent developments discussed include Microsoft Surface and Extreme Touch technology.
PRESENTATION ON TOUCH TECHNOLOGY.ppt
The document discusses the history and development of touch screen technology. It begins with Dr. Samuel Hurst inventing the first touch sensor called "Elograph" in 1971. It then discusses the four main types of touch screen technologies: resistive, surface acoustic wave, capacitive, and infrared. For each type it provides details on how it works and its advantages and disadvantages. It concludes with a comparison chart of the technologies and an overview of the advantages and disadvantages of touch screens.
Smart phone touch technology 20111104
Touch technology has evolved from early resistive touch screens to modern capacitive touch screens. Resistive touch screens use two electrically conductive layers separated by an insulator that complete a circuit when touched. Capacitive touch screens use coatings of indium tin oxide that detect changes in capacitance when touched. Projected capacitive touch allows more accurate multi-touch detection through etching conductive layers into grids. Infrared and surface acoustic wave touch screens use optical and ultrasonic methods respectively to detect touches. Gestural interfaces can interpret hand and finger motions through technologies like data gloves, depth cameras, and controllers. Common touch gestures include taps, swipes, pinches, and rotations. Prolonged vertical touch screen use can cause fatigue
Touchscreen technology by Mamta
This document provides an overview of touch screen technology, including:
- A brief history starting with the first touch screen developed in 1971 and key developments since then.
- The main components of a touch screen including the touch sensor, controller, and software drivers.
- The main types of touch screen technologies - resistive, capacitive, and infrared.
- The advantages and disadvantages of each technology.
- Common applications of touch screens including mobile phones, tablets, ATMs, and more.
Touch Screen technology
Dr. Samuel Hurst invented the first touch sensor called the "Elo graph" in 1971 while working at the University of Kentucky Research Foundation. He developed the first real touch screen in 1974. There are four main types of touch technologies: resistive, surface acoustic wave, capacitive, and infrared. Each type has advantages and disadvantages for applications like durability, accuracy, and compatibility with different touch objects. While touch screens provide an intuitive interface, they also have limitations including potential lack of buttons, susceptibility to dirt and fingerprints, and higher power requirements.
Touchscreen Technology
The document provides information about different touchscreen technologies. It discusses resistive, capacitive, surface acoustic wave, and infrared touchscreen technologies. For each technology, it describes how touch detection works, examples of devices that use the technology, and pros and cons. The key points are that resistive touchscreens detect pressure, capacitive uses body conductivity, surface acoustic wave uses ultrasonic waves, and infrared detects infrared light disruption. The document is an overview of the main touchscreen types.
physics presentation b4.pptx
The document presents information on different types of touchscreens. It discusses four main types of touchscreen technologies: capacitive, resistive, infrared, and surface acoustic wave. Capacitive touchscreens are the most widely used as they are durable, accurate, and have good optical clarity, though they do not work with gloves. Resistive touchscreens are more affordable but have lower durability. The document also outlines the components and technology behind how touchscreens detect and respond to touch inputs. It provides examples of common applications of touchscreens such as in smartphones, tablets, POS systems, and smart appliances. The future of touchscreens may include haptic feedback and advanced multi-touch recognition.
38822545 touch-screen-technology
Touch screens work by detecting touch input on the screen. There are several touch screen technologies such as resistive, capacitive, surface acoustic wave, scanning infrared, and near field imaging. Resistive touch screens detect touch input through electrical contacts while capacitive screens detect changes in capacitance. Surface acoustic wave uses ultrasonic pulses while scanning infrared uses a grid of LEDs and detectors. Touch screens are used in a variety of applications including information kiosks, retail point-of-sale systems, museums, industrial controls, and more due to their user-friendly interface.
Touch screen
1) Touch screens work by detecting changes in electrical signals or light beams when a user touches the screen.
2) The first touch screen was developed in 1971 and incorporated a transparent surface in 1974.
3) There are several types of touch screen technologies including resistive, capacitive, infrared, and surface wave technologies, each with their own advantages and disadvantages related to durability, accuracy, and input detection.
Presentation on touchscreen
A touch screen is an electronic display that can detect touch input. It allows direct interaction with what is displayed without needing an intermediate pointing device. The first touch screen was developed in the 1960s for air traffic control. Touch screens work by using touch sensors and controllers to detect touch locations and relay that information to software. Common touch screen technologies include resistive, surface acoustic wave, capacitive, infrared, and optical imaging. Touch screens are now widely used in devices like phones, tablets, and public information kiosks.
Touchscreen Display Technologies
The document summarizes four main touchscreen display technologies: resistive, capacitive, surface acoustic wave, and infrared. Resistive touchscreens use two flexible surfaces that create resistance when touched. Capacitive screens detect finger proximity to change the electric field. Surface acoustic wave uses ultrasonic waves that are disrupted by touch. Infrared touchscreens use beams of light interrupted by a finger or stylus. Each technology has advantages like cost, clarity or sensitivity, and disadvantages like durability or activation method.
Touch sensor
Touchscreens work by detecting touch input on a clear glass panel through various technologies. Eric Johnson first described capacitive touchscreens in 1965, while Bent Stumpe developed early prototypes of resistive and capacitive touchscreens in the 1970s at CERN. The main touchscreen technologies are resistive, capacitive, projected capacitive, infrared, optical, and surface acoustic wave. Resistive touchscreens use two flexible layers separated by a gap, while capacitive uses electrodes and a controller to detect finger touch. Projected capacitive allows for multi-touch and works with thin gloves. Infrared uses light beams and optical sensors rather than an overlay.
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The document summarizes different multi-touch screen technologies, including resistive, capacitive, and FTIR (Frustrated Total Internal Reflection) screens. Resistive screens use two conductive layers that are pressed together to detect touch points. Capacitive screens use electrodes to create an electric field and detect disruption when touched. FTIR screens use infrared light and cameras to detect where light paths are interrupted by touch. The document also discusses the history and applications of multi-touch technology, including products from Apple and research by Perceptive Pixel using the FTIR method.
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Touch screen technology allows direct manipulation of digital content on a screen without physical buttons or keys. It detects touch input from fingers or passive objects. There are four main types of touchscreen technologies: resistive, capacitive, surface acoustic wave, and infrared. Touch screens provide advantages like replacing keyboards/mice, intuitive interaction, space savings, durability, and accessibility. However, disadvantages include difficulty entering large amounts of data, potential performance issues if not designed well, and higher costs compared to traditional computers.
Touch screen technology
Touch screens work by detecting the location of a touch on their surface. There are several different technologies used in touch screens like resistive, capacitive, surface acoustic wave, scanning infrared, and near field imaging. Touch screens are widely used in applications like informational kiosks, trade show displays, point-of-sale terminals, industrial process controls, and to provide computer access for the physically disabled.
Touch screen technology
The document discusses the history and technologies of touchscreens. It notes that the first touch sensor was developed in 1971 by Dr. Sam Hurst. In 1974, Hurst and Elographics developed the first true touchscreen with a transparent surface. There are four main touchscreen technologies - resistive, capacitive, infrared, and optical imaging. Resistive touchscreens work by pressing two flexible sheets together. Capacitive screens detect changes in capacitance from a finger touch. Infrared screens use LED beams to detect touches. Optical imaging uses cameras to locate touches.
Touchscreen-MOBILE TECHNOLOGY
A touchscreen is an input device normally layered on the top of an electronic visual display of an information processing system.
Touch screen technology BY DHAVAL BHATT
The document discusses touch screen technologies, including their history and current applications. It provides an overview of resistive, capacitive, and surface acoustic wave touch screen technologies. Resistive touch screens use two resistive surfaces that form a closed circuit when touched. Capacitive touch screens use conductive coatings and measure voltage changes when a finger is placed on the screen. Surface acoustic wave screens use transducers to generate and detect sound waves on the screen. The document outlines commercial uses of touch screens in devices like PDAs, tablets, phones and kiosks, and discusses future applications including multi-touch interfaces.
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The document describes different types of touch screen technologies. It discusses how resistive, capacitive, infrared, surface acoustic wave (SAW), and projected capacitive touchscreens work. It explains that resistive touchscreens use electrically conductive and resistive layers separated by spacers, while capacitive and SAW touchscreens rely on changes in electrical fields when touched. The document provides brief summaries of each technology's characteristics.
Study of Various Touch Screen Technologies
Study of different types of touch screen technologies, their history, advantages, disadvantages, working, functionalities, comparison, examples, components, hardware, explanations, future scope, pro and cons.
Touch screen technology
This document discusses touch screen technology. It describes the basic components of a touchscreen - a touch sensor, controller, and software driver. It then explains the main touch screen technologies - resistive, capacitive, surface acoustic wave, and infrared. It discusses the characteristics of touchscreens like resolution, image quality, cost and durability. It provides examples of applications for touchscreens like public displays, retail systems, and mobile devices. Recent developments discussed include Microsoft Surface and Extreme Touch technology.
PRESENTATION ON TOUCH TECHNOLOGY.ppt
The document discusses the history and development of touch screen technology. It begins with Dr. Samuel Hurst inventing the first touch sensor called "Elograph" in 1971. It then discusses the four main types of touch screen technologies: resistive, surface acoustic wave, capacitive, and infrared. For each type it provides details on how it works and its advantages and disadvantages. It concludes with a comparison chart of the technologies and an overview of the advantages and disadvantages of touch screens.
Smart phone touch technology 20111104
Touch technology has evolved from early resistive touch screens to modern capacitive touch screens. Resistive touch screens use two electrically conductive layers separated by an insulator that complete a circuit when touched. Capacitive touch screens use coatings of indium tin oxide that detect changes in capacitance when touched. Projected capacitive touch allows more accurate multi-touch detection through etching conductive layers into grids. Infrared and surface acoustic wave touch screens use optical and ultrasonic methods respectively to detect touches. Gestural interfaces can interpret hand and finger motions through technologies like data gloves, depth cameras, and controllers. Common touch gestures include taps, swipes, pinches, and rotations. Prolonged vertical touch screen use can cause fatigue
Touchscreen technology by Mamta
This document provides an overview of touch screen technology, including:
- A brief history starting with the first touch screen developed in 1971 and key developments since then.
- The main components of a touch screen including the touch sensor, controller, and software drivers.
- The main types of touch screen technologies - resistive, capacitive, and infrared.
- The advantages and disadvantages of each technology.
- Common applications of touch screens including mobile phones, tablets, ATMs, and more.
Touch Screen technology
Dr. Samuel Hurst invented the first touch sensor called the "Elo graph" in 1971 while working at the University of Kentucky Research Foundation. He developed the first real touch screen in 1974. There are four main types of touch technologies: resistive, surface acoustic wave, capacitive, and infrared. Each type has advantages and disadvantages for applications like durability, accuracy, and compatibility with different touch objects. While touch screens provide an intuitive interface, they also have limitations including potential lack of buttons, susceptibility to dirt and fingerprints, and higher power requirements.
Touchscreen Technology
The document provides information about different touchscreen technologies. It discusses resistive, capacitive, surface acoustic wave, and infrared touchscreen technologies. For each technology, it describes how touch detection works, examples of devices that use the technology, and pros and cons. The key points are that resistive touchscreens detect pressure, capacitive uses body conductivity, surface acoustic wave uses ultrasonic waves, and infrared detects infrared light disruption. The document is an overview of the main touchscreen types.
physics presentation b4.pptx
The document presents information on different types of touchscreens. It discusses four main types of touchscreen technologies: capacitive, resistive, infrared, and surface acoustic wave. Capacitive touchscreens are the most widely used as they are durable, accurate, and have good optical clarity, though they do not work with gloves. Resistive touchscreens are more affordable but have lower durability. The document also outlines the components and technology behind how touchscreens detect and respond to touch inputs. It provides examples of common applications of touchscreens such as in smartphones, tablets, POS systems, and smart appliances. The future of touchscreens may include haptic feedback and advanced multi-touch recognition.
38822545 touch-screen-technology
Touch screens work by detecting touch input on the screen. There are several touch screen technologies such as resistive, capacitive, surface acoustic wave, scanning infrared, and near field imaging. Resistive touch screens detect touch input through electrical contacts while capacitive screens detect changes in capacitance. Surface acoustic wave uses ultrasonic pulses while scanning infrared uses a grid of LEDs and detectors. Touch screens are used in a variety of applications including information kiosks, retail point-of-sale systems, museums, industrial controls, and more due to their user-friendly interface.
Touch screen
1) Touch screens work by detecting changes in electrical signals or light beams when a user touches the screen.
2) The first touch screen was developed in 1971 and incorporated a transparent surface in 1974.
3) There are several types of touch screen technologies including resistive, capacitive, infrared, and surface wave technologies, each with their own advantages and disadvantages related to durability, accuracy, and input detection.
Presentation on touchscreen
A touch screen is an electronic display that can detect touch input. It allows direct interaction with what is displayed without needing an intermediate pointing device. The first touch screen was developed in the 1960s for air traffic control. Touch screens work by using touch sensors and controllers to detect touch locations and relay that information to software. Common touch screen technologies include resistive, surface acoustic wave, capacitive, infrared, and optical imaging. Touch screens are now widely used in devices like phones, tablets, and public information kiosks.
Touchscreen Display Technologies
The document summarizes four main touchscreen display technologies: resistive, capacitive, surface acoustic wave, and infrared. Resistive touchscreens use two flexible surfaces that create resistance when touched. Capacitive screens detect finger proximity to change the electric field. Surface acoustic wave uses ultrasonic waves that are disrupted by touch. Infrared touchscreens use beams of light interrupted by a finger or stylus. Each technology has advantages like cost, clarity or sensitivity, and disadvantages like durability or activation method.
Touch sensor
Touchscreens work by detecting touch input on a clear glass panel through various technologies. Eric Johnson first described capacitive touchscreens in 1965, while Bent Stumpe developed early prototypes of resistive and capacitive touchscreens in the 1970s at CERN. The main touchscreen technologies are resistive, capacitive, projected capacitive, infrared, optical, and surface acoustic wave. Resistive touchscreens use two flexible layers separated by a gap, while capacitive uses electrodes and a controller to detect finger touch. Projected capacitive allows for multi-touch and works with thin gloves. Infrared uses light beams and optical sensors rather than an overlay.
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DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
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Comparative analysis between traditional aquaponics and reconstructed aquapon...
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Embedded machine learning-based road conditions and driving behavior monitoring
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
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Touch screens
- 7. Types of touchscreens (most commonly used) 1.Resistive These screens literally “resist” your touch; if you press hard enough you can feel the screen bend slightly. This is what makes resistive screens work – two electrically conductive layers bending to touch one another. Resistive touch screens are durable and consistent, but they’re harder to read because the multiple layers reflect more ambient light.
- 8. Capacitive touch screens • Capacitive touch screens are constructed from materials like copper or indium tin oxide that store electrical charges in an electrostatic grid of tiny wires, each smaller than a human hair. • There are two main types of capacitive touch screens 1. surface 2. projective. Surface capacitive uses sensors at the corners and a thin evenly distributed film across the surface Projective capacitive uses a grid of rows and columns with a separate chip for sensing
- 9. Advanced touch screen technologies 1. Infrared In infrared touch screen technology, an array of X and Y axis is fitted with pairs of IR Leds and photo detectors. Photo detectors will detect any image in the pattern of light emitted by the Leds whenever the user touches the screen. 2. Surface Acoustic wave: The surface acoustic wave technology contains two transducers placed along X-axis and Y- axis of the monitor’s glass plate along with some reflectors. When the screen is touched, the waves are absorbed and a touch is detected at that point. These reflectors reflect all electrical signals sent from one transducer to another. This technology provides excellent through put and quality
- 12. Thank you