An intelligent sensor glove with emotion recognition system

DE202025104349U1Active Publication Date: 2025-09-25K RAMAKRISHNAN COLLEGE OF ENG TIRUCHIRAPPALLI +2
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Patent Information

Application Number
DE202025104349
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-07-28
Publication Date
2025-09-25
Estimated Expiration
2035-07-31

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Abstract

An intelligent sensor glove with emotion recognition system, comprising: at least one touch sensor on each fingertip, allowing users to create circuits by directly drawing and Manipulating components through natural hand movements; a pressure-sensitive capacitive sensor with a multi-layer electrode structure that precisely detects force fluctuations and thus enables precise control of circuit elements; a biometric sweat sensor with a graphene ion extraction plate that analyzes the ion content in sweat to determine the user's emotional state and ergonomic comfort; and a flexible LED display on the back of the hand that allows users to select, modify, and save circuit components while also allowing gesture customization for seamless control.
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Description

TECHNICAL FIELD

[0001] The present invention relates to an advanced wearable device in the form of smart sensor gloves for the design of electronic circuits without a conventional cursor or mouse. The invention combines motion tracking, capacitive sensing, sweat-based biometric sensing, and wireless connectivity for intuitive, gesture-based interaction and captures emotions through sweat measurement. Beyond circuit design, these gloves find applications in AR / VR, gaming, medical diagnostics, industrial automation, and assistive technologies. They utilize advanced materials science, embedded computing, and machine learning for greater precision and efficiency. BACKGROUND

[0002] Traditional circuit design methods rely on external input devices such as a mouse, stylus, or touchscreen, which restrict natural hand movement and make the process less intuitive. To date, there are no sensor gloves that address these challenges and allow users to draw circuits directly on any surface using advanced fingertip sensors.

[0003] Therefore, there is a need to introduce an intelligent system for circuit design using gloves. The present invention effectively overcomes the above-mentioned problems, limitations, and disadvantages. OBJECT OF THE INVENTION

[0004] The primary goal of this invention is to develop an advanced smart sensor glove system that enables an intuitive, hands-free approach to electronic circuit design. By eliminating traditional input devices such as a mouse, stylus, or keyboard, the gloves enable interaction with digital design platforms through natural hand movements. The integration of motion tracking and capacitive touch sensors increases precision and efficiency, providing a more seamless circuit design experience.

[0005] Another goal of the invention is to improve the user experience by integrating pressure-sensitive technology for precise control of circuit elements. The gloves feature a capacitive sensor in a sandwich structure that ensures precise pressure detection and allows designers to manipulate circuit components with varying intensities. The implementation of real-time gesture recognition also enables adaptation to different design workflows and offers users the ability to customize gesture-based commands for greater efficiency.

[0006] Another objective of the present invention is to establish the gloves as a versatile, multifunctional wearable device with applications in AR, VR, gaming, robotics, and industrial automation. The biometric sweat sensor integrated into the gloves further expands their utility by analyzing sweat ion levels and thus determining the wearer's emotional state. This feature contributes to ergonomic adjustment and makes the gloves extremely useful for various interactive digital environments, remote robotic operations, and virtual prototyping. Furthermore, the integration of Bluetooth and Wi-Fi ensures seamless connectivity and enables real-time data transfer, cloud integration, and efficient storage and retrieval of circuit components.Thanks to a hybrid power system that combines battery operation with DC power, the gloves are designed for expanded use in professional and industrial environments while remaining wearable.

[0007] Another goal of the present invention is to emphasize affordability and accessibility through the use of low-cost materials such as graphene-based electrodes, PDMS dielectric layers, and flexible OLED displays. By optimizing production techniques and material selection, the invention aims to democratize access to advanced circuit design tools. This benefits students, professionals, and industries requiring high-precision design systems. The long-term vision of these gloves goes beyond circuit design, positioning them as a comprehensive wearable interface for diverse applications.

[0008] These and other objects and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying block diagram. SUMMARY

[0009] The various embodiments of the present invention provide an advanced smart glove system for electronic circuit design and gesture-based interactions. The gloves integrate various sensor and display technologies, making them a versatile tool for engineering, virtual environments, and more. The system features integrated touch sensors in the fingertips, allowing users to draw, modify, and manipulate circuits directly on any flat surface without the need for traditional input devices such as a mouse or stylus. A flexible LED display on the back of the glove allows for easy selection, modification, and storage of circuit components.The gloves also feature an innovative pressure-sensitive capacitive sandwich sensor consisting of graphene-coated fabric electrodes on the top and bottom surfaces, with a PDMS carbon nanotube (CNT) middle layer sandwiched between them. This structure changes capacitance depending on the applied force, enabling precise pressure detection during circuit interactions.

[0010] In addition, the gloves are equipped with sweat-based biometric sensors that detect ions present in sweat such as sodium (Na + ), potassium (K + ) and chloride (Cl -This system measures fluctuations in electrical conductivity, helping to detect emotional states in real time. To ensure seamless connectivity, the gloves support wireless communication via Bluetooth and Wi-Fi, enabling real-time data transfer between the gloves and external devices such as computers or AR / VR systems. The gloves are powered by a hybrid energy system, allowing them to operate with both rechargeable batteries and direct current.

[0011] In one embodiment, they could be optimized for gesture-based computing beyond circuit design, making them valuable for human-computer interaction, healthcare, industrial automation, and construction. The integration of AI-powered motion analysis could enable the gloves to translate sign language into text or speech, thus assisting people with disabilities. Furthermore, their ability to precisely track finger and hand movements could make them useful for virtual surgery, robot-assisted assembly, and remote robot control. The integration of haptic feedback via vibrating threads enhances the user experience through real-time tactile responses, providing a more natural and immersive experience for interactions.These features position the smart gloves as a true multipurpose wearable technology that can be seamlessly integrated into modern digital ecosystems, expanding the possibilities of virtual prototyping, simulation training, and interactive learning environments.

[0012] These and other aspects of the embodiments described herein will become more fully understood in conjunction with the following description and the accompanying drawings. While the following descriptions show preferred embodiments and numerous specific details, they are illustrative and not limiting. Numerous changes and modifications are possible within the scope of the embodiments described herein without departing from the spirit thereof, and the embodiments described herein are intended to include all such modifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The further objects, features and advantages will become apparent to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings. Fig. shows the isometric view of the intelligent sensor glove with emotion recognition system according to an embodiment of the present invention. Fig. shows an isometric view of the vibrating filament capacitive touch sensor according to one embodiment of the present invention. While specific features of the present invention are shown in some drawings and not in others, this is for convenience only, as each feature of the present invention may be combined with all or any of the other features. DETAILED DESCRIPTION

[0014] The various embodiments, as well as further developments and features, are explained in the following detailed description using non-limiting details. The depiction of processing techniques for known components is omitted in order not to unnecessarily obscure the embodiments described herein. The examples used herein are intended to facilitate understanding of the possible applications of the embodiments described herein and to enable those skilled in the art to implement the embodiments described herein. The examples are therefore not to be understood as limiting the scope of application of the embodiments described herein.

[0015] The various embodiments of the present invention disclose a smart sensor glove with an emotion recognition system to facilitate the design of electronic circuits without conventional input devices. The smart sensor glove has at least one touch sensor on each fingertip, allowing users to design circuits by directly drawing and manipulating components using natural hand movements. The pressure-sensitive capacitive sensor has a layered electrode structure that precisely detects force fluctuations, thus enabling the control of circuit elements. The biometric sweat sensor with a graphene ion extraction plate analyzes the ion content (Na + , K + , Cl -) in sweat to determine the user's emotional state and ergonomic comfort. The flexible LED display on the back of the hand allows for the selection, modification, and storage of circuit components, while also allowing for gesture customization for seamless control.

[0016] In one embodiment, the smart glove uses a special capacitive touch sensor. This sensor has a sandwich construction and consists of three layers: Top layer (electrode): A flexible, graphene-coated fabric that offers excellent conductivity and allows the sensor to bend easily. It carries a positive charge. Middle layer (sensor material): A thick layer of polydimethylsiloxane (PDMS) mixed with carbon nanotubes (CNTs). This material is soft and compressible, making it ideal for pressure measurement. Bottom layer (electrode): Another graphene-coated fabric with a negative charge. Because this structure consists of two conductive layers (top and bottom) and an insulating layer (middle), it functions like a capacitor, a storage medium for electrical charge. The amount of charge stored depends on the distance between the two conductive layers.The sensor is located at the fingertips of the glove. When a finger presses against a surface, both the top and bottom layers exert force. The distance between the electrodes decreases, changing the capacitance (the ability to store charge). High pressure (firm pressure) causes a large change in capacitance, while low pressure (light touch) causes a small change. The glove detects these changes and sends signals to the connected system to record the touch and the applied pressure.

[0017] This method enables the glove to precisely sense touch and pressure. The graphene-coated fabric makes it flexible, lightweight, and efficient.

[0018] Motion tracking: To precisely track the movement of the fingers and the entire glove, the glove uses a combination of gyroscopes, accelerometers, and magnetometers. These sensors enable precise detection of movement, direction, and orientation. Each fingertip has a small gyroscope and an accelerometer for measuring movement. The gyroscope detects the direction of rotation of the finger (left, right, up, or down). The accelerometer measures the speed of movement. Since each finger can move independently, separate sensors on each fingertip ensure precise detection of every movement.

[0019] Fig. shows the isometric view of the smart sensor glove with emotion recognition system according to an embodiment of the present invention. When a finger moves, the internal gyroscope detects the angle of movement, while the accelerometer detects the speed. When a person draws a shape with their fingers, these sensors help track its precise position and direction in real time. In addition to individual finger tracking, a central tracking system is located on the back of the hand. A 6-axis IMU (Inertial Measurement Unit) combines a gyroscope and an accelerometer to detect both rotation and movement. A magnetometer determines the direction of the glove relative to the Earth's magnetic field. These sensors detect whether the hand is moving forward, backward, left, right, up, or down.This method allows the glove to capture detailed finger movements, track the overall movement of the hand, and ensure smooth and precise control. This makes it ideal for circuit design and AR / VR applications. Fig.shows the isometric view of the vibrating filament capacitive touch sensor according to an embodiment of the present invention. Gesture recognition: Gesture recognition allows users to perform various actions through hand and finger movements. This facilitates the operation of the glove, as users can quickly switch between different modes and functions without having to press buttons. Each fingertip of the glove has a capacitive touch sensor that detects touch and pressure. When a user performs a specific gesture, such as a double tap, the sensor measures the change in capacitance. Since a double tap means the finger touches the surface twice in quick succession and then releases, the sensor detects two rapid changes in capacitance. This pattern helps the glove understand that a double tap was performed.Once the glove recognizes this gesture, it can activate a custom mode or perform an action selected by the user. In addition to double-tapping, various gestures are possible. Long press: Holding your finger on the surface for a longer time activates a different mode. Swipe: Moving your finger in a specific direction switches between tools. Pinch: Zooming in or out by bringing two fingers closer together or apart. Full hand touch: Placing all fingers on the surface puts the glove into erase mode for editing circuits.

[0020] The glove's LED touchscreen allows users to customize these gestures. For example, a triple tap can activate a special tool, or a swipe can change the drawing thickness. Since all gestures are based on capacitance changes, they can be easily recognized and customized to user preferences. This gesture-based control makes the glove more intuitive, faster, and more efficient, especially for circuit design, AR / VR applications, and other creative tasks.

[0021] Sweat-based emotion recognition: The smart glove can detect a user's emotions by analyzing the sweat on their fingertips. This is possible because our bodies produce more or less sweat depending on our emotions. For example, when we are nervous, stressed, or excited, our hands sweat more, while when we are at rest or relaxed, it decreases. A special sweat sensor plate made of graphene is placed on the graphene electrode (the top layer of the sandwich sensor). This plate detects the sweat from the wearer's fingers. Sweat contains ions such as sodium ions (Na + ), chloride ions (Cl - ), potassium ions (K + ) and lactations (C3H5O3 -These ions interact with the graphene plate and change its electrical conductivity. As the amount of sweat increases, more ions react with the graphene, affecting the conductivity of the electrode. By measuring these conductivity changes, the glove can assess the wearer's current emotional state.

[0022] LED screen and buttons: The smart glove features an LED touchscreen and customizable buttons on the side of the index finger. These buttons allow for quick and efficient switching between different modes without relying solely on gestures. Each button can be programmed via the LED display for specific tasks, such as selecting circuit components, switching between tools, or undoing actions. These customization options make the glove adaptable for various applications such as circuit design, gaming, and virtual reality. The LED display serves as a control panel and allows users to customize gestures and button functions, view system settings, and connect to Wi-Fi and cloud storage to import presets.These presets include pre-built circuit components and custom gesture settings that can be downloaded and restored across devices. For offline use, the glove also features internal memory for storing important presets.

[0023] In addition to customization, the LED display can display real-time notifications such as battery level, connection updates, and gesture recognition. Other features include voice control, which enables mode switching via voice command, and AI-powered gesture learning, which allows the glove to adapt to the user's individual hand movements. For an enhanced user experience, the glove can feature haptic feedback, where button presses or recognized gestures are confirmed by a slight vibration. These features make the smart glove highly intuitive, responsive, and adaptable for various tasks, ensuring a seamless user experience across multiple industries. Vibration Threads: The smart glove features vibration threads for haptic feedback, allowing users to feel slight vibrations during actions.These threads are located above the sweat-sensitive area at the fingertips and palm of the glove. At both ends of each thread are small vibration motors that generate the vibrations. When an action is performed, such as selecting a component, changing a mode, or pressing a button, the vibration motors are activated and send gentle vibrations through the thread. This feels like a gentle pulsing or buzzing on the fingers or palm, confirming the successful action. The intensity and duration of the vibration can be individually adjusted via the LED display, allowing users to adjust the feedback strength to their liking.

[0024] To expand functionality, the vibration system can be used for notifications. For example, if the battery level is low, the glove can emit a long vibration to warn the user. Likewise, if Bluetooth or Wi-Fi is disconnected, the glove can vibrate in a specific pattern to indicate the problem. The vibration threads can also provide directional feedback, meaning different areas of the glove can vibrate separately to guide the user. For example, if the user deviates from the correct path while drawing a circuit, the glove can generate a slight vibration at the fingertip to signal the error. This real-time feedback system makes the glove more interactive and ensures a smoother user experience for circuit design, AR / VR applications, and gaming.

[0025] Power supply: The smart sensor glove is equipped with hybrid power supply technology, ensuring continuous and reliable operation without interruptions. This system combines two power sources: a rechargeable battery and a direct power connection, allowing users to choose the most convenient method depending on their needs. The battery is integrated into the elastic grip of the glove, ensuring a lightweight and comfortable fit. It offers mobile, wireless functionality, allowing users freedom of movement when designing circuits or interacting with digital interfaces. The battery is also easily replaceable, ensuring long-term use without frequent maintenance.

[0026] For extended use, the glove is equipped with a direct charging port, allowing wired power when the battery is low. This feature is particularly useful for extended use, such as in laboratories, industrial environments, or AR / VR applications where uninterrupted operation is required. The system automatically switches between battery and direct power, ensuring the glove remains functional even when a power source is temporarily unavailable.

[0027] To improve energy efficiency, the glove features intelligent power management that optimizes battery consumption based on user activity. When idle, the system reduces power consumption by switching to a low-power mode, thus extending battery life. Rapid-charging technology also allows the glove to be recharged quickly, minimizing downtime. The combination of battery and direct power supply ensures continuous, high-performance operation of the glove, making it a practical and durable tool for various applications in circuit design, virtual interaction, and industrial automation.

[0028] The examples of the present invention described above are for illustrative purposes only. Although the present invention has been described using a specific example, numerous modifications are possible without significantly affecting the teachings and advantages of the subject matter described herein. Further substitutions, modifications, and changes are possible without departing from the spirit of the present solution. All features disclosed in this specification (including the appended claims, the abstract, and the drawings) and / or all steps of a method or process disclosed therein may be combined in any way, except for combinations in which at least some of these features and / or steps are mutually exclusive.

[0029] Although the embodiments described herein are described in terms of various specific implementations, it will be apparent to those skilled in the art to practice the embodiments described herein with modifications. List of reference symbols: 1 Capacitive touch sensor with vibrating thread 2 Cable path for sensor reading 3 Vibration surface in the palm of the hand 4 Charging port 5 Battery connection 6 Elastic handle with battery 7 buttons 8 cable vibration input 9 Central Tracking System 10 LED touch display with Wi-Fi and Bluetooth connectivity 11 Cable for capacitance change detection 12 Vibration plate 13 Vibration thread 14 Graphene plate for ion extraction from sweat 15 Capacitance change detector 16 Dielectric layer made of PDMS (polydimethylsiloxane) 17 Graphene electrode

Claims

[1] An intelligent sensor glove with emotion recognition system, comprising: at least one touch sensor on each fingertip, allowing users to create circuits by directly drawing and Manipulating components through natural hand movements; a pressure-sensitive capacitive sensor with a multi-layer electrode structure that precisely detects force fluctuations and thus enables precise control of circuit elements; a biometric sweat sensor with a graphene ion extraction plate that analyzes the ion content in sweat to determine the user's emotional state and ergonomic comfort; and a flexible LED display on the back of the hand that allows users to select, modify, and save circuit components while also allowing gesture customization for seamless control. [2] The smart sensor glove with emotion recognition system according to claim 1, wherein the independent motion sensors are positioned in each fingertip to track precise finger movements, further comprising a gyroscope for increased accuracy, enabling gesture-based interactions and virtual inputs. [3] The intelligent sensor glove with emotion recognition system according to claim 1 has dual wireless connectivity via Bluetooth and WLAN, which enables direct device connection via Bluetooth and remote cloud access via WLAN for storing presets and circuit designs. [4] The smart sensor glove with emotion recognition system according to claim 1 offers custom gesture control, allowing users to assign specific hand movements for various actions such as drawing, deleting, and selecting components. This makes the operation of the gloves intuitive. [5] The smart sensor glove with emotion recognition system according to claim 1 activates the erasing mode by placing all fingers on a surface. This triggers a predefined gesture-based erasing function. [6] The intelligent sensor glove with emotion recognition system according to claim 1 provides vibration feedback through embedded vibration threads in the fingertips and palm and delivers haptic responses for an immersive user experience. [7] The smart sensor glove with emotion recognition system according to claim 1, wherein the capacitive pressure detection is performed by a capacitive sensor in a sandwich structure, whereby the system can detect and respond to different pressure levels of the fingertips.