Flexible Handheld Controller for Precise Textile Gesture Control
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Solution Overview
Problem
Current control elements for technical devices are often rigid, inflexible, and lack precision in multidimensional control, particularly when integrated into textiles or used for gesture recognition, leading to challenges in comfortable and precise long-term operation.
Innovation Solution
A flexible, portable handheld controller with sensors for detecting electrical resistances and capacitances, integrated into a glove-like design, allowing for precise and versatile control of electrically controllable devices through finger movements and pressure, enabling continuous and stepped control signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rigid control elements (pushbuttons, toggle switches, joysticks) are used, then control functions can be implemented, but the device lacks flexibility and cannot be integrated into textiles, reducing comfort and adaptability
Solution Approach 1:
The patent employs flexible printed circuit boards (FPC) as the substrate for mounting sensors and electronic components. The FPC allows the control device to be bent, folded, and integrated into textile structures while maintaining electrical connectivity and functional performance, directly resolving the contradiction between structural flexibility and operational functionality
Solution Approach 2:
The invention integrates multiple material layers including flexible substrates, conductive traces, sensor elements, and textile fabrics into a composite structure. This composite approach combines the mechanical flexibility of textiles with the electronic functionality of rigid components, enabling both adaptability and ease of operation
2Measurement precision
If simple control elements (pushbuttons, switches) are used, then the device structure remains simple, but multidimensional control precision is insufficient
Solution Approach 1:
The patent combines multiple sensor types (capacitive sensors, resistive sensors, flex sensors) onto a single flexible substrate, allowing simultaneous measurement of position, pressure, and gesture dimensions. This merging approach achieves high-dimensional control precision while maintaining relatively simple device architecture through integrated sensor arrays
Solution Approach 2:
The flexible sensor array serves multiple functions including touch detection, pressure sensing, gesture recognition, and position tracking. This multi-functionality enables precise multidimensional control without requiring separate dedicated components for each sensing modality, thereby managing device complexity
3Measurement precision
If touchscreen control is used, then two-dimensional control is enabled, but the rigid glass plate prevents perception of mechanical compliance and reduces comfort
Solution Approach 1:
The patent replaces rigid touchscreen glass with flexible thin-film capacitive sensors mounted on bendable substrates. This flexibility restores mechanical compliance and tactile feedback while maintaining capacitive touch detection capabilities, enabling both precision control and comfortable operation
Solution Approach 2:
The flexible substrate acts as an intermediary between the user's finger and the sensor elements, providing mechanical compliance and tactile feedback while still enabling precise capacitive coupling for touch detection. This mediator layer preserves both precision and comfort
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a comfortable, long-term control option that is precise and versatile, allowing for a wide range of control functions without the risk of interruption, leveraging the natural flexibility and movement capabilities of the human hand.
Implementation Method 1
with at least one sensor, wherein the at least one sensor is suitable for detecting electrical resistances
Implementation Method 2
and/or at least one sensor suitable for measuring electrical capacitances
Data Source
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AI summary
A flexible, portable handheld control unit for controlling an electrically controlled device is provided. The handheld control unit includes at least one sensor suitable for detecting electrical resistances and/or at least one sensor suitable for measuring electrical capacitances. Furthermore, the handheld control unit includes an electronic control unit and a communication interface. With its simple design and cost-effective manufacturing, the handheld control unit enables precise and versatile control of an electrically controlled device, which can be carried out comfortably and without risk of interruption, even over extended periods. A kit containing the handheld control unit according to the invention and an electrically controlled device is also provided. Furthermore, uses of the handheld control unit according to the invention are proposed.