Capacitive Touch Switch Plate for Combined Multi-Function Control
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Solution Overview
Problem
Conventional capacitive touch switch devices are limited in the number of functions they can activate with a single plate, often requiring larger plates to accommodate multiple electrical devices, and struggle to efficiently manage simultaneous or prolonged touch interactions to trigger additional functions.
Innovation Solution
The new switch device incorporates a control circuit that connects to both main and secondary switches, allowing simultaneous or prolonged touch interactions on a capacitive touch plate to activate additional functions, with the duration of contact determining which secondary switch is activated, enabling more functions on a smaller plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a plate has only two contact areas, then the device complexity is reduced and plate size is minimized, but the number of functions that can be activated is limited
Solution Approach 1:
The patent implements multi-functionality by enabling a two-contact-area plate to activate at least four different functions through differentiated touch interactions. The control circuit distinguishes between individual touches, simultaneous touches, and prolonged touches to selectively activate main switches or secondary switches, allowing a single plate to perform multiple functions without adding physical switches.
Solution Approach 2:
The control circuit dynamically responds to touch duration and timing characteristics. By detecting whether a touch is brief or prolonged (comparing against a predetermined time interval), the system adapts its behavior to activate different functions. This dynamic response enables the same physical contact areas to trigger different outcomes based on the temporal characteristics of the user interaction.
2Adaptability or versatility
If a plate has only two contact areas, then the plate size is minimized for ease of installation, but the functional capabilities are limited
Solution Approach 1:
The patent enables a compact two-contact-area plate to provide at least four different functions by implementing intelligent touch detection. The control circuit identifies individual touches versus simultaneous touches and distinguishes brief touches from prolonged touches, allowing the same physical infrastructure to deliver diverse functional outcomes without requiring additional contact areas or increasing plate dimensions.
Solution Approach 2:
The patent adds a temporal dimension to the touch interaction by measuring touch duration. Instead of relying solely on spatial differentiation (more contact areas), the system uses time-based differentiation (brief versus prolonged touches) to expand functional capabilities. This temporal dimension allows the same spatial configuration to support multiple functions.
3Adaptability or versatility
If simultaneous touch of multiple contact areas activates additional functions, then the number of controllable devices increases, but the difficulty of detecting and measuring touch patterns increases
Solution Approach 1:
The control circuit dynamically adapts its detection logic based on touch timing and duration. It monitors each contact area independently and compares the timing of touches across areas to determine simultaneity. By measuring touch duration against a predetermined time interval, the system dynamically distinguishes between brief accidental touches and prolonged intentional touches, enabling reliable detection of complex touch patterns.
Solution Approach 2:
The control circuit implements feedback by continuously monitoring the state of each contact area and using this information to determine the appropriate function to activate. The system processes touch signals in real-time, comparing timing and duration characteristics to distinguish between different user intentions. This feedback mechanism enables the system to accurately interpret complex touch patterns and activate the corresponding functions reliably.
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
This configuration allows for the activation of at least four different functions with a plate having only two contact areas, enhancing usability in modern environments with multiple electrical devices, while avoiding activation of main switches during combined touch events, thereby expanding functional capabilities without increasing plate size.
Implementation Method 1
Capacitive touch-controlled on/off devices are known in the prior art and comprise a plate on which there are areas sensitive to the contact of human fingers or other conductive bodies
Data Source
Figure 1~2
Figure 3a~3b
AI summary
This is a device for closing/opening two or more main switches of corresponding electrical power supply circuits of related electrical devices comprising a plate (P), with at least two capacitive touch contact areas (1, 2, 3), and a control circuit configured in such a way as to also control two or more additional switches and in such a way that in the event that only one of said contact areas (1, 2, 3) is touched, only the corresponding main switch is opened/closed, while in the case of the combined touching of at least two of said contact areas (1, 2, 3) one of said additional switches is opened/closed.