Memory Alloy Tactile Matrix for 3D Touch Information Output
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Solution Overview
Problem
Existing human-computer interaction technologies primarily rely on vision and hearing for information transmission, neglecting the potential of touch as a sensory modality for richer information perception and transmission.
Innovation Solution
A sensing apparatus utilizing a control point matrix with memory alloy layers and elastic layers that deform and vibrate in response to temperature changes, enabling tactile information transmission through controlled current input to adjust vibration frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If human-computer interaction relies primarily on vision and hearing for information transmission, then existing technologies can maintain simplicity in interaction design, but the richness and depth of information perception and transmission are limited
Solution Approach 1:
The sensing apparatus is divided into multiple independent control points arranged in a matrix, where each control point contains a memory alloy layer that can be independently actuated. This segmentation allows complex information to be transmitted through coordinated activation of individual points, enabling rich tactile feedback while maintaining modular simplicity in each unit's design
Solution Approach 2:
Each control point combines a memory alloy layer with underlying support structures and electrodes to create a composite element. The memory alloy layer provides the tactile output capability through temperature-induced deformation, while the composite structure enables precise control and integration into the overall apparatus, resolving the contradiction between functional richness and structural simplicity
2Ease of operation
If memory alloy layers are used to enable tactile output through temperature-induced deformation, then rich tactile information can be transmitted, but precise control of deformation and recovery timing becomes challenging
Solution Approach 1:
The system applies periodic heating and cooling cycles to the memory alloy layers through controlled electrical current. By regulating the frequency and duration of these periodic thermal actions, the apparatus achieves precise control over when each control point deforms and recovers, enabling accurate temporal control of tactile feedback without requiring complex mechanical positioning
Solution Approach 2:
The invention controls the deformation behavior of memory alloy layers by changing thermal parameters (temperature, heating rate, duration) through electrical current regulation. This parameter-based control allows precise adjustment of deformation timing and magnitude, resolving the challenge of controlling tactile feedback precision while maintaining ease of operation through electrical rather than mechanical control
3Loss of information
If multiple control points are arranged in a matrix to enable three-dimensional information transmission, then information transmission richness is enhanced, but the complexity of controlling individual control points increases
Solution Approach 1:
The control circuit is designed with universal control logic that can address any control point in the matrix through standardized electrode connections and control sequences. Each control point uses identical memory alloy and electrode structures, allowing the same control methodology to be applied universally across all points, enabling three-dimensional information transmission without proportionally increasing control complexity
Solution Approach 2:
The invention arranges control points in a two-dimensional matrix that encodes three-dimensional information through spatial positioning and temporal sequencing. By adding the time dimension to the spatial arrangement, the system transmits complex three-dimensional information using a two-dimensional array of control points, reducing the physical complexity while maintaining information completeness
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
Enables three-dimensional information transmission and enhanced tactile feedback, enriching information transmission methods by allowing users to perceive complex data through touch without relying on vision or hearing.
Implementation Method 1
The memory alloy layer can be bent and deformed when a temperature rises, and the elastic layer is configured to drive the deformed memory alloy layer to recover an original shape
Implementation Method 2
the memory alloy layer changes repeatedly between deformation and recovery deformation, and vibration occurs
Implementation Method 3
a current can flow through the memory alloy layer, to adjust the temperature of the memory alloy layer to enable the temperature of the memory alloy layer to fluctuate above and below the specified threshold
Data Source
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AI summary
This application discloses a sensing apparatus, an electronic device, and a control method for the electronic device. The sensing apparatus includes a circuit board and a plurality of control points fixed to the circuit board, and each of the plurality of control points is located at a different position on the circuit board. Each control point includes memory alloy layers and elastic layers that are superposed and fixed in a one-to-one correspondence. The memory alloy layer can be bent and deformed when a temperature rises, and the elastic layer is configured to drive the deformed memory alloy layer to recover an original shape. When temperatures of all the memory alloy layers are lower than a specified threshold, all the memory alloy layers are located in a first plane. When a temperature of a specified memory alloy layer is higher than the specified threshold, the specified memory alloy layer is bent and deformed. Each memory alloy layer is connected to two electrodes for connecting the memory alloy layer to a circuit, so that a current can flow through the memory alloy layer, to adjust the temperature of the memory alloy layer to vibrate the memory alloy layer, thereby transmitting information by touch.