Connected Textile Sensor Wires for Multi-Parameter Surface Detection
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Solution Overview
Problem
Existing textile sensor technologies are limited to small or large surfaces and are not multifunctional, only detecting a single parameter at a time, such as mechanical stress, water, or temperature.
Innovation Solution
A connected sheet or textile equipped with sensor wires composed of insulating and conductive components that can detect multiple parameters, including mechanical stress, humidity, and temperature, suitable for both small and large surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If textile sensor solutions are designed for small surfaces using piezoresistive materials, then detection sensitivity is improved, but the applicable surface area is limited
Solution Approach 1:
The sheet is divided into multiple sensor wires that can be arranged in different patterns (parallel, grid, mesh) to cover various surface areas. Each sensor wire acts as an independent detection element that can be selectively activated based on the application requirements, enabling the system to adapt from small to large surface coverage while maintaining detection sensitivity.
Solution Approach 2:
The sensor wires are designed to detect multiple parameters simultaneously (mechanical stress, humidity, temperature) and can be configured for different surface areas. The same basic sensor wire structure serves both small and large surface applications, eliminating the need for completely different sensor technologies for different scale requirements.
2Area of stationary object
If optical fibers are used for very large surfaces, then the applicable surface area is improved, but detection sensitivity and precision decrease
Solution Approach 1:
Instead of using a single optical fiber system for large surfaces, the invention segments the detection function into multiple discrete sensor wires that can be distributed across the surface. This segmentation allows each individual sensor wire to maintain high detection sensitivity while collectively covering large surface areas through coordinated arrangement.
3Device complexity
If single-parameter sensors are used, then device complexity is reduced, but functionality and versatility are limited
Solution Approach 1:
The sensor wire is designed as a multifunctional element that can detect mechanical stress, humidity, and temperature simultaneously. This multi-functionality is achieved by incorporating different sensing mechanisms within the same sensor wire structure, allowing a single device to replace multiple specialized sensors while maintaining relative structural simplicity.
Solution Approach 2:
The sensor wire incorporates composite structures combining conductive and insulating fibers, along with different sensing materials that respond to various parameters. This composite approach enables multiple detection capabilities within a unified sensor structure, achieving versatility without proportionally increasing complexity.
4Measurement precision
If multiple separate sensors are used to detect different parameters, then detection accuracy for each parameter is improved, but device complexity increases
Solution Approach 1:
The invention merges multiple sensing functions into a single integrated sensor wire structure. Different sensing capabilities (mechanical stress detection through conductive fiber contact, humidity detection through hygroscopic materials, temperature detection through thermistors) are combined within the same physical sensor wire, maintaining detection accuracy for each parameter while significantly reducing system complexity compared to using separate sensors.
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 enables simultaneous detection of multiple parameters with high sensitivity and reliability, allowing for precise localization of stress and moisture over large areas, even in the presence of surface irregularities.
Implementation Method 1
The sensor comprises at least one sensor wire (3) arranged on the support (2). Each sensor wire comprises conductive and insulating components intimately linked and arranged to allow formation of conductive bridges between the conductive components.
Implementation Method 2
When pressure is applied to the sensor, electrical conduction occurs between the two conductive elements, enabling the control.
Implementation Method 3
A connected sheet or textile equipped with sensor wires composed of insulating and conductive components that can detect multiple parameters, including mechanical stress, humidity, and temperature
Implementation Method 4
Each sensor wire comprises conductive and insulating components intimately linked and arranged to allow formation of conductive bridges between the conductive components
Data Source
Figure 1~2c
Figure 3~5
Figure 6~8
AI summary
The present invention relates to a sheet (1) comprising a support (2) made from a non-electrically conductive material and at least one sensor wire (3) associated with the support, characterised in that the wire reacts electrically to an external stress.