Wireless Charging Insole for Wearable Plantar Pressure Sensing
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Solution Overview
Problem
Current health management systems, such as clinical pressure test plates and benches, lack wearability and accurately measure plantar pressure distribution, which differs from actual walking conditions due to inflexibility and lack of elasticity, limiting their application in fields like biomechanics and sports training.
Innovation Solution
A wearable insole with an embedded sensing system comprising a flexible pressure sensing layer, an infrared sensing layer, and a sensing module integrated into the arch support, featuring capacitive sensors and wireless data transmission, designed to provide real-time foot pressure and blood circulation data without displacing within the shoe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional clinical pressure test plates and benches are used, then measurement precision of plantar pressure distribution is achieved, but wearability and flexibility are lost
Solution Approach 1:
The patent uses a flexible pressure sensing layer with capacitive sensors that can conform to the contoured shape of the insole, allowing the system to be worn inside shoes while maintaining measurement precision. The flexible nature enables natural foot movement and comfortable wearing experience.
Solution Approach 2:
The pressure sensing layer is embedded within the insole structure, which itself is placed inside the shoe. This nested configuration allows the measurement system to be integrated into the existing footwear without disrupting normal shoe function or foot comfort.
2Measurement precision
If multiple sensors are inserted into the insole to form a sensing system, then measurement capability is improved, but device complexity and difficulty of integration increase
Solution Approach 1:
The patent combines multiple sensing functions (pressure detection, infrared sensing) into a single integrated sensing module that is embedded in the arch support area of the insole. This consolidation reduces the number of separate components and simplifies integration into the insole structure.
Solution Approach 2:
The sensing module is designed to perform multiple functions including pressure distribution measurement and infrared sensing, allowing a single component to replace what would otherwise require multiple separate sensors and processing units.
3Adaptability or versatility
If rigid electronic components are used in the insole, then functional capability is improved, but flexibility and comfort are reduced
Solution Approach 1:
The pressure sensing layer is constructed as a flexible film that can bend and stretch with the foot's natural movements. This flexible construction maintains functional sensing capability while adapting to the dynamic contours of the foot and insole structure.
Solution Approach 2:
The sensing system is designed to be dynamic rather than static, allowing the flexible pressure sensing layer to adapt its shape and position as the foot moves within the shoe. This dynamic adaptability maintains both functionality and comfort during active use.
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 natural and comfortable data collection of foot pressure distribution and blood circulation information, facilitating personalized health management and sports performance analysis, breaking the limitations of traditional testing methods by providing accurate, wearable, and flexible data collection.
Implementation Method 1
the pressure sensing layer comprises a plurality of capacitive pressure sensors or resistive pressure sensors
Implementation Method 2
the pressure sensing layer comprises a plurality of capacitive pressure sensors or resistive pressure sensors
Implementation Method 3
an Infrared sensing layer, configured within the insole
Data Source
AI summary
An insole with wireless charging system includes a pressure sensing layer arranged on the insole, a sensing device is formed in the insole to detect speed, distance, direction, acceleration, angular orientation or any combination thereof. An inductive coil is formed in the insole for wireless charging a battery.