Adaptive Safety Seat Back with Sensor-Driven Shape Adjustment
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Solution Overview
Problem
Conventional safety seats do not adequately accommodate varying body shapes, leading to discomfort for users due to fixed inherent shapes that do not suit all individuals, despite adjustable features like seat back angle and headrest height.
Innovation Solution
A safety seat with a shape-adjustable framework and a flexible covering part equipped with sensors to detect and match the user's back shape, using a data processing device and driving structure to adjust the framework and covering part for optimal comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the seat back has a fixed inherent shape, then the manufacturing cost and structural complexity are reduced, but the comfort for users with different body shapes deteriorates
Solution Approach 1:
The seat back framework is designed as a dynamic structure with multiple support rods connected by rotatable joints, allowing the seat back to change its shape from a fixed inherent form to a customized contour that adapts to different user body shapes, thereby resolving the contradiction between manufacturing simplicity and adaptability
Solution Approach 2:
The system changes the geometric parameters of the seat back by adjusting the angles between adjacent support rods through rotatable connections, transforming the seat back shape to match different body contours while maintaining a relatively simple manufacturing process for the individual components
2Adaptability or versatility
If the seat back shape is adjusted to match different body shapes, then the comfort for users is improved, but the device complexity increases
Solution Approach 1:
The seat back framework is segmented into multiple independent support rods connected by rotatable joints, allowing each segment to be adjusted independently to match different body shapes while keeping the overall structure relatively simple and modular
Solution Approach 2:
The system uses sensors to automatically detect user body shape and the data processing device to calculate the optimal seat back contour, enabling the seat back to self-adjust without manual intervention, thereby reducing operational complexity despite the increased structural complexity for shape adjustment
3Adaptability or versatility
If sensors and automatic adjustment systems are added, then the personalized comfort is improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The seat back system automatically detects user body shape through sensors and self-adjusts its contour without manual intervention, providing personalized comfort while minimizing the need for complex user interfaces or manual adjustment mechanisms
Solution Approach 2:
The system incorporates sensors that detect user body shape and provide feedback to the data processing device, which then calculates and executes the appropriate seat back shape adjustment, creating a closed-loop feedback system that achieves personalized comfort through automated control
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 safety seat provides personalized comfort by automatically adjusting to the user's body shape, ensuring uniform pressure distribution and improved sitting experience through sensor-activated adjustments.
Implementation Method 1
The plurality of sensors is a plurality of pressure sensors configured to sense pressures applied on the covering part by a back of the person sitting on the safety seat and obtain pressure signals corresponding to the pressures
Data Source
AI summary
A safety seat is provided, including a seat base and a seat back. The seat back includes a framework adjustable in shape and a covering part covering the framework and made of flexible material. A surface of the covering part is provided with multiple sensors for obtaining back position information of a person sitting on the safety seat. The safety seat further includes a data processing device and a driving structure. The data processing device is for receiving the back position information, determine a shape of a back surface of the person and send a covering part adjustment signal. The driving structure is for adjusting a shape of the framework according to the covering part adjustment signal and changing a shape of the surface of the covering part by changing the shape of the framework so as to match the shape of the back surface of the person.