Garment care device with movement sensor
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Solution Overview
Problem
Existing steam iron technologies can only detect binary changes in position, limiting their ability to adjust ironing parameters based on user movement, which can lead to suboptimal ironing results or safety issues like burns or scorching.
Innovation Solution
A garment care device equipped with an accelerometer sensor that generates output signals characterizing movement, allowing a control unit to compare these signals to predefined displacement patterns and adjust operating parameters such as steam generation and temperature, optimizing ironing based on user gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ball sensor is used to detect binary position changes, then safety control is achieved, but the ability to adjust ironing parameters based on user movement is limited
Solution Approach 1:
The patent replaces the mechanical ball sensor system with an accelerometer-based sensing system. The accelerometer uses microelectromechanical systems (MEMS) to detect motion characteristics, replacing the purely mechanical position-detection mechanism with a more sophisticated sensor that can measure acceleration vectors and derive movement patterns, thereby enabling both safety control and adaptive parameter adjustment.
Solution Approach 2:
The patent changes the detection parameter from simple binary position (ball sensor on/off) to continuous motion characteristics (acceleration magnitude, direction, duration). By measuring acceleration vectors along multiple axes and analyzing movement patterns, the system can distinguish between different user gestures and adjust ironing parameters accordingly, while still maintaining safety control through motion-based detection.
2Productivity
If an accelerometer is used to detect movement characteristics, then ironing parameters can be optimized based on user gestures, but device complexity increases
Solution Approach 1:
The accelerometer serves multiple functions simultaneously: it detects safety-critical position changes, measures ironing speed through acceleration analysis, determines tilt angle via vector decomposition, and identifies user gestures through pattern recognition. This multi-functionality reduces the need for separate sensors for each parameter, thereby limiting the increase in device complexity while achieving comprehensive motion-based control.
Solution Approach 2:
The control unit automatically processes accelerometer data to derive multiple ironing parameters without requiring separate user inputs or additional sensors. The system self-calibrates by comparing acceleration patterns against stored reference patterns, automatically adjusting temperature, steam, and speed settings based on detected movement characteristics, thereby managing complexity through automated processing rather than additional hardware.
3Ease of manufacture
If binary position detection is used, then the system is simple to implement, but ironing results may be suboptimal or cause burns
Solution Approach 1:
The patent transitions from static binary position detection to dynamic motion analysis. By continuously measuring acceleration and analyzing movement patterns over time, the system can detect ironing speed variations, pause durations, and gesture sequences. This dynamic approach provides detailed feedback on actual ironing behavior, enabling precise control of temperature and steam parameters to prevent burns while maintaining ironing quality, all processed through the existing control unit without additional hardware complexity.
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 solution enables improved ironing results by adjusting parameters according to user movement, preventing burns and scorching while enhancing safety and efficiency.
Implementation Method 1
a sensor for generating an output signal characterizing a movement of the garment care device, wherein said sensor is an accelerometer
Data Source
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AI summary
The invention relates to a garment care device (100) comprising a sensor (101) for generating an output signal characterizing a movement of said garment care device. The sensor (101) is an accelerometer. The control unit (102) is coupled to the sensor (101). The control unit (102) is adapted to identify and compare characteristics of said output signal to characteristics of a predefined displacement pattern. The predefined displacement pattern corresponds to the amount of a linear displacement along a given direction of the garment care device. The control unit (102) is adapted to adjust at least one operating parameter of the garment care device based on the result of the comparison between characteristics of said output signal and characteristics of said predefined displacement pattern.