Refrigerator and method for controlling the same
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Solution Overview
Problem
Existing refrigerator touch sensor systems struggle to differentiate between intended user inputs and erroneous inputs, particularly when multiple sensors are activated simultaneously, leading to potential malfunctions and user errors, especially in scenarios where the door is closed or impacted.
Innovation Solution
A touch sensor assembly with a sensor controller that processes signals from multiple sensors, determining erroneous inputs when simultaneous signals exceed a preset reference value, and allowing entry into special modes for sensitivity adjustment and error prevention, using a display assembly to communicate these changes to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sensors are used to detect touch input on the front panel, then the reliability of touch detection is improved, but the likelihood of erroneous simultaneous sensor activation increases
Solution Approach 1:
The sensor controller implements a feedback mechanism where it monitors signals from multiple sensors and automatically identifies when simultaneous activation occurs, treating it as an erroneous input. This feedback loop allows the system to self-correct by ignoring conflicting sensor signals and only processing valid sequential touch inputs.
Solution Approach 2:
The system dynamically adjusts its response based on the timing and sequence of sensor activations. By implementing a time-based validation logic, the controller can distinguish between intentional simultaneous presses (erroneous) and sequential presses (valid), adapting its acceptance criteria based on the detected pattern.
2Ease of operation
If a special mode is added for sensitivity adjustment and error prevention, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The sensor controller serves multiple functions: it detects touch inputs, validates signal sequences, identifies erroneous simultaneous activations, and allows sensitivity adjustment in a special mode. By consolidating these diverse functions into a single controller unit, the system achieves multi-functionality without proportionally increasing overall device complexity.
Solution Approach 2:
The system provides self-service capabilities through the special mode, allowing users to adjust sensitivity settings and prevent erroneous inputs without requiring external assistance or complex calibration procedures. The controller automatically manages sensitivity parameters based on user input in the special mode.
Data Source
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AI summary
According to an embodiment for a refrigerator (1), a plurality of touch parts (12) may be manipulated to enter into a special mode, thereby preventing the refrigerator (1) from malfunctioning. The touch sensitivity adjustment of the refrigerator (1) due to the touch manipulation of the refrigerator (1) may be visualized.