Domestic appliance system
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Solution Overview
Problem
Existing household appliance systems lack operating convenience due to inaccuracies in determining the permissible range for external unit operation, requiring manual confirmation and increased operator effort.
Innovation Solution
A control unit that automatically checks the presence of an external unit within a predefined operating range, enabling or blocking operation based on signal strength and legal requirements, and performs characterization processes to ensure precise and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the control unit checks whether the external unit is arranged in an operating range independently of room layout, then the operation is simplified and operating convenience is improved, but the accuracy of determining permissible operation is reduced
Solution Approach 1:
The control unit performs a characterization process in advance to determine device-specific signal strength characteristics of the external unit. This preliminary action stores reference values that enable accurate operating range determination without requiring manual input or complex real-time calculations, thus resolving the contradiction between simplified operation and accurate determination.
Solution Approach 2:
The system uses signal strength measurements as feedback to automatically determine whether the external unit is within the operating range. The control unit continuously monitors the signal strength and compares it against the characterized reference values, enabling automatic accurate determination without manual confirmation, thereby improving both operating convenience and measurement precision.
2Reliability
If the control unit requires manual confirmation after receiving an operating signal, then the accuracy of operation permission is improved, but the operating effort and time are increased
Solution Approach 1:
The control unit performs self-verification by automatically checking whether the external unit is within the operating range using the characterized signal strength values. This self-service mechanism eliminates the need for manual confirmation while maintaining accurate operation permission determination, thus resolving the contradiction between reliability and time loss.
Solution Approach 2:
The characterization process is performed in advance to establish reference signal strength values. This preliminary action enables the control unit to automatically and accurately determine operating permission without requiring manual confirmation, thereby improving both reliability and reducing operating time.
3Measurement precision
If the control unit performs characterization process for each external unit, then the precision of operation control is improved, but the device complexity and setup time are increased
Solution Approach 1:
The characterization process determines device-specific signal strength parameters (such as reference signal strength values) for each external unit. By focusing on characterizing only the essential signal strength parameter rather than comprehensive device properties, the system achieves precise operation control while minimizing the complexity of the characterization process.
Data Source
AI summary
A household appliance system includes a household appliance, an external unit for operating the household appliance, and a control unit designed to perform a characterization process and to enable operation of the household appliance by the external unit, when the characterization process has been completed.