Sensor Attachment Verification for Home Appliance Failure Diagnosis
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Solution Overview
Problem
The accuracy of failure diagnosis in home appliances is compromised due to improper attachment of sensor units, leading to erroneous results, as the determination of proper attachment is currently reliant on user methods without any prior art documentation.
Innovation Solution
A failure diagnosis system comprising a communication unit, data comparison unit, and eligibility determination unit that acquires and compares physical quantity data from sensor units with control information to determine the eligibility of the data for diagnosis, ensuring accurate attachment and diagnosis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sensor unit is attached to the home appliance by the user without automated verification, then the ease of operation is improved, but the measurement precision deteriorates due to improper attachment
Solution Approach 1:
The system performs preliminary verification of sensor unit attachment appropriateness before allowing failure diagnosis to proceed. The eligibility determination unit checks whether the sensor unit is properly attached by comparing physical quantity data with control information, and only permits diagnosis when attachment is confirmed appropriate, thus preventing erroneous results while maintaining ease of use
Solution Approach 2:
The system provides feedback to the user about the attachment status of the sensor unit. The eligibility determination unit notifies the user when the sensor unit is not appropriately attached, allowing correction before diagnosis begins. This feedback mechanism ensures measurement precision without complicating the attachment process
2Measurement precision
If automated verification of sensor attachment is implemented, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The eligibility determination unit serves multiple functions: it verifies sensor attachment appropriateness, compares physical quantity data with control information, and determines whether failure diagnosis should proceed. By consolidating these functions into a single unit, the system achieves automated verification without proportionally increasing device complexity
Solution Approach 2:
The eligibility determination unit acts as an intermediary between the sensor unit and the failure diagnosis process. It mediates by comparing data from the sensor unit with control information and deciding whether the diagnosis can proceed, thus adding verification capability while maintaining clear system architecture
Data Source
AI summary
A failure diagnosis device includes a communication unit, a data comparison unit, and an eligibility determination unit. The communication unit acquires first physical quantity data and second physical quantity data of a type different from that of the first physical quantity data that are used for performing failure diagnosis of a home appliance acquired by a sensor unit, and first control information related to the second physical quantity data acquired by the home appliance. The data comparison unit compares the second physical quantity data with the first control information. The eligibility determination unit determines whether or not the first physical quantity data is eligible as data used for the failure diagnosis based on a comparison result obtained by the data comparison unit.