Air-Conditioning Remote Controller with Time-Based Diagnostic Tables
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Solution Overview
Problem
Conventional air-conditioning system remote controllers lose diagnostic accuracy over time due to the lack of updated operation-state diagnosing tables, which do not account for system deterioration during long-term use.
Innovation Solution
A remote controller with a communication unit for bidirectional communication and a memory that stores multiple operation-state diagnosing tables for different operation modes and times, allowing for the selection of appropriate tables based on the system's operation mode and time of use, ensuring accurate diagnostics even after prolonged use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single operation-state diagnosing table is used from the start of use, then device complexity is reduced and ease of operation is improved, but measurement precision deteriorates over time due to system deterioration
Solution Approach 1:
The single diagnosing table is segmented into multiple tables corresponding to different operation time periods (e.g., first period, second period, third period). Each table contains threshold values appropriate for that specific time period, allowing the system to select the appropriate table based on current operation time, thereby maintaining diagnosing accuracy without requiring a single complex adaptive table
Solution Approach 2:
Multiple diagnosing tables with pre-calculated threshold values for different time periods are prepared in advance before system operation begins. This eliminates the need for real-time calculation or adaptation during operation, maintaining simplicity while ensuring accuracy matches the actual deterioration state of the system
2Reliability
If the same operation-state diagnosing table is used throughout the system lifetime, then ease of manufacture and operation are improved, but reliability deteriorates due to accumulated system deterioration
Solution Approach 1:
The system transitions from a static single diagnosing table to a dynamic multi-table selection mechanism. The control unit automatically selects the appropriate diagnosing table based on the current operation time, making the system adaptive to deterioration while keeping the selection process automated and simple for the user
Data Source
AI summary
A remote controller of an air-conditioning system enables operation state diagnosing. A remote controller of an air-conditioning system having an outdoor device, and an indoor device connected to the outdoor device includes a communication unit that performs bidirectional communication with the indoor device in a wired or wireless manner, and a memory that has stored therein operation-state diagnosing tables for every operation mode that are used in maintenance and inspection of the air-conditioning system. An appropriate one of the operation-state diagnosing tables is used according to an operation mode and an operation time of the air-conditioning system.