Air-Conditioner Identifier Mapping for Repair Continuity

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Solution Overview

Problem

Existing device management systems fail to maintain consistent management of devices after repair or replacement, recognizing them as different entities.

Innovation Solution

A device management system that includes a device management apparatus with a storage unit for unique device identifiers, a sending and receiving unit, and identifier conversion units to maintain device identity by converting new identifiers to original identifiers upon change.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a device is repaired or replaced and the first identifier is changed to a third identifier, then the device configuration can be updated, but the device management system recognizes it as a different device, losing continuous management capability

Engineering Contradiction:
Improvedevice configuration flexibilityVSAvoiddevice identity continuity
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent introduces a second identifier (communication identifier) as an intermediary that remains unchanged during device repairs or replacements. This intermediary identifier serves as a stable link between the device management apparatus and the device, allowing the first identifier to change while maintaining continuous management capability through the unchanged second identifier

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent transitions from relying on a single first identifier for device management to a two-dimensional identifier system combining first identifier (device-specific) and second identifier (communication-specific). This dimensional expansion allows independent changes in the first identifier without affecting management continuity, as the second identifier provides an alternative identification path

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If the device management system uses a first identifier unique to the device for management, then individual device management is achieved, but when the device is repaired or replaced, the system cannot recognize it as the same device

Engineering Contradiction:
Improvedevice identification accuracyVSAvoiddevice management consistency
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent changes the identification parameter from a single static first identifier to a combination of first identifier and second identifier. The second identifier remains constant through repairs and replacements, providing a reliable parameter that maintains management consistency while allowing the first identifier to change as needed

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12547138B2Device management system
Publication Date: 2026.02.10 MITSUBISHI ELECTRIC CORP
  • US12547138B2 patent drawing
  • US12547138B2 patent drawing
  • US12547138B2 patent drawing

AI summary

A device management system includes: an air-conditioning apparatus and a server with a storage, a controller. The storage stores a first identifier unique to the air-conditioning apparatus and a second identifier different from the first identifier and uniquely identifying the air-conditioning apparatus in communication with the server. The controller receives the second identifier and a third identifier changed from the first identifier when the air-conditioning apparatus configuration is changed. The controller detects a change from the first identifier to a third identifier when the second identifier matches the second identifier stored in the storage. The controller converts the third identifier to the first identifier. The server controls operation of the air-conditioning apparatus that sent the third identifier as a replacement or repair of the air-conditioning apparatus.