Multi-Airconditioner Trial-Run Control for Installation Fault Detection

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Solution Overview

Problem

Conventional multi-airconditioner trial run modes are inconvenient and inaccurate, as users must manually inspect and control multiple indoor units and an outdoor unit, struggling to recognize proper installation and operation states, especially due to variations in installation position and seasonal factors.

Innovation Solution

A dedicated trial-run-mode controller connects to the outdoor unit, automatically detecting poor installations, controlling individual indoor units remotely, and monitoring temperature and state information of pipes and units, providing a control input and state display for accurate operation monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual inspection and control methods are used during trial run mode, then device complexity is reduced, but ease of operation deteriorates due to the need for users to physically inspect multiple units and recognize installation states

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

A dedicated trial-run-mode controller is introduced as an intermediary device between the user and the multi-airconditioning system. This controller automatically detects installation states, controls indoor units, and monitors operation status, eliminating the need for manual inspection while providing comprehensive system status information to resolve the contradiction between ease of operation and device complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The trial-run-mode controller enables the system to perform self-diagnosis and self-monitoring during trial run mode. The controller automatically detects poor installation, monitors indoor and outdoor unit states, and provides feedback without requiring user intervention, thereby improving ease of operation while maintaining manageable device complexity through automated functions

Inventive Principle:
Principle #25Self-service

2Measurement precision

If manual inspection methods are used during trial run mode, then device complexity is reduced, but measurement precision deteriorates due to difficulty in recognizing proper installation and operation states

Engineering Contradiction:
Improvemeasurement precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The dedicated trial-run-mode controller serves as an intermediary that automatically detects and monitors installation states and operation parameters. It precisely measures and identifies the state of each indoor unit and the outdoor unit, providing accurate feedback to resolve the contradiction between measurement precision and device complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The trial-run-mode controller implements a feedback mechanism that continuously monitors system status, detects poor installation conditions, and provides real-time information about operation states. This feedback system enables precise measurement and recognition of installation and operation states without requiring complex manual inspection procedures

Inventive Principle:
Principle #23Feedback

3Ease of operation

If a dedicated trial-run-mode controller is introduced to automatically control and monitor the system, then ease of operation improves, but device complexity increases

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The dedicated trial-run-mode controller acts as a specialized intermediary device that handles only trial run mode operations. It automatically controls indoor units, monitors system status, and detects installation issues, thereby improving ease of operation while containing device complexity within a dedicated component rather than complicating the entire system

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The control system is segmented into a dedicated trial-run-mode controller and the main control system. The trial-run-mode controller handles specific trial run functions independently, providing ease of operation for trial run mode while keeping the overall device complexity manageable through functional segmentation

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS7735328B2Apparatus and method for monitoring state information in trial run mode of multi-airconditioner
Publication Date: 2010.06.15 LG ELECTRONICS INC
  • US7735328B2 patent drawing
  • US7735328B2 patent drawing
  • US7735328B2 patent drawing

AI summary

An apparatus and method for monitoring state information in a trial run mode of a multi-airconditioning system in which a plurality of indoor units are controlled by only one outdoor unit is disclosed. The apparatus and method connects a dedicated controller to the outdoor unit in a trial run mode of the multi-airconditioning system, such that it controls the indoor units and monitors state information of the indoor and outdoor units. The apparatus includes a trial-run-mode controller and a control input & state display unit. The trial-run-mode controller connected to the outdoor unit includes a trial-run-mode program for automatically detecting poor installation of the multi-airconditioning system. The control input & state display unit is connected to the trial-run-mode controller, enters control signals capable of performing control and monitoring operations of the trial run mode executed after the multi-airconditioning system has been installed, and outputs information associated with the control signals.