Air-conditioning system

Solution Overview

Problem

Air-conditioning systems that perform rotation operations and human detection-based control often result in excessive operation, leading to unnecessary power consumption and reduced system lifespan, as deactivated air conditioners are unnecessarily activated when human presence is detected.

Innovation Solution

The air-conditioning system is configured to keep air conditioners deactivated during rotation operations even when human detection sensors sense the presence of humans, preventing excessive activation and maintaining power efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the rotation operation and human detection control are combined, then the air-conditioning system can respond to human presence, but the target space is air-conditioned excessively leading to unnecessary power consumption

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The system dynamically adjusts the operational state of air conditioners based on the rotation operation mode. When rotation operation is active, the control unit prevents human detection control from activating deactivated air conditioners, creating a dynamic control hierarchy that adapts to different operational modes to avoid excessive operation and energy waste

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If deactivated air conditioners are activated when human presence is detected, then comfort is improved, but the life of the air-conditioning system is shortened

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The control unit dynamically manages the operational status of air conditioners by implementing a rotation operation that systematically controls which units are active and which are deactivated. This dynamic management prevents unnecessary activation of deactivated units, reducing wear and extending system life while maintaining adequate cooling capacity through the active units

Inventive Principle:
Principle #15Dynamics

3Power

If multiple air conditioners operate simultaneously, then the air-conditioning capacity is increased, but the power consumption increases

Engineering Contradiction:
Core Design Contradiction:
PowerVSLoss of energy

Solution Approach 1:

The rotation operation implements partial action by deactivating one or more air conditioners when others are already providing sufficient air-conditioning capacity. This partial operation strategy reduces overall power consumption while maintaining adequate cooling performance, avoiding the excessive action of running all air conditioners simultaneously

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP3043119B1Air-conditioning system
Publication Date: 2021.04.07
  • EP3043119B1 patent drawingFigure 1~2
  • EP3043119B1 patent drawingFigure 3
  • EP3043119B1 patent drawingFigure 4

AI summary

Disclosed herein is an air-conditioning system including air conditioners (10). Each of the air conditioners (10) that has been deactivated under a rotation operation remains inactive even if a human detection sensor (51) senses the presence of a human in a room. This may prevent excessive operation of the air conditioners, reduce power consumption, and extend the life of the entire system.