Air-Conditioning System Autonomous Control for Mold Prevention

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Solution Overview

Problem

Existing conditioning apparatuses require user intervention for programming, leading to potential mold formation due to incorrect environmental condition adjustments, increased energy consumption, and health hazards from mold growth, especially when users are absent for extended periods.

Innovation Solution

A method to autonomously control a conditioning apparatus using integrated or remote sensors to detect and average temperature and humidity values, calculate a mold risk factor, and activate the system when conditions are conducive to mold growth, directing airflow to affected areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the conditioning apparatus is activated for extended periods to prevent mold formation, then the mold prevention effectiveness is improved, but the energy consumption increases

Engineering Contradiction:
Improvemold prevention effectivenessVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The control unit continuously monitors environmental conditions (temperature, humidity, occupancy) and adjusts the conditioning apparatus operation accordingly. This feedback mechanism ensures the system runs only when necessary to prevent mold, avoiding unnecessary energy consumption while maintaining effective mold prevention through real-time condition-based activation

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically changes operational parameters (activation timing, duration, intensity) based on detected environmental conditions. By adjusting these parameters according to real-time data about temperature, humidity levels, and occupancy, the system optimizes the balance between mold prevention effectiveness and energy consumption

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the user directly programs the conditioning apparatus, then the ease of operation is improved, but the adaptability to environmental conditions deteriorates

Engineering Contradiction:
Improveprogramming simplicityVSAvoidadaptability to environmental conditions
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The conditioning apparatus automatically monitors environmental conditions and adjusts its operation without requiring user programming. The control unit independently evaluates temperature, humidity, and occupancy data to determine optimal activation times, enabling the system to adapt to changing environmental conditions while maintaining simple operation for the user

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates continuous environmental monitoring with automatic response. Sensors detect changes in temperature, humidity, and occupancy, providing feedback to the control unit which automatically adjusts operation. This eliminates the need for complex user programming while maintaining high adaptability to environmental conditions

Inventive Principle:
Principle #23Feedback

3Use of energy by moving object

If the conditioning apparatus remains inactive during user absence, then the energy consumption is reduced, but the mold formation risk increases

Engineering Contradiction:
Improveenergy consumptionVSAvoidmold formation risk
Core Design Contradiction:
Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The system activates the conditioning apparatus in advance based on predicted occupancy patterns and environmental conditions. By proactively adjusting environmental parameters before conditions become conducive to mold growth, the system prevents mold formation during user absence without requiring continuous operation, thus reducing energy consumption while maintaining safety

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The control unit continuously monitors environmental conditions and activates the conditioning apparatus when sensor data indicates conditions are approaching thresholds that could promote mold growth. This feedback-driven approach ensures the system runs only when necessary to prevent mold during absence, optimizing the balance between energy consumption and mold prevention

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3881009B1Method of controlling an air-conditioning system
Publication Date: 2023.09.06 DE LONGHI APPLIANCES SRL
  • EP3881009B1 patent drawingFigure 1~2
  • EP3881009B1 patent drawingFigure 3

AI summary

A method is described to control a conditioning apparatus (10) to prevent or reduce the risk or likelihood that molds will form, proliferate and grow, in particular in internal spaces conditioned by the conditioning apparatus (10). The control method provides to receive information that is characteristic of the room to be conditioned (50) indicative of the thermal state of this room, to calculate a risk factor indicative of the likelihood of mold formation in the room to be conditioned (50), in which the risk factor is a function of the characteristic information, and to compare the risk factor with a respective threshold value, in which it is provided to activate the conditioning apparatus (10) for a determinate interval of time when the outcome of the comparison of the risk factor calculated with the respective threshold value reveals a high risk of mold formation.