Pool Water Balance Control Using Relevance-Based Chemical Dosing

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Solution Overview

Problem

Existing methods for maintaining the balance of physicochemical parameters in swimming pool water, such as pH, TAC, and TH, are inadequate as they do not account for interactions between parameters, leading to potential overconsumption of chemical agents and equipment damage, and manual calculations can introduce errors.

Innovation Solution

A computer-implemented method that dynamically adjusts corrective actions based on multiple physicochemical parameters, considering interactions and environmental factors, using a processing unit to manage chemical agent dispensing and provide user support, optimizing resource management and equipment sustainability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical agents are supplied to restore balance, then the physicochemical parameter balance is recovered, but unnecessary or harmful overconsumption occurs

Engineering Contradiction:
Improvebalance recoveryVSAvoidchemical agent overconsumption
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The system performs preliminary actions by estimating the relevance of corrective actions before actually applying them. It calculates the expected impact of adding chemical agents and only proceeds when the estimated relevance indicates a genuine need, preventing unnecessary overconsumption while ensuring balance recovery when required.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors physicochemical parameters and uses this feedback to dynamically adjust corrective actions. By comparing current parameter values with target ranges and evaluating the estimated relevance of interventions, the system optimizes chemical agent dosage to restore balance without overconsumption.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If manual calculations are used to determine chemical agent dosage, then flexibility is maintained, but errors are introduced

Engineering Contradiction:
Improvedosage adjustment flexibilityVSAvoiddosage calculation accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system performs self-service by automatically estimating the relevance of corrective actions and determining optimal chemical agent dosages based on monitored parameters. This eliminates manual calculation errors while maintaining adaptability, as the system autonomously adjusts dosages according to real-time water quality conditions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces manual mechanical calculation processes with automated computational methods. A processing unit calculates the estimated relevance of corrective actions based on sensor data, substituting human manual calculations with precise, error-free automated computations that maintain flexibility in dosage adjustment.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If chemical agents are supplied to disinfect water, then microorganisms are eliminated, but equipment damage can occur from uncontrolled quantities

Engineering Contradiction:
Improvedisinfection effectivenessVSAvoidequipment damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary assessment by estimating the relevance of chemical agent addition before actually adding it. It evaluates whether the current parameter values indicate a genuine need for disinfection and calculates the appropriate dosage, ensuring effective microorganism elimination while preventing harmful overconsumption that could damage equipment.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system monitors and responds to changes in physicochemical parameters to dynamically adjust disinfection strategies. By detecting parameter deviations and calculating the estimated relevance of corrective actions, the system applies chemical agents only when necessary and in precise quantities, maintaining disinfection effectiveness while avoiding equipment damage from uncontrolled dosing.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3558111B1Method for maintaining an equilibrium of a physico-chemical parameter of a medium, associated computer program product and electronic module
Publication Date: 2025.08.20 ONDILO
  • EP3558111B1 patent drawingFigure 1~2
  • EP3558111B1 patent drawingFigure 3

AI summary

The invention relates to a method (100) for maintaining an equilibrium of a physico-chemical parameter of a medium, and for recovering said equilibrium in case of loss of the latter. More precisely said method makes it possible to estimate the relevance of a corrective action on said medium in order to recover an equilibrium. The method (100) is implemented by the processing unit (UT) of a system for regulating said medium. The invention applies in a nonlimiting manner to the regulation of the equilibrium of the bathing water of a swimming pool.