Pool Temperature Control Using Multi-Source Heater Switching

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing temperature control systems for pools and spas lack efficiency and flexibility in heating, as they often rely on a single heating source and do not effectively utilize ambient conditions to optimize energy use.

Innovation Solution

A programmable temperature control system that uses a microprocessor-based controller connected to various sensors and actuators to select the most efficient heating sources, including gas, electric, and solar heaters, based on ambient conditions and user-defined temperature and time specifications, allowing for manual or programmed operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a single heating source is used, then the system is simple to operate, but the heating efficiency and flexibility are limited

Engineering Contradiction:
Improveoperation simplicityVSAvoidheating flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The heating system is divided into multiple independent heating sources (solar heater, gas heater, electric heater), each capable of operating independently or in combination. The controller segments the heating function across these multiple sources, allowing selective activation based on ambient conditions and user preferences, thus providing both operational simplicity through automated selection and heating flexibility through multiple available sources.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control system is designed to universally manage multiple types of heating sources through a single interface. The controller can identify and operate with solar, gas, and electric heaters, making the system adaptable to different heating configurations while maintaining ease of operation through a unified control mechanism.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If conventional heating sources are used, then the system is reliable, but energy efficiency is reduced

Engineering Contradiction:
Improveheating reliabilityVSAvoidenergy efficiency
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary assessment of ambient conditions (sunlight availability, temperature, humidity) before activating heating sources. The controller proactively determines the most efficient heating approach based on current environmental factors, prioritizing solar heating when conditions permit, thereby improving energy efficiency while maintaining reliable heating through fallback conventional sources.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically changes operational parameters by selecting different heating sources based on ambient conditions. When solar energy is sufficient, the system transitions to solar-powered heating; when conventional heating is needed, it switches to gas or electric sources. This parameter change in energy source selection optimizes energy efficiency while preserving heating reliability through multiple available options.

Inventive Principle:
Principle #35Parameter changes

3Use of energy by moving object

If multiple heating sources are integrated, then energy efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveheating efficiencyVSAvoidsystem complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The control system performs self-service by automatically identifying available heating sources and selecting the most efficient one based on ambient conditions without requiring manual intervention. The system autonomously monitors solar panel output, ambient temperature, and heater availability, then independently decides which heating source to activate, reducing the perceived complexity for the user while maintaining high heating efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements feedback mechanisms where sensors continuously monitor ambient conditions (light, temperature, humidity) and heater performance. This feedback loop allows the controller to dynamically adjust heating source selection, optimizing energy efficiency while managing system complexity through automated decision-making based on real-time data rather than requiring complex manual control.

Inventive Principle:
Principle #23Feedback

4Productivity

If automated temperature control is implemented, then productivity is improved, but loss of time for programming increases

Engineering Contradiction:
Improvetemperature control efficiencyVSAvoidprogramming time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system provides pre-configured temperature profiles that can be quickly selected and modified, rather than requiring extensive custom programming. Users can choose from preset profiles or make simple adjustments, reducing the time investment needed while maintaining automated temperature control efficiency. The system is designed to be easily reconfigured without significant programming effort.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system efficiently maintains desired water temperatures by dynamically switching between heating sources, optimizing energy use and reducing operational costs by leveraging solar power when available, thus enhancing heating efficiency and flexibility.

Implementation Method 1

The plurality of heaters includes a solar heater

Methodology Applied
Scientific EffectSolar energy absorption: Solar Energy

Data Source

PatentUS11256274B2Programmable temperature control system for pools and spas
Publication Date: 2022.02.22 HAYWARD IND INC
  • US11256274B2 patent drawing
  • US11256274B2 patent drawing
  • US11256274B2 patent drawing

AI summary

A system and method are provided for controlling water temperature in a body of water. The temperature control system includes a processor, a user interface for receiving a desired temperature and a desired time for reaching the desired temperature, a sensor interface for receiving sensor information from one or more sensors, and an actuator interface for controlling a plurality of heat sources. The processor determines one or more optimal heat sources for heating the body of water to the desired temperature by the desired time. The processor controls the one or more optimal heat sources through the actuator interface and periodically polls the sensor interface to determine whether changes in the operating environment require additional or alternate heat sources to be activated to ensure that the body of water is heated to the desired temperature by the desired time.