HVAC Controller Interface for Forecast-Based Air Quality Control

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Solution Overview

Problem

HVAC systems lack the ability to adjust operating parameters based on weather forecasts and air quality data, limiting their efficiency and user control, especially in complex settings where users may not understand how to optimize system components.

Innovation Solution

A controller system that receives weather and air quality data to adjust operating parameters, such as temperature set points and air treatment device operations, using a graphical user interface for user input and a processor to control the HVAC system, including a communication interface for data receipt and a dispenser for air treatment substances.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional thermostat user interface is used, then the system is simple to operate, but the user cannot adjust complex parameters or understand system component interactions

Engineering Contradiction:

Improveuser interface simplicityVSAvoidparameter adjustment capability

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The user interface is segmented into multiple levels: a simplified thermostat interface for basic temperature control and a advanced graphical user interface for complex parameter adjustment. This allows users to access only the complexity they need, resolving the contradiction between simplicity and versatility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A microprocessor-based controller acts as an intermediary between the simple thermostat interface and the complex HVAC system. It translates simple user inputs into coordinated commands for multiple system components, enabling complex control without requiring users to understand system intricacies.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If the HVAC system operates without weather forecast integration, then the system structure remains simple, but the system cannot dynamically adjust to changing climate conditions

Engineering Contradiction:

Improvesystem structureVSAvoidclimate response capability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The system receives and processes weather forecast data in advance, allowing it to proactively adjust operating parameters before climate conditions change. This enables predictive control that improves adaptability without requiring complex real-time response mechanisms.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback loops that continuously monitor actual climate conditions and compare them with forecast data, automatically adjusting HVAC operations to optimize performance. This feedback mechanism enables dynamic adaptation while maintaining manageable system complexity.

Inventive Principle:

Principle #23Feedback

3Device complexity

If the HVAC system lacks air quality monitoring, then the system is simpler, but it cannot adjust operations to maintain indoor air quality

Engineering Contradiction:

Improvesystem componentsVSAvoidindoor air quality

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The system merges air quality monitoring sensors with the existing HVAC control architecture, integrating multiple functions (temperature control, air quality monitoring, and automated response) into a unified system. This reduces overall complexity while enabling comprehensive environmental control.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The HVAC system automatically monitors air quality parameters and adjusts its operations without user intervention. When poor air quality is detected, the system self-corrects by modifying ventilation rates or activating air treatment devices, eliminating the need for manual monitoring while maintaining simplicity.

Inventive Principle:

Principle #25Self-service

4Adaptability or versatility

If complex parameters are made accessible to users, then user control is improved, but the interface becomes more difficult to use

Engineering Contradiction:

Improveparameter controlVSAvoidinterface usability

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The user interface dynamically adapts its complexity based on user interaction. Initially, it presents a simple thermostat interface, but can reveal advanced parameters and controls when users need them, allowing the interface to be simple when possible and comprehensive when necessary.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Different parts of the interface provide different levels of detail and control. The main thermostat interface remains simple for daily use, while context-sensitive help and advanced settings are available on-demand, allowing users to access complex parameters without being overwhelmed by them during normal operation.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS8219249B2Indoor air quality controllers and user interfaces

Publication Date: 2012.07.10 JOHNSON CONTROLS TECHNOLOGY CO

AI summary

Controllers for controlling heating, ventilating, air conditioning, and cooling (HVAC) systems are provided. The controllers include graphical user interfaces for user adjustment of system settings. The controllers also include communication interfaces for receiving climate data. In certain embodiments, the controllers govern operation of the HVAC systems based at least in part on the climate data. Further, the controllers may display information and alerts related to the climate data. The controllers also may govern operation of air treatment devices within the HVAC systems.