Thermostat Parameter Learning for Adaptive Climate Preference Control

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Solution Overview

Problem

Traditional HVAC systems rely on a 'set and forget' approach to temperature control, which fails to account for various factors influencing indoor comfort, such as humidity and air movement, leading to inefficient climate management.

Innovation Solution

A method and system for relative temperature preference learning that monitors indoor and outdoor conditions to calculate a comfort zone, learns occupant preferences, and adjusts thermostat settings automatically based on historical data and real-time environmental factors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional HVAC systems use a 'set and forget' approach to temperature control, then the system operation is simple, but the indoor comfort is poor because the system fails to account for humidity and air movement factors

Engineering Contradiction:
Improvesystem operation simplicityVSAvoidindoor comfort quality
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The HVAC system automatically monitors multiple environmental parameters (temperature, humidity, air movement) and self-adjusts the climate control settings without requiring user intervention. The system learns occupant preferences over time and autonomously optimizes comfort conditions, eliminating the need for manual temperature setting while maintaining high comfort quality.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors indoor environmental conditions including temperature, humidity, and air movement, compares these against comfort thresholds and learned preferences, and automatically adjusts HVAC operation accordingly. This closed-loop feedback mechanism ensures optimal comfort while adapting to changing conditions.

Inventive Principle:
Principle #23Feedback

2Reliability

If the system continuously monitors and adjusts temperature settings to learn occupant preferences, then the indoor comfort is improved, but the system complexity increases

Engineering Contradiction:
Improveindoor comfort qualityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The thermostat device performs multiple functions: it monitors temperature, humidity, and air movement; stores historical environmental data; learns occupant preferences through pattern recognition; and controls HVAC system operation. By consolidating these diverse functions into a single multi-functional device, the patent avoids the need for separate complex systems for each function.

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

Solution Approach 2:

The system automatically learns occupant temperature preferences by analyzing historical data and behavioral patterns without requiring manual programming or complex user configuration. This self-learning capability reduces the need for complex setup procedures and user interface complexity while maintaining high comfort quality.

Inventive Principle:
Principle #25Self-service

3Loss of energy

If the system dynamically adjusts temperature settings based on learned preferences and environmental factors, then energy consumption is reduced, but the loss of information about user intent increases

Engineering Contradiction:
Improveenergy consumptionVSAvoiduser intent information
Core Design Contradiction:
Loss of energyVSLoss of information

Solution Approach 1:

The system continuously monitors and records user interactions with the thermostat and manual temperature adjustments, using this feedback to refine its learned preferences. By maintaining an ongoing dialogue with occupants through monitoring and adaptation, the system preserves understanding of user intent while dynamically optimizing energy consumption based on learned patterns.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system pre-loads and pre-cools or pre-heats spaces based on learned occupancy patterns and historical preferences before occupants arrive or before temperature changes are typically requested. This anticipatory action reduces energy consumption by avoiding last-minute intensive heating or cooling while maintaining comfort, based on previously gathered information about user behavior.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10386795B2Methods and apparatus for parameter based learning and adjusting temperature preferences
Publication Date: 2019.08.20 VIVINT LLC
  • US10386795B2 patent drawing
  • US10386795B2 patent drawing
  • US10386795B2 patent drawing

AI summary

A method for relative temperature preference learning is described. In one embodiment, the method includes identifying one or more current settings of a thermostat located at a premises, identifying one or more current indoor and outdoor conditions, calculating a current indoor differential between the current indoor temperature and the current target temperature, calculating a current outdoor differential between the current outdoor temperature and the current target temperature, and learning temperature preferences based on an analysis of the one or more current indoor conditions and the one or more current outdoor conditions. The one or more current settings of the thermostat include at least one of a current target temperature, current runtime settings, and current airflow settings. The one or more current indoor and outdoor conditions include at least one of a current temperature, current humidity, current indoor airflow, current atmospheric pressure, current level of precipitation, and current cloud cover.