Intelligent Thermostat Learning for Low-Complexity Energy Control

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Solution Overview

Problem

Current HVAC thermostatic control systems, especially programmable ones, are often underutilized due to complexity, leading to missed energy-saving opportunities as users are intimidated by numerous controls and seldom adjust settings to optimize energy usage, resulting in inefficient energy consumption.

Innovation Solution

An intelligent thermostat with high-power and low-power consuming circuitry that includes power-stealing technology, microprocessors, and microcontrollers, which learns user preferences and adapts to environmental changes by gathering information through non-obtrusive queries, providing a user-friendly interface for energy-saving functionalities and promoting energy-efficient behavior.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If programmable thermostats with multiple controls are provided, then energy-saving functionality is improved, but device complexity increases making users intimidated and unable to use the features

Engineering Contradiction:
Improveenergy consumptionVSAvoidnumber of controls
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The thermostat automatically learns user temperature preferences and occupancy patterns through sensors and user interactions, then autonomously creates and adjusts energy-saving schedules without requiring manual programming. This eliminates the need for complex user-facing controls while maintaining advanced energy-saving functionality through self-learning algorithms that adapt to household routines

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically adjusts temperature setpoints based on learned patterns, time of day, and occupancy detection rather than requiring users to manually set fixed parameters. The thermostat modifies operational parameters automatically, transforming the static control interface into an adaptive system that responds to changing conditions without additional user input

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If simple non-programmable thermostats are used, then ease of operation is improved, but energy-saving opportunities are lost due to manual control requirements

Engineering Contradiction:
Improveuser interface simplicityVSAvoidenergy consumption
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The thermostat performs the energy-optimization function that would otherwise require vigilant manual adjustment by keeping users simple. It autonomously monitors occupancy, learns preferences, and automatically adjusts temperatures to capture energy-saving opportunities without requiring users to understand or program complex settings

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors user manual adjustments and occupancy patterns, using this feedback to refine its learned model and improve future automatic control decisions. This closed-loop learning enables the thermostat to adapt to actual usage patterns while maintaining a simple interface

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If high-power microprocessor is continuously active for learning calculations and wireless communications, then adaptability and intelligence are improved, but power consumption increases beyond available power-stealing capacity

Engineering Contradiction:
Improvelearning capabilityVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The microprocessor operates in periodic cycles, performing intensive learning calculations and wireless communications only when necessary, then entering low-power sleep mode. The system schedules computational tasks to execute during periods when power availability is sufficient, using occupancy detection and environmental conditions to trigger processing cycles rather than continuous operation

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts its operational state based on available power from power-stealing circuitry and rechargeable battery charge levels. When power availability increases, the microprocessor performs more intensive learning tasks; when power is limited, it reduces computational activity to essential functions only, creating a flexible power-management strategy that adapts to real-time conditions

Inventive Principle:
Principle #15Dynamics

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 intelligent thermostat optimizes energy usage by automatically adjusting settings based on learned user habits and environmental data, reducing energy consumption while maintaining comfort levels, and encourages energy-saving behaviors through user-friendly interfaces and feedback mechanisms.

Implementation Method 1

power-stealing circuitry that harvests power from an HVAC-triggering circuit and a power-storage medium, such as a rechargeable battery

Methodology Applied
Scientific EffectPower stealing: Electrical Accumulator

Data Source

PatentUS9098096B2Continuous intelligent-control-system update using information requests directed to user devices
Publication Date: 2015.08.04 GOOGLE LLC
  • US9098096B2 patent drawing
  • US9098096B2 patent drawing
  • US9098096B2 patent drawing

AI summary

An intelligent control system includes intelligent thermostats and controls an environment, such as a residential living space, commercial building, or another environment. The intelligent control system obtains information related to the controlled environment by collecting sensor data, obtaining data from users during interactive information-exchange sessions, and by directing information queries to users on one or more user devices.