Air Conditioner Position-Aware Control Using AI and Acoustic Detection

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Solution Overview

Problem

Air conditioners often waste energy by blowing air to unnecessary spaces as they do not consider the position of occupants, leading to inefficient cooling or heating.

Innovation Solution

An air conditioner equipped with a microphone, temperature sensor, and processor using AI technology to detect user voice commands, determine the user's position, and adjust temperature settings based on a learning model trained with ambient and positional data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If air conditioner blows air to the entire room without considering occupant position, then the air conditioner operates simply with basic temperature control, but energy is wasted by blowing air to unnecessary spaces

Engineering Contradiction:
Improveenergy lossVSAvoidsystem complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent replaces the simple mechanical temperature control system with an intelligent system that uses acoustic field (microphone array) to detect user position and AI algorithm to determine optimal air blowing direction. This substitution enables the system to avoid blowing air to empty spaces, reducing energy loss while maintaining operational simplicity for the user.

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

Solution Approach 2:

The system continuously monitors user position through the microphone array and provides feedback to the control algorithm. The AI algorithm processes this feedback in real-time to adjust the air blowing direction dynamically, ensuring air is directed toward the user's location and preventing energy waste in unoccupied areas.

Inventive Principle:
Principle #23Feedback

2Productivity

If air conditioner uses AI technology to detect user position and adjust temperature, then energy efficiency improves by targeting user location, but device complexity increases with additional sensors and processing

Engineering Contradiction:
Improveenergy efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The microphone array serves multiple functions: it detects user position for temperature control, identifies user presence/absence, and can potentially recognize voice commands. This multi-functionality reduces the need for separate sensors, thereby limiting the increase in device complexity while achieving improved energy efficiency through AI-based position-aware control.

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

3Stability of the object's composition

If air conditioner blows air continuously to maintain set temperature, then temperature stability is maintained, but energy consumption increases due to unnecessary air blowing

Engineering Contradiction:
Improvetemperature stabilityVSAvoidenergy consumption
Core Design Contradiction:
Stability of the object's compositionVSUse of energy by moving object

Solution Approach 1:

The system applies local quality by directing air blowing specifically toward the user's location rather than uniformly across the entire room. The AI algorithm determines the optimal direction based on detected user position, ensuring temperature stability is maintained only in the occupied zone, thereby reducing energy consumption in unoccupied areas.

Inventive Principle:
Principle #3Local quality

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

This solution reduces energy loss by targeting the user's location, enhancing user convenience and satisfaction by providing an optimal cooling or heating environment.

Implementation Method 1

obtain first sound data including a user's voice data through the microphone when the user utters a voice

Methodology Applied
Scientific EffectMicrophone transduction:

Implementation Method 2

a temperature sensor configured to sense a current temperature around the air conditioner

Methodology Applied
Scientific EffectTemperature sensing:

Data Source

PatentEP3748247B1Air conditioner and method for controlling air conditioner
Publication Date: 2023.05.31 SAMSUNG ELECTRONICS CO LTD
  • EP3748247B1 patent drawingFigure 1
  • EP3748247B1 patent drawingFigure 2
  • EP3748247B1 patent drawingFigure 3

AI summary

The present disclosure relates to a system that obtains at least one of a recommended temperature and an operation mode to be set on an air conditioner by applying a position of a user and an ambient temperature of the air conditioner to a learning model trained by using an artificial intelligence algorithm, and sets at least one of the obtained recommended temperature and the obtained operation mode on the air conditioner. In this case, the learning model may be, for example, a model generated by using at least one of machine learning, a neural network, or a deep learning algorithm as the artificial intelligence algorithm.