Home Appliance Voice Control Using Generative AI Command Mapping

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Solution Overview

Problem

Natural language commands uttered by users vary, making it difficult for home appliances to accurately interpret and translate these commands into actionable controls, particularly due to differences in command input habits and usage environments.

Innovation Solution

A method and device that utilize a generative AI module to determine the category of an input command, generate a control command, and control a home appliance using a generated result, especially when the command does not correspond to predefined controls, by employing a database to find similar sample texts and guide the AI module for accurate interpretation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If natural language command recognition is used, then user flexibility and ease of operation are improved, but command interpretation accuracy deteriorates due to variations in user speech patterns and environments

Engineering Contradiction:
Improveuser command input flexibilityVSAvoidcommand interpretation accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system performs preliminary actions by collecting multiple sample texts that represent various ways users might express the same command intent. These samples are stored in advance and used to train the generative AI model, enabling it to recognize and interpret diverse natural language inputs accurately without requiring users to learn specific command formats.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A generative AI module serves as an intermediary between the user's natural language input and the home appliance's control system. This AI intermediary translates varied human speech patterns into standardized control commands, bridging the gap between flexible user input and precise system interpretation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If predefined commands are used, then command interpretation accuracy is improved, but adaptability to new usage scenarios and environments deteriorates

Engineering Contradiction:
Improvecommand recognition accuracyVSAvoidflexibility to new commands
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The system transitions from static predefined commands to a dynamic generative AI-based recognition system. The AI model can continuously adapt to new command patterns, user speech variations, and usage environments by learning from sample texts, enabling both high accuracy and flexibility without requiring extensive reprogramming.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The generative AI module provides universal command recognition capability that handles multiple types of inputs (voice, text, different accents, varying phrasings) through a single system. This multi-functional approach replaces numerous predefined command sets with one adaptable recognition engine that works across diverse scenarios.

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

3Measurement precision

If generative AI module is introduced, then command interpretation flexibility and accuracy are improved, but device complexity increases

Engineering Contradiction:
Improvespeech recognition accuracyVSAvoidsystem structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system employs a self-service approach where the generative AI model is trained offline using collected sample texts and stored in a database. During operation, the AI model automatically processes incoming commands without requiring manual configuration or complex real-time training, reducing operational complexity while maintaining high recognition accuracy.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4708284A1Method of controlling home appliance based on command and device for implementing the same
Publication Date: 2026.03.11 LG ELECTRONICS INC
  • EP4708284A1 patent drawingFigure 1~3
  • EP4708284A1 patent drawingFigure 4~5
  • EP4708284A1 patent drawingFigure 6~8

AI summary

The present invention relates to a method of controlling a home appliance based on a command and a device for implementing the same, and a method of controlling a home appliance based on a command includes a first operation of determining, by a electronic device, whether an input command corresponds to direct control, a second operation of inputting, by the electronic device, the command, guide including category of the command, sample texts having similarity greater than or equal to a predetermined reference value with the input command extracted from a database to a generative artificial intelligence (AI) module when the input command does not correspond to the direct control in the first operation, and a third operation of generating, by the electronic device, a control command using the generated result by the generative AI module and the generated result includes category of the input command.