Robot Response Control Using User State Recognition

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Solution Overview

Problem

Existing technologies may not be able to output an appropriate response to the state of a user, particularly in interactions with robots.

Innovation Solution

An action control system that includes a recognition unit to detect user states and an output controller to generate responses based on user emotions and actions, utilizing a text generation model and emotion engine to enhance interaction appropriateness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a robot uses conventional response generation methods, then the system complexity is low, but the ability to provide appropriate and human-like responses to user states is insufficient

Engineering Contradiction:
Improveability to provide appropriate responseVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments the response generation process into distinct functional modules: a recognition unit that identifies user states (emotions, actions, situations) and an output controller that selects and generates appropriate responses based on recognized states. This segmentation allows each module to specialize in specific tasks, improving overall adaptability while managing complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system introduces an intermediary processing layer between user input and robot response that analyzes user states and mediates the selection of appropriate responses. This intermediary layer (comprising the recognition unit and output controller) enables the robot to understand and appropriately respond to various user states without requiring complete redesign of the entire system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the robot implements simple detection and response mechanisms, then the ease of operation is high, but the quality of interaction and customer service is insufficient

Engineering Contradiction:
Improveinteraction qualityVSAvoidease of operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The robot performs self-analysis of user states through its recognition unit, automatically identifying emotions, actions, and situations without external intervention. The output controller then autonomously selects and generates appropriate responses based on this self-analyzed information, enabling the system to provide high-quality interactions while maintaining ease of operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements a feedback mechanism where the recognition unit continuously monitors user states and the output controller adjusts responses based on this feedback. This closed-loop approach allows the robot to adapt to user needs in real-time, improving interaction quality while the automated nature of the feedback processing maintains ease of operation.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4703852A1Action control system
Publication Date: 2026.03.04 SOFTBANK GROUP CORP
  • EP4703852A1 patent drawingFigure 1
  • EP4703852A1 patent drawingFigure 2
  • EP4703852A1 patent drawingFigure 3~4

AI summary

To output an appropriate response corresponding to a state of a user. An action control system includes: a recognition unit that recognizes a state of a user based on detection information detected from the user; and an output controller that causes an electronic device including a text generation model to output a response to the user in accordance with the state of the user recognized by the recognition unit.