Robot Behavior Control System Using Internal State Management
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Solution Overview
Problem
Conventional intelligent robots lack the ability to autonomously discriminate and respond to both external environments and internal states, leading to simplistic behavior selection and limited realistic communication capabilities.
Innovation Solution
A behavior control system that includes external environment recognition, internal state management, and behavior evaluation sections, organized in a tree structure, allowing for concurrent evaluation and execution of behaviors based on both external stimuli and internal states, enabling the robot to select and execute suitable behaviors dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional behavior selection mechanisms are used that respond only to external environment or internal state separately, then the system structure remains simple, but the robot cannot achieve realistic communication and sophisticated behavior
Solution Approach 1:
The behavior control system is segmented into distinct functional modules: external environment recognition section, internal state management section, and behavior evaluation section. Each module processes specific aspects of robot operation independently, allowing complex behavior selection to be achieved through coordinated simple modules rather than a monolithic complex system.
Solution Approach 2:
The patent introduces a hierarchical tree structure with multiple layers for behavior evaluation. The behavior evaluation section evaluates behaviors at different levels (first layer, second layer, etc.), adding a dimensional aspect to behavior selection. This hierarchical evaluation enables sophisticated behavior control by considering multiple factors at different decision-making levels rather than a single flat evaluation process.
2Adaptability or versatility
If the robot autonomously selects behavior based on both external environment and internal state, then realistic communication is achieved, but the behavior control system becomes complex
Solution Approach 1:
The behavior evaluation section serves multiple functions: it evaluates external environment recognition results, assesses internal state conditions, and determines appropriate behavior selection. This multi-functional module consolidates what could be separate complex systems into a single universal evaluation mechanism that handles both external and internal factors integratedly.
Solution Approach 2:
The system implements feedback loops where the behavior evaluation section continuously monitors both external environment changes and internal state variations, adjusting behavior selection dynamically. The internal state management section provides feedback about robot conditions to the behavior evaluation, creating a closed-loop control system that achieves realistic communication through adaptive response to combined external and internal inputs.
Data Source
AI summary
A behavior control system for a robot apparatus that operates autonomously. The behavior control system includes a plurality of behavior description sections for describing motions of the robot and an external environment recognition section. The system also includes an internal state management section for managing an internal state of the robot in response to the recognized external environment and/or a result of execution of a behavior, and for managing emotions. A behavior evaluation section evaluates execution of behaviors in response to the external environment and/or the internal state.