Robot Emotional Expression Control Using Recognition Difficulty Cues
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Solution Overview
Problem
Existing robot devices struggle to perform actions that evoke feelings of personal attachment in users, as they find it difficult to express emotions, character, and thinking effectively, leading to a lack of emotional connection with users.
Innovation Solution
A control device comprising a recognizing unit, an action decision managing unit, a behavior managing unit, and a drive control unit that determines whether to exhibit emotional expressions based on the difficulty level of recognition and action decision, and controls the execution of actions to evoke emotional responses in users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the robot device performs random movements to enhance entertainment aspect, then user interest is improved, but the ability to express specific emotions and character is worsened
Solution Approach 1:
The patent implements dynamic behavior selection by switching between different action generation modes (random actions vs. emotional expression actions) based on real-time evaluation of recognition difficulty and action decision difficulty. The system dynamically adjusts its behavior strategy rather than using a fixed approach, allowing it to adapt to varying situational requirements.
Solution Approach 2:
The system changes operational parameters by evaluating difficulty levels of recognition and action decision, then selecting different action types accordingly. When difficulty levels indicate favorable conditions, the system transitions from random movements to specific emotional expressions, effectively changing the behavioral parameters based on situational assessment.
2Reliability
If the robot device exhibits emotional expressions to evoke personal attachment, then user attachment is improved, but power consumption increases
Solution Approach 1:
The patent applies partial action by selectively exhibiting emotional expressions only in situations where the evaluation of recognition difficulty and action decision difficulty indicates favorable conditions. Rather than continuously displaying emotional expressions, the system performs them partially and selectively, thereby reducing overall power consumption while maintaining effective emotional connection when needed.
Solution Approach 2:
The system implements periodic evaluation of difficulty levels to determine when to exhibit emotional expressions. This periodic assessment mechanism allows the robot to rhythmically switch between energy-saving mode and emotional expression mode, optimizing power usage while maintaining user attachment through strategically timed emotional displays.
3Reliability
If the robot device performs complex actions to express character and thinking, then emotional expression capability is improved, but action decision difficulty increases
Solution Approach 1:
The patent implements a feedback mechanism where the system evaluates the difficulty of recognition and action decision before selecting emotional expression actions. This feedback loop allows the robot to assess situational complexity and adjust its behavior accordingly, choosing simpler actions when difficulty is high and more expressive actions when conditions are favorable, thereby managing the trade-off between emotional expression capability and decision complexity.
Data Source
AI summary
A control device includes a recognizing unit that recognizes the external environment based on sensing information; an action decision managing unit that, based on the recognized external environment, decides on the actions to be taken; a behavior managing unit that, based on at least either the difficulty level of recognition for the recognizing unit or the difficulty level of action decision for the action decision managing unit, determines about whether or not to exhibit emotional expressions; and a drive control unit that, based on the determination performed by the behavior control unit, controls the execution of the actions corresponding to emotional expressions.