Touch-Sensing Companion Robot Behavior Adaptation Through Contact Feedback
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Solution Overview
Problem
Current robot technology has not advanced to the point where it can provide a presence as a pet-like companion, as humans empathize with entities that exhibit free will, and robots lacking this perception are not considered to have free will, limiting their ability to provide solace like pets do.
Innovation Solution
An autonomously acting robot equipped with sensors to detect user contact, a recognizing unit to determine affection expression levels, and an operation control unit to change its behavioral characteristics based on this interaction, allowing it to select and execute human-like or animal-like actions, thereby increasing empathy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a robot is designed with autonomous action selection capability to exhibit free will-like behavior, then empathy and emotional connection from users increases, but device complexity and control system requirements increase
Solution Approach 1:
The robot dynamically adjusts its behavioral characteristics based on detected contact information. The control unit modifies operation patterns in real-time according to the type, location, and intensity of contact detected by sensors, enabling adaptive behavior without requiring complex pre-programmed decision trees for every possible interaction scenario
Solution Approach 2:
The system implements a feedback loop where sensors detect contact from the user, the control unit processes this information to determine affection expression levels, and the robot adjusts its behavioral characteristics accordingly. This closed-loop feedback mechanism enables the robot to exhibit free will-like behavior by continuously adapting to user interactions
2Adaptability or versatility
If a robot uses sensors to detect contact and determine affection levels, then emotional interaction capability improves, but manufacturing complexity and cost increase
Solution Approach 1:
The contact detection system is designed to serve multiple functions: detecting the type of contact, its location on the robot body, its intensity, and inferring affection expression levels. This multi-functional sensor system reduces the need for separate specialized sensors for each detection task, simplifying manufacturing while maintaining emotional interaction capability
Solution Approach 2:
The system determines affection expression levels by analyzing changes in contact parameters such as location, intensity, and duration. Rather than requiring complex sensors, the system uses variations in basic contact detection parameters to infer emotional states, maintaining manufacturing simplicity while achieving emotional interaction capability
Data Source
AI summary
A planar touch sensor (an electrostatic capacitance sensor) for detecting a contact by a user on a body surface is installed on a robot. Pleasantness and unpleasantness are determined in accordance with a place of contact and a strength of contact on the touch sensor. Behavioral characteristics of the robot change in accordance with a determination result. Familiarity with respect to the user who touches changes in accordance with the pleasantness or unpleasantness. The robot has a curved form and has a soft body.