Robot Head Emotion Display Synchronization

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Solution Overview

Problem

Current robot apparatuses face challenges in expressing emotions effectively due to the need for large, heavy, and expensive motors to achieve substantial head movements, which increase cost, current consumption, and gear noise, while also limiting the ability to visually represent emotional states in a synchronized manner with physical motion.

Innovation Solution

An electronic robot apparatus equipped with a motor, display, and processor that determines motor movement information based on emotional states, synchronizing the movement of a visual image object on the display with the physical motion of the robot head, allowing for enhanced emotional expression and user perception without the need for large motors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a motor with large rotational force is used to move the robot head a substantial amount, then the robot can express emotions more effectively, but the motor becomes heavy and expensive and consumes large current

Engineering Contradiction:
Improverobot head movement rangeVSAvoidmotor weight
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The patent combines the physical movement of the robot head with a visual display showing an image object moving in the same direction and phase. This merging of physical and visual elements creates an amplified emotional expression effect, allowing smaller motors to achieve the same perceived emotional impact as larger motors would alone.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent adds a visual dimension to the physical movement by displaying an image object that moves in synchronization with the robot head. This transforms a one-dimensional physical movement problem into a two-dimensional solution combining physical space and visual display space, enabling smaller motors to achieve greater expressive effect.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If a motor with high gear ratio is used to achieve small number of revolutions, then the motor size can be reduced, but the maximum speed decreases and gear noise increases

Engineering Contradiction:
Improvemotor sizeVSAvoidgear noise
Core Design Contradiction:
Volume of moving objectVSObject-generated harmful factors

Solution Approach 1:

The patent merges the robot head's physical movement with a visual representation on a display, where an image object moves in the same direction and phase. This combination allows the system to achieve effective emotional expression with smaller motor movements, reducing the need for high gear ratios and thereby minimizing gear noise.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If the robot head moves rapidly and at large angle, then user perception of robot emotion increases, but it requires a motor with large torque which is heavy and expensive

Engineering Contradiction:
Improveuser perception accuracyVSAvoidmotor torque
Core Design Contradiction:
Measurement precisionVSPower

Solution Approach 1:

The patent combines physical robot head movement with a visual display showing an image object moving in the same direction and phase. This merging amplifies the emotional expression effect, allowing smaller motor movements to be perceived by users with the same intensity as larger movements would alone, thereby reducing the required motor torque.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces a visual dimension through the display to enhance user perception. By showing an image object that moves in synchronization with the robot head, the system amplifies the perceived emotional expression without requiring proportionally larger physical movements, thus reducing the power requirements.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10632623B2Robot apparatus and method for expressing emotions thereof
Publication Date: 2020.04.28 SAMSUNG ELECTRONICS CO LTD
  • US10632623B2 patent drawing
  • US10632623B2 patent drawing
  • US10632623B2 patent drawing

AI summary

A robot apparatus and a method for expressing emotions thereof, the method including determining motor movement information to drive a motor according to the emotional state to be expressed by the electronic device, determining the display position of the image object on the display according to the movement information of the motor, controlling an operation to drive the at least one motor according to the movement information of the motor, and changing the position of the image object displayed on the display in response to the movement of the electronic device driven by the at least one motor based on the determined display position information.