Magnetically Coupled Mirror for Drop-Resistant Robot Training Capture

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing sensorized handheld end effectors for collecting robot training data are susceptible to damage when dropped by a user.

Innovation Solution

A handheld end effector apparatus with a magnetically coupled mirror system that allows for detachable mirrors to direct light towards a camera, preventing damage during accidental drops.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the mirror is permanently attached to the end effector, then the light reflection function is stable, but the apparatus is susceptible to damage when dropped

Engineering Contradiction:

Improvedamage resistanceVSAvoidmirror detachment

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The mirror is separated from the end effector body, allowing independent movement and detachment. The mirror can be detached when not in use to prevent damage during drops, while still maintaining functional integration during operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mirror transitions from a static attached state to a dynamic detachable state. Magnetic coupling enables the mirror to be securely attached during operation but easily detached when needed, providing adaptability to different operational conditions.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the mirror is detachable, then damage from drops is prevented, but the light reflection function may be compromised

Engineering Contradiction:

Improvedamage resistanceVSAvoidoptical alignment

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

Magnetic coupling replaces mechanical fastening systems to attach the mirror. This substitution allows for easy attachment and detachment while maintaining precise optical alignment through the magnetic field's consistent positioning capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic coupling strength can be adjusted to control the attachment force. This parameter change allows the mirror to be securely attached during operation for optimal optical performance, while enabling easy detachment when needed to prevent damage.

Inventive Principle:

Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The apparatus effectively collects robot training data without damaging the mirrors or end effector, enabling reliable image data capture for robot task training.

Implementation Method 1

The mirror in the first position may be magnetically coupled to the end effector and oriented such that light reflected by the mirror is directed toward the camera

Methodology Applied

Scientific EffectLight reflection: Reflection

Implementation Method 2

The mirror in the first position may be magnetically coupled to the end effector

Methodology Applied

Scientific EffectMagnetic coupling: Magnetism

Data Source

PatentUS20260077488A1Apparatus for collecting robot training data

Publication Date: 2026.03.19 TOYOTA RESEARCH INSTITUTE INC

AI summary

An apparatus for collecting robot training data includes an end effector. The apparatus includes a camera supported by the end effector. The apparatus includes a mirror movable from a first position that is attached to the end effector to a second position that is detached from the end effector. The mirror in the first position is magnetically coupled to the end effector and oriented such that light reflected by the mirror is directed toward the camera.