Handling System Adaptive Grasping via Physical Property Detection

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Solution Overview

Problem

Existing handling systems face challenges in adaptability and stability when dealing with objects of varying physical properties, such as flexibility and deformability, as they often rely on fixed recognition and grasping methods that fail to account for the unique characteristics of each object, leading to inefficiencies in grasping and transport operations.

Innovation Solution

A handling system that includes a controller capable of acquiring and processing information about the physical properties of objects, generating a holding plan that identifies optimal grasping regions and adjusts the grasping method accordingly, using a combination of pinching and adsorption techniques based on the object's properties, and executing the plan to ensure stable holding and transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed recognition and grasping method is used, then the system structure is simple, but the adaptability to objects with varying physical properties deteriorates

Engineering Contradiction:
Improveadaptability to objects with varying physical propertiesVSAvoidsystem structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system dynamically adjusts the grasping method based on the detected physical properties of the object. The controller selects between pinching and adsorption techniques by evaluating flexibility and deformability characteristics, making the system adaptive rather than fixed. This resolves the contradiction by introducing dynamic decision-making that maintains simplicity while improving adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the grasping parameters (method selection between pinching and adsorption) based on the physical properties of the object. By detecting flexibility and deformability and adjusting the grasping approach accordingly, the system achieves high adaptability without requiring complex mechanical structures for each scenario.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If a fixed grasping method is used, then the device complexity is low, but the grasping stability for diverse objects deteriorates

Engineering Contradiction:
Improvegrasping stabilityVSAvoidcontroller processing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary detection of physical properties (flexibility and deformability) before executing the grasping action. This preliminary assessment allows the controller to pre-select the appropriate grasping method, ensuring stability from the start of the operation. The complexity is confined to the detection and decision phase, while the execution remains straightforward.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If generic handling procedures are used, then the operation process is simple, but the success rate of grasping motions deteriorates

Engineering Contradiction:
Improvesuccess rate of grasping motionsVSAvoidoperation process complexity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system uses feedback from the detection unit about physical properties (flexibility and deformability) to adjust the grasping method. This feedback loop ensures that the grasping motion is tailored to each object's characteristics, significantly improving the success rate. The operation remains simple from the user perspective while the system autonomously optimizes based on detected properties.

Inventive Principle:
Principle #23Feedback

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 system improves adaptability and stability in handling diverse objects by tailoring the grasping and transport processes to the specific physical properties of each object, enhancing the success rate of grasping motions and maintaining high-speed, stable operations even with flexible objects.

Implementation Method 1

a pinching hand 122 configured to pinch the object O

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

an adsorption hand 142 configured to hold the object O according to adsorption

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentUS20240391110A1Handling system, handling method, storage medium, information processing device, and data structure
Publication Date: 2024.11.28 KK TOSHIBA
  • US20240391110A1 patent drawing
  • US20240391110A1 patent drawing
  • US20240391110A1 patent drawing

AI summary

According to an embodiment, a handling system includes a holder and controller. The holder holds an object. The controller controls the holder. The controller acquires information about physical properties of the object. The controller generates a holding plan for holding the object by the holder on the basis of the physical properties. The holding plan includes information of a holding region of the object in which the object is held by the holder. The controller causes the holder to hold the object on the basis of the holding plan.