Gripper-Based Grape Measurement Apparatus

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Solution Overview

Problem

Existing measurement techniques require additional actions from workers to specify objects, which can impose operational burdens and reduce efficiency, especially in tasks like berry thinning where precise and rapid measurement of features like the number of grapes is necessary.

Innovation Solution

A measurement apparatus that uses a gripper to detect grasping and movement of objects, allowing for automatic specification and measurement of feature amounts through image analysis and sensor data, without requiring explicit user operations for measurement initiation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a worker manually specifies the object to be measured, then the measurement can be accurately targeted, but the operational burden and time required increase

Engineering Contradiction:
Improveobject specification accuracyVSAvoidoperational burden
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The measurement apparatus automatically identifies and specifies the object to be measured by detecting the gripper's grasping action and movement, eliminating the need for manual object specification by the worker. The system serves itself by autonomously determining measurement targets based on natural workflow actions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary detection of the grasping action and object identification before the actual measurement process. By detecting the gripper's approach and grasp in advance, the apparatus prepares the measurement configuration automatically, avoiding the need for post-grasping manual specification.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If additional actions are required to specify the object, then measurement accuracy can be ensured, but the productivity decreases

Engineering Contradiction:
Improveobject identification accuracyVSAvoidmeasurement efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent combines the object specification function with the measurement function into a single integrated process. The detection of grasping action, object identification, and measurement initiation are merged into one automated workflow, eliminating separate specification steps and improving overall efficiency.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The manual mechanical action of specifying an object by the worker is replaced with an automated detection system using sensors and image processing. The mechanical specification process is substituted with electronic detection and automatic object recognition, thereby eliminating additional operational steps.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If the measurement starts automatically upon grasping, then the operational load is reduced, but the measurement timing precision may be affected

Engineering Contradiction:
Improveoperational simplicityVSAvoidmeasurement timing accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system uses feedback from the gripper's movement and the object's position to dynamically adjust and optimize measurement timing. By continuously monitoring the grasping process and object stabilization, the apparatus determines the optimal moment to initiate measurement, ensuring both operational simplicity and timing precision through real-time feedback control.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3683565B1Image measurement apparatus, image measurement method and computer program
Publication Date: 2023.02.22 SONY SEMICON SOLUTIONS CORP
  • EP3683565B1 patent drawingFigure 1
  • EP3683565B1 patent drawingFigure 2
  • EP3683565B1 patent drawingFigure 3

AI summary

In a measurement apparatus or a measurement method, an information processing apparatus executes: a process of specifying a bunch of grapes to be measured on the basis of detection of grasping of the bunch of grapes by a gripper; and a process of starting to measure the number of pieces of the specified bunch of grapes.