Crusher Trajectory Analysis for Dismantling Grasping Actions
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Solution Overview
Problem
Conventional methods for analyzing dismantling operations by crushers in end-of-life vehicle dismantling machines are inefficient, requiring significant time and labor, especially for unskilled operators, as they rely on manual analysis of operation moving images.
Innovation Solution
An operation analysis device that analyzes dismantling operations by processing trajectory data from crushers, identifying key points and clusters to automate the analysis of grasping and sorting actions, thereby improving efficiency and reducing analysis time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual analysis of operation moving images is used, then analysis detail can be obtained, but analysis time becomes excessively long
Solution Approach 1:
The patent replaces the manual mechanical analysis process with an automated computer-based system. The analysis device automatically extracts trajectory data, identifies operation points, and performs cluster analysis without requiring manual viewing and interpretation of moving images, thus dramatically reducing analysis time while maintaining or improving analysis precision through systematic data processing.
Solution Approach 2:
The patent creates a digital copy of the physical operation process through trajectory data. Instead of analyzing the actual moving images directly, the system processes extracted trajectory information that represents the crusher's movement, enabling automated analysis while preserving the essential operational characteristics for detailed examination.
2Productivity
If automated analysis is implemented, then analysis time is reduced, but complexity of the analysis system increases
Solution Approach 1:
The patent divides the complex analysis task into distinct modular components: trajectory data extraction, operation point identification, cluster analysis, and wasteful operation detection. Each module performs a specific function independently, making the overall system more manageable and easier to implement despite the increased automation capability.
Solution Approach 2:
The analysis device is designed to handle multiple types of operational data and perform various analysis functions through a unified system. The same trajectory data can be processed to identify different operation characteristics, detect multiple types of wasteful operations, and provide comprehensive evaluation, reducing the need for separate specialized systems.
Data Source
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AI summary
Based on operation trajectory data in which position information and open/close information of a crusher during an operation period of a dismantling operation are recorded in time series, a control unit (3) of an operation analysis device (1) identifies all open points indicating positions at which the crusher is opened during the operation period and all close points indicating positions at which the crusher is closed during the operation period, calculates, as a shortest distance, a distance between each open point of the all open points and a close point nearest to the each open point, and identifies, as a sorting destination open point, an open point at which the shortest distance exceeds a first threshold value, identifies, based on the position information, data until the crusher grasping the dismantling part moves to the sorting destination and returns to the dismantling target again from among the operation trajectory data as movement data of the crusher having moved in the dismantling operation, and identifies data in which the movement data has been removed from the operation trajectory data as grasping operation data indicating an action until the crusher grasps the dismantling part in the dismantling operation.