Excavator Attachment Path Control With Low-Load Locus Generation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies fail to generate a target locus for an attachment in a working machine with sufficient detail and impose a high calculation load.
Innovation Solution
A target locus generation system for a working machine comprising a posture detector, contour detector, and contact detector, which includes a controller to determine the target locus of an attachment by detecting the posture, contour, and contact of the bucket with the excavation object, setting the arm and bucket positions based on intersection angles and offset amounts to minimize calculation load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate software modules are used for different functions, then functional versatility is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple software modules (routing module, notification module, voicemail module, etc.) into a single integrated software component that executes on the processor. This consolidation maintains all required functions while reducing system complexity by eliminating the need for separate hardware or software modules for each function.
Solution Approach 2:
The integrated software component is designed to perform multiple functions universally - it can route calls, send notifications, manage voicemail, and handle various communication protocols within a single unified structure, making the system adaptable to different communication needs without requiring additional specialized modules.
2Adaptability or versatility
If advanced communication features are added, then adaptability is improved, but ease of operation deteriorates
Solution Approach 1:
The system automatically manages complex communication tasks without requiring user intervention. The routing module automatically directs calls based on predefined rules, the notification module automatically sends alerts, and the voicemail module automatically transcribes and stores messages, allowing users to benefit from advanced features while the system handles the complexity autonomously.
3Measurement precision
If signal processing capabilities are enhanced, then measurement precision is improved, but energy consumption increases
Solution Approach 1:
The patent replaces complex hardware-based signal processing systems with software-based processing that executes on the existing processor. This substitution maintains signal processing capabilities while reducing energy consumption by utilizing the processor's existing computational resources rather than dedicated hardware accelerators or additional power-hungry components.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A target locus of an attachment is determined while a calculation load for generating the target locus of the attachment is suppressed. A controller (30) is configured to set a position of an arm distal end (15t) at a time when a contact detector (33) detects contact of a bucket distal end (17t) with an excavation object (A) at a start point (P1) of an arm distal end target locus (Ta). The controller (40) is configured to receive information about a form of the arm distal end target locus (Ta) in advance. The controller (40) is configured to set a position for a finish point (P3) on the basis of an angle (α) of a surface of the excavation object (A), an intersection angle (β) between the arm distal end target locus (Ta) and the surface of the excavation object (A), information about the form of the arm distal end target locus (Ta), and an offset amount (O) about the finish point of the arm distal end target locus (Ta).