Work Vehicle Bypass Routing for Obstacles in Headland Areas

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Solution Overview

Problem

Conventional automatic traveling systems face efficiency reductions due to obstacles in the headland area, where the work vehicle cannot perform automatic traveling around detected obstacles, leading to unworked areas and interrupted work.

Innovation Solution

An automatic traveling system equipped with a detection processing unit, a bypass setting processing unit, and a travel processing unit that detects obstacles and sets bypass routes, allowing the work vehicle to travel along these routes when obstacles are detected, thereby avoiding them.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the work vehicle stops automatic traveling when an obstacle is detected, then safety is ensured, but work efficiency is reduced

Engineering Contradiction:
ImprovesafetyVSAvoidwork efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system dynamically adjusts the travel route based on real-time obstacle detection. When an obstacle is detected, the system generates a bypass route that deviates from the original path, allowing the work vehicle to continue working without stopping while maintaining safety by avoiding the obstacle.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary obstacle detection before the work vehicle reaches the obstacle position. By detecting obstacles in advance and pre-calculating bypass routes, the system enables smooth route transitions without stopping the work vehicle, thereby maintaining work efficiency while ensuring safety.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the travel route is generated only in the work area, then safety is improved, but work efficiency is reduced due to manual operation in headland area

Engineering Contradiction:
ImprovesafetyVSAvoidwork efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The automatic traveling system is extended to function in both the work area and the headland area. By generating travel routes in both areas, the system enables the work vehicle to perform automatic traveling throughout the entire field, eliminating the need for manual operation in the headland area and improving work efficiency while maintaining safety standards.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If the work vehicle cannot perform automatic traveling around obstacles, then safety is maintained, but unworked areas are generated and work efficiency is reduced

Engineering Contradiction:
ImprovesafetyVSAvoidwork efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system dynamically generates bypass routes that allow the work vehicle to navigate around obstacles while continuing to work. The bypass route is calculated to maintain appropriate working distance from the obstacle, ensuring safety while preventing unworked areas and maintaining work efficiency.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20240008385A1Automatic traveling system, automatic traveling method, and automatic traveling program
Publication Date: 2024.01.11 YANMAR HLDG CO LTD
  • US20240008385A1 patent drawing
  • US20240008385A1 patent drawing
  • US20240008385A1 patent drawing

AI summary

A detection processing unit detects an obstacle in the traveling direction of a work vehicle. A bypass setting processing unit sets a bypass starting position which is a starting position of a bypass route (Rse) for the work vehicle to travel while bypassing the obstacle detected by the detection processing unit, and a bypass end position which is an end position of the bypass route. When the detection processing unit detects the obstacle, a travel processing unit causes the work vehicle to travel on the bypass route.