Autonomous Work Vehicle Obstacle Classification on Connecting Roads
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Solution Overview
Problem
Conventional autonomous travel systems for work vehicles unnecessarily reduce traveling efficiency by uniformly executing avoidance processes when detecting obstacles, even if there is no risk of collision, leading to unsmooth movement between fields.
Innovation Solution
An autonomous travel method and system that detects objects while a work vehicle travels between areas and performs avoidance travel only when the object is registered as an avoidance target, allowing normal travel when it is registered as a non-avoidance target, thereby optimizing route efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uniform avoidance travel process is executed when obstacle is detected, then collision avoidance is ensured, but traveling efficiency deteriorates due to unnecessary deceleration and stopping on connecting roads
Solution Approach 1:
The patent applies local quality by differentiating the avoidance travel process based on the location where the obstacle is detected. When an obstacle is detected on a connecting road (route other than field routes), the system determines whether to execute avoidance travel based on the specific location context. This allows the system to maintain high traveling efficiency on connecting roads by avoiding unnecessary deceleration for non-hazardous obstacles, while ensuring collision avoidance when traveling within fields where obstacles pose actual risks.
2Reliability
If avoidance travel is executed for all detected objects, then safety is improved, but movement smoothness deteriorates due to frequent deceleration and stopping
Solution Approach 1:
The patent applies dynamics by making the avoidance travel execution dynamic rather than uniform. The system dynamically adjusts whether to execute avoidance travel based on real-time conditions, specifically the location type (connecting road vs. field route) and obstacle characteristics. This dynamic approach allows the vehicle to maintain smooth movement on connecting roads by selectively avoiding unnecessary deceleration, while still ensuring safety when obstacles are detected in field areas where they pose actual collision risks.
Data Source
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AI summary
[Problem] To provide an autonomous travel method, an autonomous travel system, and an autonomous travel program capable of improving a traveling efficiency of a work vehicle which autonomously travels between multiple areas. [Solution] The detection process unit 172 detects obstacles while the work vehicle 10 is traveling on the road R0 connecting the fields F1 and F2. The travel processor 111 causes the work vehicle 10 to perform avoidance travel when the obstacles are registered as the avoidance travel target that is a subject to be avoided by the work vehicle 10's avoidance travel, while it causes the work vehicle 10 not to perform the avoidance travel when the obstacles are registered as the non-avoidance travel target that is a subject not to be avoided by the work vehicle 10's avoidance travel.