Autonomous Work Route Selection From Vehicle Position and Orientation
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Solution Overview
Problem
Existing travel route determination systems for autonomous work vehicles require a pre-set start route, leading to inefficiencies when the vehicle is far away and lack flexibility in selecting the start route, limiting the ability to initiate autonomous travel from any work route.
Innovation Solution
A system that includes a route generating unit, control unit, information obtaining unit, and determination unit to dynamically set a candidate determination region based on the vehicle's position and orientation, allowing selection of a suitable start route from among multiple work routes, while excluding unsuitable routes and considering angles for route suitability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a start route is preliminarily set among multiple work routes, then the autonomous travel system can operate with a defined starting point, but the system lacks flexibility in selecting the start route and cannot respond to demands to start at work routes other than the pre-set start route
Solution Approach 1:
The patent makes the start route determination dynamic by allowing the determination unit to select the start route based on real-time conditions such as vehicle position, orientation, and candidate determination regions, rather than using a fixed pre-set start route. This enables the system to adapt flexibly to different operational scenarios while maintaining manageable complexity through structured determination criteria.
Solution Approach 2:
The patent changes the parameters used for route selection from a fixed pre-set route to dynamic parameters including vehicle position information, orientation information, and candidate determination region settings. This allows the system to flexibly determine the start route based on current operational conditions while maintaining systematic control through defined determination rules.
2Productivity
If the current position of the work vehicle is far away from the start route, then the vehicle must be moved to the start end of the start route, but this results in long time until autonomous travel is started
Solution Approach 1:
The patent applies preliminary action by determining the start route based on the vehicle's current position and orientation before autonomous travel begins. The determination unit identifies suitable work routes as candidate routes and selects the start route from these candidates, ensuring the vehicle can begin autonomous travel promptly without requiring lengthy repositioning maneuvers.
Solution Approach 2:
The system enables self-service by allowing the determination unit to automatically select the start route based on the vehicle's current state and the predefined candidate determination regions. This automatic selection process eliminates the need for manual intervention or complex repositioning, thereby reducing the time to initiate autonomous travel while maintaining operational simplicity.
3Adaptability or versatility
If autonomous travel can only be started at the pre-set start route, then the system maintains simple route determination logic, but the system cannot respond to demands to start autonomous travel at other work routes
Solution Approach 1:
The patent implements universality by enabling the autonomous travel system to start at any work route that is designated as a candidate route, rather than being limited to a single pre-set start route. The determination unit evaluates multiple work routes based on candidate determination regions and selects the most appropriate start route, providing versatile start options while maintaining efficient determination through structured evaluation criteria.
Solution Approach 2:
The patent applies dynamics by making the start route selection adaptive to real-time vehicle position and orientation. The determination unit dynamically identifies which work routes qualify as candidate routes based on current vehicle state and predefined regions, allowing the system to respond flexibly to start demands at various work routes while minimizing time loss through automated determination.
Data Source
AI summary
A travel route determination system including: a route generating unit generating planned travel routes including work routes along which a work vehicle performs autonomous travel; a control unit capable of causing the work vehicle to perform autonomous travel along the planned travel routes; an information obtaining unit obtaining position information and orientation information on the work vehicle; and a determination unit determining an autonomous travel candidate route at which the work vehicle can start autonomous travel, before the work vehicle starts autonomous travel. The determination unit sets a candidate determination region based on the position information and orientation information on the work vehicle, and the determination unit determines, among the work routes, a work route in the candidate determination region as the autonomous travel candidate route.