Autonomous Work Route Selection for Flexible Travel Startup
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Solution Overview
Problem
Existing travel route determination systems for autonomous work vehicles are inflexible, requiring the vehicle to move to a pre-set start route, leading to prolonged startup times and limiting the ability to initiate autonomous travel from any work route.
Innovation Solution
A system that uses position and orientation information to dynamically determine a suitable start route within a candidate region, allowing flexible selection of autonomous travel routes and excluding unsuitable routes based on exclusion conditions, ensuring efficient startup and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a start route is preliminarily set among multiple work routes, then autonomous travel can be systematically managed, but the system cannot flexibly respond to demands to start autonomous travel at work routes other than the pre-set start route
Solution Approach 1:
The patent applies dynamics by making the start route determination flexible and adaptive rather than fixed. The determination unit dynamically identifies candidate routes based on real-time conditions such as vehicle position, orientation, and work region map data, allowing the system to adapt to different operational scenarios and start at any suitable work route rather than a pre-set location.
Solution Approach 2:
The system changes parameters by evaluating multiple work routes based on varying conditions including vehicle position, orientation, and route characteristics. The determination unit adjusts which route becomes the start route based on these parameter evaluations, enabling flexible selection among multiple candidate routes rather than using a single fixed start route.
2Productivity
If the work vehicle is moved to the start end of a pre-set start route, then autonomous travel can be initiated along a planned route, but it takes long time until autonomous travel is started when the current position is far from the start route
Solution Approach 1:
The system performs preliminary actions by pre-calculating and identifying multiple candidate start routes in advance based on the work region map and vehicle characteristics. When autonomous travel needs to start, the determination unit can quickly select from these pre-identified candidates, avoiding the time loss of searching for or navigating to a single pre-set start route location.
Solution Approach 2:
The patent applies dynamics by enabling the start route to be dynamically selected based on current vehicle position and conditions rather than being fixed. This allows the system to choose the most appropriate nearby route as the start route, minimizing the time and distance the vehicle needs to travel before initiating autonomous work.
3Ease of operation
If autonomous travel is restricted to a pre-set start route, then route management is simplified, but the system lacks flexibility to respond to demands to start autonomous travel at any work route
Solution Approach 1:
The patent applies segmentation by dividing the work region into multiple work routes and identifying multiple candidate start routes among them. This segmentation allows the system to select from discrete route options based on current conditions, providing operational flexibility while maintaining structured route management through the determination unit's evaluation process.
Data Source
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AI summary
To flexibly determine a start route to start autonomous travel, a travel route determination system includes: a route generating unit generating planned travel routes K1, K2 including work routes K1 along which a work vehicle 1 performs autonomous travel; a control unit capable of causing the work vehicle 1 to perform autonomous travel along the planned travel routes K1, K2; an information obtaining unit obtaining position information and orientation information on the work vehicle 1; and a determination unit determining an autonomous travel candidate route K3 at which the work vehicle 1 can start autonomous travel, before the work vehicle 1 starts autonomous travel, wherein the determination unit sets a candidate determination region P based on the position information and orientation information on the work vehicle 1, and the determination unit determines, among the work routes K1, a work route K1 in the candidate determination region P as the autonomous travel candidate route K3.