Autonomous Work Route Selection From Vehicle Position and Orientation
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Solution Overview
Problem
Existing travel route determination systems for autonomous vehicle travel require a pre-set start route, leading to inefficiencies when the vehicle's current position is far from the start route, and lack flexibility in selecting the start route.
Innovation Solution
A travel route determination system that includes a route generating unit, a control unit, an information obtaining unit, and a determination unit. The determination unit sets a candidate determination region based on the vehicle's position and orientation, allowing it to dynamically select an autonomous travel candidate route from among multiple work routes.
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 organized, but the system lacks flexibility in selecting the start route and cannot respond to demands to start at other routes
Solution Approach 1:
The patent applies dynamics by making the start route selection flexible and changeable based on real-time conditions. The determination unit dynamically selects the start route from multiple candidate routes based on the work vehicle's current position, orientation, and other factors, rather than using a fixed predetermined route. This allows the system to adapt to different operational demands and vehicle states.
Solution Approach 2:
The patent changes the parameter of route selection from a fixed value to a variable determined by multiple factors including vehicle position, orientation, and route characteristics. The determination unit evaluates multiple routes and selects the most appropriate start route based on these changing parameters, enabling flexible adaptation to different scenarios.
2Loss of time
If the work vehicle is moved to a preliminarily set start route when the current position is far away, then autonomous travel can start at the designated route, but it takes long time until autonomous travel is started
Solution Approach 1:
The patent applies preliminary action by pre-calculating and setting multiple candidate routes in advance, including their characteristics and suitability for starting autonomous travel. The determination unit can quickly select from these pre-prepared options based on current vehicle state, avoiding the need for real-time route planning and reducing the time to start autonomous travel.
Solution Approach 2:
The determination unit acts as an intermediary between the work vehicle's current state and the route selection. It evaluates multiple candidate routes based on vehicle position, orientation, and other factors, then selects the most appropriate start route. This intermediary process enables quick and convenient route selection without requiring the vehicle to move to a predetermined location.
3Adaptability or versatility
If autonomous travel can only start at the preliminarily set start route, then route management is simplified, but the system cannot respond to demands to start autonomous travel at other work routes
Solution Approach 1:
The patent applies universality by making the route determination system capable of handling multiple types of route selection demands. The determination unit can select start routes based on various criteria including vehicle position, orientation, and operational requirements. This multi-functional capability allows the system to respond to different start route demands while maintaining a unified determination framework.
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.