Autonomous Load Transport Routing for Vibration-Tolerant Travel
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Solution Overview
Problem
Conventional transportation systems for unmanned transfer vehicles may cause damage to loads due to varying allowable vibrations based on load conditions, leading to potential degradation during transportation.
Innovation Solution
A transportation system that includes an autonomous traveling transporter equipped with map information storage, collected information acquisition, map information update, and a travel plan unit. This system uses map information including travel road additional data and travel tolerance to identify optimal travel plans that minimize load damage by adjusting routes and traveling states based on the transporter's performance and load characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the traveling speed is reduced to suppress vibration amplitude on bad road surfaces, then the vibration amplitude decreases, but the transportation efficiency and productivity deteriorate
Solution Approach 1:
The system performs preliminary actions by pre-collecting road surface information through autonomous traveling and pre-calculating appropriate traveling speeds for different road conditions. The map information storage means stores pre-acquired road surface data, and the travel plan unit uses this stored information to determine optimal speeds before encountering problematic sections, allowing speed adjustment in advance rather than reactive slowing down.
Solution Approach 2:
The system implements feedback mechanisms where the transporter collects road surface information during autonomous traveling, feeds this information back to update map data, and uses the updated map information to adjust future traveling plans. The travel plan unit continuously refines speed recommendations based on accumulated feedback from actual road conditions and load responses.
2Ease of operation
If a fixed traveling speed is used regardless of load conditions, then the operation is simple, but loads with different allowable vibrations may be damaged
Solution Approach 1:
The system transitions from static fixed-speed operation to dynamic speed adjustment based on real-time conditions. The travel plan unit dynamically determines appropriate traveling speeds by considering both road surface conditions from map information and the specific load's vibration tolerance, allowing the operating parameters to adapt continuously to changing conditions while maintaining automated operation.
Solution Approach 2:
The system changes the operating parameter (traveling speed) based on varying conditions. Instead of using a constant speed, the travel plan unit adjusts the speed parameter according to road surface information and load characteristics, enabling the same transportation system to safely handle diverse loads with different vibration tolerances without complicating the overall operation.
3Reliability
If the traveling speed is reduced to prevent load damage, then the load safety improves, but the transportation time increases
Solution Approach 1:
The system applies local quality by adjusting traveling speed specifically for problematic road sections rather than reducing speed uniformly throughout the entire route. The travel plan unit identifies specific road segments with poor surface conditions from map information and calculates appropriate speed reductions only for those sections, maintaining normal speeds on good road surfaces to minimize overall transportation time while still protecting the load.
Data Source
AI summary
A transportation system includes map information storage means configured to store map information including travel road additional information about travel roads of an autonomous traveling transporter for transporting a load and inclination of the travel roads, collected information acquisition means configured to acquire collected information collected through autonomous traveling of the transporter on the travel roads, map information update means configured to update the travel road additional information of the map information corresponding to the travel roads autonomously traveled by the transporter based on the collected information, and a travel plan unit configured to identify a travel plan of the transporter autonomously traveling to transport the load, based on the map information including the travel road additional information and travel tolerance PB indicating tolerance of the load with respect to traveling.