Zone Reservation Control for Multi-Transport Logistics Traffic
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Solution Overview
Problem
In logistics areas, different automatic transport systems often experience conflicts due to shared routes, leading to deadlock situations that require manual intervention, as they lack direct communication and coordination mechanisms.
Innovation Solution
A method and control unit that divide the logistics area into zones, allowing transport systems to reserve and release zones dynamically based on occupancy status, ensuring reliable and flexible operation by prioritizing transport vehicles and preventing double occupancy or blockages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple different transport systems with independent guidance systems operate in a logistics area, then the logistics area can handle diverse transport tasks, but conflicts and deadlock situations occur on shared routes due to lack of communication between systems
Solution Approach 1:
The patent introduces a central control unit as an intermediary that receives occupancy status information from multiple independent transport systems and issues coordination commands. This mediator enables communication between systems that would otherwise be independent, allowing diverse transport tasks to be handled while preventing conflicts through centralized coordination.
Solution Approach 2:
The control unit serves multiple functions: it receives occupancy status from different transport systems, determines overall occupancy status of zones, generates coordination commands, and communicates with various transport systems. This universal component enables diverse transport systems to operate reliably together without requiring system-specific communication protocols.
2Reliability
If a central control unit coordinates all transport systems by receiving occupancy status from each system, then conflicts between systems are prevented, but the complexity of the control system increases
Solution Approach 1:
The logistics area is divided into discrete zones with defined occupancy statuses. Each transport system reports occupancy of individual zones rather than continuous position data, and the control unit processes these segmented zone statuses independently. This segmentation simplifies the coordination logic compared to managing continuous spatial relationships between multiple systems.
Solution Approach 2:
The patent standardizes communication by having all transport systems report occupancy status in a uniform format (zone ID and occupancy state) to the central control unit. This homogeneous data structure simplifies the control unit's processing logic, reducing complexity despite the multi-functional nature of the coordinator.
3Productivity
If transport vehicles autonomously select routes and avoid obstacles, then flexibility and speed of transport are improved, but deadlock situations may occur when vehicles from different systems share common routes
Solution Approach 1:
The control unit determines the occupancy status of zones in advance before transport vehicles arrive. By knowing which zones are already occupied or reserved, the system can plan routes that prevent deadlocks before they occur, rather than reacting to conflicts after they arise. This preliminary information allows autonomous vehicles to maintain speed while avoiding problematic areas.
Data Source
AI summary
A method operates different transport systems in a logistics area, wherein the logistics area is divided into a plurality of zones. The method receives a first reservation request to reserve one or more zones of the logistics area for a first transport system. The method determines an occupation status of the one or more zones. The method reserves the one or more zones for the first transport system depending on the occupation status of the one or more zones.