Article Transport Route Control at Branching and Merging Points
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Solution Overview
Problem
Existing article transport facilities face inefficiencies due to the inability to allow multiple transport vehicles to pass through control zones simultaneously, particularly at branching and merging points, limiting overall transport efficiency.
Innovation Solution
The system introduces non-intersecting first and second routes with separate passage permissions for first and second passing points, allowing transport vehicles to request and revoke passage permissions based on travel distance, enabling simultaneous travel along both routes without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a control zone is used to manage transport vehicles at branching and merging points, then passage control is achieved, but multiple transport vehicles cannot exist in the zone simultaneously, reducing transport efficiency
Solution Approach 1:
The control zone is divided into multiple independent route sections (first route and second route), each with its own passage permission management. This segmentation allows multiple transport vehicles to travel simultaneously on different routes while maintaining controlled access at branching and merging points, thus improving transport efficiency while preserving passage control reliability.
2Device complexity
If passage permission is granted for the entire control zone, then simple control logic is used, but transport vehicles may interfere with each other at branching and merging points
Solution Approach 1:
Different passage permission management strategies are applied to different route sections within the control zone. Each route (first route and second route) has its own passing points and permission granting mechanism, allowing tailored control for each local section. This ensures safe passage control at branching and merging points while maintaining relatively simple control logic for each individual route.
Data Source
AI summary
In the case where a transport vehicle has received both a first passage permission and a second passage permission and is to pass through a second passing point, when the travel distance of the transport vehicle from a first stopping point reaches a first set distance, the transport vehicle issues, to a zone control device, a first occupation revocation request for revoking permission to occupy a first passing point, and when the travel distance of the transport vehicle from the first stopping point reaches a second set distance, the transport vehicle issues, to the zone control device, a second occupation revocation request for revoking permission to occupy the second passing point.