Elevator Mobile Body Coordination to Prevent Passing Conflicts
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Solution Overview
Problem
Existing elevator control systems for autonomous mobile bodies fail to facilitate smooth operations due to the inability to prevent collisions or overlaps between multiple mobile bodies entering and exiting the elevator, leading to inefficient operation plans.
Innovation Solution
A mobile body control system that acquires information on entry and destination floors, determines potential overlaps, and adjusts operation plans to prevent collisions by altering the path or timing of mobile bodies entering the elevator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the elevator control device prevents all mobile bodies from entering simultaneously, then collision prevention is improved, but operation plan facilitation deteriorates
Solution Approach 1:
The determination unit performs preliminary analysis of mobile body trajectories using entry source and destination information to predict potential collisions before they occur. This allows the control device to proactively adjust operation plans rather than reactively preventing all simultaneous entries, thereby maintaining productivity while ensuring safety.
Solution Approach 2:
The control device continuously monitors mobile body positions and adjusts operation plans based on real-time feedback. By comparing actual positions with predicted trajectories, the system can dynamically coordinate mobile body movements to prevent collisions while maximizing elevator utilization efficiency.
2Reliability
If mobile bodies are controlled to avoid simultaneous entry, then safety is improved, but operational efficiency deteriorates
Solution Approach 1:
The system calculates potential collision trajectories in advance using entry source and destination information, allowing mobile bodies to plan their movements beforehand. This preliminary action enables smooth coordination without unnecessary waiting or stopping, reducing time loss while maintaining safety.
Solution Approach 2:
The control device dynamically adjusts operation plans based on real-time mobile body positions and trajectories. Rather than using fixed restrictive rules, the system adaptively coordinates movements to prevent collisions while minimizing disruptions to operational efficiency.
Data Source
AI summary
The mobile body control system includes: an acquisition unit that acquires information on the entry source and information on the destination of the first and second mobile bodies that enter the elevator car; and a determination unit that determines whether or not the first and second mobile bodies pass each other based on the information on the entry source and the information on the destination of the mobile body. When the determination unit determines that the passing of the first and second mobile bodies occurs, at least one of the first and second mobile bodies changes the operation plan.