Relay Transport Vehicle Scheduling With Updated Arrival Prediction
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Solution Overview
Problem
Existing transport facilities face efficiency issues due to deviations in the predicted time of article readiness for transportation, leading to waiting times for transport vehicles and reduced overall efficiency.
Innovation Solution
A transport facility with a control system that performs a transport vehicle determination process, path determination process, initial prediction process, update prediction process, and receiving movement process to ensure timely arrival of the second transport vehicle at the receiving position, correcting for any deviations in the arrival time of the first transport vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a transport vehicle is deployed to receive a target article at a predicted time, then the target article can be transported immediately when ready, but the predicted time may deviate from the actual time due to congested movement paths or unexpected smooth movement
Solution Approach 1:
The control system implements a feedback mechanism by monitoring the actual movement of the first transport vehicle along the movement path and comparing it with the predicted movement. When a deviation is detected (either delay or early arrival), the system sends a notification to adjust the deployment timing of the second transport vehicle, ensuring optimal synchronization and minimizing waiting time.
Solution Approach 2:
The control system performs preliminary deployment of the second transport vehicle based on the predicted arrival time of the target article. The vehicle is positioned in advance at or near the receiving position, ready to immediately receive the target article once it arrives, thereby reducing waiting time and improving transport efficiency.
2Productivity
If the second transport vehicle waits at the receiving position based on initial prediction time, then immediate transportation is possible when the article arrives, but any deviation in the first transport vehicle's arrival time reduces transport efficiency
Solution Approach 1:
The system continuously monitors the actual position and movement status of the first transport vehicle along the movement path. When the actual movement deviates from the predicted movement (either delayed or accelerated), the control system receives feedback and dynamically adjusts the deployment timing of the second transport vehicle to maintain synchronization with the actual arrival time of the target article.
Solution Approach 2:
The deployment strategy of the second transport vehicle is made dynamic rather than static. Instead of fixing the deployment time based solely on initial prediction, the system adapts the deployment timing in real-time based on the actual movement status of the first transport vehicle, allowing the system to respond to deviations and maintain high transport efficiency.
Data Source
AI summary
A transport facility includes a plurality of transport vehicles and a control system. The control system updates, when a target article is transported from a transport source to a transport destination through a relay using two of the plurality of transport vehicles, an arrival prediction time at which the target article arrives at a receiving position in the relay based on a checkpoint pass time at which the target article passes a checkpoint, and deploys a second transport vehicle to be at the receiving position at the updated prediction time.