Autonomous Vehicle Queue Management for Safe Boarding
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Solution Overview
Problem
In autonomous driving vehicle systems, when multiple vehicles are queued at a boarding area and a user attempts to board a second vehicle while the leading vehicle departs, the second vehicle may inadvertently move forward, causing safety issues during boarding.
Innovation Solution
A management system that includes a control device and communication terminal, where vehicles send notifications about their availability for boarding, and the system prevents second vehicles from moving forward if a user is about to board by simulating arrival at the boarding point through deemed arrival notifications, ensuring safe boarding procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple vehicles are queued at a boarding area to improve service capacity, then productivity increases, but safety deteriorates because second vehicles may inadvertently move forward when users are boarding
Solution Approach 1:
The system performs preliminary actions by having the leading vehicle send a departure notification before actually departing, and by having the second vehicle check for boarding requests before moving forward. This allows the system to prevent safety issues before they occur by anticipating potential conflicts between vehicle departure and user boarding actions.
Solution Approach 2:
The system implements feedback mechanisms where vehicles send notifications about their status (departure intent, boarding availability) to the management server, which then coordinates actions based on received boarding requests. The second vehicle receives feedback about whether it should proceed forward based on the presence of boarding requests, creating a closed-loop control system that maintains safety while enabling multiple vehicles to queue.
2Reliability
If the second vehicle waits for the leading vehicle to depart before moving forward, then safety is improved, but loss of time increases due to waiting
Solution Approach 1:
The second vehicle performs preliminary checks for boarding requests before the leading vehicle actually departs. By checking in advance whether there are pending boarding requests, the system allows the second vehicle to move forward immediately when safe, rather than waiting passively for the leading vehicle to leave. This reduces unnecessary waiting time while maintaining safety through proactive verification.
Solution Approach 2:
The waiting behavior of the second vehicle is dynamic rather than static. Instead of always waiting for a fixed duration or until departure is confirmed, the second vehicle continuously monitors for boarding requests and adjusts its timing accordingly. When no boarding requests are present, the second vehicle can proceed earlier; when requests are present, it waits appropriately. This dynamic adjustment optimizes the balance between safety and time efficiency.
Data Source
AI summary
A vehicle operation management system includes a communication terminal and a plurality of vehicles that communicates with the terminal, and is capable of autonomously driving. The vehicles include a first vehicle and a second vehicle. In a boarding area, when the first vehicle is at a leading portion in a file, the second vehicle is at a next position in the file, and one boarding request is made from the terminal, the first notification unit in the first vehicle notifies that the first vehicle is available for boarding, and the second notification unit in the second vehicle does not notify that the second vehicle is available for boarding. When the first vehicle is at the leading portion and the second vehicle is located at the nest position, and at least two boarding requests are made, the first and second notification units notify that the first and second vehicles, respectively, are available for boarding.