Remote Vehicle Instruction Control Under Communication Delay
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Solution Overview
Problem
Existing vehicle remote instruction systems face challenges in appropriately controlling autonomous driving vehicles when communication delays occur between the remote instruction apparatus and the vehicle, leading to inappropriate remote instructions due to changed surroundings.
Innovation Solution
A vehicle remote instruction system that includes a delay determination unit to assess communication delays by comparing instruction transmission and reception times, and a rejection unit to reject inappropriate remote instructions, ensuring safe and appropriate vehicle control even with delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the autonomous driving vehicle waits for remote instructions during communication delay, then the vehicle can receive updated instructions, but the surrounding situation changes making the instructions inappropriate
Solution Approach 1:
The vehicle performs preliminary actions (switching to safety control, autonomous emergency evacuation, or maintaining current state) before receiving remote instructions during communication delay. This ensures the vehicle takes appropriate action based on the situation at the time of delay occurrence, rather than waiting for potentially outdated instructions.
2Reliability
If the vehicle switches to safety control during communication delay, then the vehicle maintains safe operation, but the travel control becomes less flexible
Solution Approach 1:
The control system dynamically switches between different operational modes (safety control, autonomous emergency evacuation, maintaining current state) based on the communication delay situation. This allows the system to adapt its behavior appropriately while maintaining safety as the primary concern during delays.
3Speed
If the vehicle executes remote instructions immediately upon receipt, then the response is timely, but the instructions may be inappropriate due to communication delay
Solution Approach 1:
The system provides feedback by notifying the remote instruction apparatus when communication delay is detected and when instructions are rejected. This allows the remote operator to understand the situation and provide updated instructions once communication is restored, creating a closed-loop system that balances speed and reliability.
Data Source
AI summary
A vehicle remote instruction system 100 transmits a remote instruction request from an autonomous driving vehicle 2 to a remote instruction apparatus 1, and controls travel of the autonomous driving vehicle 2 based on a remote instruction transmitted from the remote instruction apparatus 1 in response to the remote instruction request. The vehicle remote instruction system 100 includes a delay determination unit 39 configured to determine whether or not a communication delay occurs between the remote instruction apparatus 1 and the autonomous driving vehicle 2, and a rejection unit 40 configured to reject the remote instruction transmitted in response to the remote instruction request if it is determined by the delay determination unit 39 that the communication delay occurs.