Vehicle Communication Failure Logging for Stop Avoidance
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Solution Overview
Problem
Existing vehicle control systems face decreased travel efficiency due to frequent communication failures between vehicles and controllers, which are often unrecoverable and lead to unnecessary vehicle stops, particularly in congested environments.
Innovation Solution
A vehicle control system that includes a communication state determiner to identify communication failures, records vehicle state information during and after failures, and uses an analysis program to investigate and analyze the causes of these failures, enabling improved communication quality by understanding and addressing the root causes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the controller transmits a stop command to vehicles when communication failures are detected, then communication reliability is improved by preventing interference, but travel efficiency deteriorates due to frequent unnecessary stops
Solution Approach 1:
The system performs preliminary actions by recording communication failure information, vehicle state information, and position information before making control decisions. This allows the controller to analyze the causes of communication failures and distinguish between temporary interference and permanent failures, enabling more accurate control decisions that avoid unnecessary stops while maintaining safety
Solution Approach 2:
The system implements feedback by continuously monitoring communication states, recording failure information, and using this data to improve future control decisions. The controller analyzes recorded information to understand communication failure patterns and adjusts its response accordingly, reducing unnecessary stops while maintaining reliable communication
2Reliability
If vehicles stop frequently due to communication failures, then communication interference is avoided, but travel efficiency decreases
Solution Approach 1:
The system records communication failure information, vehicle state information, and position information in advance before control decisions are made. This preliminary data collection enables the controller to analyze failure causes and distinguish between temporary and permanent failures, allowing vehicles to maintain motion during temporary failures while still ensuring safety
Solution Approach 2:
The control strategy dynamically adapts based on recorded communication failure patterns and vehicle state information. Rather than applying a fixed stop command, the system adjusts its response based on the analyzed cause of communication failure, allowing flexible control that minimizes unnecessary stops while maintaining safety
Data Source
AI summary
A controller in a vehicle control system includes a communication state determiner that determines a communication state between a facility communicator and a vehicle communicator in each vehicle, and a recorder. When the communication state determiner determines that the communication state between the facility communicator and the vehicle communicator in any vehicle has a communication failure, the controller obtains vehicle state information indicating a state of a target vehicle being the vehicle having the communication failure at at least one data obtaining point in a target period including at least one of a failure-occurrence point or a failure-recovery point of the communication failure, and records the vehicle state information in the recorder.