Autonomous Driving Control Using Route Risk and Link Quality
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Solution Overview
Problem
Traditional mobile entity control devices for autonomous driving primarily focus on communication quality, leading to excessive deceleration and potential obstacles in smooth travel, compromising safety and service quality.
Innovation Solution
A mobile entity control device that incorporates a communication circuit, communication quality measurement, risk level determination, and control circuit to generate driving control information based on communication quality and risk levels, transmitting it to the mobile entity, thereby improving safety and service efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device controls autonomous driving based only on communication quality, then communication safety is improved, but unnecessary deceleration and obstacles to smooth travel occur
Solution Approach 1:
The patent applies local quality by determining risk levels for specific locations along the driving route rather than uniformly applying communication quality thresholds. The determination circuit identifies high-risk locations (intersections, curves, pedestrian zones) and applies different control strategies: using communication quality for low-risk areas and prioritizing safety with reduced speed for high-risk areas. This localized approach prevents unnecessary deceleration in safe areas while ensuring safety at critical locations.
2Reliability
If the device reduces vehicle speed to ensure safety in poor communication conditions, then safety is improved, but service quality and travel efficiency deteriorate
Solution Approach 1:
The patent implements dynamics by making the speed limit adaptive rather than static. The control circuit dynamically adjusts the speed limit based on real-time communication quality and pre-determined risk levels of upcoming locations. When poor communication is detected, the system checks the risk level of the next location: if high-risk, speed is reduced for safety; if low-risk, normal speed is maintained. This dynamic adjustment ensures safety when needed while preserving service quality and travel efficiency when communication issues occur in safe areas.
Data Source
AI summary
A mobile entity control device includes a communicator for communicating with a mobile entity capable of autonomous driving, a communication quality measurer that measures communication quality of communication with the mobile entity via the communicator, a determiner that determines a risk level of specific locations in a predetermined driving route along which the mobile entity travels, and a controller that generates driving control information for controlling travel of the mobile entity based on the communication quality and the risk level, and transmits the driving control information to the mobile entity via the communicator.