Autonomous Driving Route Planning for On-Route Device Abnormality Checks
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Solution Overview
Problem
Autonomous driving systems face inefficiencies in determining the necessity and timing of abnormality determinations for in-vehicle devices, leading to increased time and distance to reach destination points due to unnecessary route deviations for calibration.
Innovation Solution
An autonomous driving system that includes a route search unit, a route determination unit, and an abnormality determination unit to determine an optimal route for abnormality determination based on the necessity and number of abnormality points, allowing for on-route determination while driving, with options to prioritize time, number of points, or type of points, and the ability to expand search ranges when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the autonomous vehicle travels along a route passing through an abnormality determination point to make an abnormality determination for an in-vehicle device, then the abnormality determination can be performed, but the time and distance required to reach the destination point increase
Solution Approach 1:
The system performs abnormality determinations at predetermined points along the route before they become critical issues. By proactively checking sensor calibration and device status at designated abnormality determination points, the system prevents undetected abnormalities from compromising safety, while integrating these checks into the normal travel flow to minimize time loss.
Solution Approach 2:
The autonomous vehicle performs self-diagnosis and abnormality determinations during its normal operation without requiring external intervention or stopping services. The vehicle autonomously evaluates sensor data, checks device status, and determines abnormalities while traveling along predetermined routes, making the system self-monitoring and self-diagnosing.
2Reliability
If multiple abnormality determination points are set on the travel route, then the abnormality determination coverage is improved, but the route length and travel time increase
Solution Approach 1:
The system designates specific locations along the travel route as abnormality determination points based on local conditions and requirements. Different segments of the route have different numbers and types of determination points, optimizing coverage where needed while minimizing detours in areas with lower risk or existing monitoring capabilities.
Solution Approach 2:
The predetermined points serve multiple functions: they act as both navigation waypoints for the autonomous vehicle and as abnormality determination locations. By combining route planning with diagnostic opportunities at the same locations, the system achieves comprehensive abnormality coverage without adding separate dedicated testing routes.
3Reliability
If abnormality determination is performed frequently, then system reliability is improved, but the time and computational resources required increase
Solution Approach 1:
The system performs abnormality determinations at periodic intervals based on distance traveled or time elapsed, rather than continuously. By scheduling determinations at predetermined points along the route and using periodic evaluation cycles, the system maintains reliable monitoring while avoiding excessive computational overhead and time consumption associated with continuous analysis.
Data Source
AI summary
An autonomous driving system configured to make an abnormality determination for an in-vehicle device at an abnormality determination point while an autonomous vehicle is driving autonomously includes: a route search unit configured to search for a travel route from a departure point to a destination point; a route determination unit configured to determine a determination route for making the abnormality determination for the in-vehicle device from the searched travel route, based on necessity of making the abnormality determination for the in-vehicle device and the number of the abnormality determination points on the travel route; and an abnormality determination unit configured to make the abnormality determination for the in-vehicle device at the abnormality determination point while the autonomous vehicle is driving along the determination route.