Route Search Device for Autonomous Driving Sensor Accuracy Prediction
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Solution Overview
Problem
In autonomous driving systems, when sensors necessary for autonomous driving become unsatisfactory, drivers are not given enough time to switch to manual driving due to late notifications of unsuitable locations for autonomous operation.
Innovation Solution
A route search device that acquires and analyzes environmental information to predict locations where sensor accuracy falls below a standard, informing the user ahead of time and guiding them to a safe location to prevent sudden switching to manual driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If notification is given when sensor accuracy becomes unsatisfactory, then the driver receives timely warning, but the driver does not have enough time to switch to manual driving
Solution Approach 1:
The system performs preliminary action by notifying the driver in advance before the sensor accuracy actually becomes unsatisfactory. The notification is triggered when environmental information predicts that sensor accuracy will fall below the standard, giving the driver sufficient time to prepare for and switch to manual driving before the autonomous driving becomes unsafe.
2Reliability
If the system searches for locations where sensor accuracy may be insufficient, then it can identify unsafe areas for autonomous driving, but it requires additional environment acquisition and analysis processes
Solution Approach 1:
The system applies preliminary action by acquiring environmental information about the moving route in advance and predicting locations where sensor accuracy may be insufficient before the vehicle reaches those locations. This allows the system to identify unsafe areas proactively and notify the driver before entering those regions, improving reliability without requiring complex real-time analysis during critical driving moments.
Data Source
AI summary
An enhanced map information processing unit 14 of a driving assistance device 1 acquires from a determination unit 13 information on surroundings of a vehicle which is needed to perform autonomous driving, and acquires from a server device 2 environment information on surroundings of a route on which autonomous driving is performed. On the basis of the acquired environment information, the enhanced map information processing unit 14 extracts, as an autonomous driving unsuitable location Pn, a location at which the accuracy of the acquirement of the sensor unit 12 is predicted not to satisfy a standard for acquiring the information on the surroundings of the vehicle needed to perform autonomous driving. An informing unit 18 alerts the extracted autonomous driving unsuitable location Pn to a user.