Automated Valet Parking Position Accuracy Check Before Route Execution
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Solution Overview
Problem
Automated valet parking systems face challenges in maintaining positional estimation accuracy due to factors like aging, accidents, and dirt, which can cause vehicles to deviate from their travel routes during automatic driving.
Innovation Solution
A control device equipped with a travel route determining unit, a travel route transmission unit, a position acquiring unit, and a positional accuracy calculation unit calculates the positional estimation accuracy of vehicles before automated driving, ensuring accurate navigation and preventing deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automated driving is performed without calculating positional estimation accuracy, then the automated valet parking system operates with simpler procedures, but the vehicle may deviate from the travel route due to aging, accidents, or dirt affecting sensor accuracy
Solution Approach 1:
The system performs preliminary calculation of positional estimation accuracy before executing automated driving. The control device calculates whether the vehicle position estimated by the vehicle's own sensors falls within a predetermined accuracy range, and only permits automated driving to proceed if the accuracy requirement is satisfied. This preliminary check prevents potential deviations caused by sensor degradation from aging, accidents, or dirt accumulation.
2Measurement precision
If the vehicle's own position estimation is used without verification, then the system operates with fewer components, but the positional accuracy deteriorates over time due to sensor degradation
Solution Approach 1:
The control device receives the vehicle's own position estimation from the vehicle and compares it against predetermined accuracy criteria. This feedback mechanism allows the system to monitor the quality of position estimation in real-time and make decisions based on whether the estimation meets the required accuracy threshold, thereby maintaining measurement precision despite sensor degradation over time.
Data Source
AI summary
A control device for an automated valet parking lot includes: a travel route determining unit configured to determine a travel route to a parking space; a travel route transmission unit configured to transmit the travel route to a vehicle; a position acquiring unit configured to acquire, from the vehicle, a position of the vehicle that is estimated by the vehicle; and a positional accuracy calculation unit configured to calculate a positional estimation accuracy, which is an accuracy of the position of the vehicle acquired by the position acquiring unit, prior to performing automated driving of the vehicle in accordance with the travel route.