Autonomous Vehicle Stopping Area Selection Using Pedestrian Signals
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Solution Overview
Problem
Autonomous vehicles lack the ability to effectively determine optimal stopping areas and points that are advantageous to users, as they rely on limited sensors and lack integrated systems for evaluating real-time traffic and pedestrian signals to minimize stopping time and maximize user convenience.
Innovation Solution
An autonomous vehicle system equipped with a display unit and controller that searches for available stopping areas based on acquired vehicle driving information, including map, traffic, and location data, to determine a recommended area by calculating the sum of stopping and walking times, and considers pedestrian signal transition times to optimize user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the autonomous vehicle uses basic sensor equipment for stopping, then the device complexity is reduced, but the ability to determine optimal stopping areas and minimize stopping time deteriorates
Solution Approach 1:
The patent combines multiple sensors (cameras, LIDAR, radar, ultrasonic sensors) and integrates them with a controller to form a comprehensive stopping area determination system. This merging of components enables the vehicle to evaluate multiple factors simultaneously and determine optimal stopping areas that minimize stopping time while ensuring safety.
Solution Approach 2:
The controller acts as an intermediary that processes data from various sensors and applies algorithms to determine optimal stopping areas. It mediates between raw sensor data and the final stopping decision, evaluating factors such as pedestrian signals, traffic conditions, and spatial constraints to minimize stopping time.
2Device complexity
If the autonomous vehicle determines stopping areas without considering pedestrian signals and traffic information, then the device complexity is reduced, but the user convenience and safety deteriorate
Solution Approach 1:
The system performs preliminary evaluation of potential stopping areas by considering pedestrian signals, traffic information, and spatial constraints before the vehicle actually stops. This advance assessment ensures that the selected stopping area is optimal for user convenience and safety, allowing the user to reach the destination quickly and safely.
Solution Approach 2:
The controller continuously receives feedback from sensors about pedestrian signals, traffic conditions, and the vehicle's position relative to potential stopping areas. This feedback loop enables the system to adjust its stopping area selection in real-time, ensuring optimal user convenience and safety based on current conditions.
3Measurement precision
If the autonomous vehicle searches for available stopping areas using comprehensive vehicle driving information, then the stopping area determination accuracy is improved, but the information processing time increases
Solution Approach 1:
The controller segments the stopping area determination process into distinct evaluation stages: identifying potential stopping areas, evaluating pedestrian signal conditions, assessing traffic information, and selecting the optimal area. This segmentation allows the system to process comprehensive information systematically and efficiently, improving accuracy while managing processing time.
Solution Approach 2:
The system evaluates multiple factors beyond the minimum required for stopping (such as pedestrian signals, traffic information, and user convenience factors) to determine the optimal stopping area. This excessive evaluation ensures high determination accuracy by considering all relevant factors, even though it requires more processing time than basic stopping requirements would demand.
Data Source
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AI summary
Disclosed is an autonomous vehicle including a display unit and a controller which is configured to: when the vehicle enters a set distance from a preset destination or receives a stop request while travelling, search for at least one available stopping area based on acquired vehicle driving information; and display information about a found available stopping area on the display unit or transmit such information to a preset terminal.