Automatic Driving Control Device for Line-Free Parking
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Solution Overview
Problem
Existing automated parking systems require a parking line for navigation, making it impossible to perform automated parking in spaces without a defined line, such as those found in houses.
Innovation Solution
An automated driving control system that uses cameras to capture images of the environment, extracts candidate feature points, and generates automated driving information to guide the vehicle to a target position without relying on a parking line by selecting fixed structures as reference points through stereo photogrammetry and bundle adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automated parking uses parking lines for navigation, then navigation accuracy is improved, but adaptability to different environments deteriorates
Solution Approach 1:
The patent extracts the navigation function from dependency on parking lines by introducing feature point extraction from arbitrary fixed structures. The system captures images, extracts candidate feature points, determines fixed structures among them, and uses these structures as navigation references, thereby removing the constraint of requiring parking lines while maintaining navigation capability.
Solution Approach 2:
The patent makes the navigation system universal by enabling it to work with any fixed structure (walls, columns, trees, buildings) rather than requiring specific parking line markings. The feature point extraction and fixed structure determination algorithms can process various types of stationary objects, making the system adaptable to different environments including residential areas without standardized parking facilities.
2Difficulty of detecting and measuring
If automated parking relies on parking lines, then ease of detection is improved, but device complexity increases
Solution Approach 1:
The system performs self-service by automatically capturing images, extracting candidate feature points, determining fixed structures, and calculating vehicle position without human intervention. The automated processing pipeline includes image capture, feature point extraction, fixed structure determination through coordinate comparison, and position calculation, all executed autonomously to detect navigation references.
Solution Approach 2:
The patent replaces the mechanical/visual detection of parking lines with an automated image processing system. Instead of relying on optical recognition of specific line patterns, the system uses computer vision to extract feature points from images, determine fixed structures through coordinate relationship analysis, and calculate position, substituting manual or simple visual detection with automated computational methods.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables automated parking in spaces without a parking line by accurately determining the vehicle's position and route using fixed structures as markers, improving navigation accuracy and flexibility.
Implementation Method 1
an image capturing device that captures an image Pi1 around a target position P0 as a registration time image
Implementation Method 2
selecting as a feature point F2, a candidate feature point F1 whose position in a registration time image Pi1 satisfies a relation between a coordinate of the vehicle 1 and a coordinate of the candidate feature point F1
Data Source
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AI summary
Automatic parking is made possible even in a parking space with no parking frame lines. The automatic driving control device has: an automatic driving information registration unit (12) for generating automatic driving information; and an automatic driving control unit for automatically driving a vehicle on the basis of automatic driving information and an image at the time of automatic driving. The automatic driving information registration unit (12) has: a candidate characteristic point extraction unit (22) for extracting a candidate characteristic point on the basis of an image at the time of registration; and an automatic driving information generation unit (23) for selecting as characteristic points, among the candidate characteristic points, the candidate characteristic points determined to be stationary structures disposed at the periphery of the vehicle target location on the basis of a plurality of im - ages at the time of registration, and generating automatic driving information, which is information about the position of the characteristic points in relation to prescribed origin point coordinates. The automatic driving control unit has: a vehicle position calculation unit for calculating vehicle position information, which is information about the position of the vehicle, on the basis of the automatic driving information and the image at the time of automatic driving; and an automatic driving execution control unit that automatically drives on the basis of the vehicle position information.