Parking Orientation Detection Using Pre-Recorded Database Data
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Solution Overview
Problem
Existing parking assistance systems fail to reliably determine the orientation of parking spaces, leading to incorrect vehicle orientations and potential collisions due to ambiguity in sensor data, which cannot distinguish between continuous and divided parking spaces or differentiate between parallel and perpendicular parking orientations.
Innovation Solution
The system incorporates orientation-dependent information linked to sensor data, using a database with location-specific parking space orientation information to calculate a correct parking trajectory, accounting for the orientation of parking spaces relative to the road, and integrating GPS and navigation data to provide accurate parking path guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If distance sensors are used to detect parking space boundaries, then the location and depth of parking spaces can be recorded, but the orientation of parking spaces (parallel or perpendicular) cannot be determined
Solution Approach 1:
The patent introduces an intermediary database that stores pre-recorded orientation information for parking spaces at various locations. This database acts as a mediator between the sensor system and the parking assistance system, providing the missing orientation data without requiring complex sensor modifications. The database stores orientation information that was previously recorded by the parking assistance system during earlier parking maneuvers at the same location.
Solution Approach 2:
The system performs preliminary action by pre-recording and storing parking space orientation information in a database during earlier parking maneuvers. This pre-acquired information is then retrieved and used in subsequent parking operations, eliminating the need to determine orientation from scratch each time and resolving the information loss problem.
2Device complexity
If sensor data alone is used to determine parking space characteristics, then the system is simple, but incorrect parking trajectories may result due to ambiguous sensor information
Solution Approach 1:
The patent merges two information sources: real-time sensor data and pre-stored orientation information from the database. By combining these sources, the system achieves reliable parking trajectory determination without significantly increasing device complexity. The merging occurs in the evaluation unit that integrates sensor measurements with database information to generate accurate parking paths.
Solution Approach 2:
The system uses feedback by storing previously determined parking space characteristics in the database and retrieving them for future use. This feedback mechanism allows the system to learn from past parking maneuvers and improve the accuracy of future parking trajectories by comparing real-time sensor data with historical orientation information.
3Device complexity
If the system only detects parking space boundaries without orientation information, then the sensor system remains simple, but the system cannot distinguish between continuous and divided parking spaces
Solution Approach 1:
The database serves as an intermediary that stores continuity information for parking spaces. Instead of modifying the simple sensor system to detect continuity, the patent uses the database to provide this information based on pre-recorded data from previous parking operations at the same location.
Solution Approach 2:
The system performs preliminary detection and storage of parking space continuity characteristics during earlier operations. This pre-acquired information is stored in the database and retrieved when needed, allowing the simple sensor system to benefit from advanced information without increased complexity.
Data Source
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AI summary
The method involves determining of depth information (d) along a parking section (20) while the vehicle is directed to the parking space by a distance sensor device (42) at the vehicle. The parking section has the parking space (10). The length of the parking space is calculated by processing of the depth information along the parking section. Independent claims are also included for the following: (1) a memory device; and (2) a navigation device.