Vehicle Dimension Retrieval via Registration Plate Database
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Solution Overview
Problem
Current electronic driving aids in vehicles face challenges in accurately analyzing distances and discerning the presence of surrounding vehicles due to unreliable sensor inputs, particularly in measuring vehicle dimensions.
Innovation Solution
An information retrieval arrangement for a host vehicle that retrieves reliable dimensions of surrounding vehicles from a database based on registration plate information, using a surrounding vehicle monitoring unit and calculating unit to determine perception angles and distances, and distinguish valid registration plates, thereby enhancing the accuracy of distance calculations and driving aid systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensor systems are used to detect surrounding vehicles, then the driving environment can be monitored, but the measurement precision of vehicle dimensions and distances deteriorates due to unreliable sensor inputs
Solution Approach 1:
The patent introduces an intermediary database that stores pre-measured vehicle dimension data. Instead of relying directly on imprecise sensor measurements, the system uses registration plate information as a key to retrieve accurate dimension data from the database, thereby mediating between the sensor input and the final measurement result.
Solution Approach 2:
The patent creates a copy of vehicle dimension information from a centralized database and uses it in place of direct sensor measurements. The registration plate serves as a unique identifier to copy the correct vehicle's dimensional data, replacing the unreliable direct measurement with an accurate copied value.
2Measurement precision
If registration plate reading arrangement is added to retrieve vehicle dimensions from database, then measurement precision of surrounding vehicles improves, but device complexity increases
Solution Approach 1:
The registration plate reading arrangement serves multiple functions: it identifies the vehicle, retrieves dimension data from the database, and provides measurement information to the driving aid system. This multi-functionality reduces the need for separate dedicated components for each function.
Solution Approach 2:
The vehicle dimension data is pre-measured and stored in the database before needed. When the system needs this information, it simply retrieves the pre-prepared data using the registration plate as a key, avoiding the complexity of real-time measurement and calculation.
3Measurement precision
If reliable vehicle dimensions are retrieved from database, then distance calculation accuracy improves, but loss of time occurs in retrieving information from database
Solution Approach 1:
Vehicle dimension data is pre-calculated and stored in the database during vehicle manufacturing or registration. When the system needs this information during operation, it performs a quick database lookup using the registration plate, avoiding time-consuming real-time measurements and calculations.
Solution Approach 2:
The system copies pre-existing vehicle dimension data from the database rather than measuring it in real-time. This copying operation is much faster than performing complete vehicle measurements, thus reducing the time loss while maintaining high accuracy.
Data Source
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AI summary
An information retrieval arrangement (1) for a host vehicle (3) is provided. The arrangement (1) is configured to retrieve information of at least one surrounding vehicle (5, 6), surrounding the host vehicle (3). The arrangement (1) comprises a registration plate reading arrangement (7) configured to read registration plate information of the at least one surrounding vehicle (5, 6) and an information retrieving unit (9) configured to retrieve from a database (11.1, 11.2) at least one dimension (w, l5) of the at least one surrounding vehicle (5, 6), based on the read registration plate information. The present invention also relates to a method (100) of retrieving information of at least one surrounding vehicle (5, 6) using an information retrieval arrangement (1), a lane change assist arrangement (17) comprising an information retrieval arrangement (1), and a vehicle (3) comprising an information retrieval arrangement (1)