Map Update Controller Using Surrounding Vehicle Detection
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Solution Overview
Problem
Current map updating methods are inefficient and costly, requiring high-priced mobile mapping systems and inconvenient manual image capture, making frequent map updates impractical.
Innovation Solution
An apparatus and method that utilize a vehicle information detecting device, line analyzing device, and reliability determining device to extract change points in map information based on driving data from general or autonomous vehicles, updating map information without a high-priced mobile mapping system, and reflecting real-time changes in intersection entry lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a mobile mapping system (MMS) is used to update map information, then map updating accuracy and completeness are improved, but system cost and complexity increase significantly
Solution Approach 1:
The patent uses images captured by the vehicle's existing camera to create a digital copy of the map environment, replacing the need for expensive MMS hardware. The image processing unit extracts map information from these captured images, effectively copying the functionality of MMS using cheaper resources.
Solution Approach 2:
The patent makes the vehicle's camera serve multiple functions: it acts as both a driving assistance sensor and a map updating device. By processing images already captured for navigation purposes, the system eliminates the need for dedicated MMS equipment, reducing overall system complexity and cost.
2Device complexity
If manual image capture is used for map updating, then equipment cost is reduced, but updating efficiency and frequency decrease
Solution Approach 1:
The system automatically captures images and processes them for map updating without requiring manual intervention. The image processing unit continuously analyzes images from the camera, automatically detects changes in the map environment, and updates map information, enabling the system to serve itself in the map updating process.
Solution Approach 2:
The patent enables continuous map updating by processing images captured during normal vehicle operation. Instead of periodic manual updates, the system continuously analyzes image data as the vehicle travels, maintaining up-to-date map information through ongoing automatic processing of captured images.
3Loss of information
If images are captured while individuals wander to collect map data, then map information can be gathered, but time consumption and operational convenience deteriorate
Solution Approach 1:
The vehicle automatically performs map information collection during its normal operation without requiring individuals to wander around. The camera captures images and the image processing unit extracts map information autonomously, eliminating the need for manual data collection efforts and associated time losses.
4Device complexity
If existing map information is used without updates, then system simplicity is maintained, but map accuracy and driver convenience worsen due to outdated information
Solution Approach 1:
The system continuously compares newly captured images with existing map information to detect changes. The image processing unit analyzes differences between current visual data and stored map data, providing feedback that triggers automatic map updates when changes are detected, ensuring map accuracy without complex manual update procedures.
Data Source
AI summary
An apparatus for updating map information for a vehicle includes a vehicle information detecting device that detects information of a surrounding vehicle which accompanies a vehicle, when the vehicle travels through an intersection, a line analyzing device that analyzes line information based on information of the surrounding vehicle which accompanies the vehicle, a reliability determining device that determines reliability of the line information, and a controller that extracts a change point on a map based on the reliability and update map information based on the change point.