Opposite-Lane Map Generation Using Oncoming Vehicle Data
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Solution Overview
Problem
Existing map generation apparatuses for vehicles require the subject vehicle to physically travel on each lane to generate a map, making it inefficient and difficult to create maps for opposite lanes without extensive man-hours.
Innovation Solution
A map generation apparatus that recognizes another vehicle traveling on an opposite lane, acquires information about the external situation in a route matching section through inter-vehicle communication, and generates a map for the opposite lane based on this information, allowing for efficient map creation before the vehicle travels on the return path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the subject vehicle travels on each lane to generate map information, then the map accuracy is improved, but the time consumption and productivity deteriorate
Solution Approach 1:
The patent merges the map generation processes of multiple vehicles by collecting and integrating map information from both the subject vehicle and other vehicles that have traversed the same or overlapping routes. This combines multiple data sources to achieve comprehensive map coverage without requiring the subject vehicle to physically travel every lane.
Solution Approach 2:
The system performs preliminary map generation actions by other vehicles before the subject vehicle needs the information. Map information is collected and stored in advance by vehicles that have already traversed the routes, making the data available for the subject vehicle without requiring it to repeat the traversal.
2Productivity
If the subject vehicle collects map information from multiple sources, then the map generation efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent introduces a server as an intermediary that centralizes the collection, storage, and distribution of map information. Instead of direct peer-to-peer communication between vehicles, the server mediates all data exchange, simplifying the system architecture and reducing the complexity of inter-vehicle communication protocols.
Solution Approach 2:
The server performs multiple functions including receiving map information from various vehicles, storing the data in a centralized database, processing and validating the information, and distributing it to requesting vehicles. This multi-functional approach consolidates complexity into a single universal platform.
Data Source
AI summary
A map generation apparatus including a microprocessor. The microprocessor is configured to perform recognizing another vehicle traveling on an opposite lane opposite to a current lane on which a subject vehicle travels, acquiring an information of an external situation around the other vehicle in a route matching section when the other vehicle is recognized, the information of the external situation being obtained by the other vehicle traveling on the opposite lane, the route matching section being a section in which a driving route of the subject vehicle and a driving route of the other vehicle match in a driving route including the current lane and the opposite lane, and generating a map for the opposite lane in the route matching section, based on the information of the external situation.