Autonomous Driving Map Selection for Mixed Recording Standards
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Solution Overview
Problem
Existing autonomous driving systems face challenges in acquiring necessary information for navigation when using maps with different recording targets, as each map is created according to unique standards, leading to inconsistencies in content and methods for data acquisition.
Innovation Solution
An autonomous driving device that utilizes a control unit to determine necessary information using a unified method across multiple maps by associating first and second contents with positions, treating absent content as null values, and selecting maps based on conditions such as date and time of updating, content availability, and override occurrence rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple maps with different recording targets are used, then the coverage and adaptability of the autonomous driving system is improved, but the complexity of acquiring and processing information from different map standards increases
Solution Approach 1:
The patent introduces a standardization layer that acts as an intermediary between maps with different recording standards and the autonomous driving information acquisition process. This layer converts various map formats and standards into a unified internal representation, allowing the system to process information from multiple map sources without requiring separate processing methods for each map type.
Solution Approach 2:
The patent creates a universal information acquisition method that can handle multiple map types and standards through a single unified approach. The system designs a general-purpose processing framework that adapts to different map contents and recording targets, eliminating the need for map-specific processing logic and reducing overall system complexity.
2Reliability
If detailed maps are created for all roads, then the accuracy and completeness of autonomous driving information is improved, but the cost and time required for map creation increases significantly
Solution Approach 1:
The patent applies partial action by selectively acquiring only the specific information needed for autonomous driving from available map sources, rather than requiring complete detailed maps of all roads. The system can function with partial map coverage by using alternative information sources or methods for areas not covered in detail, reducing the time and resources needed for comprehensive map creation.
3Adaptability or versatility
If maps are created by different companies or organizations according to their own standards, then the diversity and availability of map sources is improved, but the difficulty of unifying recording targets and processing methods increases
Solution Approach 1:
The patent transforms the parameters and structure of incoming map data from various standards into a unified internal parameter set. By changing the representation parameters of different map formats into a common framework, the system can process diverse map sources without requiring standardization agreements between different map providers.
Data Source
AI summary
An autonomous driving device includes a first map including a first content and a second content associated with positions respectively, a second map including the first content associated with the position and in which the second content is not a recording target, and a control unit performing the autonomous driving. When the autonomous driving is performed using the first map, the control unit determines information necessary for the autonomous driving using a first method based on the first content and the second content. When the autonomous driving is performed using the second map, the control unit determines the information necessary for the autonomous driving using a method same as the first method based on the first content corresponding to a second position recorded in the second map and information indicating that the second content corresponding to the second position recorded in the second map is not present.