Autonomous Driving Path Updates Using Layered Map and Sensor Data
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Solution Overview
Problem
Current vehicle systems lack an efficient method to provide optimized horizon information for autonomous driving, which is crucial for safe and convenient navigation, especially in dynamic environments where multiple path options and moving objects are involved.
Innovation Solution
A path providing device and method that utilize a communication unit to receive map information, an interface unit to gather sensing data, and a processor to identify the vehicle's lane, determine an optimal path, generate autonomous driving visibility information, and update the path based on dynamic information, while storing and managing map data from multiple suppliers in separate storage spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple map information layers from different suppliers are stored and processed, then the accuracy and reliability of autonomous driving path determination is improved, but the device complexity and data management burden increase
Solution Approach 1:
The patent segments map information from different suppliers into separate storage layers, allowing independent management and processing of each data source. This segmentation enables the system to handle multiple map information sources without overwhelming complexity, as each layer can be processed individually through the determination unit.
Solution Approach 2:
The patent introduces a determination unit as an intermediary component that mediates between multiple map information layers and the path determination process. This intermediary selectively determines which map information layers to use based on current driving conditions, reducing the direct complexity burden while maintaining reliability through multi-source validation.
2Productivity
If map information is stored in separate storage spaces by supplier, then data organization and retrieval efficiency are improved, but the memory requirements and storage complexity increase
Solution Approach 1:
The patent divides map information storage into separate storage spaces organized by supplier, enabling efficient retrieval of specific data sources when needed. This segmentation allows the system to quickly access relevant map information without processing entire datasets, improving retrieval efficiency while using storage capacity selectively.
Solution Approach 2:
The patent implements partial action by loading and processing only the necessary map information layers from storage based on current driving conditions and requirements. Rather than continuously processing all stored map data, the system selectively accesses relevant portions, reducing active memory usage while maintaining fast retrieval capability.
3Speed
If autonomous driving visibility information is generated and transmitted in real-time, then the responsiveness and safety of the autonomous driving system are improved, but the energy consumption and processing load increase
Solution Approach 1:
The patent implements periodic action by generating and transmitting autonomous driving visibility information at optimized intervals rather than continuously. The transmission unit sends updated path information based on determined refresh rates and changing driving conditions, maintaining real-time responsiveness while reducing unnecessary processing and energy consumption during stable driving states.
Solution Approach 2:
The patent applies dynamics by adjusting the frequency and detail of visibility information generation based on current driving conditions. During high-dynamic situations such as intersections or changing lanes, the system increases processing and transmission frequency. During stable cruising, it reduces processing load while maintaining essential safety information updates.
Data Source
AI summary
A path providing device configured to provide a path information to a vehicle includes: a communication unit configured to receive map information from a server, the map information including a plurality of layers of data, an interface unit configured to receive sensing information from one or more sensors disposed at the vehicle, a memory configured to store information used to determine and update the optimal path, and divided into a plurality of storage spaces, and a processor configured determine an optimal path for guiding the vehicle from an identified lane, generate autonomous driving visibility information based on the sensing information and the determined optimal path, update the optimal path based on dynamic information related to a movable object located in the optimal path and the autonomous driving visibility information, and store the plurality of map information separately in the plurality of storage space.