Drive Assist System Section-Specific Control Data Processing
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Solution Overview
Problem
Conventional drive assist systems face high arithmetic processing loads due to the need to process large amounts of data for route guidance and vehicle control, particularly in advanced driver assistance systems, and struggle with providing adequate assistance due to the complexity of road network data.
Innovation Solution
A drive assist system that obtains and utilizes acceleration/deceleration information and direction-of-travel information specific to sections of roads, allowing for reduced processing loads by using these data to provide targeted control assistance to vehicles based on location and route information, rather than relying on conventional road network data that requires extensive calculations for speed changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional road network data is used for drive assist, then comprehensive route guidance is provided, but arithmetic processing load increases significantly
Solution Approach 1:
The patent extracts only the necessary control information (acceleration/deceleration and direction-of-travel) from the comprehensive road network data, separating essential drive assist parameters from unnecessary route guidance data. This extraction reduces the data volume processed while maintaining adequate drive assist functionality.
Solution Approach 2:
The patent applies local quality by providing different types of information for different road sections - sections requiring drive assist are marked with specific control information, while other sections use standard road network data. This localized approach reduces overall processing load while maintaining assist capability where needed.
2Reliability
If comprehensive road network data is processed, then adequate drive assist is provided, but data volume and processing complexity increase
Solution Approach 1:
The system extracts only essential control parameters (acceleration/deceleration information and direction-of-travel information) from the comprehensive road network data, eliminating redundant information while preserving adequate drive assist capability.
Solution Approach 2:
Instead of processing all road network data and filtering for control information, the patent inverts the approach by directly providing pre-processed control information for sections requiring drive assist, reducing the processing burden on the vehicle system.
3Reliability
If route search data is processed for drive assist, then comprehensive guidance is achieved, but processing time increases
Solution Approach 1:
The patent performs preliminary processing of road network data to extract control information before it reaches the vehicle system. By pre-processing the data and organizing it in a readily accessible format, the system eliminates time-consuming calculations during actual drive assist operations.
Solution Approach 2:
The system uses simplified copies of road network data that contain only the essential control parameters needed for drive assist. These copied data structures replicate the necessary information in a compact format that requires minimal processing time while maintaining guidance accuracy.
Data Source
AI summary
A drive assist system that includes circuitry that obtains information including at least one of acceleration/deceleration information and direction-of-travel information from a memory that stores at least one of the acceleration/deceleration information provided in relation to at least one of a set of a plurality of sections of a road and the direction-of-travel information provided in relation to at least one of the set of the plurality of sections of the road; obtains location information of a vehicle; and performs at least one of a acceleration/deceleration drive assist with regard to acceleration and/or deceleration of the vehicle based on the location information and the acceleration/deceleration information, and a direction drive assist with regard to a direction of travel of the vehicle based on the location information and the direction-of-travel information.