Lane Selecting Device for Autonomous Vehicle Navigation
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Solution Overview
Problem
Existing lane selection systems do not account for multiple lanes on a road, which can affect travel time and efficiency in autonomous vehicle navigation.
Innovation Solution
A lane selecting device that includes a map database with lane information, a present-position specifying section, and a recommended-lane selecting section to calculate a recommendation degree for each lane based on the vehicle's position and lane information, allowing for optimal lane selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a navigation system does not consider multiple lanes, then the system complexity is reduced, but the travel time and navigation efficiency deteriorate
Solution Approach 1:
The patent segments the road into multiple lanes and evaluates each lane separately. The lane selection device divides the navigation problem into lane-specific sub-problems, calculating recommendation degrees for each lane independently based on lane information from the map database, thereby reducing overall system complexity while improving travel time efficiency.
Solution Approach 2:
The patent adds the lane dimension to the traditional route navigation system. Instead of only considering the road level, the system now operates at the lane level by incorporating lane information from the map database and calculating recommendation degrees for each lane, enabling more efficient navigation without excessive complexity increase.
2Measurement precision
If lane information is processed for each lane separately, then navigation precision is improved, but computational complexity increases
Solution Approach 1:
The patent performs preliminary processing by pre-storing lane information in the map database before navigation occurs. This allows the lane selection device to quickly retrieve and evaluate lane data during navigation without performing complex real-time calculations, thereby improving navigation precision while keeping computational complexity manageable.
Data Source
AI summary
To make it possible to execute processing taking into account the fact that a plurality of lanes are provided in a road. An automatic driving support device 500 includes a map database 541 including lane information concerning lanes of a road, a position specifying section 173 that specifies a present position of a vehicle, and a recommended-lane selecting section 171 that calculates, on the basis of the lane information, a recommendation degree of each of lanes of a road on which the vehicle is traveling and selects, on the basis of the calculated recommendation degree, a lane in which the vehicle travels. Therefore, it is possible to select a recommended lane taking into account the fact that a plurality of lanes are provided in a road.