Recommended Route Geometry for Driver Line of Sight Control
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Solution Overview
Problem
Conventional automatic driving technologies fail to provide sufficient driving assistance during sections involving changes in traveling direction, as they do not effectively direct the driver's line of sight towards the exit in a timely and prolonged manner.
Innovation Solution
An information processing device generates a recommended route with a changed section involving a change in traveling direction, comprising a first line and a second line, where the second line is longer than the first line and the angle between the tangential line of the second line and the exit line is within a predetermined range, ensuring the driver's line of sight is quickly and continuously directed towards the exit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional automatic driving technologies are used, then the vehicle can travel along the scheduled route, but the driver's line of sight is not effectively directed toward the exit in changed sections
Solution Approach 1:
The system pre-calculates an optimal route that proactively guides the driver's line of sight toward the exit before the vehicle reaches the changed section. By designing the route geometry in advance with specific angular constraints, the system ensures the driver's attention is directed to the exit area in advance, preventing attention loss rather than reacting to it.
Solution Approach 2:
The system changes the geometric parameters of the recommended route, specifically controlling the angle between the tangential line of the second line and the exit line to be within a predetermined angle range. This parameter optimization ensures the route naturally guides the driver's line of sight toward the exit, transforming the driving path to achieve both reliable assistance and maintained driver attention.
2Reliability
If the route is designed to quickly direct line of sight to the exit, then driving safety is improved, but the route complexity increases
Solution Approach 1:
The system employs parameter optimization by constraining the angle between the tangential line of the second line and the exit line within a predetermined range. This mathematical constraint simplifies the route generation process while ensuring the route effectively directs the driver's line of sight to the exit, achieving safety improvement without excessive complexity.
Solution Approach 2:
The system replaces complex mechanical or heuristic route design methods with an information-processing approach that uses geometric parameter calculations. By substituting the route generation process with computational angle constraints and optimization algorithms, the system achieves safe route design with manageable computational complexity rather than mechanical complexity.
3Duration of action of moving object
If the second line is made longer than the first line, then the driver's line of sight is directed toward the exit for longer duration, but the travel time increases
Solution Approach 1:
The system optimizes the duration parameter by constraining the angle between the tangential line of the second line and the exit line within a predetermined range. This angular constraint ensures the second line is sufficiently long to maintain driver attention on the exit for an adequate duration, while preventing excessive length that would cause unacceptable travel time delays. The parameter optimization balances attention duration with time efficiency.
Data Source
AI summary
An information processing device according to an embodiment has a recommended route generation function. The recommended route generation function generates a recommended route with a changed section involving a change in a traveling direction within a predetermined range on a scheduled traveling route, the changed section including a first line and a second line. The first line continues to a first position at an entrance of the changed section. The second line continues to a second position at an exit of the changed section. The second line is longer than the first line. A tangential line of the second line and an exit line of the changed section forms an angle within a predetermined angle range.