Vehicle Navigation Route Guidance for Deviation-Aware Display Control
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Solution Overview
Problem
The existing vehicle navigation systems cause a strange feeling for occupants when the vehicle deviates from the set route, as the navigation map is updated less frequently than high-definition maps used for automatic driving, leading to discrepancies and incorrect route displays.
Innovation Solution
A vehicle navigation apparatus that includes a route guidance control unit to determine if the vehicle has deviated from the set route and stops or restarts guidance until the vehicle reaches the next waypoint, using a combination of map information, position acquisition, and route setting units to provide accurate route guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the navigation system continuously provides route guidance, then the occupant receives constant navigation information, but the occupant experiences a strange feeling when the vehicle deviates from the set route due to map discrepancies
Solution Approach 1:
The route guidance control unit continuously monitors the vehicle's actual position and compares it with the navigation route. When a deviation is detected, the system provides feedback by stopping the route guidance, thereby avoiding continued display of inaccurate information that would confuse the occupant.
Solution Approach 2:
The route guidance display is made dynamic by conditionally stopping or continuing based on real-time deviation detection. The system adapts its behavior (stopping guidance) when the vehicle deviates from the planned route, rather than maintaining a static continuous display mode.
2Object-affected harmful factors
If the navigation system stops route guidance when deviation is detected, then the occupant avoids confusion from inaccurate route display, but the occupant loses navigation information until reaching the next waypoint
Solution Approach 1:
Instead of completely stopping navigation functionality, the system applies partial action by stopping only the route guidance display while maintaining other navigation functions. This provides a balanced solution that reduces confusion while preserving essential navigation information.
3Measurement precision
If the navigation system continuously monitors vehicle position to detect route deviation, then the route guidance accuracy is improved, but the device complexity increases
Solution Approach 1:
The position information acquisition unit serves multiple functions: it provides position data for route calculation, enables real-time deviation detection, and supports the route guidance control. This multi-functionality reduces the need for separate dedicated monitoring components, thereby limiting the increase in device complexity.
Data Source
AI summary
A vehicle navigation apparatus includes a vehicle navigation unit and a route guidance control unit. The vehicle navigation unit includes a route setting unit and a navigation control unit. The route setting unit sets a route to a destination point on the basis of information on a position of a vehicle, information on a destination point, and first map information stored in a storage. The navigation control unit performs guidance on the route and controls the form of displaying the route on a display. The route guidance control unit includes at least one processor determining the driving entity of a vehicle. In a case where the at least one processor determines that the driving entity of the vehicle is the vehicle itself and the vehicle deviates from the route, the at least one processor stops the guidance until the vehicle reaches a next waypoint of the route.