Navigation System Route Deviation Handling
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Solution Overview
Problem
Existing navigation systems lack flexibility in handling deviations from predefined routes, requiring drivers to manually adjust intermediate destinations while driving, which can be unsafe and inconvenient.
Innovation Solution
A method where a navigation apparatus detects deviations from the proposed route and automatically generates an alternative route with a new intermediate destination, such as a filling station or restaurant, without requiring the driver to manually update the navigation system, using geo-objects and user-specific preferences to determine the new route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the navigation system requires manual updates of intermediate destinations, then the system maintains precise route control, but the driver's workload increases and safety decreases
Solution Approach 1:
The navigation system automatically detects when the vehicle deviates from the predefined route and autonomously determines new intermediate destinations based on the vehicle's actual position and pre-stored geo-objects, eliminating the need for manual driver input while maintaining reliable route control
Solution Approach 2:
Geo-objects representing potential intermediate destinations (filling stations, restaurants, etc.) are pre-stored in the navigation system before the journey begins, enabling the system to quickly and automatically select appropriate destinations when route deviation occurs without requiring real-time manual input from the driver
2Ease of operation
If the navigation system automatically generates alternative routes with new intermediate destinations, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The system pre-stores multiple geo-objects representing different types of intermediate destinations (filling stations, restaurants, service areas) with associated metadata during system setup or before the journey, so that when route deviation occurs, the system can automatically select and route to an appropriate pre-defined destination without complex real-time decision-making algorithms
Solution Approach 2:
The system continuously monitors the vehicle's actual position and compares it with the predefined route, automatically detecting deviations and triggering the alternative route generation process, creating a closed-loop feedback system that operates transparently to the driver
3Adaptability or versatility
If the driver leaves the predefined route to access intermediate destinations, then the flexibility and adaptability improve, but the navigation system loses track of the original destination
Solution Approach 1:
The navigation system segments the journey into distinct phases: the original predefined route to the final destination, and intermediate detours to geo-objects. When a deviation occurs, the system creates a temporary sub-route to the intermediate destination while preserving the original destination as the ultimate target, allowing the driver to access needed locations without losing sight of the overall journey goal
Solution Approach 2:
The original destination information is stored and preserved in the system's memory before any route deviations occur, enabling the system to automatically reconstruct the complete route (original destination + intermediate geo-objects) after the driver returns to the main route, ensuring no information is lost
Data Source
AI summary
The invention relates to a method for assisting a user of a motor vehicle when driving the motor vehicle. A travel route is provided by a navigation apparatus, and a route actually being driven by the motor vehicle is ascertained. A comparison is made between the actual driving route ascertained and the travel route provided, and if a deviation criterion is met, it is ascertained that the motor vehicle has left the travel route provided. As a function of the ascertained departure from the travel route provided, at least one geo-object from a predefined category of geo-objects is established, the established geo-object is predefined as a geo-object having a user-specific interest and, as a function of the predefined geo-object, the established travel route is changed to an alternative route to the destination with the predefined geo-object as an intermediate destination.