Neutral Zones for GPS Navigation Off-Route Alerts
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Solution Overview
Problem
GPS navigation systems often provide unnecessary off-route notifications and route recalculation when users intentionally deviate from the calculated course, causing annoyance for those who plan to return to the original route.
Innovation Solution
Implementing a system that designates certain areas as 'neutral zones' during GPS navigation, where off-route notifications and route recalculation are disabled, allowing users to intentionally deviate without triggering alerts, by defining these zones through GPS coordinates and enabling user input for zone designation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS navigation provides off-route notifications and route recalculation when users deviate from the calculated course, then navigation accuracy is improved, but user experience deteriorates due to unnecessary notifications for intentional deviations
Solution Approach 1:
The patent applies local quality by creating neutral zones with different notification properties than the general navigation area. Within these designated zones, the system suppresses off-route notifications while maintaining them outside, allowing intentional deviations without triggering alerts. This resolves the contradiction by locally modifying notification behavior in specific geographic areas where users may intentionally deviate from the route.
2Reliability
If GPS system continuously monitors and notifies users of off-route deviations, then route guidance reliability is improved, but device complexity increases due to neutral zone management
Solution Approach 1:
The patent applies preliminary action by pre-defining neutral zones with their geographic boundaries and notification suppression properties before navigation begins. These zones are stored in the system and automatically applied when users enter them, eliminating the need for real-time complex decision-making about whether to suppress notifications. The system simply checks if the current location is within a pre-defined neutral zone and applies the appropriate notification behavior.
3Adaptability or versatility
If GPS navigation recalculates route when user goes off-course, then adaptability to unexpected obstacles is improved, but loss of time occurs due to unnecessary recalculation for intentional deviations
Solution Approach 1:
The patent applies local quality by implementing different route recalculation behaviors in different geographic areas. Within neutral zones, the system suppresses automatic route recalculation when users deviate from the planned course, assuming the deviation is intentional. Outside these zones, normal recalculation behavior is maintained. This resolves the time loss issue by preventing unnecessary recalculation in areas where intentional deviations are expected, while preserving route adaptability in other areas.
Data Source
AI summary
The described method and system provide for treatment of certain areas as neutral zones during GPS navigation to avoid unnecessary off-route notifications and route recalculation. A GPS unit determines whether the user has entered a geographic region designated as a neutral zone, and does not provide the user with off-route notifications while the user is within the neutral zone. Not providing off-route notifications may be implemented by the GPS device by considering the user to be within the calculated route while the user is within a neutral zone, or by disabling off-route notifications (and route recalculation) while the user is within the neutral zone. The neutral zone may be defined by a set of GPS coordinates. The neutral zone may further be polygonal, and the size of the neutral zone may be based on the accuracy of the GPS device.