GPS Return Route Reversal via Preliminary Action
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Solution Overview
Problem
Conventional GPS devices require users to re-input starting and destination points to obtain a return route, leading to inefficiencies and user inconvenience due to the need for re-searching and re-planning the route.
Innovation Solution
The method involves determining if the starting and destination points for the return trip are reversed, allowing the GPS device to automatically provide a return route by reversing the original route stored in the database, thereby eliminating the need for re-searching and re-planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the user re-inputs starting point and destination to obtain a return route, then the GPS device can provide a new route, but the time required for searching and planning increases
Solution Approach 1:
The GPS device performs preliminary action by storing the original route information (starting point, destination, and route path) in memory before the return trip is needed. When the user requests a return route, the system retrieves the pre-stored original route data and reverses it to generate the return route, eliminating the need for re-searching and re-planning.
Solution Approach 2:
The invention applies inversion by reversing the original route path to generate the return route. Instead of performing a completely new route planning operation, the system takes the original route from starting point to destination and inverts it to create the return route from destination back to starting point, significantly reducing computation time.
2Adaptability or versatility
If the GPS device re-searches and re-plans the route for return trip, then a new route can be provided, but user convenience decreases due to repeated operations
Solution Approach 1:
The GPS device performs self-service by automatically generating the return route based on pre-stored original route data. When the user requests a return route, the system autonomously retrieves the original route information, reverses it, and provides the return route without requiring the user to re-input starting point and destination, thereby enhancing operational convenience.
Solution Approach 2:
The system performs preliminary action by storing the original route data in memory before the return trip is needed. This pre-stored information enables the GPS device to automatically generate return routes without requiring repeated user input or re-planning operations, significantly improving ease of operation.
3Loss of time
If the GPS device stores the original route data, then the return route can be generated quickly by reversing, but the device complexity increases
Solution Approach 1:
The GPS device performs preliminary action by storing the original route information (starting point, destination, and route path) in memory before the return trip is needed. This pre-stored data enables quick generation of return routes through simple reversal operations, reducing the time required without requiring complex real-time processing.
Solution Approach 2:
The invention uses copying by creating a copy of the original route data in memory. Instead of performing complex re-planning operations, the system copies the original route information and reverses it to generate the return route, significantly reducing processing time and computational complexity.
Data Source
AI summary
A method of providing a return route for a global positioning system (GPS) device is provided. When the starting point and the destination of the return route are exactly opposite to the original starting point and the destination, the GPS device plans and provides a reverse route without re-setting the starting point and the destination all over again, and therefore the time of obtaining a return route can be substantially reduced. The efficiency of the GPS device in planning routes can be effectively promoted.