Navigation System Destination Modification for Ferry Arrival Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Navigation systems fail to accurately determine the arrival of a vehicle at a destination that includes a ferry or railroad route, leading to unnecessary rerouting when the vehicle is on board a ferry or train, as they cannot confirm arrival at a destination on water or rail.
Innovation Solution
A navigation system with input, determining, modifying, and route guidance units that allow users to select a terminal when the destination is on a ferry or rail route, modifying the destination to a terminal, searching for a guide route, and determining arrival at the terminal or its vicinity, thereby preventing rerouting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the destination is set to a location on a ferry route or railroad, then the user can specify a destination on water or rail, but the navigation system cannot determine whether the vehicle has reached the destination when the ignition is turned off during transport
Solution Approach 1:
The system performs preliminary action by modifying the destination to a terminal location before the vehicle departs on the ferry or railroad. This prevents the arrival determination problem by ensuring the destination is set at a location where the vehicle can be detected upon arrival, rather than at a location on the water or rail where the vehicle cannot be tracked during transport.
2Productivity
If the navigation system performs rerouting when the ignition is turned on at the arrival terminal, then it searches for a route from the current position to the original destination, but this causes unnecessary rerouting and delays
Solution Approach 1:
The system performs preliminary action by pre-modifying the destination to the terminal location before departure. This eliminates the need for rerouting operations after arrival, as the destination is already correctly set at the terminal where the vehicle can be detected, thereby saving time and improving efficiency.
Solution Approach 2:
The system applies preliminary anti-action by preventing the unnecessary rerouting operation from occurring in the first place. By modifying the destination to the terminal before departure, the system anticipates and prevents the condition that would trigger rerouting, thus avoiding the time loss and computational overhead.
3Reliability
If the destination is modified to a terminal of the ferry route or railroad, then the arrival can be determined at the terminal, but the user's original intention to go to a specific location on the route may not be fulfilled
Solution Approach 1:
The system performs preliminary action by modifying the destination to the terminal before departure, ensuring reliable arrival determination. This preliminary modification is done in advance so that the user's original destination intention is preserved for post-arrival guidance, balancing both arrival detection and user intention fulfillment.
Solution Approach 2:
The navigation process is segmented into two phases: arrival detection phase (using the modified terminal destination) and final guidance phase (using the original user-specified destination). This segmentation allows the system to reliably detect arrival at the terminal while still fulfilling the user's original intention to reach a specific location on or near the ferry/rail route.
Data Source
Figure 1A~1C
Figure 2
Figure 3
AI summary
A navigation system includes an input unit that allows input of a destination, a determining unit that determines whether the input destination is a location on a ferry route, a modifying unit that modifies the input destination to the termination of a road linked to a departure terminal of the ferry route when it is determined that the input destination is on the ferry route, and a route guidance unit that searches for a guide route to the modified destination and performs guidance along the guide route searched for. When user's vehicle arrives at the termination or in the vicinity thereof, the route guidance unit determines that the vehicle has arrived at the destination and terminates the guidance.