Navigation Guidance Controller Prioritization Logic
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing navigation systems face issues with overlapping guidance events, leading to delayed or meaningless outputs when lower-priority guidance is interrupted or cancelled, resulting in delayed execution and potential lack of relevant information to the user.
Innovation Solution
A navigation system with a controller and user interface that determines the output method based on execution conditions specific to each guidance type, allowing for prioritization and timely execution of higher-priority guidance while inhibiting meaningless outputs by using a simple display for lower-priority events when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If plural guidances are outputted in the order of event occurrence, then all guidance information is provided, but timing is delayed and guidance becomes meaningless to the user
Solution Approach 1:
The system determines in advance whether a lower-priority guidance should be executed by checking if the vehicle will pass the guidance output location within a predetermined time from the current time. This preliminary determination prevents meaningless guidance outputs while ensuring timely information delivery.
Solution Approach 2:
The system dynamically adjusts guidance output based on real-time vehicle position and speed. By continuously monitoring whether the vehicle will pass the guidance location within the predetermined time, the system adapts its behavior to avoid providing outdated or meaningless guidance information.
2Loss of time
If lower-priority guidance is interrupted or cancelled, then higher-priority guidance can be outputted timely, but lower-priority guidance information is lost
Solution Approach 1:
Before executing lower-priority guidance, the system preliminarily determines whether the vehicle will pass the guidance location within a predetermined time. This allows the system to decide in advance whether to execute the guidance or wait for higher-priority events, preventing information loss while maintaining timely high-priority output.
Solution Approach 2:
The system uses feedback from real-time vehicle position and speed data to determine whether to execute lower-priority guidance. By continuously monitoring the vehicle's progress toward the guidance location, the system can dynamically decide whether to proceed with lower-priority guidance or wait for higher-priority events.
3Reliability
If speech guidance is interrupted for higher-priority events, then important information is conveyed timely, but the interruption creates gaps in information flow
Solution Approach 1:
The system preliminarily determines whether to execute lower-priority speech guidance by checking if the vehicle will pass the guidance location within a predetermined time. This allows the system to maintain information flow continuity by only interrupting when necessary, ensuring both reliable important guidance delivery and smooth information flow.
Data Source
AI summary
There is provided a navigation system having a guidance-controller, the guidance-controller controlling the sequence of guidances, and priority, according to an execution condition set depending on the type of a relevant guidance, while determining whether or not a guidance is executed according to the execution condition to thereby alter the teaching of guidance-execution. If overlapping by plural guidances using speech, and screen display occurs, the simple display of the guidance lower in priority is executed, and if the guidance falls outside an effective range, the guidance is interrupted, or the guidance during standby-display is not executed. Thereby, plural guidances are concurrently displayed, and a meaningless guidance is not displayed.