Voice Guidance Mark Prioritization for Clearer Route Instructions
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Solution Overview
Problem
Existing voice route guidance systems lack the ability to prioritize and utilize specific marks to provide easy-to-understand guidance for users, making it difficult for users to comprehend navigation instructions effectively.
Innovation Solution
A voice output device and method that determine the priority of marks at guidance points based on predetermined criteria, using either concrete or conceptual marks to generate and output guidance voice, ensuring high-priority marks are used for clear navigation instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple types of marks are used for voice guidance at guidance points, then the guidance information becomes more comprehensive, but it becomes difficult for users to identify the most important guidance points clearly
Solution Approach 1:
The patent applies local quality by assigning different priority levels to different marks based on their importance and recognizability. High-priority marks (such as recognizable landmarks like towers or mountains) are emphasized more prominently in the voice guidance, while lower-priority marks are mentioned with less emphasis. This allows the system to provide comprehensive guidance information while making the most important guidance points stand out to users.
Solution Approach 2:
The patent changes the parameter of mark selection by introducing a priority level parameter. Instead of using all marks equally, the system evaluates marks based on criteria such as recognizability, uniqueness, and importance to the route, then selects and emphasizes high-priority marks in the voice guidance. This parameter-based selection resolves the contradiction by filtering comprehensive information into prioritized guidance.
2Reliability
If all marks at guidance points are used for voice guidance, then the guidance coverage is complete, but the guidance becomes complex and hard to understand
Solution Approach 1:
The patent extracts only the high-priority marks from the complete set of marks at each guidance point. By evaluating marks based on priority criteria (recognizability, uniqueness, importance) and selecting only the top-priority marks for voice guidance, the system maintains complete guidance coverage while simplifying the actual guidance output to only the most essential information.
Solution Approach 2:
The patent segments the marks into different priority levels (high-priority, medium-priority, low-priority) based on evaluation criteria. This segmentation allows the system to process and present guidance information in a structured manner, highlighting high-priority marks while still maintaining awareness of all marks for complete coverage.
3Loss of information
If non-recognizable marks are used for voice guidance, then the guidance covers all points, but users cannot easily comprehend the guidance
Solution Approach 1:
The patent introduces a recognizability parameter as a key criterion for mark evaluation. Marks are assessed based on how easily they can be recognized and understood by users (such as recognizable landmarks like towers, mountains, or distinctive buildings). High-priority marks with high recognizability are emphasized in voice guidance, while less recognizable marks are either mentioned with less emphasis or supplemented with descriptive information to improve comprehension.
Data Source
AI summary
In a voice output device, the storage unit stores priority predetermined for each type of marks used in voice guidance at guidance points. The guidance voice generation unit determines the mark to be used for voice guidance at the guidance point based on the priority, for each of the guidance points included in a guide route of a mobile body, and generates guidance voice using the determined mark. The voice output unit outputs the generated guidance voice at an utterance point where the guidance voice for the guidance point is to be uttered.