Voice Navigation Device Priority Weight Broadcasting
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Solution Overview
Problem
Existing voice navigation devices often interrupt important voice-guidance items with less important ones, compromising driving safety due to the lack of prioritization in broadcasting road condition messages.
Innovation Solution
A voice navigation device and method that utilizes a Satellite Global Positioning System with a receiver, voice-guidance-item priority weight database, and processor to ensure that voice-guidance items with higher priority weights are broadcasted preferentially by evaluating and comparing the priority weights of incoming messages and completing the broadcast of higher priority items before starting lower priority ones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the voice navigation device broadcasts voice-guidance items in the order they are received, then the broadcasting process is simple and fast, but important navigation information may be interrupted by less important information
Solution Approach 1:
The system pre-assigns priority weights to different types of voice-guidance items before broadcasting. When multiple items are received, the processor compares their priority weights and determines the broadcasting order in advance, ensuring that critical navigation information is always broadcast first without complex real-time interruptions.
Solution Approach 2:
The system introduces a priority weight parameter to characterize the importance of different voice-guidance items. By changing the broadcasting criterion from simple reception order to priority weight comparison, the system ensures that more important navigation information is always broadcast preferentially, resolving the contradiction between simplicity and reliability.
2Productivity
If the voice navigation device interrupts ongoing broadcasts to convey new information, then information delivery is timely, but critical guidance may be interrupted causing safety issues
Solution Approach 1:
The system pre-establishes a priority weight database that assigns numerical values to different voice-guidance item types. Before broadcasting, the processor retrieves and compares these pre-assigned weights, determining the optimal broadcasting sequence in advance. This ensures timely delivery of important information without interrupting critical ongoing broadcasts.
Solution Approach 2:
The system maintains continuous broadcasting of high-priority navigation information without interruption. By comparing priority weights before initiating broadcasts and ensuring higher priority items complete before lower priority ones begin, the system preserves the continuity of critical guidance while still delivering timely information updates.
Data Source
AI summary
The voice navigation method relates to a voice navigation device and a voice navigation method, which may be utilized in cooperation with the Satellite Global Positioning System. The method is used to broadcast a voice-guidance-item having higher requirement importance more preferentially than a voice-guidance-item having low requirement importance, even if the voice-guidance-item having low requirement importance is obtained when the voice-guidance-item having high requirement importance is still in progress.