Dispatch Radio Navigation Alert Prioritization
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Solution Overview
Problem
In vehicular dispatch communication systems, navigational instructions often conflict with dispatch voice communications, as drivers must multitask and prioritize between driving and receiving critical dispatch calls, leading to potential misunderstandings due to the distraction of combining navigation and dispatch audio.
Innovation Solution
The system integrates and prioritizes navigational alerts, comprising voice instructions and tones, which are selectively transmitted based on dispatch call parameters such as criticality level, user ID, and time required for maneuvers, ensuring that navigational alerts do not compromise mission-critical voice communications by automatically adjusting between tone-only and voice-tone modes during dispatch calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hands-free navigation systems provide continuous voice navigation instructions, then drivers receive comprehensive navigational guidance, but dispatch voice communications are disrupted and misunderstood
Solution Approach 1:
The navigation system dynamically adjusts its behavior based on real-time dispatch call status. When a dispatch call is detected, the system transitions from continuous voice instructions to tone-only or suppressed navigation alerts, allowing flexible adaptation between navigation and communication priorities
Solution Approach 2:
The system extracts the critical navigation information (turn directions, route changes) and conveys it through alternative means (tones, visual displays) during dispatch calls, separating the essential navigation function from the conflicting voice communication
2Reliability
If the system suppresses all navigation alerts during dispatch calls, then communication clarity is maintained, but navigation guidance is lost
Solution Approach 1:
The system introduces tone signals as an intermediary carrier for navigation information during dispatch calls. These tones serve as a coded language that conveys navigation instructions without interfering with voice communications, allowing both functions to coexist
Solution Approach 2:
The system transitions navigation information from the auditory voice dimension to the auditory tone dimension, using different frequency patterns and signal characteristics to encode navigation data that can be perceived alongside dispatch communications
3Loss of information
If the system uses visual displays for navigation, then drivers can see turn instructions, but driver attention is diverted from the road
Solution Approach 1:
The system replaces the visual display mechanism with acoustic signaling mechanisms. Instead of showing turns on a screen, the system uses tone patterns and audio cues to communicate navigation instructions, maintaining information delivery while keeping the driver's visual attention on the road
Data Source
AI summary
A method and apparatus provide enhanced navigational alerts for a vehicular two-way radio operating in a dispatch communication system. The integration and prioritization of navigational alerts with dispatch voice communication ensures that navigational alerts do not compromise mission critical voice communications. Navigational alerts in the form of navigational voice instructions and navigational tones are selectively prioritized based on predetermined parameters associated with the dispatch call.