Portable Navigation Device Conversation System Event Prioritization
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Solution Overview
Problem
Current portable navigation devices lack interactive communication between users and the system through speech recognition, limiting user interaction beyond basic voice-operated information retrieval.
Innovation Solution
The implementation of a conversation system in portable navigation devices, which includes a processing method and components like a knob, database, screen, calculating unit, voice module, and microprocessor, to manage conversation modes, schedule events based on priority scores, and reschedule notifications based on user inputs and external triggers, enabling interactive communication through voice alerts and screen displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If speech recognition function is added to portable navigation device, then user interaction capability is improved, but system complexity increases
Solution Approach 1:
The conversation system is divided into separate functional modules: voice module for speech recognition, calculating unit for processing, database for event storage, and notification module for output. This segmentation allows the complex speech recognition functionality to be integrated without overwhelming the system architecture, as each module handles a specific aspect of the interaction process independently.
2Loss of information
If conversation system actively informs user of multiple events, then information delivery is improved, but user disturbance increases
Solution Approach 1:
The system informs the user of events in a prioritized sequence rather than all at once. The voice module notifies the user of the first event, waits for response, then proceeds to the second event, and so on. This partial action approach ensures complete information delivery while preventing user disturbance by avoiding simultaneous multiple notifications.
Solution Approach 2:
The conversation system uses periodic notification intervals between events. After notifying the user of one event and receiving a response (or timeout), the system waits for a predetermined time period before notifying the next event. This periodic action allows information to be delivered systematically while giving the user time to process each notification, reducing overall disturbance.
3Ease of operation
If event notifications are rescheduled based on user input, then responsiveness is improved, but processing complexity increases
Solution Approach 1:
The system continuously monitors for user inputs (voice commands, button presses, touch screen interactions) and uses this feedback to dynamically reschedule event notifications. When user input is detected, the calculating unit recalculates priority scores and adjusts the notification sequence. This feedback mechanism enables responsive adaptability while keeping processing complexity manageable through systematic priority reevaluation rather than complete system redesign.
Data Source
AI summary
A processing method for a portable navigation device equipped with a conversation system is disclosed. When the portable navigation device is operating in a dumb mode, events are displayed on a screen of the device according to preset conditions and parameters. In a normal mode, events scheduled in the 1st to Xth order are pushed to the user according to preset conditions, and, in a hype mode, events are displayed on the screen based on preset conditions and parameters while events residing at the top layer of the screen are actively and repeatedly pushed to the user.