Speed Limit Change Notification via Dynamic Indicator Alteration
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Solution Overview
Problem
Mobile electronic devices often rely on users to reactively check speed limit information, which can lead to missed changes in speed limits due to weather, traffic, or lack of visible signs, potentially resulting in violations or inefficient navigation.
Innovation Solution
Implementing a notification system in mobile electronic devices that alters attributes such as hue, size, or shape of the map and speed limit indicator graphics to visually and audibly alert users of changes in speed limits, providing proactive awareness of actual or impending changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users reactively check speed limit information displayed on mobile devices, then users can access speed limit data, but users may miss speed limit changes due to weather, traffic, or lack of visible signs
Solution Approach 1:
The system proactively detects and notifies users of speed limit changes before users would need to check the information themselves. The notification system monitors for changes in speed limit data and automatically alerts users, eliminating the need for users to reactively check for updates and ensuring they receive timely information about changes.
Solution Approach 2:
The system implements a feedback mechanism where the mobile device continuously monitors speed limit data and compares it against previously displayed information. When changes are detected, the system provides feedback to the user through notifications, ensuring users are informed of updates without needing to manually refresh or check the information.
2Loss of information
If traditional road signs are used to display speed limits, then speed limit information is provided, but visibility is reduced due to weather conditions, traffic, and other factors
Solution Approach 1:
The mobile device acts as an intermediary between the speed limit information source and the user. Instead of relying directly on physical road signs that are affected by weather and traffic, the system receives speed limit data electronically and displays it on the mobile device screen, which is not subject to the same environmental limitations.
Solution Approach 2:
The system replaces the mechanical/physical road sign system with an electronic information delivery system. Speed limit data is transmitted electronically to the mobile device and displayed on the screen, substituting the physical sign medium with an electronic display that can be updated dynamically and is not affected by weather conditions in the same way.
3Loss of information
If the display continuously shows speed limit information, then users have constant awareness, but the notification of changes may not be sufficiently noticeable
Solution Approach 1:
The notification system utilizes color changes to alert users of speed limit changes. When a change is detected, the display changes the color of the speed limit indicator or surrounding elements, providing a visually distinct and noticeable notification that stands out from the normal display state, making changes immediately apparent to users.
Solution Approach 2:
The system employs periodic visual emphasis in notifications, such as flashing or pulsing the speed limit indicator when changes occur. This periodic action draws user attention to the change without requiring continuous high-intensity display, balancing noticeability with user comfort and battery consumption.
Data Source
AI summary
Techniques are described that may be implemented in a mobile electronic device providing navigation functionality to furnish a notification that the indicated speed limit of a roadway being traversed has changed. In an implementation, the display of the mobile electronic device is configured to display navigation information including a roadway graphic representing a roadway being traversed by the mobile electronic device and a speed limit indicator graphic for indicating the speed limit associated with the roadway. When a change in the indicated speed limit is encountered, an attribute of the navigation information is temporarily altered to provide a notification of the change.