Digital License Plate Display Modes for Visible Data and Low Power
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Solution Overview
Problem
Current digital license plate systems lack an efficient method for presenting and updating vehicle identification and registration information, as well as providing additional services like advertising and law enforcement notifications, in a manner that is both visible and power-efficient.
Innovation Solution
A digital license plate system that utilizes an electronically readable visual indicator, such as a QR code, to display vehicle identification and registration information, as well as messages like advertisements and law enforcement notifications, while optimizing power consumption through various operational modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a digital license plate system displays multiple types of information (vehicle identification, registration information, advertisements, law enforcement notifications), then the information presentation capability is improved, but the power consumption increases
Solution Approach 1:
The display system dynamically adjusts its operational state based on the type of information being presented. Critical information like law enforcement notifications and vehicle identification are displayed with higher visibility and longer duration, while advertisements use lower power modes. The system transitions between different display states (active, standby, sleep) to optimize power consumption while maintaining information presentation versatility.
Solution Approach 2:
The display system uses periodic updating for different information types. Vehicle identification and registration information are updated continuously or at regular intervals to ensure visibility. Advertisements are displayed periodically rather than continuously, and law enforcement notifications are presented in periodic cycles. This periodic action reduces overall power consumption while maintaining the ability to present multiple information types.
2Loss of information
If the display updates vehicle information frequently to maintain accuracy, then the information freshness is improved, but the power consumption increases
Solution Approach 1:
The system performs preliminary updates of vehicle information at scheduled intervals or in anticipation of needed information. Registration information and vehicle identification are pre-loaded and updated before they are likely to be queried or displayed. This preliminary action ensures information freshness is maintained without requiring continuous real-time updates, thereby reducing power consumption.
Solution Approach 2:
The display system incorporates feedback mechanisms to determine when information updates are necessary. Sensors detect ambient light conditions, vehicle motion state, and display visibility requirements to trigger updates only when needed. This feedback-driven approach maintains information freshness by updating only when conditions warrant it, avoiding unnecessary power consumption from continuous updates.
3Illumination intensity
If the display is made highly visible to ensure readability of vehicle information, then the visibility is improved, but the power consumption increases
Solution Approach 1:
The display system applies different illumination intensities to different regions or types of information. Critical information such as vehicle identification, registration numbers, and law enforcement notifications are displayed with high illumination intensity for maximum visibility. Advertisements and secondary information use lower illumination levels. This local quality approach ensures essential information remains highly visible while reducing overall power consumption.
Solution Approach 2:
The display utilizes color variations to convey different types of information with different power requirements. High-visibility colors are used for critical vehicle information and law enforcement notifications to ensure readability. Advertisements and non-critical information use lower-contrast or dimmer colors that consume less power. This color differentiation maintains visibility for essential information while reducing power consumption for secondary content.
Data Source
AI summary
A digital license plate attachable to a vehicle and having a display, a location module, a communication module, and a controller. The location module generates at least a location data based on a location of the digital license plate. The controller is connected to the display, the location module, and the communication module, wherein the controller manipulates the display to provide services based on at least the location data.