Display health check system for a digital license plate
OwnerTodd Christopher Masoninventor
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Abstract
A digital license plate comprising includes a display system capable of showing a first image and a power supply rail connected to the display system. A display controller is provided with a data connection to the display system and arranged to measure at least one of power consumption and impedance of the power supply rail. The display controller is further configured to prevent sending a second image to the display system if display failure is indicated by measured power consumption or impedance as being below a defined threshold.
Claims19
A digital license plate comprising:
- a display system capable of showing a first image;
- a power supply rail connected to the display system;
- and
- a display controller having a data connection to the display system, the display controller arranged to measure at least one of power consumption and impedance of the power supply rail, and further configured to prevent sending a second image to the display system if display failure is indicated by measured power consumption or impedance as being below a defined threshold.
A method of operating a digital license plate comprising the steps of:
- displaying a first image;
- measuring at least one of power consumption and impedance of a power supply rail;
- and
- preventing sending of a second image to the display system if display failure is indicated by measured power consumption or impedance as being below a defined threshold.
A method of operating a digital license plate comprising the steps of:
- receiving a display update request for a display;
- measuring at least one of power consumption and impedance of a power supply rail connected to the display;
- and
- if display failure has occurred as indicated by measured power consumption or impedance as being below a defined threshold, abort requested display update.
Dependencies are inferred from the claim text.