A system for determining instances when a vehicle's indicated speed exceeds a governing speed includes a receiver to receive information from which a vehicle's location envelope, indicated direction of travel, and indicated speed can be derived, and a processor. The processer is configured to ascertain a location envelope in which the vehicle is located, an indicated speed of the vehicle, and a direction of travel of the vehicle at a sample time. It is also configured to select the governing speed for the vehicle at the sample time, which includes ascertaining possible route segments (e.g., road segments) with at least a portion within the location envelope, eliminating route segments having a route segment direction of travel inconsistent with the indicated direction of travel, and selecting as the governing speed a speed associated with a remaining route segment. The processor will then determine if the indicated speed exceeds the governing speed.
System and method for detecting speed limit violations
2015-05-28
Patent
Electronic Resource
English
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