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Method for Supplying Vehicle Mass Input to Traffic Intersection Management Systems

IP.com Disclosure Number: IPCOM000223166D
Publication Date: 2012-Nov-06
Document File: 1 page(s) / 26K

Publishing Venue

The IP.com Prior Art Database

Abstract

Identify individual vehicles and leverage external databases to establish vehicles' masses. This would enable systems to more precisely calculate traffic's cumulative momentum and minimize costs.

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Method for Supplying Vehicle Mass Input to Traffic Intersection Management Systems

Traffic intersection management systems aiming to preserve vehicles' momentum are limited by their ability to determine vehicles' mass. Some systems approximate mass by length, while others measure mass directly with in-road or on-road sensors. Reference patents:

7973675 - generic sensors
4370718 - approximates mass by length
4799381 - fiber optic load sensor
7689347 - (claim 1.c) cameras and image analysis determine location, speed, direction of travel, size, and distance; the focus in this patent is in making such determinations on the images alone rather than consulting with external databases, as suggested below.

Identify individual vehicles and leverage external databases to establish vehicles' masses. This would enable systems to more precisely calculate traffic's cumulative momentum and minimize costs.

This invention uses license plate readers and/or USDOT number readers (optical character recognition; front/rear/side views) and/or active transponder and/or passive RFID to identify individual vehicles. The invention requests information about each identified vehicle from external databases (e.g. Department of Motor Vehicles, Department of Transportation), caching information as necessary to improve performance. For example, this could be based on weigh station data for transfer trucks, or vehicle type for passenger or recreational vehicles. If/when the system cannot identify a...