Patent ID: 7684946
Filing Date: 2010-03-23
Classification: G01G

Abstract:
1. An auto-calibrating WIM system, comprising: a WIM scale for weighing vehicles of interest while said vehicles are in motion, said WIM scale adapted to automatically transmit weight data for at least some of said vehicles of interest to a database; a static scale for weighing vehicles of interest while said vehicles are at rest, said static scale adapted to automatically transmit weight data for at least some of said vehicles of interest to a database; vehicle identification data associated with said vehicles of interest; a database for receiving weight data from said at least one WIM scale and said at least one static scale, WIM scale weight data and static scale weight data for the same vehicles automatically associated in said database using said identification data; a microprocessor-based device in communication with said database and said WIM scale, said microprocessor-based device for analyzing a collection of associated WIM scale weight data and static scale weight data and operative to periodically calculate a new WIM scale correction factor and to apply said correction factor to WIM scale weight readings.