Patent ID: 8762039
Filing Date: 2014-06-24
Classification: G08G

Abstract:
1. A server-based traffic congestion resolution and driving assistance method comprising the steps of: obtaining an acceleration of vehicles subject to information delivery; calculating a power spectrum corresponding to frequencies from frequency analysis of the obtained acceleration; calculating a simple regression line of the calculated power spectrum, and calculating a maximum value of an amount of change in a slope of the simple regression line within a predetermined frequency range as a maximum value of the slope; detecting an intervehicular distance between each vehicle and a preceding vehicle; estimating an intervehicular distance distribution from the detected intervehicular distance using a distribution estimating method; calculating a minimum value of a covariance from the estimated intervehicular distance distribution; estimating a vehicle group distribution ahead from a correlation between the minimum value of the covariance and the maximum value of the slope; performing a real-time traffic congestion prediction based on the estimated vehicle group distribution; and delivering real-time traffic congestion prediction information first to vehicles highly impacted by traffic congestion formation in a vehicle group comprising a plurality of vehicles.