Qi Zhang Lin

US Patent:

20190318273, Oct 17, 2019

Filed:

Apr 17, 2018

Appl. No.:

15/955647

Inventors:

- Irvine CA, US
Qi Lin - Irvine CA, US
Huabing Wang - Pittsburgh PA, US
Lianyu Chu - Irvine CA, US

Assignee:

CLR Analytics Inc. - Irvine CA

International Classification:

G06N 99/00
G06N 5/04

Abstract:

Single loop inductive sensors are widely deployed in infrastructure for traffic data collection, however, these loops currently provide little more than vehicle detection. A system and method are provided that enable single loop inductive sensors to be used for vehicle classification (e.g., identification as motorcycle, passenger car, bus, etc.). Classification may be done using the Federal Highway Administration's 13 class system. Initially a signature library is built from vehicle signatures with known classifications. Vehicle signature waveforms of unknown classification obtained from inductive loop sensors are analyzed to identify specific features in the waveform including the number of “peaks”, the first peak location and its magnitude. A classifier (e.g., K-nearest neighbor) uses a representation of the vehicle signature and the features to determine from the signature library the classification of the vehicle.