公开(公告)号：US20230039656A1

公开(公告)日：2023-02-09

申请号：US17873503

申请日：2022-07-26

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Jin Yan ,  Qiushu Chen ,  Ajay Raghavan ,  Peter Kiesel ,  Jingxiao Liu

IPC: G01L1/24 ,  G08G1/01 ,  G08G1/015

Abstract: A sensor network comprises at least one lateral optical fiber and at least one longitudinal optical fiber. The lateral fiber comprises optical sensors coupled to a pavement in a transverse orientation relative to a direction of vehicle travel along the pavement. The longitudinal fiber comprises optical sensors coupled to the pavement in a longitudinal orientation relative to the direction of vehicle travel. The optical sensors are configured to produce wavelength shift signals comprising one or more lateral strain signals associated with the lateral fiber and one or more tangential strain signals associated with the longitudinal fiber. A processor is operatively coupled to the sensor network and configured to determine a weight of vehicles moving along the pavement based on the lateral and tangential strain signals. A transmitter is operatively coupled to the processor and configured to transmit the weight of vehicles to a predetermined location.