公开(公告)号：US10001565B2

公开(公告)日：2018-06-19

申请号：US15391849

申请日：2016-12-28

Applicant: Industrial Technology Research Institute

Inventor： Jing-Shyang Hwu ,  Yung-Cheng Chao ,  Po-Fan Wang ,  Po-Chun Kang

IPC: G01S19/41 ,  G01S19/23

CPC classification number: G01S19/41 ,  G01S19/03 ,  G01S19/235 ,  G01S19/40

Abstract: A positioning system having an onboard positioning device and a roadside device is provided. The onboard positioning device receives a plurality of first positioning signals and records a positioning moving locus of a vehicle according to the first positioning signals. The roadside device detects a real moving locus of the vehicle. The onboard positioning device obtains the real moving locus from the roadside device, and calculates a positioning calibration value according to coordinates of the positioning moving locus and coordinates of the real moving locus. Furthermore, the onboard positioning device receives a plurality of second positioning signals and calculates and outputs a plurality of calibrated positioning coordinates according to the second positioning signals and the positioning calibration value.

公开(公告)号：US20170350986A1

公开(公告)日：2017-12-07

申请号：US15391849

申请日：2016-12-28

Applicant: Industrial Technology Research Institute

Inventor： Jing-Shyang Hwu ,  Yung-Cheng Chao ,  Po-Fan Wang ,  Po-Chun Kang

IPC: G01S19/41 ,  G01S19/23

CPC classification number: G01S19/41 ,  G01S19/03 ,  G01S19/235 ,  G01S19/40

Abstract: A positioning system having an onboard positioning device and a roadside device is provided. The onboard positioning device receives a plurality of first positioning signals and records a positioning moving locus of a vehicle according to the first positioning signals. The roadside device detects a real moving locus of the vehicle. The onboard positioning device obtains the real moving locus from the roadside device, and calculates a positioning calibration value according to coordinates of the positioning moving locus and coordinates of the real moving locus. Furthermore, the onboard positioning device receives a plurality of second positioning signals and calculates and outputs a plurality of calibrated positioning coordinates according to the second positioning signals and the positioning calibration value.