The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2026
Filed:
Nov. 10, 2022
Casco Signal Ltd., Shanghai, CN;
Xianliang Xu, Shanghai, CN;
Ziwei Li, Shanghai, CN;
Yazhong Zhang, Shanghai, CN;
Fengwei Yang, Shanghai, CN;
Hongfei An, Shanghai, CN;
Wen Yang, Shanghai, CN;
Dening Cao, Shanghai, CN;
CASCO SIGNAL LTD., Shanghai, CN;
Abstract
The present disclosure provides a Beidou satellite-based initial train positioning calculation method, and a positioning system. The initial train positioning calculation method includes the following operations: S1: receiving Beidou satellite signals to obtain Beidou navigation data, and verifying the validity of the data; S2: obtaining a track electronic map file, and verifying the validity of the file; S3: based on the Beidou navigation data and the track electronic map file, screening out possible track sections of the current position of the train as candidate track sections, and putting the candidate track sections into a set TrackList; S4: determining whether the number of the candidate track sections in the TrackList is 1; and S5: according to the determination result, selecting to execute a single track position comparison algorithm or a non-single track position comparison algorithm.