BEIDOU SATELLITE-BASED INITIAL POSITIONING CALCULATION METHOD FOR TRAIN AND POSITIONING SYSTEM

The present invention provides a Beidou satellite-based initial train positioning calculation method, and a positioning system. The initial train positioning calculation method includes the following steps: S1: receiving Beidou satellite signals to acquire Beidou navigation data, and verifying the v...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YANG, Fengwei, AN, Hongfei, CAO, Dening, YANG, Wen, XU, Xianliang, LI, Ziwei, ZHANG, Yazhong
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ENSURING THE SAFETY OF RAILWAY TRAFFIC GUIDING RAILWAY TRAFFIC LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION RAILWAYS TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention provides a Beidou satellite-based initial train positioning calculation method, and a positioning system. The initial train positioning calculation method includes the following steps: S1: receiving Beidou satellite signals to acquire Beidou navigation data, and verifying the validity of the data; S2: acquiring 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, selecting 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. According to the present invention, by utilizing all-weather and real-time characteristics of satellite positioning, the initial position can be calculated in the case of not moving the train after starting, so that the carrying efficiency of vehicles can be improved.