Elements of technical realization of a calculation method for initial train positioning based on Beidou satellites

Technical implementation elements:

4. The object of the present invention is to provide a kind of train initial positioning calculation method and positioning system based on the Beidou satellite, in order to overcome the defects existing in the prior art, the use of satellite positioning all-weather, real-time characteristics, does not move after starting the machine. In the scene, the initial position calculation can be started to improve the carrying efficiency of the vehicle.

5. In order to achieve the above object, the present invention realizes through the following technical solutions:

6. A method for calculating initial train positioning based on Beidou satellites, comprising the steps of:

7.s1: Receive Beidou satellite signals to obtain Beidou navigation data;

8.s2: Get the orbit electronic map file;

9.s3: Based on the Beidou navigation data and the track electronic map file, screen out the possible track segments of the current position of the train as candidate track segments, and put each of the candidate track segments into the set tracklist;

10.s4: Determine whether the number of the candidate track segments in the set tracklist is 1;

11.s5: According to the judgment result, choose to execute a single track position comparison algorithm or a non-single track position comparison algorithm.

12. Preferably, step s5 comprises:

13. If the number of candidate track segments in the set tracklist is greater than 1, execute the non-single track position comparison algorithm;

14. If the number of candidate track segments in the set tracklist is equal to 1, then based on the track electronic map file, determine whether there are other parallel track segments in the candidate track segment:

15. Yes, then put each of the parallel track segments into the set tracklist, and execute the non-single track position comparison algorithm;

16. No, execute the single track position comparison algorithm.

Contact Us：

Email: zhang@pride-cnc.com

Tel: +86-755-23699351

Mob: +8618666663894