US 11,993,298 B2
Moving block train operation control method and system based on train autonomous positioning
Yajing Zhang, Shanghai (CN); Qingbiao Xu, Shanghai (CN); Xianliang Xu, Shanghai (CN); Tao Wang, Shanghai (CN); Zhixin Chen, Shanghai (CN); Jiqing Na, Shanghai (CN); and Liang Guo, Shanghai (CN)
Assigned to CASCO SIGNAL LTD., Shanghai (CN)
Appl. No. 17/596,092
Filed by CASCO SIGNAL LTD., Shanghai (CN)
PCT Filed Oct. 19, 2020, PCT No. PCT/CN2020/121782
§ 371(c)(1), (2) Date Dec. 2, 2021,
PCT Pub. No. WO2021/143238, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 202010043715.0 (CN), filed on Jan. 15, 2020.
Prior Publication US 2022/0315072 A1, Oct. 6, 2022
Int. Cl. B61L 25/02 (2006.01); B61L 25/04 (2006.01)
CPC B61L 25/021 (2013.01) [B61L 25/025 (2013.01); B61L 25/04 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A moving block train operation control method based on train autonomous positioning, the method comprising:
a train-mounted device autonomously positioning a train and performing train integrity checking via satellites;
determining a real-time position, speed, and line state of a preceding train via a train-to-train communication; and
dynamically determining a movement authority and a target distance based on the real-time position, speed, and line state of the preceding train according to a train safety protection mechanism,
wherein a control process of the moving block includes:
step (1): determining a position of the train on a line, wherein the position comprises a train maximum safety head and a train minimum safety tail;
step (2): obtaining, by the train-mounted device, an IP of the preceding train via a center resource management system;
step (3): establishing, by the train-mounted device, wireless communication with the preceding train, and obtaining a position and a speed of the preceding train in real time:
step (4): obtaining, by the train-mounted device, an available length of track resource and a point position ahead from the center resource management system;
step (5): determining, by the train-mounted device, the movement authority; and
step (6): dynamically monitoring, by the train-mounted device, train operation in real time according to the movement authority, a maximum restricted speed profile, and baking performance of a train, and controlling the train with moving block tracking operation of a train control system.