Simulation control method, device and equipment of rail transit digital system and medium

By dividing the subsystems of the rail transit system into different groups according to their synchronization and dynamic characteristics, and adopting differentiated step size control, the time synchronization and efficiency problems in multi-subsystem collaborative simulation are solved, and efficient and accurate simulation results are achieved.

CN122242029APending Publication Date: 2026-06-19NAT HIGH SPEED TRAIN QINGDAO TECH INNOVATION CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT HIGH SPEED TRAIN QINGDAO TECH INNOVATION CENT
Filing Date
2026-03-24
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

In the collaborative simulation of multiple subsystems in rail transit systems, it is difficult to simultaneously guarantee time synchronization, simulation efficiency, and accuracy. Existing technologies suffer from resource waste or insufficient accuracy.

⚗Method used

The rail transit system is divided into different groups of subsystems and a differentiated step size control strategy is adopted: the subsystem with high synchronization requirements adopts a fixed global reference step size, while the subsystem with high dynamic characteristic change rate is based on the dynamic characteristic prediction step size to ensure time synchronization and optimize simulation efficiency.

🎯Benefits of technology

It achieves a balance between time synchronization and simulation efficiency in multi-subsystem collaborative simulation, improves simulation accuracy, stability and execution efficiency, and avoids data transmission delay and timing disorder.

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Abstract

This application discloses a simulation control method, apparatus, equipment, and medium for a rail transit digital system. The method includes: dividing multiple subsystems into at least one first subsystem group and one second subsystem group based on the time synchronization requirement level and dynamic characteristic change rate of each subsystem in the rail transit digital system; wherein the time synchronization requirement level of each subsystem in the first subsystem group is higher than a first threshold, and the dynamic characteristic change rate of each subsystem in the second subsystem group is higher than a second threshold; performing simulation calculations on each subsystem in the first subsystem group using a fixed global reference step size; predicting the time step size for the next cycle based on the dynamic characteristics of each subsystem in the second subsystem group, and performing simulation calculations on the predicted time step size in the next cycle. This application ensures both time synchronization and simulation efficiency and accuracy in multi-subsystem collaborative simulation.
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