Virtual marshalling train control method and device based on time reference and storage medium

Abstract

The invention provides a virtual marshalling train control method and device based on a time reference and a storage medium. The method comprises the steps that a main end train generates a first protection curve according to the position of a front vehicle; the main end train runs based on the first protection curve, and meanwhile, a first instruction curve is generated based on the first protection curve; and the master-end train transmits the first instruction curve to the last group of slave-end trains through the slave-end trains in sequence, and each group of slave-end trains executes the first instruction curve according to the time reference after receiving the first instruction curve. According to the method provided by the invention, after the master-end train generates the first protection curve according to the position of the front vehicle, the first protection curve is sequentially sent through the follow-up slave-end trains, so that all the trains can synchronize the protection curve, the consistency of control instructions is ensured, and the slave-instruction control end realizes the operation synchronism of marshalling trains.

Description

technical field [0001] The present application relates to the technical field of rail transit, and in particular to a method, device and storage medium for controlling a virtual train formation based on a time reference. Background technique [0002] With the rapid expansion of the scale of urban subway traffic and the demand for future intelligent development, higher demands are put forward for the flexible marshalling and intelligent reconnection of vehicles, that is, the application of vehicle virtual marshalling technology is getting louder and louder. [0003] Traditional subway vehicles are generally in the form of fixed marshalling. According to the passenger flow at different times, the vehicle can be reconnected or unmarshaled through the coupler to meet different passenger flow needs. The traditional double train can transmit the longitudinal force between the double train through the coupler, so that the train can maintain the same speed, and at the same time, the...

AI Technical Summary

Problems solved by technology

While the vehicle is running in a tunnel or underground line, the accuracy of the positioning equipment will decrease to a certain extent, and the position of the vehicle can only be accurately confirmed through ground positioning; when the vehicle is running on a curved track, the radar system of the vehicle itself may not be detected Front and rear vehicles, or lack of radar data collection, will also lead to a decrease in vehicle positioning accuracy, thereby affecting the operational efficiency of virtual marshalling vehicles

[0007] At the same time, the existing method puts more emphasis on the consistency of the operating conditions of all trains in the formation, that is, synchronously in traction, coasting or braking conditions, while for existing lines It is said that when multiple trains are in the traction condition at the same time, the instantaneous current may be too large, and the current capacity of the existing line is not enough; while in the braking condition at the same time, the regenerative current generated by the vehicle may also exceed the current capacity of the line. It can only make the vehicle apply the air brake, causing a certain amount of waste

[0008] In order to ensure a fixed relative distance or relative speed for the trains in formation, the control instructions of each train may be inconsistent, and the operation synchronization of the formation trains cannot be realized from the command control terminal

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