Dynamic train tracking interval calculation method

Abstract

The invention provides a dynamic train tracking interval calculation method, which comprises the following steps of: establishing a space-time speed network model for each train in a current transportation scene according to basic static data of the train and dynamic data in the transportation scene; marking space-time resources occupied by each network arc in the space-time speed network models of all trains according to a locking time theory; according to the train departure sequence, searching the shortest space-time speed path of each train in the marked space-time speed network model in sequence, and when space-time resources occupied by a network arc are used resources, forbidding selection when the shortest space-time speed path is searched; and after all the trains are painted, obtaining the minimum tracking interval between the trains and a corresponding speed curve according to the searched space-time speed path result. According to the method, the minimum tracking interval between the high-speed railway trains is calculated in any transportation scene, and meanwhile, the feasible recommended speed curve of the minimum tracking interval is obtained through the calculation result.

Description

technical field [0001] The invention relates to the technical field of high-speed railway operation adjustment and driving control, in particular to a dynamic train tracking interval calculation method. Background technique [0002] With the rapid development of high-speed railways, people have put forward further requirements for the improvement of the efficiency and safety of transportation organization. Due to the impact of many unavoidable events in the daily operation of the train, such as external environmental factors or occasional human intervention, the train will encounter different degrees of delay scenarios. According to different transportation scenarios, dispatchers need to make major adjustments to the operation chart, so as to restore the punctual operation status as quickly as possible. At this time, the dispatchers are more concerned about how to release the backlogged traffic in the station in the shortest time under the premise of ensuring safety, and el...

AI Technical Summary

Problems solved by technology

In the past, the departure interval of trains in the station needs to meet the constraints of the station's minimum departure interval time. However, the traditional calculation method of the station's minimum departure interval time is usually the minimum departure interval allowed between any two trains in the station or even on the entire line The maximum value of , which is often limited by manual scheduling jobs, and the method adopted for the convenience of the scheduler's work

In fact, on the one hand, this method produces a large waste of the passing capacity of the line, which is not conducive to the rapid release of the backlog of traffic; on the other hand, if the dispatcher is required to calculate the minimum tracking interval between trains in different transportation scenarios in real time , will bring a huge workload to the dispatcher, and cannot meet the timeliness requirements of dispatch adjustment

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