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Urban rail train operation simulation method for emergency scene

A technology for emergencies and urban rail trains, applied in design optimization/simulation, instruments, data processing applications, etc. Issues such as special handling of incident scenarios

Pending Publication Date: 2021-04-20
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current urban rail system train simulation lacks special handling for emergency scenarios, and the application scenarios cannot meet the needs of actual operations
The simulation organization method based on discrete time is also not suitable for large-scale wire network simulation due to computational efficiency issues

Method used

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  • Urban rail train operation simulation method for emergency scene
  • Urban rail train operation simulation method for emergency scene
  • Urban rail train operation simulation method for emergency scene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The processing flow of an urban rail train operation simulation method for an emergency scene provided by an embodiment of the present invention is as follows: figure 1 As shown, the following processing steps are included:

[0058] Step 1, define the event type of urban rail train operation simulation;

[0059] The urban rail train simulation based on the discrete event organization method first needs to define a series of events, and discretize the operation process of the urban rail system into a set of events. For example, the urban rail system can be decomposed into four types of events: train departure, arrival, departure, and train receipt under normal circumstances; and when considering emergency scenarios, it is necessary to add two additional events: train emergency braking and restarting. class events; the simulation method itself requires a simulation start event and a simulation end event.

[0060] Step 2, define the simulation behavior of each element in...

Embodiment 2

[0090] The invention provides an organization calculation method for urban rail train operation simulation aimed at emergency scenarios.

[0091] For a line: a two-way urban rail line, the terminal station is set up and then the turnaround section, each direction contains 14 stations and 13 sections. The mass of the train is 311800kg, the maximum traction force is 249440N, and the maximum braking force is 243204N. The departure interval of the train is 180 seconds, and 23 trains depart. The emergency occurs at 4625 simulation seconds and lasts for 400 seconds. See Table 1 and Table 2 for the running time of each section. The stop time at each station is 20 seconds.

[0092]Table 1 Planned running time of each section in the uplink direction

[0093]

[0094]

[0095] Table 2 Planned running time of each section in the downlink direction

[0096]

[0097] Steps 1 to 3 are now complete.

[0098] Step 4, calculate the train speed curve;

[0099] according to figure ...

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Abstract

The invention provides an urban rail train operation simulation method for an emergency scene. The method comprises the steps that event types of urban rail train operation simulation are defined, simulation behaviors of all elements in the urban rail train operation simulation are defined, and simulation parameters of the train operation simulation are set according to actual use scenes of train operation. And event-driven train operation simulation is organized according to the event type, the simulation behavior and the simulation parameter of the train operation simulation in an emergency scene, parallel simulation calculation is performed, a train speed curve is calculated, and a train actual operation time table is output. According to the urban rail train simulation organization method based on the discrete events, train operation conditions and passenger delay indexes under different emergency scenes can be obtained more efficiently and accurately.

Description

technical field [0001] The invention relates to the technical field of urban rail train operation control, in particular to an urban rail train operation simulation method for emergency scenarios. Background technique [0002] Urban rail transit has the characteristics of large capacity, high punctuality, and environmental friendliness, and plays the role of the backbone of urban public transportation. With the rapid growth of passenger traffic and the narrowing of the departure interval, the operation organization of the urban rail system is becoming more and more complex, and uncertain emergencies occur frequently, which leads to train delays, affects driving safety, and reduces the service quality and operational efficiency of the urban rail system . Therefore, it is of great significance to evaluate the emergency in advance and analyze the possible interference to train operation, passenger delay and service level loss, which can provide the data basis for the operating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q50/26
Inventor 杨欣黎阳孙会君尹浩东屈云超吴建军
Owner BEIJING JIAOTONG UNIV