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An Optimal Method for Equipment Maintenance Strategy Based on Station Capacity Maintenance

A maintenance strategy and station technology, applied in design optimization/simulation, data processing application, prediction, etc., can solve problems such as not maintaining equipment reliability well, restricting station traffic capacity, and different failure rates

Active Publication Date: 2020-10-27
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The maintenance cycle of key station equipment in the prior art is determined based on historical experience, not on the basis of quantitative analysis of the impact of equipment reliability on station capacity. The current equipment maintenance strategy cannot well maintain equipment reliability. The equipment is often repaired when it breaks down, which greatly restricts the traffic capacity of the station
On the other hand, at present, the maintenance of the key equipment of the station is implemented for the whole equipment, but the failure rate of different parts of the equipment is different, the overall maintenance lacks pertinence, and the maintenance cost is too high

Method used

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  • An Optimal Method for Equipment Maintenance Strategy Based on Station Capacity Maintenance
  • An Optimal Method for Equipment Maintenance Strategy Based on Station Capacity Maintenance
  • An Optimal Method for Equipment Maintenance Strategy Based on Station Capacity Maintenance

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Embodiment 1

[0053] Definition of subway station capacity and evaluation indicators:

[0054] figure 1 It is a schematic diagram of the process of collecting and distributing passengers at a subway station, refer to figure 1 , the process of collecting and distributing passengers at a subway station can be divided into three sub-processes: passengers entering the station, passengers getting on and off, and passengers leaving the station. As the current subway security check has been normalized, the process of passengers entering the station is to buy tickets for passengers, pass through security checks and gates, arrive at the station hall, and then pass through the stairs or escalators to the platform. Passengers with one-card cards do not need to purchase tickets. ; Passenger exit process refers to the whole process of passengers going from the platform to the station hall through stairs or escalators, and exits through gates; passenger boarding process refers to the whole process of pa...

Embodiment 2

[0189] This embodiment provides an equipment maintenance strategy optimization method based on station capacity maintenance for a subway station in Beijing, including the following steps:

[0190] Step 1. Simulation model of station passenger flow based on Anylogic

[0191] (1) Research on suspension system structure

[0192] First of all, conduct field research on the station, obtain the station layout and passenger flow data, and draw out the flow lines of passengers entering and leaving the station. Figure 5 It is a schematic diagram of pedestrian flow in and out of a subway station.

[0193] The passenger flow simulation model based on Anylogic includes two parts: station environment modeling and pedestrian behavior modeling.

[0194] The modeling of the station environment is to draw out the building structures of the station hall level and the platform level, such as walls, columns, obstacles, etc., and then add various service facilities such as gates, escalators, et...

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Abstract

The invention provides an equipment maintenance strategy optimization method based on station capability maintenance, which comprises the following steps: establishing a passenger flow simulation model of a station based on Anylogic, and counting the failure rate of each part of equipment of the station; according to the simulation model, calculating the expected capacity of the station, carryingout sensitivity analysis of the expected capacity of the station, and obtaining reliability constraint values of different equipment faults of the station; carrying out distribution function fitting on the failure rate of each part of each device in the station to obtain an optimal distribution parameter, and further obtaining a reliability function and a failure probability density function of each part in each device; and calculating the optimal maintenance period of each part in each device through a maintenance period optimization model. On the premise of guaranteeing the reliability of the key equipment of the station, the maintenance periods of different parts of the equipment are determined with the equipment maintenance cost minimization as the target, the reliability of the key equipment of the station is improved, the station capacity is kept, and the equipment maintenance efficiency and economic benefits are improved.

Description

technical field [0001] The invention relates to the field of subway station equipment maintenance, in particular to an equipment maintenance strategy optimization method based on station capacity maintenance. Background technique [0002] Urban rail transit has become an important mode of transportation in many cities due to its advantages of large transportation capacity, safety and punctuality. Metro stations are important nodes in the urban rail transit network, where passengers board, drop off and wait for trains. Turnstiles and escalators are important electromechanical equipment in subway stations. Among them, turnstiles are important equipment for managing passengers entering and leaving the station, and escalators are important equipment for transporting passengers between the platform and the station hall. Under complex passenger flow environment conditions, gates and escalators will fail during the process of being put into use, and the passing capacity of the equi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/00G06Q50/30G06F30/20
Inventor 魏秀琨李赛贾利民张蜇李海玉尹贤贤孟鸿飞赵利瑞江思阳杨子明
Owner BEIJING JIAOTONG UNIV