A method and system for analyzing and early warning of railway rail breakage faults

Abstract

The invention discloses a method and system for analyzing and early warning of railway rail fracture faults. The method includes the following steps: divide the railway line according to a set length scalar to obtain a plurality of unit grids, and define the components and events of each unit grid. Describe the state data of the whole life cycle of rails and events; collect and integrate the state data of the whole life cycle of rails in each unit grid; establish the state deterioration Mark of each unit grid according to the state data of the whole life cycle of rails in each unit grid Markov stochastic process model; based on the above-mentioned Markov stochastic process model of each unit grid, calculate the rail fracture probability of each grid within a rail state detection cycle in the future, divide the rail fracture probability into different thresholds, and perform early warning of rail fracture faults. The technical scheme of the invention simplifies the calculation scale of the analysis and early warning of rail breakage faults, improves the calculation accuracy at the same time, and can analyze the specific position and time of the early warning rail breakage faults.

Description

technical field [0001] The invention relates to the field of railway safety. More specifically, it relates to a method and system for analyzing and early warning of railway rail breakage faults. Background technique [0002] Rail breakage is one of the main factors restricting the safety and punctuality of railway traffic. On the one hand, broken rails affect the normal running of the line and cause train delays. On the other hand, it will bring the danger of derailment and overturning of trains. [0003] The fracture of railway rails is affected by comprehensive factors such as design, construction, operation, and natural environment, such as design factors such as line design and stress design of seamless lines, manufacturing and construction factors such as rail materials, laying conditions, and welding processes, and trains passing through during operation. Operating conditions such as gross weight, locomotive axle load, traffic density, train marshalling, train startin...

AI Technical Summary

Problems solved by technology

The difficulty of using the factor analysis method to analyze the fracture of railway rails is that there are too many factors to describe the fracture of rails, and many factors are difficult to quantify, resulting in too large a matrix of factor variables, difficult data collection, complex calculations and inability to exhaust all factors, and the analysis effect is great discount

[0007] Statistical law modeling generally counts the rail breakage data within the jurisdiction of a railway bureau or a public works section across the country, establishes a prediction model, and predicts the trend of the number of rail breakages. This method is difficult to determine the specific location and time of rail breakage

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