Abstract
The article presents a mathematical model assessing the reliability of rail traffic control systems with a mounted Peltier cell. The semiconductor element will be used for operating electronic components that are in the trackside equipment. In the prepared model, Markow processes were used to describe the states occurring between individual components of the RTC System. Simulation tests were mainly based on determining the average time of component failure. The presented results were carried out for 1,000, 2,000 and 3,000 rail vehicle crossings over the railway tracks equipped with RTC Systems. At the very end of the article the conclusions resulting from computer simulations were presented.
Highlights
The model determining the reliability of the developed Railway Traffic Control RTC System with a Peltier cell is based on data on the maintenance of trackside and signaling equipment, it takes into account all relevant indirect factors, such as atmospheric factors affecting the operation of the RTC System, which are quantitatively related to the probability of a fault occurring in the RTC System [2, 4,5, 9,10]
It was assumed that the number of rail vehicles passing through the tracks is the same for RTC elements with and without a Peltier cell, in specific time intervals it is the same and takes place on the same tracks, which results from the adopted reliability model
Ability of the RTC System to analyze the reliability of the system makes the model intuitively described, at the same time described as the automatic generation of reports on the system's state of operation, which makes the method worth strong mathematical skills
Summary
The model determining the reliability of the developed Railway Traffic Control RTC System with a Peltier cell is based on data on the maintenance of trackside and signaling equipment, it takes into account all relevant indirect factors, such as atmospheric factors affecting the operation of the RTC System (e.g. environment, human error, etc.), which are quantitatively related to the probability of a fault occurring in the RTC System [2, 4,5, 9,10]. Various results can be obtained, but the most important of them is the measurement of the failure rate, availability and ease of maintaining the RTC System operation efficiency does not apply to data collected from subsystems not directly entering the reliability system This provides a multidimensional tool for measuring the repair maintenance process of components included in the RTC System. It will allow enterprises to review their planning processes for the launch of RTC Systems, prepare and maintain them, and will result in remarks to contractors of individual elements of RTC It discusses how various changes in the policy for maintaining the functionality of the RTC System (e.g. preventive inspections, repair procedures for maintaining electronic components of the RTC, identification of defects, etc.) affect the reliability of the systems (e.g. increasing availability and reliability, reducing Travel time reliability - TTR etc.) [15]. LCC analyses can be used to focus on strategies to maintain the correct functionality of the RTC System to minimize maintenance costs over the system's life cycle while meeting reliability requirements
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