Research and design of data communication subsystem of urban rail transit CBTC system

Abstract

With the intensive development of urban rail transit in China, urban rail transit has increasingly become the preferred mode of transportation for citizens due to its convenience and speed. The design and construction of an efficient and highly reliable urban rail transit system has become an urgent requirement for urban rail transit construction. This article mainly introduces the research and design of the data communication subsystem of the urban rail transit CBTC system, and intends to provide some ideas and directions for studying the data communication subsystem of the urban rail transit CBTC system. This article uses a variety of methods, such as consulting literature and information research on trademark system suppliers. The development status of CBTC system and data communication subsystem is analyzed, and the importance of data communication subsystem and the necessity of the entire CBTC system are analyzed. The experimental results of this article show that in the design, development and application engineering of the CBTC system, the DCS subsystem accounts for 55%, the system is complex, and the environment is changeable, occupying an important position. When the DCS has a problem, it may cause drive failure, affect normal functions, cause greater losses, and even cause huge safety accidents. Therefore, the reasonable, reliable and safe design of the DCS subsystem is of great significance.

Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling

“…Radio wave propagation in tunnels has been extensively studied over decades [1][2][3][4][5][6]. With the emergence of new wireless communication systems such as communication-based traincontrol (CBTC) systems and 5G/6G wireless systems [7][8][9], there has been an increasing interest in radio wave propagation studies, as the development and deployment of those emerging systems rely on the prior knowledge of the propagation characteristics in the given railway environment. Since the current railway transportation networks extend over hundreds of kilometers, obtaining a propagation model based on extensive measurement campaigns is resource-intensive.…”

Modeling of Reliability and Availability of Data Transmission in Railway System

“…We are witnessing today that there is on the one hand a continuous increase in speed and specific traffic requirements [10], while on the other hand they are required to operate the control system reliably in railway systems, because in the case that the system fails, the loss of human lives and transported goods is inevitable [11]. In that context, modern railway systems must sutisfy the needs of passengers, be efficient and secure [12] and have as small energy consumption as possible [13].…”

A Model for Planning Wagonload Freight Transport Under Relative Uncertainty

“…A statistical deterministic model has limited application because the execution of rail transport activities may differ from previously adopted assumptions. Moreover, models of optimal wagon flow management with exact parameter values may turn out to be highly "approximate", because very often the data are not the parameters themselves but sets of possible parameter values [32]. For this reason, it is more practical to look for optimal decisions by assigning possible values rather than specific numbers to parameters.…”