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Data Static Analysis Technology and Its Application in Safety Software Testing
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Sun Zhike
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2021 Vol. 18 (5):
9-14,32.
DOI:10.3969/j.issn.1673-4440.2021.05.002
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Abstract (
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For the safety software running in the train operation control system, its safety is guaranteed by both software code and configuration data. However, the common error patterns of configuration data, especially redundant data, cannot be detected comprehensively and quickly by simply relying on traditional black box testing technology. This paper introduces the feasibility of introducing static analysis technology of white box testing technology for software code into data testing, and the typical application scenarios of static analysis technology in safety software data testing, and analyzes the advantages and disadvantages of this technology.
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Application of BIM Technology in Operation and Maintenance of Railway Signal Engineering
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Zhang Kai, Song Shenglin, Xiao Yanke
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2021 Vol. 18 (5):
15-21.
DOI:10.3969/j.issn.1673-4440.2021.05.003
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Abstract (
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In order to better promote the speed of informatization development of railway engineering construction, the traditional management model needs to be changed. This paper aims to study the platform of railway signal operation and maintenance management, which is constructed by the BIM technology, through the view of data information provided by platform synchronization, sharing of device, 3D visualization browsing, device ledger, device history, device failure, historical maintenance and other static attributes and dynamic data information, realizes the integration and visualization of railway signal engineering device data, and makes judgments, warnings and guidance on railway signal devices maintenance work.
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Discussion on Application Prospect of Train Control and Interlocking Integrated Equipment
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Zhang Biyan
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2021 Vol. 18 (5):
22-27.
DOI:10.3969/j.issn.1673-4440.2021.05.004
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Abstract (
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This paper summarizes the development history of interlocking system and train control center system in China. Based on the experience of high-speed railway development, it analyzes the application status and problems of individually configuration of train control center equipment and interlocking equipment in Chinese Train Control System (CTCS) in China. Combined with the latest development direction of technology, this paper also discusses the application prospect and advantage of full electronic train control and interlocking integrated equipment in future engineering.
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Design of Locomotive Dispatching System for Shuohuang Railway
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Shen Xiaoyu
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2021 Vol. 18 (5):
28-32.
DOI:10.3969/j.issn.1673-4440.2021.05.005
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Abstract (
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The Shuohuang Railway is owned by the National Energy Group for coal transportation from the coal producer to the port. It is an important heavy haul railway characterized by huge capacity and long distance. As a power guarantee, the locomotive dispatching plays a key role in keeping the transportation efficiency and safety of this railway. The current Locomotive Dispatching System has many problems, such as a wide variety of equipment, incomplete functions and non-share information, which affect the transportation organization and operation. Locomotive Dispatching System is a locomotive dispatching information platform, which is tailored for the Shuohuang Railway according to its own characteristics. The system adopts a two-tier architecture based on the center and the depot. Besides, it builds a unified information platform to replace the existing data platforms. In this way, the system can balance the use of all locomotives from different combined transport units in its jurisdiction, optimize the locomotive management process of Shuohuang Railway, improve the locomotive utilization and guarantee the efficient completion of all transportation operations.
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Data Implementation and Analysis of Centralized Signaling Monitoring Accessing Train Control Section Logic Check Function
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Zhai A'nan
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2021 Vol. 18 (5):
33-36.
DOI:10.3969/j.issn.1673-4440.2021.05.006
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Abstract (
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With the improvement of the requirements of the safety operation of railway trains, the train control center equipment has been added with section logic check function, and the centralized signaling monitoring system also synchronously needs to have the monitoring function of the train control center to section logic check function. In order to realize the graphical synchronous display of the states such as train normal occupancy, fault occupancy and loss of shunting in the train control center, the monitoring objects need to be datamation. This paper focuses on the analysis of data implementation of centralized signaling monitoring system to train control section logic check function.
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Design and Implementation of Process Control System at Intermediate Station of Conventional Speed Railway
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Xu Ming, Hu Yichen
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2021 Vol. 18 (5):
37-41.
DOI:10.3969/j.issn.1673-4440.2021.05.007
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Abstract (
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In order to solve the problem of insufficient efficiency and quality in handling passenger and train operations at conventional speed railway intermediate stations, This paper proposes to construct a process control system suitable for conventional speed railway intermediate stations. It is planned to integrate work flows with train plans as the core to build station information system including lightweight passenger service, auxiliary protection of train route error and electronic busy board to realize the management of "daily form" at the intermediate station. The practical results show that the system can effectively improve the efficiency and quality of the comprehensive operations at intermediate stations, and has great potential for promotion.
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Research on Wireless Communication Scheme of Train Control System Compatible with 5G-R and GSM-R Interoperability
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Wang Jianmin
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2021 Vol. 18 (5):
42-46,99.
DOI:10.3969/j.issn.1673-4440.2021.05.008
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Abstract (
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CTCS-3 train control system transmits train-trackside data through GSM-R wireless communication to ensure safe and efficient operation of trains. Due to the limited service carrying capacity of GSM-R network, in order to adapt to the future development of high-speed railway and be compatible with the existing train control system, it is necessary to study system solutions compatible with 5G-R network with stronger service carrying capacity and the existing GSM-R network. In this paper, a train control system wireless communication solution based on compatible with 5G-R and GSM-R interoperability is proposed, and the layered structure, transmission structure and data transmission scheme of dual-network integration are introduced, and a typical application scenario of dual-network handover is illustrated.
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Solution Design and Optimization of GSM-R System for Shared Section of Hefei-Hangzhou High-speed Railway and Existing Line
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Zhang Jian, Yu Changyi, Wang Weili
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2021 Vol. 18 (5):
47-53,87.
DOI:10.3969/j.issn.1673-4440.2021.05.009
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Abstract (
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This paper introduces the general situation of the newly-built main line, connecting line, highway and railway bridge which shared section with the existing line of Hefei-Hangzhou high-speed railway. It also proposes the key points and difficulties in the design of Hefei-Hangzhou high-speed railway. Then, by choosing three typical shared sections, including Hehang high-speed railway, the existing Xuanhang railway, the existing Hefu high-speed railway and Yangtze River highway and railway bridge connecting Wuhu hub, this paper proposes the specific wireless design solution to solve the problems in GSM-R system design and optimization, such as difficult frequency point planning, inconsistent construction period and poor quality caused by wireless interference, and the solution has been well proved in the integration test and commissioning. In the end of this paper, the experiences of this project and the suggestions for the solution design of similar railway section are summarized.
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Research on GSM-R Coverage Scheme of Nantong Hub
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Ge Weitao
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2021 Vol. 18 (5):
54-58.
DOI:10.3969/j.issn.1673-4440.2021.05.010
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Abstract (
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The railway within Nantong regional hub includes the already operated Ningqi railway, Shanghai-Suzhou-Nantong railway, Zhaodian connecting line, the soon-to-be built Yantong high-speed railway and Chenqiao connecting line. In order to meet the coverage requirements of each line in the hub region, the GSM-R system in the hub region should be designed as a whole. The GSM-R coverage scheme of Nantong hub is studied in this paper, and the final implementation scheme of the project is put forward, which can be used for reference by other projects.
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Prediction for Fault-free Operation Time of AFC Terminal Equipment Based on Survival Analysis
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Li Bo, Zhang Bingsen, Zhang Ning
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2021 Vol. 18 (5):
59-65.
DOI:10.3969/j.issn.1673-4440.2021.05.011
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Abstract (
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In order to improve the maintenance management level of AFC terminal equipment, a prediction method of fault free operation time based on accelerated failure model is proposed. This paper analyzes the influence of human, environment and equipment condition characteristics on equipment failure, and constructs a risk-based prediction model of fault free operation time based on the theory of survival analysis. The AFC equipment fault data of Youfangqiao station of Nanjing subway for one year is used to estimate and verify the mechanical fault. According to the Chi Chi information criterion, Weibull distribution is selected to establish the prediction model of fault free operation time, and the mean absolute percentage error (MAPE) is used as the performance evaluation index of the model. The results show that the method has excellent prediction performance, and has obvious advantages over the method based on regression analysis. The research results can provide valuable reference for equipment maintenance management.
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Technical Transformation of Automatic Fare Collection System for Beijing Metro
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ChenNan, Li Yu, Li Aiqi, Meng Fanchen, Zhang Zheng, Zhang Donghui
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2021 Vol. 18 (5):
77-82,94.
DOI:10.3969/j.issn.1673-4440.2021.05.014
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Beijing Metro network operation pattern has been formed and has entered the stage of renovation and transformation. In order to meet the needs of renovation and flexible adjustment of business functions, Beijing Metro AFC system has begun to explore technical transformation, including software upgrading, hardware transformation, unifying AFC system standards, and improving business rules system, so as to make the AFC system of the whole network have the function of flexible implementation of business rules, eliminate dependence on manufacturers, and reduce the cost of system transformation.
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Research on Design Scheme of Dispatching Communication in Special Area of East Ring Line of Chongqing Railway Hub
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Zhao Sheng
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2021 Vol. 18 (5):
88-94.
DOI:10.3969/j.issn.1673-4440.2021.05.016
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Abstract (
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The special area of the railway hub has complex line conditions, coexistence of multiple technical systems and diverse business needs. The dispatching communication design needs to consider the impact of various factors. Through detailed analysis of the dispatching communication needs of special areas such as Chongqing East Railway Station and Miaoba Railway Station on the East ring line of Chongqing railway hub, various special service requirements are summarized. According to the technical principles of each system, combined with the actual situation of the project, this paper proposes a targeted design scheme to satisfy the needs of railway transportation dispatching and commanding well, and has important reference significance for the design of dispatching communication in special areas of other hubs.
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Application of ATP for CBTC Urban Rail Transit Engineering Vehicle
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Huang Pu, Huang Hairong
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2021 Vol. 18 (5):
100-104.
DOI:10.3969/j.issn.1673-4440.2021.05.018
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Abstract (
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According to the feasibility study of engineering vehicles equipped with Automatic Train Protection (ATP) system in urban rail transit, this paper puts forward an ATP system architecture for engineering vehicles and proposes the best selection scheme and driving mode scheme in combination with the characteristics of engineering vehicles, which provides references for the realization of engineering vehicles equipped with ATP equipment in urban rail transit.
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Analysis and Disposal of Typical Power-line Interference of ZPW-2000 Jointless Track Circuit
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Li Zongwu
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2021 Vol. 18 (5):
105-108.
DOI:10.3969/j.issn.1673-4440.2021.05.019
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Abstract (
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ZPW-2000 track circuit is the main signaling equipment of high-speed railway. At present, according to the application environment of high-speed railway track circuit, the equipment needs to solve the harmonic interference caused by the increase of power frequency traction power supply current while reliably realizing the occupation detection of 350 km/h high-speed train. Starting from two typical cases, this paper analyzes the track circuit interference problems through the equipment itself, joint parts, change points and other troubleshooting methods, and summarizes the troubleshooting methods and ideas of interference problems caused by subgrade ballast and traction power supply cable.
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月刊
Monthly
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第21卷 第6期 总第期
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Vol.21 No.6 S.No.
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出版：
2024-06-24
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Published on:
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创刊：2004 年
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First Issue: 2004
