{"title":"Safer Rail Operations: Reactive to Proactive Maintenance Using State-of-the-Art Automated In-service Vehicle-Track Condition Monitoring","authors":"R. Ravitharan","doi":"10.1109/ICIRT.2018.8641587","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641587","url":null,"abstract":"The railway operators are demanding higher productivity and throughput to meet increasing patronage and changing needs. These coupled with shrinking maintenance windows and tightening of available asset repair budgets necessitate responsive strategies to ensure continued safe operations, service reliability whilst at the same time looking at ways to create greater efficiencies.Increasingly, technology and system approaches are being utilised by leading railway organizations to overcome these challenges and to improve their operations. The Instrumented Revenue Vehicle (IRV) Technology and associated sophisticated automatic data processing system are key technological innovations providing significant benefit to these railway organizations. The IRV is an intelligent automated condition monitoring tool which is integrated into normal railway operations. IRV automatically collects dynamic vehicle performance data and identifies high risk track related defects, and the precise locations of the defects, capable of sending remote data that can be analysed in real time. This paper outlines the IRV technology, and how the shift from reactive to proactive maintenance and operation using new technological innovations, are providing significant benefits to the railway industry. Through the integration of the IRV intelligent, automated condition-monitoring tool, into normal everyday operations, the railway industry has an opportunity to create greater efficiencies, reduce maintenance costs, and to ensure safer operations, whilst at the same time extending asset life.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115635636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kuruppulage Asela Buddhika Pathirathna, Rathnayake Mudiyanselage Dhanushka, M. Rathnayake, Warnakulasooriya Hathanguruge, G. Fernando
{"title":"Use of thermal imaging technology for locomotive maintenance in Sri Lanka Railways","authors":"Kuruppulage Asela Buddhika Pathirathna, Rathnayake Mudiyanselage Dhanushka, M. Rathnayake, Warnakulasooriya Hathanguruge, G. Fernando","doi":"10.1109/ICIRT.2018.8641623","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641623","url":null,"abstract":"Predictive maintenance is one of the most important maintenance practice which can be used for locomotive maintenance purposes. Proper predictive maintenance procedures lead to reduce the downtime of locomotives, breakdown maintenance and train delays due to technical reasons. Predictive maintenance utilizes Non Destructive Testing (NDT) techniques such as Thermal imaging technology, Vibration analysis and Oil analysis. Sri Lanka Railway uses above technologies for locomotive maintenance purposes to a certain extent at present. From the beginning of 2016 the thermal imaging technology was introduced as a pilot project in one of the locomotive depot. During the last 24 months of the pilot project, it was able to identify several areas, where the thermal imaging technology can be successfully used for maintenance of locomotives. This paper tries to elaborate on the areas identified and how the thermal imaging technology is used as predictive maintenance practice in maintenance of locomotives in Sri Lanka Railways.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123125190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Self-supervised Railway Pantograph Image Component Retrieval with Geometry Prior","authors":"Peng Tang, Wei-dong Jin","doi":"10.1109/ICIRT.2018.8641601","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641601","url":null,"abstract":"The pantographs are important infrastructures in the railway traction power supply, therefore, whose serving status are frequently monitored, in order to detect any faults or anomaly as early as possible. To visually understand the inspection images, the pantograph pixels should be grouped with markings to indicate specific components. In this paper, a novel unsupervised image component retrieval method is proposed for pantograph visual inspection. To fully utilized the prior knowledge of the interested artificial objects, predefined 3D models are used to estimate latent geometric pose parameters, so as to assist the retrieval of the specified component. Particular deep Q-network based reinforcement learning is designed and trained with the help of an environmental simulator to interactively search optima in high-dimensional parameter space with a global envision. Experiments on the synthesis and real datasets proved the effectiveness of the proposed method in pantograph monitoring.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127464935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoqiong He, Haijun Ren, Pengcheng Han, Yang Chen, Zeliang Shu, Xiaoqiong He
{"title":"Open Circuit Fault Diagnosis of Advanced Cophase Traction Power Supply System Based on Neural Network","authors":"Xiaoqiong He, Haijun Ren, Pengcheng Han, Yang Chen, Zeliang Shu, Xiaoqiong He","doi":"10.1109/ICIRT.2018.8641605","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641605","url":null,"abstract":"Lots of power switch are used in advanced cophase traction power supply system, the open fault of power switch are bad for the reliability of the power supply system. Due to the variety of power switch and their non-linear characteristics, it is difficult to establish a mathematical model of the system to diagnose the open faults. This paper presents a fault diagnosis method based on Back propagation (BP) neural network. Firstly, the mechanism that the output level of the cascaded system will change when an open circuit fault occurs is analyzed. Then, According to the modulation strategy, the variation law of the harmonic of output voltage is analyzed, when the open-circuit fault occurs within the module or between modules. The feature quantities of all faults is extracted as training samples, with the trained three-layer neural network structure, the open circuit fault of the system can be diagnosed in real time. The simulation result shows that neural network fault diagnosis method can accurately and reliably diagnose the open fault of the power switch within 0. 02s without adding additional sensor.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124839053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Vehicle Scheduling with Multiple Trips and Time Windows and Long Planning Horizon","authors":"Shudong Liu, Xiaoli Li, Shili Xiang","doi":"10.1109/ICIRT.2018.8641584","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641584","url":null,"abstract":"We consider scheduling a vehicle/mobile robot in intelligent material transportation systems with multiple trips, time windows and long planning horizon. We propose a novel approach for the scheduling problem which consists of two parts: a) a framework for splitting the long planning horizon problem into many problems with short planning horizons; b) a fast algorithm for scheduling with short planning horizons based on a flexible and effective two-index mixed integer programming (MIP) model. Numerical results show our algorithm can get optimal solutions in seconds/minutes for the short planning horizon problems for which existing three-index MIP model in literature needs hours or cannot obtain optimal solutions after six hours. For long planning horizon problems, our method is also fast and has good scalability, and can significantly reduce cost compared with the Genetic Algorithm in the literature.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125179088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research on Optimal Utilization Model and Algorithm of Urban Rail Transit Rolling Stock","authors":"Wenrong Wang, Y. Yue, Mingxin Li","doi":"10.1109/ICIRT.2018.8641620","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641620","url":null,"abstract":"In recent years, the rapidly development of urban rail transit (URT) in many metropolises of China makes the increasing demand for rolling stock resources. Therefore, optimizing rolling stock scheduling plan and increasing rolling stock utilization efficiency are not only the key to optimize the distribution of transport resources, but also an important part of improving the urban rail transit service level. This paper summarizes the principles of rolling stock scheduling plan, modeling this problem into a multi-depot vehicle routing problem (MDVRP). Considering the connection condition and biweekly maintenance of URT rolling stock in China, a new rolling stock scheduling optimization model with the goal of minimum connection time and maintenance cost was established. Then a solution algorithm was designed based on the Maximum and Minimum Ant System (MMAS). Taking the No. 5 line of Beijing Metro as an example, the rolling stock scheduling plan with biweekly maintenance constraints was obtained, and the practicality and effectiveness of this model and MMAS algorithm was proved.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125424503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Team Task Complexity of Traffic Dispatchers in Operating Control Center:A Network-based Concept","authors":"Ke Niu, Weining Fang, B. Guo","doi":"10.1109/ICIRT.2018.8641596","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641596","url":null,"abstract":"A clear concept of team task complexity was proposed in this paper, aiming at understanding the particularity of the train dispatching team task in operating control center (OCC). Based on the review of the task complexity construct and definition, and the analysis of the team task feature under different levels of automation, a team task model was built. This team task network took the events in the task as nodes and the information cues between events as edges, which included both macro and micro impacts on the complexity. The definition of team task complexity was proposed as the combine impact of the macro complexity of the structure of caused by the links of all the events and the micro complexity of each event. Then four emergency senses of team task network models were built, and the complexity of these models could be intuitively differentiated. Finally, some application of this concept and following research plan was mentioned.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116124032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Constrained Consensus of Multiple Autonomous Vehicles with Nonconvex Constraints","authors":"Mengmeng Duan, Hongqiu Zhu","doi":"10.1109/ICIRT.2018.8641653","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641653","url":null,"abstract":"In this paper, we investigate the consensus problem for multiple autonomous vehicles with nonconvex constraints. We propose a distributed control algorithm and prove that consensus can be reached if the communication network jointly has a spanning tree. The analysis approach is based on the model transformation and the properties of the Metzler matrix and the stochastic matrix.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122693344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Integrated Train Speed Profiles optimization Considering Signaling System and Delay","authors":"Chaoxian Wu, Shaofeng Lu, F. Xue, Lin Jiang","doi":"10.1109/ICIRT.2018.8641566","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641566","url":null,"abstract":"Many researches for optimizing the railway operation have been conducted in the past decades. Train speed profile optimization and train schedule optimization are two main components in this field while at most of times they are investigated separately but not integrated. In this paper, we propose an integrated optimization approach based on mixed integer linear programming (MILP) to optimize the train speed profiles for minimizing the total energy consumption of two adjacent trains running on the same section between two stations, in which the fixed block signaling systems (FBS) and train delay are taken into account. The green wave policy (GWP) is considered in the paper to help plan the train speed profiles. A real-world case based on one specific section of Metropolitan Line in London Underground is studied using the proposed model in the paper, the performance of which shows the cross interaction among the train motion, signaling system and schedule and the results also present the effectiveness of the approach.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128792845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Improving Train Driving Performance under Disturbances by Intelligent Driver Advisory System","authors":"Hainan Zhu, Shigen Gao, Hai-rong Dong","doi":"10.1109/ICIRT.2018.8641628","DOIUrl":"https://doi.org/10.1109/ICIRT.2018.8641628","url":null,"abstract":"Unlike the trains in metro systems, trains in main line railway are operated by train drivers without automatic train control (ATO) systems. In addition, infrastructure, running environment and driver controller devices are also more complex and various. As a result, disturbances or even disruptions may influence the train driving process and disorganize normal train driving process. Driver Advisory System (DAS) has been studied and developed for many years with the main goal to guide train drivers towards better driving performance, and most efforts were put on energy-efficient and punctual driving under normal operational situations. This paper proposes an approach of intelligent DAS (iDAS) to assist train drivers improve driving performance under disturbance situations. Simulative experiments show that the proposed approach can effectively help the train drivers to be aware of, to handle and to recover to normal operation under typical disturbances.","PeriodicalId":202415,"journal":{"name":"2018 International Conference on Intelligent Rail Transportation (ICIRT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124133953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}