Gotowe bibliografie tematyczne / Railways communication system

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Gotowa bibliografia na temat „Railways communication system”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Railways communication system"

Branković, Nedžad, Aida Kalem i Adisa Medić. "Development of mobile communication systems for high-speed railway". Science, Engineering and Technology 1, nr 1 (30.04.2021): 29–34. http://dx.doi.org/10.54327/set2021/v1.i1.2.

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Development of high-speed railways set up challenges for new communication technologies. With the increase in speed, new requirements for communication systems have emerged that HSR requires greater reliability, capacity and shorter response time for efficient and safe operations. Mobile communication systems are crucial for the competitiveness of the railway industry and therefore have become one of the priorities addressed by the participants in the railway system to take advantage of technological opportunities to improve operational processes and the quality of provided transport services. The European Rail Traffic Management System (ERTMS) uses the Global System for Mobile Communications for Railways (GSM-R) for voice and data communication to communicate between trains and control centers. The International Railway Union is exploring new ways of communicating for high-speed railways because as speed increases this system becomes unreliable in information transmission. This paperwork presents an analysis of the evolution of communications on European railways since the usage of GSM-R. In addition, an overview of the various alternative solutions proposed during the time (LTE-R, Future Railway Mobile Communication System) as possible successors to GSM-R technology is given.

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Libati, Hastings M., Captain F. Kanungwe, Fines Miyoba i Ndiwa Mutemwa. "Development of a Real Time Trains Monitoring System". Zambia ICT Journal 1, nr 1 (11.12.2017): 25–29. http://dx.doi.org/10.33260/zictjournal.v1i1.15.

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With the evolution of technology that has occurred in digital systems, new services have appeared that can be applied in railways. Radio communications play an important role in the management of, exploration and maintenance of railway transports. Due to the importance of efficient service delivery and security in railways, there is need to integrate the use of the Global System for Mobile communication and global positioning systems. Transportation is a large and important part of the economy of any country. Railway transportation is one of the main transportation systems worldwide. To this effect, we should have a good and strong monitoring system that can locate a train at every instant. In this research, a proposal has been made for the implementation of a Global Positioning System (GPS) and global system for mobile communication (GSM) based train monitoring system on Tanzania Zambia Railway Authority (TAZARA) railway network that will enable controllers locate their trains at every instant. The GPS-GSM/GPRS (General Packet Radio System) module will be incorporated in the system. A GSM/GPRS module will transmit the location information to a web server. Every track and locomotive will be assigned a unique number for identification. The information of the train location will be continuously updated when the train is moving and the users will be accessing the information via the web. The updated information will be stored in the web server. Clients will request for particular train status and a designed web application will show the status in a Google map. An alternative radio voice communication system will be incorporated in the locomotives in case of failure on the monitoring system. This implementation will greatly improve service delivery to the company.

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Kolesnikov, Igor, Natalya Yaronova, Janibek Kurbanov i Nozima Khusnidinova. "Intelligent railway transport radio communication based on neural networks". E3S Web of Conferences 264 (2021): 05044. http://dx.doi.org/10.1051/e3sconf/202126405044.

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The article is devoted to the features of GSM-R as a basis for organizing a digital radio communication system on the railway to apply the European Integrated Radio Communication for the railways of Uzbekistan. The role of GSM-R for the interaction of digital radio communication with the European integrated system for expanding the functions of railway radio communication and safe movement of high-speed trains is shown. The article identifies the possibilities of building modern digital communication of the railway. The GSM-R communication network, its services and architecture for organizing digital communication were also defined. Recommendations on the use of GSM-R on the railway of Uzbekistan are given. It has been established that mobile communications should be a heterogeneous (heterogeneous) architecture. Also, it must have a variety of access networks that could operate in any frequency ranges.

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Zhuravleva, L. M., A. N. Malykh i A. N. Malykh. "NANOMATERIALS AND OPTOELECTRONICS IN HIGH-SPEED COMMUNICATION SYSTEMS". World of Transport and Transportation 14, nr 2 (28.04.2016): 74–80. http://dx.doi.org/10.30932/1992-3252-2016-14-2-8.

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[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)].ABSTRACT The article considers issues concerning increase in capacity of fiber-optic systems used on railways. The main directions of increasing information transmission speed are reviewed and analyzed, particularly enhancement of high-speed response of optical modulators and photodetectors through improving functional environment of optoelectronic devices and reducing inertia of the material. For this purpose, new materials are proposed in the form of multilayer nanostructures, along with manufacturing techniques and methods of assessing their quality characteristics required for design of new optoelectronic devices, that will positively affect railway communication systems’ performance. Keywords: railways, communication channels, information network, isotope effect, bandwidth, nanostructure, fiber-optic system, optoelectronic devices.

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Pencheva, Evelina, Ivaylo Atanasov i Ventsislav Trifonov. "Identity Management in Future Railway Mobile Communication System". Applied Sciences 12, nr 9 (24.04.2022): 4293. http://dx.doi.org/10.3390/app12094293.

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The Future Railway Mobile Communication System (FRMCS) has emerged as a worldwide standard for railway communication. This technology enables the operational efficiency and safety of railways to be improved by providing mission critical communications, machine-type communication for the railway system on board, in addition to trackside telemetry and broadband connectivity for passengers. Different equipment types, users, and functional identities can be involved in communication, and each of them is uniquely identified. Identity management is an important part of the security functions provided by the FRMCS system. This paper presents a service-oriented approach to identity management functionality, enabling service composition for railway applications and service virtualization. This paper studies functionality for the initial registration and subsequent deregistration of railway devices, users, and their functional identities, in addition to the transfer of the registered identities between different FRMCS serving areas while the train moves. Two FRMCS services that follow the principles of representational state transfer architecture are proposed. Services’ functionality is illustrated by use cases, data types, and application programming interfaces that enable services to be interacted with. Identity registration status models are developed, formally described, and mathematically verified. Discussion of the applicability of the proposed services for the implementation of FRMCS security and safety functions is provided. The presented service-oriented approach features a satisfactory level of flexibility and versatility.

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Rahul, V., Ch Kowsalya Devi i Dr Mohammed Ali Hussain. "Energy conservation technique for smart transportation system". International Journal of Engineering & Technology 7, nr 2.7 (18.03.2018): 414. http://dx.doi.org/10.14419/ijet.v7i2.7.10756.

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Electricity is a primary concern everywhere and for everyone. In our daily transportation, we observe most of the time electricity is used unnecessarily and Electric short-circuits occur frequently. Railway coaches are mainly considered in this paper. We have described how to reduce electricity consumption in railway coaches using the raspberry pi and ultrasonic sensors interconnected to the cloud. Considering present smart coaches in railways, the passenger count and their comfort are taken as challenging, but not the production and conservation of electricity. The annual power consumption of Indian Railways is nearly 4% out of countries annual power consumption. Not only in railways systems, this can be further implemented in any other transport systems or in any platforms as well, by this we can reduce the human intervention. Where the loco pilot can control the electricity usage from his cabin, if not it is automated. However, the wireless communication technologies are secured by SSL (Secure Socket Layer). Simply we connect all the required interfaces to pi to acquire the output.

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Korde, Nikhil, i Dinesh Rojatkar. "A Survey on Transferring Standards of GSM-R in Railway Sector". International Journal of Advance Research and Innovation 5, nr 1 (2017): 101–5. http://dx.doi.org/10.51976/ijari.511717.

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GSM-Railways (GSM-R), which is evolutionary railway mobile communication technology, are gradually replacing analogue radio systems. Although GSM-R is an impossible achievement in terms of European railway interoperability, from a telecommunication point of view, it is successive technology. This study present the transfer of a telecommunication standard to another railways and it studies whether the adoption of an upgraded version of the GSM standard (GSM‐R) turned out to be an efficient choice. The transfer and deployment of GSM‐R is technically importance to the success of another European railway project. The introduction of the new signaling system rests on achieving interoperability in radio‐communication.The study will focus on the GSM-R part of the ERTMS system and its interworking with ETCS.

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Fernández-Berrueta, Nerea, Jon Goya, Jaione Arrizabalaga, Iker Moya i Jaizki Mendizabal. "Railway Wireless Communications Channel Characterization". Applied Sciences 12, nr 1 (30.12.2021): 345. http://dx.doi.org/10.3390/app12010345.

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Railway applications are in continuous evolution with the aim of offering a more efficient, sustainable, and safer transportation system for the users. Generally, these applications are constantly exchanging information between the systems onboard the train and the trackside through a wireless communication. Nowadays, Global System for Mobile communications-Railway (GSM-R) is the technology used by European Train Control System (ETCS), but it is becoming obsolete. Therefore, alternatives for this technology have to be found for the different railway applications. Its natural evolution is to move forward with the latest technology deployed: Long-Term Evolution (LTE), which the Public Land Mobile Networks (PLMN) have already deployed. Therefore, testing the performance of this communication technology in the railway environment could be useful to assess its suitability and reduce the cost of railway network dedicated deployment. In order to do that, a methodology to characterize the communication environment is proposed. The main goal is to measure geolocated impairments of any communication channel in a railway environment being able to determine its behavior of the different communication technologies and find out possible coverage issues. Moreover, it could help in the selection of suitable communication technology for railway. This paper presents a brief description of the communication for railways and its QoS parameters for performance measuring. Afterward, the testing methodology is described, and then, the communication channel measurement campaign on a real track in Spain where the railway environment is variable is presented (tunnels, rural/urban area…). Finally, the measurements and results on this real track in Spain are shown. The results provide suitability of the 4G technologies based on the delay requirements for the implementation of ETCS over it.

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Islam, Umar, Rami Qays Malik, Amnah S. Al-Johani, Muhammad Riaz Khan, Yousef Ibrahim Daradkeh, Ijaz Ahmad, Khalid A. Alissa, Zulkiflee Abdul-Samad i Elsayed M. Tag-Eldin. "A Novel Anomaly Detection System on the Internet of Railways Using Extended Neural Networks". Electronics 11, nr 18 (6.09.2022): 2813. http://dx.doi.org/10.3390/electronics11182813.

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The Internet of Railways (IoR) network is made up of a variety of sensors, actuators, network layers, and communication systems that work together to build a railway system. The IoR’s success depends on effective communication. A network of railways uses a variety of protocols to share and transmit information amongst each other. Because of the widespread usage of wireless technology on trains, the entire system is susceptible to hacks. These hacks could lead to harmful behavior on the Internet of Railways if they spread sensitive data to an infected network or a fake user. For the previous few years, spotting IoR attacks has been incredibly challenging. To detect malicious intrusions, models based on machine learning and deep learning must still contend with the problem of selecting features. k-means clustering has been used for feature scoring and ranking because of this. To categorize attacks in two datasets, the Internet of Railways and the University of New South Wales, we employed a new neural network model, the extended neural network (ENN). Accuracy and precision were among the model’s strengths. According to our proposed ENN model, the feature-scoring technique performed well. The most accurate models in dataset 1 (UNSW-NB15) were based on deep neural networks (DNNs) (92.2%), long short-term memory LSTM (90.9%), and ENN (99.7%). To categorize attacks, the second dataset (IOR dataset) yielded the highest accuracy (99.3%) for ENN, followed by CNN (87%), LSTM (89%), and DNN (82.3%).

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Strelko, Oleh, Oleh Pylypchuk i Oksana Pylypchuk. "Study of development of regional railway system in Bukovyna". History of science and technology 12, nr 1 (19.06.2022): 133–49. http://dx.doi.org/10.32703/2415-7422-2022-12-1-133-149.

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The article is devoted to the study, generalization and systematization of scientific knowledge about the history of the establishment, development and operation of the regional railway system in Bukovyna in the second half of XIX – early XX centuries. The authors attempted to analyze the process of creation and operation of railways in Bukovyna during the reign of the Austro-Hungarian Empire based on a wide range of previously unpublished archival documents, periodicals, statistical literature and memoirs. The article studies the development of organizational bases for the construction of railways, the activity of the communication network management, lists a whole range of requirements and tasks set for railway transport in Bukovyna, the progress of their implementation, considers successes and difficulties in this work. It is determined that private railways, as important transport arteries of Bukovyna, were of national importance and played a significant role in the transport system of Austria-Hungarian Empire. They served the leading economic districts of Bukovyna, acting as an integral part of production in each of them. In other words, they were used for development of local, intersectoral and interregional relations. Regional railways, first of all, played an important role in the social and economic life of Bukovyna region. In most cases, they did not carry the strategic cargo, but made it possible to connect the most remote corners of separate areas of the region into a single whole. In practice, local railways were a significant addition to the main central line, providing the latter with a greater intensity of cargo and passenger turnover and thus increasing their profitability. At the same time, the trade volume between the outskirts and the center of the Austro-Hungarian Empire was increased. It contributed to the intensification of economic development of certain districts of Bukovyna region.

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Rozprawy doktorskie na temat "Railways communication system"

Saideh, Michel. "Contributions on radio access techniques for future railway communications system". Thesis, Lille 1, 2019. http://www.theses.fr/2019LIL1I092.

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Avec l’automatisation croissante des fonctions de contrôle commande dans le domaine ferroviaire, on assiste aujourd’hui à une augmentation drastique des échanges d’information. Ces échanges sont cruciaux pour le déploiement du train autonome, la réduction des coûts d'exploitation et de maintenance, l’amélioration de la sécurité. En même temps, de nombreux nouveaux services d’information et de divertissement s’appuyant sur des systèmes de communication sont proposés aux passagers. Pourtant, il n’y a pas aujourd’hui de technologie unique qui puisse satisfaire tous les besoins exigeants en termes de performances. En conséquence, différents projets de recherche industrielle et académique sont en cours aux niveaux européen et international pour développer le système de communication mobile ferroviaire de demain (ou Future Railway Mobile Communication Système – FRMCS). Ce système s’appuiera sur la technologie IP et sera adaptatif, agnostique à la technologie radio et résilient aux évolutions technologiques. En outre, il devra offrir des débits de données élevés, une faible latence, une large bande passante et une utilisation efficace du spectre. Le FRMCS devra être en mesure de choisir en temps réel entre différentes technologies d’accès radio disponibles en fonction des besoins des applications et de l’environnement ferroviaire. Parmi les technologies d’accès disponibles, on peut citer le Wi-Fi, le LTE, les satellites et le standard 5G NR en cours de développement. Ainsi, les contributions de cette thèse de doctorat s’inscrivent dans le cadre du développement d’un système de communication adaptatif (ACS- Adaptable Communication System) pour le ferroviaire en considérant des technologies de pointe du futur standard 5G NR et au-delà. Différentes technologies clef ont récemment été proposées dans le cadre de la standardisation 5G et au-delà. Parmi celles-ci, les techniques d'accès radio jouent un rôle majeur sur les métriques clés, telles que l'utilisation efficace du spectre disponible, les débits de données élevés et la complexité du système émetteur-récepteur. Une des évolutions technologiques majeure dans ce domaine consiste en l’introduction de différentes techniques de modulation multi-porteuses (MCM- Multi-Carrier Modulation) et des techniques d’accès multiple non orthogonales (NOMA- Non-Orthogonal Multiple Access).Dans ce mémoire de thèse de doctorat, nous commençons par étudier les techniques MCM dans le contexte des défis posés par la grande vitesse ferroviaire. Une évaluation des performances est réalisée en considérant différents systèmes multi porteuses dans différents scénarios. La forme d'ondes FBMC (Filtered Bank Multi-Carrier) offre une grande robustesse dans des scénarios de forte mobilité tout en exploitant efficacement le spectre disponible. Cependant, les avantages de la modulation FBMC s'accompagnent d'interférences intrinsèques supplémentaires qui remettent en question les techniques de conception des émetteurs-récepteurs traditionnels. Ainsi, nous proposons différentes contributions qui concernent les techniques d’estimation et d’égalisation du canal pour la forme d’onde FBMC. Les contributions visent à augmenter les performances finales au prix d’une complexité supplémentaire négligeable si on compare à la littérature existante
Nowadays, a huge amount of data exchanges is needed in the railway system. This is particularly to support autonomous train, reduce operation and maintenance costs, increase safety and security. In the same time, many new services are offered to passengers. There is no unique technology that can satisfy all these needs. Consequently, different industrial and academical research projects are on-going at European and International levels to develop the Future Railway Mobile Communications System (FRMCS). FRMCS will be IP-based, adaptable, agnostic to radio technology and resilient to technological evolutions. In addition, it should support high data rate, low latency, large bandwidth, and efficient spectrum utilization. The FRMCS is expected to be able to choose in real time between different available radio access technologies in function of applications needs and the surrounding railway environment. Among these technologies, we can mention the Wi-Fi, LTE, satellites and the 5G NR standard in development. Thus, the contributions of this PhD thesis are part of the development of an Adaptable Communication System (ACS) for the railway by considering cutting-edge technologies of the future 5G NR system and beyond. Different key enabling technologies have been proposed recently under the umbrella of 5G and Beyond communication systems. Among which, radio access techniques play major role over key metrics, such as the efficient utilization of the available spectrum, the high data rates, and the computational complexity of the transceiver system. One of the major technological evolution in that domain concerns the introduction of different Multi-Carrier Modulation (MCM) and Non-Orthogonal Multiple Access (NOMA) techniques. In this Ph.D thesis, we start by considering the MCM technology in the context of high speed railway. A performance evaluation study is conducted where different MCM schemes are highlighted in different scenarios. The Filtered Bank Multi-Carrier (FBMC) waveform presents high robustness to high mobility scenarios while exploiting the available spectrum efficiently. However, FBMC advantages come with additional built-in interference that challenges traditional transceiver design techniques. Thereby, we propose different contributions that handle the channel estimation and equalization aspects of the FBMC waveform. The contributions aims to assure better performance at the cost of negligible additional complexity compared with the literature

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Govoni, Marco <1987&gt. "Evolution of Communication and Monitoring Systems for the Management of Traffic and Safety Control Systems in Railway Sites". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/7888/1/Dottorato_GOVONI_1.pdf.

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The collaboration between R.F.I. S.p.A. and Alma Mater Studiorum of Bologna had the purpose to evaluate the feasibility and to investigate the main radar sensor tech- nologies suited to be integrated with existing signalling systems in rail sites, with particular reference to the UWB technology. This activity has been supported by a study of the UWB radio channel characteristics in a reference (LC-like) scenario, through ray tracing (RT) simulation. It was also studied, with the aid of computer simulations, the remote interconnection of several radars via ﬁber optic links (RoF), in order to concentrate in a single physical location all the signal processing operations and network control.

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Soderi, S. (Simone). "Evaluation of industrial wireless communications systems’ security". Doctoral thesis, Oulun yliopisto, 2016. http://urn.fi/urn:isbn:9789526212463.

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Abstract The worldwide success of wireless communications was originally fueled by the possibility to replace existing cables with wireless solutions. This phenomenon imposed the development of security engineering as a multidisciplinary field. Although wireless solutions can reduce installation costs and allow introducing new services, the end–users expect it to have the same level of security as they would normally have with wired solutions. Secure communications is an important part of the overall security of industrial wireless communications systems (IWCS). The aim of this thesis is to develop new security engineering methodologies for IWCS. The author develops countermeasures against confidentiality and integrity attacks and carries out a security analysis covering the protocol, electromagnetic and physical layer. In the first part of the thesis, Host Identity Protocol (HIP) is utilized to secure communication in an intra–vehicular network. Simulations and measurement campaigns are also conducted to evaluate the impact of the overhead on security in a tunnel, considering line–of–sight (LOS) and non–LOS (NLOS) scenarios. Electromagnetic analysis (EMA) is an important step in the development of safety–related systems. Today, the increasing usage of smaller integrated circuit also increases the susceptibility to electromagnetic (EM) interference. From near–field (NF) to far–field (FF) transformation, a method for the evaluation of the emissions leakage is investigated. The virtual EM (VEM) interface of the device–under–test (DUT) is studied, and it is described how an adversary can exploit it for denial of service (DoS) attacks. An effective jamming attack model is studied, and the theoretical calculations are validated with experiment–based results. Finally, focusing attention on physical layer security, two algorithms are developed. Active radio frequency fingerprinting (RFF) implements the exchange of a public key during the setup of secure communication. Afterwards, utilizing a jamming receiver in conjunction with the spread spectrum (SS) watermarking technique, the watermark–based blind physical layer security (WBPLSec) protocol is presented. The analysis and results indicate how the WBPLSec seems to be a valuable technique for deploying physical layer security by creating a secure region around the receiver
Tiivistelmä Langattoman tietoliikenteen maailmanlaajuista suosiota kiihdytti alun perin mahdollisuus korvata tietoliikennejärjestelmissä käytetyt kaapelit langattomilla ratkaisuilla. Ilmiö lisäsi myös tarvetta kehittää alan turvatekniikkaa monialaisen tutkimuksen pohjalta. Vaikka langattomat ratkaisut merkitsevät pienempiä asennuskustannuksia ja tarjoavat mahdollisuuksia luoda uudenlaisia palveluja, järjestelmien loppukäyttäjät edellyttävät kuitenkin niiden turvallisuuden olevan vastaavalla tasolla kuin langallisissa verkoissa. Myös teollisuuden langattomien tietoliikennejärjestelmen turvallisuus riippuu pitkälti viestintäkanavien turvallisuudesta. Väitöksen tavoitteena on kehittää uusia menetelmiä, joilla teollisuuden langattomat tietoliikennejärjestelmät voitaisiin turvata. Väitöksessä kehitetään toimenpiteitä tietoliikennejärjestelmien luottamuksellisuuteen ja koskemattomuuteen kohdistuvia hyökkäyksiä vastaan ja toteutetaan turvallisuusarviointi, joka kattaa järjestelmän protokollakerroksen sekä sähkömagneettisen ja fyysisen kerroksen. Väitöksen ensimmäisessä osassa hyödynnetään HIP–protokollaa (Host Identity Protocol) liikennevälineen sisäisen tietoliikennejärjestelmän turvallisuuden varmistamisessa. Lisäksi siinä kuvataan simulaatiot ja mittaushankkeet, joiden tavoitteena on arvioida käytetyn protokollan turvallisuusvaikutuksia esteettömän (line–of–sight, LOS) ja esteellisen (non–line–of–sight, NLOS) näköyhteyden tapauksissa. Sähkömagneettinen analyysi on tärkeä vaihe turvajärjestelmien kehitysprosessissa. Järjestelmissä käytetään yhä enemmän pieniä integroituja piirejä, mikä voi myös altistaa ne sähkömagneettisille (electromagnetic, EM) häiriöille. Väitöksessä tutkitaan lähikenttä–kaukokenttä -muunnokseen perustuvan arviointimenetelmän avulla sähkömagneettisen vuotosäteilyn tasoa. Lisäksi perehdytään testattavan laitteen (device under test, DUT) virtuaaliseen EM–liitäntään ja kuvataan, miten vastaavaa liitäntää voidaan hyödyntää palvelunestohyökkäyksissä. Väitöksessä tutkitaan myös tehokasta häirintämallia ja validoidaan teoreettisten laskelmien tulokset kokeellisesti. Lopuksi väitöksessä keskitytään tietoliikennejärjestelmän fyysisen kerroksen turvallisuuteen ja kehitetään kaksi algoritmia. Aktiivisen radiotaajuisen tunnistusmenetelmän avulla voidaan vaihtaa julkisia avaimia turvallista tietoliikenneyhteyttä muodostettaessa. Lisäksi esitellään vesileimausmenetelmään perustuva fyysisen kerroksen salausmenetelmä, WBPLSec. WBPLSec luo vastaanottimen ympärille suoja–alueen, minkä ansiosta se vaikuttaa analyysin ja tutkimustulosten perusteella olevan tehokas menetelmä toteuttaa fyysisen kerroksen suojaus

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Sutton, Kevin. "Les Nouvelles Traversées Alpines : Entre co-spatialité de systèmes nationaux et recherche d'interspatialité, une géopolitique circulatoire". Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00689249.

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L'approche moderne des Traversées Alpines s'est fondée sur un postulat de corrélation de trois dynamiques : l'accélération, la concentration et l'extériorisation. Il convient aujourd'hui de le réinterroger. Les cadres d'étude récents des phénomènes de Traversées Alpines ont enfermé ce champs dans des approches spatiales segmentées (corridor, axe ; découpage courant Alpes occidentales/centrales/orientales). Ce contexte épistémologique révèle la prédominance du versant nord comme prisme de considération du phénomène. Il renforce le paradoxe animant le fond des Traversées Alpines : alors que l'Italie est le dénominateur commun à tous les axes de franchissement, ce pays est le plus absent tant dans la littérature que dans la menée politique des conditions d'exercice des flux. Le contexte géopolitique explique pour partie cette situation. Le jeu politique des Traversées témoigne d'une forme de " complexe de centralité " animant l'Autriche et plus encore la Suisse. Ce paradoxe remet en cause un premier postulat moderne, la course à l'extériorisation. Si les nœuds associés au franchissement se retrouvent aujourd'hui jusqu'à Mannheim voire Rotterdam, le cadre politique n'est, lui, pas dépassé. Le cadre technique, caractérisé par une recherche de continuités réticulaires (libéralisations, interopérabilités, tunnels de base), se concrétise au contact du cadre politique par l'émergence d'un mouvement nodal contraire. L'ouverture des tunnels de base comme la mise en place des réseaux de production des nouveaux acteurs sur le marché ferroviaire inventent et réactivent des nœuds à l'intérieur du massif. Cette nodogenèse interroge ainsi le présupposé répandu d'effacement, corollaire de cette ère affirmée des Nouvelles Traversées Alpines. L'accélération portée par les tunnels de base ne produit alors pas uniquement, à l'échelle des territoires alpins, une dynamique d'extériorisation ; il en va de même en ce qui concerne la concentration. L'itinéraire nouvellement ouvert n'efface pas les itinéraires précédents. Le tunnel de base du Lötschberg est exploité de concert avec la ligne de faîte. Il en sera de même avec le Gothard ou le Brenner. Si bien que la question de l'agencement vertical des logiques de franchissement se pose dans ce contexte d'éclatement des linéaires. Réintériorisation, éclatement, accélération apparaît comme le nouveau tryptique à l'œuvre autour des Traversées Alpines. L'enjeu de la nouveauté est de remettre en cause les acquis d'une lecture moderniste et de questionner la profondeur du tournant actuel. Tout ne change pas : la dimension nationale reste prédominante, l'Italie reste en retrait. Les Traversées Alpines restent un ensemble de systèmes nationaux cospatiaux, en recherche d'interspatialités entre eux et avec les territoires traversés. Une configuration territoriale émerge, la basse vallée, comme espace de conflictualités en mal de médiations. La basse vallée accueille la nodogenèse, est le théâtre des oppositions aux projets actuels comme dans le Val de Suse, porte la majeure partie des chantiers des tunnels de base... Cet espace, hier considéré comme intermédiaire, réinvente la notion de piedmont en se posant en potentielle intermédiation entre des dimensions verticales toujours plus centrifuges. La " nouveauté " est ainsi à chercher dans cette nouvelle donne spatiale.

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Dubey, Vineeta. "Studies on high performance cooperative communication in free space optical links with application to level crossing warning system for railways". Thesis, 2018. http://localhost:8080/xmlui/handle/12345678/7671.

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Wang, Hung-Hsiang, i 王鴻翔. "Design and Analysis of Railway Communication System: Train-to-Ground, In-Train and In-Station Communications". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/tj3476.

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博士
國立交通大學
電信工程研究所
103
It has attracted much attention to provide broadband wireless services in railway transport systems in recent years. In this dissertation, we aim to analyze and overcome some issues in railway communication systems, including train-to-ground communications, in-train communications and in-station communications. For the train-to-ground communications, we discuss echo channel effect and define the corresponding criteria in a Time Division Duplexing (TDD) DAS railway com-munications system. Furthermore, timing drift problem while applying moving an-tenna selection technique to solve the echo channel effect is illustrated. Compensation algorithms then are proposed. Simulation results show that the proposed techniques can solve not only the interference problem in TDD-DAS, but also provide better scalability in system deployment. In the in-train and in-station communications, we consider a central-controlled D2D architecture, in which a cellular operator can decide whether mobile devices can connect to each other directly. We aim to maximize system throughput while also achieve fairness in resource allocation. An algorithm that separates resource frame into resource-dedicate area and resource-contention area for fairness and throughput improvement is proposed. The algorithm dynamically adjusts the boundary of the resource-dedicate area and resource-contention area. Criteria based on Proportional Fair (PF) metric are formulated. Simulation results show that the proposed algorithm can maintain good fairness level and increase system throughput by exploring radio resource spatial reuse gain among D2D communication pairs.

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Mahobe, Medhavi. "UWB Radio Wireless Communication System Design for Railway Tunnels". Thesis, 2013. http://ethesis.nitrkl.ac.in/5018/1/UWB_Radio_Wireless_Communication_System_Design_for_Railway_Tunnels.pdf.

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Railway is an economical and comfortable mode of transportation for long distances. Safety, reliability and good quality of service are the main concern of railway industries which are maintained by railway management and communication system. There are several existing management systems like CCCS, ATCS, PTC and many more. With increasing population, demand for railway services also increases. To full fill these demands railway infrastructure has been developing continuously. By implementing latest technologies for railway communication we can make railway transportation safer, efficient, and more accessible. Ultra wideband radio communication system is amongst those very latest and rapidly growing technologies. This research work focuses on the study of UWB radio based wireless communication system for railway tunnels, whose main task is to maintain an uninterrupted data transmission between train driver to wayside controller.

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Chiu, Chih-Hao, i 邱志豪. "The Handover Process for Broadband Wireless Communication System on High Speed Railway". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/21425504917513063810.

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碩士
中華大學
電機工程學系(所)
97
In this thesis, we adopt the handover procedure that are defined in WiMAX standard, and study broadband wireless communication system on high speed railway. Because a high speed train runs on track have always a regular destination,and the target base station can be predicted before handover. Thus our research will focus on adjust traditional handover procedure of WiMAX according to characteristic conditions of high speed railway. Here, handover algorithms are based on relative receiver signal strength with hysteresis margin and absolute threshold. Time of signal lost and throughput are used as criteria for our handover performance evaluation that are obtained via radio propagation channel model at suburban areas. In simulation results, we will analysis performance on the proposed procedure and traditional procedure, and further compare efficiency of above performance criteria according to differently numerical combinations of hysteresis margin and absolute threshold.

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Pan, Jian-Ming, i 潘建銘. "THE MEASUREMENTS AND ANALYSIS OF THE POWERLINE COMMUNICATION APPLIED TO THE ELECTRICAL RAILWAY SYSTEM". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/11000125582462883743.

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碩士
大同大學
通訊工程研究所
93
This thesis discusses the benefits of using the powerline communication (PLC) as the technology to transmit the network packets instead of using the wireless communication system, such as cell phones, in an electrical railway system. An electrical railway system model with the data transmission using the powerline communication with mobile contacts in the power supply system is built. A track-powered model train module is used as the carrier of the mobile contact, which travels along the path of the power line. With this model, the simulation of the powerline communication applied to the electrical railway system, such as rapid transit system and high speed railways, is conducted, so are the measurements of data transmission and the performance evaluation under various speeds. In the end, the possible problems with the powerline communication being applied to the real world electrical railway systems are presented.

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Zhang, Wei-Pong, i 張煒鵬. "THE SIMULATION AND ANALYSIS OF POWER-LINE COMMUNICATION WORKING ON HIGH-SPEED ELECTRICAL RAILWAY SYSTEM". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/83518976671998348576.

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碩士
大同大學
通訊工程研究所
97
Now days, there are many power-line network products in the market for customers to purchase, such as a PLC Ethernet adapter. No need for extra Ethernet wires, just plug the adapter’s power line into an outlet then the computer could connect to the Internet through the power line. High-speed railway system, which power source is the power substation, the overhead supply system provides power line wires to connect both the power substation and the locomotive. If the power-line communication (PLC) network could be established, the passengers who sit on the train can use their mobile devices to surf the Internet. This paper provides an idea which is using power-line communication network working on the high-speed electrical railway system. In order to implement this idea, a high-speed railway simulation system must be built. With this system, it is possible to simulate the communication between internet servers and passengers’ mobile devices by using indoor power source. By observing the communication`s service quality, this paper could analyze the effects which affect the simulation and consider the possibility of using PLC network working on the high-speed electrical railway system in the real world.

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Książki na temat "Railways communication system"

Oparin, Evgeniy, Andrey Kanaev i Mariya Saharova. SYNCHRONIZATION IN TELECOMMUNICATION SYSTEMS. ru: Publishing Center RIOR, 2023. http://dx.doi.org/10.29039/02107-1.

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The tutorial presents the basic concepts and definitions in the field of synchronization of communication networks, considers the principles of building synchronization systems, as well as issues of their technical operation and management, including under the influence of attacks by organized intruders. It is intended for full-time and part-time students of the specialty "Train traffic support systems", specializations "Telecommunication systems and networks of railway transport" and "Radio engineering systems in railway transport", as well as graduate students of the scientific specialty "Systems, networks and devices of telecommunications". It may be useful for engineers involved in the design and operation of synchronization systems and telecommunications systems.

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Lauckner, Mark. Canadian railway communications insulators 1880-1920. Mayne Island, B.C: Gyote Pub., 1995.

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Consultants, SLI. Regional Study on railway telecommunications and signalling: Final report. Vancouver, Canada: Canadian Transport Technical Services Group, 1988.

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Lauckner, Mark. Rarity and value guide for Canadian railway communications insulators. Mayne Island, B.C: Gyote Pub., 1998.

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England) IEE Seminar on Railway Information Systems (2004 London. The IEE railway information systems: Wednesday, 30 June 2004, the IEE, Savoy Place London, WC2R OBL. London: Institution of Electrical Engineers, 2004.

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K, Newson M., i ERA Technology Ltd, red. Railways and communication systems-- rail travel: Improving the passenger interface ; conference proceedings, 17 February 1998, London, UK. London: ERA Technology, 1998.

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England) IEE Seminar on Railway System Modelling: Not Just for Fun (2004 London. The IEE Seminar on Railway System Modelling--Not Just for Fun: The Grange Holborn Hotel 50-60 Southampton Row, London, UK : Thursday, 30 September 2004. London: Institution of Electrical Engineers, 2005.

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Advancement and Integration of Communication Systems: Railways and Communications Systems: Conference Proceedings, 18 February 1998. ERA Technology Ltd, 1998.

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Australia. Comparison of Overseas Railway Systems (Information Paper / Bureau of Transport and Communications E). Australian Government Publishing Service, 1988.

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Canadian Railway TCommunications Insulators 1880-1930. Wyd. 2. Gyote Publishing, 1996.

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Części książek na temat "Railways communication system"

Nikhil Raj, Rohan Sharma, Sagar Majumdar, Rajesh Singh i Anita Gehlot. "An Optimized Approach: Air Energy Trap System in Railways for Power Generation". W Proceeding of International Conference on Intelligent Communication, Control and Devices, 959–64. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1708-7_112.

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Bouchez, Benoît, i Luc de Coen. "Communication Systems for Railway Applications". W Vehicular Networking, 83–104. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470661314.ch4.

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Allen, Ben, Benedikt Eschbach, Marion Berbineau i Michael Mikulandra. "Defining an Adaptable Communications System for All Railways". W Lecture Notes in Computer Science, 53–55. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90371-2_6.

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Ni, Shaoquan, Miaomiao Lyu i Hongxia Lv. "Railway Train Working Diagram Plan System". W Advances in Smart Vehicular Technology, Transportation, Communication and Applications, 63–69. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-70730-3_8.

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Steine, Tor Olav. "The Norwegian State Railway System GTL (1976)". W IFIP Advances in Information and Communication Technology, 290–98. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17145-6_30.

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Nardone, Roberto, Ugo Gentile, Massimo Benerecetti, Adriano Peron, Valeria Vittorini, Stefano Marrone i Nicola Mazzocca. "Modeling Railway Control Systems in Promela". W Communications in Computer and Information Science, 121–36. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29510-7_7.

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Sujatha, K., K. Senthil Kumar, Nallamilli P. G. Bhavani, V. Srividhya, T. Kalpalatha Reddy i K. S. Ramkumar. "Automation of Railway Engine Pilot Security System Using Multimodal Biometric Identification". W Information and Communication Technology, 1–12. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5508-9_1.

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Marradi, Livio, Antonella Albanese i Stella Di Raimondo. "RUNE (Railway User Navigation Equipment): Architecture & Tests". W Satellite Communications and Navigation Systems, 461–79. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-47524-0_35.

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Kisilowski, Jerzy, i Rafal Kowalik. "The Vision System for Diagnostics of Railway Turnout Elements". W Communications in Computer and Information Science, 221–33. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97955-7_15.

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Nardone, Roberto, Ugo Gentile, Adriano Peron, Massimo Benerecetti, Valeria Vittorini, Stefano Marrone, Renato De Guglielmo, Nicola Mazzocca i Luigi Velardi. "Dynamic State Machines for Formalizing Railway Control System Specifications". W Communications in Computer and Information Science, 93–109. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17581-2_7.

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Streszczenia konferencji na temat "Railways communication system"

Sniady, Aleksander, Morten Sønderskov i José Soler. "VoLTE Performance in Railway Scenarios". W 2015 Joint Rail Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/jrc2015-5723.

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GSM-Railways (GSM-R) is the current standard for railway voice and data communication. GSM-R provides railway specific voice services, such as Railway Emergency Call (REC). GSM-R provides also the European Train Control System (ETCS), which offers in-cab signaling and Automatic Train Protection (ATP). Despite these features and services, GSM-R has various major shortcomings. Therefore, alternative technologies are considered to replace GSM-R and become the next generation railway mobile communication network. 3GPP Long Term Evolution (LTE) is a likely candidate for GSM-R replacement. LTE is more efficient, flexible and offers much higher capacity, which allows the railway network to provide new communication-based applications for railways. Most of the research on LTE in railways has been focused on data-based railway applications (ETCS signaling and other). Nevertheless, voice communication is still a crucial service for railways. Regardless of its advantages, LTE can only become a railway communication technology if it provides voice communication fulfilling railway requirements. This paper presents how Voice over LTE (VoLTE) can be used to build railway communication services. Examples of Railway Emergency Call and One-to-One Call are provided. Service performance, in terms of call setup times and voice transmission quality, is analyzed in simulation scenarios modelling two railway scenarios in Denmark.

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Ugnenko, Yevheniia, Olha Tymchenko, Elena Uzhviieva, Nataliia Sorochuk i Gintas Viselga. "Innovative Geoinformation Systems for the Design of Communication Paths". W 11th International Conference “Environmental Engineering”. VGTU Technika, 2020. http://dx.doi.org/10.3846/enviro.2020.693.

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The article analyses the volume of passenger traffic from 1990 to 2019 for land, water and air transport. From the materials obtained and the experience of the networks of European and world high-speed railways, goals are set. High-speed lines designed exclusively for passenger traffic. This moment plays an important role in reducing the cost of construction, increasing the market and economic profitability. According to the data from the State Statistics Service of Ukraine, it is possible to calculate the passenger flow based on the known parameters for 2020–2032 in the direction of Kiev–Lviv. The design of high-speed lines should meet general requirements aimed at satisfying the basic characteristics of a high-speed railway system, which works in conjunction with the European High-Speed Railway network. The compatibility of the parameters of high-speed lines with the parameters of traditional lines is part of the operational requirements for the gradual introduction of a network of high-speed railways. Possible scenarios to achieve the required compatibility should cover all subsystems.

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Bharani, J. C., M. Gowtham, K. Narmada i J. Ram Prasath. "Fire rescue system in railways using LabVIEW". W 2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE). IEEE, 2014. http://dx.doi.org/10.1109/icgccee.2014.6922472.

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Rakhmatov, Ziyodullo. "The System of Marketing Communications in the Passenger Transport by Railway". W International Conference on Eurasian Economies. Eurasian Economists Association, 2018. http://dx.doi.org/10.36880/c10.02122.

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Latter trends evidence the growing competition amongst the transportation modes in the Republic of Uzbekistan, led by the development of the railway sector. In growing competitive conditions, it is vital to for the management of JSC "Uzbekistan Temir Yollari" to implement the most modern approaches and methods for arranging passenger transportation. This article aims to review the role of marketing activities in increasing the competitiveness of the railway transportation sector. The improvement of the transport activities is associated with the developments of social and economic sectors of the country. Thus, the purpose of the research is to identify the role of railway sector in the economic development of the country, as well as the influence of the social sector improvements to the competitiveness of the railway industry. Furthermore, the study investigates the modern marketing strategies in promoting the railway sector. The global experience proves the importance of planning effective marketing communications in developing the railway sector. The research findings suggest the application of a client-oriented approach as the most effective strategy of marketing communications strategy in the country. The client-oriented approach allows to accurately complete the planning process at each stage of service delivery, that assumes the previously planned algorithm of the marketing communications based on the received results. The importance of the previously planned algorithm is that it allows step by step planning activities of marketing communication considering the features of the railways transportation and in case of failure, allows to optimize this process through applying necessary measures.

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Devan, P. Arun Mozhi, G. Manisha, K. G. T. Rajarajeswari, M. Priyanga i K. Sangeetha. "FIRE SAFETY AND ALERTING SYSTEM IN RAILWAYS". W 2018 3rd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT). IEEE, 2018. http://dx.doi.org/10.1109/rteict42901.2018.9012364.

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Arora, Pankit, Akshath Dhar, Tushar Singh i Anju Mishra. "Abandoned object identification and detection system for railways in India". W 2017 International Conference on Emerging Trends in Computing and Communication Technologies (ICETCCT). IEEE, 2017. http://dx.doi.org/10.1109/icetcct.2017.8280332.

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Amanna, Ashwin, Manik Gadhiok, Matthew J. Price, Jeffrey H. Reed, W. Pam Siriwongpairat i T. Kee Himsoon. "Rail-CR: Cognitive Radio for Enhanced Railway Communication". W 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36201.

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Robust, reliable, and interoperable wireless communications play a vital role in the success of railroad operations. This paper describes an effort towards developing a railroad-specific “cognitive radio” (Rail-CR) that can meet the needs of future wireless communication systems for railways by making positive train control (PTC) communication more interoperable, robust, reliable, and spectrally efficient, and less costly to deploy and maintain. Cognitive radios are a cutting edge research area that combines artificial intelligence (AI) with Software Defined Radios (SDRs) with the goal of improving upon existing radio performance. SDRs are radios in which capabilities are flexible due to realizing some functionality in software as opposed to a purely hardware platform. By utilizing situational awareness from the radio in the form of observable parameters, often known as ‘meters’, a cognitive engine (CE) utilizes software-based decision-making algorithms to determine if a change in the radio parameters, commonly referred to as ‘knobs’, is required based on sets of predefined goals. Additionally, learning algorithms dovetail with the decision making to enable the system to track and utilize past decisions and observations.

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Gangwar, Nitu, Tushar Semwal i Shivashankar B. Nair. "CARE: An IoT based system for passenger service and comfort in railways". W 2017 9th International Conference on Communication Systems and Networks (COMSNETS). IEEE, 2017. http://dx.doi.org/10.1109/comsnets.2017.7945358.

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Ajeesh, K. P., R. Ashis., Mary Helna Muttath, Nidheesh K. Chandran, C. R. Sreedevi i R. P. Praveen. "A novel fuzzy logic controller based automatic caution order system for Indian railways". W 2012 IEEE International Conference on Advanced Communication Control and Computing Technologies (ICACCCT). IEEE, 2012. http://dx.doi.org/10.1109/icaccct.2012.6320780.

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Shang, Huichao, Ruifeng Chen, Guoyu Ma, Haoxiang Zhang, Ruisi He, Bo Ai i Zhangdui Zhong. "Performance Evaluation of Tandem Spreading Multiple Access with Polar Code System for IoT-Railways". W icWCSN 2023: 2023 10th International Conference on Wireless Communication and Sensor Networks. New York, NY, USA: ACM, 2023. http://dx.doi.org/10.1145/3585967.3585972.

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