Sökning: "signalsystem"

Visar resultat 11 - 15 av 33 uppsatser innehållade ordet signalsystem.

  1. 11. Interoperability Study of the European and Chinese Railway Signalling Systems : Case study in Ethiopia

    Master-uppsats, KTH/Transportplanering

    Författare :Kebron Temedo Tana; [2021]
    Nyckelord :Chinese Train Control System; European Train Control System; European Rail Traffic Management System; Ethiopian Railway Corporation; Signalling; Chinese Train Control System; European Train Control System; European Rail Traffic Management System; Ethiopian Railway Corporation; Signalsystem;

    Sammanfattning : The railway industry in Ethiopia has been an important way of communication and transportation for a long time. It is a developing sector with many national plans for future investments. However, the current major corridors of Ethio­-Djibouti and Awash­-Weldiya have interoperability issues due to two different signalling systems being used. LÄS MER

  3. 12. Roslagsbanan: A capacity comparison between the current ATC system and the implementation of a CBTC system

    Master-uppsats, KTH/Transportplanering

    Författare :Chrysostomos Sofroniou; [2021]
    Nyckelord :Roslagsbanan; CBTC; moving block; fixed block; safe braking curve; capacity; Roslagsbanan; CBTC; rörligt block; fast block; säker bromskurva; kapacitet;

    Sammanfattning : Communications-based train control (CBTC) aims to improve headways in the railway systems while maintaining or even improving safety. By means of the CBTC systems, the exact position of a train is known more accurately than the traditional signalling systems. LÄS MER

  4. 13. Reliability Study of ERTMS in Sweden

    Uppsats för yrkesexamina på grundnivå, Lunds universitet/Trafik och väg

    Författare :Jacob Månsson; Kristoffer Wallenbro; [2020]
    Nyckelord :ERTMS; ETCS Level 2; Sweden; Reliability Analysis; ATC-2; Technology and Engineering;

    Sammanfattning : Sweden is currently undergoing a transition phase to a new signalling system on its railway network. ATC-2 is the current point information system in use on the network. The system will gradually be replaced with ERTMS, which will become the standardised signalling system in the European Union (EU). LÄS MER

  5. 14. Ledtider och Kontinuerliga flöden : En studie av informationsflöden inom ett råvaruflöde ur ett Lean perspektiv

    Kandidat-uppsats, Uppsala universitet/Industriell teknik

    Författare :Lene Schill; [2019]
    Nyckelord :communication; continuous flows; customer needs; informations flows lean; lead times; informationsflöden; kommunikation; kontinuerliga flöden; kundbehov; lean; ledtider;

    Sammanfattning : Due to shortcomings in an information flow, waiting times arise within a raw material flow, that lead to delays in delivery to the producing unit, which in turn causes delays in delivery to end customers. The purpose of the study has been to reduce delays to the producing unit and towards the end customer. LÄS MER

  7. 15. Utvärdering av roterande borstlösfrekvensomformare tillspårledningar

    M1-uppsats, KTH/Hälsoinformatik och logistik

    Författare :Leith Aldahan; Ivan Kudoori; [2019]
    Nyckelord :Frequency converter; induction motor; track circuit; asynchronous motor; railway signaling; reluctance motor; RAMS; Frekvensomformare; asynkronmotor; spårledning; asynkronmaskin; signalsystem; reluktansmotor; RAMS;

    Sammanfattning : Spårledningar används inom tunnelbanan för att visa tågets position samt bestämma tågets hastighet genom att bryta spänningsamplituden i signalen vid olika frekvenser. Frekvensen till spårledningen fås från en roterande frekvensomformare. I dagens anläggning används roterande frekvensomformare med borstar. LÄS MER