Sökning: "malfunction prediction"

Hittade 5 uppsatser innehållade orden malfunction prediction.

  1. 1. Development of a Software Reliability Prediction Method for Onboard European Train Control System

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Guillaume Pierre Longrais; [2021]
    Nyckelord :Machine Learning; Software Reliability Growth Prediction; Linear Regression; Artificial Neural Network; Multi-Layer Perceptron; Imperialist Competitive Algorithm; Long Short-Term Memory Network; Convolutional Neural Network; Maskininlärning; förutsägelse av tillväxten av programvarans tillförlitlighet; linjär regression; artificiellt neuralt nätverk; flerskikts-perceptron; imperialistisk konkurrensalgoritm; nätverk med långt korttidsminne; konvolutionellt neuralt nätverk;

    Sammanfattning : Software prediction is a complex area as there are no accurate models to represent reliability throughout the use of software, unlike hardware reliability. In the context of the software reliability of on-board train systems, ensuring good software reliability over time is all the more critical given the current density of rail traffic and the risk of accidents resulting from a software malfunction. LÄS MER

  3. 2. Network Anomaly Detection and Root Cause Analysis with Deep Generative Models

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Alexandros Patsanis; [2019]
    Nyckelord :;

    Sammanfattning : The project's objective is to detect network anomalies happening in a telecommunication network due to hardware malfunction or software defects after a vast upgrade on the network's system over a specific area, such as a city. The network's system generates statistical data at a 15-minute interval for different locations in the area of interest. LÄS MER

  4. 3. Obstructions monitoring in sewerage pipes.

    Master-uppsats, KTH/Mark- och vattenteknik

    Författare :Hélène Hector; [2016]
    Nyckelord :Obstruction; Sedimentation; Conditional cleaning operation; Prediction; Decision support tool; Excel;

    Sammanfattning : When a malfunction in the collection system occurs and a pipe overflows, the wastewater may be discharged in the natural environment. To avoid such pollution, nuisances to inhabitants living nearby and extra cost for the operator, there is an issue of detecting early enough the buildup of obstructions in sewerage pipes in order to react before the damage is done. LÄS MER

  5. 4. Self-organising Methods for Malfunction Prediction : A Volvo bus case study

    Master-uppsats, Högskolan i Halmstad/Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

    Författare :ANESTIS ZAGANIDIS; [2015]
    Nyckelord :malfunction prediction; COSMO; condition monitoring; fault prognostics;

    Sammanfattning : This thesis project investigates approaches for malfunction prediction using unsupervised, self-organized models, with an orientation on bus fleets. Certain bus malfunctions are not predictable with conventional methods and preventive replacements are too costly and time consuming. LÄS MER

  7. 5. Elkvalitéproblem vid varvtalsstyrd motordrift i industrimiljö

    M1-uppsats, KTH/Data- och elektroteknik

    Författare :Rick Gerkens; David Berg; [2013]
    Nyckelord :Harmonics; variable speed motor operations; frequency inverter control; power quality; power quality problems; harmonics modulation; Ramboll; Sandvik Mining; övertoner; varvtalsstyrd motordrift; frekvensstyrning; elkvalitè; elkvalitèproblem; modellering av övertoner; Ramböll; Sandvik Mining;

    Sammanfattning : Övertoner orsakade av varvtalsstyrda motordrifter ger problem i industrisystem. Syftet med studien är att identifiera problemen och ge rekommendationer för att undvika dem. Studien utfördes som examensjobb på KTH för konsultföretaget Ramböll. En litteraturstudie i ämnet kombinerades med elkvalitémätningar på drifter hos Sandvik Mining. LÄS MER