Sökning: "Sensor faults"

Visar resultat 16 - 20 av 43 uppsatser innehållade orden Sensor faults.

  1. 16. Diagnostics of Intermittent Errors

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Niklas Lindborg; [2021]
    Nyckelord :Intermittent errors; diagnostics; knowledge gap; fault isolation; Intermittenta fel; diagnostik; kunskapslucka; felisolering;

    Sammanfattning : Intermittent faults/errors are infamous for being among the most challenging errors to diagnose. It is estimated that more than 80% of the total number of errors in real systems are intermittent errors. Previous research on intermittent errors suggests that they are the prelude to permanent faults. LÄS MER

  3. 17. Fault Clustering With Unsupervised Learning Using a Modified Gaussian Mixture Model and Expectation Maximization

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Kevin Lindström; [2021]
    Nyckelord :;

    Sammanfattning : When a fault is detected in the engine, the check engine light will come on. After that, it is often up to the mechanic to diagnose the engine fault. Manual fault classification by a mechanic can be time-consuming and expensive. LÄS MER

  4. 18. Automatic Generation of Descriptive Features for Predicting Vehicle Faults

    Master-uppsats, Högskolan i Halmstad/CAISR Centrum för tillämpade intelligenta system (IS-lab)

    Författare :Vandan Revanur; Ayodeji Ayibiowu; [2020]
    Nyckelord :Dimensionality Reduction; Autoencoder; Artificial Neural Network; Embeddings; Powertrain; Predictive Maintenance;

    Sammanfattning : Predictive Maintenance (PM) has been increasingly adopted in the Automotive industry, in the recent decades along with conventional approaches such as the Preventive Maintenance and Diagnostic/Corrective Maintenance, since it provides many advantages to estimate the failure before the actual occurrence proactively, and also being adaptive to the present status of the vehicle, in turn allowing flexible maintenance schedules for efficient repair or replacing of faulty components. PM necessitates the storage and analysis of large amounts of sensor data. LÄS MER

  5. 19. Risk Management in Medical Devices: Hazard Identificationand Verification of Mitigation Controls

    Master-uppsats, KTH/Medicinteknik och hälsosystem

    Författare :Gislé Segura Roca; [2020]
    Nyckelord :;

    Sammanfattning : During this project, the risk management of a medical device under development that deals with drug administration has been done. The aim of the project is to evaluate if part of the device is safe according to the current regulations in Sweden. LÄS MER

  7. 20. Sensor fusion and fault diagnosticsin non-linear dynamical systems.

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

    Författare :Albin Nilsson; [2020]
    Nyckelord :Fault detection and isolation; FDI; sensor fusion; nonlinear; four wheel drive; vehicle; kinematics; kalman filter; KF; EKF; parity relations;

    Sammanfattning : Sensors are highly essential components in most modern control systems and are used in increasingly complex ways to improve system precision and reliability. Since they are generally susceptible to faults it is common to perform on-line fault diagnostics on sensor data to verify nominal behavior. LÄS MER