Sökning: "Avståndsmätning"

Visar resultat 1 - 5 av 29 uppsatser innehållade ordet Avståndsmätning.

1. 1. Machinery Health Indicator Construction using Multi-objective Genetic Algorithm Optimization of a Feed-forward Neural Network based on Distance

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

   Författare :Jacob Nyman; [2021]
   Nyckelord :Prognostics; Health Indicator Construction; Remaining Useful Life Prediction; Multi-objective Optimization; Distance; Prognostik; Hälsoindikatorkonstruktion; Återstående Livslängd; Multiobjektiv Optimering; Avstånd;

   Sammanfattning : Assessment of machine health and prediction of future failures are critical for maintenance decisions. Many of the existing methods use unsupervised techniques to construct health indicators by measuring the disparity between the current state and either the healthy or the faulty states of the system. LÄS MER

3. 2. PreCro : A Pedestrian Crossing Robot

   Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :EBBA HEDBERG; LINNEA SUNDIN; [2020]
   Nyckelord :mechatronics; Pixy2; vision sensor; magnetic encoders; pedestrian crossing; mekatronik; Pixy2; bildsensor; magnetisk givare; övergångsställe;

   Sammanfattning : For people who suffer from visual impairment, getting around in traffic can be a great struggle. The robot PeCro, short for Pedestrian Crossing, was created as an aid for these people to use at pedestrian crossings equipped with traffic lights. LÄS MER

4. 3. Relay Attack Resistant Passive Keyless Entry : Securing PKE Systems with Immobility Detection

   Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :ABEL VALKO; [2020]
   Nyckelord :Passive Keyless Entry; Relay Attack; Mafia Fraud; Access Control; Mechatronics; Nyckellös System; åtkomstkontroll; Relay Attack; IT-säkerhet; Mekatronik;

   Sammanfattning : A significant security risk of modern vehicles is their vulnerability to relay attacks, due to challenge-response methods, such as those employed in Passive Keyless Entry (PKE) used by most commercial cars, being inherently exposed. This class of attacks are where communication between a vehicle and its key is relayed by an attacker over long range - thereby bypassing any encryption and unlocking the vehicle without requiring direct access to the key. LÄS MER

5. 4. Techniques for Improving Weldability and Testing of Weld-bonded Joints

   Master-uppsats, KTH/Maskinkonstruktion (Inst.)

   Författare :Mattias Högsäter Myhr; [2020]
   Nyckelord :Adhesives; Automotive industry; Resistance Spot Welding; RSW; Weldability; Weld-bonding; Welding parameters; Fordonsindustri; Limning; Limpunktsvetsning; Motståndssvetsning; Punktsvetsning; Svetsbarhet; Svetsparametrar;

   Sammanfattning : Increased understanding of improving the weld-bonding process is essential in order for the automotive industry to constantly develop their designs and production processes for the energy-efficient vehicles of the future. The joining method of weld-bonding, a hybrid method of adhesive joining and resistance spot welding, has introduced new challenges in the manufacturing and design of auto bodies. LÄS MER

7. 5. Modellering och analys av avståndsmätare baserad på Time-to-Digital Converter

   M1-uppsats, Karlstads universitet/Avdelningen för fysik och elektroteknik

   Författare :Johan Sundelin; [2019]
   Nyckelord :Time to digital converter; Time of flight; rangefinder; TDC; Avståndsmätare; Time to digital converter;

   Sammanfattning : This bachelor thesis has been performed at Saab Dynamics AB in Karlskoga, with the purpose to design simulation models and analyze the technology study for distance measurement based on Time Of Flight (TOF) -principle. The distance measurement is implemented by short laser pulses and Time-to-Digital Converter (TDC). LÄS MER