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Showing result 1 - 5 of 8 essays matching the above criteria.

  1. 1. Real-time Sound Analysis to Count Opening Cycles of Automatic Doors

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Teodor Renman; Charlie Ringström; [2023]
    Keywords : Sound analysis; signal processing; event detection; MFCC; real-time; automatic door; embedded programming; stm32; microcontroller; Technology and Engineering;

    Abstract : Counting opening cycles on an automatic sliding door is of great interest for a company manufacturing doors, such as ASSA Abloy. These metrics could be used for consumer statistics or for door diagnostics. Counting opening cycles is seemingly trivial when there is access to the door’s internal diagnostics or having adequate sensors. READ MORE

  3. 2. Identifying Piggybacking with Radar and Neural Networks

    University essay from Lunds universitet/Matematik LTH

    Author : Joel Sigurdsson; Hannes Olsson; [2022]
    Keywords : neural networks; classification; radar; access control; artificial; recurrent; convolutional; point clouds; cnn; ann; lstm; rnn; optimization; gradient descent; camera; piggybacking; tailgating; fmcw; pointnet; Mathematics and Statistics;

    Abstract : A common problem in access control is piggybacking. This is when a person without authorized access sneaks closely behind another with access through a door. This thesis seeks to answer whether using radar is a viable solution when attempting to detect piggybacking. READ MORE

  4. 3. Strategic passenger-oriented timetable design : Long-term timetable designs with minimised passenger inconvenience

    University essay from KTH/Transportplanering

    Author : Yari de Graaf; [2021]
    Keywords : ;

    Abstract : Timetable development and design is a complex process that is crucial for safe and efficient railway operations. The combination of steel wheels and steel rails makes it possible to create trains and to transport many vehicles, thus passengers and freight, at the same time, but it also results in longer braking distances. READ MORE

  5. 4. HfO2 and ITO Resistive Random-Access Memory

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Mattias Åstrand; [2020]
    Keywords : RRAM; Resistive switching; HfO2; ITO; Physics and Astronomy;

    Abstract : The purpose of this work is of evaluating the choice of HfO2 and ITO as the dielectric and the top electrode in high performance resistive random-access memory (RRAM), respectively. The study is twofold, as it quantifies performance according to standard figures of merit for this technology, as well as provides insight into the physics of current conduction for this material choice. READ MORE

  6. 5. Assessing the impact of floating-point precision in plasma simulations : A study of precision reduction and precisionrefinement in iPIC3D

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Svante Sörberg; Simon Tran Florén; [2019]
    Keywords : ;

    Abstract : This thesis explores how the precision of floating-point numbers affects the high-performance, implicit particle-in-cell plasma simulation software iPIC3D. We investigate whether a version of iPIC3D, modified to use floatingpoint numbers in lower precision than the current 64 bit double-precision, could yield accurate simulations in comparison with the current version. READ MORE