Essays about: "passive infrared"

Showing result 1 - 5 of 11 essays containing the words passive infrared.

  1. 1. Solutions for presence detection in an intercom door station

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Anton Bengtsson; Måns Andreasson; [2023]
    Keywords : presence detection; sensor technology; PIR; ultrasonic; radar; intercom; Technology and Engineering;

    Abstract : In this work, different solutions for human presence detection in a door intercom device are examined. The study was conducted at a company in Lund, Sweden. READ MORE

  3. 2. Microplastics in food webs- occurrence in Lake Vänern brown trout (Salmo trutta) and its main prey

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Hanna Nordström; [2023]
    Keywords : microplastic; freshwater; fish; brown trout; mikroplast; sötvatten; fisk; öring;

    Abstract : Over the past decade, research on microplastic pollution has gained significant attention. Research regarding microplastic occurrence in freshwater fish, however is still scarce. While possible pathways have been investigated, passive transfer via ingestion of prey, and possible bioaccumulation in different organs remains relatively unstudied. READ MORE

  4. 3. Labelling Motion Capture Markers Using Dynamic Graph Convolutional Neural Networks

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

    Author : Jacob Stuart; [2022]
    Keywords : ;

    Abstract : This thesis concerns labelling unlabelled motion capture (mocap) data using a Dynamic Graph Convolutional Neural Network (DGCNN) [46]. The most common type of motion-capture system, i.e. passive motion-capture, records the 3D position of multiple reflective markers using multiple infrared cameras with overlapping fields of view. READ MORE

  5. 4. Audio-based Motion Detection

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

    Author : Gopal Gomatam; Filip Dujmic; [2021]
    Keywords : sonar; motion detection; audio frequencies; audio processing; Technology and Engineering;

    Abstract : Motion detection is an essential technology and it has numerous use-cases, such as security tracking, automated door opening systems, and IP cameras. Commonly, passive infrared sensors or radio frequency sensors are used for motion detection. However, this thesis focuses on performing motion detection using existing hardware at audio frequencies. READ MORE

  6. 5. Microwave Radar Implementation in Outdoor Home Alarm Systems

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Isabelle Larsson; Gustaf von Plomgren; [2020]
    Keywords : radar; microwave radar; home alarm systems; home alarm; alarm; passive infrared; PIR; Technology and Engineering;

    Abstract : The use of short range microwave radars for motion sensing purposes are on the rise in multiple industries, as they are accurate, small in size and relatively cheap. The automotive industry, in particular, has pushed the development forward. Lately, the home alarm industry has also been glancing at the technology. READ MORE