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    Wyświetlanie 1-13 z 13
    Tytuł:
    Computer vision based on Raspberry Pi system
    Autorzy:
    Abdulhamid, Mohanad
    Odondi, Otieno
    Al-Rawi, Muaayed
    Powiązania:
    https://bibliotekanauki.pl/articles/1837769.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Promocji Wiedzy
    Tematy:
    computer vision
    raspberry Pi system
    system wizyjny
    Raspberry Pi
    Opis:
    The paper focused on designing and developing a Raspberry Pi based system employing a camera which is able to detect and count objects within a target area. Python was the programming language of choice for this work. This is because it is a very powerful language, and it is compatible with the Pi. Besides, it lends itself to rapid application development and there are online communities that program Raspberry Pi computer using Python. The results show that the implemented system was able to detect different kinds of objects in a given image. The number of objects were also generated displayed by the system. Also the results show an average efficiency of 90.206 % was determined. The system is therefore seen to be highly reliable.
    Źródło:
    Applied Computer Science; 2020, 16, 4; 85-102
    1895-3735
    Pojawia się w:
    Applied Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A teaching stand for controlling building automation with Raspberry Pi
    Autorzy:
    Płocheć, Maciej
    Majcher, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/377502.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    building automation
    Raspberry Pi
    Opis:
    Building automation is a rapidly growing branch of electronics in recent years. This is due to the ever wider range of devices available on the market, as well as their decreasing prices. In addition to systems dedicated to the control of intelligent buildings such as KNX or LCN, new manufacturers are increasingly emerging to offer interesting solutions at an affordable price. As a rule, these devices are based on existing solutions, and individual manufacturers add new elements in hardware or software form. This paper presents a project of building automation controlled by Raspberry Pi. This microcomputer controls individual installations to provide functionality similar to that offered by dedicated systems.
    Źródło:
    Poznan University of Technology Academic Journals. Electrical Engineering; 2020, 105; 29-36
    1897-0737
    Pojawia się w:
    Poznan University of Technology Academic Journals. Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Crowd Size Estimation and Detecting Social Distancing using Raspberry Pi and OpenCV
    Autorzy:
    Milton, Davidson Kamala Dhas
    Velraj, Arun Ra
    Powiązania:
    https://bibliotekanauki.pl/articles/2200720.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Haar features
    human detection
    distance checking
    raspberry pi
    opencv
    Opis:
    In this covid19 pandemic the number of people gathering at public places and festivals are restricted and maintaining social distancing is practiced throughout the world. Managing the crowd is always a challenging task. It requires monitoring technology. In this paper, we develop a device that detects and provide human count and detects people who are not maintaining social distancing. The work depicted above was finished using a Raspberry Pi 3 board with OpenCV-Python. This method can effectively manage crowds.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 1; 19--24
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Economical methods for measuring road surface roughness
    Autorzy:
    Grabowski, D.
    Szczodrak, M.
    Czyżewski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/221297.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    image processing
    neural networks
    pothole detection
    Kinect
    Raspberry Pi
    Opis:
    Two low-cost methods of estimating the road surface condition are presented in the paper, the first one based on the use of accelerometers and the other on the analysis of images acquired from cameras installed in a vehicle. In the first method, miniature positioning and accelerometer sensors are used for evaluation of the road surface roughness. The device designed for installation in vehicles is composed of a GPS receiver and a multi-axis accelerometer. The measurement data were collected from recorded ride sessions taken place on diversified road surface roughness conditions and at varied vehicle speeds on each of examined road sections. The data were gathered for various vehicle body types and afterwards successful attempts were made in constructing the road surface classification employing the created algorithm. In turn, in the video method, a set of algorithms processing images from a depth camera and RGB cameras were created. A representative sample of the material to be analysed was obtained and a neural network model for classification of road defects was trained. The research has shown high effectiveness of applying the digital image processing to rejection of images of undamaged surface, exceeding 80%. Average effectiveness of identification of road defects amounted to 70%. The paper presents the methods of collecting and processing the data related to surface damage as well as the results of analyses and conclusions.
    Źródło:
    Metrology and Measurement Systems; 2018, 25, 3; 533-549
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of a Raspberry PI single-board computer for image acquisition and transmission
    Autorzy:
    Sieczkowski, K.
    Sondej, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/114628.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    Raspberry Pi
    single-board computer
    video monitoring
    image processing
    Opis:
    The article presents an analysis of the use of a single-board computer Raspberry PI for video acquisition and transmission. The article focuses on requirements necessary for the recorded image to be used for face analysis to identify facial expressions and microexpressions. The quality of the recorded video frames was verified for different resolutions and fps using PSNR (Peak Signal-to-Noise Ratio). Tests of CPU cores usage were also carried out for simultaneous recording and transmission of different types of video streams. The results show that the size of the effective image area depends on the resolution of recorded video stream. Increasing the frame rate for the given video resolution has a significant impact on the value of PSNR. And the resultant CPU usage, for the available resolutions and frame rates of the video recorded, in most cases does not exceed 15% of the total computing power of the CPU.
    Źródło:
    Measurement Automation Monitoring; 2017, 63, 5; 180-182
    2450-2855
    Pojawia się w:
    Measurement Automation Monitoring
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Practical Remarks on Power Consumption in WLAN Access Points
    Autorzy:
    Kowal, Michał
    Staniec, Kamil
    Powiązania:
    https://bibliotekanauki.pl/articles/227224.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    802.11n
    beacon
    power consumption
    Raspberry Pi3
    OpenWrt
    Opis:
    The article presents the power consumptions measurements performed for three wireless routers operating in IEEE 802.11n standard. A typical consumer-class device Asus RTAC66U was chosen, an operator-class Gateworks Laguna GW2387 and a router built based on the Raspberry Pi3 platform. The aim of experiments was to test the influence of the beacon interframe interval, a client association (joining) in the network and the transmission itself, on the lifetime of battery-powered devices. Theoretical calculations were also performed for the influence of the analyzed scenarios on the battery-powered devices.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 1; 173-178
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of ultrasonic distance sensors for measuring height as a tool in unmanned aerial vehicles with a stabilized position in the vertical plane
    Autorzy:
    Bilewski, M.
    Putynkowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/135446.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    UAV
    ultrasonic distance sensors
    height measurement
    arduino
    raspberry Pi
    netduino
    Opis:
    The paper presents a review of ultrasonic sensors. Attention is focused on the possibility of using such sensors to keep an unmanned aerial vehicle at a constant altitude above the surface. Such a task requires filtered and unfiltered signals, so that the ground level can be distinguished even when obstacles are present. Three selected sensors were tested. The possibility of connecting these sensors to external devices was also studied. The potential of the individual sensors and of a set of sensors is discussed. The study showed that the best solution is to use a set of three ultrasonic sensors. Alternatively, a sensor with both unfiltered and filtered measurement was proved to be an adequate option.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 46 (118); 17-21
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    One more conception of an embedded acoustic chirp modem for underwater communication
    Autorzy:
    Kurowski, A.
    Solarska, P.
    Dąbrowski, D.
    Loch, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/332703.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Akustyczne
    Tematy:
    chirp signals
    Raspberry Pi
    modulation
    synchronisation
    frames forming
    and symbol mapping
    Opis:
    In this paper we present a conception of an embedded acoustic modem dedicated to the underwater communication. The Raspberry Pi is used as a low cost hardware platform. The solution of the physical layer consists in modulation, synchronisation, frames forming, symbol mapping, etc. Specifically, the modulation is based upon linear and hyperbolic chirp signal generation. The synchronisation is based upon the correlation of received and transmitted signals. The performance of the communication is tested by the computer simulation. The simulation is realized by USB sound cards and a wire. In the simulation, transmitted signals are intentionally degradated by the additive white gaussian noise.
    Źródło:
    Hydroacoustics; 2015, 18; 103-112
    1642-1817
    Pojawia się w:
    Hydroacoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Embedded image processing on Raspberry Pi connectedto the industrial control system
    Autorzy:
    Hrbček, Jozef
    Bubeníková, Emília
    Powiązania:
    https://bibliotekanauki.pl/articles/2064796.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    image processing
    PLC
    measurement
    Raspberry Pi
    real-time
    embedded system
    POWERLINK
    Opis:
    This paper deals with the image processing from the camera for Raspberry Pi connected with real-time communication network to the control system (PLC). The low time delay for receiving and sending commands, data, etc. is very important in the automating production processes. This can be provided by industrial real-time network based on Ethernet. The Ethernet POWERLINK, which is supported on B&R PLCs, is one of them. It is a simple solution for a variety of applications because the POWERLINK is publicly available as the open source. Connecting the PLC and Raspberry Pi with Ethernet POWERLINK opens up many applications in industrial automation. For example, image data obtained using a camera attached to Raspberry Pi can be used to sense image of manufacturing processes and products and evaluate their quality in industrial automation. This article focuses on an image processing unit and the PLC system with CPU redundancy used in the industrial application. Vision systems are often used to improve products quality control, saving costs and time.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2019, 2, 1; 62--71
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of the Raspberry Pi 4 micro-controller for the conceptual design of the baby monitor
    Zastosowanie mikrokontrolera Raspberry Pi 4 do projektu koncepcyjnego niani elektronicznej
    Autorzy:
    Kowalski, Sławomir
    Radzik, Michał
    Sromek, Jakub
    Powiązania:
    https://bibliotekanauki.pl/articles/2130868.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowa Wyższa Szkoła Zawodowa w Nowym Sączu
    Tematy:
    Raspberry Pi 4
    electronic nanny
    python
    wireless communication
    niania elektroniczna
    komunikacja bezprzewodowa
    Opis:
    The subject of the work is a conceptual design of a baby monitor. The central control system for the system is the Raspberry Pi 4 platform. In the next stages, practical aspects related to the topic of work are discussed. Selected components of the system were presented, connection diagrams between individual components were developed and the assembly process of a fully functional system was presented. Then the source code of the program controlling the operation of the electronic system was characterized. In the last stage, the method of testing and the results of the performed functional tests of the complete system being the subject of the study were described.
    Przedmiotem pracy jest projekt koncepcyjny niani elektronicznej. Centralnym systemem sterowania systemem jest platforma Raspberry Pi 4.W kolejnych etapach omawiane są praktyczne aspekty związane z tematem pracy. Przedstawiono wybrane elementy systemu, opracowano schematy połączeń pomiędzy poszczególnymi elementami, a także proces montażu w pełni funkcjonalnego systemu. Następnie scharakteryzowano kod źródłowy programu sterującego pracą układu elektronicznego. W ostatnim etapie opisano metodę testowania i wyniki przeprowadzonych testów funkcjonalnych kompletnego systemu będącego przedmiotem badań.
    Źródło:
    Journal of Engineering, Energy and Informatics; 2021, 1; 43-52
    2720-4162
    2720-5541
    Pojawia się w:
    Journal of Engineering, Energy and Informatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Low-cost remote dosing system for carbon dioxide level control in the undercover cultivation
    Autorzy:
    Idziak, P.
    Waszak, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/101317.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    carbon dioxide level
    undercover tunnels
    microcomputer type Raspberry Pi
    remote control via mobile phone
    Opis:
    The article presents the possibility of using a cell phone to control the level of carbon dioxide in undercover tunnels and greenhouses. Studies show that increasing the level of carbon dioxide in the air under covers results in a significant increase in the yield of the crops produced. The proposed system is autonomous. Its essential element is the multimedia Raspberry Pi platform. Under the manufacturer’s assumptions, the Raspberry Pi is a microcomputer designed primarily for the operation of audio-visual equipment. It can also be used to build simple measurement systems and control systems such as the access control system. This article describes the basic features of the platform along with the extended modules. The proposed application is used to measure the CO2 content in the air in the cultivation tunnel. The system also measures temperature and relative humidity. The measured values are compared with the threshold values and the report is sent to the mobile phone selected by the user. The developed program reports on the values recognised as threshold ones. In response to the information received, the user may decide to remotely enable the increase of CO2 content in the air under cover. The motion sensor integrated with the system informs the user of the unauthorized entry into the controlled area. The latter element is considered a security element. While designing the system, a cost-minimisation principle of its adaptation was taken into account.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/1; 1343-1358
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Canny edge detection based real-time intelligent parking management system
    Autorzy:
    Trivedi, Janak
    Devi, Mandalapu Sarada
    Dhara, Dave
    Powiązania:
    https://bibliotekanauki.pl/articles/197804.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    Raspberry Pi
    parking
    edge detection
    Python
    real-time
    sensors
    parkowanie
    wykrywanie krawędzi
    Pyton
    czas rzeczywisty
    czujniki
    Opis:
    Real-time traffic monitoring and parking are very important aspects for a better social and economic system. Python-based Intelligent Parking Management System (IPMS) module using a USB camera and a canny edge detection method was developed. The current situation of real-time parking slot was simultaneously checked, both online and via a mobile application, with a message of Parking “Available” or “Not available” for 10 parking slots. In addition, at the time entering in parking module, gate open and at the time of exit parking module, the gate closes automatically using servomotor and sensors. Results are displayed in figures with the proposed method flow chart.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 106; 197-208
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using the Raspberry Pi microcomputers in STEM education in technically oriented high schools
    Autorzy:
    Major, Štěpán
    Hubálovská, Marie
    Wacławek, Maria
    Powiązania:
    https://bibliotekanauki.pl/articles/2175207.pdf
    Data publikacji:
    2021
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    STEM education
    project-based learning
    bending experiment
    Raspberry Pi
    pedagogical research
    edukacja STEM
    metoda projektu
    badania pedagogiczne
    Opis:
    The article deals with learning using the project-based method in STEM education. The article describes the use of ICT technologies, specifically Raspberry Pi microcomputers in bending experiment. The bending experiment was designed for students of technically oriented high schools. Pedagogical research was conducted to determine whether the knowledge and skills of students who have been educated by the project-based method in STEM education are more complex, more systematic and more permanent than the knowledge and skills of students taught by standard forms of teaching. The article presents the results of pedagogical research, which lasted for three years. The results confirm that project-based learning and using ICT in STEM education developed complex knowledge and skills in STEM education. Comprehensive knowledge and problem-solving skills are important for the sustainable development of technological education.
    Źródło:
    Chemistry-Didactics-Ecology-Metrology; 2021, 26, 1-2; 73--88
    2084-4506
    Pojawia się w:
    Chemistry-Didactics-Ecology-Metrology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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