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Tytuł:
My City Dashboard: Real-time Data Processing Platform for Smart Cities
Autorzy:
Usurelu, C.-C.
Pop, C.
Powiązania:
https://bibliotekanauki.pl/articles/307785.pdf
Data publikacji:
2017
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
big data
data analytics
real-time processing
smart cities
statistics
Opis:
In recent years, with the increasing popularity of IoT, the rapid growth of smartphone usage enabled by the increase adoption of Internet services and the continuously decreasing costs of these devices and services has led to a huge increase in the volume of data that governments can use in the context of smart city initiatives. The need for analytics is becoming a requirement for smart city projects such as city dashboards to provide citizens with an easy to understand overview of the city. As such, data should be analyzed, reduced and presented in such a way that citizens can easily understand various aspects of the city and use this information to increase quality of life. In this paper, we firstly present the context and the start of the design and implementation of proposed solution for real-time data processing in smart cities, mainly an analytics processing pipeline and a dashboard prototype for this solution, named My City Dashboard. We focus on high scalability and modularity of this platform.
Źródło:
Journal of Telecommunications and Information Technology; 2017, 1; 89-100
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Real-Time Acoustic Phenomena Modelling for Computer Games Audio Engine
Autorzy:
Miga, B.
Ziółko, B.
Powiązania:
https://bibliotekanauki.pl/articles/177439.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
sound reflection
transmission
attenuation
real-time audio processing
Opis:
This article presents an efficient method of modelling acoustic phenomena for real-time applications such as computer games. Simplified models of reflections, transmission, and medium attenuation are described along with assessments conducted by a professional sound designer. The article introduces representation of sound phenomena using digital filters for further digital audio processing.
Źródło:
Archives of Acoustics; 2015, 40, 2; 205-211
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Customizing audio fades with a view to real-time processing
Autorzy:
Lupşa-Tătaru, Lucian
Powiązania:
https://bibliotekanauki.pl/articles/118139.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
audio fade
fade-down
fade-up
real-time processing
zanikanie
wyciszanie
przetwarzanie w czasie rzeczywistym
Opis:
To a large extent, an audio fade is distinctly acknowledged as a strict increase (fade-up) or decrease (fade-down) of the volume of an audio content. In this broad context, the widely used fade-in and fade-out sound effects, applied to receive smooth transitions from and down to silence, respectively, appear to be restrictive. Taking into account the increasing demand for multimedia techniques adapted for real-time computing, the present investigation advances straightforward procedures intended for customizing the audio fade-up and fade-down profiles, having at hand well-proven techniques of shaping the fade-in and fade-out audio effects, suitable for fast computing.
Źródło:
Applied Computer Science; 2019, 15, 4; 16-26
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficient line detection method based on 2D convolution filter
Efektywna metoda wykrywania linii z wykorzystaniem konwolucyjnego filtru 2D
Autorzy:
Kowalski, Paweł
Tojza, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2070245.pdf
Data publikacji:
2021
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
image processing
real-time processing
Hough transform
straight line detection
przetwarzanie obrazu
przetwarzanie w czasie rzeczywistym
transformacja Hougha
wykrywanie prostych
Opis:
The article proposes an efficient line detection method using a 2D convolution filter. The proposed method was compared with the Hough transform, the most popular method of straight lines detection. The developed method is suitable for local detection of straight lines with a slope from -45˚ to 45˚. Also, it can be used for curve detection which shape is approximated with the short straight sections. The new method is characterized by a constant computational cost regardless of the number of set pixels. The convolution is performed using the logical conjunction and sum operations. Moreover, design of the developed filter and the method of filtration allows for parallelization. Due to constant computation cost, the new method is suitable for implementation in the hardware structure of real-time image processing systems.
W artykule zaproponowano efektywną metodę wykrywania prostych z wykorzystaniem dwuwymiarowego filtru konwolucyjnego. Zaproponowana metoda została porównana z transformatą Hough, najpopularniejszą metodą wykrywania linii prostych. Opracowana metoda pozwala na wykrywanie linii prostych o nachyleniu od -45˚ to 45˚. Może również zostać wykorzystana do wykrywania krzywych, których kształt jest aproksymowany za pomocą krótkich prostych odcinków. Zaproponowana metoda charakteryzuje się stałym kosztem obliczeniowym, niezależnym od liczby pikseli. Splot wykonywany jest z wykorzystaniem logicznej koniunkcji oraz sumowania. Ponadto konstrukcja opracowanego filtru oraz zastosowana metoda filtracji pozwala na zrównoleglenie. Ze względu na stały koszt obliczeniowy, zaproponowana metoda nadaje się do implementacji w strukturze sprzętowej systemów przetwarzania obrazu w czasie rzeczywistym.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2021, 11, 4; 22--27
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skalowalny algorytm estymacji ruchu dla systemów rozproszonych
A scalable motion estimation algorithm for distributed systems
Autorzy:
Konieczny, J.
Łuczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/154045.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
algorytm skalowalny
estymacja ruchu
systemy rozproszone
przetwarzanie w czasie rzeczywistym
scalable algorithm
motion estimation
distributed systems
real-time processing
Opis:
W pracy zaprezentowano autorski algorytm umożliwiający realizację procesu estymacji ruchu w czasie rzeczywistym przy wykorzystaniu systemów rozproszonych. Jest to algorytm należący do grupy tzw. szybkich algorytmów estymacji ruchu i umożliwia estymację ruchu z rozdzielczością poniżej jednego okresu próbkowania. Zaproponowany algorytm jest skalowalny i posiada budowę modułową, umożliwia elastyczne dostosowanie do rozmiaru układu oraz udostępnia mechanizm kontroli liczby cykli zegara niezbędnych do estymacji ruchu. W rezultacie możliwe jest dostosowanie częstotliwości zegara do możliwości układu przy zapewnieniu przetwarzania w czasie rzeczywistym.
In this paper a novel scalable algorithm for real-time motion estimation dedicated for distributed systems is presented. The proposed algorithm has modular structure and provides ability to flexibly adjust the global clock-rate required for real-time processing. This is achieved using hierarchical structure of the algorithm, which assumes division of the whole motion estimation process into independent processing stages (Figs. 1, 3, 4) and introducing special mechanism for controlling the allowed number of computation cycles. The algorithm modularity provides additional profits like ability to choose various methods for each processing stage independently and scalability of the circuit structure resulting in more efficient hardware implementation. Flexible clock-rate adjustment enables real-time processing with various types of computational platforms, with special regards to distributed systems consisting of many low-performance units. An example of scalable performance of the algorithm in distributed systems is presented. In order to increase the image resolution in real-time processing the processed image is shared between many processing units (Fig. 5). An exemplary system used for evaluation was created using Digilent "Starter Boards" with Xilinx Spartan-3 XC3S1000 FPGA circuits connected with NOC (Network On Chip) (Fig. 6). In the presented implementation six Spartan-3 circuits were able to estimate motion vectors with half-pel accuracy in real-time for HD resolution (1920x1080) video sequence with 25 frames per second.
Źródło:
Pomiary Automatyka Kontrola; 2009, R. 55, nr 8, 8; 684-686
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implementing the fade-in audio effect for real-time computing
Autorzy:
Lupşa-Tătaru, Lucian
Powiązania:
https://bibliotekanauki.pl/articles/1395587.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
audio effects
audio fade-in
real-time processing
HTML5
web apps
efekt dźwiękowy
wprowadzanie dźwięku
przetwarzanie w czasie rzeczywistym
internetowe aplikacje
Opis:
Audio fading is performed in order to smoothly modify over time the level of an audio signal. In particular, the fade-in audio effect designates a gradually increase in the audio volume, starting from silence. In practice, audio fading is mostly carried out within audio editors i.e. in off-line mode by employing various transcendental functions to enforce the fade profile. Taking into account the increasing demand for interactive media services requiring real-time audio processing, the present approach advances an effective method of constructing the audio fade-in shape with a view to real-time computing. The paper encompasses plain and straightforward implementations in pure JavaScript, prepared precisely to validate the method of audio volume processing proposed here.
Źródło:
Applied Computer Science; 2019, 15, 2; 5-18
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of an autonomous Global Navigation Satellite System ground station and its calibration for monitoring of local ionospheric perturbations
Autorzy:
Galas, R.
Čokrlić, M.
Powiązania:
https://bibliotekanauki.pl/articles/135456.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
local ionospheric perturbations
scintillations
single autonomous GNSS monitoring station
continuously monitoring GNSS ground systems
autonomous power management
real-time processing
hardware calibration
Opis:
A state-of-the-art monitoring global navigation satellite system (GNSS) system has been originally designed and developed for various positioning and atmosphere-sensing purposes by the authors and updated to fulfil the challenging requirements for monitoring of ionospheric perturbations. The paper discusses various scientific and technically challenging issues, such as the requirement for an autonomous operating ground GNSS station and how this can be fulfilled. Basic algorithms for monitoring of local ionospheric perturbations with GNSS receivers are described. The algorithms require that inter-frequency hardware biases be known. Although the satellite transmitter biases can be obtain from the IGS services, the user takes responsibility for the estimation of frequency dependent receiver hardware biases and for the control of their variations. The instrumental signal delays are important for timing applications and GNSS monitoring of the ionosphere and are also required for recovering of the integer carrier-phase ambiguities. The paper presents an algorithm for calibration of inter-frequency biases of global positioning system (GPS) receivers and validates the first set of results.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 45 (117); 54-59
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Initial analysis of the tracking performance of the GOOSE GNSS Software-Defined Receiver
Autorzy:
Galas, Roman
Kunzi, Florian
Adolfs, Marjolijn
Overbeck, Matthias
Felber, Wolfgang
Powiązania:
https://bibliotekanauki.pl/articles/1819198.pdf
Data publikacji:
2020
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
local ionospheric perturbations
scintillations
single autonomous GNSS monitoring station
continuously monitoring GNSS ground systems
autonomous power management
real-time processing
software-defined receiver
Opis:
The GOOSE (GNSS Receiver with open software interface) Software-Defined Receiver has been developed at the Fraunhofer Institute for Integrated Circuits (IIS) in Nürnberg, Germany. The main motivation for the development of this platform was to control the receiver at all stages, from digital signal processing to the PVT domain, and to enable controlled feedback to the hardware. Besides having access to all raw data including correlation values, the GOOSE receiver also enables for example tight- or ultra-tight integration with an inertial navigation system or other dead reckoning systems, as these kinds of architectures require access to the acquisition and tracking loops. In this paper, the tracking performance of the GOOSE platform was evaluated and compared to a reference receiver (Septentrio PolaRx5S). Several long data sessions were recorded on a “zero baseline” in which both receivers used the same precise geodetic antenna that was also developed at Fraunhofer IIS. The measurements were performed in a harsh environment (obstructions, multipath, possible interferences), as well as on a site with an unobstructed sky view. Quality and performance analyses were performed using raw measurements (in the domain of primary observables) of three civil GPS signals: L1CA, L2CM, and L5. The data were processed using the “zeroEdit” module of the TUB-NavSolutions academic software for education and research. The quality of the raw observables and tracking performance were described by the following parameters: number of cycle slips detected, number of un-correctable cycle slips, number of loss of locks of the signals, number of single epoch data gaps, and the length of carrier phase arcs. The presentation is illustrated with some numerical examples.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2020, 63 (135); 113-120
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cloud-based sentiment analysis for measuring customer satisfaction in the Moroccan banking sector using Naïve Bayes and Stanford NLP
Autorzy:
Riadsolh, Anouar
Lasri, Imane
ElBelkacemi, Mourad
Powiązania:
https://bibliotekanauki.pl/articles/2141901.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
Big Data processing
Apache Spark
Apache Kafka
real-time text processing
sentiment analysis
Stanford core NLP
Naïve Bayes classifier
Opis:
In a world where every day we produce 2.5 quintillion bytes of data, sentiment analysis has been a key for making sense of that data. However, to process huge text data in real-time requires building a data processing pipeline in order to minimize the latency to process data streams. In this paper, we explain and evaluate our proposed real-time customer’ sentiment analysis pipeline on the Moroccan banking sector through data from the web and social network using open-source big data tools such as data ingestion using Apache Kafka, In-memory data processing using Apache Spark, Apache HBase for storing tweets and the satisfaction indicator, and ElasticSearch and Kibana for visualization then NodeJS for building a web application. The performance evaluation of Naïve Bayesian model show that for French Tweets the accuracy has reached 76.19% while for English Tweets the result was unsatisfactory and the resulting accuracy is 56%. To remedy this problem, we used the Stanford core NLP which, for English Tweets, reaches a precision of 80.7%.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2020, 14, 4; 64-71
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implementacja obliczania map dysparycji w czasie rzeczywistym dla strumienia wizyjnego 3D zrealizowana w układzie FPGA
Real-time FPGA implementation of disparity map calculation for a 3D video stream
Autorzy:
Kryjak, T.
Komorkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/157765.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
dysparycja
SAD
ZSAD
układy FPGA
3D
systemy stereowizyjne
przetwarzanie obrazów
FPGA devices
disparity
stereovision
real time image processing
Opis:
W artykule opisano system umożliwiający odbieranie i przetwarzanie strumienia wideo w technologii 3D transmitowanego w standardzie HDMI (tryb side by side), co pozwala na współpracę z dostępnymi na rynku kamerami 3D. Zaproponowana architektura umożliwia implementację popularnych metod obliczania map dysparycji: m. in. SAD oraz opartych o transformatę Censusa, realizację sprawdzenia symetryczności mapy oraz filtrację medianową poprawiającą jakość wyników. W pracy omówiono budowę każdego z modułów, użycie zasobów FPGA, zużycie mocy, a także przykładowe rezultaty działania na płycie ewaluacyjnej VC707 z układem Virtex 7.
In the paper a system for acquisition and processing of a 3D video stream is presented. It can work with 3D HDMI cameras available on the market. In Section 2 the basic concepts of stereovision systems are described [1]. In Section 3 three distance metrics, SAD [4], ZSAD and Census [5], used for correspondence matching are discussed. Evaluation of the matching process on the Middlebury dataset [2] is also presented. The best results were obtained for the SAD and ZSAD methods and greyscale images. In Table 1 there are shown three best configurations. Figure 1 illustrates the obtained disparity maps. A description of the hardware implementation is given in Section 4. The block diagram of the system is presented in Figure 2. The proposed solution is able to process images transmitted in side by side mode, to compute two disparity maps (left to right and right to left, method from [4]), to use SAD or ZSAD cost function, to check maps consistency and execute median filtering for final image processing. The described module is highly parameterizable: different cost functions, window sizes and disparity range can be used, image size and median filtering size can be adjusted. FPGA resource utilization is presented in Table 2. A picture of the working system is shown in Figure 3 (1280 x 720 @60 fps, real-time video-stream processing). The proposed module can be used for video surveillance, pedestrian collision avoidance systems or in autonomous vehicles.
Źródło:
Pomiary Automatyka Kontrola; 2013, R. 59, nr 8, 8; 748-750
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection of driver sleepiness and warning the driver in real-time using image processing and machine learning techniques
Autorzy:
Umut, I.
Aki, O.
Uçar, E.
Öztürk, L.
Powiązania:
https://bibliotekanauki.pl/articles/102474.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
driver
sleepiness
real time
image processing
machine learning
Opis:
The aim of this study is to design and implement a system that detect driver sleepiness and warn driver in real-time using image processing and machine learning techniques.Viola-Jones detector was used for segmenting face and eye images from the camera-acquired driver video. Left and right eye images were combined into a single image. Thus, an image was obtained in minimum dimensions containing both eyes. Features of these images were extracted by using Gabor filters. These features were used to classifying images for open and closed eyes. Five machine learning algorithms were evaluated with four volunteer’s eye image data set obtained from driving simulator. Nearest neighbor IBk algorithm has highest accuracy by 94.76% while J48 decision tree algorithm has fastest classification speed with 91.98% accuracy. J48 decision tree algorithm was recommended for real time running. PERCLOS the ratio of number of closed eyes in one minute period and CLOSDUR the duration of closed eyes were calculated. The driver is warned with the first level alarm when the PERCLOS value is 0.15 or above, and with second level alarm when it is 0.3 or above. In addition, when it is detected that the eyes remain closed for two seconds, the driver is also warned by the second level alarm regardless of the PERCLOS value. Designed and developed real-time application can able to detect driver sleepiness with 24 FPS image processing speed and 90% real time classification accuracy. Driver sleepiness were able to detect and driver was warned successfully in real time when sleepiness level of driver is achieved the defined threshold values.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 2; 95-102
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multichannel readout system for registration of electronic system temperature response with high temporal resolution
Autorzy:
Janicki, M.
Kulesza, Z.
Pietrzak, P.
Napieralski, A.
Powiązania:
https://bibliotekanauki.pl/articles/397885.pdf
Data publikacji:
2010
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
termiczna charakterystyka systemów elektronicznych
rzeczywisty czas równoległych pomiarów przetwarzania danych
thermal characterization of electronic systems
real time parallel measurement data processing
Opis:
This paper presents the design and the practical realization of a measurement system dedicated to fast real-time multichannel registration of electronic system thermal response. The response is registered in parallel channels with a frequency up to 1 MHz- Such a high frequency is required for the thermal identification of electronic systems. The designed circuit is used here for the investigation of a thermal test ASIC. The presented solution can be extended for a different number of measurement channels and adapted for other types of sensors.
Źródło:
International Journal of Microelectronics and Computer Science; 2010, 1, 3; 305-310
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
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:
Terrestrial and extraterrestrial drillings in the 21st century. Research challenges and the way to satisfy them by means of a new research infrastructure at AGH-UST
Autorzy:
Kowalski, Tomasz
Skrzypaszek, Krzysztof
Teper, Wojciech
Toczek, Przemysław
Złotkowski, Albert
Powiązania:
https://bibliotekanauki.pl/articles/2052216.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
drillings
space drilling
lunar regolith
drilling test
data acquisition
data processing
real time condition
Opis:
Knowing the impact of technical solutions on the drilling process is a very important element in the process of the exploration of new fossil fuel deposits. Drilling equipment used during drilling operations is highly liable to all conditions which prevail in the well bore. The study of the impact of drilling fluid flow with various rheological properties on the strength and work of drill stem components will allow to search for the best solutions. The article describes the design and construction of two boreholes, fill up with 9 5/8" (244.5 mm) and 24" (609.6 mm) casings. The designed boreholes will be a joint part of the drilling laboratory in the S-1 building at AGH-UST in Krakow. Research The research described above can be done in openholes and implemented at the beginning of the design process for drilling works in new deposits. In addition, it will provide an opportunity for all engineers to get to know the behavior of components operating in an open hole.
Źródło:
AGH Drilling, Oil, Gas; 2020, 37, 3; 5-11
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Real-time data acquisition based on common use interfaces at Matlab and embedded system
Autorzy:
Sieczkowski, K.
Sondej, T.
Powiązania:
https://bibliotekanauki.pl/articles/397757.pdf
Data publikacji:
2016
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
data acquisition
real-time
Matlab
serial communication
data processing
akwizycja danych
czas rzeczywisty
komunikacja szeregowa
przetwarzanie danych
Opis:
The article presents the tests of method for real-time data acquisition from embedded systems using Matlab software. Data transmission is performed using several common use interfaces: UART/USB, Ethernet, Bluetooth and WiFi. The article includes a description of a protocol, measuring station based on two types of embedded system, implementing the proposed protocol, as well as a description of the algorithm of test programs. Experimental studies were performed using a STM32F4 microcontroller and Raspberry PI-3 single-board computer. Executed tests related: (1) the average transmission time, (2) the effective throughput of a full cycle of data exchange, (3), the required working time of Matlab to handle the transmission, and (4) the stability of the program timer used for periodic data transmission calls. Experimental studies have shown that it is possible efficient data exchange between the embedded system and Matlab while maintaining the real-time requirements.
Źródło:
International Journal of Microelectronics and Computer Science; 2016, 7, 3; 100-108
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 21

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