Wyniki wyszukiwania - BazTech

1

Heart-rate Monitoring System Design and Analysis Using a Nios II Soft-core Processor

Lim C. K., Jambek A.B., Hashim U.

International Journal of Electronics and Telecommunications

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2016

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Vol. 62, No. 3

283--288

EN

The heart rate of a person is able to tell whether they are healthy. A heart-rate monitoring device is able to measure or record the heart rate of a person in real time, whether it is an electrocardiogram (ECG) or a photoplethysmogram (PPG). In this work, a microprocessor system loaded with a heart-rate monitoring algorithm is implemented. The microprocessor system is the Nios II processor system, which interfaces with an analogue-to-digital converter (ADC) and a pulse sensor. A beat-finding algorithm is used in the microprocessor system for heart rate measurement. An experiment is carried out to analyse the functionality of the microprocessor system loaded with the algorithm. The results show that the detected heart rate is in the range of the average human being’s heart rate. The signal flow within the microprocessor system is observed and analysed using SignalTap II from Quartus’ software. Based on a power analysis report, the proposed microprocessor system has a total power dissipation of around 218.26 mW.

2

Whirlpool SoPC Implementation : Hardware/Software Co-Design Example

Krawczyk K., Tomaszewicz P., Rawski M.

International Journal of Electronics and Telecommunications

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2012

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Vol, 58, No. 1

21-26

EN

The aim of this work was to design a System on Programmable Chip (SoPC), that implements the Whirlpool Hash Function (WHF) algorithm. An assumption of the project was to use an embedded soft-processor NIOS II controlling the whole system, which functionality was extended by a custom logic in order to improve the used algorithm efficiency. This paper presents the Whirlpool Hash Function realized in several SoPC configurations, which differ in implementation complexity and performance.

3

Development of the digital image data acquisition system for astronomical applications

Kwiatkowski M., Kasprowicz G., Późniak K., Romaniuk R., Wrochna G.

Electronics and Telecommunications Quarterly

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2008

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Vol. 54, No 3

253-274

EN

The paper describes a piece of a development process for a new generation of high performance, remote control, CCD camera system designed for astronomical applications. A completely new image acquisition system residing on a highly integrated PCBs was designed, manufactured, tested and commissioned. The design process lead through largely redundant PCB design and tests with implemented such features like NIOS, CCD emulator, and a number of open source software. The CCD sensor was positioned in a different way than previously, resulting in better performance of the astronomical video data acquisition system. The Software solutions for the camera and its remote control, as well as image data acquisition are based only on the open source platform. The camera supports both API V4L2 driver and INDI protocol. It will be replicated in 20 pieces and is designed for continuous on-line, wide angle observations of the sky in the Pi-of-the-Sky experiment. The full system, largely reduced in redundant functionalities, thus, with increased reliability, is now under production stage and will be soon implemented in real work conditions.camera was built using a low-noise, 4Mpixel CCD circuit by STA. The electronic circuit of the camera is highly parameterized and reconfigurable, as well as modular in comparison with the solution of first generation, due to application of open software solutions and FPGA circuit. New algorithms were implemented into the FPGA chip. There were used the speed USB2.0 interface, dedicated image processor, GigEth interface, SDRAM and FLASH memories, ARM926EJ-S ARM processor. Software solutions for the camera and its remote control, as well as image data acquisition are based only on the open source platform. The camera supports both API V4L2 driver and INDI protocol. It will be replicated in 20 pieces and is designed for continuous on-line, wide angle observations of the sky in the Pi-of-the-Sky experiment. The full system, largely reduced in redundant functionalities, thus, with increased reliability, is now under production stage and will be soon implemented in real work conditions.

4

Wbudowany system komputerowy jako sterownik płyt kontrolno-pomiarowych do sterowania LLRF w akceleratorze

Zabołotny W. M., Roszkowski P., Husejko M., Romaniuk R. S., Poźniak K. T., Kierzkowski K.

Elektronika : konstrukcje, technologie, zastosowania

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2005

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Vol. 46, nr 7

61-64

PL

Artykul zawiera ogolne rozwazania na temat przydatnosci wbudowanych systemow komputerowych do realizacji systemow sterowania w ptytach kontrolno-pomiarowych dla eksperymentow fizyki wysokiej energii. Oprocz tego przedstawiono opis prototypowego wbudowanego systemu komputerowego, umozliwiajacego sterowanie ptytami LLRF projektu TESLA. Stowa kluczowe:

EN

The paper presents general considerations regarding application of embedded computer systems as controllers for control & measurement boards in high energy physics experiments. The paper describes also an example implementation of the embedded control system used for LLRF boards in TESLA experiment.