Wyniki wyszukiwania - Biblioteka Nauki

1

Cosmic future of nuclear and particle physics

100%

Wrochna G.

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2005

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tom Vol. 50,suppl.3

25-31

EN

Abstract Astronomy and nuclear or particle physics are often considered as two opposite extremes, but in fact their common part is not empty and still enlarging. In this brief review we trace their common roots and we look for their common future. We predict that soon they will de facto merge in terms of phenomena being studied, theories used to describe them as well as experimental techniques. We gave several examples, devoting special attention to the "Pi of the Sky" project searching for optical flashes of astrophysical origin.

2

Development of the digital image data acquisition system for astronomical applications

45%

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

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2008

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tom 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.

3

Zdalnie sterowana kamera do zastosowań astronomicznych

45%

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

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tom Vol. 49, nr 10

42-48

PL

W artykule opisano nową generację wysokiej jakości, zdalnie sterowanych kamer CCD przeznaczonych do zastosowań astronomicznych. Kamerę zbudowano wykorzystując niskoszumny, 4 megapikselowy układ CCD firmy STA. System elektroniczny kamery jest w dużym stopniu parametryzowany i rekonfigurowalny oraz modułowy, w porównaniu z zamkniętym rozwiązaniem pierwszej generacji, wskutek zastosowania otwartego oprogramowania i układu FPGA, Altera Cyclone EP1C6. Do budowy kamery wykorzystano ponadto następujące zaawansowane układy elektroniczne: mikrokontroler CY7C68013a (rdzeń 8051) firmy Cypress, procesor obrazu AD9826 firmy Analog Devices, interfejs GigEth RTL8169s firmy Realtec, pamięć SDRAM AT45DB642 firmy Atmel, procesor typu CPU ARM926EJ-S AT91SAM9260 firmy ARM i Atmel. Rozwiązania programistyczne dla kamery i jej zdalnego sterowania oraz akwizycji danych obrazowych oparto wyłącznie na zasadach open source. Wykorzystano interfejsy obrazowe ISI i API V4L2, magistralę AMBA, AHB, protokół INDI. Kamera będzie powielona w kilkunastu egzemplarzach i zastosowana do ciągłej, szerokokątnej obserwacji nieba w programie badawczym Pi-of-the-Sky.

EN

The paper describes a new generation of high performance, remote control, CCD cameras designed for astronomical applications. The camera was built using a low-noise, 4Mpixel CCD circuit by STA. The electronic circuit of the camera is highly parameterized and reconfigurable, and modular in comparison with the closed solution of first generation, due to application of open software and FPGA circuit, Altera Cyclone EP1C6. There were used the following advanced electronic circuit in the camera system: microcontroller CY7C68013a (core 8051) by Cypress, image processor AD9826 by Analog Devices, GigEth interface RTL8169s by Realtec, memory SDRAM AT45DB642 by Atmel, CPU typr microprocessor ARM926EJ-S AT91SAM9260 by ARM and Atmel. Software solutions for the camera and its remote control, as well as image data acquisition are based only on the open source platform. There were used the following image interfaces ISI and API V4L2, data bus AMBA, AHB, INDI protocol. The camera will be replicated in 20 pieces and is designed for continuous on-line, wide angle observations of the sky in the research program Pi-of-the-Sky.