Wyniki wyszukiwania - Biblioteka Nauki

1

Model of a sliding gate controlled by a PLC driver

100%

Majcher J.

Poznan University of Technology Academic Journals. Electrical Engineering

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2019

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tom No. 99

191--199

EN

Due to low costs, PLC controllers are used not only in technological processes but also in everyday life. The article presents the possibility of using a PLC controller to control the operation of a sliding gate. For this purpose, a design was created and a sliding gate model made controlled with a Siemens S7-1200 PLC controller. This model is used to develop various gate control algorithms, especially for appropriate gate protection against crushing or uncontrolled closing. In addition, this model is connected via the Internet to a stand equipped with the SCADA application. The iFix 5.8 PL application was used to visualise the operation of the door, which, by means of a communication driver, allows the elevator operation to be controlled remotely. In addition, elements are shown in a graphic way, whereby it is possible to assess the position of the gate.

2

The use of an electroseparator with bifilar winding for extracting germ from crushed rape seed

100%

Majcher J.

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tom R. 96, nr 9

71--73

EN

The paper presents the results of tests using the electroseparator for extracting the hull from crushed rape seeds. For this purpose, a prototype electroseparator was built that uses a bifilar winding in its construction. The winding is wound on a rotating drum and is supplied with a high DC voltage. The conducted research proves that there are differences in the efficiency of hull and germ separation up to 40% with suitably selected operating parameters of the electroseparator and appropriate parameters of the particulate material.

PL

W pracy przedstawiono wyniki badań elektroseparatora do wydzielania łupiny z rozdrobnionych nasion rzepaku. W tym celu został zbudowany elektroseparator z uzwojeniem bifilarnym. Uzwojenie to nawinięte jest na obracający się bęben zasilany wysokim napięciem. Badania dowiodły różnice w sprawności separacji łupiny i zarodka. - Wykorzystanie elektroseparatora z uzwojeniem bifilarnym do wydzielania zarodka z rozdrobnionych nasion rzepaku.

3

The method of determining seed moisture based on the signal generated by the piezoelectric plate

63%

Boguta A. , Majcher J.

Przegląd Elektrotechniczny

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2021

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tom R. 97, nr 1

125--127

EN

The paper presents research on determining the moisture content of various species of seeds based on the shape of the signal generated by the piezoelectric plate when hitting the seeds against it. For this purpose, a measuring stand was made on which the tests were carried out. The studies used different seed species with a near-spherical shape to eliminate the influence of the grain's impact on the plate. Based on the obtained signal waveforms, an algorithm was proposed with which the voltage rise coefficient on the piezoelectric transducer was calculated.

PL

W pracy przedstawiono badania dotyczące określania wilgotności różnych gatunków nasion w oparciu o kształt sygnału napięciowego generowanego przez płytę piezoelektryczną przy uderzeniu nasion. W tym celu wykonano stanowisko pomiarowe, na którym zostały przeprowadzone testy. W badaniach wykorzystano różne gatunki nasion o kształcie zbliżonym do sferycznego, aby wyeliminować wpływ kształtu nasion na wyniki pomiarów. Na podstawie uzyskanych krzywych sygnału zaproponowano algorytm, w którym obliczono współczynnik wzrostu napięcia na przetworniku piezoelektrycznym.

4

A teaching stand for controlling building automation with Raspberry Pi

63%

Płocheć M. , Majcher J.

Poznan University of Technology Academic Journals. Electrical Engineering

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2020

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tom No. 105

29--36

EN

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.

5

Electromagnetic compatibility of selected elements of building automation

51%

Goleman R. , Majcher J. , Bańka K.

Przegląd Elektrotechniczny

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2023

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tom R. 99, nr 5

49--52

EN

The article presents the results of electromagnetic compatibility tests of selected building automation devices. Elements of bus and wireless systems were tested. Electromagnetic compatibility measurements were carried out in accordance with EN 55014. Tests were performed for radiated disturbance emissions from equipment in the GTEM 1000 chamber in the frequency range from 30 kHz to 1 GHz and conducted disturbances in the frequency range from 150 kHz to 30 MHz.

PL

W artykule przedstawiono wyniki badań kompatybilności elektromagnetycznej wybranych urządzeń automatyki budynkowej. Przetestowano elementy systemów magistralowych i bezprzewodowych. Pomiary kompatybilności elektromagnetycznej zostały wykonane zgodnie z normą EN 55014. Badania przeprowadzono dla emisji zaburzeń promieniowanych przez urządzenia w komorze GTEM 1000 w zakresie częstotliwości od 30 kHz do 1 GHz i zaburzeń przewodzonych w zakresie częstotliwości od 150 kHz do 30 MHz.