Raspberry PI-l põhinev õppevahend vooluringide uurimiseks
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Kuupäev
2021
Kättesaadav alates
09.09.2021
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Elektrotehnika õppimisel on oluline, et kindlasti oleksid selged just põhitõed. See
tähendab, et elektrotehnika huviline võiks teada, mida tähendab oomiseadus, kuidas
elektrivool vooluringi erinevates harudes liigub ning mis juhtub, kui tarbijad on rööp-,
jada- või segaühenduses.
Et lihtsustada vooluringidest arusaamist, on töö autor võtnud eesmärgiks koostada
seadeldis, millega oleks võimalik uurida ja õppida vooluringiseaduseid. Seadeldis
võimaldab kasutajal muuta vooluringi olemust, kuvades ekraanil vooluringi pinged, voolud
ja kogutakistuse.
Koostati vooluring, mis koosneb üheksast takistist ja kolmeteistkümnest lülitist, millede
lülitamisel on võimalik takisteid vooluringist eemaldada lisada. Seadme valmistamiseks
kasutati Raspberry PI-d ning kahte MCP3008 analoog- digitaalmuundurit, milledega on
võimalik mõõta pingelangusid takistitel.
Koostati ja prinditi 3D mudel, kuhu saab kasutatavad komponendid paigutada. Kirjutati
kood, mis kuvaks väärtused ekraanil. Viimaseks paigutati seadmed 3D prinditud karpi,
joodeti kokku vooluring ning katsetati, kas seadeldis kuvab ekraanil korrektsed tulemused.
In Electrical studies, it is important that the fundamental laws are clear. It means, that one studying Electrics, should know what is Ohm’s law, how current is divided in different parts of a circuit and what is the difference between parallel, series or both circuits. To make it easier to understand circuits, the author of this thesis has an aim to devise and assemble a device that would help to study laws of electrical circuits. The device would allow the user to modify the circuit and display circuits voltages, currents and resistance on a screen. A circuit was created that consists of nine resistors and thirteen switches, which allow the user to add or remove resistors from the circuit. Raspberry PI was used as the processing unit for the device and two MCP3008 analogue- digitalconverters, to measure voltagedrops on each resistor. 3D model was modeled and printed, where it would be possible to place all components. Code was programmed, that would display information on a screen. Lastly the components were secured inside the 3D printed box and the circuit was soldered together and the device was tested to see, if displayed information is accurate.
In Electrical studies, it is important that the fundamental laws are clear. It means, that one studying Electrics, should know what is Ohm’s law, how current is divided in different parts of a circuit and what is the difference between parallel, series or both circuits. To make it easier to understand circuits, the author of this thesis has an aim to devise and assemble a device that would help to study laws of electrical circuits. The device would allow the user to modify the circuit and display circuits voltages, currents and resistance on a screen. A circuit was created that consists of nine resistors and thirteen switches, which allow the user to add or remove resistors from the circuit. Raspberry PI was used as the processing unit for the device and two MCP3008 analogue- digitalconverters, to measure voltagedrops on each resistor. 3D model was modeled and printed, where it would be possible to place all components. Code was programmed, that would display information on a screen. Lastly the components were secured inside the 3D printed box and the circuit was soldered together and the device was tested to see, if displayed information is accurate.
Kirjeldus
Bakalaureusetöö
Tehnika ja tehnoloogia õppekaval
Märksõnad
bakalaureusetööd, Raspberry PI, vooluring, analoog- digitaalmuundur