Sökning: "Fredrik Trella"

Hittade 2 uppsatser innehållade orden Fredrik Trella.

  1. 1. Development of a Cost-Effective, Reliable and Versatile Monitoring System for Solar Power Installations in Developing Countries : A Minor Field Study as a Master Thesis of the Master Programme in Engineering Physics, Electrical Engineering

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Fredrik Trella; Nils Paakkonen; [2016]
    Nyckelord :Solar Power; PV Systems; Embedded Systems; Freescale Freedom Board; Freescale Kinetis; Kinetis K64; Measurement of Solar Power; IV curves; Electronics project management; Open Source; Designspark PCB; ECAD; CAD; EMC; PCB manufacturing; Prototyping; Minor Field Study; MFS; SIDA; SystemC; Kenya; Nairobi; University of Nairobi; Justus Simiyu; David Karibe; Arnold Bett; Mjomba Kale; Boniface J M Muthoka; International Science Programme; ISP; MIC79110YML; LM2576; Island System; Hybrid System; Solar Charge Controller; Solar Power Inverter; State Space Model; Model Based Development; Platform Based Development; Makers; Just-Us Powers; Just-Us; ESP8266; Fona mini; DHT22; ACS758; Model of Computation; MOC; Toner-Transfer; Toner Transfer; 3D-CAD; Mpala Research Centre;

    Sammanfattning : This report is the result of a conducted Minor Field Study (MFS), to the greatestextent funded by the Swedish International Development Cooperation Agency(SIDA), in an attempt to design a system for evaluating smaller solar power systems indeveloping countries. The study was to the greater part conducted in Nairobi, Kenyain close collaboration with the University of Nairobi. LÄS MER

  3. 2. Lokalisering av skidor i lössnö : Självständigt arbete i Teknisk Fysik

    Kandidat-uppsats, Institutionen för teknikvetenskaper

    Författare :Fredrik Trella; [2011]
    Nyckelord :skis; positining; 433; Atmel; ATMega; AVR; sender; receiver; byte loss rate; RSSI; Yagi; RF; USART; UART; USI; skidor; lokalisering; positionering; 433; Atmel; ATMega; AVR; sändare; mottagare; byte loss rate; RSSI; Yagi; RF; USART; UART; USI;

    Sammanfattning : This report studies the possibility of using some sort of radio sender and transmitter in order to position skis lost in powder snow. It is concluded that a RF-solution on the 433 MHz frequency should be the most efficient. LÄS MER