scholarly journals SOLAR TRACKER CERDAS DAN MURAH BERBASIS MIKROKONTROLER 8 BIT ATMega8535

2016 ◽  
Vol 5 (1) ◽  
Author(s):  
I Wayan Sutaya ◽  
Ketut Udy Ariawan
Keyword(s):  
Power Consumption ◽  
Impulse Response ◽  
Digital Filter ◽  
Low Cost ◽  
Assembly Language ◽  
Infinite Impulse Response ◽  
Test Results ◽  
Constant Number ◽  
Solar Tracker

prototipe produk solar tracker cerdas berbasis mikrokontroler AVR 8 bit. Solar tracker ini memasukkan filter digital IIR (Infinite Impulse Response) pada bagian program. Memprogram filter ini membutuhkan perkalian 32 bit sedangkan prosesor yang tersedia pada mikrokontroler yang dipakai adalah 8 bit. Proses perkalian ini hanya bisa dilakukan pada mikrokontroler 8 bit dengan menggunakan bahasa assembly yang merupakan bahasa level hardware. Solar tracker cerdas yang menggunakan mikrokontroler 8 bit sebagai otak utama pada penelitian ini menjadikan produk ini berbiaya rendah. Pengujian yang dilakukan menunjukkan bahwa solar tracker cerdas dibandingkan dengan solar tracker biasa mempunyai perbedaan konsumsi daya baterai yang sangat signifikan yaitu terjadi penghematan sebesar 85 %. Besar penghematan konsumsi daya ini tentunya bukan sebuah angka konstan melainkan tergantung seberapa besar noise yang dikenakan pada alat solar tracker. Untuk sebuah perlakuan yang sama, maka semakin besar noise semakin besar pula perbedaan penghematan konsumsi daya pada solar tracker yang cerdas. Kata-kata kunci: solar tracker, filter digital, mikrokontroler 8 bit, konsumsi daya Abstract This research had made a prototype of smart solar tracker product based on microcontroller AVR 8 bit. The solar tracker used digital filter IIR (Infinite Impulse Response) on its software. Filter programming needs 32 bit multiplication but the processor inside of the microcontroller that used in this research is 8 bit. This multiplication is only can be solved on microcontroller 8 bit by using assembly language in programming. The language is a hardware level language. The smart solar tracker using the microcontroller 8 bit as a main brain in this research made the product had a low cost. The test results show that the comparison in saving of baterai power consumption between the smart solar tracker and the normal one is 85 %. The percentage of the saving indubitably is not a constant number but depend on how much noise occurs on the solar tracker. For the same operation of both kind of the solar tracker, the greater of noise will make the greater of the percentage of saving of power consumption for the smart solar tracker.

scholarly journals Implementasi Filter Finite Impulse Response (FIR) Window Hamming dan Blackman menggunakan DSK TMS320C6713

2018 ◽  
Vol 4 (1) ◽  
pp. 16
Author(s):  
LITA LIDYAWATI ◽  
PAULINE RAHMIATI ◽  
YULI SUNARTI
Keyword(s):  
Impulse Response ◽  
Digital Filter ◽  
Finite Impulse Response ◽  
Sampling Frequency ◽  
Test Results ◽  
Frequency Bandwidth ◽  
Magnitude Response ◽  
Frequency Bands ◽  
Stopband Attenuation ◽  
Simulation Results

ABSTRAKFilter didefinisikan sebagai proses atau rangkaian yang melewatkan pita frekuensi tertentu yang diinginkan dan meredam pita frekuensi lainnya. Salah satu metode perancangan filter digital Finite Impulse Response (FIR) adalah metode windowing. Dalam penelitian ini digunakan jenis window Hamming dan Blackman. Simulasi dilakukan dengan menggunakan software Matlab dengan memasukan frekuensi passband, frekuensi stopband, ripple passband, dan stopband attenuation. Dengan frekuensi sampling sebesar 15000 Hz, frekuensi passband sebesar 3000 Hz, frekuensi stopband sebesar 5000 Hz. Setelah simulasi dilakukan implementasi filter dengan parameter yang sama menggunakan DSK TMS 320C6713 dengan bantuan software CCS. Simulasi dan implementasi dilakukan pada semua band frekuensi. Hasil pengujian terhadap implementasi filter adalah respon magnitude, frekuensi cut-off, bandwidth, dan faktor kualitas dengan hasil simulasi tidak menunjukkan perbedaan yang signifikan.Kata kunci: filter digital, windowing, Hamming, Blackman, frekuensi cut-off.ABSTRACTFilter is defined as a process or series that skip certain desired frequency band and other frequency bands drown. One method of designing a digital filter Finite Impulse Response (FIR) is a windowing method. This study used the type of window Hamming and Blackman. Simulations performed using Matlab software by inserting a frequency passband, stopband frequency, passband ripple, and stopband attenuation. With a sampling frequency of 15,000 Hz, a frequency of 3000 Hz passband, stopband frequency of 5000 Hz. After the simulation is completed, implementation of the filter with the same parameters using TMS 320C6713 DSK with the help of software CCS. Simulation and implmentasi performed on all frequency bands. The test results of the implementation of the filter is the Magnitude response, the cut-off frequency, bandwidth, and quality factor with simulation results showed no significant difference.Keywords: digital filter, windowing, Hamming, Blackman, cut-off frequency.

NEW FIRST-ORDER COMPLEX DIGITAL-FILTER SECTIONS AND THEIR APPLICATION FOR THE REALIZATION OF IIR FILTERS

1993 ◽  
Vol 03 (03) ◽  
pp. 757-771 ◽  
Author(s):  
K. S. PRASAD ◽  
C. ESWARAN ◽  
A. ANTONIOU
Keyword(s):  
Impulse Response ◽  
Digital Filter ◽  
Digital Filters ◽  
Infinite Impulse Response ◽  
Order Complex ◽  
Iir Filters ◽  
First Order ◽  
Roundoff Noise ◽  
Immittance Converter

New first-order complex digital-filter sections are realized using the concept of the generalized-immittance converter. These sections are then employed for the realization of infinite impulse response digital filters with real coefficients. The filters obtained with the proposed sections have sensitivity and roundoff noise properties that are comparable to those of other structures of this class reported earlier.

Research on Microencapsulated Aquatic Feed Preparation Based on Micro-Jet Spraying Technology

2010 ◽  
Vol 143-144 ◽  
pp. 1071-1074 ◽  
Author(s):  
Shu Fa Chen ◽  
Hong Juan Dai ◽  
Hong Liang Zhou
Keyword(s):  
Power Consumption ◽  
Fluidized Bed ◽  
Loss Rate ◽  
Low Cost ◽  
Membrane Thickness ◽  
Test Results ◽  
Experimental Conditions ◽  
Experimental Process ◽  
The Relationship ◽  
Stability Indices

Based on micro-jet spraying technology, by spouting fluidized bed, aquatic feed encapsulating mechanism and experimental process were introduced, experimental conditions and parameters were discussed.Granular aquatic compound feed encapsulating experiments were done by spouting fluidized bed, the relationship between membrane thickness and microencapsulated time was analysed, stability indices of microencapsulated feed in the water was determined, the test results show that based on micro-jet spraying technology, feed encapsulating experiment parameters controlled easily, microencapsulated feed in smooth shape and good stability, the loss rate of microencapsulated feed in dissolution is less than that of unmicroencapsulated feed, and the spouting fluidized bed in low cost and power consumption , handled easily , so has great promotional value.

The design of second-order bit sliced infinite impulse response digital filter chips using CIRCAD II

1992 ◽  
Vol 23 (1) ◽  
pp. 37-44
Author(s):  
Masuri Othman ◽  
Zainul Abidin Mohd. Shariff ◽  
Mohamad Zakaria
Keyword(s):  
Impulse Response ◽  
Digital Filter ◽  
Second Order ◽  
Infinite Impulse Response
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