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Buletin Ilmiah Sarjana Teknik Elektro
Published by Universitas Ahmad Dahlan
ISSN : 26857936     EISSN : 26859572     DOI : 10.12928
Core Subject : Engineering,
Electrical & Electronics Engineering
Buletin Ilmiah Sarjana Teknik Elektro (BISTE) adalah jurnal terbuka dan merupakan jurnal nasional yang dikelola oleh Program Studi Teknik Elektro, Fakultas Teknologi Industri, Universitas Ahmad Dahlan. BISTE merupakan Jurnal yang diperuntukkan untuk mahasiswa sarjana Teknik Elektro. Ruang lingkup yang diterima adalah bidang teknik elektro dengan konsentrasi Otomasi Industri meliputi Internet of Things (IoT), PLC, Scada, DCS, Sistem Kendali, Robotika, Kecerdasan Buatan, Pengolahan Sinyal, Pengolahan Citra, Mikrokontroller, Sistem Embedded, Sistem Tenaga Listrik, dan Power Elektronik. Jurnal ini bertujuan untuk menerbitkan penelitian mahasiswa dan berkontribusi dalam pengembangan ilmu pengetahuan dan teknologi.
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Articles 8 Documents
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Search results for , issue "Vol. 2 No. 3 (2020): Desember" : 8 Documents clear
Arduino-Based Battery Voltage Monitoring and SMS Gateway Muhammad Setiawan; Riky Dwi Puriyanto
Buletin Ilmiah Sarjana Teknik Elektro Vol. 2 No. 3 (2020): Desember
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v2i3.1478

Abstract

This study aims to monitor the value of the voltage on the battery using a voltage sensor and using the State of Charge method to estimate the charged power of the VRLA battery remotely by utilizing SMS Gateway-based technology so that checking is no longer necessary. The results obtained are displayed on the smartphone in the form of an SMS. To determine the SOC in a 12V VRLA battery, it is calculated based on the number of each cell. VRLA 12V has 6 cells, each cell consisting of 2V to 2.4Volt. The capacity of a VRLA battery in 1 cell is declared 100% full at a voltage of 2.3 volts. So that data is obtained to determine the full percentage of the VRLA 12V 6 cell battery with a capacity of 7.2Ah, namely 13.8V. Experiments were carried out using solar panels, VRLA batteries, voltage sensors, Arduino UNO, and GSM SIM900A modules. This study succeeded in reading the measured voltage value with the sensor, and obtained an error value of 0.20 and a standard deviation of 0.02, and for the monitoring process to run smoothly without problems.
Improved Sampling in Carrier-Based Discountinuous SVPWM Simulation Okik Surikno; Tole Sutikno
Buletin Ilmiah Sarjana Teknik Elektro Vol. 2 No. 3 (2020): Desember
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v2i3.1753

Abstract

In this study, a circuit was designed to improve sampling in discontinuous SVPWM simulations using Quartus II software. The v_beta_sin unit was successfully simulated using the waveform editor. The results displayed are in accordance with previous calculations, if the input is 000000001 then the output is 100000011 and so on. The v_alfa_cos unit is also successfully simulated using the waveform editor. The simulation results if the input is 000000001 then the output is 111111111 and so on, according to the previous calculation. The unit counter was successfully simulated using the block diagram in Quartus II. The output of this unit counter is in the form of 9 bits to retrieve v_beta_sin and v_alfa_cos data. The v_beta_sin, v_alfa_cos and counter units used as reference signals are successfully simulated and can be used as a supporting circuit in the simulation of the discontinuous SVPWM method. The results of the simulation show an increase in sampling or sampling by 512.
Design of Blessing Ball Throwing Techniques for KRAI 2018 Robot Rochmat Diantoro; Wahyu Sapto Aji
Buletin Ilmiah Sarjana Teknik Elektro Vol. 2 No. 3 (2020): Desember
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v2i3.2623

Abstract

Abu Robocon 2018 which was held in Vietnam with the theme "nem con" which means throwing a berkah ball. The Indonesia Abu Robot Contest 2018 made a throwing robot design with different pole height. The parameter that must be achieved is the optimization of the throwing mechanical drive. The thrower mechanics in the KRAI robot can use pneumatically by determining the angle of the robotic thrower. The mechanical tilt angle determines the throwing distance of the berkah ball. To find out the height of this research berkah ball will use python to display the parabolic motion. Based on the results of the study obtained the first test results with a throwing angle of 0 ˚-115 ˚ get an average value of a distance of 7.37 m, height 273.4 Cm, time 1.42 s and speed of 5.152 m / s. The results of the two test with a throwing angle of 0 ˚-95˚ obtained an average distance of 8.78 m, height 352.4 Cm, time 1.63 s and speed 5.381 m / s. It can be concluded that the mechanical tilt angle is leaned forward, the pitching results will be lower. When the angle of inclination is tilted backwards the berkah ball will soar more.
Humanoid Dancer Robot Movement Synchronization System with Zigbee Ponco Sukaswanto; Abdul Fadlil
Buletin Ilmiah Sarjana Teknik Elektro Vol. 2 No. 3 (2020): Desember
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v2i3.2695

Abstract

This research proposes a wireless communication between two dancer robots using zigbee to overcome the differences in movement between the robots in order to dance in harmony. The robotic music processor uses Audio Analyzer V2.0 which functions to get 7 frequency values for the music being played. The frequency will be processed by Arduino to determine the condition of the music on and off which will be sent to each robot via the XBee S2C module using the Zigbee method, namely with 1 master and 2 routers. The result is that the music processing system becomes more robust because it uses the Zigbee method. By using the Zigbee method, robot 1 and robot 2 can also communicate with each other because with this method, fellow routers can exchange data. The robot produced by this study can already distinguish the conditions when music is playing or muted, and between robot 1 and robot 2 can communicate with each other. Communication between robots functions so that when one of the robots is late in getting data, the other robots will wait until the late robot completes its movements so that robot 1 and robot 2 are back in sync.
Design of Measurement of Coffee Seed Water Content Using Load Cell Sensor On Coffee Dryer Muhammad Mistu Adi Putra; Amalia Herlina
Buletin Ilmiah Sarjana Teknik Elektro Vol. 2 No. 3 (2020): Desember
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v2i3.2707

Abstract

The conventional method of drying coffee beans that depend on sunlight (drying) has a number of drawbacks, one of which is that the drying productivity takes a long time. In general, coffee drying is carried out until it reaches a moisture content of 12.5% to achieve a quality bean standard. Mathematically, the moisture content can be assessed by paying attention to the initial weight of the coffee beans and the final weight of the coffee beans. So that the use of the Load Cell sensor to read the depreciation value of the coffee bean weight on a coffee dryer powered by Hybrid Collector and LPG coffee beans. Research that has been carried out during 200 minutes of drying in a coffee dryer, the Load Cell sensor is able to read the depreciation value of the coffee bean weight by 114 grams from the initial weight of 978 grams. Therefore, it can be concluded that the final moisture content of coffee beans has reached 12.01% and the final weight of coffee beans is 864 grams.
Design of Water Level Control in Tank Based on Fuzzy Logic Ilmi Rizki Imaduddin
Buletin Ilmiah Sarjana Teknik Elektro Vol. 2 No. 3 (2020): Desember
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v2i3.3307

Abstract

Liquid level control is a regulatory system that is widely used by the petrochemical industry, paper mills, and steam power plants (PLTU). Fuzzy control techniques have light computing capabilities and do not require knowledge of the parameters of the system. The purpose of this research is to design and design a device that can make it easier to adjust the liquid level in the storage tank and observe the fuzzy control performance. Control is done by adjusting the valve opening in the storage tank. From the results of this study, data on setpoint 56 is obtained, the valve is at an angle with all open status (BS), at the first second or 1 second, and at set point 41, the valve is at an angle with a half-closed status (SN), in the 13th second, and the valve will be closed all (NS), if the valve is at an angle at the set point 29, with a time of 1620 seconds or 27 minutes. Based on this research, the proposed system is able to control the water level in the tank using fuzzy control.
Web-Based Job Training Report Guidance System at SMKN 2 Kraksaan Matlubul Khairi
Buletin Ilmiah Sarjana Teknik Elektro Vol. 2 No. 3 (2020): Desember
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v2i3.3343

Abstract

Implementation of Field Work Practices (PKL) is an effort that can be made by SMK to continue to produce graduates who can compete in the business world and the industrial world (DU / DI). The government policy regarding learning at / from home during the Coronavirus Disease 2019 (COVID-19) pandemic has an impact on the reporting process at SMKN 2 Kraksaan. This study aims to build a report guidance system using server side-based web technology. This system was built using a waterfall model and PHP (PHP Hypertext Prepocessor) programming. System design tools used are Flowmap Diagrams, Data Flow Diagrams, and Entity Relationship Diagrams. The black box test results show that the output of the system is in line with expectations. User response to the system using a questionnaire resulted in a feasibility percentage of 83.6% with a very feasible category interpretation. It can be concluded from the test results that the Field Work Practices report guidance system is in accordance with user needs and is very suitable for use.
Simple Handwriting Calculator Application Using Optical Character Recognition (OCR) Supriadi Supriadi
Buletin Ilmiah Sarjana Teknik Elektro Vol. 2 No. 3 (2020): Desember
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v2i3.3348

Abstract

The calculator is a calculation tool that is widely used in various specialized fields of business and commerce. The use of a calculator makes it easier for humans to perform calculation operations, but there are obstacles in the process of inputting numbers if you want to calculate the value of numbers on written media such as paper, whiteboards and so on. The user must first see the text on written media, then read it and remember it then type the writing on a calculator tool or application. The drawback of this method is that when the user forgets the writing on the written media, the user will see the written text and remember it again so that it takes longer to perform calculations using a calculator. The method used in this study is Optical Character Recognition, this method can recognize text contained in images or handwritten images of mathematical number operations. The results of the introduction of the text will then be carried out by arithmetic calculations to get the calculation results. From the trials on 20 handwritten images of mathematical number operations, the results obtained were 85% accuracy of extraction and accuracy of handwritten images that can be calculated and correct by 85%.

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