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INDONESIA
Jurnal SImetri Rekayasa
Published by Universitas Harapan Medan
ISSN : 2715890X     EISSN : 27165035     DOI : 10.35447
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Dalam Jurnal SIMETRI REKAYASA Membahas mengenai scope: Teknik Sipil Teknik Mesin Teknik Elektro Teknik Industri
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 83 Documents
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RANCANG BANGUN ALAT SUPLAI ENERGI RUANGAN STERILISASI MENGGUNAKAN SISTEM TENAGA SURYA Trihot Marsada Sigalingging; Yussa Ananda
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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Abstract

To carry out our daily activities we cannot be separated from electrical energy where electrical energy can make it easier for us to carry out activities, sources of electrical energy can be produced from several sources including hydropower PLTA, PLTU, and other generators. So that the idea and analysis of tolls for making power supplies from PLTS emerged was made in miniature whuch aims to provide power supply for the sterilization room. Previously , to provide power supply for the sterilization room, it had to be from PLN (National Electricity Generator), this is very impractical if it is in a placa that is difficult to access by PLN, for that sunlight is very relevant to use to make power supply for the sterilization room with the PLTS system. This tool also functions to save the national electricity bill. In the design of this tool the main components are 20 WP solar cells which will convert sunlight into electrical energy, 12 volt battery as an energy stire, SCC as acontrol for charging the battery so that it doesn’t overload when the battery is full, the battery is charging is cut off automatically and the current does not return to the solar panel at once dick off/on load. The main load that will be activated by this power is a 12 volt water pump and an arduini uno maximum of 11 volt and a minimum of 6 volts, therefore it needs to be separated from the pump source and given additional components to step down voltage so that the voltage is not more than 11,5 volt this is to avoid damage on arduino uno. With research conducted for 5 days the tool can be active from 08:32-16:39 WIB the weather is sunny with the voltage remains stable, if at night or cloudy the load will fully supply from the battery for about 4 hours, with this tool the sterilization room can be used as intended.
SINKRONISASI GENERATOR 635 KVA DENGAN GENERATOR 635 KVA MENGGUNAKAN MODULE DEEP SEA Nurul Fahmi Sahputra; Eddy warman; Agus Almi Nasution
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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Abstract

In the operation of a generator, it must be carried out in a short time to adjust the voltage and frequency required at the load and also equalize between generator 1 and the others. If the synchronization operation of the generator is done manually by the operator, it takes time and a level of accuracy. Therefore, research related to the synchronization of generators with generators using the Deep Sea Electronic Module 8610 was carried out. By doing this research, it is hoped that later it can help the generator operation process so that generator 1 and generator 2 can work by sharing the load when used. The Deep Sea Elektonic 8610 module is a tool that is used to synchronize between generators and generators and can start and stop generators properly automatically and is able to protect in case of disturbances, both under voltage, over voltage, over load, reverse power relay, and failure phases. voltage. This system works automatically when the PLN electricity supply is cut off, if this situation occurs, the generator start-stop system will automatically activate and for 15 seconds the load can be supplied by the generator. When PLN electricity has arrived, the deep sea module will transfer the load to PLN and synchronize the two generators, enter colling down, then turn off the generator, and the generator will be in standby again.
RANCANG BANGUN RUANG STERILLISASI, PEMBACA SUHU TUBUH MENGGUNAKAN SENSOR MLX90614 BERBASIS ARDUINO Yogi Pratama; Yussa Ananda
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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Abstract

Corona virus disease 2019 which is abbreviated as Covid-19 is a new type of corona outbreak that was discovered in Wuhan, Hubei, China in 2019. Covid-19 is the cause of respiratory tract infections. This tool is useful for minimizing the spread of Covid-19 with an Arduino Uno-based antiseptic misting automatic control system. This research was carried out in the integrated laboratory of Electrical Engineering Education, Harapan University, Medan. The arduino uno based automatic antiseptic misting control system is a system built on the Dettol antiseptic liquid antiseptic spraying device. This Arduino uno-based antiseptic misting can work according to a system designed to spray Dettol antiseptic liquid antiseptic for the human body, the way it works is when an object is at a predetermined point or distance, the PIR sensor will detect it and will send a signal to the Arduino uno. and then it will be processed to an actuator/pump which will drain the liquid to a 0.2 mm misting nozzle as a fluid channel that is positioned to provide turbulence to the fluid in this case the Dettol antiseptic liquid comes out through the apparatus as antiseptic dew for 7 seconds, how to identify covid-19 there are several ways One way to identify is by measuring body temperature. With the non-contact MLX90614 sensor, direct your hand towards the sensor without touching it. If the MLX 90614 sensor detects an object, the LCD will display the body temperature. The MLX90614 sensor reader then detects whether the body temperature is too high or too low, if the temperature is < 37℃ then the LCD will display "you fever" and the buzzer will light up. The tool that I developed can be used as a good solution during a pandemic like this, one way to minimize and identify is already in the tool that I developed. automatic sterilization chamber and non-contact body temperature reader will start working after being supplied with current by the adapter or power.
ANALISIS RUGI-RUGI PADA SERAT OPTIK MENGGUNAKAN OTDR (OPTICAL TIME DOMAIN REFLECTOMETER) Yussa Ananda
Jurnal Simetri Rekayasa Vol 1 No 2 (2019): Edisi November
Publisher : Universitas Harapan Medan

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Abstract

Optical fiber is one of the transmission media that is widely used for local networks at this time, its use is predicted to replace copper cables. In practice, optical fiber itself has losses, including: losses caused by the fiber itself (intrinsic loss) such as Rayleigh Scattering, absorption loss, dispersion. There are also losses caused by external forces and human-error (extrinsic loss) such as losses on connectors/splices, coupling/splitter losses, and bending losses. Optical fiber is divided into single-mode and multi-mode. single-mode fibre uses smaller cores. As for what was used in this study, they are both. In this study, optical fiber losses were measured with OTDR (Optical Time Domain Reflectometer). Overall, based on the results of the comparative analysis of optical fiber losses from the results of measuring tools with empirical formula calculations, a large enough difference was obtained but not significant to deny the results of OTDR measurements in the field
PERANCANGAN MODUL PRAKTIKUM PENGOLAHAN SINYAL DIGITAL BERBASIS SOFTWARE Feri Prayogi Dahlan; Yussa Ananda; Erwin Panggabean
Jurnal Simetri Rekayasa Vol 1 No 2 (2019): Edisi November
Publisher : Universitas Harapan Medan

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Abstract

The digital signal processing practicum is one of the practicums that must be followed by students of the Electrical Engineering Study Program at Harapan University of Medan, especially students of the Telecommunications Engineering concentration. To support the continuation of practicum activities so that they run well, an alternative model is needed and also as a backup if there is a problem with the actual module when doing the practicum. Alternative models can be designed using the help of software. This study aims to design a model of digital signal processing material using matlab software. In this study, a model design was carried out from the practicum material of digital signal processing by utilizing the graphical user interface (GUI) tool in the Matlab programming language. Then testing is carried out on the model that has been designed, the results of this model design are expected to be a supporting method or backup of the actual experiment. From the test results of the practicum model design, all models that have been designed run well and can be used as simulators for digital signal processing practicum. With this simulator, it will foster students' interest in practicum and increase understanding of the material being practiced
PENGUKURAN KUALITAS JARINGAN INTERNET DENGAN SINYAL 4G LTE OPERATOR TELKOMSEL DI KOTA MEDAN DENGAN METODE QUALITY OF SERVICE (QoS) Yussa Ananda
Jurnal Simetri Rekayasa Vol 3 No 1 (2021): Edisi April 2021
Publisher : Universitas Harapan Medan

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Abstract

Today's internet needs in information communication are growing, internet networks are getting wider such as 1G, 2G, 3G and 4G technologies. Long Term Evolution (LTE) is a long term evolution radio access network issued by 3rd (Generation Partnership Project). To find out internet network services around the Jln. Imam Bonjol, Medan City, has carried out tests and measurements with the final result obtained an average QoS index of 3.2 with a satisfactory category, namely by using the Quality Of Service (QoS) method for the quality and power of data transfer. The Quality Of Service (QoS) method contained in a TCP/IP network is one that focuses on the allocation of bandwidth in the internet network that flows fairly, as needed. QoS parameters that rely on the testing process on throughput, delay time, latency time and packet request time
PERANCANGAN SISTEM INFORMASI DETAK JANTUNG BERBASIS ANDROID PHONE MENGGUNAKAN MEDIA BLUETOOTH Yussa Ananda
Jurnal Simetri Rekayasa Vol 3 No 1 (2021): Edisi April 2021
Publisher : Universitas Harapan Medan

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Abstract

The heart is one of the important organs owned by humans which functions to pump blood throughout the body and accommodate it after being cleaned by the lungs. Heart rate in beats per minute (bpm) is a parameter that shows the condition of the heart, and the way to know the condition of the heart is to know the frequency of the heartbeat. A wireless heart rate monitoring system has been designed using bluetooth and smartphone technology. This will make it easier for doctors and nurses to monitor the patient's heart condition in real time. An infrared sensor is attached to the patient's finger to pick up heart rate signals through the bloodstream. This signal is converted into logic and then read by an Atmega 8 controller. The controller will calibrate pulses against time so that data on the number of beats per minute is obtained. The calibration results are then sent by the controller to the smartphone via the HC-05 bluetooth adapter. The data received by the smartphone is then displayed through an application, namely bluetooth electronics. The system has been successfully tested on several volunteers with different data according to the conditions of the volunteers. The test results are quite accurate with a margin of error not exceeding 5%
SISTEM NETWORK SHARING SOLUTION PADA BTS GSM/EDGE MENGGUNAKAN METODE MULTI-OPERATOR BSS (MOBSS) DI PT.INDOSAT.TBK MEDAN Yussa Ananda
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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Abstract

This study discusses the implementation of a network sharing solution system with the Multi-Operator BSS (MOBSS) method which is applied to PT.INDOSAT.TBK Medan. Network sharing is a breakthrough in the telecommunications world that allows two or more operators to use a shared network or infrastructure. From the results of this study, it can be seen that the advantages of using this network sharing solution system are that operators can improve the efficiency of telecommunication networks both in terms of investment (CAPEX) and operations and maintenance (OPEX), as well as helping government programs in saving electricity. From the results of research on BTS KTRGUBERNURMDN (eg BTS sharing owned by Indosat) it is known that this BTS has two sectors, namely BTS ID 420 and BTS ID 421, where BTS ID 420 is BTS on service owned by Indosat while BTS ID 421 is BTS on service as another operator is “OPR A”. From the test results using a test call using Indosat operator signals, it is known that telephone calls use Channel Number H731, TRX 3 with timeslot position in slot 6. on slot 2.
ANALISIS PANJANG GANDENGAN TERHADAP DITRIBUSI DAYA OPTIK Yussa Ananda
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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Abstract

Optical fiber is a transmission medium that is widely used for local networks. In optical fiber transmission media there are various kinds of losses, including: Coupling losses, splicing losses, bending losses and attenuation losses in the connector. In this final project, the calculation of optical fiber losses is carried out. As for the observed length of the optical power coupling with the output obtained by the Directional Coupler. Fabrication and characterization of Directional coupler on fiber material with stripping lengths of 34mm and 28mm using the BF5RD1-N approach to the Fused Biconical Tapered (FBT) method which produces different characterization results and meets fabrication standards. The results of the directional coupler characterization using Microsoft Excel and BF5RD1-N obtained parameters CR (Coupling Ratio), Le (ExcessLoss), Lins (Insertion Loss) and D (Directivity). In the directional coupler, using each formula the value of CR=0.34; Le= -4dB; Lins= -11,21
Sistem Pendeteksi Panas Kabel dan Peringatan Dini Pada Panel Surya Listrik Menggunakan Sensor Suhu Ariq Muntasir Adha; Ahmad Yanie; Fajar Dwi Wiliyanto
Jurnal Simetri Rekayasa Vol 4 No 1 (2022): Edisi April 2022
Publisher : Universitas Harapan Medan

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Abstract

Melting cable skin will short circuit current and cause fire. The factor that makes fires due to short circuits is that they are difficult to detect from the start. The purpose of this research is to design a protection and early warning system for electrical panels. The design method uses AVR ATmega 8 and also uses a C language program for system design. The result of this research is a thermal protection system on the conductor cable which is designed with an electronic circuit and is equipped with a thermal sensor, microcontroller, protection relay and display. Constant Value is 100 C/Volt. The LM 35 sensor converts temperature to voltage with a resolution of 10 mV / °C. With a thermal protection system on the cable, cable damage can be avoided and can also avoid fatal consequences such as melting cables and short circuits that can cause fires.

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