Articles
<![CDATA[MONITORING AND DETECTION SYSTEM OF NUTRITION FLUID CONCENTRATION AND TEMPERATURE CONDITION AT HYDROPONIC PLANTING PROCESS ]]>
<![CDATA[Abdullah Abdullah]]>
<![CDATA[ FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 3, No 1 (2019) ]]>
Publisher : <![CDATA[Universitas Islam Negeri Sumatera Utara Medan ]]>
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DOI: 10.30821/fisitek.v3i1.5511
<![CDATA[Monitoring and detection system of nutrition fluid concentration and temperature condition is very needed to process hydroponic planting, nutrition fluid concentration and temperature is important variable to determine result plant of hydroponic. The value of nutrition fluid concentration and temperature which is not appropriate can be sure of crop failure. The system can detect and monitor nutrition fluid concentration and temperature at the plant. So that if two variables is not in the right condition, there will be a notification in the form of an alarm and warning to be displayed to LCD, so that the problem of the condition of faulty nutrition and the need for improper temperatures can be overcome. The research used Temperature sensor DHT11 who can sense temperature object where the output is an analog output that must be converted into digital data so that it can be processed by the microcontroller, TDR sensor (Total Dissolve Solid) which can know nutrition fluid concentration while the TDS value high so the fluid is turbid, vice versa. The function of microcontroller Atmega328 as a centre processing for all data (input/output) and equipped with 4 x 20 cm2 LCD display output. So the information of the result measurements and other information can be seen clearly on the LCD display. The result of the analysis proved that sistem had inregrated successfully and reach target who expectation is the sistem can used to monitor and detect sistem of nutrition fluid concentration and temperature condition at hydroponic planting process.Keywords: concentration, fluid, hydroponic, nutrition, and temperature.]]>
<![CDATA[THE PROVISION OF NUTRIENTS AND AUTOMATIC WATERING PLANT BASED ON REAL TIME CLOCK AND SOIL HUMIDITY BASED MICROCONTROLLER ATMEGA32 ]]>
<![CDATA[Abdullah Abdullah]]>;
<![CDATA[Masthura Masthura]]>
<![CDATA[ FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 2, No 2 (2018) ]]>
Publisher : <![CDATA[Universitas Islam Negeri Sumatera Utara Medan ]]>
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DOI: 10.30821/fisitek.v2i2.4030
<![CDATA[The provision of nutrients and watering plants system is very useful for agriculture as farming support. This system does not only process the watering of plants but already equipped with the provision of nutrients that are needed for the development of plants, so the problem of dry soil conditions and the provision of nutrients that are late (not in time) often causes crop failure is no longer a problem in farming. This research uses a type of soil moisture sensor that has two plates as a sensitivity to readings of electric charge, the DS1307 type of Real Time Clock module which is used as a timer to be read in real time, Atmega32 type of microcontroller that functions as a center for processing all data (input / output), and equipped with a 4 x 20 LCD so that the description of the system both the results of measurements, the time of setting the nutrition and other information can be seen clearly on the LCD screen. From the results of testing obtained to prove that this system has been successfully integrated and able to work properly according to the desired target, which can provide nutrients to plants according to the time set and can do the process of watering plants automatically according to the condition of the soil.Keywords: automatic, soil moisture sensor, nutrition, watering, real time clock]]>
<![CDATA[DETECTION AND MONITORING SYSTEM OF SMOKE CONCENTRATION WITH SMOKE DETECTOR AND CAMERA TRACKER ]]>
<![CDATA[Abdullah Abdullah]]>
<![CDATA[ FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 2, No 1 (2018) ]]>
Publisher : <![CDATA[Universitas Islam Negeri Sumatera Utara Medan ]]>
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DOI: 10.30821/fisitek.v2i1.1433
<![CDATA[Detection and monitoring system of smoke concentration is very useful forplaces that tend to be flammable or area/room that are designated as non smoking area. This system is not only able to detect smoke but also determine the existence of point/source of smoke (areas where greater smoke concentrations are detected). The presence of smoke sources can be observed by monitoring systems with the addition of mobile camera trackers to focus on the presence of smoke sources. This system is veryhelpful to facilitate the building/room security officers in monitoring the smoke in their area, either smoke caused by fire or cigarette smoke in non smoking area. This researchuses MQ-2 type smoke sensor, ATmega32 as controller, and also equipped with LCD display, monitor screen, and camera tracker. The test results prove that the system has been successfully integrated and able to achieve the desired target, that this system can be used properly to detect and monitor the presence of smoke sources.Keywords: camera tracker, detection and monitoring system, and smoke sensor.]]>
<![CDATA[CONTROL SYSTEM OF SWIMMING POOL BASED pH LEVEL, RAINFALL AND LIGHT INTENSITY ]]>
<![CDATA[Abdullah Abdullah]]>;
<![CDATA[Silvy Asri Ramadhani Siregar]]>
<![CDATA[ FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 4, No 1 (2020) ]]>
Publisher : <![CDATA[Universitas Islam Negeri Sumatera Utara Medan ]]>
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DOI: 10.30821/fisitek.v4i1.8066
<![CDATA[Swimming pools have the potential to cause health problems if not properly maintained, one of them is by maintaining the swimming pool water pH. pH is very important as a parameter of water quality, the acidity is called neutral if the pH value is 7, the value of pH <7 contains acids and pH > 7.8 contains bases. therefore designed a pool level pH control tool based on light intensity and rainfall. This tool aims to produce a neutral outdoor swimming pool water pH, able to design water pH measuring devices using light intensity sensors and rainfall sensors based on ATmega32 microcontroller and analyze the effect of swimming pool water quality on health. Tests carried out with aquarium prototype and measurements carried out for 1 day continuously. The test results show that this tool is able to neutralize the pH of swimming pool water by producing pH 6.8 and 7.1.Thus, the tool designed is efficient in providing information on the acidity of swimming pool water pH and can neutralize pH levels.]]>
<![CDATA[Studi Pemeliharaan Komponen Utama Pada Gardu Distribusi Tipe Portal di PT. PLN (PERSERO) Rayon Medan Baru ]]>
<![CDATA[Suparmono Suparmono]]>;
<![CDATA[K Harahap]]>;
<![CDATA[Cholish Cholish]]>;
<![CDATA[Martin Sembiring]]>;
<![CDATA[Abdullah Abdullah]]>
<![CDATA[ - ]]>
Publisher : <![CDATA[RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro ]]>
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DOI: 10.30596/rele.v4i1.7824
<![CDATA[Abstrak Penggunaan gardu distribusi sebagai salah satu pokok komponen pada suatu sistem distribusi PLN yang bertujuan untuk menghubungkan jaringan ke pelanggan penguguna. Selain itu dibutuhkannya bentuk perawatan supaya komponen-komponen pada gardu dapat bekerja dengan sebagaimana semestinya. Komponen gardu seperti PHB-TR dan Trafo sering mengalami kerusakan akibat adanya debu atau sawang dari serangga yang mengakibatkan penumpukan kotoran disekitarnya. Akibat dari semua itu konduktor bertegangan akan panas, debu-debu itu juga akan terbakar dan berubah menjadi penumpukan karbon. Karbon yang terbentuk di permukaan isolator dapa menjadi jembatan terjadinya loncatan bunga api listrik yang kemudian menjadi gangguan bagi sistem. Efek negatif agar terhindar dari hal yang buruk ini harus dihindari. Sistem pemeliharaan yang dilakukan PT. PLN (Persero) Rayon Medan Baru dilakukan secara rutin, darurat dan korektif. Seluruh data yang diperlukan dalam penelitian ini diperoleh melalui beberapa instrument berupa pengamatan langsung, wawancara, dan studi literatur yang digunakan untuk melengkapi dan memenuhi data yang dibutuhkan. Data-data yang terkumpul kemudian di analisis dengan menggunakan analisis deskriptif dan kemudian dilakukan pengaplikasian ke dalam bentuk penelitian.Kata kunci : Gardu Distribusi, Komponen Gardu Distribusi, PemeliharaanAbstract The use of distribution substations as one of the main components in a PLN distribution system that aims to connect the network to user customers. In addition, a form of maintenance is needed so that the components at the substation can work properly. Substation components such as PHB-TR and transformers are often damaged due to dust or dust from insects which results in the accumulation of dirt around them. As a result of all that, the live conductor will heat up, the dust will also burn and turn into a buildup of carbon. The carbon formed on the surface of the insulator can bridge the occurrence of electric sparks which then become a disturbance to the system. Negative effects in order to avoid this bad thing must be avoided. The maintenance system carried out by PT. PLN (Persero) Rayon Medan Baru is carried out routinely, emergency and corrective. All the data needed in this study were obtained through several instruments in the form of direct observation, interviews, and literature studies which were used to complete and fulfill the required data. The collected data is then analyzed using descriptive analysis and then applied in the form of research. Keywords : Distribution Substation, Distribution Substation Components, Maintenance]]>
<![CDATA[Analisa Hubungan Seri Dan Paralel Terhadap Karakteristik Solar Sel Di Kota Medan ]]>
<![CDATA[Matoga Siregar]]>;
<![CDATA[Noorly Evalina]]>;
<![CDATA[Cholish Cholish]]>;
<![CDATA[Abdullah Abdullah]]>;
<![CDATA[Moh. Zainul Haq]]>
<![CDATA[ - ]]>
Publisher : <![CDATA[RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro ]]>
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DOI: 10.30596/rele.v3i2.6492
<![CDATA[Abstrak — Sel surya merupakan energi listrik terbarukan, dengan adanya potensi sinar matahari yang umumnya merata dan tersedia sepanjang tahun, dimana radiasi surya rata-rata sekitar 4,5 kwh/m2 sangat berpotensi dimanfaatkan sebagai pendukung kebutuhan energi listrik kita. Sel surya dapat dimodelkan dengan bentuk paralel ataupun seri, jika sel surya dirangkai seri tegangan akan berubah sementara arus tetap dan jika diparalel tegangan tetap arusnya berbeda. Bentuk karakteristik tersebut dipengaruhi cahaya matahari. Perubahan tegangan sel surya yang dirangkai seri jika cahaya cerah 39.6V namun jika sel surya diparalel 19.8V. Sementara arus keluaran maksimal jika sel surya dirangkai paralel 2.45A dan jika diserikan 1.78A. Dari data diatas disimpulkan bahwa selisih perbandingan antara tegangan sel surya yang dihubung seri terhadap paralel adalah 100.05% dimana tegangan pada hubungan seri lebih besar sedangkan selisih perbandingan arus antara seri dan paralel adalah 83.19% dimana arus pada hubungan paralel lebih optimal.Kata kunci : Sel Surya, Karakteristik Arus-Tegangan, Rangkaian Seri-Paralel.Abstract — Solar cells are renewable electrical energy, with the potential for sunlight that is generally even and available throughout the year, where the average solar radiation of around 4.5 kwh / m2 has the potential to be used as a support for our electricity needs. Solar cells can be modeled in parallel or in series, if the series solar cell voltage is changed while the current is constant and if the parallel is fixed the voltage is different. The characteristic shape is influenced by sunlight. Changes in the voltage of the solar cell are arranged in series if the light is 39.6V bright but if the solar cell is paralleled 19.8V. While the output current is maximum if the solar cell is arranged in parallel 2.45A and if it is transmitted 1.78A. From the data above, it can be concluded that the difference in the ratio between the voltage of the solar cell in series and parallel is 100.05% where the voltage in the series relationship is greater while the difference in the current ratio between series and parallel is 83.19% where the current in the parallel relationship is more optimal.Keywords : Solar Cells, Current-Voltage Characteristics, Series-Parallel Circuits]]>
<![CDATA[Sistem Monitoring Pencahayaan (Lux) Pada Ruangan Aula Gedung Terintegrasi Internet Of Things ]]>
<![CDATA[Maharani Putri]]>;
<![CDATA[Abdullah Abdullah]]>;
<![CDATA[Cholish Cholish]]>
<![CDATA[ - ]]>
Publisher : <![CDATA[RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro ]]>
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DOI: 10.30596/rele.v4i1.7817
<![CDATA[AbstrakPenggunaan sistem penerangan sangat dibutuhkan sebagai penambah pencahayaan pada ruangan, dikarenakan cahaya alami tidak dapat memenuhi kebutuhan pencahayaan pada ruangan, terlebih jika ruangan tersebut berukuran besar dan ventilasi cahaya yang kurang seperti pada aula gedung. Sistem monitoring pencahayaan (Lux) pada ruangan gedung terintegrasi Internet Of Things ini bertujuan untuk memonitoring pencahayaan aula gedung agar sesuai dengan nilai lux yang diinginkan. Untuk memonitoring pencahayaan (Lux) sudah dilengkapi 5 (lima) buah sensor intensitas cahaya seri BH1750 yang diletakkan di 5 (lima) titik pada ruangan aula Gedung, kemudian data kelima sensor tesebut akan diproses menggunakan algoritma koreksi rata-rata sensor agar mendapatkan nilai pembacaan intensitas cahaya yang tepat. Didalam sistem ini sudah terintegrasi teknologi Internet of Things (IoT) agar sistem dapat di monitoring dari jarak jauh dengan baik melalui Smartphone. Dari pengujian yang telah dilakukan sistem telah bekerja dengan baik sebagai monitoring pencahayaan (Lux) pada ruangan gedung terintegrasi Internet Of Things.Kata kunci : Pencahayaan, Internet of Things, Sensor BH1750, MonitoringAbstractThe use of a lighting system is needed as an addition to lighting in the room, because natural light cannot meet the lighting needs of the room, especially if the room is large and has less light ventilation as in a building hall. The lighting (Lux) monitoring system in the building room integrated with the Internet Of Things aims to monitor the lighting of the building hall to match the desired lux value. To monitor lighting (Lux), 5 (five) BH1750 series light intensity sensors are equipped and placed at 5 (five) points in the building hall, then the data for the five sensors will be processed using an average sensor correction algorithm in order to get the intensity reading value the right light. In this system, Internet of Things (IoT) technology has been integrated so that the system can be monitored remotely well via Smartphone. From the tests that have been carried out, the system has worked well as a lighting (Lux) monitoring in an Internet of Things integrated building room.Keywords : Lighting, Internet of Things, Sensor BH1750, Monitoringv]]>
<![CDATA[Analisa Sistem Instalasi Listrik Dan Pembagian Daya Di P.T Kereta Api Indonesia Persero (Studi Kasus Stasiun Tebing Tinggi) ]]>
<![CDATA[Cholish Cholish]]>;
<![CDATA[Ilham Andrea]]>;
<![CDATA[Abdullah Abdullah]]>;
<![CDATA[Moh. Zainul Haq]]>;
<![CDATA[Sinta Marito Siagian]]>
<![CDATA[ - ]]>
Publisher : <![CDATA[RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro ]]>
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DOI: 10.30596/rele.v3i1.5232
<![CDATA[Abstrak — Kehidupan pesatnya perkembangan zaman dari tahun ke tahun membuat fasilitas teknologi semakin canggih, salah satunya ialah cahaya penerangan. Setiap dunia perusahaan memiliki cahaya penerangan pada semua sudut ruangan dengan guna memberikan penjelasan dalam melihat melakukan sebuah aktivitas. Cahaya penerangan adalah salah satu komponen yang penting dalam merencanakan suatu aktivitas agar mendapatkan suatu tujuan tertentu. Pencahayaan pada suatu ruangan jika dilihat dari kualitas adalah berupa kuat penerangan atau tingkat iluminasi yang dibutuhkan dimana untuk jenis kegiatan yang berbeda akan memerlukan tingkat iluminasi yang berbeda-beda pula. Melalui hasil penelitian intensistas cahaya penerangan ruang dengan menggunakan Standar SNI 16-7062-2004 serta menghitung energi listrik yang digunakannya. Pengukuran intensitas penerangan diukur menggunakan alat ukur Lux Meter. Pengukuran dilakukan langsung pada saat observasi dilapangan. Ruangan sesuai standar persyaratan kesehatan lingkungan kerja perkantoran dan industri mempunyai fasilitas Intensitas Penerangan (E) dengan tujuan mengetahui titik-titik pencahayaan lampu (N) dimana saja yang digunakan disetiap ruangan serta melakukan pengujian pada untuk mencari hasil ukuran dari item pencahayaan. Dan yang paling utama tujuannya yaitu agar pegawai dilingkungan kerja tersebut dapat beraktivitas dalam bekerja dengan aman dan nyaman.Kata kunci : instalasi listrik, intensitas cahaya, menentukan sistem lampu.Abstract — The rapid development of the times from year to year has made technological facilities more sophisticated, one of which is lighting. Every corporate world has lighting in all corners of the room in order to provide an explanation for seeing doing an activity. Lighting is an important component in planning an activity in order to achieve a specific goal. Lighting in a room, when viewed from quality, is in the form of strong lighting or the level of illumination needed, which for different types of activities will require different levels of illumination. Through the results of research on light intensity of space lighting using the SNI Standard 16-7062-2004 and calculating the electrical energy it uses. Measurement of light intensity is measured using a Lux Meter measuring instrument. Measurements are made directly during field observations. Rooms according to standard health requirements for office and industrial work environments have Illumination Intensity (E) facilities with the aim of knowing which lighting points (N) are used in each room and conducting tests to find the size results of lighting items. And the most important goal is that employees in the work environment can work safely and comfortably.Keywords : electrical installation, light intensity, determine the lighting system.]]>
<![CDATA[Pelatihan Simulasi Proteus untuk Pengendalian Peralatan Listrik Rumah pada Pemuda Muhammadiyah Cabang Pahlawan Perjuangan ]]>
<![CDATA[Abdullah Abdullah]]>;
<![CDATA[Cholish Cholish]]>;
<![CDATA[Samaria Chrisna HS]]>
<![CDATA[ Jurnal Abdi Mas Adzkia Vol 2, No 1 (2021): Agustus- Desember 2021 ]]>
Publisher : <![CDATA[Universitas Islam Negeri Sumatera Utara ]]>
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DOI: 10.30829/adzkia.v2i1.9545
<![CDATA[AbstractThe dedication of society carried out aims to increase the knowledge of Muhammadiyah youth groups regarding the use of technology in controlling home electrical appliances. The technology introduced by the transfer of knowledge through this service is Proteus software. The specific target of this service is that the Muhammadiyah youth group understands the use of Proteus software as a controller of electrical equipment. The method used to achieve the objectives of this Service activity is to provide training materials and demonstrate the use of the Proteus software directly, then the training participants are guided to practice directly so that they can overcome associate problems, namely associates already have knowledge related to technology-based home electrical control by utilizing simulation software. Proteus that can be used to control home electrical appliances and there is an increase in the empowerment of Muhammadiyah youth groups related to the application of technology. The stages of activities in this service are carried out by conducting associate surveys to obtain clearer information regarding associate needs. The implementation of this service activity will also be documented as data used in the final report.]]>
<![CDATA[Pelatihan Rancang Bangun Jam Sholat Otomatis Sumber Daya Solar Cell pada Pemuda Muhammadiyah Cabang Pahlawan Perjuangan dan Pulo Brayan Darat ]]>
<![CDATA[Faisal Irsan Pasaribu]]>;
<![CDATA[Abdul Aziz]]>;
<![CDATA[Noorly Evalina]]>;
<![CDATA[Cholish Cholish]]>;
<![CDATA[Abdullah Abdulllah]]>
<![CDATA[ ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 2 No. 2 (2021): Juni ]]>
Publisher : <![CDATA[CERED Indonesia Publishing ]]>
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DOI: 10.53695/jas.v2i2.284
<![CDATA[Through the service that will be carried out, namely by conducting training activities on the design of automatic clocks with solar panel resources using additional tools in the form of Arduino Uno, in order to be a solution amid the increasing population of unemployment in the city of Medan. Various Arduino Uno boards use different ± different types of Atmega depending on the specifications, for example the Arduino Uno uses the ATmega328 while the more sophisticated Arduino Mega 2560 uses the ATmega2560. The use of solar panel energy will be designed in the form of an LCD Prayer Timer and Adhan Alarm method with a 200WP solar cell resource using the Arduino Uno programming system. Therefore, the Muhammadiyah Youth Leaders of the Heroes of the Struggle Branch and Pulo Brayan Darat are expected to be foster partners in improving these very useful design skills, so that they can serve as examples to young people around in improving the economic level of skilled and creative organizations.]]>
