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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika KURVATEK Jurnal Penelitian Inovatif Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Asniar Aliyu
Institut Teknologi Nasional Yogyakarta
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation

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Rancang Bangun Alat Pengirim Sinyal Arus 4 -20 mA dari Pemancar Suhu melalui Jaringan GPRS NUGROHO, TRIYAN WAHYU; ALIYU, ASNIAR; PRASOJO, JOKO
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 5, No 1 (2017): ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v5i1.1

Abstract

ABSTRAKPeralatan pengendalian proses dan akuisisi data pada industri migas umumnya menggunakan sinyal arus 4-20 mA. Masing-masing peralatan membutuhkan media untuk menyalurkan sinyal yang dihasilkan. Tujuan penelitian adalah mengimplementasikan suatu perangkat dengan tiga kanal masukan dan luaran untuk pengiriman sinyal arus 4-20 mA dan akuisisi data dari pemancar suhu pada jarak yang jauh. Pembacaan masukan sinyal arus menggunakan ADC pada mikrokontroler dan transmisi data menggunakan jaringan Internet melalui modul GPRS. Data yang diterima diubah menjadi sinyal arus dengan fasilitas PWM dan rangkaian pengubah tegangan ke arus. Sistem akuisisi data menggunakan aplikasi web.. Berdasarkan hasil pengujian alat didapatkan bahwa sinyal arus 4-20 mA dari pemancar suhu dengan jangkauan 0-100 ºC dan 0-150 ºC dapat dikirimkan melalui jaringan GPRS dengan jeda waktu antara 4-17 detik, dengan 2,5625% span nilai akurasi alat, 1,3% span nilai kelinieran alat, dan 1,4287% span nilai presisi alat pada pengujian dengan sampel suhu 27 °C dan 97 °C.Kata kunci: sinyal arus, pemancar suhu, GPRS.ABSTRACTControlling process and data acquisition tools in the oil and gas industry generally uses 4-20 mA of current signal. Each tools is requiring the media to transmit the signal that was resulted. The aim of this research is to implement a device equipped by three input and output channels for sending a 4-20 mA current signal and data acquisition from the temperature transmitter at a distance away. Reading of the input current signal is using the ADC on a microcontroller while data transmission is using the Internet network through GPRS module. That the data received is converted into a current signal by PWM facilities and a voltage to current converter circuit. Data acquisition system is using a web application. On testing tool got the result that the current signal of 4-20 mA transmitter with a temperature range of 0-100 °C and 0-150 °C can be transmitted over the GPRS network with a time delay between 4-17 seconds with 2.5625% span of the accuracy values, 1.3% span of linearity values , and 1,4287% span of precision values tools on testing with a sample temperature of 27 °C and 97 °C.Keywords: signal flow, temperature transmitters, GPRS.
Effect of Dew and Raindrops on Electric Field around EHV Transmission Lines Budi Utama; Asniar Aliyu
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 3: June 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i3.5408

Abstract

This paper analyses the change of electric field in the proximity of 500 kV extra high voltage (EHV) transmission lines, in the presence of raindrops and dew. The computations were carried out using MatLab software by solving the electrostatic equations. The analysis depicts that the spatial distribution of the electric field strength varies with water drop content along the lateral distance along the transmission line. The peak electric field reduces with the water drop content, whereas the electric field remains the same at around 36 m from the transmission line. Then onwards the field strength increases with the water drop content. At long distances the field strength is not affected by the water drops. Such variation is highly important to analyse the adverse effects on the insulators used in HV applications. The results are of high significance to a country such as Indonesia where the precipitation levels are generally high in most parts of the country.
STUDI KELAYAKAN THERMOELECTRIC GENERATOR DARI ALUMUNIUM (Al) DAN KARBON (C) SEBAGAI SOLUSI LAIN ENERGI TERBARUKAN Asniar Aliyu
KURVATEK Vol 6 No 2 (2021): November 2021
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v6i2.2713

Abstract

This study aims to create a prototype of a Thermoelectric Generator which is composed of a set of Aluminum (Al) and Carbon (C) series thermocouples as an alternative energy source. The initial stage in this research is to make a thermoelectric generator that is composed of 120 series thermocouple pairs or consists of 6 thermopiles (20 thermocouple pairs) arranged in series. Then the hot side is given a heat source using an electric iron and the cold side is equipped with a cooling fan and measures the output voltage generated based on changes in the heat generated by the electric iron. The test results show that temperatures up to 50°C produce a DC output voltage with a low increase in voltage change, while above that temperature the output voltage increases significantly. This shows that based on this initial experiment, Al and C thermoelectric generators are feasible to be used as an alternative energy source.
PERANCANGAN SISTEM PENETAPAN TINGKAT KEPADATAN MULTI RUANG MENGGUNAKAN ESP32 okta lestari okta lestari; Asniar Aliyu Asniar Aliyu; Arif Basuki Arif Basuki
Retii 2022: Prosiding Seminar Nasional ReTII ke-17
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

During the COVID-19 pandemic, all activities that involve large numbers of people arereduced to reduce the potential spread of the COVID-19 virus. So the number of people in aroom is important in the current pandemic era. To assist in determining the capacity of thenumber of people in a room, a system can be created to count the number of people in theroom so that the room is always in accordance with the predetermined capacity. Therefore,this study aims to create a system for counting the number of people in an IoT-based roomusing ESP32 as a control center, proximity sensor E18-D80NK to detect the presence ofobjects, 4x4 matrix keypad to enter the specified number of data, DC-DC buck converterstep down as a voltage reducer so that the ESP32 and selonoid doorlock can function, LCDI2C and by using Blynk.
Efektivitas Teachable Machine dan Raspberry Pi dalam Mendeteksi Nominal Uang Kertas pada Alat Pendeteksi Model Virtual Reality Susanto, Bagas Nur; Nasrulah, Muhammad Asad Catur; Endriawan, Yahya Ginanjar; Aliyu, Asniar
Jurnal Penelitian Inovatif Vol 4 No 3 (2024): JUPIN Agustus 2024
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jupin.634

Abstract

Menurut World  Health  Organization (WHO) ada sekitar 2,2 juta penduduk dunia mengalami kebutaan. Orang dengan gangguan penglihatan seperti tunanetra dan katarak sering kesulitan mengenali nominal uang. Kurangnya kejujuran antara penjual dan pembeli juga dapat menyebabkan mereka sering tertipu karena tidak mengetahui nilai uang yang dipegang. Penelitian ini bertujuan untuk mendapatkan model dan pendeteksi nominal uang kertas menggunakan Teachable Machine dan Raspberry Pi yang cocok diterapkan pada alat pendeteksi model virtual reality untuk membantu penyandang tunanetra. Sampel uang kertas yang digunakan adalah uang kertas edisi 2022 yang diambil melalui webcam Logitech C525 pada jarak 10 cm. Sampel ini kemudian dilatih menggunakan Teachable Machine untuk mendapatkan model dan diekspor dalam format TensorFlow Lite dan diimplementasikan pada Raspberry Pi yang sudah dilengkapi dengan library TensorFlow Lite, OpenCV, Pygame dan GPIO. Pendeteksian dilakukan pada jarak 7 cm dan 10 cm menutupi bagian depan dan belakang uang kertas. Hasil penelitian menunjukkan bahwa Rp. 2.000 memiliki tingkat keberhasilan deteksi tertinggi yaitu 100% pada berbagai kondisi, sedangkan Rp. 20.000, Rp. 50.000, dan Rp. 5.000 menunjukkan tingkat keberhasilan deteksi yang lebih rendah. Hasil rata-rata keberhasilan deteksi bagian depan dan belakang nominal uang kertas sebesar 73%. Berdasarkan hasil penelitian ini, Teachable Machine dan Raspberry Pi cukup efektif untuk diterapkan pada alat deteksi model virtual reality untuk membantu penyandang tunanetra.
Rancang Bangun Alat Pengirim Sinyal Arus 4 -20 mA dari Pemancar Suhu melalui Jaringan GPRS NUGROHO, TRIYAN WAHYU; ALIYU, ASNIAR; PRASOJO, JOKO
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 5, No 1: Published January - June 2017
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v5i1.1

Abstract

ABSTRAKPeralatan pengendalian proses dan akuisisi data pada industri migas umumnya menggunakan sinyal arus 4-20 mA. Masing-masing peralatan membutuhkan media untuk menyalurkan sinyal yang dihasilkan. Tujuan penelitian adalah mengimplementasikan suatu perangkat dengan tiga kanal masukan dan luaran untuk pengiriman sinyal arus 4-20 mA dan akuisisi data dari pemancar suhu pada jarak yang jauh. Pembacaan masukan sinyal arus menggunakan ADC pada mikrokontroler dan transmisi data menggunakan jaringan Internet melalui modul GPRS. Data yang diterima diubah menjadi sinyal arus dengan fasilitas PWM dan rangkaian pengubah tegangan ke arus. Sistem akuisisi data menggunakan aplikasi web.. Berdasarkan hasil pengujian alat didapatkan bahwa sinyal arus 4-20 mA dari pemancar suhu dengan jangkauan 0-100 ºC dan 0-150 ºC dapat dikirimkan melalui jaringan GPRS dengan jeda waktu antara 4-17 detik, dengan 2,5625% span nilai akurasi alat, 1,3% span nilai kelinieran alat, dan 1,4287% span nilai presisi alat pada pengujian dengan sampel suhu 27 °C dan 97 °C.Kata kunci: sinyal arus, pemancar suhu, GPRS.ABSTRACTControlling process and data acquisition tools in the oil and gas industry generally uses 4-20 mA of current signal. Each tools is requiring the media to transmit the signal that was resulted. The aim of this research is to implement a device equipped by three input and output channels for sending a 4-20 mA current signal and data acquisition from the temperature transmitter at a distance away. Reading of the input current signal is using the ADC on a microcontroller while data transmission is using the Internet network through GPRS module. That the data received is converted into a current signal by PWM facilities and a voltage to current converter circuit. Data acquisition system is using a web application. On testing tool got the result that the current signal of 4-20 mA transmitter with a temperature range of 0-100 °C and 0-150 °C can be transmitted over the GPRS network with a time delay between 4-17 seconds with 2.5625% span of the accuracy values, 1.3% span of linearity values , and 1,4287% span of precision values tools on testing with a sample temperature of 27 °C and 97 °C.Keywords: signal flow, temperature transmitters, GPRS.
Co-Authors Arif Basuki Budi Utama, Budi Endriawan, Yahya Ginanjar Joko Prasojo Nasrulah, Muhammad Asad Catur NUGROHO, TRIYAN WAHYU okta lestari okta lestari Susanto, Bagas Nur