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All Journal International Journal of Electrical and Computer Engineering SMARTek Foristek Techno.Com: Jurnal Teknologi Informasi MEKTRIK Indonesian Journal of Electrical Engineering and Computer Science
Mery Subito
Jurusan Teknik Elektro Fakultas Teknik Universitas Tadulako
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Mathematics

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RANCANG BANGUN PERANGKAT MONITORING DENYUT JANTUNG DAN SUHU TUBUH Saputra, Erwin Adias; Subito, Mery; Dodu, A.Y. Erwin
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Publisher : MEKTRIK

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Abstract

Today, the development of science leads to the development of technologies intended to facilitate all the activities and work of human. In medical field, the used technology seem’s to be more practical, effective and efficient. In medical world, physical or clinical examination is a process undertaken by a medical expert to examine the patient's body so that it can be found clinical signs of disease. Now the use of technology in medical field is quite expensive so it is still much less practical in using of technology, effectively and efficiently. It is needed a technology that can automatically record one’s heart rate and temperature conditions so that facilitate patient medical record activity. By apply is the technology that can automatically show the value of the results of the clinical examination is expected to improve the process examination of the patient. By using a microcontroller that can change the amount of voltage into a digital value, photodiode sensors to measure heart rate and LM35 to measure the body temperature of the patient. The measured value sent by sensor will be treated and displayed on computer. The measurement results are in units that suitable to measured units like bpm (beats per minute) for heart rate and temperature oC for temperature. Results are displayed on the GUI (Graphic User Interface) in computer graphics and realtime with a value corresponding to the value generated by the sensor. The equipment testing results of error rate from heart beat sensor is 2.9% and temperature sensor is 0.51%.
RANCANG BANGUN ALAT UKUR PH DAN SUHU BERBASIS SHORT MESSAGE SERVICE (SMS) GATEWAY Astria, Fanny; Subito, Mery; Nugraha, Deny Wiria
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Publisher : MEKTRIK

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Abstract

pH and temperature measuring system devices based on SMS gateway is a measurement tool that communicates with the provider, so it can be used to monitor the pH level and temperature of the water in the distance. It works by using a pH sensor and a temperature detector. pH and temperature measuring devices based on SMS gateway can measure the pH level of the water with a scale between pH 0 to pH 14, whereas for temperature, it can be measured with a scale between -100C up to 1000C. To create this system, it is needed wavecom modem for making a communication with the provider, the pH and temperature sensor as a detector, and ATMega 128 as a controller. This systems is programmed by using Delphi 7 ​​and micropascal application. It is designed during this study a pH and temperature measuring instrument based on SMS gateway and SMS (Short Message Service) as a medium for transferring the information through a long distances. Measurement data can be viewed directly in the LCD of the pH and temperature module. Moreover, it can also be viewed remotely via a PC connected to the modem wavecom and on a mobile phone .   Keywords: pH Sensor , Temperature Sensor , SMS (Short Message Service) Gateway .    
Pengenalan Ucapan Kata Berkorelasi Tinggi Subito, Mery
SMARTek Vol 6, No 2 (2008)
Publisher : SMARTek

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Abstract

Penelitian pengenalan ucapan oleh komputer dengan metode stokastik sudah mulai dipopulerkan sejak tahun 1970-an. Salah satu bentuk metode pendekatan stokastik adalah Hidden Markov Model. Penelitian ini menggunakan model tersebut untuk menganalisis dan mengenali delapan  ucapan kata bahasa Indonesia yang memiliki korelasi tinggi antara kata yang satu dengan kata yang lainnya, yaitu: muka, muak, kamu, kaum, masuk, kamus, kusam dan sukma. Analisis LPC (Linear Predictive Coding) digunakan untuk mencari ciri-ciri penting setiap sinyal suara i kata-kata terucap. Selanjutnya HMM (Hidden Markov Model) digunakan untuk pelatihan dan pengenalan. Hasil penelitian menunjukkan bahwa rata-rata pengenalan seluruh kata  cukup signifikan yaitu di atas 97%.
PERANCANGAN PLTS SEBAGAI SUMBER ENERGI LISTRIK PADA KANTOR ENERGI DAN SUMBER DAYA MINERAL PROPINSI SULAWESI TENGAH Asse, Ambo; Subito, Mery; Arifin, Yusnaini
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 6, No 1 (2016)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract

One of the technologies that utilizes solar energy in delivering electric energy isphotovoltaic (PV) system. It converts solar energy into electric energy directly which is environmental friendly, non-pollution, not taking fossil fuel and low cost maintenance. Mineral Resources (ESDM) is one of the offices which uses PV system in Palu municipality. However, only 3 AC powered by non battery-PVis used in ESDM. In the future, ESDM have planned to add the capacity of PV system to supply the other AC. The objective of this study was to design PLTS system for supplying other AC and lighting especially in evening. In thiscase, sun panel capacity, battery, BCR, and inventers will be determined. This study also aims giving information about investment cost which is needed by PLTS with battery without battery and PLN. The calculation in this study used data from BMKG Meteorology Station Palu and Mineral Sources (ESDM) office of Central Sulawesi. The results showed that the capacity power for supplying Air Conditioner charge and lighting in evening was 122,54 kWh, where the systemsvoltage was 120 volt. moreover, the number of sun panel was 40 unit with capacity 200 Wp, 15 unit for battery with capacities 24v 1000Ah.Keyword : Photovoltaic design, Battery, BCR, Inverter, Early Investment
ALAT PENGUKUR PEMAKAIAN ENERGI LISTRIK MENGGUNAKAN SENSOR OPTOCOUPLER DAN MIKROKONTROLER AT89S52 Subito, Mery; -, Rizal
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 2, No 2 (2012)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

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Abstract - kWh-meter as an each hour electrical energy consumption measurer is still using conventional tools which only records the amount of electrical energy used in each hour. By using AT89S52 microcontroller and optocoupler sensor, the conventional kWh-meter was modified to be a measurer which is not only display s the amount of the used electrical energy but also shows the value of money in rupiahs that should be paid by the customer. The principle of how this system works is PLN as a power source of kWh-meter moves the disc of kWh-meter when it is in the underload condition. When the disc spin and pass the optocoupler sensor, the sensor will turn on. Each time the disc cuts the beam of light, the sensor will instruct the microcontroller, the main controller, to process the execution instruction. This execution instruction results in the reading of both a number of rounds per kWh and an amount of rupiahs display ed in LCD.   Keywords : kWh-meter, microcontroller, optocoupler
IMPLEMENTASI KONTROL PROPORSIONAL, INTEGRAL DAN DERIVATIF (PID) TERHADAP KECEPATAN MOTOR DC Andi Fatmawati, Mery Subito, Baso Mukhlis
Foristek Vol. 8 No. 1 (2018): Foristek
Publisher : Foristek

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Abstract

Recently, research on DC motor has been rapidly developed, from the wether simple until the advanced / complicated . DC motor utilizes DC power connected to its armature and field (stator) winding, in which the power will be converted to mechanical energy. In addition, DC motor has beneficial in big initial torgue and simple velocity control. When DC motor given the burden of arbitrary, rotation speed of motor also change.PID method was employed to control the rotation speed remaining constant. Implementation and simulation method was proposed in this research. The result shows that when 12,5 V of voltage was applied to DC Motor, at no load – open loop, the rotation speed was 2000 rpm. Increasing load up to 0,5 N.m, decreased the rotation from 2000 rpm to 1404 rpm. Furthermore, for closed loop using Proportional control (P), Proportional Integral (PI) and Proportional Derivatif (PD) control. proved that rotation of motor was unstable. Whereas, PID control method can stabilize the rotation of motor and give just response,reacling steady state at 3,4 s with 0,004 V of error.
Internet of things–based vital sign monitoring system Alamsyah Alamsyah; Mery Subito; Mohammad Ikhlayel; Eko Setijadi
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 6: December 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (662.84 KB) | DOI: 10.11591/ijece.v10i6.pp5891-5898

Abstract

Wireless network technology-based internet of things (IoT) has increased significantly and exciting to study, especially vital sign monitoring (body temperature, heart rate, and blood pressure). Vital sign monitoring is crucial to carry out to strengthen medical diagnoses and the continuity of patient health. Vital sign monitoring conducted by medical personnel to diagnose the patient's health condition is still manual. Medical staff must visit patients in each room, and the equipment used is still cable-based. Vital sign examination like this is certainly not practical because it requires a long time in the process of diagnosis. The proposed vital sign monitoring system design aims to assist medical personnel in diagnosing the patient's illness. Vital sign monitoring system uses HRM-2511E sensor for heart detection, DS18b20 sensor for body temperature detection, and MPX5050DP sensor for blood pressure detection. Vital sign data processing uses a raspberry pi as a data delivery media-based internet of things (IoT). Based on the results of the vital sign data retrieval shows that the tool designed functioning correctly. The accuracy of the proposed device for body temperature is 99.51%, heart rate is 97.90%, and blood pressure is 97.69%.
SISTEM MONITORING TEKANAN DARAH DAN SUHU TUBUH BERBASIS IoT (INTERNET of THING) MENGGUNAKAN ANDROID Amran Amran; Mery Subito; Alamsyah Alamsyah
Foristek Vol. 10 No. 2 (2020): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (552.011 KB) | DOI: 10.54757/fs.v10i2.21

Abstract

At this time the development of science leads to the development of technology whose aim is to facilitate all activities and human work. In the medical field even the technology used is increasingly developing more practical, effective and efficient. In the medical world a physical examination or clinical examination is a process carried out by a medical expert to examine a patient's body so that it can find clinical signs of the disease. The use of technology in the medical field today requires a technology that can automatically record the condition of one's blood pressure and body temperature. With the technology that can automatically show the value of clinical examination results are expected to make it easier in the examination. By using NodeMCU which converts the voltage to a digital value and displays it on Android and the MPX5050DP sensor to measure blood pressure and the DS18B20 sensor to measure body temperature, the value sent by the sensor will be processed and displayed on Android. The measurement results are in the form of quantities corresponding to the measured unit such as mmHg (Millimeter of Mercury (Hydrargyrum)) for blood pressure and ˚C for temperature. Results are displayed on the android display. Tests on the device resulted in an error rate from the MPX5050DP sensor of 1.13% for systolic blood pressure, 0.95% for diastolic blood pressure, and at a temperature sensor of 0.5%.
RANCANG BANGUN PROTOTYPE SISTEM PENDETEKSI PELANGGARAN PADA ZEBRA CROSS DI LAMPU LALU LINTAS BERBASIS ARDUINO Uswatun Hasanah; Mery Subito; Muhammad Aristo Indrajaya
Foristek Vol. 11 No. 1 (2021): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.831 KB) | DOI: 10.54757/fs.v11i1.31

Abstract

Current road users cannot be separated from the number of violators, therefore traffic lights are made to regulate traffic on the road. At traffic lights, there is also a zebra crossing which serves as a means of crossing the road for pedestrians. To minimize violations at road intersections, researchers designed a tool to detect traffic violations. Traffic violation detection tool is made in prototype form using a control system with Arduino nano and software. This traffic light system uses LDR and laser sensors to detect these violations by cutting the laser which sends light to the LDR. This tool is also equipped with a webcam camera that functions to photograph violations that occur and a buzzer that functions as a warning to officers and riders in the event of a violation with an average response speed of the webcam of 2.37 seconds and the average response speed of the buzzer is 0.4 seconds. . The snapshot from the webcam is saved automatically on your PC / Laptop.
RANCANG BANGUN SISTEM KEAMANAN KENDARAAN DILENGKAPI DENGAN TEKNOLOGI GPS DAN SMS GATEWAY Abdi Chaerunnas; Mery Subito
Foristek Vol. 10 No. 1 (2020): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (577.96 KB) | DOI: 10.54757/fs.v10i1.50

Abstract

Vehicle theft is one of the most common cases in big cities. The absence of a security system on a vehicle is one of the causes of the case. Therefore, we need a security system on the vehicle in the form of an alarm and can also perform the tracking function. This study aims to design a vehicle security system using GPS and SMS Gateway technology. This system uses the u-blox Neo6m GPS module, GSM SIM 800L v2 module and Arduino Uno microcontroller. The tracking system uses data from GPS coordinates sent to the user's smartphone number and displayed on the Google Maps application. The accuracy of GPS coordinates in this system when compared to GPS on smartphones has a gap of between 1 - 26 meters. The response time when the user sends a command to track the vehicle to get a reply sms that is ± 37.6 seconds.
Co-Authors A.Y. Erwin Dodu Abdi Chaerunnas Afdal Tahir Agustinus Kali Ajeng Ayu Maike Alamsyah - Alamsyah Alamsyah Amran Amran Ardi Amir Ardias, Erwin Asse, Ambo Blestania, Theresa Deny Wiria Nugraha Erwin Adias Saputra, Erwin Adias Erwin Ardias Saputra Fanny Astria, Fanny Hariyanti, Kiki Andes Indrajaya, Muhammad Aristo Kahfi, Ibnu Mohammad Ikhlayel Muhammad Aristo Indrajaya Muhammad Nur Alamsyah Mustari, Aidynal Nurhani Amin Prasetyo, Bayu Putra Putra, Wisnu Rahmat Dwi Qisti, Saiful Rizal - Rizal Rizal Rizana Fauzi, Rizana RR. Ella Evrita Hestiandari Rudi Santoso, Rudi Santoso, Rudi Santoso Sari Dewi Selviana Selviana Setijadi, Eko Tan Suryani Sollu Yuli Asmi Rahman Yusnaini Arifin Zakaria, Alamsyah