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IMPLEMENTASI LOGIKA FUZZY UNTUK AKUISI DATA BERBASIS WEB SERVER Ismail, Munaf; Haddin, Muhamad; Suprajitno, Agus
Prosiding SNATIF 2015: Prosiding Seminar Nasional Teknologi dan Informatika
Publisher : Prosiding SNATIF

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

Abstract

Abstrak Pelaksanaan praktikum di laboratorium sering ditemukan kesalahan pengukuran dan kesalahan pembacaan alat ukur. Kesalahan di dalam praktikum menyebabkan data yang didapat tidak sesuai yang diharapkan. Terkadang juga dijumpai kesamaan data percobaan praktikan satu dengan lainya, berarti data percobaan tersebut disangsikan keasliannya. Penelitian ini untuk mengurangi kesalahan pengukuran dan kesalahan pencatatan dalam praktikum dengan menggunakan instrumentasi yang mampu menunjukkan tingkat ketelitian dan memilih hasil pengukuran yang paling sedikit kesalahannya dengan metode fuzzy. Hasil penelitian menunjukan bahwa metode logika Fuzzy efektif untuk memberikan rekomendasi pengukuran praktikum didasarkan pada nilai derajatkeanggotaan danfire strength(nilai kebenaran) dari proses perhitungan pada aplikasi tersebut. Kata kunci: Akuisisi Data, Fuzzy, Web Server
COLOUR DETECTOR TOOL USING TCS3200 AND ARDUINO UNO FOR BLIND AND CHILD Mohamad Habib Ahsan; Arief Marwanto; Agus Suprajitno
Journal of Telematics and Informatics Vol 6, No 1: March 2018
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (635.994 KB) | DOI: 10.12928/jti.v6i1.

Abstract

Color detector using TCS3200 that can help the independence of the blind category of low vision in daily life and help improve children’s enthusiasm for learning colors early age. Creation tool TCS3200 color detection is based on the large number of persons with special needs, so this tool can be independent again in everyday life, esppecially on matters relating to the colors. The method used is a model of research and development, starting from planing concept and manufacture of hardware product design to final testing tools as well as the customization tools. The results show that the prototype device is able to conduct perform color detector recognize by voice. For the blind peoples, the prototype of color detection is able perform well by expresse the statement of 80%, whenever the juvenile has state that prototype is able to perform color detection is 70%.Color detector using TCS3200 that can help the independence of the blind category of low vision in daily life and help improve children’s enthusiasm for learning colors early age. Creation tool TCS3200 color detection is based on the large number of persons with special needs, so this tool can be independent again in everyday life, esppecially on matters relating to the colors. The method used is a model of research and development, starting from planing concept and manufacture of hardware product design to final testing tools as well as the customization tools. The results show that the prototype device is able to conduct perform color detector recognize by voice. For the blind peoples, the prototype of color detection is able perform well by expresse the statement of 80%, whenever the juvenile has state that prototype is able to perform color detection is 70%.
Single observer speed sensorless field weakening control of two parallel motors Suprajitno, Agus; Yusivar, Feri; Halim, Abdul
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 4: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i4.pp2058-2067

Abstract

Two induction motors with parallel connected stator windings supplied by a single inverter (single observer) with a field weakening control system. The objective of this study is to propose a torque production speed sensorless vector control technique for each parallel connected rotor by adding field weakening control to improve the performance of each motor and reducing the number of adaptive observers on each motor to a single observer. Design of a rotor flux-oriented control (RFOC) system. Simulation results with the C-MEX S-function of MATLAB/Simulink 2015b show that the proposed method works better and can be operated at speeds that exceed the nominal speed of the motor.
Rancang Bangun Alat Pendeteksi Level Paparan Gas Formalin Pada Ruang Penyimpanan Laboratorium Fadillah, Yudar; Budisusila, Eka Nuryanto; Suprajitno, Agus
LANCAH: Jurnal Inovasi dan Tren Vol. 3 No. 1 (2025): DESEMBER 2024 - MEI 2025
Publisher : Lembaga Otonom Lembaga Informasi dan Riset Indonesia (KITA INFO dan RISET) - Lembaga KITA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ljit.v3i1.3447

Abstract

Formalin is a hazardous chemical commonly used in laboratories, especially for specimen preservation. Ensuring safe handling and storage is crucial to minimize risks. This research aims to design and build a device to detect formaldehyde gas in laboratory storage rooms. The device uses a DFRobot formaldehyde gas sensor to detect formalin concentration, processed by Arduino and displayed on an LCD. It features a buzzer for alerts, a servo motor for exhaust control, and a DC fan for air circulation. The system is supported by an LM2596 step-down module and a 12V power supply. Results show the device effectively detects formaldehyde gas and provides warnings when concentrations exceed safe thresholds, while also reducing formalin levels through improved air circulation.
Analisa Perencanaan Pembangkit Listrik Tenaga Surya Atap dengan Sistem Hybrid di PT. Koloni Timur Sudarjo, Noor Hajir; Haddin, Muhamad; Suprajitno, Agus
Elektrika Vol. 14 No. 1 (2022): April 2022
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v14i1.3784

Abstract

This study discusses the Planning of a Rooftop Solar Power Plant with a Hybrid System at PT East Colony Kudus. Themodel is set as a PLTS whose solar panels are adjusted to the roof area of the building. This PLTS is functioned as a newrenewable energy resource (EBT) in the form of a hybrid between PLTS and PLN's electrical energy source, this is done tohelp supply electricity. Parameters determined include: roof area, solar panel capacity, inverter capacity, battery capacityand payback period. The results show that PLTS with a total of 80 solar panels installed with a capacity of each panel 405Watt peak, then obtained a power capacity of 32.4 kilo Watt peak which is divided into 5 arrays, with a solar charger controllerand inverter using a 10kW capacity of 5 units, 80 batteries with a capacity of 400Ah. So that PLTS is able to contribute 39.3%of the total power needed by PT East Colony (electric power from PLN is 60.7%). This hybrid payback period will return after8 years and 7 months.