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All Journal Mechatronics, Electrical Power, and Vehicular Technology PROSIDING CSGTEIS 2013 EMITTER International Journal of Engineering Technology INOVTEK POLBENG Jurnal Segara
Rusminto Tjatur Widodo
Politeknik Elektronika Negeri Surabaya
Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology

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Dynamic Sleep Scheduling on Air Pollution Levels Monitoring with Wireless Sensor Network Abror, Gezaq; Widodo, Rusminto Tjatur; Al Rasyid, M. Udin Harun
EMITTER International Journal of Engineering Technology Vol 5, No 2 (2017)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (642.333 KB) | DOI: 10.24003/emitter.v5i2.185

Abstract

Wireless Sensor Network (WSN) can be applied for Air Pollution Level Monitoring System that have been determined by the Environmental Impact Management Agency which is  PM10, SO2, O3, NO2 and CO. In WSN, node system is constrained to a limited power supply, so that the node system has a lifetime. To doing lifetime maximization, power management scheme is required and sensor nodes should use energy efficiently. This paper proposes dynamic sleep scheduling using Time Category-Fuzzy Logic (Time-Fuzzy) Scheduling as a reference for calculating time interval for sleep and activated node system to support power management scheme. This research contributed in power management design to be applied to the WSN system to reduce energy expenditure. From the test result in real hardware node system, it can be seen that Time-Fuzzy Scheduling is better in terms of using the battery and it is better in terms of energy consumption too because it is more efficient 51.85% when it is compared with Fuzzy Scheduling, it is more efficient 68.81% when it is compared with Standard Scheduling and it is more efficient 85.03% when compared with No Scheduling.
A Trajectory Generation Method Based on Edge Detection for Auto-Sealant Cartesian Robot Maarif, Eka Samsul; Pitowarno, Endra; Widodo, Rusminto Tjatur
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 5, No 1 (2014)
Publisher : Research Centre for Electrical Power and Mechatronics, Indonesian Istitutes of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3665.132 KB) | DOI: 10.14203/j.mev.2014.v5.27-36

Abstract

This paper presents algorithm ingenerating trajectory for sealant process using captured image. Cartesian robot as auto-sealant in manufacturing process has increased productivity, reduces human error and saves time. But, different sealant path in many engine models means not only different trajectory but also different program. Therefore robot with detection ability to generate its own trajectory is needed. This paper describes best lighting technique in capturing image and applies edge detection in trajectory generation as the solution. The algorithm comprises image capturing, Canny edge detection, integral projection in localizing outer most edge, scanning coordinates, and generating vector direction codes. The experiment results show that the best technique is diffuse lighting at 10 Cd. The developed method gives connected point to point trajectory which forms sealant path with a point to next point distance is equal to 90° motor rotation. Directional movement for point to point trajectory is controlled by generated codes which are ready to be sent by serial communication to robot controller as instruction for motors which actuate axes X and Y directions.
A Trajectory Generation Method Based on Edge Detection for Auto-Sealant Cartesian Robot Eka Samsul Maarif; Endra Pitowarno; Rusminto Tjatur Widodo
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 5, No 1 (2014)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2014.v5.27-36

Abstract

This paper presents algorithm ingenerating trajectory for sealant process using captured image. Cartesian robot as auto-sealant in manufacturing process has increased productivity, reduces human error and saves time. But, different sealant path in many engine models means not only different trajectory but also different program. Therefore robot with detection ability to generate its own trajectory is needed. This paper describes best lighting technique in capturing image and applies edge detection in trajectory generation as the solution. The algorithm comprises image capturing, Canny edge detection, integral projection in localizing outer most edge, scanning coordinates, and generating vector direction codes. The experiment results show that the best technique is diffuse lighting at 10 Cd. The developed method gives connected point to point trajectory which forms sealant path with a point to next point distance is equal to 90° motor rotation. Directional movement for point to point trajectory is controlled by generated codes which are ready to be sent by serial communication to robot controller as instruction for motors which actuate axes X and Y directions.
Penumbuhan Nano-kristal TiO2 Sebagai Bahan Fotokatalis dengan Teknik Sintesis Elektro-kimia Anodisasi Rusminto Tjatur Widodo; Hendhi Hermawan; Zainal Arief; Endah Suryawati Ningrum; Ahmad Hendriawan
PROSIDING CSGTEIS 2013 CSGTEIS 2013
Publisher : PROSIDING CSGTEIS 2013

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

Abstract

Abstrak—Titania (TiO2) adalah semikonduktor yang banyak digunakan untuk bahan divais elektronika seperti sensor maupun solar cell yang berprinsip foto-katalis. Beragam cara untuk menumbuhkan kristal titania, yang diantaranya adalah sintesis elektro-kimia anodisasi. Salah satu langkah penting untuk pembuatan divais elektronika adalah penumbuhan kristal thin-film. Dalam penelitian ini telah berhasil dibuat penumbuhan kristal titania berukuran nano dengan teknik anodisasi. Kristal titania yang dihasilkan berupa tube dengan diameter rata-rata sekitar 50 nm dengan panjang sampai dengan 300 nm, dengan struktur rutile dan energi band-gap 3,2 eV.Kata kunci—titania; foto-katalis; kristal thin-film; anodisasi;rutile.
Dynamic Sleep Scheduling on Air Pollution Levels Monitoring with Wireless Sensor Network Gezaq Abror; Rusminto Tjatur Widodo; M. Udin Harun Al Rasyid
EMITTER International Journal of Engineering Technology Vol 5 No 2 (2017)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (642.333 KB) | DOI: 10.24003/emitter.v5i2.185

Abstract

Wireless Sensor Network (WSN) can be applied for Air Pollution Level Monitoring System that have been determined by the Environmental Impact Management Agency which is  PM10, SO2, O3, NO2 and CO. In WSN, node system is constrained to a limited power supply, so that the node system has a lifetime. To doing lifetime maximization, power management scheme is required and sensor nodes should use energy efficiently. This paper proposes dynamic sleep scheduling using Time Category-Fuzzy Logic (Time-Fuzzy) Scheduling as a reference for calculating time interval for sleep and activated node system to support power management scheme. This research contributed in power management design to be applied to the WSN system to reduce energy expenditure. From the test result in real hardware node system, it can be seen that Time-Fuzzy Scheduling is better in terms of using the battery and it is better in terms of energy consumption too because it is more efficient 51.85% when it is compared with Fuzzy Scheduling, it is more efficient 68.81% when it is compared with Standard Scheduling and it is more efficient 85.03% when compared with No Scheduling.
DATA AKUISISI FOTOELEKTROKATALIS PADA SENSOR CHEMICAL OXYGEN DEMAND (COD) BERBASIS TiO2 Hendhi - Hermawan; Rusminto Tjatur Widodo; Zainal - Arief
INOVTEK POLBENG Vol 9, No 1 (2019): INOVTEK VOL.9 NO 1 - 2019
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1230.198 KB) | DOI: 10.35314/ip.v9i1.886

Abstract

Model sistem data akuisisi fotoelektrokatalis untuk aplikasi sensor COD (Chemical Oxygen Demand) telah berhasil dikembangkan. Model sistem data akuisisi terdiri dari 3 bagian utama yaitu voltametry, rangkaian potensiostat, dan unit perhitungan nilai COD. Sebuah model dibuat dalam aristektur Lavenberg-Marquardt dengan 10 neuron, digunakan sebagai simulator sistem fotoelektrokatalis dengan karakteristik yang mirip dengan photo-current yang dibangkitkan pada lapisan tipis TiO2. Parameter pada model sistem data akuisisi menggunakan parameter hardware National Instruments (NI) myDAQ dan Op-Amp CA3140. Pengujian sistem data akuisisi menggunakan model sistem fotoelektrokatalis dilakukan dengan LSV (Linear Scan Voltametry) yang memiliki range 0.10-0.11V dan scan-rate 0.5V/jam. Hasil pengamatan pada plotting data photo-current untuk 10 level konsentrasi sample uji (mewakili 1-500uM) menunjukkan bahwa sistem akuisisi data dapat membaca perubahan nilai-nilai data photo-current selama eksperimen dijalankan.  Unit perhitungan nilai COD telah mampu mengitung nilai QNET yang dapat digunakan untuk penentuan nilai COD, untuk 10 jenis sample uji yang digunakan. Model yang dikembangkan ini dapat digunakan untuk menentukan parameter yang sesuai pada sistem data akuisisi fotoelektrokatalis yang akan diimplementasikan pada hardware seperti modul DAQ maupun perangkat embedded controller yang berbasis low speed processor.
Salinity Sensor Development for Pond Water Utilizing Ultrasonic Wave Dananjaya Endi Pratama; Agus Indra Gunawan; Rusminto Tjatur Widodo; Akhmad Hendriawan
Jurnal Segara Vol 18, No 2 (2022): August
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/segara.v18i2.10932

Abstract

Shrimp farming is one of the most popular aquaculture activities in Indonesia. This activity is carried out in a pond. Therefore, there are many ponds as a place for shrimp farming in Indonesia. Several factors affect the results of shrimp farming in ponds. One of the factors is water quality. Four parameters that are commonly used to indicate water quality i.e. dissolve oxygen, salinity, PH, and temperature. In this study, we discussed salinity measurement. Most salinity sensors use the probe principle in measurement. When the sensors are used to measure the water that contains mineral salts, the probe will be susceptible to rust and cause measurement errors. Based on these conditions, we conducted a study of salinity measurements by using the acoustic technique. The measurement was carried out by using an ultrasonic wave. The water salinity was determined based on the acoustic intensity and acoustic speed. In this research, we developed a conversion curve based on the measurement of acoustic intensity from NaCl, KCl, and MgCl2 saline solutions with certain concentrations. The conversion curve is used to measure salinity in pond water. We also calculated salinity based on the measurement result of acoustic speed. From the experiment, the NaCl conversion curve became the most suitable for salinity measurement. The measurement result of salinity in pond water from the NaCl saline solution conversion curve was very close to the results of Del Grosso formula, Chen Millero formula, and refractometer.
Co-Authors Agus Indra Gunawan Ahmad Hendriawan Akhmad Hendriawan Dananjaya Endi Pratama Eka Samsul Maarif Endah Suryawati Ningrum Endra Pitowarno Endra Pitowarno Gezaq Abror Hendhi - Hermawan Hendhi Hermawan M Udin Harun Al Rasyid, M Udin Harun Zainal - Arief Zainal Arief