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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)

Wireless Sensor Network (WSN) can be applied for Air Pollution Level Monitoring System that have been determined by the Environmental Impact Management Agency which isÂ 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

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 90Â° 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

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

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)

Wireless Sensor Network (WSN) can be applied for Air Pollution Level Monitoring System that have been determined by the Environmental Impact Management Agency which isÂ 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

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

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.

Prototipe Sistem Pengkondisian Sirkulasi Udara Pada Lapangan Futsal Mini Dengan Metode Fuzzy Logic Uyun Amalia, Rahma; Wijayanto, Ardik; Rusminto, Tjatur Widodo
ALINIER: Journal of Artificial Intelligence & Applications Vol. 4 No. 1 (2023): ALINIER Journal of Artificial Intelligence & Applications
Publisher : Program Studi Teknik Elektro S1 ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/alinier.v4i1.6043

The implementation of the New Normal is carried out in all aspects of community activities, to keep the body healthy it is necessary to do regular exercise. Futsal is one of the sports that is currently trending and is carried out in a sports hall, so that the futsal field building also needs to reach a new normal. In order to maintain the function of the futsal field as a healthy place, a system is needed to maintain air circulation in the futsal field. Air circulation in the futsal field needs to be controlled in order to maintain the air temperature at a certain temperature and minimize the impact of the spread of the covid19 virus by limiting the number of people in the futsal field building. The system built to realize this is by implementing air circulation control using fuzzy logic with temperature parameters and counting the number of people on the futsal field. The sensors used in this study are DHT22 which functions to measure temperature and IR (InfraRed) sensors which function as a counter for the number of people. The ESP32 module is used for sending data collected from sensor readings via the wifi network to android via the blynk application. The results of the research that has been done is that the Fuzzy control can work well, because it can maintain a temperature of no more than 31.97oC, whereas if you don't use the temperature control it will read 32.84oC and will continue to increase

Data acquisition of flow sensor based to measure water flow in underground drainage Wirama, I Made Adiswara; Widodo, Rusminto Tjatur; Al Rasyid, Muhammad Udin Harun; Oktavianto, Hary
Matrix : Jurnal Manajemen Teknologi dan Informatika Vol. 15 No. 1 (2025): Matrix: Jurnal Manajemen Teknologi dan Informatika
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/matrix.v15i1.9-20

This research focuses on water flow sensors in underground drainage. In Indonesia, the use of sensors and actuators to control and measure water velocity and water discharge in underground drainage is not very popular, although one of the causes of flooding is caused by clogged drainage or workers forgetting to turn on the pump at a certain height and water flow. This paper will explain how to find out the speed and discharge of water in an underground drainage without checking it directly on site. The water flow sensor is used to measure the water velocity and water discharge entering a drainage system. The data acquisition conducted with 3 section, data preparation, data collecting, and data processing. Data preparation is preparing the microcontroller, sensor, and data display to get the data. Data collecting is about collecting the data from sensor in this research the data collected is in pulse that can be calculated to water discharge and water velocity in the data processing. From the experiment, it can be seen that the highest error rate on the sensor is 7.64% and the lowest at 0% or no error with the average amount of error is 2.46%. The data obtained from the sensor can be converted into water velocity and water discharge depending on the shape of the drainage. The length, width and height of the drainage are assumed to be 10x4x3 m respectively, with a constant water level of 2 m, so the water flow sensor is placed at a height of 1 m because the safe height is 1 m. From the case study conducted the error rate of the water flow sensor error is 0%, because the case study conducted using imaginary data. Based from this, the knowledge gained from the research, it can be used to determine the water velocity and water discharge value of underground drainage using water flow sensor, which is expected to be applied to pump houses to more easily determine the state of drainage.

LoRa-Based IoT Recommendations for Surabaya City Drainage Channel Using Multi-Node Multi-Hop Communication Izzulhaq, Muhammad Arya; Widodo, Rusminto Tjatur; Oktavianto, Hary
Jurnal Rekayasa Elektrika Vol 21, No 2 (2025)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v21i2.45095

This paper focuses on the development of a multi-hop LoRa (Long-Range) communication network for real-time monitoring of urban drainage Internet of Things (IoT), specifically simulating the flood-prone area along the drainage channel of Jalan Jawa, Surabaya City. The novelty of this research lies in the selection of the optimal communication environment through path loss and shadowing analysis prior to implementing a multi-node, multi-hop, sensor medium access control (S-MAC) method. The selected environment at the first location demonstrated a lower path loss exponent of 1.55, typical of "in-building line-of-sight," compared to the second location with a loss exponent of 2.82, which resembled "urban area cellular radio." Applying the multi-hop technique successfully extended the data transmission range up to 750 meters with nodes placed at 250 meter intervals while maintaining a high data transfer rate. The experiments showed that increasing distance significantly reduced the received signal strength indicator (RSSI), with values dropping from -52.75 dBm at 150 meters to -98.25 dBm at 750 meters. This paper demonstrates the feasibility of using multi-hop communication rather than the conventional multi-node technique to ensure reliable data transmission and wider range, offering a solid foundation for building a robust communication network in urban drainage monitoring systems.

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