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INDONESIA
Jurnal Mahasiswa TEUB
Published by Universitas Brawijaya
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Core Subject : Education,
Education
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Articles 23 Documents
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Search results for , issue "Vol. 12 No. 4 (2024)" : 23 Documents clear
PERANCANGAN SISTEM INVERSE KINEMATICS LENGAN ROBOT OPEN MANIPULATOR-X DENGAN METODE JARINGAN SARAF TIRUAN Nagara, Alun Darma; Muslim, Muhammad Aziz; Nusantoro, Goegoes Dwi
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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The robot manipulator is an example of the advancement in control technology in the current industrial era. Robots with 4 degrees of freedom (DoF) in their movements are often used to increase efficiency and reduce accident risks in the industry. However, in solving the inverse kinematics of the robot manipulator, there is a computational complexity problem in determining the joint angle values. Therefore, this study aims to solve the inverse kinematics problem using artificial neural networks on the Robot OpenMANIPULATOR-X. This research involves data collection through forward kinematics, designing an artificial neural network model by testing the number of hidden layers, neurons, and learning rate, and testing the points of the neural network model results on the robot in a real plant. Keywords—Robot Manipulator, Inverse Kinematics, Artificial Neural Network
APLIKASI TOPOLOGI VIENNA RECTIFIER DENGAN MENGGUNAKAN KONTROLER BERBASIS VOC-PI Rahmah, Linda Safina; Djuriatno, Waru; Rusli, Moch.
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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Penelitian ini menjelaskan aplikasi topologi Vienna Rectifier dengan menggunakan kontroler berbasis VOC-PI. Rangkaian Vienna Rectifier dengan kontroler berorientasi tegangan (VOC) yang dikombinasikan dengan kontroler PI digunakan untuk mengurangi distorsi harmonik dari arus masukan dan regulasi tegangan keluaran. Penulis melakukan simulasi dengan menggunakan perangkat lunak PLECS 4.7.3 untuk membandingkan antara rangkaian penyearah tiga fasa dan rangkaian Vienna Rectifier menggunakan kontroler VOC-PI. Hasil dari simulasi rangkaian penyearah tiga fasa, menunjukkan variasi nilai THD yang cukup tinggi pada berbagai kondisi beban (25%, 50%, 75%, dan 100%) melebihi nilai standar IEEE 519-2014 tentang THD arus masukan, yakni sebesar 21,22%, 27,97%, 32,57%, dan 36,54%. Sedangkan dengan rangkaian Vienna Rectifier dengan tambahan kontrol VOC-PI menunjukkan THD yang lebih kecil dan memenuhi standar arus THD masukan IEEE, yakni sebesar 4,28%, 2,8%, 2,43%, dan2,19%. Kata kunci— Penyearah Tiga Fasa, Vienna Rectifier, VOC-PI, Total Harmonic distortion, PLECS 4.7.3
PERANCANGAN HYBRID SOLAR HOME SYSTEM MENGGUNAKAN GRID TIE INVERTER Pratama, Renaldi Putra; Zainuri, Akhmad; Nurussa’adah, n/a
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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Energy is a basic necessity for society in any country, including Indonesia. The rapid population growth in Indonesia has led to an increase in energy usage across various sectors such as agriculture, education, healthcare, transportation, and the economy. The reliance on non-renewable energy is becoming increasingly concerning, necessitating the utilization of renewable energy sources. One of the solutions that can be adopted is the Solar Power Plant or Solar Home System (SHS). This study designs an Automatic Transfer Switch (ATS) for switching between two power sources, PLN and Grid Tie Inverter (GTI), and designs a circuit to enablethe GTI to operate without being connected to the PLN grid. The SHS circuit using a GTI consists of an ATS and a trigger inverter or low-frequency inverter. The ATS uses two DPDT relays with a current capacity of 10A controlled by an Arduino Nano, equipped with a voltage detector, a zero crossing detector, and current and voltage modules. The low-frequency inverter uses a MOSFET switching circuit, a step-up transformer, and a voltage feedback circuit. The results of the study show that when the trigger inverter is active, the GTI is also active, indicated by a green light on the GTI. The switch from PLN to GTI occurs without delay andwithout waveform differences in the load, although there is a slight, insignificant voltage drop with a time interval of 61ms. This study successfully demonstrates that the ATS and GTI system can function as designed to support the availability of renewable energy in Indonesia. Keywords: SHS, Solar power plant, ATS, GTI.
RANCANG BANGUN PROTOTYPE SISTEM MONITORING PENGATURAN SUHU DAN KELEMBAPAN PADA BANGUNAN RUMAH WALET BERBASIS IOT Sidabutar, Aprillius Mawendra; Nurussa’adah, n/a; Asmungi, Gaguk
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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The walet is a species of bird that provides many health benefits through its nest made of saliva, such as accelerating cellregeneration, strengthening the immune system, and aiding the digestive system. The high selling price of the bird's nest hasprompted many people to cultivate it. Temperature and humidity are important factors in walet cultivation, with the optimaltemperature ranging between 26-29°C and humidity between 80-95%. Bojonegoro district, East Java, is famous for its oil drillingactivity that increases temperature and lowers environmental humidity, making it unsuitable for walet cultivation. Therefore, there is a need for a monitoring system capable of maintaining the temperature and humidity of the walet house at ideal levels. This monitoring system works automatically without human intervention, saving time and effort. The objective of this research is to design and build a prototype temperature and humidity monitoring system based on the Internet of Things (IoT) for walet houses in Bojonegoro District. It is expected that the implementation of this system can significantly improve the quality and quantity of walet nests. Keywords: walet cultivation, temperature and humidity monitoring, Internet of Things (IoT), automatic system.
RANCANG BANGUN SISTEM MONITORING KONSENTRASI CO2, SUHU, DAN KELEMBABAN PADA PROSES BUDIDAYA JAMUR TIRAM BERBASIS INTERNET OF THINGS Marbun, David Yoel; Maulana, Eka; Asmungi, Gaguk
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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Due to their high nutritional content, oyster mushrooms are a valuable food source with increasing demand. However, increasing oyster mushroom production is challenging because they require specific environmental conditions and cannot grow just anywhere. Therefore, it's crucial to adjust the environmental conditions for optimal oyster mushroom cultivation. Base on the problem, there is a need for a system that can adjust environmental conditions to meet the optimal requirements for oyster mushroom cultivation. Oyster mushrooms typically thrive in highland environments. Several environmental parameters that can influence their growth include CO2 concentration (575-731 ppm), temperature (16˚C to 30˚C), and humidity (80-95%). The designed system is expected to measure these environmental parameters using sensors, include the MQ-135 sensor and the DHT22 sensor.Additionally, actuators will be used to control the environmental parameters and bring them to the desired levels, which is exhaust fan and DC pump. The use of these sensors and actuators will be integrated with an ESP32 microcontroller, which can proces and manage the system. To maximize the quality of the oyster mushrooms, the system will utilize the Internet of Things (IoT), for automated and remote monitoring and control of the oyster mushroom cultivation process through the Blynk application. Keywords: Oyster Mushrooms, ESP32, MQ153, DHT22, Exhaust fan, DC Pump, IoT, Blynk
RANCANG BANGUN SMART WATCH PENGUKUR DENYUT NADI, TEKANAN DARAH DAN OXYMETER NONINVASIVE DENGAN SELECTIVE WAVELENGTH SENSOR BERBASIS IOT Prabowo, Muhamad Romadhani; Nurussa’adah, n/a; Hasanah, Rini Nur
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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Stroke is a focal or global neurological disorder that occurs acutely and is related to cerebral circulation disturbances. It occurs when blood cannot reach the brain to supply oxygen and nutrients and to remove waste products, which can lead to brain cell death. Stroke recurrence can be prevented by controlling risk factors such as hypertension, heart disease, and diabetes mellitus. More than 50% of stroke cases are related to hypertension, while 1 in 4 cases are related to high levels of bad cholesterol (Low-Density Lipoprotein/LDL). The aim of this research is to design a wireless sensor system that can measure heart rate, oxygen level, and blood pressure non-invasively, which can be integrated with a microcontroller for transmission to monitoring devices.Photoplethysmography (PPG), as a non-invasive tool for monitoring various cardiovascular parameters, has become popular due to its easy integration with wearable devices and its uniform properties. This research proposes the development of an advanced PPG sensor design using three LED light variants as a light source with fixed wavelengths. The proposed sensor will be integrated with a smartwatch capable of operating in the Internet of Things (IoT) network, creating a more holistic and digitally connected monitoring system. From the testing results of the PPG sensor on the noninvasive smartwatch for measuring heart rate, bloodpressure, and oximeter with selective wavelength sensor based on IoT, the accuracy level of blood pressure readings was found to be 99.8%, heart rate 99.48%, and oxygen levels 99.96%. Testing was performed by comparing the reading data with reference data from commercial sphygmomanometers and oximeters. The smartwatch uses Bluetooth Low Energy communication protocol tocommunicate with Android device applications. The received data is processed and stored in Firebase Cloud Storage. Users can monitor reading history and predict the risk of ischemic stroke. Keywords: Photoplethysmography, Stroke, Internet of Things, MAX30105, ESP32
RANCANG BANGUN SISTEM MONITORING KADAR BIOETANOL PADA ALAT PEMURNIAN BIOETANOL TERINTEGRASI CYBER-PHYSICAL SYSTEM Pasaribu, Dimpos Fransiskus Xaverius; Nurussa’adah, n/a; Setyawati, Onny
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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Currently, the Indonesian government is promoting the development of renewable energy sources as an alternative to etroleum-based fuels. This effort is reflected in Presidential Regulation No. 40 of 2023, which governs policies on the provision of bioethanol as a biofuel. However, not all bioethanol can be used as fuel; only bioethanol with a concentration above 99%, known as fuelgrade, can be utilized. Due to this problem, there is a need to design and build a device capable of purifying regular bioethanol to achieve fuel-grade concentration, equipped with a monitoring system. This monitoring system is implemented to facilitate the testing and analysis of the purification process. The device uses the pervaporation method for purification, utilizing zeolite nanoparticle membranes as the purification medium. The device is equipped with an MQ3 ethanol sensor as the main component of the monitoring system. To enhance monitoring capabilities, the device is also integrated with a Cyber-Physical System. Thisintegration uses the ESP32 microcontroller to transmit data from the purification device to an Android application and an LCD monitor. This provides ease for researchers in directly monitoring the results of the purified bioethanol. From the research and analysis results, it was found that the Bioethanol Purification Monitoring System provided ethanol concentration readings with an average error of ±4% and an accuracy level of ±95%. The performance of the Cyber-Physical System built can transmit readingsfrom the MQ3 sensor to the LCD monitor both via cable and wirelessly using the Bluetooth protocol controlled by the ESP32. Data can be transmitted continuously over a long period without significant interference. The purification system built can purify ethanol from a 70% concentration to 99% with two purification cycles. The first purification cycle produced ethanol with an 84% concentration (a 14% increase), and the second cycle produced ethanol with a 99% concentration (a 15% increase). Keywords: Bioethanol, Monitoring System, CyberPhysical System, MQ3, ESP32
PERBANDINGAN PERFORMA PROTOKOL COAP DAN HTTP PADA MIKROKONTROLER ESP32 SEBAGAI PERANGKAT IOT PEMANTAU KUALITAS UDARA Wijayanto, Micko; Muttaqin, Adharul; Razak, Angger Abdul
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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The development of the Internet of Things (IoT) is driving transformation in various sectors of life. One important aspect of IoT technology is data communication, which has various solutions, including the Internet. With a variety of internet protocol solutions available, appropriate protocol recommendations are needed for IoT needs, such as CoAP or HTTP. This research compares the performance of these two protocols using an ESP32 Microcontroller integrated with MQ7 and DHT11 sensors for air quality monitoring. Performance assessments include data communication network, power consumption, and memory requirements. Implementing the CoAP Protocol requires configuration so that data packets can capture tokens provided by clients. Data communication analysis, using Wireshark software, shows that the average delay of CoAP is 80% higher compared to HTTP, and the average power consumed by CoAP is also 4% greater. However, the average throughput measured is 27% higher in HTTP compared to CoAP, and CoAP's storage efficiency is also 3% better. Meanwhile, both protocols have insignificant differences in data delivery reliability and dynamic memory usage. Keywords: Internet of Things, Microcontroller ESP32, CoAP, HTTP, Performance Comparasion
RANCANG BANGUN SISTEM PENGUKURAN TINGGI TANAMAN SAYUR DAN SISTEM MONITORING PERTUMBUHAN TANAMAN MENGGUNAKAN METODE REGRESI POLINOMIAL Fadhlurrahman, Adam Farrel; Nurussa’adah, n/a; Siwindarto, Ponco
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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Plant height is an important indicator to show the performance of the media or agricultural land. Therefore, this research aims to realize an effective and efficient plant height measurement system for lettuce vegetable cultivation using ultrasonic sensors, and realize a growth monitoring system. The sensor measurement data is processed using the polynomial regression method to determine the plant growth graph. Ultrasonic sensor testing for plant height measurement shows the largest error value that occurs is 0.045%. The monitoring system test results show that all sensor data can be displayed on the TFT display and the measurement results are successfully stored in the Micro SD Card. Overall, the lettuce plant height measurement system using two ultrasonic sensors shows the results of the regression equation y = 0.0025x2 + 0.4976x - 1.5397 and y = -0.002x2 + 0.6246x - 2.4707. The polynomial regression equation is used to generate growth notifications displayed on the TFT display. With this system, it is expected to facilitate farmers in monitoring plant growth and decision making. Keywords— Plant Height Measurement, Monitoring System, Ultrasonic Sensor, Polynomial Regression.
EVALUASI SUSUT DAYA PADA JARINGAN DISTRIBUSI PENYULANG GRAHA KOTA DI KABUPATEN SIDOARJO DENGAN METODE MODIFIED CARSON Rifki, Mohammad Ya’kub Rizal; Hasanah, Rini Nur; Wijono, n/a
Jurnal Mahasiswa TEUB Vol. 12 No. 4 (2024)
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Electrical power loss is a crucial issue for PLN. To avoid a total blackout on the system, rotating blackouts are often carried out. This causes the electrical power supplied to consumers to be smaller than it should be. This power loss always exists because the equipment used does not have a 100% efficiency level. There are developments in the electricity distribution network which is becoming more complex with an increase in consumers, the addition of new branches, and variations in load additions. More systematic methods are needed to calculate and manage these losses. In this research, the Modified Carson calculation process and simulation were carried out using the ETAP 19.0.1 application which aims to determine the power loss in the Graha Kota feeder. In this feeder there are 2 types of phase cables, namely 150 mm2 and 240 mm2 phase cables, and a load of 15391.26 kVA, then this data is entered into the Modified Carson calculation to get the Modified Carson impedance value. Then a simulation is carried out on the ETAP 19.0.1 application to get the results of existing losses and Modified Carson power losses. From the results of the analysis carried out, the percentage of total power loss to the existing system power is 7.49%. Meanwhile, the percentage of total power loss on the power of the Modified Carson system produces a total power loss percentage of 10.69%. The percentage difference between the two methods is 3.2%. Referring to SPLN 1:1987, the permitted power loss is only 10%, so the calculation results of the Modified Carson method which involves more accurate impedance do not meet the established standards, so efforts are needed to reduce losses on the Graha Kota feeder. Keywords: Power Loss, Feeder, Distribution

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