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Rachmad Andri Atmoko
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INDONESIA
Indonesian Journal of Engineering Research
Published by Future Science
ISSN : -     EISSN : 27471438     DOI : http://dx.doi.org/10.11594/ijer
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Indonesian Journal of Engineering Research Journal (IJER) is international journal aimed to the development of fundamental theoretical knowledge in engineering as well as the application of the technological development in engineering fields including: Civil Electrical Mechanical Industrial Chemical Informatics Environmental and Renewable Energy or multidisciplinary in engineering. We accept original scientific papers reporting on original theoretical or practical research results with sufficient data. We also accept papers that contribute to the implementation of scientific results for practical use.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 25 Documents
 1   2   3 
Automatic Liquid Filling Machine using Flow Sensor and Arduino Pro Mini Rahmad Hidayat; Handayani Saptaji Winahyu
Indonesian Journal of Engineering Research Vol 1 No 1 (2020): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.01.01.05

Abstract

The Small Industries Enterprise (SME), which is especially involved in the liquid filling industry (such as mineral water, tea, liquid milk, juice, etc.), needs some device that has the ability to measure liquid automatically and accurately into some container. Based on the 'Water Fall' method, this study carries out a procedure for making compact and efficient tools ('requirements definition' stage), using a keypad start button, flow sensor, temperature sensor, fan, buzzer, LCD 1602, relay driver ('system & software design' stage), implement a schematic drawing of the circuit and install all hardware inside the casing ('implementation and unit testing' stage), install accessories, set parameters and volume target ('integration and system testing ' stage) and re-calibrate the device ('operation and maintenance' stage). After the measurement experiment, we got that Fillco (the name of the device) has a bigger error for measurement below 1000 ml (0.6-15%) and better accuracy measurement for targeted volume upper than 1000 ml (0.04-0.20%). Fillco also able to memorize and reset liquid volume.
Network File System Implementation on Computer-Based Exam Sumarna -; Felix Wuryo Handono; Hafis Nurdin
Indonesian Journal of Engineering Research Vol 1 No 1 (2020): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.01.01.04

Abstract

In the world of education, exam is the final stage to evaluate the student abil-ity. The length of the correction process and the expensive cost of printing for manually exams are obstacles that often occurs when administering the ex-ams. Computer-based exams is an effort that is present to solve the problems, by using a computer, then the cost of printing documents and others can be minimized, besides that there is no need for manually correction time, be-cause when students finished the exam, the student's grades can be immedi-ately known. So many advantages are offered by computer-based exams but of course there are still problems that arise. The most common thing is the slow server in processing requests from clients when accessed together, in-creasing the number of servers using Network File Server is one of the efforts to correct the shortcomings of computer-based exams. Using Network File Server is expected to be able to overcome these problems.
Applied K-Nearest Neighbors (KNN) on Dust Supression Prototype Ryan Yudha Adhitya; Agung Kurniawan Nurhasan; Hendro Agus Widodo; Rachmad Andri Atmoko
Indonesian Journal of Engineering Research Vol 1 No 1 (2020): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.01.01.03

Abstract

Steam power plants that use coal as fuel have serious problems during operation. Before heading to the combustion process, coal is stored in an open field area. However, this results in fine particles of coal dust being exposed to wind and polluting the surrounding environment. The purpose of this study is to minimize the impact of pollution from coal dust by using the dust suppression tool. The tools that have been run manually or conventionally can be operated automatically to facilitate the operator in controlling dust suppression without the need to go to the field. This research proposes a prototype dust suppression equipped with dust and temperature sensors, the sensor data is a representation of the condition of the coal storage area which is processed using the K-Nearest Neighbors method to classify whether the condition of the storage area is normal or dusty. When conditions are dusty, the pump activates and directs bursts of water at the coal to minimize dust. In the application of the K-Nearest Neighbors method, center point 1 is obtained for normal conditions, with a dust density of 0.4353 mg / m3 and a temperature of 27.5818 °C. Whereas center point 2 for dusty conditions has a dust density of 2,374 mg / m3 and a temperature of 28.2667 °C. From 40 testing data in real-time, a success rate of 87.5% was obtained.
Electronic Equipment Loads Telemetry in Ferry Ship Passenger Room Based on Long Range Wireless Communication (LoRA) Aldian Dwi Pamungkas; Lilik Subiyanto; Afif Zuhri Arfianto; Hendra Agus Widodo; Rachmad Andri Atmoko
Indonesian Journal of Engineering Research Vol 1 No 1 (2020): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.01.01.01

Abstract

The development of information technology both software and hardware support development in various fields, especially in the field of electronics. This progress can be used in making automation systems and controlling electronic and electrical components. With the increasing need for system monitoring in real-time, a model that is more than just portable storage can be developed, using telemetry (remote measurement) systems. This research makes a prototype that is used for remote monitoring of electronic equip-ment telemetry in the passenger space of ferries using wireless communica-tions. Radiofrequency is used for electronic equipment located in the passen-ger space. The system is made using ACS 712 current sensor and ZMPT 101B voltage sensor to measure current and voltage monitored by long-range wire-less communications (LoRa) to maintain the strength of the amplifier signal and the distance that the LoRa can reach. By utilizing the frequency of the LoRa, it is expected to monitor the load current and voltage generated by electronic equipment in the ferry passenger's passenger space. From the monitoring tool obtained the test results of testing Television with power 27 W and Voltage 19 Volt obtained the percentage of voltage error is 1.09 % and the percentage of current error is 1.15 %.3. Based on the results of the test data, it can be concluded that the current, voltage in the passenger room of the JokoTole KMP ship is fluctuating. This needs to be done monitoring the current load on the ship, especially in the safety alarm system, electronic de-vices, pumps for the safety of shipping, which at KMP Joko Tole still uses con-ventional technology and the absence of adequate electrical system data sup-port.
THe Analysis of Library Visitor Satisfaction Using the Servqual Method Rini Agustina; Dodit Suprianto; Nandono Cahyo
Indonesian Journal of Engineering Research Vol 1 No 1 (2020): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.01.01.02

Abstract

The purpose of this study was to determine the level of satisfaction of library services with the SERVQUAL method based on five dimensions, such as tan-gible, reliability, responsiveness, assurances, and empathy. The satisfaction evaluation of library services is needed because the number of library visitors is increasingly decreasing. This study tries to find out the things that cause the number of library visitors to decrease while knowing what services need to be improved. Based on the results of library service evaluation tests, 68% of visitors said they were not satisfied with library services, with an average value of SERVQUAL (-0.2) from 25 criteria and 105 respondents. This data shows some library services that must be repaired by schools by improving facilities and services to visitors.
The 3in1 Robot Design for Medical Assistant on 2019-nCoV case Syamsiar Kautsar; Robby Ardiansyah; Muhammad Mashfuks; Khafidurrohman Agustianto
Indonesian Journal of Engineering Research Vol 2 No 1 (2021): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.02.01.01

Abstract

Covid-19 (Coronavirus disease 2019) is a new coronavirus (SARS-CoV-2) that is known to have originated in Wuhan, China. It was found at the end of December 2019 with countries infected with the Coronavirus in more than 65 countries. According to WHO data as of the 4th of March 2020, the number of sufferers was 90,308 infected with Covid-19. In Indonesia as of April 14, 2010, people with Covid-19 were positive for 4,839, recovered 426, and died 459. In Indonesia, one of the ways to tackle the Covid-19 pandemic is by spraying with disinfectant liquid and delivering food or medicine to patients infected with Covid. -19 is still in close contact with a patient who is still likely to be infected from that patient. According to general guidelines in dealing with the Covid-19 pandemic, one of them is done by spraying disinfectants in several public facilities such as health clinics, government office, schools, bridges, parks, fields, and other public areas. However, sterilization is still done manually by health workers. This puts medical personnel at risk of being exposed to the covid-19 virus. Therefore, in this study, a multi-functional robot with a remote control equipped with an FPV camera was developed. The robot can be used to spray disinfectant, UV lamp-based sterilization, and deliver food and medicine to patients infected with Covid-19. From the test results, the teleoperation system can work well with a range of 30 meters indoors and 150 meters outdoors.
Adaptive filter and pulse-shaping for interference cancellation of differential quadrature phase-shift keying modulation Rahmad Hidayat; Farhan Adani
Indonesian Journal of Engineering Research Vol 2 No 1 (2021): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.02.01.02

Abstract

Differential quadrature phase-shift keying (DQPSK) modulation methods and variations are commonly used in wireless communication, including high-speed optical fiber, Bluetooth, and satellite communication. DQPSK cannot be isolated from possible interference with its present application. The interference cancellation process has been observed and analyzed using a device model built in this study. The core components of the supporting block for this device model have raised cosine filters for pulse shaping and adaptive filters. The presence of these core components has resulted in a dramatic improvement in device efficiency, according to robust Simulink data. The best bit error rate (BER) of 5.7e-03 provides evidence of this.
Smart Safe Deposit Box Based on Internet of Things Mohamad Abdul Wahid Romadhoni; Naufal Majdi; Purwidi Asri
Indonesian Journal of Engineering Research Vol 2 No 1 (2021): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.02.01.04

Abstract

The development of Internet of Things technology today is overgrowing in various fields, one of which is security. Safe-deposit box system is considered less safe because there is no warning to the owner. This study proposes a safe deposit box system that has a token security feature based on the internet of things. This system uses a webcam that functions to take pictures automatically. The image is sent to the server via the FTP protocol. It has two levels of users, namely admin, and guest. This system has a warning alarm, and notifications feature that works when the safe door is opened by force. Keyword: internet of things, safe deposit box
The Portable Carbon Monoxide (CO) and Hydrocarbons (HC) Gas Detection System in The Car Cabin Uses The MQ-9 and TGS 2610 Sensors Mochamad Irwan Nari; Januar Ajie Laksono; Bachrul Ulum Hidayat; Ahmad Robiul Awal Udin
Indonesian Journal of Engineering Research Vol 2 No 1 (2021): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.02.01.03

Abstract

The increase in the number of vehicles especially cars causes the air environment to look polluted. This is caused by vehicle exhaust gases that can affect the level of human health. Harmful gases such as carbon dioxide (CO) and hydrocarbon (HC) can also enter the car cabin, making people inside feel suffocated and even death. To find out the presence of these gases, a monitoring system prototype is made which is placed in the car cabin. This system consists of input in the form of an MQ-9 sensor and a TGS2610 sensor. The readings of these sensors are processed by Arduino Uno. The system output is made in the form of a buzzer and LCD. Tests carried out on the car cabin area are divided into three, namely front, middle, and rear. The results of the 6 tests show that the smallest percentage of CO errors is 8% in the middle area and HC of 8.7% in the rear area of the car cabin.
Design of a Robotic Humanoid for Surveillance Application David Odu Agbo; Jonathan A. Enokela; Goshwe Y. Nentawe
Indonesian Journal of Engineering Research Vol 2 No 1 (2021): Indonesian Journal of Engineering Research
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijer.02.01.05

Abstract

The evolution of robotics and their control systems have made the placement of arms, their motion, grasping of objects, as well as exploring their immediate environments a very important area of research. The electronic design and implementation of the humanoid which involves the keypad and graphical user interface (GUI) to track the movement of the humanoid robot as well as control the humanoid robot in performing the tasks of avoidance of obstacles and picking of objects is achieved. The system is made of two units: the remote controller unit and the humanoid control unit. The remote controller unit is of two types namely; the keypad and the GUI. The keypad uses the buttons to control or direct the humanoid while the GUI does the control using PC. The GUI has the additional function of viewing the picture taken by the humanoid, if the arrangement of an obstacle is not included among the sixteen obstacle avoidance algorithms considered. The humanoid control unit makes the humanoid walk and avoid obstacles autonomously. The simulation of robotic humanoid and hardware results also show that the hardware implementation can be embedded into the humanoid frame for surveillance applications

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