Jurnal Teknologi Riset Terapan

Jurnal Teknologi Riset Terapan (JATRA) is a peer-reviewed journal publishing original and quality research article in the fields of applied research technology. JATRA is expected to connect the gap between theories and practice in science and technology to be applied in daily life.

Jurnal Teknologi Riset Terapan (JATRA) is a peer-reviewed journal publishing original and quality research article in the fields of applied research technology. JATRA is expected to connect the gap between theories and practice in science and technology to be applied in daily life.

Published
2023-01-12

Articles

Identifikasi Platform dan Faktor Sukses dalam Manajemen Proyek Teknologi Informasi

Purpose: Success is something that is always expected, both success in the process and success in achieving goals. Many factors need to be considered to achieve success. One of the things that can help us succeed is how we manage the work we carry out. We must pay close attention to project management for the success of a project. Some platforms can help us carry out project management functions in an increasingly sophisticated era. Methodology: This research is based on a systematic literature review (SLR). Among them are searching for related scientific articles using search tools such as Google Scholar, IEEE, Science Direct, ELSEVIER, and others using specific keywords. Results: Based on the studies that have been carried out, it can be seen that there are tools for information technology (IT) Project Management and explain some of the Success Factors in IT Project Management. Limitations: This study can answer some of the questions that arose for discussion. Q1: What are IT tools for project management? Q2: What influences success in IT management projects? Contribution: This study aims to find software to help the project management process and factors that hinder and support IT projects.

Rancang Bangun Pengaman Pintu Menggunakan RFID Dengan Mikrokontroler Atmega 328

Purpose: The purpose of making a house door safety using an RFID (Radio Frequency Identification) sensor with an ATmega 328 microcontroller is to make a door safety device that is easy, cheap, practical in use to increase comfort and security in opening house doors without having to hold various different keys maybe very annoying. This tool will detect / work after the RFID sensor detects the tag card that is being faced, which will automatically read the tag card to unlock the door in the form of a solenoid. Methodology: The method used in making house door guards uses an RFID sensor with this ATmega 328 microcontroller. Results: This tool has been tested and got results in accordance with the design. And this tool will still be used even if it is not connected to electricity, because this tool uses a backup power supply using a rechargeable battery.

Penggunaan Filler Tanah (Silt) sebagai Perencanaan Campuran Aspal Beton AC-WC

The population growth of Batam City is very rapid, resulting in an increase in the mobility of residents who pass through the highway. Asphalt concrete as a bitumen material consisting of continuous graded aggregates can be used for road construction. The strength of the concrete asphalt lies on the interlocking aggregate grains and a small filler as mortar. The filler material used in this study was of the type of soil (silt) which was limited to a maximum of 2%. Purpose: The purpose of this study was to examine the use of soil filler (silt) as the ac-wc asphalt concrete mixture plan. Methodology: Material tests using the American Standard for Testing and Materials (ASTM 1984) test method. Other test methods used are AASHTO, British Standard and SNI. Results: From the tests, it has been concluded that the planning of a mixture of asphalt concrete with soil filler obtained the aggregate combination results of 31.55% for the coarse aggregate fraction, 55.87% for the fine aggregate fraction and 6.88% for the filler fraction. As for the specific gravity of each fraction, the results were 2.632 grams/cm³ for coarse aggregates, 2.615 grams/cm³ for fine aggregates, 2.510 grams/cm³ for rock ash aggregates, and 2.316 grams/cm³ for soil fillers. All inspections have met the specification standards of SNI, AASHTO, and ASTM, so that the planning of asphalt concrete with soil filler can be used for asphalt concrete pavement layers.

Rancang Bangun Sistem Monitoring Ketinggian Muka Air Laut Menggunakan Arduino Pro Mini dan NodeMCU ESP8266

High waves are sea water level that exceed normal limits and can cause danger at sea and on land, especially in coastal areas. Purpose: Based on this, a realtime water level monitoring system was created by utilizing the IoT (Internet of Things) feature. Methodology: The hardware used consist of the SRF04 ultrasonic sensor which serves to measure the distance of the water surface, the Arduino Pro Mini microcontroller which functions to control and to process the data readings from the ultrasonic sensor, NodeMCU ESP8266 module which functions to connect the microcontroller to the internet (data server), The DS3231 is extremely accurate real-time clock (RTC) which functions to  maintain seconds, minutes, hours, day, date, month, and year information, and Micro sd card module as a storage for offline data (backup). Results: The instrument is designed directly using a 12volt adapter that requires a 220volt AC power source and the LM2596 module which functions as a DC to DC step-down switching regulator. The instrument is applied in the Ketapang Pier, Pesawaran Regency, Lampung Province. Testing of tools and field data were carried out by comparing the distances recorded on the Blynk App and SD Card with average relative difference of 0,205%. There are two programmed water level status, that is normal and hazard.

Analisis Kapasitas Short Message Service (SMS) dan Probability Packet Loss pada Sistem Peringatan Dini Nirkabel di Tangki Fluida

Purpose: In this research a wireless early warning system is designed and examines how to overcome communication errors or delays in information received by operators by analyzing traffic and Blocking Probability SMS (Short Massege Service) in wireless early warning systems on fluid tanks. Methodology: System testing uses the FC 37 sensor as a fluid sensor (which includes electrolytes or can conduct electric current). Results: This early warning system works well and works at a droplet volume of ± 0.5 ml. Based on the calculation of SMS Blocking Probability based on the increasing number of SMS subscribers, the Blocking Probability also increases. For the number of SMS 8448 subscribers the Blocking Probability SMS is 0.0093% and for the number of SMS 11520 subscribers the Blocking Probability SMS is 0.1719%. The Probability of Packet Loss is influenced by the Probability of BER. Probability BER calculation using the modulation used, namely 16-QAM (with a code rate of ½ and ¾) and 64-QAM (with a code rate of 2/3 and ¾) is influenced by the distance of the UE to the BTS. This distance has an effect because the BER Probability calculation uses the Walfish-Ikegami propagation model to calculate Pathloss. At a distance of UE and BTS 0.2 km Probability Packet Loss using 16-QAM ½ 2.55 x 10-14 modulation, 16-QAM ¾ 1.14 x 10-14 modulation, 64-QAM 2/3 3.05 x 10 modulation -9, and 64-QAM ¾ 2.94 x 10-9. The 16-QAM Packet Loss value is smaller than the 64-QAM because the bit values used are different, 16-QAM uses 4 bits while 64-QAM uses 6 bits.

Unjuk Kerja Teknologi Akses Jamak TD-CDMA dan TD-SCDMA pada Infrastruktur Jaringan High Altitude Platform Stations

The rapid development of telecommunications technology, and the increasing demand for access speed, demands additional frequency bandwidth in the telecommunications sector. The most rational solution is to utilize a new telecommunications infrastructure technology that has high capabilities, but is relatively inexpensive, known as HAPS (High Altitude Platform Stations). The access methods that are expected to be technology candidates for HAPS are TD-CDMA (Time Division Code Division Multiple Access) and TD-SCDMA (Time Division Synchronous Code Division Multiple Access). Purpose: In this study, the performance of the two technologies, namely TD-CDMA and TD-SCDMA, is discussed. The parameters tested include access speed, data transfer capacity, and power consumption level. Methodology: Parameters tested include access speed, data transfer capacity, and power consumption level. This performance test is carried out through mathematical calculations to determine the efficiency of the two technologies after being implemented on HAPS. Results: Based on calculations, the  results show that data capacity of TD-CDMA is larger than TD-SCDMA. Additionaly, it can also be found that the transmitted power from HAPS is increase as the distance increased. The maximum transmitted power of 19,423 W was occurredat 50000 meters