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INDONESIA
Journal of Telematics and Informatics
Published by IAES Indonesia Section and Partners
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering
Journal of Telematics and Informatics (e-ISSN: 2303-3703, p-ISSN: 2303-3711) is an interdisciplinary journal of original research and writing in the wide areas of telematics and informatics. The journal encompasses a variety of topics, including but not limited to: The technology of sending, receiving and storing information via telecommunication devices in conjunction with affecting control on remote objects; The integrated use of telecommunications and informatics; Global positioning system technology integrated with computers and mobile communications technology; The use of telematic systems within road vehicles, in which case the term vehicle telematics may be used; The structure, algorithms, behavior, and interactions of natural and artificial systems that store, process, access and communicate information; Develops its own conceptual and theoretical foundations and utilizes foundations developed in other fields; and The social, economic, political and cultural impacts and challenges of information technologies (advertising and the internet, alternative community networks, e-commerce, e-finance, e–governance, globalization and security, green computing, ICT for sustainable development, ICT in healthcare and education, management and policymaking, mobile and wireless communications, peer-to-peer learning, regulation of digital technologies, social networking, special user groups, the 2.0 paradigm, the WWW, etc). The journal is a collaborative venture between Universitas Islam Sultan Agung (UNISSULA), Universitas Ahmad Dahlan (UAD) and Institute of Advanced Engineering and Science (IAES) Indonesia Section.
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 7, No 3: SEPTEMBER 2019" : 7 Documents clear
STATCOM Application for Reactive Power Compensation On Distribution of PLTMH Curug Muncar Ghoni Musyahar; Muhammad Haddin; Arief Marwanto
Journal of Telematics and Informatics Vol 7, No 3: SEPTEMBER 2019
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jti.v7i3.

Abstract

Among the sources of electrical energy used in remote areas or mountains are using micro hydro power plants (PLTMH). The problem that arises in PLTMH Curug Muncar is the low power factor (cos ϴ) in the distribution. The power factor measured in users / consumers is an average of 0.7. One of the reasons for this is the varied type and use of loads on consumers, resulting in waste reactive power.               As an alternative solution to these problems is to compensate for electrical power to load changes that are very dynamic. From the reference, it shows that the Static Synchronous Compensator (STATCOM) is the most effective reactive power compensator.               STATCOM is located in the position between the generator and load variation. The reactive power settings by STATCOM occur by comparing the value of the terminal voltage between STATCOM and the system. If the STATCOM voltage is lower than the system, the STATCOM will absorb reactive power from the system. Meanwhile, if the STATCOM voltage is higher than the system, the STATCOM will generate reactive power to the system               STATCOM is able to compensate for reactive power with a very fast time (0.3 seconds) and is able to absorb or provide reactive power to the distribution. STATCOM is able to change cos θ from 0.7 to 0.93. The repaired voltage is close to the given Vrms value. Keywords: PLTMH. STATCOM, Reactive Power
SIMBOX Identification Using K-Nearest Neighbor Based On Spectrum Analyzer Agung Suryowibowo; Imam Much Ibnu Subroto; Eka Nuryanto Budi Susila
Journal of Telematics and Informatics Vol 7, No 3: SEPTEMBER 2019
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jti.v7i3.

Abstract

Telecommunication Service Provider should deal with illegal players (grey operators) who do not have permission to conduct international voice service. These illegal players perform their activities by passing international incoming traffic using Simbox devices. To identify visual simbox usage is very difficult and less reliable, therefore by using spectrum analyzer and K-Nearest Neighbor (K-NN) method is one way to identify simbox usage. The attributes used in the identification process are Location / Document, Strong Frequency Signal, and by applying K-NN algorithm based on proximity of training data with data testing. The determination of this attribute is based on GSM DCS 1800 MHz uplink frequency measurement in Cilacap and Banyumas area. The identification process was conducted on six frequencies points on 18 data with the largest signal strength as training data. Moreover, the signal strength data testing  by using 32 data gives result 81.25% accuracy. The results of K-NN algorithm calculations can be implemented to identify the use of simbox, hence it can be used as a reference for mobile operators to identify simbox usage in other areas.Telecommunication Service Provider should deal with illegal players (grey operators) who do not have permission to conduct international voice service. These illegal players perform their activities by passing international incoming traffic using Simbox devices. To identify visual simbox usage is very difficult and less reliable, therefore by using spectrum analyzer and K-Nearest Neighbor (K-NN) method is one way to identify simbox usage. The attributes used in the identification process are Location / Document, Strong Frequency Signal, and by applying K-NN algorithm based on proximity of training data with data testing. The determination of this attribute is based on GSM DCS 1800 MHz uplink frequency measurement in Cilacap and Banyumas area. The identification process was conducted on six frequencies points on 18 data with the largest signal strength as training data. Moreover, the signal strength data testing  by using 32 data gives result 81.25% accuracy. The results of K-NN algorithm calculations can be implemented to identify the use of simbox, hence it can be used as a reference for mobile operators to identify simbox usage in other areas.
Classification of Muslim Woman Student Using Artificial neural network Ulil Albab; Imam Much Ibnu Subroto; Muhammad Haddin
Journal of Telematics and Informatics Vol 7, No 3: SEPTEMBER 2019
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jti.v7i3.

Abstract

Hijab is a female genital covering commonly used by adult women. The number of hijab wearing fashion modes is developing, this makes one of the factors lack of understanding about using the correct hijab. By utilizing image processing using classification techniques can be distinguished between veiled women and not veiled. Artificial Neural Network (ANN) is an artificial intelligence that presents like a human brain by means of learning. ANN can be embedded into a computer program for the calculation process. One of the uses of ANN is to process the image to be classified. Image processing stages are data acquisition, preprocessing, edge detection, training, testing and classification. Based on the tests that have been carried out as many as 20 experiments, the results of image classification using Artificial Neural Network algorithm and backpropagation learning methods show a good level of accuracy.
Fuzzy Logic Based Incubator Temp And Humid Level Controller Prototype Kuat Supriyadi
Journal of Telematics and Informatics Vol 7, No 3: SEPTEMBER 2019
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jti.v7i3.

Abstract

Younger babies born with low body weight are increasingly critical and at risk for these babies. To overcome this problem, we need a device of medical equipment that can replace uterine function, whose condition is like that of a baby still in the womb of his mother. Temperature, humidity, oxygen, sound and light levels for the development of the most suitable low birth weight babies. Not only the temperature, humidity and noise factors that must be considered, but also pay attention to other problems that can interfere with baby's health, among others; Factors such as skin that directly contact family members also contribute to disease in infants, because baby's skin is still very sensitive, and has the potential to become infected. Babies with very low birth weight have a very high risk, especially when they feel cold. When a baby experiences heat loss, creating a physiological response that exceeds that of a normal baby, physiological balance will be severely disrupted, this is because the baby needs to expend energy and metabolize oxygen to produce its own heat. The purpose of using an incubator is to create a very stable environment so that the birth of a baby with a low body weight can maintain a constant body temperature. In designing the incubator must pay attention to the condition of the humidity in the chamber, for the sensitivity of the chamber temperature is relatively easier but if the conditions of dry humidity will greatly affect the health of the baby. Ideal moisture loss will cause transepidermal water loss (TEWL) in premature infants. From the results of the Overall System Measurement and Research conducted in RSUP Dr. Sarjito on April 23, 2019. This location was chosen because the place has a temperature, humidity and noise level that is stable enough so that it is suitable for the location of the baby incubator.
The Layer 2 Network Security at SMK Negeri 1 Rantau Alai using DHCP Snooping Rahmat Novrianda D; Rasmila Rasmila
Journal of Telematics and Informatics Vol 7, No 3: SEPTEMBER 2019
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jti.v7i3.

Abstract

SMK Negeri 1 Rantau Alai is located at Ogan Ilir Regency, South Sumatera Province. In this Vocational High School (SMK), there are two majors namely Computer and Network Engineering (TKJ) and Software Engineering (RPL). SMK Negeri 1 Rantau Alai already has a computer network that used to communicate all users for file sharing called Local Area Network (LAN). It has been connected to the internet, but does not have a network security system so it`s very vulnerable to hacker intrusion who can do cyber crime. Therefore in this research, researcher built the network security on layer 2 Open System Interconnection (OSI) by utilizing DHCP Snooping technology to avoid cyber crime such as loss of important data from SMK Negeri 1 Rantau Alai database server. To implement DHCP Snooping, researcher need a routerboard Mikrotik device and also a switch that is one of hardware needed on the Data Link Layer. Besides that, Winbox and Putty software are also needed to help in the overall configuration of this research. The results obtained after DHCP snooping configuration done is the ability to recover IP addresse when converted to Fake IP will be able to return to its original IP address and limit the number of users who can access the internet at SMK 1 Rantau Alai Keywords: LAN, DHCP Snooping, Switch, Winbox, Putty
JSON Implementation with Zlib Compression for Database Efficiency in Handling Dynamic Upload Multiple Images Rianto Rianto; Alam Rahmatulloh; Iqbal Muhammad Fajar Nuralam
Journal of Telematics and Informatics Vol 7, No 3: SEPTEMBER 2019
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jti.v7i3.

Abstract

In this era, in an application it is often found that a dynamic input form is a form that can be filled in a lot of data, the application user is free to fill the data according to his wishes. To handle this dynamic input form, the developer usually adds a new table in a database specifically for storing dynamic data, it has the potential to waste tables and records in a database. Applying the JSON conversion technique is a solution to overcome this, dynamic data is stored in a special field so that the use of tables and records can be minimized, as well as to compress the JSON string length applied by the Zlib algorithm. In this study, dynamic data is a images file uploaded on an input form. The results of this study in the case of handling multiple dynamic form upload images shows that the JSON conversion technique is better than conventional techniques in terms of faster data storage speeds of 72.6%, in terms of simpler database structures, and in terms of 22.7% more data size small, so database management becomes more efficient.
The Decision Support System of the selection of tourist attractions of Bali Island is used Preference method of Organization For Enrichment Evaluation Eva Zuraidah
Journal of Telematics and Informatics Vol 7, No 3: SEPTEMBER 2019
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jti.v7i3.

Abstract

Tourism today is very potential to be developed as one source of local revenue by providing information both online and offline and online for the community so that increased regional revenue desired by the government. The number of tourist attractions in Bali to make many tourists from abroad and in the country feel confusion in determining the destination, the most beautiful and easy to reach the place. There are many criteria to be considered, then through this recommender system, tourists can find out what tours they will visit while in Bali. One of the problems of decision making with many criteria and attributes in choosing a tourist attraction is to provide detailed decisions that refer to the weight scale they have. The decision support system gives priority result of tourist attraction suitable for every tourist from abroad and in the country. This research is focused on applying multi-attribute decision making, for decision support system using the preferred method of organization for enrichment evaluation. This research uses the descriptive analytical method to present a summary of survey results made by spreading quizzers to domestic, foreign and foreign tourists, from tourists who want to choose the island of Bali tourism in accordance with cost, security, natural beauty, facilities and infrastructure and location the island of Bali

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