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SISTEM PENDUKUNG KEPUTUSAN UNTUK MEMPREDIKSI JUMLAH PAKAIAN DENGAN MENGGUNAKAN METODE WEIGHT MOVING AVERAGE DAN EXPONENTIAL SMOOTHING (Studi Kasus di Toko Rookieinside Yogyakarta) Prasetio, Eko; Irawaty, Mardiana
Compiler Vol 3, No 2 (2014): November
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (163.213 KB)

Rookieinside is a store that moves in the field convection. Rookieinside had a bad in the determination of goods production which must be manufactured for sale and sometimes experience of excess supply in stock goods in the warehouse. Rookieinside requires a tool aids that can help and to maximize their performance in forecasts of work that must be manufactured so that work was not pile up in the warehouse. This application is made by using this method Weight Moving Average and Smoothing Exponential. Result of this application information about the number of record amounts that might have happened in the same will come. This application is useful to take a decision in determines the amount of work that will be produced in next period.

PENERAPAN SENSOR ACCELEROMETER UNTUK MEMBANDINGKAN GEMPA DATA BMKG DAN GOOGLE EARTHQUAKE PADA PERANGKAT SMARTPHONE ANDROID Putra, Anna Arthdi; Irawaty, Mardiana
Compiler Vol 3, No 2 (2014): November
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (155.155 KB)

The earthquake that occurred around the world, generally always cause building damage and casualties. The number of fatalities occurred due to the lack of early notification and earthquakes happen very quickly. The software developed in this study can detect the strength of the earthquake. Magnitude detection software is designed to be equipped smartphone device accelerometer sensors and GPS. Smartphone users who apply this device will allow earthquake information (magnitude) faster than BMKG. The experimental results with comparison earthquakes that have occurred naturally suggest the software can be applied to well. Users of smartphones equipped with an accelerometer and GPS that applying this software can improve alertness when it will take place.

ANALISIS KEBUTUHAN BANDWIDTH DENGAN MODEL SHARING SYSTEM PADA MIKROTIK ROUTERBOARD 450G DI JARINGAN OFFICE STTA Irawaty, Mardiana; Mulyawan, Ferry; Astuti, Yenni
Compiler Vol 6, No 1 (2017): Mei
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (845.235 KB)

The limitations between the amount of bandwidth and users can make the internet slow. Observing the flow of data on the internet network is one way to identify the bandwidth requirements which used on the STTA office network. This thesis analyzes the data traffic with sharing system model. The observed data is in the category of elastic flow rate, i.e: TCP (Transmission Control Protocol). The traffic data is converted to a measured data graph and then analyzed by traffic load, throughput, and flow of loss parameters. The highest observation value of traffic load is 0.37, Throughput of 9.3 Mbps (93%), and the flow of loss of 23%. From the results of the research, it can be concluded that in general internet network at STTA office is in good category.

SISTEM PAKAR PADA PERMAINAN UNTUK MENGUKUR TINGKAT INTELLIGENCE QUOTIENT (IQ) MENGGUNAKAN METODE BINET-SIMON BERBASIS ANDROID Tamatjita, E.N.; Irawaty, Mardiana; Ramdhani, Rio
Compiler Vol 5, No 1 (2016): Mei
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.332 KB)

The development of mobile technologies very rapidly at this time, can be seen in all areas of human life. It triggers the level of usage of mobile equipment itself, this time in the form of a smartphone gadgets familiar to the adults and children. IQ tests that exist today are still many that are manual and less desirable, especially for the children. With combined by mobile technology and packed into a game, is expected to add to the child's interest and can be used as a means of learning. The test results of 30 respondents, the level of user satisfaction based GUI Display, User Friendly and Final Game IQ Method Using Binet-Simon-Based Mobile, obtained a percentage of 71.31% keselurahan assessment. Thus Game IQ can be said Good

Analysis of the Effect of Linear and Non Linear Loads on the Effectiveness of Single Phase Transformers Sudibya, Bambang; Irawaty, Mardiana
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Lately, PLN as the state electricity company that supplmost of the electricity needs in Indonesia is being hit by a "trial" which is in a row with the burning of several Interbus Transformers (IBT) in several regions. This can be caused by the rupture of the bushing so that it triggers a short circuit and results in the burning of the transformer. However, so far the investigation of other causes has been minimal as well as the effect of the load which is primarily a nonlinear load. Electricity is a device / device that can function if it is electrified. The device / tool is used to convert electrical energy into other energy such as motion, heat, light and so on. Electricity load consists of linear load and non linear load. changes in the use of linear loads to non-linear loads, among others, from incandescent lamps to TL lamps, and many non-linear loads that are widely used such as the use of induction motors (motors used in water pumps, refrigerators, air conditioners, etc.), rectifiers, static power converter (rectifiers and or inverters), electronic ballasts cause harmonics. Harmonics are sinusoidal waves with frequencies which are round multiples of the fundamental frequency. Harmonics can affect the work function of the transformer, which causes more heating to the iron core, which causes an increase in loss. In this study, the losses will be tested if the load is linear and also if it is loaded with non-linear loads. The results showed that for small loads, the response of the two loads showed almost the same current. While for moderate loads there is a difference that has not been so large, and for large loads large currents indicated there are large differences. So that the copper losses and iron losses are greater when the load is large. Given copper losses there is a current flowing in the transformer winding and the presence of resistance in the winding (I2R1 + I2R2). so that the increase in load current will increase copper losses. So thereby increasing copper losses causes a decrease in transformer efficiency.

Monitoring Departure to Schools in Basic School Students Using Arduino Based on Android Saputro, Eko; Kusumaningrum, Anggraini; Irawaty, Mardiana
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Student departure monitoring is an Android-based app used to monitor student departure to school. This system runs on parent smartphones so parents can see the existence of students and the app will give a message if the student out of the route path that has been set. Arduino used is arduino uno nano type. Arduino programmed using C language, to monitor the existence of students also required some components such as GSM Module and GPS Module. In testing the user application can monitor the existence of the students through the mobile phone that has been installed the application, before monitoring the departure of parents students are required to enter data coordinates home, coordinate data route and data coordinates of schools entered manually. To get the coordinate data the parent can take it through google Maps. To avoid failure in the use of remote control applications should use Android smartphone version 4.1 Jelly bean to version 6.0 Marshmallow. In the experiments this application can run smoothly with the Android version 4.1 to Android version 6.0 and the results of the questionnaire given to the 30 respondents with 9 questions 75.77% results obtained using Likert-scale calculations, which results obtained a good assessment interval.

Radio Transmission Detection Using Doppler in UHF Frequency Band Bambang Sudibya; Denny Dermawan; Muhammad Jalu Purnomo; Mardiana Irawaty
Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vol 4, No 1 (2022): February
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v4i1.1185

The direction finder of a radio transmitter is a device that functions to find and determine the direction of a radio transmitter that works in the Ultra High Frequency (UHF) band. UHF frequency used is in the range of 420 - 440 MHz. The concept of Doppler radio is used as a method to determine the direction a radio transmitter is located. Radio Doppler use four receiving antennas which are installed at a certain distance so that it can produce a difference in frequency (Doppler) on each radio antenna because of the difference in the angle of the detected signal. The direction of the incoming signal will be displayed on a set of 16 LEDs and each LED will represent the direction of the incoming angle of 22.5 degrees. The detected frequencies are 422,580 MHz and 429,980 MHz originating from the UHF transmitter with 100mW of power and amplified with a radio frequency amplifier of 3 Watts power. The results show that the frequency of 429,980 MHz was detected with a maximum detectable distance of 1500 meters. The frequency of 422,580 can be detected with a maximum distance of 800 meters. This radio direction finder is can be used to find radio signal in UHF band frequency 420-440 MHz. The direction of the radio transmitter location is simply show in group of led’s as a direction detector.

SISTEM PENDUKUNG KEPUTUSAN UNTUK MEMPREDIKSI JUMLAH PAKAIAN DENGAN MENGGUNAKAN METODE WEIGHT MOVING AVERAGE DAN EXPONENTIAL SMOOTHING (Studi Kasus di Toko Rookieinside Yogyakarta) Eko Prasetio; Mardiana Irawaty
Compiler Vol 3, No 2 (2014): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Rookieinside is a store that moves in the field convection. Rookieinside had a bad in the determination of goods production which must be manufactured for sale and sometimes experience of excess supply in stock goods in the warehouse. Rookieinside requires a tool aids that can help and to maximize their performance in forecasts of work that must be manufactured so that work was not pile up in the warehouse. This application is made by using this method Weight Moving Average and Smoothing Exponential. Result of this application information about the number of record amounts that might have happened in the same will come. This application is useful to take a decision in determines the amount of work that will be produced in next period.

PENERAPAN SENSOR ACCELEROMETER UNTUK MEMBANDINGKAN GEMPA DATA BMKG DAN GOOGLE EARTHQUAKE PADA PERANGKAT SMARTPHONE ANDROID Anna Arthdi Putra; Mardiana Irawaty
Compiler Vol 3, No 2 (2014): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

The earthquake that occurred around the world, generally always cause building damage and casualties. The number of fatalities occurred due to the lack of early notification and earthquakes happen very quickly. The software developed in this study can detect the strength of the earthquake. Magnitude detection software is designed to be equipped smartphone device accelerometer sensors and GPS. Smartphone users who apply this device will allow earthquake information (magnitude) faster than BMKG. The experimental results with comparison earthquakes that have occurred naturally suggest the software can be applied to well. Users of smartphones equipped with an accelerometer and GPS that applying this software can improve alertness when it will take place.

ANALISIS KEBUTUHAN BANDWIDTH DENGAN MODEL SHARING SYSTEM PADA MIKROTIK ROUTERBOARD 450G DI JARINGAN OFFICE STTA Mardiana Irawaty; Ferry Mulyawan; Yenni Astuti
Compiler Vol 6, No 1 (2017): Mei
Publisher : Institut Teknologi Dirgantara Adisutjipto

The limitations between the amount of bandwidth and users can make the internet slow. Observing the flow of data on the internet network is one way to identify the bandwidth requirements which used on the STTA office network. This thesis analyzes the data traffic with sharing system model. The observed data is in the category of elastic flow rate, i.e: TCP (Transmission Control Protocol). The traffic data is converted to a measured data graph and then analyzed by traffic load, throughput, and flow of loss parameters. The highest observation value of traffic load is 0.37, Throughput of 9.3 Mbps (93%), and the flow of loss of 23%. From the results of the research, it can be concluded that in general internet network at STTA office is in good category.

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