Articles
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Use of Lipat Algorithm on Android to Secure Data Communication in Social Media

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

Cryptography is one of science that learn about securing a message. Message security is done by randomizing the message (encryption) and returned to it’s original form (description). In this study, the designer of the system first and build an application to secure the message by using the Lipat Algorithm method that aims to secure messages consisting of letters, numbers, or symbols. Applications are designed and built running on Mobile Android. The Lipat Algorithm Method applies a fourfold system in the encryption process and the description of the message to be encrypted and in the description will advance 4 (four) characters forward or backward. Based on testing done the application managed to perform the encryption process and description correctly, ranging from short messages to messages as much as 2305 characters.

PEMANFAATAN INTERNET OF THINGS PADA KENDALI LAMPU

Compiler Vol 6, No 1 (2017): Mei [Accredited as S5 with number 21 /E /KPT /2018]
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

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Abstract

Lamp is a kind of electronic that created light. Light is obtained through the flow of electricity as a current to add a voltage. the die and the life of light are controled  by humans using switch. Applying the  Internet of Things, as known as IoT determined the life and the die of a lamp by determined by the active light censor. The die and the life of the lamp automatically depends on the light sensor by capturing the intensity of the light produced. The result of the function test found that the data in the form of lux value generated by the light sensor, the value is exposed on a website with the display of graphics and websites serve as a web service provides control values to determine the response lamp, if the value of lux above 30 percent then the lights off And vice versa if under 30 percent of the lamps are on, so that a small value will be sent to the lamp and the lamp will respond that the lights are off or on. So that humans only act as a watchdog and control of the value generated by the light sensor.

APLIKASI SKETSA GAMBAR DAN TULISAN PADA VIDEO CALL BERBASIS ANDROID

Compiler Vol 6, No 1 (2017): Mei [Accredited as S5 with number 21 /E /KPT /2018]
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

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Abstract

Video Call is a set of interactive telecommunication technologies which allow two parties of people in different locations can interact via two-way delivery of audio and video in real time. Tools to sketch pictures and writings on the application ViCall aims to facilitate educators do the learning process using media with video call implementation sketch pictures and writings as explanatory. Educators start doing sketches image and writings and then saved. After that upload sketches image and writings made by educators can then be shown to the students. The results of the testing of the application can be run on at least speksifikasi android kitkat v4.4.4. On testing provider obtained the average connection time 8.33 seconds. Based on a questionnaire, test this application generates 84.4% by criteria of "very good".

SISTEM PAKAR UNTUK MENDIAGNOSA PENYAKIT DAN HAMA PADA TANAMAN SALAK DI TURI SLEMAN

Compiler Vol 6, No 1 (2017): Mei [Accredited as S5 with number 21 /E /KPT /2018]
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

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Abstract

Expert systems are systems that adopt human knowledge into computers designed to solve problems like an expert. Salak plants, especially in TuriSleman Yogyakarta area has several obstacles such as diseases and pests in salak plants which is a problem for salak farmers. Expert research Expert system to diagnose diseases and pests in this salak crop helps salak farmers overcome the problems of disease and pests. Salak farmers only need to enter the symptoms experienced in the barking plants later data will be processed symptoms entered by the system. This application performs checks with the system as consulted with a salak plant experts to find out the diseases and pests that attack on the barking plants and find solutions. Implementation in this application using TOPSIS method, TOPSIS method yields the highest rank value for the final result value. This application takes data and performs testing in UPT BP4 Region V Sleman with Turi OPT (Plant-disturbing organisms) officer.

Pendampingan Pembuatan Bahan Ajar Bagi Guru Sekolah Dasar Islam Terpadu (SDIT) Salsabila Al Muthi'in Berbasis Multimedia dengan Menggunakan Microsoft Power Point

KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 1, No 1 (2018): Juli
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

Teachers are a very noble profession, because one of the teachers' tasks is to help the intellectual life of the nation. As teachers in their daily lives to educate the nation, requires the support of equipment that can be used in the teaching and learning process in the field that it has. The necessary support material may be hardware and software that can be used to compile teaching materials of interest to learners. Therefore, teachers should have the skills as educators to leverage the kmputer hardware and software correctly to create interactive educational materials in the digital age, one of the multimedia-based teaching materials using Microsoft software Power point. The purpose of teaching didactic materials for teachers is to provide teachers with skills to use the use of Microsoft Power Point to produce interactive documents that may be more interesting for student learning. Thus, the implementation of community service activities with the title "support for the development of educational materials for primary school Teachers ISAM (SDIT) Salsabila Al Muthi'in multimedia through the use of Microsoft Power Point" offers advantages important for improving teachers' skills in the use of information and computer technologies.

SISTEM PERHITUNGAN LAMA PENYINARAN MATAHARI DENGAN METODE OTSU THRESHOLD (STUDI KASUS: ST. KLIMATOLOGI BARONGAN)

Compiler Vol 5, No 2 (2016): November [Accredited as S5 with number 21 / E / KPT / 2018]
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

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Abstract

Solar radiation measurements in climatology station barongan done by using campbell stokes and record card. Solar radiation is the accumulation of the whole length of the object radiation recorded on the record card. Solar radiation data reading performed by observers by estimating the long of object irradiation compared with the scale of hours listed on the record card. The difficulties encountered by observers in conducting solar radiation data readout is the shape of the object radiation recorded on the record card are not always in the form of elongated areas, some areas disjointed, even can only form small holes along the track on the card record. The purpose of this study was to design and build a system that can be used to calculate solar radiation recorded on the card record, thus increasing the accuracy of measurement data readout. Cropping process is carried out in order to obtain the right area for analysis. The approach method in object segmentation is done by implementing a solar radiation threshold otsu method. The test results showed that the determination o f the radius o f the opening and removing noise value appropriately irradiation can obtain the number o f objects on test images with RMSEof1.4429 compared with the amount o f exposure o f the image o f the original object. Results o f calculation solar radiation by the system showed system RMSE o f 0,51 to observer calculation.

Pelatihan Mendesain Artikel Artistik Menggunakan Microsoft Word Bagi Kelas 5 SD di SDIT Salsabila Al Muthi’in Yogyakarta

KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 2, No 1 (2019): Januari
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

Teknologi Informasi dan Komunikasi (TIK) pada jaman sekarang sangat dibutuhkan oleh setiap masyarakat baik itu orang dewasa maupun anak-anak. Khususnya pada anak-anak, sangat dibutuhkan pelatihan penggunaan perangkat teknologi informasi dan komunikasi agar nantinya anak-anak dapat memanfaatkannya dengan baik. Salah satunya adalah dengan melatih kemampuan mendesain artikel artistik dengan memanfaatkan aplikasi pengolah kata yaitu Microsoft Word. Microsoft Word adalah aplikasi pengolah kata yang sangat populer pada saat ini,dengan aplikasi tersebut dapat memudahkan kerja manusia, salah satunya dalam membuat artikel. Kegiatan pengabdian pada masyarakat dititik beratkan dalam bentuk pelatihan tentang cara mendesain artikel artistik menggunakan software Ms.Word bagi siswa-siswi kelas 5 di SDIT Salsabila Al Muthi’in Yogyakarta. Diharapkan dengan adanya pelatihan tersebut, siswa-siswi dapat lebih mengetahui tentang teknik mendesain yang artistik dengan memanfaatkan Microsoft Word dan penggunaannya sehingga dapat membantu saat pengerjaan tugas sekolah maupun meningkatkan kreativitas. Hasil dari kegiatan pengabdian yang dilaksanakan memberikan pengalaman dan ketrampilan pada para siswa di SDIT Salsabilla Al-Muthi’in dalam mendesain artikel yang artistik dengan memanfaatkan Microsoft Word. Dengan demikian, pelaksanaan kegiatan pengabdian kepada masyarakat dengan judul “Pelatihan Mendesain Artikel Artistik Menggunakan Microsoft Word Bagi Kelas 5 SD di SDIT Salsabila Al Muthi’in Yogyakarta” memberikan manfaat yang signifikan bagi peningkatan keterampilan siswa siswi dalam memanfaatkan teknologi informasi dan komputer, khususnya untuk membuat artikel artistik.

APLIKASI KONVERTER KALIMAT AKTIF-PASIF BERBASIS ANDROID

Compiler Vol 6, No 2 (2017): November [Accredited as S5 with number 21 /E /KPT /2018]
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

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Abstract

Active-Passive Sentences Converter is an android-based application that aims to transform active sentences into passive voice, it’s expected to facitate help elementary school children especially in particular to transform the active-passive sentences. The system on the application does not work if the entered sentences does not meet the S-P-O element, and for the predicate is not the same  as the active verb. If the user has entered the sentence in accordance with the standard active sentence then system will move the object on the active sentence into the subject on the passive sentence as well as the subject becomes the object, and replace the active verb into a passive verb with the particle di- on the predicate. This application can only be operated at least on 4.4 Kitkat android version. The result of the application tested was awesome with the 92% of correct percentage, after applied at three elementary schools are SD Jomblangan, SDN Adisucipto, SDIT Salsabila Al Muthi’in, SDN Berbah 1 and SD Muhammadiyah Noyokerten.

Decision Support System for The Weaning of Rex Rabbit Using Simple Additive Weighting ( SAW ) Method

Compiler Vol 8, No 1 (2019): Mei [Accredited as S5 with number 21 /E /KPT /2018]
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

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Abstract

Weaning REX rabbits child is one of the keys to success in raising or cultivating rabbits. Unsuitable weaning can result in very high mortality or mortality risks, while weaning for too long results in decreased productivity and the possible marriage of children with rabbit parent. The research done is to design and build the application of decision support system (DSS) with Simple Additive Weighting method (SAW) with 5 criteria as supporting of DSS calculation that are body weight (gram), body length (cm), still breastfeeding or not, already independent for food or not and Gender. The webased DSS application created is tested  by using the calculation system compared with research data. Based on the test of 36 rabbit children which is derived from previous research results obtained showed that the application of the DSS are built 100% the same result.

THE AUDIO VIDEO OF WEB-BASED COMPRESSION WITH FFMPEG

Compiler Vol 7, No 2 (2018): November [Accredited as S5 with number 21 /E /KPT /2018]
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

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Abstract

In general, video compression only compresses video files without compressing the audio files in them. This results in the compression process not being maximized.This study discusses the process of compressing video and audio files to get maximum compression. The application built is a web-based video compression software utilizing FFmpeg to do the compression process by breaking down the original video which has a resolution of 720 to 4 files, namely 720, 480, 360, and 240 resolutions. The test is done by comparing the compression results only to video files and compressing to video and audio and there is a 1-2 MB file size difference, whereas when compared to the original file, there is a 5-20 MB size difference. In addition to conducting this test also performed compression testing on different devices and obtained relatively similar results on all devices. Test the image quality on the compressed file obtained the image quality results in the standard video compression below 30dB results.