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All Journal MATICS : Jurnal Ilmu Komputer dan Teknologi Informasi (Journal of Computer Science and Information Technology) JSAI (Journal Scientific and Applied Informatics) Jurnal Instrumentasi dan Teknologi Informasi (JITI) HORIZON PUBLIC LEGAL STUDIES
Surya Wirawan
Program Studi Teknik Informatika Program Teknologi Informasi dan Ilmu Komputer Universitas Brawijaya Malang suryawirawan_21@yahoo.co.id,
Computer Science & IT Electrical & Electronics Engineering Energy Engineering

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SISTEM RESERVASI TIKET BUS DI TERMINAL ARJOSARI MALANG Wirawan, Surya; Soebroto, Arief Andy; Aknuranda, Ismiarta
MATICS MATICS (Vol 5, No 3
Publisher : Department of Informatics Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.552 KB) | DOI: 10.18860/mat.v0i0.2429

Abstract

Bus Ticket Reservation System is an application that can be used to help booking bus tickets and the buyer will get a report via SMS Gateway. The reservation system is made by conducting field studies in Arjosari Bus Station Malang. This system uses SMS Gateway to send the report to the buyer after booking bus tickets online. SMS Gateway on this application serves as a liaison which delays sms between External Short Message entitiy (ESME) and Short Message Service Center (SMSC) and so does in reserve.The reservation system made is developed with the PHP programming language and has a prototype system pattern. System functions were tested using the validation testing, performance testing, and usability testing. The results percentage of responses usability testing is 67.7%. This shows that Ticket Reservation System at Arjosari Bus Station can be used well enough.  
Desain Sistem Informasi Cerdas pada Smart Grid Berbasis Internet of Things dan Artificial Neural Network Cahyono, Muhammad Ridwan Arif; Wirawan, Surya
JSAI (Journal Scientific and Applied Informatics) Vol 4, No 1 (2021): Januari
Publisher : Fakultas Teknik Universitas Muhammadiyah Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36085/jsai.v4i1.1219

Abstract

Smart grid merupakan sistem kelistrikan yang memungkinkan pengguna untuk melakukan proses menjual dan membeli daya listrik. Pada penelitian ini dirancang model smart grid dengan sumber daya dari listrik PLN dan panel surya yang terhubung dengan beban. Beban yang digunakan memiliki daya maksimal 40 W dan panel surya yang digunakan memiliki kapasitas 100 Wp. ESP32 digunakan sebagai perangkat Internet of Things, yang digunakan sebagai pengukur dan pengontrol daya listrik yang akan dijual atau dibeli. Raspberry Pi digunakan sebagai web server pengolah data dari smart grid. Aplikasi “Smart Grid Dikti” merupakan aplikasi berbasis android yang dapat digunakan untuk melakukan pemantauan serta pengaturan dalam sistem smart grid tersebut. Aplikasi android tersebut telah diuji coba dengan metode Black Box, dengan hasil pengujian 100% berhasil. Kecerdasan buatan berbasis Artificial Neural Network (ANN) dengan metode backpropagation diimplementasikan dalam sistem smart grid yang berfungsi sebagai pengaturan otomatis dalam proses jual dan beli daya listrik. ANN yang digunakan memiliki 3 input, 2 layer neuron, 3 output, dan masing-masing layer memiliki 4 neuron yang diimplementasikan ke dalam bahasa Python. Setelah pelatihan sebanyak 11.000 kali, didapatkan Root Mean Square  Error (RMSE) sebesar 0,12151 dan pada saat uji coba didapatkan RMSE sebesar 0,10500 dengan akurasi rata-rata sebesar 89,50%.
Perancangan Sistem Kontrol Motor 3 Fasa Pada Rancang Bangun Alat Aplikator Bitumen di PT ANR Ramadhan, Agil Candra; Wirawan, Surya
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 5 No. 1 (2023): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

ANR merupakan salah satu perusahaan manufaktur yang memproduksi kabel di Indonesia. Perusahaan ini telah berdiri sejak tahun 1972 dan memiliki visi untuk menjadi produsen kabel yang maju, solid, dan terpercaya. Untuk mencapai visi tersebut, PT. ANR menetapkan beberapa misi yang menjadi dasar berdirinya perusahaan ini. Produk kabel yang diproduksi oleh PT. ANR terbagi menjadi tiga jenis, yaitu Kabel Tegangan Tinggi, Kabel Tegangan Menengah, dan Kabel Tegangan Rendah. Untuk beberapa jenis High Voltage Cable, setelah proses armoring, dilakukan proses pelapisan aspal yang dilakukan pada mesin IS-23. Tujuan dari proses ini adalah untuk mencegah terjadinya korosi pada kabel tegangan tinggi. Saat ini peralatan pelapisan aspal terdiri dari box untuk menampung aspal cair dan peralatan pelapisan. Berdasarkan analisis yang dilakukan, dapat disimpulkan bahwa ada tiga faktor yang menyebabkan proses pelapisan aspal kurang efisien. Salah satu faktor utamanya adalah belum adanya alat yang dapat mengaplikasikan cairan aspal secara otomatis pada mesin IS-23. Penelitian ini bertujuan untuk mendukung sistem kerja produksi pelapisan aspal cair dengan merancang dan membangun alat bantu yang dilengkapi dengan motor 3 fasa sebagai fasilitas kerja, sehingga proses produksi dapat lebih mudah dan produktivitas dapat meningkat. Dalam perancangan alat yang digunakan untuk meratakan cairan aspal pada proses pelapisan menggunakan kuas bekerja sesuai dengan rancangan yang telah dibuat, motor AC 3 fasa dengan sistem kontrol inverter yang menggunakan potensiometer.
Rancang Bangun Sistem Kontrol Elektro Pneumatik Pada Alat Penumbuk Hitanol Ardiansyah, Ahmad Yusuf; Wirawan, Surya
Jurnal Instrumentasi dan Teknologi Informasi (JITI) Vol. 5 No. 2 (2024): Mei
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

Hitanol is a granular chemical that is used as a raw material to make compound bladders. The manufacturing process of compound bladder starts by weighing the chemicals. Before the weighing process, hitanol undergoes an agglomeration or accumulation of particles that causes hitanol to agglomerate and makes it difficult for the operator to weigh. As a result, operator has to do the crushing process so that the hitanol returns to granular form. The crushing process is currently being done manually by hitting the hitanol using iron stick. These problems were a driving force in the design of the hitanol crusher with an electro pneumatic system. The results of the design of the hitanol crusher using a double acting cylinder with a stroke length of 250 mm controlled by electric signal. The air flow in the pneumatik cylinder is controlled by a 5/2 single coil solenoid valve that triggered by timer and relay.
COLD-BLOODED CYBER EXTORTION TRAP: The Method of Distributing Immoral Content as a Criminal Weapon of Threats on Social Media Wirawan, Surya; Mappaselleng, Nur Fadhilah; Handayani, Dwi
HORIZON PUBLIC LEGAL STUDIES Vol. 2 No. 1 (2025): Vol 2 No 1 (2025): Horizon Public Legal Studies
Publisher : Faculty of Law, Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56087/hegels.v2i1.1324

Abstract

This study aims to determine and analyze the investigation process for criminal acts of threats and extortion via social media and to identify the inhibiting factors in the investigation of criminal acts of threats and extortion via social media, particularly involving the distribution of immoral content. This study employed empirical research methods. Data collection techniques included interviews and documentation. The study was conducted in Makassar, specifically at the South Sulawesi Regional Police Headquarters. The results of the author's research are that the process of investigating criminal acts of threats with extortion is the same as handling other general crimes if the report is received then an investigation warrant and SP2HPA1 (Notification of the progress of the report research results) are issued. The results of the investigation find at least 2 initial pieces of evidence that are sufficient in accordance with the provisions of Article 184 of the Criminal Procedure Code then the status will be raised from the preliminary stage to the preliminary stage and the issuance of SP2HP A3 (Notification of Investigation Results) is issued. However, if the results of the investigation of the reported case are not a criminal case or do not meet the provisions of Article 184 of the Criminal Procedure Code then the investigation must be stopped and the issuance of SP2HP A2 (Notification of the Progress of Investigation Results) or usually the investigation is stopped. The inhibiting factors in the investigation process against suspects who commit criminal acts of threats and extortion through social media include sometimes the reported party is not cooperative, evidence has been deleted which results in the digital tracking process becoming more complicated and long, and the perpetrator is usually outside the jurisdiction of the South Sulawesi Regional Police and there is often a lack of witnesses and evidence. The author's recommendation is that the police should increase cooperation in resolving criminal cases, both with related agencies and with the public. There is also the need for comprehensive public education regarding the importance of a cooperative attitude when dealing with the law to facilitate investigations and handling of a case. The public also needs to increase awareness of electronic media security and participate in reporting cybercrime to the police. Law enforcement officers also need to be equipped with adequate tools and strengthen coordination and cooperation between the government, law enforcement officers, and the public. Thus, these steps are expected to increase the effectiveness of law enforcement and reduce obstacles in overcoming the spread of immoral content through electronic media.
Co-Authors Ardiansyah, Ahmad Yusuf Arief Andy Soebroto Dwi Handayani Ismiarta Aknuranda Mappaselleng, Nur Fadhilah Muhammad Ridwan Arif Cahyono Ramadhan, Agil Candra