Saiful Manan
PSD III Teknik Elektro

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Implematasi Aeschipper Class Untuk Enkripsi URL di Sistem Informasi Akademik Fakultas Teknik Universitas Diponegoro Subari, Arkhan; Manan, Saiful
Jurnal Sistem Komputer Vol 4, No 2 (2014)
Publisher : Jurnal Sistem Komputer

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Abstract

In web programming GET method can use to send data from client to server. Weaknees of the GET method is the appearance of transmitted data or variables in the URL. Users can easily change variables used and when it is executed, variable data will also be executed. It is very vulnerable to attack by malicious users with some techniques such as XSS or SQL injection. These weaknesses can be resolved with use encryption techniques to URLs that use the GET method, such as AES encryption. The process is encrypt variables on client side and decrypt on server side to retrieve actual data. Thus variable is not shown in the URL, so if there will be an attack attempt difficult. Academic Information System (AIS) of Engineering Faculty, as a web-based application also uses several modules that use the GET method for sending data. Thus addition of the security level using the URL encryption is needed to improve security of system and data on the AIS. The result is a variable that is sent with GET method is not display on URL on three modules, namely the main menu page, change the password and a link out of the syste . The encryption process adds time access to system by an average of 0:05 s, so that the outline does not affect system performance . Keywords: web applications, POST and GET, URL, encryption, AES, academic information system.
POWER SUPPLY INVERTER DC-DC SEBAGAI SUPPLY AUDIO AMPLIFIER Wardani, Ilham Setiya; Manan, Saiful
Gema Teknologi Vol 18, No 4 (2016): October 2015 - April 2016
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v18i4.21909

Abstract

Ilham Setiya Wardani, Saiful Manan in this paper explain that Utilization of power electronics components in the process of conversion of electrical energy has been growing from year to year. for controlling power from one form to another is very important and the characteristics of the equipment of power electronics has allowed it. DC-DC converters can also be called a wave DC inverter capable of producing symmetrical widely used and applied in industry and everyday life.In the inverter power supply are made using half-bridge converter topology. Half-bridge converter topology has several advantages that are easy to create and output a lot easier in the controlling. The process of switching at the half bridge converter using mosfet IRFZ44N and executed using ICTL494.In the design of the tool, using the supply is 12 Volt DC that directly goes to IC TL494 and frequency output that is generated directly toward the driver mosfet with the type BC327 used to mesaklarkan mosfet by means of on / off alternately to supply the power transformer intiferit to raise the voltage to 26 volt AC that will be rectified by using fast diode recofery MUR1560 to rectify the AC into DC voltage with the output voltage of +/- 26 volts DC. Keywords: power supply, inverter, TL494ReferencesBarkhordarian, V. Power MOSFET Basics. International Rectifier: California. E-book :www.aosmd.com. Didownload pada april 2016. Pukul 21.15 WIB.Hermawan, H. Rancang Bangun Sistem Kendali High Frequency Induction Heating. Skripsi S1 Teknik Elektro. Jakarta: Universitas Indonesia.Malvino . 1995. Prinsip-prinsip Elektronika. Jakarta : Erlangga.Maruitula, Edison. 2011. Rancang Bangun Flyaback Regulator Untuk Mencatu Sistem Pensaklaran IGBT pada Invereter. Skripsi S1 Teknik Elektro .Depok : Unversitas Indonesia.Muis, Saludin. 2013. Perancangan Teori Dan Praktis Power Supply Jenis Switch Mode. Yogyakarta : Graha Ilmu.Rasyid, Muhammad H. 1999. Elektronika Daya. Jakarta : PT Prenhallindo.
PEMANFAATAN MOTOR SERVO SEBAGAI PENGGERAK CCTV UNTUK MELIHAT ALAT-ALAT MONITOR DAN KONDISI PASIEN DI RUANG ICU Hilal, Ahmad; Manan, Saiful
Gema Teknologi Vol 17, No 2 (2013): October 2012 - April 2013
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v17i2.8924

Abstract

Ahmad Hilal, Saiful Manan, in paper use servo motor as a CCTV driver to see monitoring equipment and conditions of patients in the icu room explain thatservo motor is a motor with a closed feedback system in which the position of the motor will be communicated back to the control circuit in the servo motor, servo motor is able to work both directions (clockwise and belawanan clockwise) in which the direction and angle of the rotor movement can controlled only by providing PWM signal duty cycle settings on the control pin. In the servo motor function of this type is only capable of moving in either direction (CW and CCW) with respective deflection angle reaches 90 ° so that the total deflection angle of the center - right -kiri adalah180 °. Part of the servo motors consist of a potentiometer which functions as a regulator of the servo movement of a large pulse is given, the internal gear serves as a torque amplifier dc servo motors, dc motors as the driving part that converts electrical energy into motion, as well as a control circuit servo motor driver function to process the data input pulses into motion. Servo motors used to drive the CCTV, in order to see the health of the patient monitoring devices as instructed. The servo motor voltage of 5 volts dc power supply from PC. Servo motor movements influenced the input pulse, to round to the right then it takes the pulse of more than 1,5ms, for the leftist movement takes the pulse of less than 1,5ms and at the center position or silence takes input pulse of 1.5 ms with a delay of 20 ms. Servo motors work processes in order to move that the serial data input from the PC, the serial data into the ATMEGA 8 for processing, so that the serial data is converted into binary data through IC74595 as servo motor driver, to output one of IC74595, the servo motor can move, because inflows along with pulses to the servo motor control circuit. Keywords: DC servo motors, Power Supply, IC74595, ATMEGA 8
RANCANG BANGUN EXTERNAL ELECTROMAGNETIC RETARDERS SYSTEM PADA MOTOR 1 PHASA Dewantara, Bima Dicky Anugrah; Manan, Saiful
Gema Teknologi Vol 18, No 4 (2016): October 2015 - April 2016
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v18i4.21908

Abstract

Bima Dicky Anugrah Dewantara, Saiful Manan, in this paper explain that Electromagnetic retarders are generally known as electromagnetic inhibitors or brakes, the braking system eliminates most braking mechanics, thereby reducing conventional braking systems. Safety requirements and safety systems are developed and become a focal point of an equipment. Electromagnetic brakes are a safety component with a control system that is easy to control. With this electromagnetic brake, it will reduce maintenance costs, because it only requires a factor of electricity to be able to move it. The braking system uses electromagnetic forces to slow down a movement, which is generally a shaft motion. A dish with non-ferromagnetic metal material is attached to a rotating shaft. The disk is flanked by the side of the stator in the form of an electromagnetic coil system that can generate a magnetic field from electricity. Electric current generates a magnetic field in the coil. And the metal plate that cuts the magnetic field will cause eddy currents on the disk itself. This eddy current will generate a magnetic field whose direction is opposite to the previous magnetic field, thus inhibiting the rotary motion of the shaft. In designing, experimenting and making an External Electromagnetic Retarders System Design on 1 Phase Motor, use the NE 555 IC as the control duty cycle. So that the relationship between braking current and braking time is inversely proportional if the higher the current, the shorter the time it takes for the rotor to stop. And the relationship between braking current and motor current is directly proportional, by increasing the braking current will increase the load on the motor causing the motor current to increase. Keywords: Electromagnetic Retarders, Electromagnetic Brakes, Eddy Flow EffectReferencesTipler, P. 2008. Physics for Scientist volume 2. New York : WH Freeman and Company..Ishaq, M. 2007. Fisika Dasar Elektisitas dan Magnetisme. Yogyakarta: Graha Ilmu.Millman, Halkias, M.Barmawi, dan M.O.Tjia. 1971. Integrated Electronics:Analog and Digital Circuits and Systems. Jakarta : Erlangga.Ramdhani, Mohamad. 2008. Rangkaian Listrik. Jakarta : Erlangga.Bishop, Owen. 2004. Dasar-Dasar Elektronika. Jakarta : Erlangga.Halliday, David. Robert Resnick. 1978. Fisika Jilid II Edisi Ketiga. Jakarta : Erlangga
ALAT PENGGERUS OBAT OTOMATIS BERBASIS MIKROKONTROLER AVR ATMEGA 16 DISERTAI TAMPILAN LCD Noviana, Eva; Manan, Saiful
Gema Teknologi Vol 17, No 1 (2012): April 2012 - October 2012
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v17i1.8914

Abstract

Eva Noviana, Saiful Manan, in paper otomatic drug muller based on ATMEGA16 mikrokontroler with LCD monitor explain that in a pharmacy a pharmacist made ??in accordance with the prescription drugs that have been recommended from the doctor to the patient. The drug is sometimes exist in the form of capsules, so the pharmacist must erode the drug first. Usually the process is still done manually which is less saves time. Because in today's tools - the tools are completely automated. With Automatic Tool muller Drugs Accompanied ATmega16 AVR Microcontroller Based LCD Display is possible to ease the burden on pharmacists, where the application is made up of four series, namely a series of push buttons, ATmega16 AVR microcontroller series, LCD series, muller motor driver circuit. Push button as input in the form of a pushbutton. ATmega16 AVR microcontroller as the central control input and outputan the grinding process medication. LCD ( Liquid Crystal Display ) as output capable of displaying output characters , either letters or numbers. Muller motor driver as government Universal AC to drive the motor. As for writing the program used in this application using C language C language is the software that becomes part of the system which are programs that regulate the working of the microcontroller ATmega16 and overall hardware (hardware ) is connected to the microcontroller ATmega16. Keywords : ATmega16 AVR microcontroller, LCD, muller motor driver.
PERENCANAAN FILTER PASIF UNTUK MENINGKATKAN KUALITAS DAYA LISTRIK DI KAMPUS DIPLOMA III FAKULTAS TEKNIK UNDIP Subari, Arkhan; Manan, Saiful
Gema Teknologi Vol 17, No 4 (2014): October 2013 - April 2014
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v17i4.8932

Abstract

Arkhan Subari, Saiful Manan, in this paper explain that most electronic equipment is non-linear load. Likewise with the equipment in campus buildings Diploma III Faculty of Engineering. Non-linear load is a load that has a voltage waveform supplied from non sinusiodal although sinusoidal voltage. Non-sinusoidal wave causes the shape of the voltage becomes distorted or defects that result in decreased quality of power. The defect wave called harmonics. To dampen harmonics on non-linear load can be used filter. With the addition of a filter on the power system, then the waves of unwanted harmonics can be suppressed as small as possible. In addition, harmonic filter at the fundamental frequency can compensate for reactive power and is used to improve the power factor of the system. From the measurement results in the Diploma Program Campus FT Undip found that the influence of harmonic waves big enough. THDv reached 32.13% while the THDi amounted to 7.85%. It affects so cos phi cos phi measured just 0.72. After the installation of a passive filter, the value THDv and THDi be good lebik ie 1.61% and 0.39% to reach 0.94 cos phi measured. Key word: non-linear loads, non-sinusoidal waveform, harmonics, power factor, filter LC
SIMULASI SISTEM PENGHITUNG JUMLAH MOBIL KELUAR DAN PENGHITUNGAN TARIFNYA BERDASARKAN LAMA WAKTU PADA GEDUNG PARKIR MOBIL BERLANTAI TIGA BERBASIS MIKROKONTROLER ATMEGA 8535 Ary M, Ruky Sandra; Manan, Saiful
Gema Teknologi Vol 17, No 3 (2013): April 2013 -October 2013
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v17i3.8927

Abstract

Ruky Sandra Ary M, Saiful Manan, in this paper explain that parking lot which is widely used today do not present an empty parking location data, causing the vehicle entering the parking area must first find an empty parking space. This led to queues of vehicles becomes unavoidable. Even vehicles must berputarputar first to find an empty parking space. Therefore, it needs a parking system that can alert parking block capacity is still empty. Parking tariff determination system also plays an important role, most of the park determines the rate only on the type of vehicle rather than on how much time parking felt unjust for some people. This study designed a microcontroller-based parking system that can determine the number of cars remaining at the same time counting parking rates is a unified tool that can be divided into two, namely, hardware and software as a mechanical system that will work as a control system and the process of calculating tariffs. Keywords: parking system, Microcontroller 8535, Infrared, parking rates, Password
RANCANG BANGUN SISTEM HUMIDIFIER DAN DETEKTOR URINASI BAYI UNTUK MENINGKATKAN KAPABILITAS INKUBATOR BAYI BERBASIS MIKROKONTROLLER Wijayanto, Roy; Subari, Arkhan; Manan, Saiful; Mangkusasmito, Fakhruddin
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2019): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 10 2019
Publisher : Prosiding SNST Fakultas Teknik

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Abstract

Di dunia medis, inkubator biasanya digunakan untuk merawat bayi yang baru lahir. Namun, fitur yang terdapat dalam sistem inkubator terbatas pada kontrol suhu, sementara untuk menunjang kondisi bayi yang baru lahir, kelembaban udara juga menjadi parameter penting. Selain itu, sistem yang dapat mendeteksi kapan bayi buang air kecil, dapat mempercepat penanganan dan perawatan bayi. Humidifier biasanya digunakan sebagai pengontrol kelembaban karena murah dan mudah dioperasikan serta mampu memberikan hasil yang baik, sistem tersebut dikombinasikan dengan sensor DHT-11 agar dapat bekerja berdasarkan perubahan kelembaban di dalam ruangan. Sedangkan untuk mendeteksi keberadaan urin, digunakan sensor YL-83 yang biasanya digunakan untuk mendeteksi air dengan perubahan tegangan output sensor. Seluruh sistem diintegrasikan dengan mikrokontroler ATMEGA 16 untuk mengontrol operasi humidifier dan menerima informasi dari detektor urin. Pada penelitian ini, kelembaban ruangan dipertahankan pada nilai 70%, dan alarm bel akan aktif ketika sensor mendeteksi keberadaan urin. Hasil pengujian menunjukkan bahwa prototipe ini dapat bekerja dengan baik sesuai dengan referensi yang diinginkan.Kata kunci : bayi, detektor urin, humidifier, inkubator,kelembapan.