Jurnal Informatika dan Teknik Elektro Terapan
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RANCANG BANGUN PROTOTYPE PENJEMUR PAKAIAN OTOMATIS BERBASIS MIKROKONTROLER ATMEGA8535
Full text linkAbstract Currently the application of sensors to facilitate human work is increasing. One is the use of rain sensors applied in clothes horse. Microcontroller will receive the signal from the sensor, and gave the command to the motor driver for DC motor command rotates left or right. DC motor rotation direction is determined by the direct orders of the Microcontroller. Microcontroller as the brain to rule, so in order not to rely on any of the DC motor running. Clothesline able to move as far as approximately 1.5 meters. The goal is to roll the rail motors clothesline, clothesline or clothes that do not become wet because of the rain. Once the clothes horse entered the microcontroller will tell the blower to live.Keywords : Rain Sensor, Motor Drivers, DC Moto
Pengaturan Tegangan PLTMH 5000 WATT Menggunakan Trafo Dengan Tap Yang Terkontrol Mikrokontroler ATmega 8535
No full textAbstractTalang Java Village in Sukau district, West Lampung, is a villages that have no access to electricity of PT. PLN (Persero). To meet the demand for electricity, people used the MHP(micro hydro power plants) as a source of electrical energy. MHP in talang Java village have several problems, which one is the distance of a potential energy source to residential areas which resulted distance the center of the load to generator It is cause voltage unstable system so that the voltage at the load side at low level. To overcome problem of unstable voltage, designed a tool in the form of a transformer which can regulate the voltage on the load side to a safe level. Moreover the transformer equipped with a control circuit based AT Mega 8535 microcontroller. The use of a controller circuit aims to control voltage changes in MHP. From the test results, found that the load side voltage after mounted transformer, an increase. At first the voltage on the load side at the level of 150 volt, then after the installation of transformers, voltage level is at 180 volt-220 volt.Keyword: Transformer, Voltage, Microcontrolle
SIMULASI DAN ANALISA SCHEDULING SERVICE CLASS PADA JARINGAN WIMAX MENGGUNAKAN OPNET MODELER
Full text linkAbstract Human need for information now pushing the demand for internet data access speed high rises rapidly. The service offers diverse include text, sound, video, and data. It has become even daily needs that can not be separated from human life. So the need for technology that can deliver voice, data, and video with better quality. This study discusses the application of scheduling service class on data communications applications in the Fixed WiMAX network. Fixed WiMAX network is simulated using OPNET Modeler. Network design performed using a single BS, SS 16 pieces, and the server as a source of traffic. Data is collected for ten minutes. The simulation results obtained show that the application of sound, UGS service class has the greatest value is 3 Mbps throughput and jitter smallest value that is close to 0 s. In video applications, rtPS service class has the greatest value of throughput is 44 Mbps and has the smallest delay value was 0.17 s. On the application file transfer, nrtPS service class has the greatest value is 6,745,187 bps throughput and has the smallest delay value is 0.014 s. In the web browsing application, nrtPS service class has the greatest value is 8.2 Mbps throughput and has the smallest delay value is 0.022 s.Keywords : fixed WiMAX, scheduling service, Opnet Modele
RANCANG BANGUN SISTEM INFORMASI AKADEMIK MENGGUNAKAN PHP DAN MYSQL (Studi Kasus pada Fakultas Teknik Universitas Lampung)
Full text linkAbstractStarting from 2000, the Academic Information System (SIAKAD) could be accessed on-line by the entire academic community of the University of Lampung. SIAKAD used for academic purposes at the University of Lampung, such as card-making Plan Study (KRS), and Study Result Card (KHS). Faculty of Engineering, University of Lampung, which is one of the faculty who are in the shade of the University of Lampung also been wearing SIAKAD on-line for academic administration for its students. But in reality, SIAKAD on-line that used still had some shortcomings, namely, the absence of a recapitulation of how many students pass a graduation period, the average GPA of a graduation, the average GPA per class, how many students graduate, active, Drop Out (DO) a generation in one department, and the average of study period per period graduates. Therefore, in this study there had been made academic information system contains solutions to some of the shortcomings of the SIAKAD on-line used by the University of Lampung and were focused only on the Faculty of Engineering, University of Lampung. The information system was built using the programming language PHP version 5.3.5 and MySQL version 5.0.7 as its DBMS. At first the information system was created on the local host server and then uploaded to the web server of the Faculty of Engineering, University of Lampung. Once the information system was built, the system tested. Testing was done by two scenarios, namely offline scenario and online scenario. In the offline testing, information system that was built could show how average GPA per class, average GPA per period of graduation, student statistics, as well as how many students were active, graduated, not graduated, dropped out (DO), and resigned themselves. Online scenario was done after the system information uploaded to the web server of the Faculty of Engineering. All existing features were also working as intended.Keywords: SIAKAD, information system, modified waterfall, localhost server
SIMULASI NETWORK REFERENCE MODEL PADA JARINGAN WIMAX
Full text linkAbstract WiMAX Forum has introduced a logical representation for WiMAX network architecture known as the Network Reference Model. NRM (Network Reference Model) has the function of an entity and reference point where the function is defined interoperability between these entities function. An NRM also defines the reference point that connects R1 to R8 entity functions. The research was conducted by simulating the reference point R1 to R8 that exist in NRM using the software simulator. The design of the network is done by making two scenario are used to represent a reference point. Two scenario using a single ASN-Gateway dan two ASN-Gateway.Key Words: WiMAX, Network Reference Model, reference poin