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INDONESIA
GEMA TEKNOLOGI
Published by Universitas Diponegoro
ISSN : 08520232     EISSN : 2656582X     DOI : -
Core Subject : Science,
Gema Teknologi Journal (pISSN : 0852-0232, eISSN : 2656-582X) is an open access journal published by Vocational School, Diponegoro University, Indonesia. Gema Teknologi publishes articles from various engineering disciplines (the results of original scientific research or new scientific studies of literature). Editor receives articles both in English and Indonesian. Gema Teknologi Journal is published 2 (two) times a year, on April and October.
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Articles 8 Documents
Search results for , issue " Vol 17, No 2 (2013): Periode Oktober 2012 - April 2013" : 8 Documents clear
KWH METER DIGITAL DENGAN SISTEM PRABAYAR BERBASIS IC BL0932 DAN MIKROKONTROLER 38024 Lukito, Bimo Kristianto; Winarno, Heru
GEMA TEKNOLOGI Vol 17, No 2 (2013): Periode Oktober 2012 - April 2013
Publisher : GEMA TEKNOLOGI

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Bimo Kristianto Lukito, Heru Winarno, in paper prepaid digital KWH meter based on IC BL0932 and microcontroller 38024 explain that an analog meter kWh used by PLN placed in homes. Has several drawbacks, including the effects of age and weather making its numbers less opaque and can be seen. Read error resulted in the use of electrical power and recording electricity bills electricity that could harm users. To overcome these problems made ​​a digital kWh meter with prepaid systems, with the advantages of digital display are lit and large enough. The system replaced the way payments are prepaid, by using an electronic prepaid card replacement bills. Digital kWh meter is controlled by a microcontroller with type 38024 and type IC BL0932 uses a function to read the voltage and current (with load reaches 1300 watts) to determine the energy used in home installations using the LCD as a data viewer that the amount of electrical energy used at home . The payment system by purchasing an electronic voucher, containing a digital scale (functioning as a pulse) as a comparison of the amount of energy used. This system automatically decides if the magnitude of the voltage reaches a value of 0. Keywords : digital kWh meter, IC BL0932, microcontroller 38024
ALAT PENGUKUR DETAK JANTUNG MENGGUNAKAN PULSESENSOR BERBASIS ARDUINO UNO R3 YANG DIINTEGRASIKAN DENGAN BLUETOOTH Wohingati, Galuh Wahyu; Subari, Arkhan
GEMA TEKNOLOGI Vol 17, No 2 (2013): Periode Oktober 2012 - April 2013
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Galuh Wahyu Wohingati, Arkhan Subari, in paper pulse measuring tool using pulsesensor based on Arduino Uno R3 integrated with Bluetooth explain that emerging disease and claimed the lives of many people is often due to late treatment , when it should be in the modern era has many tools made to overcome this problem , medical devices can only be used by medical experts , and of course takes time and no small cost . as well as heart disease which sometimes can only be detected when it is advanced because of the lack of monitoring , both from people who are sick or from a doctor . Other factors that cause costs adalahkesibukan and not everyone can do medical check- ups regularly . Whereas By knowing the health condition of a persons heart rate will then be awake , do not need expensive care from a doctor , but could by changing lifestyle . Therefore it needs to be made a tool that can measure heart rate , showing whether or not the condition of the heart and of course, this tool can be used by everyone without kecuali.Dengan development of technology and the number of components on the market which can be accessed , Arduino Uno facilities in R3 can be used . Arduino is a physical computing platform that is open source means , Arduino can be developed by many people , not just programmers .But not just a development tool , Arduino is a combination of hardware , programming language and integrated development environment ( IDE ) that is advanced . Paired with a pulse sensor , a media reader analog heart rate is then converted into digital data that is in the readings , then integrated using serial bluetoothsecara so it can be displayed on your android smartphone and used repeatedly as needed measurements .. Keywords : Arduino Uno R3 , pulse sensor , Bluetooth
APLIKASI JAVA DAN MYSQL PADA SISTEM INFORMASI MINIMARKET Sanjaya, David Robby; Yuniarto, Yuniarto
GEMA TEKNOLOGI Vol 17, No 2 (2013): Periode Oktober 2012 - April 2013
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David Robby Sanjaya, Yuniarto, in paper java and mysql application at minimarket information system explain that an endless human needs combined by their daily activities, made a lot of people reluctant to do shopping at a traditional market.  Minimarket or supermarket that finally became a way out for this problem, because it had a good management system for organized the items and the transactions. Regulation of items and money at minimarket or supermarket require a good software.  There are a lot of programming language that can be used for create this software, one of that is Java programming language.  Java in this information system be used for create an interface to user while Mysql be used to manage a databases. Java programming language, Mysql, Netbeans and iReport are tools that applied to this Minimarket  information system. Keywords: Minimarket Information System, iReport, Java, Mysql, Netbeans.
PROTOTIPE PENGANGKAT SAMPAH OTOMATIS PADA SALURAN PINTU AIR BERBASIS MIKROKONTROLER ATMEGA 8535 Kurniawan, Abdillah; Winarno, Heru
GEMA TEKNOLOGI Vol 17, No 2 (2013): Periode Oktober 2012 - April 2013
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Abdillah Kurniawan, Heru Winarno, in paper prototype of waste lifting automatic on channel floodgate based on microcontroller ATMega 8535 explain that waste generated by the community from day to day more and more. Waste problems increasingly complex society is not discipline, in the sense that many people who throw garbage out of place, including dumped in the river. It can disrupt the flow of water. So in this thesis was designed prototype automatic garbage lifting the sluice channel driven by a 12 volt DC motor, used as a carrier conveyor trash removal results, this prototype design using microcontroller 8535 as the system controller. Minimum System 8535 microcontroller itself is as controller input, output, dc motor driver, rang the buzzer in case of opening the floodgates, and lcd M1632 as a viewer status. Trash removal tool aims to reduce the accumulation of garbage in the canal sluice. With these tools can mitigate human performance. Keywords: Microcontroller 8535, Lcd M1632, 12 Volt DC Motor, Buzzer
THERMAL OVERLOAD RELAY SEBAGAI PENGAMAN OVERLOAD PADA MINIATUR GARDU INDUK BERBASIS PROGRAMMABLE LOGIC CONTROLLER (PLC) CP1E-E40DR-A Pradika, Hendy; Moediyono, Moediyono
GEMA TEKNOLOGI Vol 17, No 2 (2013): Periode Oktober 2012 - April 2013
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Hendy Pradika, Moediyono, in paper thermal overload relay as a overload safety in miniature of substation based on programmable logic controller (PLC) CP1E-E40DR-A  explain that at the substation there is a protective device that is very vital function, which we often refer breaker Power (PMT) or also called Circuit Breaker (CB). The function of the PMT itself is to connect or disconnect current / power corresponding branches if there is interference in substations or other transmission device or in the event of overload. At the substations miniature PMT function is replaced by a contactor that functions more or less the same. Contactor performance is governed by OMRON CP1E PLC-E40DR-A which had previously received input from the Thermal Overload Relay in the event of overload. Thermal Overload Relay works on the principle of expansion and bimetal objects. When exposed to high current object, then the object will expand so it will bend and break the current. Excessive current will generate heat, so it can bend bimetal.Hal object will cause the contactor is connected to the Thermal Overload Relay will decide the electric current through the contactor. With this tool, we can realize the expected electric power system more secure in terms of security and reliability so as not to harm humans and the environment. Keywords: substations, protection, PMT, overload, contactors, Thermal Overload Relay, Omron PLC CP1E-E40DR-A
SISTEM KEAMANAN RUMAH OTOMATIS MENGGUNAKAN SENSOR PIR, SENSOR SUHU, SENSOR GAS YANG TERHUBUNG DENGAN TELEPON SELULER BERBASIS MIKROKONTROLER ATMEGA8 DAN MIKROKONTROLER ATMEGA162 DENGAN BACKUP DAYA Sekar A, Khanina Rizki; Subali, Subali
GEMA TEKNOLOGI Vol 17, No 2 (2013): Periode Oktober 2012 - April 2013
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Khanina Rizki Sekar A, Subali, in paper Auto home security system using PIR sensor, temperature sensor, gas sensor connected with mobile phone based on microcontroller atmega162 and atmega8 with backup power explain that given the innumerable acts of criminality is happening around us, especially that threaten the security of residence so that the sense of security and peace becomes expensive. Along with the development of increasingly advanced technology make things easier including the automated home security systems are equipped with sensors, microcontrollers used as modem wavecom regulator as well as an information medium. Where in this system, every room in the house mounted sensor that functions to monitor the condition of the house. The sensor used is a PIR sensor for motion detection, temperature sensor to determine the room temperature and gas sensors to detect gas leaks. Results of the work detection sensor will be processed by a microcontroller ATmega8 then forwarded to the ATMega162 microcontroller via a serial port. Further information will be sent to the mobile phone via modem wavecom homeowners, so homeowners can know the condition of the house. The system is equipped with a battery backup, intended for home security control system to keep working in case of power outage suddenly. Keywords: PIR Sensor, Temperature Sensor, Gas Sensor, Microcontroller, Battery Backup
IMPLEMENTASI ARM MANIPULATOR DAN SENSOR WARNA DALAM PROTOTYPE OTOMATISASI SISTEM PENYORTIR BOX BERWARNA BERBASIS MIKROKONTROLLER AVR ATMEGA 8535 Wibowo, Roby Adi; Subali, Subali
GEMA TEKNOLOGI Vol 17, No 2 (2013): Periode Oktober 2012 - April 2013
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Roby Adi Wibowo, Subali, in paper implementation of ARM manipulator and color sensor in prototype of color box sorter automation system based on microcontroller AVR ATMega 8535 explain that the rapid development of technology at all times encourage people to overcome problems that arise around it. With a view to facilitate the work and time efficiency. Included in the field of automation control systems in a work process. One of these systems automation in sorting colored box, so that a product can be separated from one another and in accordance with the qualifications color. In this final task will be made a colored box sorter automation system using the color sensor as a detector and a manipulator arm actuator to take the box to place each color.   Keywords; Arm manipulator, colours sensor
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): Periode Oktober 2012 - April 2013
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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

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