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Purnawan P.W.,Budi Luhur University | Alaydrus M.,Mercu Buana University
ICCEREC 2015 - International Conference on Control, Electronics, Renewable Energy and Communications | Year: 2015

The big demand on energy does not go hand in hand with the availability and supply of the required ones. Renewable energy could fills this gap. Utilization of solar cell, to exploit the biggest energy source, for household electricity needs is one of the main alternative energy solution. A maximal power output from solar panels can be obtained if the panels is kept aligned with the sun. To do this tracking process, a feedback structure containing of sensors and microcontroller is used. The design of the solar cell system is a dual axis sun tracker based microcontroller Atmega 32 for use in household Intelligent Lighting provides lights for home automation that makes it easy for homeowners, as well as the implementation of Demand Side Management Peak electricity use at the time can be reduced by methods Peak the clipping. Measurement gives data which reveals that solar cell energy supply with dual-axis sun tracker on peak hours of energy gives success in energy efficiency Demand Side Management. As well as using the 4 sides of the LDR sensor that communicates with a dc motor as the driving on a sun tracker also provides maximum input voltage. © 2015 IEEE. Source


Moedjiono S.,Budi Luhur University | Mas'At A.,Agency of Meteorology
Journal of Information Technology Research | Year: 2012

Cloud computing technology utilizing virtual server facility of the Internet services in order to maintain or process the data and applications, will revolutionize the way of how the information systems work in orga-nization due to the simplification of the information technology (IT) management and services by working remotely. The Indonesian Agency of Meteorology, Climatology, and Geophysics (BMKG) as a government institution has the responsibility to disseminate the information of Meteorology, Climatology, Air Quality, and Geophysics through its technical implementation unit (UPT) throughout Indonesian region. An integrated cloud computing technology implementation strategy for MKKuG dissemination information system is needed for BMKG dissemination systems best service, cutting edge technology, and sustainable to its users. This research will use the Strengths, Weaknesses, Opportunities and Threats (SWOT) analysis and the Analytic Network Process (ANP) with Super Decision Software as a tool to determine the need. A cloud computing technology implementation strategy is achieved and presented with four best alternatives, namely the devel-opment of a web centre, implementation of virtual hosting concept, procurement of network infrastructure, and ICT development program. Copyright © 2012, IGI Global. Source


Alkalbani A.S.,University of Buraimi UoB | Mantoro T.,University of Indonesia | Moedjiono S.,Budi Luhur University | Ayu M.A.,University of Indonesia
Proceedings - 4th International Conference on Cyber Security, Cyber Warfare, and Digital Forensics, CyberSec 2015 | Year: 2015

Recently, Wireless Sensor Networks (WSNs) and its applications have obtained considerable momentum due to its growing usage in different applications. However, security and power limits of WSNs are still important matters especially during routing since the early beginning of this research due to few of previous studies take into consideration security threats and energy consumption at the same time. Many existing approaches at most concentrate on cryptography to improve data security but this addresses only a part of the security problem without consideration for high energy consumption. This article presents a hybrid solution that depends on combination between network nodes trustworthiness and energy aware routing mechanism. This solution provides security and minimizes power consumption during routing. Performance and efficiency are measured through simulation results, analysis and comparison with well-known mechanisms. © 2015 IEEE. Source


Danuputri C.,Budi Luhur University | Mantoro T.,University of Indonesia | Hardjianto M.,Budi Luhur University
Proceedings - 4th International Conference on Cyber Security, Cyber Warfare, and Digital Forensics, CyberSec 2015 | Year: 2015

LSB steganography and Vigenere chiper methods are integrated in used for data security validation in this study. This approach used Arithmetic Coding method for data compression and data decompression. To maintain the authenticity of the data file, a hash function (SHA 256) technique was added. This paper presents a prototype called Ste-Chy as a proof of concept of the combination of these techniques. This approach helps the user in terms of the exchange of confidential data through an online share in Android-based media. For the confidential authentication purpose, the confidential message is hidden togetherwith the target image. The quality of the original image and stego images in this work produce an image picture in an acceptable level for the user. The bigger the secret of the message, the compression will produce higher compression ratio. With this approach, security process of exchange of confidential message shared through the online share smartphone is considerably secured especially in an android environment. © 2015 IEEE. Source


Moedjiono S.,Budi Luhur University | Kusdaryono A.,Budi Luhur University
International Journal of Mobile Computing and Multimedia Communications | Year: 2013

Preserving energy of sensor node in wireless sensor network is an effort to prolong the lifetime of network. Energy of sensor node is very crucial because battery powered and irreplaceable. Energy conservation of sensor node is an effort to reduce energy consumption in order to preserve resource for network lifetime. It can be achieved through efficient energy usage by reducing consumption of energy or decrease energy usage while achieving a similar outcome. In this paper, the authors propose power layer energy efficient routing protocol in wireless sensor network, named PLRP, which use power control and multi-hop routing protocol to control overhead of sensor node and create clustering to distribute energy dissipation and increase energy efficiency of all sensor node. The main idea of PLRP is the use of power control, which divide sensor node into group by base station uses layer of energy and maximize the computation energy in base station to reduce computational energy in sensor node for conservation of network lifetime. The performance of PLRP compared to BCDCP and BIDRP based of hierarchical routing protocol. The simulation results show that PLRP achieve 25% and 30% of improvement on network lifetime. © 2013, IGI Global. Source

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