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Sistem Embedded Cerdas Menggunakan Logika Fuzzy Untuk Efisiensi Konsumsi Energi Listrik Adriman, Ramzi; Asfianda, Muhammad; A, Afdhal; Away, Yuwaldi
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol 4, No 1 (2018)
Publisher : Universitas Ahmad Dahlan

Bertambahnya pertumbuhan industri, penggunaan alat elektronik untuk kebutuhan kantor dan rumah tangga menjadi kontribusi peningkatan konsumsi energi pada setiap tahunnya sehingga berpotensi menimbulkan pemborosan pemakaian energi yang berdampak pada lingkungan dan pemanasan global. Pengendalian konsumsi energi listrik oleh pemerintah dan organisasi peduli ingkungan melalui kampanye kesadaran hemat energi pada masyarakat dinilai belum cukup efektif dan efisien. Penelitian ini membuat purwarupa sistem embedded cerdas yang dapat mengendalikan penggunaan peralatan elektronik menggunakan metode Logika Fuzzy sehingga pengendalian konsumsi energi listrik dapat dilakukan secara otomatis. Sistem ini dirancang dengan menggunakan mikrokontroller Arduino Nano yang diintegrasikan dengan sensor suhu, sensor gerak dan modul Real Time Clock (RTC). Pada tahap pengujian kinerja, sistem ini dihubungkan dengan berbagai peralatan elektronik seperti pendingin ruangan, lampu, dan tempat penghubung arus listrik (stopkontak). Berdasarkan hasil pengujian dapat disimpulkan bahwa penerapan sistem embedded cerdas mampu mengendalikan konsumsi energi dan menghemat energi listrik hingga 28,71%.

Sistem Embedded Cerdas Menggunakan Logika Fuzzy Untuk Efisiensi Konsumsi Energi Listrik Ramzi Adriman; Muhammad Asfianda; Afdhal A; Yuwaldi Away
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol 4, No 1 (2018)
Publisher : Universitas Ahmad Dahlan

Bertambahnya pertumbuhan industri, penggunaan alat elektronik untuk kebutuhan kantor dan rumah tangga menjadi kontribusi peningkatan konsumsi energi pada setiap tahunnya sehingga berpotensi menimbulkan pemborosan pemakaian energi yang berdampak pada lingkungan dan pemanasan global. Pengendalian konsumsi energi listrik oleh pemerintah dan organisasi peduli ingkungan melalui kampanye kesadaran hemat energi pada masyarakat dinilai belum cukup efektif dan efisien. Penelitian ini membuat purwarupa sistem embedded cerdas yang dapat mengendalikan penggunaan peralatan elektronik menggunakan metode Logika Fuzzy sehingga pengendalian konsumsi energi listrik dapat dilakukan secara otomatis. Sistem ini dirancang dengan menggunakan mikrokontroller Arduino Nano yang diintegrasikan dengan sensor suhu, sensor gerak dan modul Real Time Clock (RTC). Pada tahap pengujian kinerja, sistem ini dihubungkan dengan berbagai peralatan elektronik seperti pendingin ruangan, lampu, dan tempat penghubung arus listrik (stopkontak). Berdasarkan hasil pengujian dapat disimpulkan bahwa penerapan sistem embedded cerdas mampu mengendalikan konsumsi energi dan menghemat energi listrik hingga 28,71%.

Pengaruh Link Relay Terhadap Kinerja Komunikasi Kooperatif Vehicle-to-Vehicle (V2V) ISNAN MUHARRAM; RAMZI ADRIMAN; NASARUDDIN NASARUDDIN
Jurnal Elkomika Vol 10, No 1 (2022): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektr
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v10i1.90

ABSTRAKKebutuhan komunikasi bergerak saat ini sangat tinggi, Vehicular Ad-hoc Network (VANET) merupakan metode teknologi telekomunikasi untuk komunikasi bergerak pada kendaraan. Penelitian ini dilakukan untuk mendapatkan metode terbaik dari komunikasi bergerak pada kendaraan dengan mempertimbangkan pengaruh Kecepatan kendaraan dan fading terhadap kinerja jaringan. Metode yang digunakan pada paper ini menggunakan jaringan single-relay yang disimulasikan menggunakan software MATLAB. Parameter kinerjanya adalah Bit Error Rate (BER) dan throughput untuk jaringan sistem komunikasi kooperatif Vehicle to Vehicle (V2V) dengan kondisi link relay Line of Sight (LOS) dan Non Line of Sight (NLOS). Kemudian, modulasi 16-QAM, 32-QAM dan 64-QAM digunakan untuk menguji parameter tersebut. Hasil simulasi menunjukkan bahwa kinerja sistem komunikasi kooperatif V2V dengan modulasi 16-QAM lebih baik dibandingkan 32-QAM dan 64-QAM untuk kondisi LOS dan NLOS. Sehingga usulan penelitian ini dapat menjadi solusi untuk perkembangan sistem komunikasi kooperatif V2V.Kata kunci: VANET, V2V, Link relay, Bit Error Rate (BER), Throughput. ABSTRACTThe need for mobile communication is currently very high; vehicular Ad-hoc Network (VANET) is the telecommunications technology method for mobile communication in vehicles. This research was conducted to obtain the best mobile communication method in vehicles by considering the effect of vehicle speed and fading on network performance. The method used in this paper uses a single-relay network which is simulated using MATLAB software. The performance parameters are Bit Error Rate (BER) and Throughput for the Vehicle to Vehicle (V2V) cooperative communication system network with Line of Sight (LOS) and Non-Line of Sight (NLOS) link relay conditions. Then, 16-QAM, 32-QAM, and 64-QAM modulations were used to test these parameters. The simulation results show that the performance of the V2V cooperative communication system with 16-QAM modulation is better than 32-QAM and 64-QAM for LOS and NLOS conditions so that this research proposal can be a solution for the development of a V2V cooperative communication system.Keywords: VANET, V2V, link relay, Bit Error Rate (BER), Throughput.

Perancangan Aplikasi Peristiwa Kriminal Dengan Pendekatan Contextual Design Yusrizal Yusrizal; Ramzi Adriman; Nasaruddin Syafie
InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan Vol 3, No 2 (2019): InfoTekJar Maret
Publisher : Universitas Islam Sumatera Utara

Pemetaan lokasi kriminal sangat berguna bagi pihak kepolisian dan masyarakat. Pada proses kerja selama ini, Kepolisian Republik Indonesia (POLRI) masih menggunakan pemetaan dalam bentuk konvensional seperti gambar peta pada kertas yang ditempelkan pada kantor kepolisian. Hingga saat ini, jumlah personel kepolisian pada suatu wilayah belum mencapai tahap ideal, yaitu 1 (satu) orang polisi untuk 100 orang masyarakat, sehingga pengawasan yang dilakukan akan menjadi kurang efektif. Meskipun demikian, pihak kepolisian masih menggunakan data dan informasi yang disimpan pada arsip serta peta konvensional yang memiliki banyak kelemahan seperti terbatasnya informasi yang ditampilkan, dan daya tahan peta serta arsip yang mudah rusak. Berdasarkan permasalahan yang terjadi, telah dilakukan penelitian tentang aplikasi pemetaan criminal, akan tetapi aplikasi tersebut masih memiliki kekurangan seperti belum menggunakan pendekatan atau metode yang dikenal dalam proses perancangan perangkat lunak untuk mengetahui kebutuhan user. Dari beberapa permasalahan yang ditemukan pada peta kriminal yang terdapat di kantor kepolisian, maka ditawarkan solusi dalam proses perancangan aplikasi peristiwa kriminal menggunakan pendekatan contextual design yang mampu mendapatkan kebutuhan user di lapangan. Sementara itu, dalam proses perancangan aplikasi, terdapat 6 (enam) langkah yang dilakukan, mulai dari wawancara kontekstual, interpretasi, konsolidasi data, visioning, storyboarding, user environment design, dan prototyping. Dengan adanya perancangan aplikasi peristiwa kriminal menggunakan pendekatan Contextual Design, maka diharapkan dapat memaksimalkan pengalaman user dalam menggunakan aplikasi sehingga menjadi lebih menyenangkan, menangkap kebutuhan user dengan benar, serta mendapatkan keluaran yang sesuai dengan kebutuhan mereka. Hal ini bertujuan untuk membantu pihak kepolisian sehingga dapat mempermudah kinerja mereka dalam proses mengelola data criminal.

Implementing a non-local means method to CTA data of aortic dissection Maya Fitria; Cosmin Adrian Morariu; Josef Pauli; Ramzi Adriman
Jurnal Teknologi dan Sistem Komputer Volume 9, Issue 3, Year 2021 (July 2021)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jtsiskom.2021.14125

It is necessary to conserve important information, like edges, details, and textures, in CT aortic dissection images, as this helps the radiologist examine and diagnose the disease. Hence, a less noisy image is required to support medical experts in performing better diagnoses. In this work, the non-local means (NLM) method is conducted to minimize the noise in CT images of aortic dissection patients as a preprocessing step to produce accurate aortic segmentation results. The method is implemented in an existing segmentation system using six different kernel functions, and the evaluation is done by assessing DSC, precision, and recall of segmentation results. Furthermore, the visual quality of denoised images is also taken into account to be determined. Besides, a comparative analysis between NLM and other denoising methods is done in this experiment. The results showed that NLM yields encouraging segmentation results, even though the visualization of denoised images is unacceptable. Applying the NLM algorithm with the flat function provides the highest DSC, precision, and recall values of 0.937101, 0.954835, and 0.920517 consecutively.

Seleksi Beasiswa Untuk Perguruan Tinggi Berdasarkan Pendekatan Keputusan Berkeadilan dengan Fuzzy Mamdani Amsar Amsar; Rizal Munadi; Ramzi Adriman
Jurnal Inotera Vol. 2 No. 2 (2017): July-December 2017
Publisher : LPPM Politeknik Aceh Selatan

The scholarship is one of the funding schemes of study in an education system. Various models and names of scholarship schemes are offered on terms that have been determined by the scholarship provider. The essence of these conditions is the trust and confidence of the funders of the scholarship recipients and is projected to complete the study period as per the allocated funds. In general, funders are very concerned about the issue of academic qualification as one of the main indicators. However, for prospective students who wish to pursue higher education from coming from orphaned families and from less financially qualified families, with good academic qualifications, not yet a parameter in the selection process of scholarship recipients. Based on this fact, this problem would like to find solution in this research and submitted the selection model of scholarship with fair decision approach. This study aims to design a fair decision-making system as a tool for selection of scholarship recipients that prioritize the values of justice by prioritizing scholarship recipients from among orphans and poor. This research proposes two methods: Fuzzy Mamdani and weighting method, with 4 input parameters which are used as variables: children status and economic level, residence condition, children achievement and family dependent. Simulation testing performed by considering the parameters set is a more effective and efficient decision model for the prospective scholarship recipients. To obtain a competent recipient, then the screening process by ranking to be declared passed the selection and received as the recipient of scholarship in accordance with the number of quotas provided. This selection model becomes an alternative and provides opportunities for orphans and the poor to continue higher education and improve the human resource index as well as meet national education goals.

Sybil Attack Prediction on Vehicle Network Using Deep Learning Zulfahmi Helmi; Ramzi Adriman; Teuku Yuliar Arif; Hubbul Walidainy; Maya Fitria
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 6 No 3 (2022): Juni 2022
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Vehicular Ad Hoc Network (VANET) or vehicle network is a technology developed for autonomous vehicles in Intelligent Transportation Systems (ITS). The communication system of VANET is using a wireless network that is potentially being attacked. The Sybil attack is one of the attacks that occur by broadcasting spurious information to the nodes in the network and could cause a crippled network. The Sybil strikes the network by camouflaging themselves as a node and providing false information to nearby nodes. This study is conducted to predict the Sybil attack by analyzing the attack pattern using a deep learning algorithm. The variables exerted in this research are time, location, and traffic density. By implementing a deep learning algorithm enacting the Sybil attack pattern and combining several variables, such as time, position, and traffic density, it reaches 94% of detected Sybil attacks.

Heart Attack Notification and Monitoring System Using Internet of Things Maya Fitria; Ramzi Adriman; Irham Muhammaddin Batubara; Akhyar Bintang
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 6 No 6 (2022): Desember 2022
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29207/resti.v6i6.4509

People are frequently shocked when someone passes away suddenly without any prior symptoms. One of the contributing factors is a heart attack. This condition might occur anywhere and at any time. A sudden heart attack can be highly perilous for a person who is alone, without family members or friends because the family cannot be informed of the victim's condition or their location. Therefore, it is vital to raise awareness of heart attacks. With the support of the Internet of Things, this study aims to develop a wearable device that people may use to monitor their heart health and connect with hospitals to get alerts in case of a heart attack. This system also provides family members with access to a web-based patient monitoring tool. The heart beat is considered as the parameter in developing this system. There are three types of evaluation which are conducted in this study, namely: 1) Sub-system evaluation; 2) Black-box testing; and 3) Integrating system testing. The three evaluation results show that all assembled hardware components are work properly and the system effectively satisfies the objectives of monitoring, buzzer activation, hospital and patient family notification, and so forth, with 1.96% average sensor error, which is still considerably acceptable.

Accumulator-free Hough Transform for Sequence Collinear Points Rudi Kurniawan; Zahrul Fuadi; Ramzi Adriman
Aceh International Journal of Science and Technology Vol 10, No 2 (2021): August 2021
Publisher : Graduate Program of Syiah Kuala University

The perception, localization, and navigation of its environment are essential for autonomous mobile robots and vehicles. For that reason, a 2D Laser rangefinder sensor is used popularly in mobile robot applications to measure the origin of the robot to its surrounding objects. The measurement data generated by the sensor is transmitted to the controller, where the data is processed by one or multiple suitable algorithms in several steps to extract the desired information. Universal Hough Transform (UHT) is one of the appropriate and popular algorithms to extract the primitive geometry such as straight line, which later will be used in the further step of data processing. However, the UHT has high computational complexity and requires the so-called accumulator array, which is less suitable for real-time applications where a high speed and low complexity computation is highly demanded. In this study, an Accumulator-free Hough Transform (AfHT) is proposed to reduce the computational complexity and eliminate the need for the accumulator array. The proposed algorithm is validated using the measurement data from a 2D laser scanner and compared to the standard Hough Transform. As a result, the extracted value of AfHT shows a good agreement with that of UHT but with a significant reduction in the complexity of the computation and the need for computer memory.

Efisiensi Daya Protokol Quantize and Forward Pada Sistem Komunikasi Kooperatif Multi-relay Nasaruddin Nasaruddin; Rony Kurnia; Ramzi Adriman
Jurnal Rekayasa Elektrika Vol 13, No 1 (2017)
Publisher : Universitas Syiah Kuala

One of effective diversity techniques to combat fading on wireless channel is a cooperative communication system in which a source sends information through several relays and then forward it to a destination. A cooperative communication system has shown increased the system performance and reduced the energy consumption. However, it depends on the used relay mechanism that is relay protocols such as quantize and forward (QF) and amplify and forward (AF). In the previous research, energy efficiency of AF relay has investigated for a single-relay cooperative system, but multi-relay is more practical. Therefore, this research focuses on power efficiency in multi-relay cooperative communication system using QF protocol. The research method used is mathematical analysis and computer simulation for outage probability and power efficiency in the multi-relay QF. Simulation result found that multi-relay QF system could provide a high power efficiency, but the efficiency is reduced when the distance ratio increases. Power efficiency can be increased by adding the number of relays in the system. A comparison of power efficiency for QF and AF protocols has simulated, in which power efficiency of multi-relay QF is higher than that of multi-relay AF at distance ratio and power transmit. Thus, multi-relay QF system can provide high performance and power efficiency in the cooperative communication system.

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