Articles
<![CDATA[Prototipe Otomasi Pengendalian Kadar Air Berbasis Logika Fuzzy ]]>
<![CDATA[Irma Yunita Masturi]]>;
<![CDATA[Bayu Erfianto]]>;
<![CDATA[Andrian Rakhmatsyah]]>
<![CDATA[ eProceedings of Engineering Vol 2, No 3 (2015): Desember, 2015 ]]>
Publisher : <![CDATA[eProceedings of Engineering ]]>
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<![CDATA[Perkembangan teknologi saat ini banyak dikembangkan sistem pembudidayaan tanaman dengan memanfaatkan lahan sempit di sekitar daerah perkotaan yang mampu menghasilkan tanaman dengan kualitas baik dan sehat secara mandiri. Selain itu, keterbatasan waktu juga mengakibatkan kesulitan pemantauan tanaman seperti kontrol penyiraman dan intensitas penyinaran sehari-hari menjadi tantangan tersendiri yang sering ditemui. Tanaman membutuhkan air dan cahaya yang cukup agar dapat tumbuh maksimal sehingga perlu adanya pemantauan dan kontrol yang baik terhadap faktor-faktor pertumbuhan tanaman. Dalam penelitian ini dibangun prototipe sistem pemantauan kondisi tanaman dan pengendalian kadar air tanah pada tanaman. Pemantauan dan kontrol menggunakan data kondisi tanaman dalam selang waktu tertentu kemudian diolah menjadi referensi aksi aktuator. Model perancangan sistem memanfaatkan teknologi WSN (Wireless Sensor Network). Data diolah dan disimpulkan menjadi klasifikasi kondisi tanaman menggunakan metode Logika Fuzzy sebagai kendali sistem dan memberikan keluaran berupa aksi aktuator. Implementasi sistem yang dibangun menggunakan multisensor yaitu kadar air tanah, intensitas cahaya, ketinggian, waterflow dan pompa air sebagai aktuator. Hasil dari sistem ini berupa data kondisi tanaman, klasifikasi kondisi tanah berdasarkan hasil pengolahan akuisisi data sensor, dan aksi aktuator pompa berdasarkan hasil fuzzy. Kata Kunci : Wireless Sensor Network, logika fuzzy, aktuator.]]>
<![CDATA[Time Series On-Board Air Quality Index ]]>
<![CDATA[Benedictus Augusta Vianney]]>;
<![CDATA[Bayu Erfianto]]>
<![CDATA[ Indonesia Journal on Computing (Indo-JC) Vol. 8 No. 1 (2023): April, 2023 ]]>
Publisher : <![CDATA[School of Computing, Telkom University ]]>
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DOI: 10.34818/INDOJC.2023.8.1.695
<![CDATA[With the rapid development of technology, individuals forget about their health, plus during the pandemic, the indoor air quality becomes more of a concern. Maintaining air quality to be healthy and good for humans is by keeping the amount of pollutants in the air, such as Carbon Dioxide (CO2), Volatile Organic Compound (VOC), and Formaldehyde (HCHO), at a predetermined and agreed threshold. We propose an on-board air quality index detection system for indoor and forecast the AQI in the future. The system will use a Raspberry Pi 4 and a WP6003 sensor device that will capture parameters for the AQI. The parameter data is analyzed using a correlation matrix to determine the parameters that affect each other. Then classified using fuzzy logic to determine the quality index based on the value of each parameter. Then forecast using the ARIMA and LSTM methods for the next 30 minutes. The forecasting accuracy is calculated using the RMSE and MAPE metrics. The result shows that CO2, VOC, and HCHO are related. Comparison of the forecasting results of the two methods concluded that the LSTM outperformed ARIMA to forecast the AQI for the next 30 minutes based on the previous 10 hours of data.]]>
<![CDATA[Implementation of Event-Based Dynamic Authentication on MQTT Protocol ]]>
<![CDATA[Rizka Reza Pahlevi]]>;
<![CDATA[Parman Sukarno]]>;
<![CDATA[Bayu Erfianto]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 15, No 2 (2019) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v15i2.13963
<![CDATA[This paper proposes an authentication mechanism on the MQ Telemetry Transport (MQTT) protocol. The exchange of data in the IoT system became an important activity. The MQTT protocol is a fast and lightweight communication protocol for IoT. One of the problems with the MQTT protocol is that there is no security mechanism in the initial setup. One security attack may occur during the client registration phase. The client registration phase has a vulnerability to accept false clients due to the absence of an authentication mechanism. An authentication mechanism has been previously made using Transport Layer Security (TLS). However, the TLS mechanism consumes more than 100 KB of data memory and is not suitable for devices that have limitations. Therefore, a suitable authentication mechanism for constraint devices is required. This paper proposes a protocol for authentication mechanisms using dynamic and event-based authentication for the MQTT protocol. The eventbased is used to reduce the computing burden of constraint devices. Dynamic usage is intended to provide different authentication properties for each session so that it can improve authentication security. As results, the applied of the event-based dynamic authentication protocol was successful in the constraint devices of microcontrollers and broker. The microcontroller, as a client, is able to process the proposed protocol. The client uses 52% of the memory for the proposed protocol and only consumes 2% higher than the protocol without security. The broker can find authentic clients and constraint devices capable of computing to carry out mutual authentication processes to clients. The broker uses a maximum of 4.3 MB of real memory and a maximum CPU usage of 3.7%.]]>
<![CDATA[Secure MQTT PUF-Based Key Exchange Protocol for Smart Healthcare ]]>
<![CDATA[Rizka Reza Pahlevi]]>;
<![CDATA[Parman Sukarno]]>;
<![CDATA[Bayu Erfianto]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 17, No 2 (2021) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v17i2.20428
<![CDATA[Replay and eavesdropping attacks threaten the information security that is held by smart healthcare devices. An authenticated key exchange method to provide cryptography sessions is the best way to provide information security and secure authentication. However, smart healthcare devices do not have sufficient computation to perform heavy cryptography processes due to the limitations of the embedded devices used. We propose an authenticated key exchange protocol based on a physical unclonable function (PUF). The proposed protocol aimed to countermeasure from replay and eavesdropping attacks. We designed our protocol with one handshake process and three authentication processes. We evaluated our proposed protocol using Tamarin Prover. From the results of the evaluation, our proposed protocol can exchange properties correctly between communication actors and is valid in proving each lemma in eavesdropping and replay attacks.]]>
<![CDATA[Implementasi Fuzzy Logic Control pada Pelacakan Panel Surya ]]>
<![CDATA[Angga Juliat Saputra]]>;
<![CDATA[Bayu Erfianto]]>;
<![CDATA[Mas'ud Adhi Saputra]]>;
<![CDATA[SIDIK Prabowo]]>;
<![CDATA[Novian Anggis Suwastika]]>
<![CDATA[ Jurnal Teknologi Bahan dan Barang Teknik Vol 9, No 1 (2019) ]]>
Publisher : <![CDATA[Balai Besar Bahan dan Barang Teknik ]]>
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DOI: 10.37209/jtbbt.v9i1.107
<![CDATA[A dynamic solar panel equipped with a fuzzy-method tracking system has been developed to improve its performance. In this solar panel with tracking system, the voltage and current of the solar panels were used as inputs for the fuzzy algorithms. From observations for seven days, dynamic and static solar panels produced the highest voltage of 21.65 V and 20.13 V, as well the highest current of 0.58 A and 0.54 A respectively. Dynamic solar panel could produce an average voltage of 19% and an average current of 16% higher than static solar panels. The length time of battery charging on a dynamic solar panel was one hour shorter than that of static solar panel.Panel surya dinamis yang dilengkapi sistem pelacakan dengan metoda fuzzy telah dikembangkan untuk meningkatkan kinerjanya. Dalam panel surya dengan sistem pelacakan ini, tegangan dan arus dari panel surya digunakan sebagai input untuk fuzzy algorithms. Dari pengamatan selama tujuh hari, panel surya dinamis dan statis menghasilkan berturut-turut tegangan tertinggi 21,65 V dan 20,13 V, serta arus 0,58 A dan 0,54 A. Panel surya dinamis dapat menghasilkan tegangan rata-rata 19% dan arus rata-rata 16% lebih tinggi daripada panel surya statis. Lama waktu pengisian baterai pada panel surya dinamis satu jam lebih singkat daripada panel surya statis.]]>
<![CDATA[Secure MQTT PUF-Based Key Exchange Protocol for Smart Healthcare ]]>
<![CDATA[Rizka Reza Pahlevi]]>;
<![CDATA[Parman Sukarno]]>;
<![CDATA[Bayu Erfianto]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 17, No 2 (2021) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v17i2.20428
<![CDATA[Replay and eavesdropping attacks threaten the information security that is held by smart healthcare devices. An authenticated key exchange method to provide cryptography sessions is the best way to provide information security and secure authentication. However, smart healthcare devices do not have sufficient computation to perform heavy cryptography processes due to the limitations of the embedded devices used. We propose an authenticated key exchange protocol based on a physical unclonable function (PUF). The proposed protocol aimed to countermeasure from replay and eavesdropping attacks. We designed our protocol with one handshake process and three authentication processes. We evaluated our proposed protocol using Tamarin Prover. From the results of the evaluation, our proposed protocol can exchange properties correctly between communication actors and is valid in proving each lemma in eavesdropping and replay attacks.]]>
<![CDATA[Implementation of Event-Based Dynamic Authentication on MQTT Protocol ]]>
<![CDATA[Rizka Reza Pahlevi]]>;
<![CDATA[Parman Sukarno]]>;
<![CDATA[Bayu Erfianto]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 15, No 2 (2019) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v15i2.13963
<![CDATA[This paper proposes an authentication mechanism on the MQ Telemetry Transport (MQTT) protocol. The exchange of data in the IoT system became an important activity. The MQTT protocol is a fast and lightweight communication protocol for IoT. One of the problems with the MQTT protocol is that there is no security mechanism in the initial setup. One security attack may occur during the client registration phase. The client registration phase has a vulnerability to accept false clients due to the absence of an authentication mechanism. An authentication mechanism has been previously made using Transport Layer Security (TLS). However, the TLS mechanism consumes more than 100 KB of data memory and is not suitable for devices that have limitations. Therefore, a suitable authentication mechanism for constraint devices is required. This paper proposes a protocol for authentication mechanisms using dynamic and event-based authentication for the MQTT protocol. The eventbased is used to reduce the computing burden of constraint devices. Dynamic usage is intended to provide different authentication properties for each session so that it can improve authentication security. As results, the applied of the event-based dynamic authentication protocol was successful in the constraint devices of microcontrollers and broker. The microcontroller, as a client, is able to process the proposed protocol. The client uses 52% of the memory for the proposed protocol and only consumes 2% higher than the protocol without security. The broker can find authentic clients and constraint devices capable of computing to carry out mutual authentication processes to clients. The broker uses a maximum of 4.3 MB of real memory and a maximum CPU usage of 3.7%.]]>
<![CDATA[INFRAMAP WEBGIS SEBAGAI SOLUSI PEMETAAN INFRASTRUKTUR DI KABUPATEN MAJALENGKA MENGGUNAKAN APLIKASI FITUR PETA ]]>
<![CDATA[Bayu Erfianto]]>;
<![CDATA[Ilhamdaniah Ilhamdaniah]]>;
<![CDATA[Vera Juntriesta]]>;
<![CDATA[Monterico Adrian]]>
<![CDATA[ Jurnal Sinergitas PKM & CSR Vol 7, No 3 (2023): DECEMBER ]]>
Publisher : <![CDATA[Universitas Pelita Harapan ]]>
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DOI: 10.19166/jspc.v7i3.7772
<![CDATA[Pemerintah Daerah Kabupaten Majalengka telah berusaha untuk membangun sistem informasi spasial yang menampilkan data infrastruktur di Kabupaten Majalengka. Namun hingga saat ini, pengelolaan data dan informasi spasial yang dilaksanakan pemerintah maupun swasta masih dilakukan secara parsial sesuai dengan kebutuhan dan kebijakan masing-masing. Akibatnya adalah daya guna data dan informasi spasial tersebut terbatas pada instansi masing-masing dan sekaligus membatasi pemanfaatannya bagi masyarakat atau investor swasta. Kondisi saat ini Pemda Kabupaten Majalengka telah mempunyai portal/web yang menampilkan data dan informasi pembangunan, namun informasinya masih secara parsial. Sebagai solusi untuk mengatasi permasalahan tersebut, beberapa staf dosen dari Telkom University dan Universitas Pendidikan bekerjasama dengan BAPPEDALITBANG Kabupaten Majalengka telah membangun InfraWeb, yaitu suatu aplikasi WebGIS untuk menampilkan informasi secara spasial tentang pengelolaan data infrastruktur dan kewilayahan Kabupaten Majalengka. InfraWeb dapat diakses melalui Internet dan terintegrasi dengan portal pemerintah daerah yang ada saat ini. InfraWeb didesain untuk mengelola dan menyajikan data dan informasi mengenai infrastruktur di Kabupaten Majalengka dengan fitur tematik seperti irigasi, jalan dan jembatan, fasilitas Pendidikan, dll. Dengan demikian, setiap dinas / instansi memungkinkan untuk memperbaharui informasi melalui peta spasial sesuai tema secara independen tanpa menggangu sistem informasi peta spasial secara keseluruhan. Data spasial yang ada juga dapat dipergunakan oleh antar instansi yang terkait untuk keperluan pendataan, pembangunan, pemeliharaan atas asset dan potensi daerah.]]>
<![CDATA[Accuracy Improvement for Indoor Positioning Using Decawave on ESP32 UWB Pro with Display and Regression ]]>
<![CDATA[Hapsari, Gita Indah]]>;
<![CDATA[Munadi, Rendy]]>;
<![CDATA[Erfianto, Bayu]]>;
<![CDATA[Irawati, Indrarini Dyah]]>
<![CDATA[ Journal of Robotics and Control (JRC) Vol 5, No 3 (2024) ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
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DOI: 10.18196/jrc.v5i3.20825
<![CDATA[In UWB-based indoor positioning, it is important to observe the ranging performance of the UWB module to prevent positioning errors. Ranging is the initial process in computing positioning. This research aims to observe the ranging accuracy and precision of the ESP32 UWB Pro with a Display module and analyze its performance in indoor positioning using TDoA and Trilateration. The ranging method was held using the SS-TWR which is the basic ranging used generally in UWB. ESP32 Pro is a module consisting of ESP32 and OLED display which is integrated with Decawave DW 1000. Analysis of 6750 ranging error data is carried out to determine the appropriate method to increase accuracy. The convergence of error ranges that occur leads to the use of regression as an error mitigation method for Decawave on the ESP32 UWB Pro with Display module. Increasing the accuracy of ranging regression can reduce the error from MAE of 79.98cm to only 5.05cm. It’s applied to positioning to obtain the accuracy and precision performance of the TDoA and Trilateration positioning. The resulting MAE values are 7.47cm for X and 10.49cm for Y in TDoA Positioning. Meanwhile, in Trilateration, the MAE was 8.15cm for X and 8.47cm for Y. Our findings indicate that an increase in ranging accuracy with regression had an impact on positioning accuracy. However, the spread of error positioning shows that it’s still weak in precision.]]>
