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Rancang Bangun Sistem Lampu Jalan Pintar Nirkabel Berbasis Teknologi Zigbee Harry Sudibyo S; Amelinda Arum W; Gde Dharma Nugraha; Gunawan Wibisono
TESLA: Jurnal Teknik Elektro Vol 17, No 1 (2015): TESLA: Jurnal Teknik Elektro
Publisher : Universitas Tarumanagara

Pada penelitian ini dirancang sistem lampu jalan pintar nirkabel berbasis ZigBee (Smart Wireless Street Lighting, SWSL) yang menggunakan sumber tenaga surya dan jaringan listrik Perusahaan Listrik Negara sebagai sumber daya cadangan. SWSL menggunakan sistem embedded dengan kontroler yang dilengkapi sensor cahaya dan gerak untuk mengaktifkan lampu sesuai kondisi lingkungan. SWSL beroperasi secara otomatis sehingga memerlukan sistem monitoring agar diketahui kondisi dan kerusakan lampu berdasarkan data sensor arus dan tegangan. Untuk memudahkan pengawas, terdapat fitur pengendalian jarak jauh dan penghitungan konsumsi energi SWSL. ZigBee merupakan protokol teknologi nirkabel IEEE 802.15.4 yang bersifat terbuka pada frekuensi 2.4 GHz. Aplikasinya memungkinkan untuk proses monitoring dan kontrol, sehingga dapat dikombinasikan dengan sensor dan kontroler. Dari hasil pengujian didapatkan bahwa ZigBee dapat terintegrasi dengan SWSL dan aplikasi monitoring sehingga data dapat dikirimkan sejauh 60 m dengan persentase paket terkirim utuh sebesar 21,4% pada kondisi lingkungan LOS pada RSSI sebesar -89 dBm. Ukuran maksimum paket data untuk sekali transmisi adalah 150 karakter atau 9,6 kilo byte. Pada kondisi NLOS jarak maksimum pengiriman hanya sampai pada 10 meter dengan maksimum RSSI -89 dBm. Kapasitas baterai memiliki daya tahan hingga 3 hari dan kesalahan pada sistem dapat terdeteksi dengan parameter terkirimnya email otomatis dan berubahnya indikator pada aplikasi.

Feasibility Analysis of Indonesian Cellular Operator Consolidation Design Ria Fistarini; Gunawan Wibisono
Journal of International Conference Proceedings (JICP) Vol 2, No 1 (2019): Proceedings of the 3rd International Conference of Project Management (ICPM) Bal
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jicp.v2i1.481

The high population and increasing growth in the penetration of the use of cellular telecommunications services in Indonesia have encouraged businesses to provide cellular telecommunications services in Indonesia. There are seven existing cellular operators who compete in attracting customers by providing services and prices that are considered to satisfy the customers. However, if seen from the operational performances and financial performances of cellular operators in Indonesia, there is an unbalanced and unfair competition between cellular operators. Consolidation between cellular operators is one of the solutions offered in overcoming the problems of Indonesia's cellular telecommunications industry. In this paper, the consolidation of the four largest cellular operators in Indonesia, namely Telkomsel, ISAT, XL and Three will be designed and analyzed by using the data of operational performance and financial performance of the cellular operators. The operational performance data used as parameters are the number of customers and Base Transceiver Station (BTS) of each cellular operator. While the financial performance data used are the data in the financial statements to calculate the financial ratios of cellular operators so that they can be used as parameters to measure the feasibility of a business company. This consolidated design scenario is designed by combining a maximum of two cellular operators. The results of the study indicate that consolidated design that illustrates the business feasibility and efficiency of the cellular telecommunications industry is consolidation between Telkomsel - Three and ISAT - XL. The feasibility analysis of the consolidation of cellular operators is expected to provide benefits and suggestion in balancing competition in the cellular industry and can improve the efficiency of the telecommunications industry.

LPWA Network Design and Implementation Strategy of Jakarta and Tangerang Area for Smart Meter Utilities Wahyu Krisyanto; Gunawan Wibisono
Journal of International Conference Proceedings (JICP) Vol 2, No 1 (2019): Proceedings of the 3rd International Conference of Project Management (ICPM) Bal
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jicp.v2i1.501

Internet of Things (IoT) is increasingly being implemented in major cities in the world, including in Indonesia. Currently, several cities in Indonesia have implemented smart city programs. Smart city implementation in Indonesia has not been supported by networks which are suitable for connectivity of equipment such as sensors. Sensors which are connected are still using cellular networks so they are not efficient in terms of power usage and bandwidth, where sensors only require small power and bandwidth. A network technology designed for the use of sensors is LPWA networks (Low Power Wide Area Networks) where, this network connects a large number of sensors with small power usage and narrow bandwidth. In this paper the authors try to design the LPWA network using LoRa technology for the purpose of using smart meters for electricity, water and gas in the DKI Jakarta and Tangerang areas with an approach to network performance parameters. The network parameters designed will be analyzed and adapted to the conditions of the region so that it has good network performance and capacity can meet the needs of smart meters in the region. The purpose of this paper is to produce a network design that fits the needs of smart meters which are expected to be a material consideration for operators in designing the LPWA network.

Penerapan Metode Monte-Carlo untuk Analisis Toleransi Perubahan Nilai Komponen Terhadap Kinerja Osilator Frekuensi 2,3 GHz Teguh Firmansyah; Gunawan Wibisono
Jurnal Rekayasa Elektrika Vol 12, No 3 (2016)
Publisher : Universitas Syiah Kuala

In telecommunications equipment, an oscillator has a function to generate a carrier signal. As the carrier signal, a high stability performance is required. The frequency shift caused by component tolerances. In this research, a Monte-Carlo method was used to analyze a component tolerance on the performance of the oscillator at a frequency 2.3 GHz. A simulation was performed by software Advance Design System (ADS). In this research, the iterations were carried out as many as 212 times with tolerance component values by 10%. The analyzed performance consists of a fundamental frequency shift, a phase noise, the value of power fundamental, and a harmonic power. Meanwhile, the oscillator has a structure of bias BJT common base-bias BFR183 with Vcc = 20 V, Vce = 8.2 V and Ic = 15 mA and a dielectric resonator as a resonator. The oscillator has a fundamental frequency 2.3 GHz, phase noise -135.6 dBc / Hz, power fundamental 10.8 dBm, and harmonic power -11.2 dBm. The simulation results showed that the oscillator has a good performance with a high degree of stability on a fundamental frequency by 73%, stability phase noise 100%, stability power fundamental 64%, and stability harmonic power 61%. This simulation has a confidence level of 95.4%, an error ± 3%, and the estimation accuracy 95%.

Penerapan Metode Monte-Carlo untuk Analisis Toleransi Perubahan Nilai Komponen Terhadap Kinerja Osilator Frekuensi 2,3 GHz Teguh Firmansyah; Gunawan Wibisono
Jurnal Rekayasa Elektrika Vol 12, No 3 (2016)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v12i3.5564

In telecommunications equipment, an oscillator has a function to generate a carrier signal. As the carrier signal, a high stability performance is required. The frequency shift caused by component tolerances. In this research, a Monte-Carlo method was used to analyze a component tolerance on the performance of the oscillator at a frequency 2.3 GHz. A simulation was performed by software Advance Design System (ADS). In this research, the iterations were carried out as many as 212 times with tolerance component values by 10%. The analyzed performance consists of a fundamental frequency shift, a phase noise, the value of power fundamental, and a harmonic power. Meanwhile, the oscillator has a structure of bias BJT common base-bias BFR183 with Vcc = 20 V, Vce = 8.2 V and Ic = 15 mA and a dielectric resonator as a resonator. The oscillator has a fundamental frequency 2.3 GHz, phase noise -135.6 dBc / Hz, power fundamental 10.8 dBm, and harmonic power -11.2 dBm. The simulation results showed that the oscillator has a good performance with a high degree of stability on a fundamental frequency by 73%, stability phase noise 100%, stability power fundamental 64%, and stability harmonic power 61%. This simulation has a confidence level of 95.4%, an error ± 3%, and the estimation accuracy 95%.

Perancangan Quadband BPF dengan Komponen Lumpeduntuk Sistem m-BWA Gunawan Wibisono; Daniel Simanjuntak; Taufiq Alif Kurniawan
Jurnal Elektronika dan Telekomunikasi Vol. 13 No. 2 (2013)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v13.47-54

Ada banyak teknologi mobile broadband wireless access (m-BWA) yang saat ini digunakan, agar bisa mencakup seluruh teknologi m-BWA yang ada dalam sebuah perangkat maka diperlukan teknologi multiband . Salah satu komponen penting yang mendukung perkembangan teknologi m-BWA adalah bandpass filter (BPF), yang berfungsi untuk memilah-milah dan mengisolasi band yang spesifik dari interferensi pada transceiver radio frequency (RF). Pada penelitian ini akan dirancang quadband BPF yang beroperasi pada frekuensi tengah 950 MHz dan 1,85 GHz untuk aplikasi GSM, 2,35 GHz untuk aplikasi WiMAX, dan 2,65 GHz untuk aplikasi LTE secara simultan. Rangkaian quadband BPF dibangun dan dikembangkan dari konsep dualband BPF dengan menambahkan sejumlah cross coupling pada inductive coupling BPF tersebut untuk menghasilkan zero pada frekuensi tertentu yang diharapkan menggunakan komponen lumped. BPF yang dirancang memiliki spesifikasi, input return loss (S11) < -10 dB, insertion loss (S21) > -3 dB, dan voltage standing wave ratio (VSWR) antara 1 – 2, dan group delay kurang dari 10 ns. Perancangan dilakukan menggunakan perangkat lunak Advance Design System (ADS) dan kemudian difabrikasi berbasis printed circuit board (PCB). Hasil simulasi BPF menunjukkan kinerja quadband BPF memenuhi kriteria perancangan sedangkan hasil fabrikasi mengalami pergeseran.

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