Kajian dan Implementasi Real TIME Operating System pada Single Board Computer Berbasis Arm

Operating System is an important software in computer system. For personal and office use the operating system is sufficient. However, to critical mission applications such as nuclear power plants and braking system on the car (auto braking system) which need a high level of reliability, it requires operating system which operates in real time. The study aims to assess the implementation of the Linux-based operating system on a Single Board Computer (SBC) ARM-based, namely Pandaboard ES with the Dual-core ARM Cortex-A9, TI OMAP 4460 type. Research was conducted by the method of implementation of the General Purpose OS Ubuntu 12:04 OMAP4-armhf-RTOS and Linux 3.4.0-rt17 + on PandaBoard ES. Then research compared the latency value of each OS on no-load and with full-load condition. The results obtained show the maximum latency value of RTOS on full load condition is at 45 uS, much smaller than the maximum value of GPOS at full-load at 17.712 uS. The lower value of latency demontrates that the RTOS has ability to run the process in a certain period of time much better than the GPOS

Kajian dan Implementasi ... (Wiedjaja A; dkk) 91 KAJIAN DAN IMPLEMENTASI RE AL TIME OPERATING SYSTEM PADA SINGLE BOARD COMP UTER BERBASIS ARM

Operating System is an important software in computer system. For personal and office use the operating system is sufficient. However, to critical miss ion applications such as nuclear power plants and braking system on the car (auto brak ing system) which need a high level of reliability, it requires operating system which operates in real time. The study aims to assess the implementation of the Linux-based operating system on a Single Board Computer (SBC) ARM-based, namely Pandaboard ES with the Dual-core ARM Cortex-A9, TI OMAP 4460 type. Research was conducted by the method of implementation of the General Purpose OS Ubuntu 12:04 OMAP4-armhf-RTOS and Linux 3.4.0-rt17 + on PandaBoard ES. Then research compared the latency value of each OS on no-load and with full-load condition. The results obtained show the maximum latency value of RTOS on full load condition is at 45 uS, much smaller than the maximum value of GPOS at full-load at 17.712 uS. The lower value of latency demontrates that the RTOS has ability to run the process in a certain period of time much better than the GPOS

PEMANTAUAN TINGGI AIR OTOMATIS UNTUK BENDUNGAN KATULAMPA

Tujuan dari penelitian ini ialah memantau ketinggian permukaan air pada bendung Katulampa. Alat penelitian ini menggunakan Arduino sebagai modul utama dengan mikrokontroler ATmega 328, sensor ultrasonik PING sebagai pendeteksi ketinggian air, dan GSM modul untuk media komunikasi data tinggi air dengan format pesan singkat (SMS). Perangkat berjalan dengan platform cross compiler Qt Programming, data yang diperolah disimpan ke database MySql WorkBench. Data yang diperoleh berdasarkan percobaan pada permukaan datar, permukaan air tenang, permukaan air beriak dan percobaan pada bendung katulampa telah sesuai dengan tujuan penelitian dengan akurasi ketepatan rata-rata sebesar 99.79% dengan waktu 28.95 detik setiap satu siklus. Hasil data penelitian dari sistem ini dapat digunakan untuk memantau ketinggian air pada bendungan Katulampa

Solar Panel System for Street Light Using Maximum Power Point Tracking (MPPT) Technique

Solar energy is one form of the renewable energy which is very abundant in regions close to the equator. One application of solar energy is for street light. This research focuses on using the maximum power point tracking technique (MPPT), particularly the perturb and observe (P&O) algorithm, to charge battery for street light system. The proposed charger circuit can achieve 20.73% higher power efficiency compared to that of non-MPPT charger. We also develop the LED driver circuit for the system which can achieve power efficiency up to 91.9% at a current of 1.06 A. The proposed street lightning system can be implemented with a relatively low cost for public areas

Solar Panel System for Street Light Using Maximum Power Point Tracking (MPPT) Technique

Solar energy is one form of the renewable energy which is very abundant in regions close to the equator. One application of solar energy is for street light. This research focuses on using the maximum power point tracking technique (MPPT), particularly the perturb and observe (P&O) algorithm, to charge battery for street light system. The proposed charger circuit can achieve 20.73% higher power efficiency compared to that of non-MPPT charger. We also develop the LED driver circuit for the system which can achieve power efficiency up to 91.9% at a current of 1.06 A. The proposed street lightning system can be implemented with a relatively low cost for public areas

Kajian dan Implementasi Real Time Operating System pada Single Board Computer Berbasis Arm

Operating System is an important software in computer system. For personal and office use the operating system is sufficient. However, to critical mission applications such as nuclear power plants and braking system on the car (auto braking system) which need a high level of reliability, it requires operating system which operates in real time. The study aims to assess the implementation of the Linux-based operating system on a Single Board Computer (SBC) ARM-based, namely Pandaboard ES with the Dual-core ARM Cortex-A9, TI OMAP 4460 type. Research was conducted by the method of implementation of the General Purpose OS Ubuntu 12:04 OMAP4-armhf-RTOS and Linux 3.4.0-rt17 + on PandaBoard ES. Then research compared the latency value of each OS on no-load and with full-load condition. The results obtained show the maximum latency value of RTOS on full load condition is at 45 uS, much smaller than the maximum value of GPOS at full-load at 17.712 uS. The lower value of latency demontrates that the RTOS has ability to run the process in a certain period of time much better than the GPOS