Jurnal Rekayasa Elektrika
Not a member yet
345 research outputs found
Sort by
Novel Area Optimization in FPGA Implementation Using Efficient VHDL Code
Full text linkA new novel method for area efficiency in FPGA implementation is presented. The method is realized through flexibility and wide capability of VHDL coding. This method exposes the arithmetic operations such as addition, subtraction and others. The design technique aim to reduce occupies area for multi stages circuits by selecting suitable range of all value involved in every step of calculations. Conventional and efficient VHDL coding methods are presented and the synthesis result is compared. The VHDL code which limits range of integer values is occupies less area than the one which is not. This VHDL coding method is suitable for multi stage circuits
Prototype Robot Pemadam Api Beroda Menggunakan Teknik Navigasi Wall Follower
Full text linkFire Robot serves to detect and extinguish the fire. The robot is controlled by the microcontroller ATMEGA8535 automatically. This robot contains of several sensors, such as 5 sets of ping parallax as a robot navigator, a set UVTron equipped with fire-detecting driver, DC motor driver L298 with two DC servo motors. The robot was developed from a prototype that has been studied previously with the addition on the hardware side of the sound activation and two sets of line detector. The robot will active if it receives input from the sound activation unit and will start to find the fire with search the wall navigation techniques. The line sensor was used as a door and home detector and circle the fire area.To extinguish the fire, this robot uses a fan driven by a BD139 transistor circuit. The overall test results show that the robot can detect the presence of the fire in each room. The robot also can find the fire and extinguish it within 1 minute
Analisis Propagasi Gelombang Radio Menggunakan DLink 624 pada Jurusan Teknik Elektro Universitas Syiah Kuala
Full text linkTelecommunication technology nowadays tries to implement Personal Communication System (PCS) which has Personal Mobility (PM) and Terminal Mobility (TM). PCS can be define as radio technology that uses Radio Frequency (RF) as a transmission medium, which is small and light, and can be implemented indoor and outdoor. One equipment that implements this technology is called D-Link. The application of D-Link is to communicate among users either indoor or outdoor. Research methodology includes deciding the parameters and calculating the path loss between base station and portable station at the second floor of Electrical Engineering Department Syiah Kuala University. The final result was that the communication between the base station and portable station in the rooms at the second floor could exist but the process is rather slow and can experience discontinuity. Those were happenbecause the receivers power was below the threshold of the portable station level, i.e.. -40 dB
Perencanaan Kebutuhan Distribusi Sekunder Perumahan RSS Manulai II
Full text linkPlanning of secondary distribution for residence is important that should consider the load, plan the distribution network, choose the conductor and determine the transformer capacity needed. In this planning, Manulai II Resident is counted as simple household that the transformer is divided into two different areas A and B. Twisted Cable NFA2X size 3x70mm; 3x35mm; 4x25mm; and 2x10mm are used. The research shows that losses and voltage drop are still in tolerance limit and the capacity needed for area A is 50 kVA and 25 kVA for area B
Analisis Kontingensi Sistem Tenaga Listrik dengan Metode Bounding
Full text linkThe bounding method is one of the contingency analysis method for detecting branch flow violations. Three subnetworks in the bounding method namely N1, N2, and N3 will give information regarding those subnetworks that may not go overload and those that may. This research compared the results from contingency analysis that has been done to the 30 bus system using the bounding method and software PowerWorld Simulator 15 GSO. The result by using the bounding method is 12 lines can go overload for the outage of line 1-2. As well as for the outage of line 1-3 and the outage of line 2-5. Meanwhile, the output of using PowerWorld Simulator 15 GSO with DC power flow method, there are three overloads exist for the outage of line 1-2, three overloads exist for the outage of line 1-3, and five overloads exist for the outage of line 2-5. The overload lines are included in the group of lines that can overload from bounding result