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Perancangan Simple Network Management Protocol (SNMP) Agent Simulator Berbasis Open Source Pada Jaringan World Wide InteroperabilityFor Microwave Access (WiMAX)
Get PDFNetwork Management System (NMS) is one of network technologies which is required by Interoperability for Microwave Access (WiMAX) for monitoring, maintaining and managing. In managing the network, information transfer process that is occurred can be implemented by Simple Network Management Protocol (SNMP). This research involves designing and implementing an SNMP agent simulator on Personal Computer (PC) that is implemented as Base Station (BS) or Subscriber Station (SS). Information exchange of NMS in WiMAX network utilizes Management Information Base (MIB) IEEE 802.16f standard The resulting SNMP agent simulator is tested on the OpenNMS application using a database that can be modified from a website. Keywords: WiMAX, MIB, Network Management System (NMS), SNMP, OpenNM
Identifikasi Panas Objek Menggunakan Citra Termal
Get PDFInfrared photography is a technique in the field of photography to record the light that can not be seen directly with eyes. Therefore, it will need filter that can filter almost every light spectrum. The filter also works to pass infrared into camera if sensor is sensitive to infrared. If the technique is used then infrared photo could be black/white that has good contrast or false color photo such as green fresh leaf into white color. The result, as filter is using film negative and Hoya filter that installed to camera. Finepix A400 and Nikon D40X are used as the digital camera. Four kind filters that used are b/w negative, color negative printed and unprinted. Each of filters was burned by using high sunshine intensity from the lowest to the highest. R72 and RM90 are used or Hoya filters. The result from all filters will be compared. As the result from this research, then we got similarity from each digital camera that using film negative filter with print and Hoya R72 filters.
Keywords: Infrared, film negative, thermal image
Rancang Bangun Sistem Pemantau Kondisi Ketinggian Air Melalui SMS Berbasis Mikrokontroler AVR Seri Atmega 8535
Get PDFMemperpanjang Kecerahan Cahaya Lampu TL (fluorescent) Dengan Menggunakan Metode Penyalaan Switching
Get PDFThe tactic, that generally people to make tube lamp (fluorescent) brightly shines on area that has poor voltage regulation at peak load time, is applied of bigger ballast transformer than its rating. Unfortunately, the side effect results life of lamp to be shorter marked by falling of its brightness. At this time, fluorescent lamp applying as lighting is turned on day-and-night 24/7. It happens on home that light of sun can not enter its rooms. Turning on fluorescent lamp using switching method gives more benefit that is : it can be brighten under low voltage until 120 V, further more the life of fluorescent lamp is longer than ballast method when it turn on continuously. Fluorescent lamp rating 10 watt that is using 10 watt ballast transformer made in Guang Zhow only shines 5 days when it work day-and-night, on the other hand 10 watt fluorescent lamp from Phillips has durability as its long-life but its brightness decreases signed by increasing resistant of LDR from 2200 ohm to 2600 ohm after turned on along 60 days. Fluorescent lamp 20 watt made in Matsui and ballast transformer 20 watt made in Sinar have superiority as well as switching method that is the value of LDR resistant not change at 2000 ohm, although it had worked along 60 days without turned off
Pengaturan Motor Induksi Meggunakan Chopper Pada Rotor Berbasis Komputer
Get PDFUsually the speed control used the electronic instruments, for example it is based on a microcontroler. For easy controlling, microcontroller is connected to computer as a bridge between user and the motor that is to be controlled. The speed of induction motor for wound rotor type is adjustable by using the chopper that is connectedto its rotor circuit. With the use of the power transistor as a chopper, so switching can be manipulated and easy to control. The control instrument is made by using microcontroller that based on computer. The speed control used a chopper circuit results in the wider speed control depending on the duty cycle of the chopper. While by using the conventional external resistor just results in the speed control area that its condition depends on the variable resistors used
Pengaruh Sambaran Petir Terhadap Sistem Proteksi Pada Tower BTS (Base Transceiver Station)
Get PDFBTS (Base Transceiver Station) is a high building that vulnerable to lightning strike. Once the BTS has been struck by lightning, an overcurrent will flow to the system caused by a lightning surge current. This surge current then distributed to the line that connected to the grounding system through a bonding bar i.e. power and radio equipment line. A surge protector devices (SPDs) will be installed in order to protect power and radio equipment line from the damage caused by lightning surge current. This reseach will determine the current capacity of the SPDs by simulating the system. A type of SPDs that will be use in this research is an arrester ZnO
