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Perancangan dan Analisa Kinerja Fiber to the Building (FTTB) untuk Mendukung Smart Building di Daerah Urban
Full text linkThe development of digital technology makes it easy for humans to do activities, including compliance with the requirement of voice, data, and video communication in office buildings. Infrastructures are a primary consideration for a reliable connection, large-capacity, and stable communication lines. Recently, Fiber-optic communication systems are now the backbone of information signal delivery technology. This paper proposes a design of optical fiber transmission media for deployment in urban office buildings. It has been called fiber to the building (FTTB), which uses a fiber optic communication system to support the availability of multimedia network in an office area. A typical office building in an urban area has a multilevel structure that is used by various companies with multimedia network access services to support business activities. This study considers XGPON technology as a fiber optic-based broadband access technology that is deemed appropriate to the needs of the use of a multimedia network. The design begins with conducting a data collection survey. The next is the chosen device components based on the estimated distribution of the number of users. There are three parameters will be calculated include Power Link Budget (PLB), Rise Time Budget (RTB), and Bit Error Rate (BER), to determine the design feasibility. Based on PLB, RTB, and BER data, the proposed fiber to the building (FTTB) can meet the parameters to be achieved in the design, namely PLB of -27,24 dBm for downstream and -11,68 dBm for upstream, the value of is 0,049 ns, and value of BER is 0,186 x 10-1085. The design of FTTB can meet the requirement of users with a bandwidth of 9014,4 Mbps for 1200 users
Perbandingan Perolehan Daya Solar Panel Monocrystalline Terhadap Solar Panel Polycrystalline
Full text linkThe availability of two types of solar panels that are common in the market namely monocrystalline and polycrystalline types cause confusion in the selection so that many solar panel users are questioning the differences of these two types of solar panel. This study produced a data logger system using Arduino Uno R3 to control voltage, current and temperature sensors for logging data that stores power measurement data from monocrystalline and polycrystalline solar panel in a micro SD. After it we can manage data to compare power produced between two types the solar panel. From the results of testing this data logger system it can be seen that monocrystalline solar panel are 9.18% better on power produced than polycrystalline when the maximum power conversion is generated
ANALISA SIFAT MEKANIK PENGARUH VARIASI PERENDAMAN DAN PENEKANAN PADA KOMPOSIT BERBAHAN SERAT BUNDUNG
Full text linkThis study aims to determine the effect of mechanical properties of impact, bending and tensile of bundle fiber composites with 5% NaOH variation of immersion time 0.5 hours, 1 hour and 1.5 hours. Then the blending and casting process is carried out to form a composite material with 20% fiber and 80% resin binder with a catalyst content of 1% and pressurized with press variations of 5 kg, 10 kg and 15 kg. The results of the blending and casting process are made according to the testing standard and then testing the mechanical properties. Impact, bending and tensile strength test results showed that immersion of 0.5 hours with 15 Kg concentration produced the highest value, namely Impact strength 94.89 J / mm2, bending strength 17.77 N / mm2 and tensile strength 27 N / mm2. Whereas the fracture form of the composite is the binding and fiber breaking evenly at the same point and the fiber is not pulled from the metric
Klasterisasi Kerusakan Bearing Motor Induksi 3 Fasa Menggunakan Metode Transformasi Wavelet Diskrit dan K-Medoids
Full text linkThe 3 phase induction motor is a reliable and strong motor also has cheap price. However induction motor are also vulnerable, from the result of survey conducted by Electric Power Research Institute (EPRI), there are 41% cases of damage occur in the bearing caused by working environment condition, bearing age, and several other factors. Bearing fault is not easily to identified, with applying the data extraction method using the Discrete Wavelet Transform (DWT) and the K-Medoids clustering method will facilitate the identification process. The extraction method will pass the data in the form of current signals into the digital filter (Low Pass Filter and High Pass Filter) to be mapped into the region of frequency and time simultaneously, and clustering method will group data based on certain characteristics. Based on the clustering tests that have been done on the 3 phase induction motor current signal data with 3 bearing conditions, the Discrete Wavelet Transformation with mother wavelet bior1.1 decomposition level 2 and K-Medoids produce an accuracy rate of 86.8%
Pengenalan Pola Sidik Jari Menggunakan Multi-Class Support Vector Machine
Full text linkIn exposing criminal acts, it is necessary to have a concrete piece of evidence, one of which is by using the role of fingerprints. Police fingerprint identification uses supporting tools such as the INAFIS Portable System (IPS). The process of reading fingerprints using this IPS tool, usually decreases image quality which causes obstacles in reading or analyzing fingerprint patterns. Nowadays digital image processing techniques have been widely used to conduct analysis and pattern recognition. This of course, can be used to perform fingerprint pattern recognition based on texture characteristics. In this study, a system was created that was able to recognize the types of fingerprint patterns as a form of digital technology development (image processing). In this analysis system research, the Gray Level Co-Occurence Matrix (GLCM) method is used by utilizing feature feature extraction by paying attention to the pixel relationship and Multi-Class Support Vector Machine (Multi-SVM) as an introduction to fingerprint pattern types. The data used in this study were fingerprint images of scanning results from IPS tools in the form of arch, left loop, plain whorl, right loop, and twinted loop patterns. Testing this analysis system produces varying degrees of success. The average success rate on this system uses training data which is 91.6% with the highest percentage success rate of 100% in the type of arch, left loop, and plain whorl pattern. While the average success using test data is 66% with the highest percentage success rate of 100% in the arch pattern type
SISTEM KENDALI KEKERUHAN DAN pH AIR KOLAM BUDIDAYA IKAN NILA
Full text linkThis study aims to make a tool that can monitor the condition of the pH level and water turbidity in fish ponds so that fish growth can be maximized. This fish pond has a control system that can be controlled automatically. The purpose of using this control is to get maximum results and to save water use in fish ponds This tool has two sensors consisting of a TDS-10 sensor which functions to detect the turbidity level of water in fish ponds and a pH sensor which functions to detect the pH level of the water in the fish pond. Comparison with previous research, the application of fish ponds with a size of 3 x 4 meters so that observations about how the tools work and the success rate of the tools can be observed more intensively. In addition, the ESP8266 wifi module is supported as a collaboration monitoring center without the need to come to the location directly Based on the test results of the TDS-10 sensor and pH sensor that have been carried out in the fish pond, the test results show good performance with the proportion of detection error of the TDS-10 sensor (4.8 NTU) to the set point (5 NTU) is 4%
Radio Direction Finder pada HF Band sebagai Elemen dari Passive Radar
Full text linkA Radio detection and ranging (radar) is used to detect and track objects in the air and on land, one type of the radar that is known is a passive radar. The radio direction finder (RDF) as an element of a passive radar is used to determine the direction angle, based on a radio waves that emitted by an object. The purpose of this study is to produce a RDF that works on HF bands as passive radar elements. In this study a RDF has been produced, which consists: a receive antenna in the form of a dipole λ/8 and a yagi 5 elements with horizontal polarization, a tuning circuit, an AM signal detector, an audio amplifier, and equipped with a level signal display in the form of a S meter and a loudspeaker. The test results for outside and inside the room at a certain time, the RDF can detect the angle of direction of horizontal plane of an object or AM transmitter from 0° to 360° in the frequency range between 4.02 to 10.76 MHz. The results of detecting the angle of direction of an object or a transmitting radio waves in the HF band, in the form of a signal level are then plotted on the polar diagram of the horizontal plane, and the sound can be heard through the loudspeaker. Furthermore, the results of this study can be used for the development of a RDF independently, and its implementation in the passive radar
Prototype Pengontrolan Lampu Dengan Menggunakan Ponsel Pintar Android Via Wifi Berbasis Mikrokontroler
No full textEveryone must have a rush outside the house, sometimes in a hurry even forget to turn off and turn on the light in the house during the morning or night. At times like this, of course, that makes people lazy to go back to the house to turn off the light that causes electricity waste and make time efficient to turn on the light. In this study a prototype of lighting control will be made where observations have been made about the prototype need. Then look for literature related to light control prototypes. The prototype method uses the blynk application as a light controller connected to the internet with the media via wifi. ESP-01 as a microcontroller processes commands from a smart phone which then results in controlling both the off and on the lights as well as the receiver and transmitter in the lighting control system. Thyristor switch module as an electrical switch instead of a manual switch at home to turn on or turn off the light through commands from the microcontroller. This prototype is very easy to use because through a prototype smart phone can be controlled, so this is a solution for humans to turn on or turn off the light by utilizing wifi in the house. From the experiments that have been carried out the average speed of the prototype tool receives an order from open source blynk application in 0.28 second
SMART IRRIGATION SYSTEM BERBASIS ARDUINO
Full text linkBased on the Batam City government program to increase the food security of Batam City so as not to depend on other regions where Batam City has been fulfilling its basic needs such as rice, fruit and vegetables, import from West Sumatra and North Sumatra, the success of its food security program will specifically choose an island to develop agriculture because each island in the Batam Islands is not suitable to be designed as an industrial area so that the specificity of an island developed for agriculture is needed. To participate in supporting the Batam City government program in developing food security in agriculture, a good irrigation or irrigation system is needed. The problem of irrigation water distribution occurs when the amount of water available is smaller than the needs of irrigation water, especially during the dry season. So that efficient use of irrigation water is needed. The uneven distribution of water due to poor management of irrigation water sources will greatly affect the success of the production of an agricultural product. to build a smart irrigation system using soil moiture sensors and Arudino-based water level sensors, it can be seen that the prototype system can function because the components used work in the order, and the results are obtained when the sensor water level is greater than 600 then the LED lights live red and buzzer will sound loudly indicating water tank below the level, when the value of soil moisture sensor is greater or equal to 700 then the red LED light is on and the buzzer sounds low indicating dray soil conditions and the water pump / selenoid valve will be on and green LED lights will live, when the value of soil moisture sensor is smaller 700 then the live yellow LED lights show moist soil and water pump / selenoid valve conditions, and when the value of soil moisture sensor is smaller than 300 then the blue LED light will live shows Soggy soil and water pump / selenoid valve off, the prototype of the smart irrigation system has the same design as it has been made
Klasifikasi Jenis Buah dan Sayuran Menggunakan SVM Dengan Fitur Saliency-HOG dan Color Moments
Full text linkFruit is part of a plant that comes from the flower or pistil of the plant and usually has seeds. Meanwhile, vegetables are leaves, legumes, or seeds that can be cooked. Fruits and vegetables have many variants that can be distinguished based on color, shape, and texture. The Saliency-HOG feature and Color moments were used in this study to extract shapes and colors features in fruit and vegetable images. In this study, the Support Vector Machine (SVM) method was used to classify the types of fruit and vegetables. The dataset used in this study is a public dataset consisting of 114 images of fruit and vegetables. Each type of fruit and vegetable contains 100 images consisting of 70 images as training data and 30 images as testing data. There are 4 saliency features used in the testing phase, namely Region Contrast (RC), Frequency-tuned (FT), Histogram Contrast (HC), and Spectral Residual (SR). Based on the test results, the Saliency-HOG and Color Moments features were able to provide good results with the best precision, recall, and accuracy being 98.57%, 98.55%, and 99.120%, respectively