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Sistem Pergerakan Robot Kiper Beroda Menggunakan Metode Wall Follower Berbasis Image Processing
Full text linkOne of Indonesian Robot Contest divisions is the Indonesia wheeled soccer robot contest. There are three players called the striker, defense and goalkeeper robot, which is drived by wheels that controlled based on three aferomentioned positions. This study aims build the goalkeeper robot equipped with image processing to detect the ball using a camera sensor that installed in the the robot system. The Image processing contructed using the python programming language with OpenCV library. The results of image processing are used as input data that controlled by Arduino Mega 2560, which is connected serially to the PC's USB port. The results shows the maximum linear velocity that can be achieved is 1.59 m/s. Furthermore, the efficiency ratio of analysis data to the actual distance is 86.77
Peningkatan Gain dengan Teknik Multilayer Parasitic pada Perancangan Antena Mikrostrip Persegi Panjang 2,4 GHz
Full text linkMicrostrip patch antennas offer low profile and low cost fabrication advantages but limited gain and bandwidth. Some methods and techniques have been proposed and developed to improve gain of microstrip antenna, and one of them is multilayer parasitic technique. In this paper, the design and realization of rectangular patch microstrip antenna with multilayer parasitic for enhancing antenna gain that operates at frequency of 2.4 GHz is presented. The designed antenna consists of one rectangular patch as the main antenna on the first layer and the 2x2 configuration of rectangular patches on the second and third layers as the parasitic substrate. The simulation results show that the single element antenna has a gain of 3.224 dB and increases to 8.593 dB by using the parasitic multilayer antenna. The antenna design was then fabricated using an Epoxy FR4 substrate with a dielectric constant of 4.65 and a thickness of 1.6 mm. The fabricated multilayer parasitic microstrip antenna has dimension of 80 mm x 90 mm x 34.8 mm. The measurement results show that the VSWR value is 1,284 and the return loss is -18,091 dB at the center frequency of 2,442 GHz. The gain of the multilayer parasitic microstrip antenna measurement is 9.1 dB. The operation frequency range is 2.32 - 2.565 GHz at VSWR < 2, the bandwidth of 245 MHz is achieved and unidirectional radiation patterns are obtained
Desain dan Implementasi Visual Object Tracking Menggunakan Pan and Tilt Vision System
Full text linkObject tracking is a technique for detecting and following the moving object. It can be used to helping security officers to monitor the room that has a large monitoring working area. The aim of research is to design the visual system of object tracking by using pan and tilt vision system. The orientation of camera can move in vertically and horizontally path. Visualization program for this project is consist of motion detection, edge detection and center of mass. The detected object position can be used for controlling the pan and tilt at mechanical system which is mounted on the camera to track the moving object. The results of research show the design of object tracking can detecting and following walking human with an ideal distance of 6 meters and directional angular shift is 5 degrees on the visual resolution of 360 × 240 pixel
Perancangan, Implementasi Monitoring dan Kontrol Alat Pemanggang Kopi
Full text linkCoffee roasting is the process of removing the water that is exist in the coffee beans. Roasted coffee beans will change weight and give a nice aroma and taste. The longer the coffee beans are roasted, the color of the coffee beans will continue getting darker blackish brown. The roasting level of coffee beans is determined from the change in color of coffee beans starting from light, medium and dark. Roasting coffee beans that develop on a home industry scale is still manual, that is, using more human labor in its operation. Therefore, this research will be made an automatic coffee roasting machine using a heater to heating the coffee beans, a DC motor to stir roasted coffee beans and a webcam to monitor changes in the color of coffee beans when roasted. Components of heating elements and motors controlled by Arduino Mega 2560 microcontroller while the webcam is connected with Raspberry Pi 3. As a component of performance that has been met with sensors as data collectors, microcontrollers as data processors and actuators as control systems. In this researh 3D modeling for a roasting container is done using SketchUp 3D design software. The results of the coffee roasting machine can meet the requirements of the system designed in accordance with the roasting level desired by the user and the thermocoupel give a better result in reading the temperature parameter compared to infrared thermometer. In 4,5 minutes the difference reading in temperature reach 27,50C between two sensors
Pengaruh Bahan Pengisi Cangkang Kelapa Sawit Komposit-Silicone Rubber Dalam Permulaan Pemohonan Listrik
Full text linkInception of electrical treeing can irreversibly deteriorate the insulation of polymeric power cables leading to a complete failure and initial process of degradation in polymer insulation due to a void that experiences high electric field stress in the material. This paper present will study filler’s influence on inception of electrical treeing growth in silicone rubber – oil palm endokaprium composite. The observed data is inception voltage and time phenomena in two types of test sample, that is " with filler " and " without filler ". Sample of filler consisted of silicone rubber and oil palm endokaprium composite for oil palm endokaprium weight is 0.1 grams and weight silicone rubber 3.9 gram. While the sample without filler is only silicone rubber . It is obtained that the tree inception voltages dan time for “with” dan “without filler” specimens are 8 kV / 182 seconds and 7,5 kV / 137 seconds, respectivelly.. It is considered that “filler” acted as a barrier for tree inception. We throught that “filler” enhanced dielectric strength of silicone rubber and oil palm endokaprium by disturbing high electric field stress, result in higher tree inception voltage and longer tree inception time
Studi Penyusunan Database Infrastruktur Transportasi Perhubungan Darat Kabupaten Kayong Utara
Full text linkAbstract Initial steps to develop transport infrastructure is to conduct an inventory of transportation. This study is an effort to map the existing conditions of transportation in North Kayong districts, especially in the field of land transportation. This study requires data transportation land transportation infrastructure are derived from relevant agencies and field surveys. This study resulted in a database of transport infrastructure in the field of land transportation Kayong northern district can be implemented with web GIS applications. this can provide mapping information of transportation infrastructure land transportation fields scattered throughout the northern district Kayong Keywords Database, Transport Infrastructur
Simulasi Pengendali Filter Aktif Sebagai Upaya Memperbaiki Kualitas Daya Listrik Di Laboratorium Teknik Listrik Politeknik Negeri Pontianak
Full text linkAbstract Non linier loads are widely used in Electrical Engineering Laboratories of State Polytechnic of Pontianak. The measurement using Power Quality meter produces the voltage harmonic level which meets the Standard of IEEE 519 - 1992, that is, less than 5 %. However, the current harmonic level measured are varies for each phase where the lowest harmonic level is 6.01% and the highest one is 59 %. These do not meet the harmonic standard of IEEE 519-1992. In order to solve the problem, it has been conducted a simulation using shunt active filter based on the theory proposed by Akagi. The result of simulation conducted to the loads shows a decrease of harmonic current level of 2.24% in phase R, 1.66% in the S phase and 1.91% in phase T. The current's THD occurred from the simulation results has met the standard of IEEE 519-1992. Keywords Non linier, Harmonic, active filter, TH
Studi Perbandingan Metode Wavelet Dalam Speech Recognition Pada Sistem Akses Personel
Full text linkPenelitian tentang speech recognition terus berkembang terkait identifikasi personel. Pada penelitian ini, kami melakukan studi perbandingan metode wavelet dalam speech recognition. Pada penelitian ini teknologi speech recognition berbasiskan wavelett dan neuro fuzzy. Beberapa parameter yang digunakan dalam penelitian ini adalah sampel suara dengan frekuensi sampling 8000 Hz dan 8 bit per sampel dengan filter wavelet High Pass Filter (HPF). Level dekomposisi menggunakan wavelet daubechies, symlet dan coiflet. Nilai thereshold filter wavelet identifikasi personel 57,72%, False Rejection Rate (FRR) 40% dan running time 1,97 detik. Untuk nilai thereshold identifikasi personel 100%, False Rejection Rate (FRR) 0% dan running time 5,43 detik didapatkan pada level dekomposisi 5 pada wavelet db1. Identifikasi tipe wavelet dari yang terbaik adalah coiflet, symlet dan daubechies karena coif2 level 2 memberikan identifikasi 60,00%, FRR 40,00% dan running time 1,97 deti
Sistem Informasi Manajemen Jalan Di Kota Ketapang
Full text linkAbstract Ketapang city as the district capital ketapan. Ketapang city is a growing city needs to be supported by systems that better traffic management. This study aimed to develop a management information system roads in the city of Ketapang. This study requires data traffic flow and road obtained from relevant agencies and field surveys. This study resulted in a system that is capable of handling data as well as the intersection of the road and display it in the form of a map. This system can help users in analyzing roads and signalized intersection or not. system can also help users filter the data that is based on certain criteria Keywords Traffic management, Roads, Intersection
Pengaruh Temperatur Terhadap Kapasitas Daya Panel Surya (Studi Kasus: Pontianak)
Full text linkAbstract Panel surya pada umumnya terbuat dari bahan yang mampu menyerap energi foton dari radiasi matahari dan mengubahnya menjadi energi listrik. Energi panas dari radiasi matahari juga ikut terserap sehingga menaikkan temperatur sel-sel surya. Temperatur lingkungan sekitar panel surya juga memiliki kontribusi dalam perubahan temperatur pada sel-sel surya. Akibat kenaikan temperatur, maka daya listrik yang diproduksi oleh panel surya menjadi berkurang. Untuk kondisi Pontianak, terjadi pengurangan daya listrik sebesar -0.7113W/C jika menggunakan panel surya jenis monokristalin. Keywords daya listrik, panel surya, radiasi matahari, temperatur