E-Journal Politeknik Negeri Cilacap
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Sistem Informasi Akomodasi Pariwisata Nusa Dua Berbasis Android
Get PDFThere are lots of Nusa Dua tourism accommodation and it is interesting to be visited by domestic and foreign tourists. The author considers the need for a special portal to provide information about geography Nusa Dua tourism accommodation, in addition to this, it can also increase the interest of foreign tourists to travel with complete information without worrying. An android-based Nusa Dua tourism accommodation information system was created to provide broad information about the availability of the accommodation places in Nusa Dua. This geography information system was built using the waterfall method starting with the needs analysis, system design, coding, and testing stages. The information system built can run and function well in accordance with the needs of tourists, where the system can support tourism activities. The system is able to provide information in the form of writing, pictures and payments to increase the interest of foreign tourists visiting, especially in Nusa Dua
Transformasi Ruang 3D Pada Animasi Expresi Wajah Avatar Berbasis Radial Basis Function
Get PDFOne technique for forming facial animations on avatars is by reusing existing animations, either from other avatar animations or animations from motion data obtained using facial motion capture. This research focuses on the transformation of 3D space for the formation of facial animations on avatars in games or animated films. The transformation is carried out from motion capture data into a 3D avatar face model with 3 face models, namely the human face model, the swan face model and the anoman face model. The motion capture data is transferred according to the feature points of the face model. The results obtained by the facial model feature points will have animations that match the motion capture data. Of the 3 target face models used, the animation results with registration on the human face model have an average standard deviation is 0,0510. The goose face model has an average standard deviation is 0.0034 and the anoman face model has an average standard deviation is 0,0024. With this technique, it is hoped that the formation of facial expression animation on Avatar can be done more quickly because of the reuse of facial motion capture data
Scalable and Socially Inspired Blockchain Architecture for the Organic Food Supply Chain
Get PDFOrganic food supply chains are faced with heavy pressure to increase their output to meet the global demand. This confronts various challenges including scandals, adulteration, contamination, and growing regulations. As an alternative to third-party certification, Participatory Guarantee Systems (PGS) are popular community-based quality assurance system that integrates the social verification context into the organic certification process. As PGS is a local community-driven system, it has inherent limitations in the scalability of reaching consensus as the size of participants increases. The organic food industry has the potential to grow globally therefore, an appropriate scalable consensus mechanism is needed to deal with community-level consensus as an alternative to the existing PGS system. Blockchain architecture with hybrid consensus mechanisms seems to be the potential solution to address the trust and scalability issues in the organic food supply chain. This paper proposes a socially inspired hybrid blockchain architecture for the organic food supply chain to address the scalability issues via hybridizing two consensuses’ mechanisms with the combined advantages of Proof of Authority (PoA) and Federated Byzantine Agreement (FBA). In the proposed architecture, much eminent aspect of community-level trust is integrated into the consensus process. Furthermore, this paper presents a concept-level validation as a qualitative analysis of the proposed architecture based on experts’ opinions. Concept-level validation of the proposed model acknowledged that, in the context of social verification, the credibility of the organic products would be enhanced, and hybridization of the consensuses would mitigate the scalability issues
Monitoring Kekenyalan Tahu Kedelai dengan Sensor Kapasitif Menggunakan Mikrokontroller Berbasis Android
Get PDFTofu has the best quality vegetable protein because it has the most complete amino acid composition and is believed to have high digestibility (85% -98%). According to SNI 01-3142-1998 and SII No. 0270-1990 testing criteria for soy tofu based on smell, taste, color, appearance, or texture. Tofu soybeans are prone to physical or texture damage due to factors such as inappropriate pH levels and insufficient storage which results in damaged tofu. Therefore in this study, it is proposed to determine the elasticity of soy tofu with the parameters tested are the pH level in the manufacture of soy tofu, the storage temperature, and the capacitance value to see how thick the tofu is with a capacitive sensor using the capacitor principle. Where the parallel plate capacitor is a capacitor consisting of two parallel metal plates. The test results of all sensors are sent to the database and will be displayed on the page on the Android application which will provide real-time sensor output information to the user. Based on the results of testing on this system using a pH sensor, the pH value is around 3-4 which indicates that the pH level used is very good for use in tofu processing, at pH 4.56 with storage at 29 ° C the highest elastic capacitance value is 3.58. In testing data delivery, the throughput value is 4336,217 b / s and the smallest delay value is 0.017ms because the smaller the delay value, the better the quality of data transmission because there will be no delay in sending data
Rancang Bangun dan Unjuk Kerja Baterai Aluminium-Udara sebagai Penggerak Kendaraan Listrik
Get PDFKebutuhan energi yang semakin meningkat membuat para peneliti meningkatkan teknologi energi terbarukan dan ramah lingkungan. Mesin kendaraan listrik menjadi solusi untuk mengatasi efek rumah kaca yang menggunakan sumber energi berupa baterai. Baterai aluminium-udara menjadi pengembangan lanjut karena memiliki densitas besar, ramah lingkungan, dan murah. Baterai aluminium-udara pada penelitian ini dirancang dan dibuat berbentuk segi empat dengan ukuran panjang 8 cm, lebar 7 cm, dan tebal 0,8 cm. Strukturnya terdiri dari anoda plat aluminium, elektrolit KOH, membran tisu, dan lapisan aktif TiO2 sebagai katoda udara.. Unjuk kerja baterai dilakukan untuk mengetahui kapasitas arus yang dihasilkan, dan karakteristik dari baterai. Pengujian discharging satu sel menggunakan BTS (Battery Testing System) untuk mengetahui kapasitas arusnya. Baterai disusun 12 sel secara seri dan paralel menjadi bertegangan 3 Volt untuk diuji menyalakan motor DC n20, dan dianalisa karakteristiknya, dan waktu lamanya baterai habis. Baterai diuji ke beban motor DC menggunakan alat ukur yang dibuat menggunakan Arduino Uno dengan beberapa sensor untuk mengukur tegangan dan arus secara real time hingga motor DC tidak berputar. Kecepatan rotasi (RPM) diukur menggunakan tachometer. Karakteristik baterai diketahui dari hambatan internal baterai dan karakteristik elektrokimia yang diukur menggunakan alat palmsense. Baterai aluminium-udara diuji discharging dengan arus konstan 5 mA yang menghasilkan kapasitas baterai sebesar 137,6 mAh dalam pengujian satu sel baterai. Baterai sebelumnya yang menggunakan bahan silika xerogel memiliki kapasitas sebesar 0,59 mAh. Penelitian ini menggunakan bahan katalis utama berupa titanium dioksida. 12 sel baterai aluminium-udara mampu menyalakan motor DC tipe n20 selama 12,9 menit
Komunikasi Data pada Penyewaan Sepeda Motor berbasis Internet of Things
Get PDFPenyedia jasa penyewaan sepeda motor harus melakukan pendataan , mengingatkan waktu dan mengetahui kondisi sepeda motor, tetapi pendataan masih menggunakan cara manual, pengembalian sepeda motor sering terlambat dan tidak mengetahui kondisi sepeda motor yang disewakan. Komunikasi data menggunakan Internet of Things serta protokol mqtt pada sistem elektronik registrasi penyewaan dan sistem elektronik pada sepeda motor memudahkan penyedia jasa dalam pendataan, memberi peringatan waktu dan mengetahui kondisi sepeda motor yang disewakan. Sistem elektronik registrasi penyewaan terdiri dari nodemcu, keypad, mfrc522, dan lcd. Sistem elektronik pada sepeda motor terdiri dari arduino mega 2560 pro mini, nodemcu, sensor tegangan, mq7, speed, max6675, pelampung bensin, mfrc522, rtc ds3231, GPS neo m8n, dan buzzer. Sistem elektronik registrasi penyewaan mencatat identitas penyewa dan menampilkan data kondisi sepeda motor, ketika sistem elektronik pada sepeda motor hidup, sistem menampilkan data kondisi sepeda motor terbaru. Ketika sistem elektronik pada sepeda motor mati, sistem menampilkan data kondisi sepeda motor terakhir. Sistem elektronik pada sepeda motor hanya dapat menghidupkan sepeda motor ketika sistem membaca e-ktp yang telah didata/diregistrasi, dan ketika waktu penyewaan habis sistem akan memberikan peringatan suara. Hasil penelitian menunjukkan bahwa mulai dari kondisi sepeda sepeda motor off sampai sepeda motor berjalan dengan kecepatan 60 km/h, data yang terukur disistem elektronik pada sepeda motor mengalami perubahan, suhu lingkungan mesin sebesar 20 o C, tegangan baterai sebesar 1,52 V, gas emisi sebesar 843 ppm, kecepatan sebesar 63 km/h, dan bbm sebesar 11%. Rata – rata waktu pengiriman data dengan jarak 10 meter dari sistem elektronik registrasi penyewaan ke sistem elektronik pada sepeda motor selama 3,3 detik.  
Rancang Bangun Smartglass untuk Pegukuran Suhu Jarak Jauh dengan Memanfaatkan Koneksi Bluetooth
Get PDFSaat ini dalam masa pandemi Covid-19 pengukuran suhu tubuh manusia sangatlah penting untuk pendeteksian dini dan untuk pencegahan penularan virus corona. Umumnya pengukuran suhu tubuh manusia dapat dilakukan dengan menggunakan thermogun oleh petugas keamanan. Potensi untuk penularan sangat mungkin terjadi disebabkan oleh pengukuran suhu tubuh secara langsung. Dari permasalahan tersebut di kembangkan sebuah ide pengukuran suhu tubuh jarak jauh. Tugas akhir ini bertujuan untuk Rancang Bangun Smartglass Pengukur Suhu Tubuh Secara Jarak Jauh. Metode yang dilaksanakan pada tugas akhir ini yaitu ketika sensor suhu GY-906 ini mendeteksi obyek maka data yang telah diperoleh akan di olah diarduino kemudian akan dikirim melalui modul bluetooth master dan slave. Modul bluetooth slave ini menerima data dari pembacaan sensor GY-906 kemudian akan di olah di arduino nano dan menampilkan hasil pembacaan pada oled display. Ketika suhu diatas 37oC maka buzzer akan berbunyi sebagai tanda peringatan. Hasil tugas akhir yang didapatkan berupa jarak maksimum deteksi objek terhadap sensor berkisar 5 cm di luar ruangan ber AC dan 3 cm di dalam ruangan ber AC. Daya tahan Battery mampu digunakan selama 2,5 jam dengan pengisian daya selama 1 jam. Tingkat keakuratan data pada sensor suhu memiliki error ±1 %
Analisa Laju Permukaan Keausan Pada Model Uji Mekanis Bushing Kuningan
Get PDFBushing is a bearing between movable and immovable components. These spare parts function are to hold the rotating shaft and through the gear box into the shaft which is held by the brass material bushing, where those processes are able to reduce the vibrations and the shock of shock loads. The purpose of this research is to know the level of roughness and wear rate of brass bushing, this research is conducted to find out how efficient it is, the use of a bushing with a field that is very likely to have a large shock load and to know the wear test data, and roughness of the brass bushing. The type of this research used an experimental method. From the results of the study it was concluded that to get the roughness and wear value using a conventional lathe, the spindle rotation was 970 rpm. Based on the experiments with predetermined parameters, the lowest roughness value was Ra 1.13 and the highest roughness was Ra 2.41. In the experiments for the wear test of each specimen, the wear rate obtained after the initial weight was subtracted from the third one hour weight, from the lightest of 0.07 grams and the heviest of 1.62 grams
Rancang Bangun Sistem Automatic Semi Returnless Berbasis Arduino Uno pada Engine Caterpillar C27 Studi Kasus PT. Sapta Indra Sejati
Get PDFPump units with a Caterpillar C27 engine with an EUI (Electronic Unit Injector) fuel system that often has low power due to filter clogging at PT. Sapta Indra Sejati. Filter cloggingoccurs due to due to the thickened biofuel content and creates a crust. If the machine has a problem, the mining process can be disrupted because the coal loading area is flooded. This study aims to create an additional system in the form of a automatic semi-returnless where the fuel return line is changed automatically into the filter because the fuel return is clean. The movement of the return control valve is regulated by a microcontroller which is programmed according to specifications and needs. The microcontroller used is Arduino Unowith pressure and temperature sensors. Arduino Uno is programmed when the engine will experience low power with a fuel pressure of 400 kPa then the return path is changed to semi returnless. With a change in the semi returnless path, the pressure becomes stable at 380 kPa and the engine RPM is stable with power that is still maintained. The advantages of semi-returnless system are that filter replacement costs can be reduced and production time is not interrupted
Rancang Bangun Mesin Uji Bending Untuk Material Komposit
Get PDFThe bending test machine for composite materials is a machine designed as material testing tool, especially composite materials. The objectives achieved are to design and manufacture a bending test machine as well as to test the composite material of epoxy resin and sugarcane powder based on the ratio of weight fractions. The machine design method uses the VDI 2222 method approach. From the method carried out, the results obtained from the design of the bending test machine using Solidwoks 2017. The design results of the bending test machine with dimensions of length 500 mm, width 500 mm, and height 1.400 mm, which consists of several main components including: frame; suppression system; and supports. The estimated time of the bending test machine production process takes 51,69 hours or 7 days. The results of the composite material test resulted in the bending strength of the 100% resin weight fraction of 67,71 Mpa and the 50% sugarcane powder weight fraction of 33,74 Mpa