PENS Repository
Not a member yet
1406 research outputs found
Sort by
Visualisasi Estimasi Distribusi Temperatur Menggunakan Metode Elemen Hingga Pada Prototype Mesin Pengering Gabah Elektronik
Sebagai bahan baku dari makanan pokok sebagian besar masyarakat Indonesia, gabah memegang peranan penting dalam ketersediaan pangan di Indonesia. Beras merupakan bahan pangan pokok bagi sebagian besar masyarakat Indonesia. Tapi sampai saat ini proses pengolahan padi masih sangat kurang. Terlebih lagi pengolahan pasca panen. Diperkirakan tingkat kehilangan pasca panen hasil pertanian ini mencapai sekitar 20 % dari total produksi. Salah satu pengolahan pasca panen yang perlu di benahi adalah sistem pengeringan gabah. Dimana masih memanfaatkan panas matahari oleh karena itu dibutuhkan alat pengering buatan yang tidak tergantung lagi terhadap panas matahari sebagai tenaga pengering
Namun mesin pengering selama ini belum mampu menyesuaikan suhu, sehingga terdapat kemungkinan mempengaruhi kondisi gabah. Suhu yang terlalu lembab akan membuat gabah menjadi busuk dan rusak. Hal seperti ini terjadi karena suhu di ruang pengering tidak diketahui secara menyeluruh. Oleh karena itu dalam proyek akhir ini diterapkan sebuah metode monitoring pada prototype pengering gabah dengan melakukan estimasi temperatur pada titik-titik yang belum diketahui temperaturnya. Dengan menggunakan metode elemen hingga atau Finite Element Method (FEM) dapat diketahui distribusi temperatur pada ruang pengering gabah tersebut. Hasil estimasi distribusi temperatur ditampilkan dalam bentuk visual. Kemudian dari perhitungan estimasi ini akan didapatkan rata-rata suhu di ruang pengering yang dapat menjadi referensi sistem untuk pengontrolan pemanas.
Dengan adanya visualisasi dari sistem ini maka pengamatan terhadap distribusi temperatur dalam prototype ini dengan mudah dapat dilakukan.
Kata kunci: metode elemen hingga, visualisas
SINKRONISASI DAN PENGAMANAN MODUL GENERATOR LAB-TST BERBASIS PLC (SOFTWARE)
Sinkronisasi generator merupakan suatu proses menggabungkan generator dengan generator lainnya setelah memenuhi syarat tertentu. Adapun tujuan dari sinkronisasi generator adalah untuk mendapatkan daya yang lebih besar, namun aplikasi sinkronisasi generator di industri masih banyak yang mengunakan kontrol konvensional. Pada proyek akhir ini penulis membuat sebuah alat penyinkronisasi dan pengamanan modul generator Lab-TST berbasis PLC yang diharapkan bisa mempermudah proses sinkronisasi generator. PLC yang akan digunakan adalah Zelio SR3B261BD yang berfungsi sebagai pengendali proses sinkronisasi generator berdasarkan input dari pembacaan sensor dan untuk mengontrol kerja kontaktor agar bekerja sesuai dengan parameter yang diinginkan. Dari hasil yang telah dilakukan generator akan sinkron apabila syarat kerja paralel telah terpenuhi yaitu ketika tegangannya sama 380 volt dan frekuensinya 50 Hz dengan urutan fasa yang sama.
Kata kunci : parameter sinkron, kontroller, sensor
Pembuatan Text-To-Speech Synthesis System Untuk Penutur Berbahasa Indonesia
Perkembangan teknologi telekomunikasi yang sangat pesat dihasilkan berbagai produk teknologi telekomunikasi yang sangat beragam. Produk telekomunikasi yang dihasilkan dari waktu ke waktu merupakan produk yang lebih efektif dan efisien dalam hal penggunaan dan pemeliharaan, baik secara teknis maupun biaya. Pada paper ini diusulkan suatu metode diphone concatenation untuk mengkonversikan penulisan teks pada PC atau laptop menjadi output suara sesuai dengan teks yang dituliskan. Pembuatan ini dilakukan dengan menggunakan metode synthesis system yang terdiri dari tiga proses yaitu text pre processing, pembangkitan prosody dan proses concatenation. Pembuatan perangkat lunak ini didahului dengan perancangan sistem aplikasi, kemudian rancangan tersebut diimplementasikan dengan text to speech synthesis system yang terdiri dari proses text pre processing, pembangkitan prosody, dan proses concatenation. Setelah diimplementasikan, perangkat lunak ini diuji coba sesuai dengan spesifikasi kebutuhan dan kemampuan yang dimiliki yaitu melakukan pengkonversian dari input kata atau kalimat ke bentuk representasi diphone yang kemudian diphone-diphone tersebut akan disambungkan (concatenate) untuk menjadi suara seperti teks yang diinputkan. Dengan demikian aplikasi perangkat lunak ini dapat digunakan untuk membantu para tuna netra agar dapat membaca berita dari internet ataupun membaca email.
SISTEM MONITORING KWH METER 3 PHASE DAN KALKULASI BIAYA PEMAKAIAN
Monitoring of the equipment through a computer is a technology that has been widely used. This technology provides the changes to the use of electronic equipment. An example of the electric meter in the recording made by a person assigned to it are still using manual system that is the way to see directly in kWh meter.Sistem like this so it is still very conventional in its implementation requires much time and energy. Technology monitoring kWh meter 3 phase at the end of the project is to minimize the time and effort because it also comes with a usage fee calculations. kWh meter reading system using a monitoring system consists of a modified analog kWh meter to be read digitally, optocoupler sensor circuit, circuit The minimum system, a computer or laptop. To connect between a monitoring tool used with a laptop RS-232 serial communication. The readings of the kWh meter is connected with a series of interfacing to the Atmega microcontroller circuit 32 which connect with the LCD or computer. Next the program on a laptop, which uses Visual Basic monitoring kWh meter readings digitally converted from the previous analogues kWh. Keywords : RS-232, kWh meter, microcontrolle
RANCANG BANGUN MANAGEMENT APLIKASI DAN CDR (CALL DATA RECORD) PADA SISTEM INTERNET TELEPHONY BERBASIS EMBEDDED EBOX-4300
The need for an information is a matter that can not be eliminated. All people in a variety of affairs can not be separated from a data / information. The information in the field of Education, Economics, Business, Health, and so is one example of things that humans can not be left in their everyday lives. Very high demand is what makes the Telecommunications Technology is developing very fast to make that information can be connected to each other. In this Final Project created an application settings for using internet telephony applications. This system allows telephone and Internet applications running together with the provision of billing data that has been validated previously. This application runs on an embedded device eBox-4300 with the Operating System that has been specially modified. This system also regulates synchronization of billing data with two other applications of the phone and internet with interprocess communication between applications. Results of this final project can be implemented as Internet telephony management application that is used in a public place. Keywords: Windows Embedded CE, eBox-4300, Platform Builder, Microsoft Visual C #, Management Applications, CDR
KONTROL EKSPRESI WAJAH BERDASARKAN KLASIFIKASI TEKS MENGGUNAKAN METODE NAIVE BAYES
Communication can be done from verbal and non verbal information like writing which is derived from word, sentence, paragraph etc. to find texts information using texts classification.In that classification process will use set data which has been known its emotional class such as: anger, joy and sadness by using Naïve Bayes method. It will be seen how far that method can classify emotional data in English. The result from text classification is used to control face expression by VRML program to visualize face expression. Key word: texts classification, emotion, naïve bayes, vrml
KONTROL PERILAKU AGEN MENGGUNAKAN FUZZY LOGIC BERBASIS SEMANTIK
Natural language are model computation process which created by language, so it can make interaction between human and computer becomes easier. This model computation model is very useful for scientific needs such as research natural language for human life. All knowledge subject which have relation with natural language processing includes are : Fonetic and fonology, morfology, syntax, semantic, pragmatic, discourse knowledge, and world knowledge. The definition of semantic are mapping syntax structur with using each word into more basic structural and it is not depend on sentence structure. Semantic are learn about the meaning of any words and how this words can translate any complete sentence. Semantic analysis process is used to recognize the words that pass away and have relation with the word in domain. This process works to connect the syntax structure from word, phrase, sentence, due to paragraph At Previous research which have any relation with semantic mapping and fuzzy logic, semantic mapping works depend on physically display and then displaying any model / character role in story. Based on fuzzy logic measurement and agent conditional graph, agent who had energy between 75 ' 100 % had speed value more constant than agent with energy left 50% or less than 50%. Key word : Semantic, mySQL, fuzzy logic, agent
SISTEM MANAJEMEN PROYEK BERBASIS ONLINE MENGGUNAKAN ORACLE
In project management activities required good coordination and cooperation between divisions of a compact team for executing the project. During this time, the conventional makes project planning, review and evaluate the tasks of the project, its need to hold a meeting directly from the people who act as managers and planners. The professional managers often are the ones high mobility so as not to always be in place when needed, so the project coordination will be hampered and becomeinefficient.With the current technological advances in particular the Internet, this problemis very possible to be solved by providing software that is devoted to project management, which can be accessed online for multiuser with real-time nature of theapproach so that managers can perform collaborative work wherever they are locatedduring available computing devices that connect to the Internet. Therefore, it can help managers to perform project management by providing a feature to visually describe the project implementation, namely: Task Sheet, Time Line, and the Work Calendar. With the implementation of the project will facilitate planners in determining the starting and finishing schedule also project compiler tasks Key Word :Project Management,Online,Tim
Analisa Performansi Low Density Parity Check Code Pada Sistem CDMA
The purpose of this final project is to analyze the performance of Low Density Parity Check Code for CDMA system. The analyze is to compare the simulation program of LDPC-CDMA with different parity check matrix LDPC and different amount of active user. The comparison for the system is compare based on Bit Error Ratio for the systems. So it could be declare with using what decoding method it can perform better. For the result of Bit Error Rate, the system LDPC for CDMA with different matrix has different value too. For the small matrix of LDPC has value of BER smaller than bigger matrix of LDPC. Then, for amount of many active user that has BER many too with equal little of active user. Key Words : LDPC, CDMA, BER, Bit Flip, Sum Product
Perbandingan Kinerja LDPC (Low Densiti Parity Check) Dengan Metode Decoding Bit Flip Pada Kanal AWGN dengan Multipath Fading
As an effect of the globalization era, telecomunication technology, especially in wireless comunication system is forced to prepare high data rate with reliable Quality of Services (QOS) with Low Bit Error Rate (BER) and very small power. The problem in mobile comunication is AWGN and multipath fading, which affected the rising of error data receive on receiver side. This final project to compare the coding tehnique�s Low Density Parity Check Code (LDPC) on AWGN and multipath fading. Encoding on transmitter with sparse matrx method based on Approximation Lower Triangular in coderate ½, while decoding apply with decoding bit flip. With a different matrix size, the result of LDPC isn�t to variably in LDPC performance. At different iteration, more iteration influence LDPC with the result that good.BER acquired 10-5 in AWGN channel acquired at average values 2.058 dB. Where as in multipath fading channel 6.2 dB, It could be declare that LDPC code has better performance through AWGN better than multipath fading channel with use decoding method bit flip. Keywords : Low Density Parity Check Code, sparse matriks based on Approximation Lower Triangular, AWGN channel, Multipath fading, decoding bit flip, BER (Bit Error Rate