cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota semarang,
Jawa tengah
INDONESIA
Jurnal Teknik Elektro
Published by Universitas Negeri Semarang
ISSN : 14110059     EISSN : 25491571     DOI : http://dx.doi.org/10.15294/jte
Core Subject : Engineering,
Electrical & Electronics Engineering
Arjuna Subject : -
Articles 482 Documents
 2   3   4   5   6 
SISTEM PAKAR MENGGUNAKAN MESIN INFERENSI FUZZY Kaswidjanti, Wilis
Jurnal Teknik Elektro Vol 1, No 2 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Salah satu cara untuk menangani ketidakpastian pada bidang sistem pakar dapat digunakan logikafuzzy, yang juga merupakan salah satu bidang kecerdasan buatan. Logika fuzzy memiliki toleransi terhadapdata-data yang tidak tepat dan didasarkan pada bahasa alami. Dengan menggunakan mesin inferensi fuzzy,dapat dibuat aturan-aturan if-then fuzzy untuk menurunkan pernyataan yang bersifat linguistik. Metodedefuzzifikasi yang digunakan berbagai metode seperti max-min dan center average.Kata kunci : Sistem Pakar, Mesin Inferensi Fuzzy, Metode Defuzzifikasi.
PERANCANGAN ALAT UKUR IMPEDANSI PEMBUMIAN Putri, Riana Devi Hamardji
Jurnal Teknik Elektro Vol 1, No 2 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pengukuran impedansi selama ini dilakukan secara praktis dengan mengukur tahanan resistansidan secara percobaan dengan mengukur harga tegangan puncak dan arus injeksi secara terpisah.Impedansi pembumiannya diperoleh dengan membagi harga tegangan puncak dengan arus puncaknya.Dalam penelitian ini perancangan dilakukan untuk memperoleh alat ukur impedansi pembumianyang mampu mengukur tegangan puncak, arus puncak dan impedansi pembumian dalam satu kesatuanpengukuran. Pengujian alat ukur dilakukan dilaboratorium menggunakan sumber tegangan impuls 400Vdan rangkaian-rangkaian pengganti untuk keperluan pengujian.Hasil pengujian alat ukur impedansi pembumian ini menunjukkan bahwa alat ukur telah dapatdigunakan untuk pengukuran impedansi impuls dan tahanan dc yang menggunakan rangkaian penggantidengan mengabaikan pengaruh pengkabelan. Pengujian dengan beban resistansi, induktansi sertacampuran induktansi dan resistansi menunjukkan kecenderungan bahwa semakin besar beban yangdigunakan akan memperbesar pula impedansi impulsKata kunci: Tegangan puncak, arus puncak, impedansi pembumian
STUDI KOMPARASI JARINGAN SOFTSWITCH DENGAN JARINGAN PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) DALAM HAL EFISIENSI BANDWIDTH SEBAGAI JARINGAN TELEKOMUNIKASI MASA DEPAN Hendratmono, Catur; Selo, -
Jurnal Teknik Elektro Vol 1, No 2 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PSTN adalah sistem telekomunikasi berbasis sirkit switch yang mempunyai perangkat-perangkatyaitu sentral, jaringan dan pesawat telepon. Jaringan PSTN hanya melayani layanan suara. Pada jaringanini setiap call akan diberikan sebuah kanal tersendiri dan tidak ada pengguna lain yang dapatmenggunakan kanal tersebut selama call. Jaringan Softswitch adalah sistem komunikasi yangmenggunakan elemen jaringan berupa software sebagai pusat mengendalian panggilan, system ini berbasispaket switch. Jaringan Softswitch satu kanal bisa di pakai beberapa kebutuhan, yaitu call, dan pengirimandata Berdasarkan hasil analisis perbedaan bandwidth Softswitch dengan bandwidth PSTN dihasilkanbandwidth Softswitch sebesar 68.577,6 Kbps sedangkan bandwidth PSTN 391.872 Kbps sehingga lebihefisien bandwidth Softswitch. Komparasi pemakaian bandwidth Softswitch terhadap bandwidth PSTNdihasilkan efisiensi bandwidth di Softswitch sama dengan 5,71 kali efisiensi bandwidth di PSTN sehinggamendukung jaringan bersifat broadband atau berpita lebar jadi dalam upaya penyelenggaraan jaringantelekomunikasi masa depan dapat terpenuhi. Bandwidth Softswitch lebih efisien karena dipengaruhi olehfaktor kompresi dan codec.Kata kunci : Jaringan Softswitch, Jaringan PSTN, Efisiensi Bandwidth.
PENGARUH DURASI WAKTU TERHADAP PEMBENTUKAN PAKET CALL DATA RECORD PADA SERVING GPRS SUPPORT NODE DI P.T TELKOMSEL REGIONAL JAWA TENGAH DAN D.I. YOGYAKARTA Wirati, Andyan Susilo; Dewanto, Wahyu
Jurnal Teknik Elektro Vol 1, No 2 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

SGSN (Serving GPRS Support Node) is a node which connect GSM network to GPRS network. SGSNfunctions like MSC in GSM system in monitoring MS location or mobility management, paging, datacompression, traffic calculation, charging, security and controlling data accesing prosses. SGSN is connectedbase station by using Gb interface.Data collecting in details of using GPRS service usage is needed to know how far the GPRS servicedevelopes among the customers is one of the systems used those data collecting.The population of this research is P.T Telkomsel cellular operator. The research sample is takenrandomly. Five research samples for each day in five days can be obtained. The sample taken is not based onthe used application. The research variables comprise time duration and file package.The research is conducted by quantitative methode based on the data got from P.T Telkomsel operators,then analyse toward SGSn and effect of time duration toward CDR file formation will be carried out. Theresearch data in the form of SGSN CDR output data and GPRS empirical research dat are the use of G{RS bycustomers seen from the used time duration and data volume.The result of this research will look out how far the effect of the time duration used by customers towardCDR file formation in SGSN is the research finding shows that the time duration used by customersinfluences the amount of file package formed in SGSN so that it can affect the next process. Besides, there aesome factors supporting the data sending delay technically or non technically. Another research findingshows the GPRS service quality of P.T Telkomsel bassed on the research.Based on the research results, it is suggested to do a research on charging GGSN in GPRS, chargingmechanism of each software supporting SGSN. So that the strong point of eacg software we can know.Keyword : SGSN, Duration of time, CDR
ANALISIS KOORDINASI OVER CURRENT RELAY DAN RECLOSER DI SISTEM PROTEKSI FEEDER GARDU INDUK SEMEN NUSANTARA (SNT 2) CILACAP Hariyanto, Dwi Puji; Tiyono, -; Sutarno, -
Jurnal Teknik Elektro Vol 1, No 1 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The main aim of protection system is used to protect safety of human cause by electrics current and to protect equipment from the fault. The fault can cause over current which has big value and endangerous the equipment. Besides the fault can also cause supply of energy to consumer is disturbed. The fault can be permanently or temporary. Coordination of protection system between OCR and recloser is needed to anticipate the fault.To create good coordination in protection system, the threshold setting is the main key. In determining OCR and Recloser setting, there are many effect that need attention for example the use of curve characteristic, current setting (In) and time setting (Tms)Based on reaserch data and calculation, the biggest of 3 phase short circuit over curent in feeder SNT 2 is 12 kA in the near of substation. While the smallest of 3 phase short circuit over curent in feeder SNT 2 is 1,9 kA in the tail of network. The smallest of 3 phase short circuit over curent can be detected by recloser 2.The three relays, OCR, Recloser 1 and Recloser 2 have each different graph of characteristic that is not proportioned. Its shows that the setting of three relays is correct because there isn’t any relay that precede the other relays.Keyword :  Protection system, OCR, Recloser, Coordination, Fault, Feeder SNT 2.
APLIKASI JARINGAN SARAF TIRUAN BACKPROPAGATION UNTUK MEMPREDIKSI PENYAKIT THT DI RUMAH SAKIT MARDI RAHAYU KUDUS Jumarwanto, Arif; Hartanto, Rudi; Prastiyanto, Dhihik
Jurnal Teknik Elektro Vol 1, No 1 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Artificial neural network (ANN) is a modern computing paradigm. That can be used for the pattern recognition and other. Backpropagation is artificial neural network which using hidden layer addition. Computation of artificial neural network through some certain step like training phase and examination. After both the step reached, so a neural network capable to recognize pattern to be entered will be found.The purpose of this research is simulation of artificial neural network that capable to pattern recognition from output of electrocardiogram by helped of MATLAB program. Input of result electrocardiogram record, then input of data can be normalization after that data can be proccesed by backpropagation computing with two step (training phase and examination phase). Output of ANN is like explaning condition of patient is normal, rhinitis kronis or epistaksis.Keyword : rhinitis kronis, epistaksis, artificial neural network.
SIMULASI SISTEM PEMBAYARAN RETRIBUSI GERBANG PARKIR MENGGUNAKAN MIKROKONTROLER AT89S51 Suwarno, Pujo; Widodo, Thomas Sri
Jurnal Teknik Elektro Vol 1, No 1 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In line with development of science and technology, giving many ease to us to do various activities from thing which is easy until complicated thing. Control system increasingly plays important role in assisting human life every day. One of controller system which many enthused is microcontroller. In this scheme of writer will build a system use microcontroller as its controller. Appliance which will be designed is a simulation system payment of retribution gate park to use AT89S51 microcontroller. This Appliance will work when vehicle get through the gate park. Vehicle moment get through the gate park will be detected by sensor to open of enter latch, and close of enter latch. Later, its detected by light sensor at retribution area to determine vehicle type so that display of LCD ( Liquid Crystal Display) puts forward vehicle type information and many coin to be paid. Having taken steps payment of retribution, controller of exit latch will open and close automatically Keyword :  Light Sensor (LDR), AT89S51 Microcontroller, LCD M1632,limmit switch, Motor of DC.  
ANALISIS KERUGIAN DAYA PADA SALURAN TRANSMISI TEGANGAN EKSTRA TINGGI 500 KV DI P.T. PLN (Persero) PENYALURAN & PUSAT PENGATURAN BEBAN (P3B) JAWA BALI REGIONAL JAWA TENGAH & DIY UNIT PELAYANAN TRANSMISI SEMARANG Sujatmiko, Hernawan
Jurnal Teknik Elektro Vol 1, No 1 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Necessity of electric power in Indonesia straight rise agree with economic and industry development a long with society growth. Because of that, government must be well to give service of electric with SUTET 500 kV.In the distribution electric power from generation to load centre used transmission line, because distance from generation to load centre is so far. Electric power in flow, they have a power loss. It’s because factor of isolator leak and corona leak then the voltage will be down (voltage dropped) and for efficiency of transmission will be down too.The aim of this research is to calculate power loss in SUTET 500 kV. This calculates had been done three different times in SUTET Ungaran – Pedan at 15th-24th August 2007 07.00 am (lead has been started), 13.00 pm (lead has been changed from low to middle) and 18.00 pm (lead on the top). As the result of this calculate, at Wednesday, 15th August 2007 at 18.00 pm have the biggest value of power loss 6.179.710,62 Watt and the smallest power loss has been done in Wednesday 15th August 2007 at 07.00 am and Wednesday 22nd August 2007 at 07.00 am 2.816.691,632 Watt.The SUTET 500 kV Ungaran – Pedan efficiency value in good condition because the average approximately 100 %. Nevertheless, there are lack of the result because calculate only in ten days. The best way to reduce this lack is continuously calculation.Keywords :PowerLoss,Voltage Dropped, Corona
ANIMASI PROSES PENGIRIMAN SMS PADA GSM MENGGUNAKAN MCROMEDIA FLASH MX Pratama, Suenda Adi; Setyanto, Budi
Jurnal Teknik Elektro Vol 1, No 1 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One of popular services in GSM (Global System for Mobile Communication) system is SMS (Short Message Service). Beside of the low delivery cost, SMS also allows notification and alert delivery. SMS has good and important role in telecommunication world, so the understanding about SMS technology is very needed. Looking for a good method to help about SMS technology understanding until right know is rarely, especially about SMS delivery process. This project aims to create an animation of SMS delivery process on GSM system using Macromedia Flash MX, so hopefully could help to study about SMS delivery process. The SMS animation delivery program with Macromedia Flash MX could demonstrate three processes in SMS delivery mechanism, such as SMS delivery success, delay and fail, but can not demonstrate the signal process and the conversion message with detail.Keyword : GSM, Macromedia Flash MX, SMS
ALAT PENCEGAH KEBAKARAN BERBASIS MIKROKONTROLER AT89S51 PADA BOX PANEL KONTROL LISTRIK Alfalah, -; Widodo, Thomas Sri
Jurnal Teknik Elektro Vol 1, No 1 (2009): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sejalan dengan perkembangan ilmu pengetahuan dan teknologi, banyak memberikan kemudahan kepada kita untuk melakukan berbagai aktivitas dari hal yang mudah sampai hal yang rumit. Sistem pengendalian semakin berperan penting dalam membantu kehidupan manusia         sehari - hari. Salah satu sistem pengendali yang banyak diminati adalah mikrokontroller.Pembuatan alat pencegah kebakaran dilatarbelakangi oleh kebakaran yang banyak disebabkan oleh listrik karena hubung singkat, kabel – kabel yang terbakar karena isolator kurang bagus dan mcb yang terbakar karena kelebihan beban yang terdapat pada box panel listrik. Permasalahan dari penelitian ini adalah bagaimana cara membuat alat dengan memanfaatkan mikrokontroler AT89S51 dan peralatan elektronik lainnya yang dibutuhkan dan dapat diprogram sesuai keinginan. Sistem pengaman ini terdiri dari: sensor suhu(LM35DZ), sensor cahaya (LDR), ADC sebagai inputan. Sistem mikrokontroler AT89S51 sebagai central processing unit dan tujuh segmen serta relay sebagai outputan sistem. Sistem kendali yang digunakan adalah kendali on of. Prinsip kerja dari alat ini jika mendeteksi cahaya yang dihasilkan dari percikan api/api (sensor cahaya) atau suhu yang panas (sensor suhu) maka akan memutuskan jaringan listrik tiga fase secara otomatis dan alarm sebagai tanda adanya bahaya bagi operator atau petugas serta kipas untuk memadamkan api. Kesimpulan yang didapat bahwa alat pencegah kebakaran pada box panel dapat digunakan untuk menghindari terjadinya kebakaran yang disebabkan oleh listrik pada box panel dan diharapkan tingkat kebakaran dapat dikurangi.

Page 4 of 49 | Total Record : 482

 2   3   4   5   6 

Filter by Year

2009 2023


Reset
Filter By Issues
All Issue Vol 15, No 2 (2023): Jurnal Teknik Elektro Vol 15, No 1 (2023): Jurnal Teknik Elektro Vol 14, No 2 (2022): Jurnal Teknik Elektro Vol 14, No 1 (2022): Jurnal Teknik Elektro Vol 13, No 2 (2021): Jurnal Teknik Elektro Vol 13, No 1 (2021): Jurnal Teknik Elektro Vol 12, No 2 (2020): Jurnal Teknik Elektro Vol 12, No 1 (2020): Jurnal Teknik Elektro Vol 11, No 2 (2019): Jurnal Teknik Elektro Vol 11, No 1 (2019): Jurnal Teknik Elektro Vol 10, No 2 (2018): Jurnal Teknik Elektro Vol 10, No 1 (2018): Jurnal Teknik Elektro Vol 9, No 2 (2017): Jurnal Teknik Elektro Vol 9, No 1 (2017): Jurnal Teknik Elektro Vol 8, No 2 (2016): Jurnal Teknik Elektro Vol 8, No 2 (2016): Jurnal Teknik Elektro Vol 8, No 1 (2016): Jurnal Teknik Elektro Vol 8, No 1 (2016): Jurnal Teknik Elektro Vol 7, No 2 (2015): Jurnal Teknik Elektro Vol 7, No 2 (2015): Jurnal Teknik Elektro Vol 7, No 1 (2015): Jurnal Teknik Elektro Vol 7, No 1 (2015): Jurnal Teknik Elektro Vol 6, No 2 (2014): Jurnal Teknik Elektro Vol 6, No 2 (2014): Jurnal Teknik Elektro Vol 6, No 1 (2014): Jurnal Teknik Elektro Vol 6, No 1 (2014): Jurnal Teknik Elektro Vol 5, No 2 (2013): Jurnal Teknik Elektro Vol 5, No 2 (2013): Jurnal Teknik Elektro Vol 5, No 1 (2013): Jurnal Teknik Elektro Vol 5, No 1 (2013): Jurnal Teknik Elektro Vol 3, No 2 (2011): Jurnal Teknik Elektro Vol 3, No 2 (2011): Jurnal Teknik Elektro Vol 3, No 1 (2011): Jurnal Teknik Elektro Vol 3, No 1 (2011): Jurnal Teknik Elektro Vol 2, No 2 (2010): Jurnal Teknik Elektro Vol 2, No 2 (2010): Jurnal Teknik Elektro Vol 2, No 1 (2010): Jurnal Teknik Elektro Vol 2, No 1 (2010): Jurnal Teknik Elektro Vol 1, No 2 (2009): Jurnal Teknik Elektro Vol 1, No 2 (2009): Jurnal Teknik Elektro Vol 1, No 1 (2009): Jurnal Teknik Elektro Vol 1, No 1 (2009): Jurnal Teknik Elektro More Issue