Elektron Jurnal Ilmiah (EJI - Department of Electrical Engineering, Politeknik Negeri Padang)
Not a member yet
158 research outputs found
Sort by
SISTEM INFORMASI AKADEMIK BERBASIS WEB MENGGUNAKAN PENDEKATAN BERORIENTASI OBJEK PADA JURUSAN TEKNOLOGI INFORMASI POLITEKNIK NEGERI PADANG
Get PDFDepartment of Information Technology Padang State Polytechnic growing rapidly, the number of students and the amount of data will increase too. However, these conditions will bring complex problems to the department to manage it in quantitative and qualitative way. How complicated the problems faced when there are a lot of data that needs to be processed, and if it goes wrong it needs a long time to find, fix and change it. To minimize the errors and redundancies in processing the data, the department requires an academic information system. This system will manage student grades, final assignment and job training data at Information Technology Department. This web based Academic Information System was develop by using object oriented concept and JAVA especially J2EE technology as programming language and MYSQL Server as database. This system also design by using UML(Unified Modeling Language)
RANCANG BANGUN SISTEM INFORMASI BATAM DIRECTORY MENGGUNAKAN METODE BACKWARD CHAINING BERBASIS MOBILE
Get PDFThis article is designed for an information system in the form of expert system applications to present information on Batam Directory. The purpose of this system is to help provide information about the city of Batam as a whole to the residents of Batam city in particular and thelocal and foreign tourists as well as prospective investors in general. The system presents information in the form of public service to the residents of Batam city government and other newcomers as well as products and services are made and offered by the business and government. The analysis was done by determining the first goal, then do these arching to obtain the desired information. The design system uses backward chaining inference method to the implementation ofthe system using My-SQL database systems and programming languages of PHP and JQuery. The system is based on mobile, so it can be accessed using a mobile device
SINUSOIDAL NOISE CANCELATION DENGAN MENGGUNAKAN DIGITAL SIGNAL PROCESSING STARTER KIT TMS320C6713
Get PDFOriginal speech signal is needed both in telecommunications and in some instruments in a variety of fields. Not infrequently, the original audio signal is damaged due to noise. This noise can cause the original signal changes in the actual form. In the final project will be designed FIR filter to remove noise by using TMS320C6713 DSK. Sound signal to be input to the mixed noise removal filter system noise. The mixed voice signal will be searched by subtracting the signal difference to noise signal output FIR filter to get the signal e (n), and then do an adaptation resulting filter coefficients. Results of the adaptive filter coefficients would be put back to calculate the noise signal output next FIR filter. Original voice signal used is the word "sinus" uttered by teenage boys, teenage girls, boys and girls. Girl's voice had the highest frequency with an average 522.50 Hz, the frequency of the sound of the boys 462.63 Hz, the sound frequency of 222.58 Hz girls and voice frequencies teenage boys at 201.49 Hz. Noise signal used is 100 Hz sinusoidal noise. From the test results obtained for the system output signal SNR sound input teenage boy was 19.94 dB. SNR output signal to the input of 21.39 dB girls. SNR signal input output system for boys was 34.70 dB. SNR output signal to the input system daughters of 35.52 d
PENGENDALI BEBAN LISTRIK MENGGUNAKAN HAND PHONE MELALUI MISSCALL
Get PDFAn Electric Load Controller is a tool to make easier an implementation of repeated activities such as to turn on and turn off the electric load by using a hand phone as a controller. The controller aims to take into account problems related to control systems and to design a control system that can be implemented in the house hold in case of turning on and off electric loads. A user may turn on and off electric loads from a remote place easily. The design of control, microcontroller, relay, load and rectifier are applied on this research. Furthermore, a hand phone is used for the missed call feature and IC AT89S52 is used on the microcontroller design through BASCOM 8051 programming so as to make missed call feature can be transmitted to a destination number without manually turning off and on electrical devices at home
IMPLEMENTASI WEB CAMERA SEBAGAI VISUAL INSPECTION OTOMATIS UNTUK PROSES PEMUTUAN UKURAN DAN TINGKAT KEMATANGAN BUAH TOMAT
Get PDFQuality and sorting is one method to classify an observed object and the end result of the inspection process. Quality and sorting can be done manually or automatically where quality and one manually sorting can be done by utilizing the human senses. Quality automatically requires certain tools such as the use of digital cameras to replace the sensory function of the human eye as a visual inspection. By using a digital camera, the camera capture object images obtained is processed via image processing, the processing system can be used as an automated visual inspection for the decision making process quality and sorting. The ability to recognize objects in the form of camera pixel component, can be used to determine the size and color, while the components can be used to determine the level of maturity. This system implemented as automatic visual inspection to determine quality tomato fruit size and maturity level. Results of testing this system is able to recognize 100% ripe tomatoes and 73% were able to recognize the young tomato fruit, the overall ability of the system to recognize the maturity level of the tomato fruit was 86.15%. While the tomatoes quality test based on class size with large, medium and small work 100%. Recognize the success rate of fruit maturity is greatly influenced by the current lighting objects tomatoes in camera capture. We hope this research can be used as input data for the next stage as the data input to the system pemutuan and automatically sorting tomatoes
SISTEM INFORMASI KEARSIPAN POLITEKNIK NEGERI PADANG BERBASIS WEB
Get PDFThe resulting of system is a web based application executed, it can be accessed by many users at the same time trough each on computer from browser by accessing the specified address. The users of this system consists of a head, department chairman, the general secretary of the department and administration of department, this system is build using PHP programming language and MySql database server. Advantages of this system is that it can save paper (paperless) and storage physical space. On this system can monitor incoming mail, incoming mail was processed, outgoing mail and letters that have been in the disposition that is in Polytecnic with available in online then this system becomes more effective performance and efficientl
MODIFIED SWEEP ALGORITHM FOR ROUTE SELECTION IN PUBLIC BUS ROUTING PROBLEM USING FUZZY DATA
Get PDFThis paper investigates public bus route selection where demand is uncertain and evaluates the role of fuzzy logic in the MSA. The uncertain demand data are presented in linguistic form and transformed into fuzzy numbers. The crisp values obtained by the fuzzy logic are used to replace the exact demand in selecting best routes. The patterns of fuzzy data are presented to show capability of fuzzy data in representing exact data
PENDETEKSIAN DERAU CITRA SECARA OTOMATIS MENGGUNAKAN TEKNIK JARINGAN SYARAF TIRUAN
Get PDFThis research is application of neural network technique to optimize convolution operation using mask 3x3 to omit the image blurring effect. This neural network consists of three layers. They are input layer (9 neuron inputs), output layer (1 output neuron) and hidden layer. Each layer is applied to 3, 5 and 7 neuron using back propagation technique. The result shows the using five neurons to hidden layer give the highest value of sound pixel recognizing (76.47%
RANCANG BANGUN ELEKTROKARDIOGRAPH BERBASISKAN PERSONAL COMPUTER (PC)
Get PDFElectrical signals of body are chemical’s respond of specific cell type. Electrocardiograph is used to record heart electrical activity which flow around the chest. This electricity flow is responded by sensor which acts as conductor. AD624AD is an instrument amplifier which is designed to transducer application with low level and pressure transducer. AD624AD has high precisions with low noise and input offside voltage less than 0,25 μV/0C. AD624AD not need pre-gain 1, 100, 200, 500 and 1000. An external resistor can be used to arrange the gain of AD624AD with level rating 1 up to 10.000 However, this equipment have input voltage to sensor 0,3 to 50 mV. The output voltage result from 1,6 to 5 volt using this amplifier
PENGATURAN PORTAL PADA PENGURUTAN PARKIR MOBIL DENGAN MENGGUNAKAN RFId DAN PC
Get PDFThe number of vehicles increasing day by day. It will trigger the demand of parking area, especially for car park. To overcome this problem, we offer a solution, by creating a miniatur car parking. This Car park only for members whose can park their car in it. Each car will be equiped by a RFId tag (RFid card) and the RFId sensor (Radio Frequency Identification) which will detecting this card . The main function of the RFid card is to detecting every car come and go from the car parking area. The data are readed from the card need to be checked and verified with the database of member identification (Id) by using Visual Basic 6.0 as the interface. The serial port RS 232 used as the interface to connect RFId sensor and Personal computer. The program in AT89S51 microcontroller will control the motor rotation for opening or closing the parking area gate