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Irda Winarsih
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Electrical & Electronics Engineering

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SISTEM PARKIR OTOMATIS MENGGUNAKAN RFID BERBASISKAN MIKROKONTROLER AT 89S51 Winarsih, Irda; Mahendra, Reza
Jurnal Teknik Elektro Vol 8, No 2 (2009)
Publisher : Jurnal Teknik Elektro

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The Automatic Parking System is a system which automatize park of the car where we do notneed wasting our time in searching for a vacant place parking the car. Only with the RFIDtag touch hence our car will be parked automatically in place which we have determinedpreviously. This appliance use a microcontroler AT89S51 as controller brain, RFID card asidentification of the car owner, and some base lifts which made and designed in a such waycould move freely and basically driven by electric motors. In this system, microcontroller isused to arrange and control the movement and the position of car contained base lifts to beparked. After being identified the car ID by microcontroller and the driver has left the car,the system then started working until the parking process completed and the microcontrollerwill command the motor to return and move the empty base back the place ,standing by fornew process. The car retrieval process car happened on the contrary. The pallet liftmovement is motorized by four 12 VDC power motors gearbox.Keywords: Parking, Microcontroller, RFID, Motor gearbox.
IMPLEMENTASI FILTER DIGITAL IIR BUTTERWORTH PADA DSP STARTER KIT TMS320C3x Winarsih, Irda; Agoes, Suhartati; Wahyudi, Robert
Jurnal Teknik Elektro Vol 2, No 2 (2003)
Publisher : Jurnal Teknik Elektro

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This article converses TMS320C3x DSP Starter Kit (DSK) board utilization as Butterworthinfinite impulse response (IIR) digital filter. Specification parameters of the filter can bechanged as long as they do not exceed performance limits of the DSK board.The resulted Butterworth filter performance is compared to the theoretical one obtainedusing Matlab signal processing toolbox. Test result shows that performance of theimplemented filter is similar with its theoretical model.Keywords: Butterworth, TMS320C3x DSK, infinite impulse response, digital filter
PENGAMATAN PERILAKU TRANSIENT Winarsih, Irda
Jurnal Teknik Elektro Vol 1, No 2 (2002)
Publisher : Jurnal Teknik Elektro

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Observation on transient behavior is crucial because from this stuty we are able tocomprehend major parameters possessed by various electrical and electronic appliances.For this purpose of observation, appropriate measuring instruments/ equipments arenecessary. Sometimes it is difficult in realizing the expected observation. In many cases,transient behavior can improve the performance and efficiency of electrical devices; while insome other cases it may result in instability, or even failure in the system. By studying theresponses of RLC circuit, at least we can have some interpretation and explanation about thefundamental of transient bahavior in numerous electrical and electronic equipments. Thereare several parameters, which can be analyzed such as maximum voltage and time (peaktime tm and settling time ts), from the RLC circuits discussed in the next topic.Keywords: Transient, RLC circuits, peak time, settling time.
Co-Authors Reza Mahendra Robert Wahyudi Suhartati Agoes