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Nani Djohan
Universitas Kristen Krida Wacana – Jakarta
Computer Science & IT

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RANCANG BANGUN ALAT PEMANTAU LAJU DETAK JANTUNG SAAT LATIHAN FISIK Harsono, Budi; Liman, Johansah; Djohan, Nani
Teknik dan Ilmu Komputer vol. 1 no. 4 Oktober-Desember 2012
Publisher : Teknik dan Ilmu Komputer

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Knowing heart rates while doing physical exercises is very useful to achieve maximum exercise results. The use of manual method to measure heart rates during physical exercises is not possible; therefore a tool to monitor the heart rate continuously while doing a physical exercise is needed. This research aimed at designing a heart rate monitor to be used during the physical exercise.  The heart rate monitoring was done with reflective photoplethysmography method using a pair of white LED sensor and photodiode. The heart rate monitor made was compared with other heart rate monitor products using photoplethysmography technique. The test results showed that the tool can be used during the physical exercise having a better response rate than the similar products tested. Keywords: heart rate, heart rate monitoring, photoplethysmography, exercise
APLIKASI RFID SEBAGAI PENGAMAN PINTU MASUK Harsono, Budi; Liman, Johansah; Djohan, Nani
Teknik dan Ilmu Komputer vol. 1 no. 1 Januari-Maret 2012
Publisher : Teknik dan Ilmu Komputer

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This paper will discuss the security entrance system with RFID as an identification and detection of the personnel who will access the door of every room that has been fitted with RFID systems. RFID or Radio Frequency Identification Detection is the process of identifying a person or object using radio frequency transmission. RFID security system was applied to the door in the neighborhood Ukrida. Factor of safety, automation, and time efficiency is considered in this study.  Keywords: pengaman pintu masuk, mikrokontroler, RFID
Co-Authors Budi Harsono Johansah Liman