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Journal : Tekinfo | Scientific Journal of Industrial and Information Engineering

Model Persediaan Komponen Lampu Penerangan Jalan Umum (LPJU) pada PT. Qumicon Indonesia menggunakan Pendekatan Heuristic Lot Sizing Yohanes Anton Nugroho
Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi Vol 3 No 2 (2015)
Publisher : Program Studi Teknik Industri Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (452.217 KB)

Abstract

PT. Qumicon Indonesia merupakan industri manufaktur lampu penerangan jalan dan rambu lalu lintas. Persediaan di dalam perusahaan belum direncanakan secara optimal, karena penentuan persediaan hanya didasarkan asumsi dan pengalaman. Penelitian ini bertujuan menganalisis dan merencanakan persediaan komponen lampu penerangan jalan umum (LPJU) tenaga surya 40 watt yang lebih optimal bagi perusahaan. Simulasi digunakan menganalisis dan memilih metode lot sizing, mempertimbangkan tingkat permintaan yang bervariasi serta total biaya persediaan. Metode lot sizing terpilih selanjutnya digunakan dalam perencanaan. Perencanaan persediaan komponen LPJU tahun 2013 menghasilkan total variable cost untuk masing-masing komponen sebesar Rp. 1.853.004 /tahun, sehingga total biaya persediaan menjadi sebesar Rp. 7.412.016. Apabila dalam perencanaan menerapkan safety stock pada service level 90%, maka akan diterapkan safety stock komponen tiang 1 lengan sebanyak 9 unit, komponen tiang 2 lengan sebanyak 21 unit untuk, komponen lampu dan kelistrikan sebanyak 43 unit untuk, serta komponen solar cell sebanyak 25 unit. Penambahan safety stock dengan service level 90% akan menyebabkan penambahan biaya persediaan menjadi sebesar Rp. 49.850.500.
Perancangan Mobile Application Alat Pantau Kualitas Air Kolam Berbasis Internet of Things Yohanes Anton Nugroho; Muhammad Fitra Pratama
Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi Vol 9 No 1 (2020)
Publisher : Program Studi Teknik Industri Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/tekinfo.v9i1.949

Abstract

Changes in temperature, pH, and turbidity in concrete fish ponds greatly impact to the fish survival. Initial observations showed that among 3.067 fish seeds, 1.633 fish (53%) died and only 1.434 fish (47%) was successfully harvested. The application of water quality monitoring devices from concrete pools designed based on the Internet of Things technology has been tested. The monitoring equipment will not function optimally without an application that functions to receive monitoring data and then take action. Pool water quality monitoring equipment connected to the cloud using a GSM network connection. The recorded data is then displayed on the water quality monitoring application that designed using the Android operating system. Application design is developed using a User-Centered Design approach, where the design process was carried out by considering several variables: ease for use, clarity of information delivery, the fulfillment of needs, and appearance. Based on the results of the design evaluation, weaknesses can be determined, namely, difficulty to find the search menu for click history data, find the refresh button, read the results of searching for historical data, and read data in tables and graphs. Based on this, further improvements can be made to improve the application being made. The monitoring equipment is expected to provide information to pond managers to immediately take action if changing in pH and temperature beyond the limit so that the fish mortality rate can be minimized.