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All Journal Jurnal Ilmiah Ilmu dan Teknologi Rekayasa Edukasia: Jurnal Pendidikan dan Pembelajaran
Ibrahim, Hasanudin
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Agriculture, Biological Sciences & Forestry Computer Science & IT Education Languange, Linguistic, Communication & Media Mathematics Other

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Analisis prediktif maintenance berbasis IoT untuk mengurangi downtime pada mesin produksi Khalid, Tadjuddin; Ibrahim, Hasanudin; Dwi, Zulkifli
Jurnal Ilmiah Ilmu dan Teknologi Rekayasa Vol. 8 No. 2 (2025): September 2025
Publisher : UPPM Polsub

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31962/jiitr.v8i2.398

Abstract

Downtime mesin merupakan salah satu penyebab utama penurunan produktivitas di industri manufaktur. Sistem pemeliharaan konvensional seperti preventive maintenance sering kali belum mampu mendeteksi potensi kerusakan secara dini. Teknologi Internet of Things (IoT) menawarkan pendekatan predictive maintenance yang mampu memantau kondisi mesin secara real-time dan memprediksi kegagalan sebelum terjadi. Penelitian ini bertujuan untuk menganalisis efektivitas sistem predictive maintenance berbasis IoT dalam mengurangi downtime mesin produksi. Penelitian dilakukan pada lini produksi PT SDE di Sulawesi Selatan dengan menggunakan sensor getaran, suhu, dan arus listrik yang diintegrasikan ke dalam platform IoT. Desain penelitian menggunakan metode eksperimen semu (quasi-experimental) dengan perbandingan antara kondisi before dan after penerapan sistem selama 3 bulan. Data dianalisis menggunakan paired t-test untuk melihat perbedaan signifikan waktu downtime. Hasil menunjukkan bahwa rata-rata downtime mesin menurun dari 18,4 jam/bulan menjadi 9,7 jam/bulan (penurunan 47,3%). Nilai t = 6,58 dengan p < 0,001 menunjukkan perbedaan signifikan. Sistem IoT juga memungkinkan perawatan dilakukan secara prediktif berdasarkan data kondisi aktual mesin. Dengan demikian, implementasi predictive maintenance berbasis IoT terbukti efektif dalam meningkatkan keandalan mesin dan efisiensi operasional industri manufaktur.
Pengaruh Model Problem Based Learning terhadap Kemampuan Berpikir Kritis Siswa pada Pembelajaran Matematika di Kelas VIII SMP Negeri 1 Bonepantai Ibrahim, Hasanudin; Majid, Majid; Oroh, Franky Alfrits
EDUKASIA Jurnal Pendidikan dan Pembelajaran Vol. 4 No. 2 (2023): Edukasia: Jurnal Pendidikan dan Pembelajaran
Publisher : LP. Ma'arif Janggan Magetan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62775/edukasia.v4i2.485

Abstract

This research is an experimental research which aims to find out whether there is an effect of the Problem Based Learning model on students' critical thinking skills in learning mathematics in class VIII SMP Negeri 1 Bonepantai. The hypothesis in this study is that there is an influence of the Problem Based Learning model on students' critical thinking skills in learning mathematics in class VIII SMP Negeri 1 Bonepantai. The population in this study were class VIII students of SMP Negeri 1 Bonepantai. Sampling was carried out using simple random sampling technique and it was obtained that class VIII'3 was the class taught using the Problem Based Learning model (experimental class) consisting of 23 students and class VIII'2 was the class taught using the Direct Learning model (class control) consisting of 24 students. The design used in the research in this study was the pretest-posttest control group design and the data collection technique was giving a test of critical thinking skills in the form of an essay. Inferential analysis in this study is the Anakova Test. The results of this study indicate that there is an influence of the Problem Based Learning model on students' critical thinking skills, where the mathematical critical thinking abilities of students who are taught with the Problem Based Learning model are higher than students who are taught with direct learning models on opportunity material in class VIII SMP Negeri 1 Bonepantai .
Co-Authors Dwi, Zulkifli Franky Alfrits Oroh Khalid, Tadjuddin Majid, Majid