IMPLEMENTASI OTOMASI AC RUANG KELAS BERBASIS JADWAL KULIAH MENGGUNAKAN INTERNET OF THINGS DAN ALGORITMA INTERVAL MERGING

Afqilla Regina Putri, Sahirul Alam

Abstract


Penggunaan AC pada ruang kelas kampus sering kali tidak efisien karena unit AC dibiarkan menyala meskipun ruangan tidak digunakan, sehingga menyebabkan pemborosan energi listrik. Penelitian ini merancang dan mengimplementasikan sistem kontrol dan monitoring AC ruang kelas berbasis IoT dengan penjadwalan otomatis melalui web dashboard, yang mengintegrasikan RESTful API berbasis PHP yang dilayani Nginx, dashboard Vanilla JavaScript, node ESP8266 dengan sensor DHT11 dan actuator inframerah, serta node wattmeter ESP32 independen dengan sensor SCT-013 dan ZMPT101B. Kontribusi utama penelitian ini adalah algoritma penggabungan jadwal (interval merging) yang dijalankan melalui otomasi berbasis cron job, sehingga jadwal kuliah yang tumpang tindih digabungkan untuk mencegah short cycling tanpa menghilangkan kendali manual. Evaluasi mencakup pengujian fungsional, performa backend (TTFB dan throughput) pada delapan endpoint RESTful API, serta dampak efisiensi energi. Seluruh skenario fungsional berhasil (100%), rata-rata TTFB berkisar 8,38-27,21 ms, rata-rata throughput berkisar 7,47-274,59 kbps, dan otomasi penjadwalan menurunkan konsumsi energi harian AC dari 39,6 kWh menjadi 27,0 kWh, atau efisiensi sebesar 32,2%.

Keywords


Efisiensi Energi AC; Internet of Things; Otomasi Cron Job; Penggabungan Jadwal; RESTful API

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References


M. L. da Silva Costa, M. R. Freire, K. F. da Silva, and F. G. M. Freires, "Analysis of Energy Consumption Related to the Use of Air Conditioning in University Buildings in a Tropical Climate," RGSA - Rev. Gest. Soc. Ambient., vol. 16, no. 2, 2022, doi: 10.24857/rgsa.v16n2-019.

Z. Y. Yap, M. H. Md Saad, S. Sahrani, K. Habib, and A. Hussain, "Internet of Things (IoT) Based Air Conditioner Monitoring System for Intelligent Facility Maintenance," 2023.

N. Sugiartha, I. D. M. G. S. Okgiarta, I. M. Sugina, and I. D. G. A. T. Putra, "Monitoring Suhu dan Konsumsi Energi AC Split Berbasis Blynk IoT," J. Energy, Mater., & Manuf. Technol. (JEMMTEC), vol. 4, no. 1, pp. 10-14, Jan. 2025.

I. M. S. Yasa, P. E. Aridona, K. Parti, K. A. Yasa, and I. P. Sutawinaya, "Sistem Kontrol dan Monitoring Air Conditioner Berbasis IoT di Gedung Utama Balai Pengelolaan Informasi Sumber Daya Kelautan dan Perikanan," VASTUWIDYA, vol. 8, no. 2, pp. 90-94, Aug. 2025.

E. Mabotha, N. E. Mabunda, and A. Ali, "Dynamic RESTful API Framework and Deployment using Docker: Enhancing IoT Deployment Strategies," in 2024 IEEE PES/IAS PowerAfrica Conference, 2024.

T. Ghozali, G. Ilena, M. Mulyadi, and L. Wijayanti, "Web-Based Air Conditioner Monitoring and Control," Saudi J. Eng. Technol., vol. 7, no. 8, pp. 461-471, Sep. 2022, doi: 10.36348/sjet.2022.v07i08.006.

S. Sharma and P. Randhawa, "IoT-Powered AC Temperature Management for Eco-Smart Infrastructures," in Proc. 2nd Int. Conf. Intell. Data Commun. Technol. Internet of Things (IDCIoT), 2024, doi: 10.1109/IDCIoT59759.2024.10467797.

A. A. Pratama, R. P. Pradana, A. A. Kurniasari, A. F. Rosyady, and D. P. S. Setyohadi, "Smart Campus: Design and Implementation of Lights and Air Conditioners Monitoring and Control System," bit-Tech, vol. 8, no. 3, 2026, doi: 10.32877/bt.v8i3.3406.

T.-T. Huynh, T.-B. Nguyen, and H. Ho-Dac, "A Practical Approach for Air-Conditioner Management System toward Power Saving for Universities," in 2024 Int. Conf. Adv. Technol. Commun. (ATC), 2024.

Waluyo, A. Widura, F. Hadiatna, and R. S. Fikri, "IoT-Based Air Conditioning Control System for Energy Saving," Int. J. Adv. Sci. Eng. Inf. Technol., vol. 13, no. 1, pp. 8-16, Jan. 2023, doi: 10.18517/ijaseit.13.1.17152.

J. S. Yalli, M. H. Hasan, and A. A. Badawi, "Internet of Things (IoT): Origins, Embedded Technologies, Smart Applications, and Its Growth in the Last Decade," IEEE Access, vol. 12, pp. 91357-91382, 2024, doi: 10.1109/ACCESS.2024.3418995.

E. Mabotha, N. E. Mabunda, A. Ali, and B. Khan, "Exploring Dynamic RESTful API Implementation in IoT Environments Using Docker," Sci. Rep., vol. 15, art. no. 34267, 2025, doi: 10.1038/s41598-025-16460-0.

W. Wicoksono, H. A. Mustaqhim, P. P. Anwas, and L. N. L. Badratul, "Performance Comparison of NGINX, Apache, and Lighttpd Using WRK on a Debian," bit-Tech, vol. 8, no. 1, pp. 670-680, Aug. 2025, doi: 10.32877/bt.v8i1.2661.

PHP.net, "PHP: PDO - Manual," 2024. [Online]. Available: https://www.php.net/manual/en/book.pdo.php

S. Akinola, "Trends in Open Source RDBMS: Performance, Scalability and Security Insights," 2024, doi: 10.53469/jrse.2024.06(07).05.

K. Alhajri, W. Alsinan, S. Almuhaishi, F. Alhmood, N. AlJumaia, and A. A. A. Ali, "Analysis and Comparison of Sorting Algorithms (Insertion, Merge, and Heap) Using Java," IJCSNS Int. J. Comput. Sci. Netw. Secur., vol. 22, no. 12, pp. 197-204, Dec. 2022, doi: 10.22937/IJCSNS.2022.22.12.25.

J. Mayank and A. Mondal, "A Unified Job Scheduler for Optimization of Different System Performance Metrics," Concurrency Computat. Pract. Exper., vol. 37, art. no. e70111, 2025, doi: 10.1002/cpe.70111.

Bootstrap, Bootstrap Official Documentation, v5.3, 2024. [Online]. Available: https://getbootstrap.com/docs/5.3/

Chart.js, Chart.js Documentation, v4.x, 2024. [Online]. Available: https://www.chartjs.org/docs/latest/

J. Wagner, "Time to First Byte (TTFB)," web.dev, Google, 2024.




DOI: https://doi.org/10.35334/eb.v12i2.7569

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