Rapid technological development, triggering various applications development that are increasingly innovative. One of them is the Internet of Things (IoT) system that makes human works easier and more effective. Along with sensor technology development in monitoring and controlling through IoT systems, a mechanism is needed to manage bandwidth so that IoT system can function optimally, especially in buildings designated as public areas. Smart building supported by various integrated sensors to maintain safety and comfort in the area. This study proposes the application of Elastic WLAN as a model for dynamic bandwidth management in IoT systems. In this model, IoT bandwidth changes automatically according to the number of traffic measurements for each IoT connected to the network As an effort to determine the performance of the elastic WLAN mechanism, this study succeeded in developing a prototype IoT device that implements Elastic WLAN on an Access-Point Raspberry Pi by using two temperature sensors placed in separate locations. The system successfully allocates bandwidth to each IoT according to the amount of data input from each temperature sensor installed. The higher the amount of data captured by the sensor, the system will automatically allocate the higher bandwidth to the sensor system, and vice versa.
Perkembangan Internet of Things pada masa sekarang sangatlah pesat. salah satu bentuk dari perkembangan itu adalah Sebuah Smart-Building atau bangunan pintar. Pada bangunan pintar memerlukan sebuah bentuk sistem yang dapat mengawasi gedung tersebut secara real time dan efisien. pada penelitian ini merancang sebuah bentuk purwarupa sistem bangunan pintar dengan menambahkan pendeteksi jumlah orang yang menggunakan sensor kamera ESP32cam. Pendeteksian jumlah obyek orang ini mengadaptasi Algoritma YOLOv3 yang dilatih dengan 5 kondisi pencahayaan yang berbeda, diredupkan 50% dan 75%, ditingkatkan 50% dan 75% dan kondisi normal. Pada hasil pengimplementasian ini didapatkan nilai mAP yang melebihi 90% diseluruh kondisi pencahayaan tersebut. Algoritma YOLOv3 yang diterapkan pada sistem purwarupa bangunan pintar telah berhasil dalam mendeteksi dan mengkalkulasi jumlah obyek orang yang ada didalam sebuah gambar yang ditangkap oleh sensor kamera. Kata Kunci— Internet of Things; Object Detection; Smart Building; YOLO
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