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Abstract

Heat stress is a serious threat to construction workers that can reduce productivity and even threaten lives. Existing cooling vest innovations still have limitations, such as weight, manual systems, and the risk of leakage. This study aims to analyze the effectiveness of the Automatic Vest (AUVEST), an automatic cooling vest based on Wearable Thermoelectric Cooler and the Internet of Things (IoT), in preventing the risk of heat stress. The method used is experimental with trials on one construction worker in indoor and outdoor environments. AUVEST is equipped with temperature sensors (DS18B20, TMP102) and humidity (DHT11), whose data is processed by an ESP8266 microcontroller to automatically activate the Peltier module based on the Heat Stress Index (HSI) indicator ≥28 and internal temperature ≥35°C. The performance test results show that AUVEST successfully activates the cooling system automatically in outdoor environments, with the temperature reduction rate reaching a peak of 6.91°C in the 7th minute and stabilizing at 6.65°C. AUVEST weighs only 992 grams and has a battery life of 8 hours, outperforming similar products. It was concluded that AUVEST is effective as an innovative, ergonomic, and intelligent solution for heat stress prevention in construction workers.

Keywords: Heat Stress, Construction, Automatic Cooling Vest, Wearable Thermoelectric Cooler

References

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Bahasa Abstract

Heat stress merupakan ancaman serius bagi pekerja konstruksi yang dapat menurunkan produktivitas hingga mengancam jiwa. Inovasi rompi pendingin yang ada masih memiliki keterbatasan, seperti berat, sistem manual, dan risiko kebocoran. Penelitian ini bertujuan untuk menganalisis efektivitas Automatic Vest (AUVEST), sebuah rompi pendingin otomatis berbasis Wearable Thermoelectric Cooler dan Internet of Things (IoT), dalam mencegah risiko heat stress. Metode yang digunakan adalah eksperimental dengan uji coba pada satu pekerja konstruksi di lingkungan dalam dan luar ruangan. AUVEST dilengkapi dengan sensor suhu (DS18B20, TMP102) dan kelembapan (DHT11), yang datanya diproses oleh mikrokontroler ESP8266 untuk mengaktifkan modul Peltier secara otomatis berdasarkan indikator Heat Stress Index (HSI) ≥28 dan suhu internal ≥35°C. Hasil uji performa menunjukkan AUVEST berhasil mengaktifkan sistem pendingin secara otomatis di lingkungan luar ruangan, dengan laju penurunan suhu mencapai puncak 6,91°C pada menit ke-7 dan stabil di 6,65°C. AUVEST memiliki berat hanya 992 gram dan daya tahan 8 jam, lebih unggul dibandingkan produk sejenis. Oleh karena itu, dapat disimpulkan bahwa AUVEST efektif sebagai solusi inovatif yang ergonomis dan cerdas untuk pencegahan heat stress pada pekerja konstruksi.

Kata Kunci: Heat Stress, Konstruksi, Rompi Pendingin Otomatis, Wearable Thermoelectric Cooler

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